From 92ba4a62abc1f6e7d2e758f924a82eec7eb5f3d8 Mon Sep 17 00:00:00 2001
From: Matthew Ma <matthew.ma@kitware.com>
Date: Fri, 22 Sep 2017 11:19:57 -0400
Subject: [PATCH] Remove more unnecessarily committed files

---
 built/geo.ext.js     | 12284 --------
 built/geo.ext.min.js |    11 -
 built/geo.js         | 62696 -----------------------------------------
 built/geo.min.js     |    67 -
 4 files changed, 75058 deletions(-)
 delete mode 100644 built/geo.ext.js
 delete mode 100644 built/geo.ext.min.js
 delete mode 100644 built/geo.js
 delete mode 100644 built/geo.min.js

diff --git a/built/geo.ext.js b/built/geo.ext.js
deleted file mode 100644
index ec3af4f232..0000000000
--- a/built/geo.ext.js
+++ /dev/null
@@ -1,12284 +0,0 @@
-/******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId])
-/******/ 			return installedModules[moduleId].exports;
-
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			exports: {},
-/******/ 			id: moduleId,
-/******/ 			loaded: false
-/******/ 		};
-
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-
-/******/ 		// Flag the module as loaded
-/******/ 		module.loaded = true;
-
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-
-
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "dist/built";
-
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(0);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	// License headers that will be preserved in distributed bundles.
-	/**
-	 * d3
-	 * @copyright 2010-2016, Michael Bostock
-	 * @license BSD-3-Clause
-	 */
-	var globals = {
-	  d3: __webpack_require__(1),
-	  hammerjs: __webpack_require__(3)
-	};
-
-	module.exports = globals;
-
-
-/***/ }),
-/* 1 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/* WEBPACK VAR INJECTION */(function(global) {module.exports = global["d3"] = __webpack_require__(2);
-	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
-
-/***/ }),
-/* 2 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;!function() {
-	  var d3 = {
-	    version: "3.5.17"
-	  };
-	  var d3_arraySlice = [].slice, d3_array = function(list) {
-	    return d3_arraySlice.call(list);
-	  };
-	  var d3_document = this.document;
-	  function d3_documentElement(node) {
-	    return node && (node.ownerDocument || node.document || node).documentElement;
-	  }
-	  function d3_window(node) {
-	    return node && (node.ownerDocument && node.ownerDocument.defaultView || node.document && node || node.defaultView);
-	  }
-	  if (d3_document) {
-	    try {
-	      d3_array(d3_document.documentElement.childNodes)[0].nodeType;
-	    } catch (e) {
-	      d3_array = function(list) {
-	        var i = list.length, array = new Array(i);
-	        while (i--) array[i] = list[i];
-	        return array;
-	      };
-	    }
-	  }
-	  if (!Date.now) Date.now = function() {
-	    return +new Date();
-	  };
-	  if (d3_document) {
-	    try {
-	      d3_document.createElement("DIV").style.setProperty("opacity", 0, "");
-	    } catch (error) {
-	      var d3_element_prototype = this.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = this.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
-	      d3_element_prototype.setAttribute = function(name, value) {
-	        d3_element_setAttribute.call(this, name, value + "");
-	      };
-	      d3_element_prototype.setAttributeNS = function(space, local, value) {
-	        d3_element_setAttributeNS.call(this, space, local, value + "");
-	      };
-	      d3_style_prototype.setProperty = function(name, value, priority) {
-	        d3_style_setProperty.call(this, name, value + "", priority);
-	      };
-	    }
-	  }
-	  d3.ascending = d3_ascending;
-	  function d3_ascending(a, b) {
-	    return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
-	  }
-	  d3.descending = function(a, b) {
-	    return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
-	  };
-	  d3.min = function(array, f) {
-	    var i = -1, n = array.length, a, b;
-	    if (arguments.length === 1) {
-	      while (++i < n) if ((b = array[i]) != null && b >= b) {
-	        a = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = array[i]) != null && a > b) a = b;
-	    } else {
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
-	        a = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
-	    }
-	    return a;
-	  };
-	  d3.max = function(array, f) {
-	    var i = -1, n = array.length, a, b;
-	    if (arguments.length === 1) {
-	      while (++i < n) if ((b = array[i]) != null && b >= b) {
-	        a = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = array[i]) != null && b > a) a = b;
-	    } else {
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
-	        a = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
-	    }
-	    return a;
-	  };
-	  d3.extent = function(array, f) {
-	    var i = -1, n = array.length, a, b, c;
-	    if (arguments.length === 1) {
-	      while (++i < n) if ((b = array[i]) != null && b >= b) {
-	        a = c = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = array[i]) != null) {
-	        if (a > b) a = b;
-	        if (c < b) c = b;
-	      }
-	    } else {
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null && b >= b) {
-	        a = c = b;
-	        break;
-	      }
-	      while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
-	        if (a > b) a = b;
-	        if (c < b) c = b;
-	      }
-	    }
-	    return [ a, c ];
-	  };
-	  function d3_number(x) {
-	    return x === null ? NaN : +x;
-	  }
-	  function d3_numeric(x) {
-	    return !isNaN(x);
-	  }
-	  d3.sum = function(array, f) {
-	    var s = 0, n = array.length, a, i = -1;
-	    if (arguments.length === 1) {
-	      while (++i < n) if (d3_numeric(a = +array[i])) s += a;
-	    } else {
-	      while (++i < n) if (d3_numeric(a = +f.call(array, array[i], i))) s += a;
-	    }
-	    return s;
-	  };
-	  d3.mean = function(array, f) {
-	    var s = 0, n = array.length, a, i = -1, j = n;
-	    if (arguments.length === 1) {
-	      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) s += a; else --j;
-	    } else {
-	      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) s += a; else --j;
-	    }
-	    if (j) return s / j;
-	  };
-	  d3.quantile = function(values, p) {
-	    var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
-	    return e ? v + e * (values[h] - v) : v;
-	  };
-	  d3.median = function(array, f) {
-	    var numbers = [], n = array.length, a, i = -1;
-	    if (arguments.length === 1) {
-	      while (++i < n) if (d3_numeric(a = d3_number(array[i]))) numbers.push(a);
-	    } else {
-	      while (++i < n) if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) numbers.push(a);
-	    }
-	    if (numbers.length) return d3.quantile(numbers.sort(d3_ascending), .5);
-	  };
-	  d3.variance = function(array, f) {
-	    var n = array.length, m = 0, a, d, s = 0, i = -1, j = 0;
-	    if (arguments.length === 1) {
-	      while (++i < n) {
-	        if (d3_numeric(a = d3_number(array[i]))) {
-	          d = a - m;
-	          m += d / ++j;
-	          s += d * (a - m);
-	        }
-	      }
-	    } else {
-	      while (++i < n) {
-	        if (d3_numeric(a = d3_number(f.call(array, array[i], i)))) {
-	          d = a - m;
-	          m += d / ++j;
-	          s += d * (a - m);
-	        }
-	      }
-	    }
-	    if (j > 1) return s / (j - 1);
-	  };
-	  d3.deviation = function() {
-	    var v = d3.variance.apply(this, arguments);
-	    return v ? Math.sqrt(v) : v;
-	  };
-	  function d3_bisector(compare) {
-	    return {
-	      left: function(a, x, lo, hi) {
-	        if (arguments.length < 3) lo = 0;
-	        if (arguments.length < 4) hi = a.length;
-	        while (lo < hi) {
-	          var mid = lo + hi >>> 1;
-	          if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;
-	        }
-	        return lo;
-	      },
-	      right: function(a, x, lo, hi) {
-	        if (arguments.length < 3) lo = 0;
-	        if (arguments.length < 4) hi = a.length;
-	        while (lo < hi) {
-	          var mid = lo + hi >>> 1;
-	          if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;
-	        }
-	        return lo;
-	      }
-	    };
-	  }
-	  var d3_bisect = d3_bisector(d3_ascending);
-	  d3.bisectLeft = d3_bisect.left;
-	  d3.bisect = d3.bisectRight = d3_bisect.right;
-	  d3.bisector = function(f) {
-	    return d3_bisector(f.length === 1 ? function(d, x) {
-	      return d3_ascending(f(d), x);
-	    } : f);
-	  };
-	  d3.shuffle = function(array, i0, i1) {
-	    if ((m = arguments.length) < 3) {
-	      i1 = array.length;
-	      if (m < 2) i0 = 0;
-	    }
-	    var m = i1 - i0, t, i;
-	    while (m) {
-	      i = Math.random() * m-- | 0;
-	      t = array[m + i0], array[m + i0] = array[i + i0], array[i + i0] = t;
-	    }
-	    return array;
-	  };
-	  d3.permute = function(array, indexes) {
-	    var i = indexes.length, permutes = new Array(i);
-	    while (i--) permutes[i] = array[indexes[i]];
-	    return permutes;
-	  };
-	  d3.pairs = function(array) {
-	    var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);
-	    while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ];
-	    return pairs;
-	  };
-	  d3.transpose = function(matrix) {
-	    if (!(n = matrix.length)) return [];
-	    for (var i = -1, m = d3.min(matrix, d3_transposeLength), transpose = new Array(m); ++i < m; ) {
-	      for (var j = -1, n, row = transpose[i] = new Array(n); ++j < n; ) {
-	        row[j] = matrix[j][i];
-	      }
-	    }
-	    return transpose;
-	  };
-	  function d3_transposeLength(d) {
-	    return d.length;
-	  }
-	  d3.zip = function() {
-	    return d3.transpose(arguments);
-	  };
-	  d3.keys = function(map) {
-	    var keys = [];
-	    for (var key in map) keys.push(key);
-	    return keys;
-	  };
-	  d3.values = function(map) {
-	    var values = [];
-	    for (var key in map) values.push(map[key]);
-	    return values;
-	  };
-	  d3.entries = function(map) {
-	    var entries = [];
-	    for (var key in map) entries.push({
-	      key: key,
-	      value: map[key]
-	    });
-	    return entries;
-	  };
-	  d3.merge = function(arrays) {
-	    var n = arrays.length, m, i = -1, j = 0, merged, array;
-	    while (++i < n) j += arrays[i].length;
-	    merged = new Array(j);
-	    while (--n >= 0) {
-	      array = arrays[n];
-	      m = array.length;
-	      while (--m >= 0) {
-	        merged[--j] = array[m];
-	      }
-	    }
-	    return merged;
-	  };
-	  var abs = Math.abs;
-	  d3.range = function(start, stop, step) {
-	    if (arguments.length < 3) {
-	      step = 1;
-	      if (arguments.length < 2) {
-	        stop = start;
-	        start = 0;
-	      }
-	    }
-	    if ((stop - start) / step === Infinity) throw new Error("infinite range");
-	    var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;
-	    start *= k, stop *= k, step *= k;
-	    if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
-	    return range;
-	  };
-	  function d3_range_integerScale(x) {
-	    var k = 1;
-	    while (x * k % 1) k *= 10;
-	    return k;
-	  }
-	  function d3_class(ctor, properties) {
-	    for (var key in properties) {
-	      Object.defineProperty(ctor.prototype, key, {
-	        value: properties[key],
-	        enumerable: false
-	      });
-	    }
-	  }
-	  d3.map = function(object, f) {
-	    var map = new d3_Map();
-	    if (object instanceof d3_Map) {
-	      object.forEach(function(key, value) {
-	        map.set(key, value);
-	      });
-	    } else if (Array.isArray(object)) {
-	      var i = -1, n = object.length, o;
-	      if (arguments.length === 1) while (++i < n) map.set(i, object[i]); else while (++i < n) map.set(f.call(object, o = object[i], i), o);
-	    } else {
-	      for (var key in object) map.set(key, object[key]);
-	    }
-	    return map;
-	  };
-	  function d3_Map() {
-	    this._ = Object.create(null);
-	  }
-	  var d3_map_proto = "__proto__", d3_map_zero = "\x00";
-	  d3_class(d3_Map, {
-	    has: d3_map_has,
-	    get: function(key) {
-	      return this._[d3_map_escape(key)];
-	    },
-	    set: function(key, value) {
-	      return this._[d3_map_escape(key)] = value;
-	    },
-	    remove: d3_map_remove,
-	    keys: d3_map_keys,
-	    values: function() {
-	      var values = [];
-	      for (var key in this._) values.push(this._[key]);
-	      return values;
-	    },
-	    entries: function() {
-	      var entries = [];
-	      for (var key in this._) entries.push({
-	        key: d3_map_unescape(key),
-	        value: this._[key]
-	      });
-	      return entries;
-	    },
-	    size: d3_map_size,
-	    empty: d3_map_empty,
-	    forEach: function(f) {
-	      for (var key in this._) f.call(this, d3_map_unescape(key), this._[key]);
-	    }
-	  });
-	  function d3_map_escape(key) {
-	    return (key += "") === d3_map_proto || key[0] === d3_map_zero ? d3_map_zero + key : key;
-	  }
-	  function d3_map_unescape(key) {
-	    return (key += "")[0] === d3_map_zero ? key.slice(1) : key;
-	  }
-	  function d3_map_has(key) {
-	    return d3_map_escape(key) in this._;
-	  }
-	  function d3_map_remove(key) {
-	    return (key = d3_map_escape(key)) in this._ && delete this._[key];
-	  }
-	  function d3_map_keys() {
-	    var keys = [];
-	    for (var key in this._) keys.push(d3_map_unescape(key));
-	    return keys;
-	  }
-	  function d3_map_size() {
-	    var size = 0;
-	    for (var key in this._) ++size;
-	    return size;
-	  }
-	  function d3_map_empty() {
-	    for (var key in this._) return false;
-	    return true;
-	  }
-	  d3.nest = function() {
-	    var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
-	    function map(mapType, array, depth) {
-	      if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
-	      var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
-	      while (++i < n) {
-	        if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
-	          values.push(object);
-	        } else {
-	          valuesByKey.set(keyValue, [ object ]);
-	        }
-	      }
-	      if (mapType) {
-	        object = mapType();
-	        setter = function(keyValue, values) {
-	          object.set(keyValue, map(mapType, values, depth));
-	        };
-	      } else {
-	        object = {};
-	        setter = function(keyValue, values) {
-	          object[keyValue] = map(mapType, values, depth);
-	        };
-	      }
-	      valuesByKey.forEach(setter);
-	      return object;
-	    }
-	    function entries(map, depth) {
-	      if (depth >= keys.length) return map;
-	      var array = [], sortKey = sortKeys[depth++];
-	      map.forEach(function(key, keyMap) {
-	        array.push({
-	          key: key,
-	          values: entries(keyMap, depth)
-	        });
-	      });
-	      return sortKey ? array.sort(function(a, b) {
-	        return sortKey(a.key, b.key);
-	      }) : array;
-	    }
-	    nest.map = function(array, mapType) {
-	      return map(mapType, array, 0);
-	    };
-	    nest.entries = function(array) {
-	      return entries(map(d3.map, array, 0), 0);
-	    };
-	    nest.key = function(d) {
-	      keys.push(d);
-	      return nest;
-	    };
-	    nest.sortKeys = function(order) {
-	      sortKeys[keys.length - 1] = order;
-	      return nest;
-	    };
-	    nest.sortValues = function(order) {
-	      sortValues = order;
-	      return nest;
-	    };
-	    nest.rollup = function(f) {
-	      rollup = f;
-	      return nest;
-	    };
-	    return nest;
-	  };
-	  d3.set = function(array) {
-	    var set = new d3_Set();
-	    if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);
-	    return set;
-	  };
-	  function d3_Set() {
-	    this._ = Object.create(null);
-	  }
-	  d3_class(d3_Set, {
-	    has: d3_map_has,
-	    add: function(key) {
-	      this._[d3_map_escape(key += "")] = true;
-	      return key;
-	    },
-	    remove: d3_map_remove,
-	    values: d3_map_keys,
-	    size: d3_map_size,
-	    empty: d3_map_empty,
-	    forEach: function(f) {
-	      for (var key in this._) f.call(this, d3_map_unescape(key));
-	    }
-	  });
-	  d3.behavior = {};
-	  function d3_identity(d) {
-	    return d;
-	  }
-	  d3.rebind = function(target, source) {
-	    var i = 1, n = arguments.length, method;
-	    while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
-	    return target;
-	  };
-	  function d3_rebind(target, source, method) {
-	    return function() {
-	      var value = method.apply(source, arguments);
-	      return value === source ? target : value;
-	    };
-	  }
-	  function d3_vendorSymbol(object, name) {
-	    if (name in object) return name;
-	    name = name.charAt(0).toUpperCase() + name.slice(1);
-	    for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
-	      var prefixName = d3_vendorPrefixes[i] + name;
-	      if (prefixName in object) return prefixName;
-	    }
-	  }
-	  var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ];
-	  function d3_noop() {}
-	  d3.dispatch = function() {
-	    var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
-	    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
-	    return dispatch;
-	  };
-	  function d3_dispatch() {}
-	  d3_dispatch.prototype.on = function(type, listener) {
-	    var i = type.indexOf("."), name = "";
-	    if (i >= 0) {
-	      name = type.slice(i + 1);
-	      type = type.slice(0, i);
-	    }
-	    if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
-	    if (arguments.length === 2) {
-	      if (listener == null) for (type in this) {
-	        if (this.hasOwnProperty(type)) this[type].on(name, null);
-	      }
-	      return this;
-	    }
-	  };
-	  function d3_dispatch_event(dispatch) {
-	    var listeners = [], listenerByName = new d3_Map();
-	    function event() {
-	      var z = listeners, i = -1, n = z.length, l;
-	      while (++i < n) if (l = z[i].on) l.apply(this, arguments);
-	      return dispatch;
-	    }
-	    event.on = function(name, listener) {
-	      var l = listenerByName.get(name), i;
-	      if (arguments.length < 2) return l && l.on;
-	      if (l) {
-	        l.on = null;
-	        listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
-	        listenerByName.remove(name);
-	      }
-	      if (listener) listeners.push(listenerByName.set(name, {
-	        on: listener
-	      }));
-	      return dispatch;
-	    };
-	    return event;
-	  }
-	  d3.event = null;
-	  function d3_eventPreventDefault() {
-	    d3.event.preventDefault();
-	  }
-	  function d3_eventSource() {
-	    var e = d3.event, s;
-	    while (s = e.sourceEvent) e = s;
-	    return e;
-	  }
-	  function d3_eventDispatch(target) {
-	    var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
-	    while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
-	    dispatch.of = function(thiz, argumentz) {
-	      return function(e1) {
-	        try {
-	          var e0 = e1.sourceEvent = d3.event;
-	          e1.target = target;
-	          d3.event = e1;
-	          dispatch[e1.type].apply(thiz, argumentz);
-	        } finally {
-	          d3.event = e0;
-	        }
-	      };
-	    };
-	    return dispatch;
-	  }
-	  d3.requote = function(s) {
-	    return s.replace(d3_requote_re, "\\$&");
-	  };
-	  var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
-	  var d3_subclass = {}.__proto__ ? function(object, prototype) {
-	    object.__proto__ = prototype;
-	  } : function(object, prototype) {
-	    for (var property in prototype) object[property] = prototype[property];
-	  };
-	  function d3_selection(groups) {
-	    d3_subclass(groups, d3_selectionPrototype);
-	    return groups;
-	  }
-	  var d3_select = function(s, n) {
-	    return n.querySelector(s);
-	  }, d3_selectAll = function(s, n) {
-	    return n.querySelectorAll(s);
-	  }, d3_selectMatches = function(n, s) {
-	    var d3_selectMatcher = n.matches || n[d3_vendorSymbol(n, "matchesSelector")];
-	    d3_selectMatches = function(n, s) {
-	      return d3_selectMatcher.call(n, s);
-	    };
-	    return d3_selectMatches(n, s);
-	  };
-	  if (typeof Sizzle === "function") {
-	    d3_select = function(s, n) {
-	      return Sizzle(s, n)[0] || null;
-	    };
-	    d3_selectAll = Sizzle;
-	    d3_selectMatches = Sizzle.matchesSelector;
-	  }
-	  d3.selection = function() {
-	    return d3.select(d3_document.documentElement);
-	  };
-	  var d3_selectionPrototype = d3.selection.prototype = [];
-	  d3_selectionPrototype.select = function(selector) {
-	    var subgroups = [], subgroup, subnode, group, node;
-	    selector = d3_selection_selector(selector);
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      subgroups.push(subgroup = []);
-	      subgroup.parentNode = (group = this[j]).parentNode;
-	      for (var i = -1, n = group.length; ++i < n; ) {
-	        if (node = group[i]) {
-	          subgroup.push(subnode = selector.call(node, node.__data__, i, j));
-	          if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
-	        } else {
-	          subgroup.push(null);
-	        }
-	      }
-	    }
-	    return d3_selection(subgroups);
-	  };
-	  function d3_selection_selector(selector) {
-	    return typeof selector === "function" ? selector : function() {
-	      return d3_select(selector, this);
-	    };
-	  }
-	  d3_selectionPrototype.selectAll = function(selector) {
-	    var subgroups = [], subgroup, node;
-	    selector = d3_selection_selectorAll(selector);
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-	        if (node = group[i]) {
-	          subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));
-	          subgroup.parentNode = node;
-	        }
-	      }
-	    }
-	    return d3_selection(subgroups);
-	  };
-	  function d3_selection_selectorAll(selector) {
-	    return typeof selector === "function" ? selector : function() {
-	      return d3_selectAll(selector, this);
-	    };
-	  }
-	  var d3_nsXhtml = "http://www.w3.org/1999/xhtml";
-	  var d3_nsPrefix = {
-	    svg: "http://www.w3.org/2000/svg",
-	    xhtml: d3_nsXhtml,
-	    xlink: "http://www.w3.org/1999/xlink",
-	    xml: "http://www.w3.org/XML/1998/namespace",
-	    xmlns: "http://www.w3.org/2000/xmlns/"
-	  };
-	  d3.ns = {
-	    prefix: d3_nsPrefix,
-	    qualify: function(name) {
-	      var i = name.indexOf(":"), prefix = name;
-	      if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
-	      return d3_nsPrefix.hasOwnProperty(prefix) ? {
-	        space: d3_nsPrefix[prefix],
-	        local: name
-	      } : name;
-	    }
-	  };
-	  d3_selectionPrototype.attr = function(name, value) {
-	    if (arguments.length < 2) {
-	      if (typeof name === "string") {
-	        var node = this.node();
-	        name = d3.ns.qualify(name);
-	        return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
-	      }
-	      for (value in name) this.each(d3_selection_attr(value, name[value]));
-	      return this;
-	    }
-	    return this.each(d3_selection_attr(name, value));
-	  };
-	  function d3_selection_attr(name, value) {
-	    name = d3.ns.qualify(name);
-	    function attrNull() {
-	      this.removeAttribute(name);
-	    }
-	    function attrNullNS() {
-	      this.removeAttributeNS(name.space, name.local);
-	    }
-	    function attrConstant() {
-	      this.setAttribute(name, value);
-	    }
-	    function attrConstantNS() {
-	      this.setAttributeNS(name.space, name.local, value);
-	    }
-	    function attrFunction() {
-	      var x = value.apply(this, arguments);
-	      if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
-	    }
-	    function attrFunctionNS() {
-	      var x = value.apply(this, arguments);
-	      if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
-	    }
-	    return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
-	  }
-	  function d3_collapse(s) {
-	    return s.trim().replace(/\s+/g, " ");
-	  }
-	  d3_selectionPrototype.classed = function(name, value) {
-	    if (arguments.length < 2) {
-	      if (typeof name === "string") {
-	        var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;
-	        if (value = node.classList) {
-	          while (++i < n) if (!value.contains(name[i])) return false;
-	        } else {
-	          value = node.getAttribute("class");
-	          while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
-	        }
-	        return true;
-	      }
-	      for (value in name) this.each(d3_selection_classed(value, name[value]));
-	      return this;
-	    }
-	    return this.each(d3_selection_classed(name, value));
-	  };
-	  function d3_selection_classedRe(name) {
-	    return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
-	  }
-	  function d3_selection_classes(name) {
-	    return (name + "").trim().split(/^|\s+/);
-	  }
-	  function d3_selection_classed(name, value) {
-	    name = d3_selection_classes(name).map(d3_selection_classedName);
-	    var n = name.length;
-	    function classedConstant() {
-	      var i = -1;
-	      while (++i < n) name[i](this, value);
-	    }
-	    function classedFunction() {
-	      var i = -1, x = value.apply(this, arguments);
-	      while (++i < n) name[i](this, x);
-	    }
-	    return typeof value === "function" ? classedFunction : classedConstant;
-	  }
-	  function d3_selection_classedName(name) {
-	    var re = d3_selection_classedRe(name);
-	    return function(node, value) {
-	      if (c = node.classList) return value ? c.add(name) : c.remove(name);
-	      var c = node.getAttribute("class") || "";
-	      if (value) {
-	        re.lastIndex = 0;
-	        if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
-	      } else {
-	        node.setAttribute("class", d3_collapse(c.replace(re, " ")));
-	      }
-	    };
-	  }
-	  d3_selectionPrototype.style = function(name, value, priority) {
-	    var n = arguments.length;
-	    if (n < 3) {
-	      if (typeof name !== "string") {
-	        if (n < 2) value = "";
-	        for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
-	        return this;
-	      }
-	      if (n < 2) {
-	        var node = this.node();
-	        return d3_window(node).getComputedStyle(node, null).getPropertyValue(name);
-	      }
-	      priority = "";
-	    }
-	    return this.each(d3_selection_style(name, value, priority));
-	  };
-	  function d3_selection_style(name, value, priority) {
-	    function styleNull() {
-	      this.style.removeProperty(name);
-	    }
-	    function styleConstant() {
-	      this.style.setProperty(name, value, priority);
-	    }
-	    function styleFunction() {
-	      var x = value.apply(this, arguments);
-	      if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
-	    }
-	    return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
-	  }
-	  d3_selectionPrototype.property = function(name, value) {
-	    if (arguments.length < 2) {
-	      if (typeof name === "string") return this.node()[name];
-	      for (value in name) this.each(d3_selection_property(value, name[value]));
-	      return this;
-	    }
-	    return this.each(d3_selection_property(name, value));
-	  };
-	  function d3_selection_property(name, value) {
-	    function propertyNull() {
-	      delete this[name];
-	    }
-	    function propertyConstant() {
-	      this[name] = value;
-	    }
-	    function propertyFunction() {
-	      var x = value.apply(this, arguments);
-	      if (x == null) delete this[name]; else this[name] = x;
-	    }
-	    return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
-	  }
-	  d3_selectionPrototype.text = function(value) {
-	    return arguments.length ? this.each(typeof value === "function" ? function() {
-	      var v = value.apply(this, arguments);
-	      this.textContent = v == null ? "" : v;
-	    } : value == null ? function() {
-	      this.textContent = "";
-	    } : function() {
-	      this.textContent = value;
-	    }) : this.node().textContent;
-	  };
-	  d3_selectionPrototype.html = function(value) {
-	    return arguments.length ? this.each(typeof value === "function" ? function() {
-	      var v = value.apply(this, arguments);
-	      this.innerHTML = v == null ? "" : v;
-	    } : value == null ? function() {
-	      this.innerHTML = "";
-	    } : function() {
-	      this.innerHTML = value;
-	    }) : this.node().innerHTML;
-	  };
-	  d3_selectionPrototype.append = function(name) {
-	    name = d3_selection_creator(name);
-	    return this.select(function() {
-	      return this.appendChild(name.apply(this, arguments));
-	    });
-	  };
-	  function d3_selection_creator(name) {
-	    function create() {
-	      var document = this.ownerDocument, namespace = this.namespaceURI;
-	      return namespace === d3_nsXhtml && document.documentElement.namespaceURI === d3_nsXhtml ? document.createElement(name) : document.createElementNS(namespace, name);
-	    }
-	    function createNS() {
-	      return this.ownerDocument.createElementNS(name.space, name.local);
-	    }
-	    return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? createNS : create;
-	  }
-	  d3_selectionPrototype.insert = function(name, before) {
-	    name = d3_selection_creator(name);
-	    before = d3_selection_selector(before);
-	    return this.select(function() {
-	      return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
-	    });
-	  };
-	  d3_selectionPrototype.remove = function() {
-	    return this.each(d3_selectionRemove);
-	  };
-	  function d3_selectionRemove() {
-	    var parent = this.parentNode;
-	    if (parent) parent.removeChild(this);
-	  }
-	  d3_selectionPrototype.data = function(value, key) {
-	    var i = -1, n = this.length, group, node;
-	    if (!arguments.length) {
-	      value = new Array(n = (group = this[0]).length);
-	      while (++i < n) {
-	        if (node = group[i]) {
-	          value[i] = node.__data__;
-	        }
-	      }
-	      return value;
-	    }
-	    function bind(group, groupData) {
-	      var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
-	      if (key) {
-	        var nodeByKeyValue = new d3_Map(), keyValues = new Array(n), keyValue;
-	        for (i = -1; ++i < n; ) {
-	          if (node = group[i]) {
-	            if (nodeByKeyValue.has(keyValue = key.call(node, node.__data__, i))) {
-	              exitNodes[i] = node;
-	            } else {
-	              nodeByKeyValue.set(keyValue, node);
-	            }
-	            keyValues[i] = keyValue;
-	          }
-	        }
-	        for (i = -1; ++i < m; ) {
-	          if (!(node = nodeByKeyValue.get(keyValue = key.call(groupData, nodeData = groupData[i], i)))) {
-	            enterNodes[i] = d3_selection_dataNode(nodeData);
-	          } else if (node !== true) {
-	            updateNodes[i] = node;
-	            node.__data__ = nodeData;
-	          }
-	          nodeByKeyValue.set(keyValue, true);
-	        }
-	        for (i = -1; ++i < n; ) {
-	          if (i in keyValues && nodeByKeyValue.get(keyValues[i]) !== true) {
-	            exitNodes[i] = group[i];
-	          }
-	        }
-	      } else {
-	        for (i = -1; ++i < n0; ) {
-	          node = group[i];
-	          nodeData = groupData[i];
-	          if (node) {
-	            node.__data__ = nodeData;
-	            updateNodes[i] = node;
-	          } else {
-	            enterNodes[i] = d3_selection_dataNode(nodeData);
-	          }
-	        }
-	        for (;i < m; ++i) {
-	          enterNodes[i] = d3_selection_dataNode(groupData[i]);
-	        }
-	        for (;i < n; ++i) {
-	          exitNodes[i] = group[i];
-	        }
-	      }
-	      enterNodes.update = updateNodes;
-	      enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
-	      enter.push(enterNodes);
-	      update.push(updateNodes);
-	      exit.push(exitNodes);
-	    }
-	    var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
-	    if (typeof value === "function") {
-	      while (++i < n) {
-	        bind(group = this[i], value.call(group, group.parentNode.__data__, i));
-	      }
-	    } else {
-	      while (++i < n) {
-	        bind(group = this[i], value);
-	      }
-	    }
-	    update.enter = function() {
-	      return enter;
-	    };
-	    update.exit = function() {
-	      return exit;
-	    };
-	    return update;
-	  };
-	  function d3_selection_dataNode(data) {
-	    return {
-	      __data__: data
-	    };
-	  }
-	  d3_selectionPrototype.datum = function(value) {
-	    return arguments.length ? this.property("__data__", value) : this.property("__data__");
-	  };
-	  d3_selectionPrototype.filter = function(filter) {
-	    var subgroups = [], subgroup, group, node;
-	    if (typeof filter !== "function") filter = d3_selection_filter(filter);
-	    for (var j = 0, m = this.length; j < m; j++) {
-	      subgroups.push(subgroup = []);
-	      subgroup.parentNode = (group = this[j]).parentNode;
-	      for (var i = 0, n = group.length; i < n; i++) {
-	        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
-	          subgroup.push(node);
-	        }
-	      }
-	    }
-	    return d3_selection(subgroups);
-	  };
-	  function d3_selection_filter(selector) {
-	    return function() {
-	      return d3_selectMatches(this, selector);
-	    };
-	  }
-	  d3_selectionPrototype.order = function() {
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
-	        if (node = group[i]) {
-	          if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
-	          next = node;
-	        }
-	      }
-	    }
-	    return this;
-	  };
-	  d3_selectionPrototype.sort = function(comparator) {
-	    comparator = d3_selection_sortComparator.apply(this, arguments);
-	    for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
-	    return this.order();
-	  };
-	  function d3_selection_sortComparator(comparator) {
-	    if (!arguments.length) comparator = d3_ascending;
-	    return function(a, b) {
-	      return a && b ? comparator(a.__data__, b.__data__) : !a - !b;
-	    };
-	  }
-	  d3_selectionPrototype.each = function(callback) {
-	    return d3_selection_each(this, function(node, i, j) {
-	      callback.call(node, node.__data__, i, j);
-	    });
-	  };
-	  function d3_selection_each(groups, callback) {
-	    for (var j = 0, m = groups.length; j < m; j++) {
-	      for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
-	        if (node = group[i]) callback(node, i, j);
-	      }
-	    }
-	    return groups;
-	  }
-	  d3_selectionPrototype.call = function(callback) {
-	    var args = d3_array(arguments);
-	    callback.apply(args[0] = this, args);
-	    return this;
-	  };
-	  d3_selectionPrototype.empty = function() {
-	    return !this.node();
-	  };
-	  d3_selectionPrototype.node = function() {
-	    for (var j = 0, m = this.length; j < m; j++) {
-	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-	        var node = group[i];
-	        if (node) return node;
-	      }
-	    }
-	    return null;
-	  };
-	  d3_selectionPrototype.size = function() {
-	    var n = 0;
-	    d3_selection_each(this, function() {
-	      ++n;
-	    });
-	    return n;
-	  };
-	  function d3_selection_enter(selection) {
-	    d3_subclass(selection, d3_selection_enterPrototype);
-	    return selection;
-	  }
-	  var d3_selection_enterPrototype = [];
-	  d3.selection.enter = d3_selection_enter;
-	  d3.selection.enter.prototype = d3_selection_enterPrototype;
-	  d3_selection_enterPrototype.append = d3_selectionPrototype.append;
-	  d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
-	  d3_selection_enterPrototype.node = d3_selectionPrototype.node;
-	  d3_selection_enterPrototype.call = d3_selectionPrototype.call;
-	  d3_selection_enterPrototype.size = d3_selectionPrototype.size;
-	  d3_selection_enterPrototype.select = function(selector) {
-	    var subgroups = [], subgroup, subnode, upgroup, group, node;
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      upgroup = (group = this[j]).update;
-	      subgroups.push(subgroup = []);
-	      subgroup.parentNode = group.parentNode;
-	      for (var i = -1, n = group.length; ++i < n; ) {
-	        if (node = group[i]) {
-	          subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));
-	          subnode.__data__ = node.__data__;
-	        } else {
-	          subgroup.push(null);
-	        }
-	      }
-	    }
-	    return d3_selection(subgroups);
-	  };
-	  d3_selection_enterPrototype.insert = function(name, before) {
-	    if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);
-	    return d3_selectionPrototype.insert.call(this, name, before);
-	  };
-	  function d3_selection_enterInsertBefore(enter) {
-	    var i0, j0;
-	    return function(d, i, j) {
-	      var group = enter[j].update, n = group.length, node;
-	      if (j != j0) j0 = j, i0 = 0;
-	      if (i >= i0) i0 = i + 1;
-	      while (!(node = group[i0]) && ++i0 < n) ;
-	      return node;
-	    };
-	  }
-	  d3.select = function(node) {
-	    var group;
-	    if (typeof node === "string") {
-	      group = [ d3_select(node, d3_document) ];
-	      group.parentNode = d3_document.documentElement;
-	    } else {
-	      group = [ node ];
-	      group.parentNode = d3_documentElement(node);
-	    }
-	    return d3_selection([ group ]);
-	  };
-	  d3.selectAll = function(nodes) {
-	    var group;
-	    if (typeof nodes === "string") {
-	      group = d3_array(d3_selectAll(nodes, d3_document));
-	      group.parentNode = d3_document.documentElement;
-	    } else {
-	      group = d3_array(nodes);
-	      group.parentNode = null;
-	    }
-	    return d3_selection([ group ]);
-	  };
-	  d3_selectionPrototype.on = function(type, listener, capture) {
-	    var n = arguments.length;
-	    if (n < 3) {
-	      if (typeof type !== "string") {
-	        if (n < 2) listener = false;
-	        for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
-	        return this;
-	      }
-	      if (n < 2) return (n = this.node()["__on" + type]) && n._;
-	      capture = false;
-	    }
-	    return this.each(d3_selection_on(type, listener, capture));
-	  };
-	  function d3_selection_on(type, listener, capture) {
-	    var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
-	    if (i > 0) type = type.slice(0, i);
-	    var filter = d3_selection_onFilters.get(type);
-	    if (filter) type = filter, wrap = d3_selection_onFilter;
-	    function onRemove() {
-	      var l = this[name];
-	      if (l) {
-	        this.removeEventListener(type, l, l.$);
-	        delete this[name];
-	      }
-	    }
-	    function onAdd() {
-	      var l = wrap(listener, d3_array(arguments));
-	      onRemove.call(this);
-	      this.addEventListener(type, this[name] = l, l.$ = capture);
-	      l._ = listener;
-	    }
-	    function removeAll() {
-	      var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
-	      for (var name in this) {
-	        if (match = name.match(re)) {
-	          var l = this[name];
-	          this.removeEventListener(match[1], l, l.$);
-	          delete this[name];
-	        }
-	      }
-	    }
-	    return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
-	  }
-	  var d3_selection_onFilters = d3.map({
-	    mouseenter: "mouseover",
-	    mouseleave: "mouseout"
-	  });
-	  if (d3_document) {
-	    d3_selection_onFilters.forEach(function(k) {
-	      if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
-	    });
-	  }
-	  function d3_selection_onListener(listener, argumentz) {
-	    return function(e) {
-	      var o = d3.event;
-	      d3.event = e;
-	      argumentz[0] = this.__data__;
-	      try {
-	        listener.apply(this, argumentz);
-	      } finally {
-	        d3.event = o;
-	      }
-	    };
-	  }
-	  function d3_selection_onFilter(listener, argumentz) {
-	    var l = d3_selection_onListener(listener, argumentz);
-	    return function(e) {
-	      var target = this, related = e.relatedTarget;
-	      if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
-	        l.call(target, e);
-	      }
-	    };
-	  }
-	  var d3_event_dragSelect, d3_event_dragId = 0;
-	  function d3_event_dragSuppress(node) {
-	    var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window(node)).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
-	    if (d3_event_dragSelect == null) {
-	      d3_event_dragSelect = "onselectstart" in node ? false : d3_vendorSymbol(node.style, "userSelect");
-	    }
-	    if (d3_event_dragSelect) {
-	      var style = d3_documentElement(node).style, select = style[d3_event_dragSelect];
-	      style[d3_event_dragSelect] = "none";
-	    }
-	    return function(suppressClick) {
-	      w.on(name, null);
-	      if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
-	      if (suppressClick) {
-	        var off = function() {
-	          w.on(click, null);
-	        };
-	        w.on(click, function() {
-	          d3_eventPreventDefault();
-	          off();
-	        }, true);
-	        setTimeout(off, 0);
-	      }
-	    };
-	  }
-	  d3.mouse = function(container) {
-	    return d3_mousePoint(container, d3_eventSource());
-	  };
-	  var d3_mouse_bug44083 = this.navigator && /WebKit/.test(this.navigator.userAgent) ? -1 : 0;
-	  function d3_mousePoint(container, e) {
-	    if (e.changedTouches) e = e.changedTouches[0];
-	    var svg = container.ownerSVGElement || container;
-	    if (svg.createSVGPoint) {
-	      var point = svg.createSVGPoint();
-	      if (d3_mouse_bug44083 < 0) {
-	        var window = d3_window(container);
-	        if (window.scrollX || window.scrollY) {
-	          svg = d3.select("body").append("svg").style({
-	            position: "absolute",
-	            top: 0,
-	            left: 0,
-	            margin: 0,
-	            padding: 0,
-	            border: "none"
-	          }, "important");
-	          var ctm = svg[0][0].getScreenCTM();
-	          d3_mouse_bug44083 = !(ctm.f || ctm.e);
-	          svg.remove();
-	        }
-	      }
-	      if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX, 
-	      point.y = e.clientY;
-	      point = point.matrixTransform(container.getScreenCTM().inverse());
-	      return [ point.x, point.y ];
-	    }
-	    var rect = container.getBoundingClientRect();
-	    return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
-	  }
-	  d3.touch = function(container, touches, identifier) {
-	    if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;
-	    if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {
-	      if ((touch = touches[i]).identifier === identifier) {
-	        return d3_mousePoint(container, touch);
-	      }
-	    }
-	  };
-	  d3.behavior.drag = function() {
-	    var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_window, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_identity, "touchmove", "touchend");
-	    function drag() {
-	      this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
-	    }
-	    function dragstart(id, position, subject, move, end) {
-	      return function() {
-	        var that = this, target = d3.event.target.correspondingElement || d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject(target)).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(target), position0 = position(parent, dragId);
-	        if (origin) {
-	          dragOffset = origin.apply(that, arguments);
-	          dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];
-	        } else {
-	          dragOffset = [ 0, 0 ];
-	        }
-	        dispatch({
-	          type: "dragstart"
-	        });
-	        function moved() {
-	          var position1 = position(parent, dragId), dx, dy;
-	          if (!position1) return;
-	          dx = position1[0] - position0[0];
-	          dy = position1[1] - position0[1];
-	          dragged |= dx | dy;
-	          position0 = position1;
-	          dispatch({
-	            type: "drag",
-	            x: position1[0] + dragOffset[0],
-	            y: position1[1] + dragOffset[1],
-	            dx: dx,
-	            dy: dy
-	          });
-	        }
-	        function ended() {
-	          if (!position(parent, dragId)) return;
-	          dragSubject.on(move + dragName, null).on(end + dragName, null);
-	          dragRestore(dragged);
-	          dispatch({
-	            type: "dragend"
-	          });
-	        }
-	      };
-	    }
-	    drag.origin = function(x) {
-	      if (!arguments.length) return origin;
-	      origin = x;
-	      return drag;
-	    };
-	    return d3.rebind(drag, event, "on");
-	  };
-	  function d3_behavior_dragTouchId() {
-	    return d3.event.changedTouches[0].identifier;
-	  }
-	  d3.touches = function(container, touches) {
-	    if (arguments.length < 2) touches = d3_eventSource().touches;
-	    return touches ? d3_array(touches).map(function(touch) {
-	      var point = d3_mousePoint(container, touch);
-	      point.identifier = touch.identifier;
-	      return point;
-	    }) : [];
-	  };
-	  var ε = 1e-6, ε2 = ε * ε, π = Math.PI, τ = 2 * π, τε = τ - ε, halfπ = π / 2, d3_radians = π / 180, d3_degrees = 180 / π;
-	  function d3_sgn(x) {
-	    return x > 0 ? 1 : x < 0 ? -1 : 0;
-	  }
-	  function d3_cross2d(a, b, c) {
-	    return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
-	  }
-	  function d3_acos(x) {
-	    return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
-	  }
-	  function d3_asin(x) {
-	    return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
-	  }
-	  function d3_sinh(x) {
-	    return ((x = Math.exp(x)) - 1 / x) / 2;
-	  }
-	  function d3_cosh(x) {
-	    return ((x = Math.exp(x)) + 1 / x) / 2;
-	  }
-	  function d3_tanh(x) {
-	    return ((x = Math.exp(2 * x)) - 1) / (x + 1);
-	  }
-	  function d3_haversin(x) {
-	    return (x = Math.sin(x / 2)) * x;
-	  }
-	  var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;
-	  d3.interpolateZoom = function(p0, p1) {
-	    var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2], dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, i, S;
-	    if (d2 < ε2) {
-	      S = Math.log(w1 / w0) / ρ;
-	      i = function(t) {
-	        return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * t * S) ];
-	      };
-	    } else {
-	      var d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1);
-	      S = (r1 - r0) / ρ;
-	      i = function(t) {
-	        var s = t * S, coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));
-	        return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];
-	      };
-	    }
-	    i.duration = S * 1e3;
-	    return i;
-	  };
-	  d3.behavior.zoom = function() {
-	    var view = {
-	      x: 0,
-	      y: 0,
-	      k: 1
-	    }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, duration = 250, zooming = 0, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1;
-	    if (!d3_behavior_zoomWheel) {
-	      d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
-	        return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
-	      }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
-	        return d3.event.wheelDelta;
-	      }, "mousewheel") : (d3_behavior_zoomDelta = function() {
-	        return -d3.event.detail;
-	      }, "MozMousePixelScroll");
-	    }
-	    function zoom(g) {
-	      g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
-	    }
-	    zoom.event = function(g) {
-	      g.each(function() {
-	        var dispatch = event.of(this, arguments), view1 = view;
-	        if (d3_transitionInheritId) {
-	          d3.select(this).transition().each("start.zoom", function() {
-	            view = this.__chart__ || {
-	              x: 0,
-	              y: 0,
-	              k: 1
-	            };
-	            zoomstarted(dispatch);
-	          }).tween("zoom:zoom", function() {
-	            var dx = size[0], dy = size[1], cx = center0 ? center0[0] : dx / 2, cy = center0 ? center0[1] : dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);
-	            return function(t) {
-	              var l = i(t), k = dx / l[2];
-	              this.__chart__ = view = {
-	                x: cx - l[0] * k,
-	                y: cy - l[1] * k,
-	                k: k
-	              };
-	              zoomed(dispatch);
-	            };
-	          }).each("interrupt.zoom", function() {
-	            zoomended(dispatch);
-	          }).each("end.zoom", function() {
-	            zoomended(dispatch);
-	          });
-	        } else {
-	          this.__chart__ = view;
-	          zoomstarted(dispatch);
-	          zoomed(dispatch);
-	          zoomended(dispatch);
-	        }
-	      });
-	    };
-	    zoom.translate = function(_) {
-	      if (!arguments.length) return [ view.x, view.y ];
-	      view = {
-	        x: +_[0],
-	        y: +_[1],
-	        k: view.k
-	      };
-	      rescale();
-	      return zoom;
-	    };
-	    zoom.scale = function(_) {
-	      if (!arguments.length) return view.k;
-	      view = {
-	        x: view.x,
-	        y: view.y,
-	        k: null
-	      };
-	      scaleTo(+_);
-	      rescale();
-	      return zoom;
-	    };
-	    zoom.scaleExtent = function(_) {
-	      if (!arguments.length) return scaleExtent;
-	      scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
-	      return zoom;
-	    };
-	    zoom.center = function(_) {
-	      if (!arguments.length) return center;
-	      center = _ && [ +_[0], +_[1] ];
-	      return zoom;
-	    };
-	    zoom.size = function(_) {
-	      if (!arguments.length) return size;
-	      size = _ && [ +_[0], +_[1] ];
-	      return zoom;
-	    };
-	    zoom.duration = function(_) {
-	      if (!arguments.length) return duration;
-	      duration = +_;
-	      return zoom;
-	    };
-	    zoom.x = function(z) {
-	      if (!arguments.length) return x1;
-	      x1 = z;
-	      x0 = z.copy();
-	      view = {
-	        x: 0,
-	        y: 0,
-	        k: 1
-	      };
-	      return zoom;
-	    };
-	    zoom.y = function(z) {
-	      if (!arguments.length) return y1;
-	      y1 = z;
-	      y0 = z.copy();
-	      view = {
-	        x: 0,
-	        y: 0,
-	        k: 1
-	      };
-	      return zoom;
-	    };
-	    function location(p) {
-	      return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];
-	    }
-	    function point(l) {
-	      return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];
-	    }
-	    function scaleTo(s) {
-	      view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
-	    }
-	    function translateTo(p, l) {
-	      l = point(l);
-	      view.x += p[0] - l[0];
-	      view.y += p[1] - l[1];
-	    }
-	    function zoomTo(that, p, l, k) {
-	      that.__chart__ = {
-	        x: view.x,
-	        y: view.y,
-	        k: view.k
-	      };
-	      scaleTo(Math.pow(2, k));
-	      translateTo(center0 = p, l);
-	      that = d3.select(that);
-	      if (duration > 0) that = that.transition().duration(duration);
-	      that.call(zoom.event);
-	    }
-	    function rescale() {
-	      if (x1) x1.domain(x0.range().map(function(x) {
-	        return (x - view.x) / view.k;
-	      }).map(x0.invert));
-	      if (y1) y1.domain(y0.range().map(function(y) {
-	        return (y - view.y) / view.k;
-	      }).map(y0.invert));
-	    }
-	    function zoomstarted(dispatch) {
-	      if (!zooming++) dispatch({
-	        type: "zoomstart"
-	      });
-	    }
-	    function zoomed(dispatch) {
-	      rescale();
-	      dispatch({
-	        type: "zoom",
-	        scale: view.k,
-	        translate: [ view.x, view.y ]
-	      });
-	    }
-	    function zoomended(dispatch) {
-	      if (!--zooming) dispatch({
-	        type: "zoomend"
-	      }), center0 = null;
-	    }
-	    function mousedowned() {
-	      var that = this, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window(that)).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress(that);
-	      d3_selection_interrupt.call(that);
-	      zoomstarted(dispatch);
-	      function moved() {
-	        dragged = 1;
-	        translateTo(d3.mouse(that), location0);
-	        zoomed(dispatch);
-	      }
-	      function ended() {
-	        subject.on(mousemove, null).on(mouseup, null);
-	        dragRestore(dragged);
-	        zoomended(dispatch);
-	      }
-	    }
-	    function touchstarted() {
-	      var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that), dragRestore = d3_event_dragSuppress(that);
-	      started();
-	      zoomstarted(dispatch);
-	      subject.on(mousedown, null).on(touchstart, started);
-	      function relocate() {
-	        var touches = d3.touches(that);
-	        scale0 = view.k;
-	        touches.forEach(function(t) {
-	          if (t.identifier in locations0) locations0[t.identifier] = location(t);
-	        });
-	        return touches;
-	      }
-	      function started() {
-	        var target = d3.event.target;
-	        d3.select(target).on(touchmove, moved).on(touchend, ended);
-	        targets.push(target);
-	        var changed = d3.event.changedTouches;
-	        for (var i = 0, n = changed.length; i < n; ++i) {
-	          locations0[changed[i].identifier] = null;
-	        }
-	        var touches = relocate(), now = Date.now();
-	        if (touches.length === 1) {
-	          if (now - touchtime < 500) {
-	            var p = touches[0];
-	            zoomTo(that, p, locations0[p.identifier], Math.floor(Math.log(view.k) / Math.LN2) + 1);
-	            d3_eventPreventDefault();
-	          }
-	          touchtime = now;
-	        } else if (touches.length > 1) {
-	          var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];
-	          distance0 = dx * dx + dy * dy;
-	        }
-	      }
-	      function moved() {
-	        var touches = d3.touches(that), p0, l0, p1, l1;
-	        d3_selection_interrupt.call(that);
-	        for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {
-	          p1 = touches[i];
-	          if (l1 = locations0[p1.identifier]) {
-	            if (l0) break;
-	            p0 = p1, l0 = l1;
-	          }
-	        }
-	        if (l1) {
-	          var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);
-	          p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
-	          l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
-	          scaleTo(scale1 * scale0);
-	        }
-	        touchtime = null;
-	        translateTo(p0, l0);
-	        zoomed(dispatch);
-	      }
-	      function ended() {
-	        if (d3.event.touches.length) {
-	          var changed = d3.event.changedTouches;
-	          for (var i = 0, n = changed.length; i < n; ++i) {
-	            delete locations0[changed[i].identifier];
-	          }
-	          for (var identifier in locations0) {
-	            return void relocate();
-	          }
-	        }
-	        d3.selectAll(targets).on(zoomName, null);
-	        subject.on(mousedown, mousedowned).on(touchstart, touchstarted);
-	        dragRestore();
-	        zoomended(dispatch);
-	      }
-	    }
-	    function mousewheeled() {
-	      var dispatch = event.of(this, arguments);
-	      if (mousewheelTimer) clearTimeout(mousewheelTimer); else d3_selection_interrupt.call(this), 
-	      translate0 = location(center0 = center || d3.mouse(this)), zoomstarted(dispatch);
-	      mousewheelTimer = setTimeout(function() {
-	        mousewheelTimer = null;
-	        zoomended(dispatch);
-	      }, 50);
-	      d3_eventPreventDefault();
-	      scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
-	      translateTo(center0, translate0);
-	      zoomed(dispatch);
-	    }
-	    function dblclicked() {
-	      var p = d3.mouse(this), k = Math.log(view.k) / Math.LN2;
-	      zoomTo(this, p, location(p), d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1);
-	    }
-	    return d3.rebind(zoom, event, "on");
-	  };
-	  var d3_behavior_zoomInfinity = [ 0, Infinity ], d3_behavior_zoomDelta, d3_behavior_zoomWheel;
-	  d3.color = d3_color;
-	  function d3_color() {}
-	  d3_color.prototype.toString = function() {
-	    return this.rgb() + "";
-	  };
-	  d3.hsl = d3_hsl;
-	  function d3_hsl(h, s, l) {
-	    return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);
-	  }
-	  var d3_hslPrototype = d3_hsl.prototype = new d3_color();
-	  d3_hslPrototype.brighter = function(k) {
-	    k = Math.pow(.7, arguments.length ? k : 1);
-	    return new d3_hsl(this.h, this.s, this.l / k);
-	  };
-	  d3_hslPrototype.darker = function(k) {
-	    k = Math.pow(.7, arguments.length ? k : 1);
-	    return new d3_hsl(this.h, this.s, k * this.l);
-	  };
-	  d3_hslPrototype.rgb = function() {
-	    return d3_hsl_rgb(this.h, this.s, this.l);
-	  };
-	  function d3_hsl_rgb(h, s, l) {
-	    var m1, m2;
-	    h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;
-	    s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;
-	    l = l < 0 ? 0 : l > 1 ? 1 : l;
-	    m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
-	    m1 = 2 * l - m2;
-	    function v(h) {
-	      if (h > 360) h -= 360; else if (h < 0) h += 360;
-	      if (h < 60) return m1 + (m2 - m1) * h / 60;
-	      if (h < 180) return m2;
-	      if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
-	      return m1;
-	    }
-	    function vv(h) {
-	      return Math.round(v(h) * 255);
-	    }
-	    return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));
-	  }
-	  d3.hcl = d3_hcl;
-	  function d3_hcl(h, c, l) {
-	    return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);
-	  }
-	  var d3_hclPrototype = d3_hcl.prototype = new d3_color();
-	  d3_hclPrototype.brighter = function(k) {
-	    return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
-	  };
-	  d3_hclPrototype.darker = function(k) {
-	    return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
-	  };
-	  d3_hclPrototype.rgb = function() {
-	    return d3_hcl_lab(this.h, this.c, this.l).rgb();
-	  };
-	  function d3_hcl_lab(h, c, l) {
-	    if (isNaN(h)) h = 0;
-	    if (isNaN(c)) c = 0;
-	    return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
-	  }
-	  d3.lab = d3_lab;
-	  function d3_lab(l, a, b) {
-	    return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.h, l.c, l.l) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);
-	  }
-	  var d3_lab_K = 18;
-	  var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
-	  var d3_labPrototype = d3_lab.prototype = new d3_color();
-	  d3_labPrototype.brighter = function(k) {
-	    return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
-	  };
-	  d3_labPrototype.darker = function(k) {
-	    return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
-	  };
-	  d3_labPrototype.rgb = function() {
-	    return d3_lab_rgb(this.l, this.a, this.b);
-	  };
-	  function d3_lab_rgb(l, a, b) {
-	    var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
-	    x = d3_lab_xyz(x) * d3_lab_X;
-	    y = d3_lab_xyz(y) * d3_lab_Y;
-	    z = d3_lab_xyz(z) * d3_lab_Z;
-	    return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
-	  }
-	  function d3_lab_hcl(l, a, b) {
-	    return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);
-	  }
-	  function d3_lab_xyz(x) {
-	    return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
-	  }
-	  function d3_xyz_lab(x) {
-	    return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
-	  }
-	  function d3_xyz_rgb(r) {
-	    return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
-	  }
-	  d3.rgb = d3_rgb;
-	  function d3_rgb(r, g, b) {
-	    return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);
-	  }
-	  function d3_rgbNumber(value) {
-	    return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);
-	  }
-	  function d3_rgbString(value) {
-	    return d3_rgbNumber(value) + "";
-	  }
-	  var d3_rgbPrototype = d3_rgb.prototype = new d3_color();
-	  d3_rgbPrototype.brighter = function(k) {
-	    k = Math.pow(.7, arguments.length ? k : 1);
-	    var r = this.r, g = this.g, b = this.b, i = 30;
-	    if (!r && !g && !b) return new d3_rgb(i, i, i);
-	    if (r && r < i) r = i;
-	    if (g && g < i) g = i;
-	    if (b && b < i) b = i;
-	    return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));
-	  };
-	  d3_rgbPrototype.darker = function(k) {
-	    k = Math.pow(.7, arguments.length ? k : 1);
-	    return new d3_rgb(k * this.r, k * this.g, k * this.b);
-	  };
-	  d3_rgbPrototype.hsl = function() {
-	    return d3_rgb_hsl(this.r, this.g, this.b);
-	  };
-	  d3_rgbPrototype.toString = function() {
-	    return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
-	  };
-	  function d3_rgb_hex(v) {
-	    return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
-	  }
-	  function d3_rgb_parse(format, rgb, hsl) {
-	    var r = 0, g = 0, b = 0, m1, m2, color;
-	    m1 = /([a-z]+)\((.*)\)/.exec(format = format.toLowerCase());
-	    if (m1) {
-	      m2 = m1[2].split(",");
-	      switch (m1[1]) {
-	       case "hsl":
-	        {
-	          return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
-	        }
-
-	       case "rgb":
-	        {
-	          return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
-	        }
-	      }
-	    }
-	    if (color = d3_rgb_names.get(format)) {
-	      return rgb(color.r, color.g, color.b);
-	    }
-	    if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.slice(1), 16))) {
-	      if (format.length === 4) {
-	        r = (color & 3840) >> 4;
-	        r = r >> 4 | r;
-	        g = color & 240;
-	        g = g >> 4 | g;
-	        b = color & 15;
-	        b = b << 4 | b;
-	      } else if (format.length === 7) {
-	        r = (color & 16711680) >> 16;
-	        g = (color & 65280) >> 8;
-	        b = color & 255;
-	      }
-	    }
-	    return rgb(r, g, b);
-	  }
-	  function d3_rgb_hsl(r, g, b) {
-	    var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;
-	    if (d) {
-	      s = l < .5 ? d / (max + min) : d / (2 - max - min);
-	      if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;
-	      h *= 60;
-	    } else {
-	      h = NaN;
-	      s = l > 0 && l < 1 ? 0 : h;
-	    }
-	    return new d3_hsl(h, s, l);
-	  }
-	  function d3_rgb_lab(r, g, b) {
-	    r = d3_rgb_xyz(r);
-	    g = d3_rgb_xyz(g);
-	    b = d3_rgb_xyz(b);
-	    var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);
-	    return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));
-	  }
-	  function d3_rgb_xyz(r) {
-	    return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);
-	  }
-	  function d3_rgb_parseNumber(c) {
-	    var f = parseFloat(c);
-	    return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
-	  }
-	  var d3_rgb_names = d3.map({
-	    aliceblue: 15792383,
-	    antiquewhite: 16444375,
-	    aqua: 65535,
-	    aquamarine: 8388564,
-	    azure: 15794175,
-	    beige: 16119260,
-	    bisque: 16770244,
-	    black: 0,
-	    blanchedalmond: 16772045,
-	    blue: 255,
-	    blueviolet: 9055202,
-	    brown: 10824234,
-	    burlywood: 14596231,
-	    cadetblue: 6266528,
-	    chartreuse: 8388352,
-	    chocolate: 13789470,
-	    coral: 16744272,
-	    cornflowerblue: 6591981,
-	    cornsilk: 16775388,
-	    crimson: 14423100,
-	    cyan: 65535,
-	    darkblue: 139,
-	    darkcyan: 35723,
-	    darkgoldenrod: 12092939,
-	    darkgray: 11119017,
-	    darkgreen: 25600,
-	    darkgrey: 11119017,
-	    darkkhaki: 12433259,
-	    darkmagenta: 9109643,
-	    darkolivegreen: 5597999,
-	    darkorange: 16747520,
-	    darkorchid: 10040012,
-	    darkred: 9109504,
-	    darksalmon: 15308410,
-	    darkseagreen: 9419919,
-	    darkslateblue: 4734347,
-	    darkslategray: 3100495,
-	    darkslategrey: 3100495,
-	    darkturquoise: 52945,
-	    darkviolet: 9699539,
-	    deeppink: 16716947,
-	    deepskyblue: 49151,
-	    dimgray: 6908265,
-	    dimgrey: 6908265,
-	    dodgerblue: 2003199,
-	    firebrick: 11674146,
-	    floralwhite: 16775920,
-	    forestgreen: 2263842,
-	    fuchsia: 16711935,
-	    gainsboro: 14474460,
-	    ghostwhite: 16316671,
-	    gold: 16766720,
-	    goldenrod: 14329120,
-	    gray: 8421504,
-	    green: 32768,
-	    greenyellow: 11403055,
-	    grey: 8421504,
-	    honeydew: 15794160,
-	    hotpink: 16738740,
-	    indianred: 13458524,
-	    indigo: 4915330,
-	    ivory: 16777200,
-	    khaki: 15787660,
-	    lavender: 15132410,
-	    lavenderblush: 16773365,
-	    lawngreen: 8190976,
-	    lemonchiffon: 16775885,
-	    lightblue: 11393254,
-	    lightcoral: 15761536,
-	    lightcyan: 14745599,
-	    lightgoldenrodyellow: 16448210,
-	    lightgray: 13882323,
-	    lightgreen: 9498256,
-	    lightgrey: 13882323,
-	    lightpink: 16758465,
-	    lightsalmon: 16752762,
-	    lightseagreen: 2142890,
-	    lightskyblue: 8900346,
-	    lightslategray: 7833753,
-	    lightslategrey: 7833753,
-	    lightsteelblue: 11584734,
-	    lightyellow: 16777184,
-	    lime: 65280,
-	    limegreen: 3329330,
-	    linen: 16445670,
-	    magenta: 16711935,
-	    maroon: 8388608,
-	    mediumaquamarine: 6737322,
-	    mediumblue: 205,
-	    mediumorchid: 12211667,
-	    mediumpurple: 9662683,
-	    mediumseagreen: 3978097,
-	    mediumslateblue: 8087790,
-	    mediumspringgreen: 64154,
-	    mediumturquoise: 4772300,
-	    mediumvioletred: 13047173,
-	    midnightblue: 1644912,
-	    mintcream: 16121850,
-	    mistyrose: 16770273,
-	    moccasin: 16770229,
-	    navajowhite: 16768685,
-	    navy: 128,
-	    oldlace: 16643558,
-	    olive: 8421376,
-	    olivedrab: 7048739,
-	    orange: 16753920,
-	    orangered: 16729344,
-	    orchid: 14315734,
-	    palegoldenrod: 15657130,
-	    palegreen: 10025880,
-	    paleturquoise: 11529966,
-	    palevioletred: 14381203,
-	    papayawhip: 16773077,
-	    peachpuff: 16767673,
-	    peru: 13468991,
-	    pink: 16761035,
-	    plum: 14524637,
-	    powderblue: 11591910,
-	    purple: 8388736,
-	    rebeccapurple: 6697881,
-	    red: 16711680,
-	    rosybrown: 12357519,
-	    royalblue: 4286945,
-	    saddlebrown: 9127187,
-	    salmon: 16416882,
-	    sandybrown: 16032864,
-	    seagreen: 3050327,
-	    seashell: 16774638,
-	    sienna: 10506797,
-	    silver: 12632256,
-	    skyblue: 8900331,
-	    slateblue: 6970061,
-	    slategray: 7372944,
-	    slategrey: 7372944,
-	    snow: 16775930,
-	    springgreen: 65407,
-	    steelblue: 4620980,
-	    tan: 13808780,
-	    teal: 32896,
-	    thistle: 14204888,
-	    tomato: 16737095,
-	    turquoise: 4251856,
-	    violet: 15631086,
-	    wheat: 16113331,
-	    white: 16777215,
-	    whitesmoke: 16119285,
-	    yellow: 16776960,
-	    yellowgreen: 10145074
-	  });
-	  d3_rgb_names.forEach(function(key, value) {
-	    d3_rgb_names.set(key, d3_rgbNumber(value));
-	  });
-	  function d3_functor(v) {
-	    return typeof v === "function" ? v : function() {
-	      return v;
-	    };
-	  }
-	  d3.functor = d3_functor;
-	  d3.xhr = d3_xhrType(d3_identity);
-	  function d3_xhrType(response) {
-	    return function(url, mimeType, callback) {
-	      if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType, 
-	      mimeType = null;
-	      return d3_xhr(url, mimeType, response, callback);
-	    };
-	  }
-	  function d3_xhr(url, mimeType, response, callback) {
-	    var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null;
-	    if (this.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest();
-	    "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
-	      request.readyState > 3 && respond();
-	    };
-	    function respond() {
-	      var status = request.status, result;
-	      if (!status && d3_xhrHasResponse(request) || status >= 200 && status < 300 || status === 304) {
-	        try {
-	          result = response.call(xhr, request);
-	        } catch (e) {
-	          dispatch.error.call(xhr, e);
-	          return;
-	        }
-	        dispatch.load.call(xhr, result);
-	      } else {
-	        dispatch.error.call(xhr, request);
-	      }
-	    }
-	    request.onprogress = function(event) {
-	      var o = d3.event;
-	      d3.event = event;
-	      try {
-	        dispatch.progress.call(xhr, request);
-	      } finally {
-	        d3.event = o;
-	      }
-	    };
-	    xhr.header = function(name, value) {
-	      name = (name + "").toLowerCase();
-	      if (arguments.length < 2) return headers[name];
-	      if (value == null) delete headers[name]; else headers[name] = value + "";
-	      return xhr;
-	    };
-	    xhr.mimeType = function(value) {
-	      if (!arguments.length) return mimeType;
-	      mimeType = value == null ? null : value + "";
-	      return xhr;
-	    };
-	    xhr.responseType = function(value) {
-	      if (!arguments.length) return responseType;
-	      responseType = value;
-	      return xhr;
-	    };
-	    xhr.response = function(value) {
-	      response = value;
-	      return xhr;
-	    };
-	    [ "get", "post" ].forEach(function(method) {
-	      xhr[method] = function() {
-	        return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
-	      };
-	    });
-	    xhr.send = function(method, data, callback) {
-	      if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
-	      request.open(method, url, true);
-	      if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
-	      if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
-	      if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
-	      if (responseType != null) request.responseType = responseType;
-	      if (callback != null) xhr.on("error", callback).on("load", function(request) {
-	        callback(null, request);
-	      });
-	      dispatch.beforesend.call(xhr, request);
-	      request.send(data == null ? null : data);
-	      return xhr;
-	    };
-	    xhr.abort = function() {
-	      request.abort();
-	      return xhr;
-	    };
-	    d3.rebind(xhr, dispatch, "on");
-	    return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
-	  }
-	  function d3_xhr_fixCallback(callback) {
-	    return callback.length === 1 ? function(error, request) {
-	      callback(error == null ? request : null);
-	    } : callback;
-	  }
-	  function d3_xhrHasResponse(request) {
-	    var type = request.responseType;
-	    return type && type !== "text" ? request.response : request.responseText;
-	  }
-	  d3.dsv = function(delimiter, mimeType) {
-	    var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
-	    function dsv(url, row, callback) {
-	      if (arguments.length < 3) callback = row, row = null;
-	      var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);
-	      xhr.row = function(_) {
-	        return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
-	      };
-	      return xhr;
-	    }
-	    function response(request) {
-	      return dsv.parse(request.responseText);
-	    }
-	    function typedResponse(f) {
-	      return function(request) {
-	        return dsv.parse(request.responseText, f);
-	      };
-	    }
-	    dsv.parse = function(text, f) {
-	      var o;
-	      return dsv.parseRows(text, function(row, i) {
-	        if (o) return o(row, i - 1);
-	        var a = new Function("d", "return {" + row.map(function(name, i) {
-	          return JSON.stringify(name) + ": d[" + i + "]";
-	        }).join(",") + "}");
-	        o = f ? function(row, i) {
-	          return f(a(row), i);
-	        } : a;
-	      });
-	    };
-	    dsv.parseRows = function(text, f) {
-	      var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
-	      function token() {
-	        if (I >= N) return EOF;
-	        if (eol) return eol = false, EOL;
-	        var j = I;
-	        if (text.charCodeAt(j) === 34) {
-	          var i = j;
-	          while (i++ < N) {
-	            if (text.charCodeAt(i) === 34) {
-	              if (text.charCodeAt(i + 1) !== 34) break;
-	              ++i;
-	            }
-	          }
-	          I = i + 2;
-	          var c = text.charCodeAt(i + 1);
-	          if (c === 13) {
-	            eol = true;
-	            if (text.charCodeAt(i + 2) === 10) ++I;
-	          } else if (c === 10) {
-	            eol = true;
-	          }
-	          return text.slice(j + 1, i).replace(/""/g, '"');
-	        }
-	        while (I < N) {
-	          var c = text.charCodeAt(I++), k = 1;
-	          if (c === 10) eol = true; else if (c === 13) {
-	            eol = true;
-	            if (text.charCodeAt(I) === 10) ++I, ++k;
-	          } else if (c !== delimiterCode) continue;
-	          return text.slice(j, I - k);
-	        }
-	        return text.slice(j);
-	      }
-	      while ((t = token()) !== EOF) {
-	        var a = [];
-	        while (t !== EOL && t !== EOF) {
-	          a.push(t);
-	          t = token();
-	        }
-	        if (f && (a = f(a, n++)) == null) continue;
-	        rows.push(a);
-	      }
-	      return rows;
-	    };
-	    dsv.format = function(rows) {
-	      if (Array.isArray(rows[0])) return dsv.formatRows(rows);
-	      var fieldSet = new d3_Set(), fields = [];
-	      rows.forEach(function(row) {
-	        for (var field in row) {
-	          if (!fieldSet.has(field)) {
-	            fields.push(fieldSet.add(field));
-	          }
-	        }
-	      });
-	      return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
-	        return fields.map(function(field) {
-	          return formatValue(row[field]);
-	        }).join(delimiter);
-	      })).join("\n");
-	    };
-	    dsv.formatRows = function(rows) {
-	      return rows.map(formatRow).join("\n");
-	    };
-	    function formatRow(row) {
-	      return row.map(formatValue).join(delimiter);
-	    }
-	    function formatValue(text) {
-	      return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
-	    }
-	    return dsv;
-	  };
-	  d3.csv = d3.dsv(",", "text/csv");
-	  d3.tsv = d3.dsv("	", "text/tab-separated-values");
-	  var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_frame = this[d3_vendorSymbol(this, "requestAnimationFrame")] || function(callback) {
-	    setTimeout(callback, 17);
-	  };
-	  d3.timer = function() {
-	    d3_timer.apply(this, arguments);
-	  };
-	  function d3_timer(callback, delay, then) {
-	    var n = arguments.length;
-	    if (n < 2) delay = 0;
-	    if (n < 3) then = Date.now();
-	    var time = then + delay, timer = {
-	      c: callback,
-	      t: time,
-	      n: null
-	    };
-	    if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;
-	    d3_timer_queueTail = timer;
-	    if (!d3_timer_interval) {
-	      d3_timer_timeout = clearTimeout(d3_timer_timeout);
-	      d3_timer_interval = 1;
-	      d3_timer_frame(d3_timer_step);
-	    }
-	    return timer;
-	  }
-	  function d3_timer_step() {
-	    var now = d3_timer_mark(), delay = d3_timer_sweep() - now;
-	    if (delay > 24) {
-	      if (isFinite(delay)) {
-	        clearTimeout(d3_timer_timeout);
-	        d3_timer_timeout = setTimeout(d3_timer_step, delay);
-	      }
-	      d3_timer_interval = 0;
-	    } else {
-	      d3_timer_interval = 1;
-	      d3_timer_frame(d3_timer_step);
-	    }
-	  }
-	  d3.timer.flush = function() {
-	    d3_timer_mark();
-	    d3_timer_sweep();
-	  };
-	  function d3_timer_mark() {
-	    var now = Date.now(), timer = d3_timer_queueHead;
-	    while (timer) {
-	      if (now >= timer.t && timer.c(now - timer.t)) timer.c = null;
-	      timer = timer.n;
-	    }
-	    return now;
-	  }
-	  function d3_timer_sweep() {
-	    var t0, t1 = d3_timer_queueHead, time = Infinity;
-	    while (t1) {
-	      if (t1.c) {
-	        if (t1.t < time) time = t1.t;
-	        t1 = (t0 = t1).n;
-	      } else {
-	        t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;
-	      }
-	    }
-	    d3_timer_queueTail = t0;
-	    return time;
-	  }
-	  function d3_format_precision(x, p) {
-	    return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
-	  }
-	  d3.round = function(x, n) {
-	    return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
-	  };
-	  var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
-	  d3.formatPrefix = function(value, precision) {
-	    var i = 0;
-	    if (value = +value) {
-	      if (value < 0) value *= -1;
-	      if (precision) value = d3.round(value, d3_format_precision(value, precision));
-	      i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
-	      i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));
-	    }
-	    return d3_formatPrefixes[8 + i / 3];
-	  };
-	  function d3_formatPrefix(d, i) {
-	    var k = Math.pow(10, abs(8 - i) * 3);
-	    return {
-	      scale: i > 8 ? function(d) {
-	        return d / k;
-	      } : function(d) {
-	        return d * k;
-	      },
-	      symbol: d
-	    };
-	  }
-	  function d3_locale_numberFormat(locale) {
-	    var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping && locale_thousands ? function(value, width) {
-	      var i = value.length, t = [], j = 0, g = locale_grouping[0], length = 0;
-	      while (i > 0 && g > 0) {
-	        if (length + g + 1 > width) g = Math.max(1, width - length);
-	        t.push(value.substring(i -= g, i + g));
-	        if ((length += g + 1) > width) break;
-	        g = locale_grouping[j = (j + 1) % locale_grouping.length];
-	      }
-	      return t.reverse().join(locale_thousands);
-	    } : d3_identity;
-	    return function(specifier) {
-	      var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "-", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false, exponent = true;
-	      if (precision) precision = +precision.substring(1);
-	      if (zfill || fill === "0" && align === "=") {
-	        zfill = fill = "0";
-	        align = "=";
-	      }
-	      switch (type) {
-	       case "n":
-	        comma = true;
-	        type = "g";
-	        break;
-
-	       case "%":
-	        scale = 100;
-	        suffix = "%";
-	        type = "f";
-	        break;
-
-	       case "p":
-	        scale = 100;
-	        suffix = "%";
-	        type = "r";
-	        break;
-
-	       case "b":
-	       case "o":
-	       case "x":
-	       case "X":
-	        if (symbol === "#") prefix = "0" + type.toLowerCase();
-
-	       case "c":
-	        exponent = false;
-
-	       case "d":
-	        integer = true;
-	        precision = 0;
-	        break;
-
-	       case "s":
-	        scale = -1;
-	        type = "r";
-	        break;
-	      }
-	      if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1];
-	      if (type == "r" && !precision) type = "g";
-	      if (precision != null) {
-	        if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
-	      }
-	      type = d3_format_types.get(type) || d3_format_typeDefault;
-	      var zcomma = zfill && comma;
-	      return function(value) {
-	        var fullSuffix = suffix;
-	        if (integer && value % 1) return "";
-	        var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign === "-" ? "" : sign;
-	        if (scale < 0) {
-	          var unit = d3.formatPrefix(value, precision);
-	          value = unit.scale(value);
-	          fullSuffix = unit.symbol + suffix;
-	        } else {
-	          value *= scale;
-	        }
-	        value = type(value, precision);
-	        var i = value.lastIndexOf("."), before, after;
-	        if (i < 0) {
-	          var j = exponent ? value.lastIndexOf("e") : -1;
-	          if (j < 0) before = value, after = ""; else before = value.substring(0, j), after = value.substring(j);
-	        } else {
-	          before = value.substring(0, i);
-	          after = locale_decimal + value.substring(i + 1);
-	        }
-	        if (!zfill && comma) before = formatGroup(before, Infinity);
-	        var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
-	        if (zcomma) before = formatGroup(padding + before, padding.length ? width - after.length : Infinity);
-	        negative += prefix;
-	        value = before + after;
-	        return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;
-	      };
-	    };
-	  }
-	  var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
-	  var d3_format_types = d3.map({
-	    b: function(x) {
-	      return x.toString(2);
-	    },
-	    c: function(x) {
-	      return String.fromCharCode(x);
-	    },
-	    o: function(x) {
-	      return x.toString(8);
-	    },
-	    x: function(x) {
-	      return x.toString(16);
-	    },
-	    X: function(x) {
-	      return x.toString(16).toUpperCase();
-	    },
-	    g: function(x, p) {
-	      return x.toPrecision(p);
-	    },
-	    e: function(x, p) {
-	      return x.toExponential(p);
-	    },
-	    f: function(x, p) {
-	      return x.toFixed(p);
-	    },
-	    r: function(x, p) {
-	      return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
-	    }
-	  });
-	  function d3_format_typeDefault(x) {
-	    return x + "";
-	  }
-	  var d3_time = d3.time = {}, d3_date = Date;
-	  function d3_date_utc() {
-	    this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
-	  }
-	  d3_date_utc.prototype = {
-	    getDate: function() {
-	      return this._.getUTCDate();
-	    },
-	    getDay: function() {
-	      return this._.getUTCDay();
-	    },
-	    getFullYear: function() {
-	      return this._.getUTCFullYear();
-	    },
-	    getHours: function() {
-	      return this._.getUTCHours();
-	    },
-	    getMilliseconds: function() {
-	      return this._.getUTCMilliseconds();
-	    },
-	    getMinutes: function() {
-	      return this._.getUTCMinutes();
-	    },
-	    getMonth: function() {
-	      return this._.getUTCMonth();
-	    },
-	    getSeconds: function() {
-	      return this._.getUTCSeconds();
-	    },
-	    getTime: function() {
-	      return this._.getTime();
-	    },
-	    getTimezoneOffset: function() {
-	      return 0;
-	    },
-	    valueOf: function() {
-	      return this._.valueOf();
-	    },
-	    setDate: function() {
-	      d3_time_prototype.setUTCDate.apply(this._, arguments);
-	    },
-	    setDay: function() {
-	      d3_time_prototype.setUTCDay.apply(this._, arguments);
-	    },
-	    setFullYear: function() {
-	      d3_time_prototype.setUTCFullYear.apply(this._, arguments);
-	    },
-	    setHours: function() {
-	      d3_time_prototype.setUTCHours.apply(this._, arguments);
-	    },
-	    setMilliseconds: function() {
-	      d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);
-	    },
-	    setMinutes: function() {
-	      d3_time_prototype.setUTCMinutes.apply(this._, arguments);
-	    },
-	    setMonth: function() {
-	      d3_time_prototype.setUTCMonth.apply(this._, arguments);
-	    },
-	    setSeconds: function() {
-	      d3_time_prototype.setUTCSeconds.apply(this._, arguments);
-	    },
-	    setTime: function() {
-	      d3_time_prototype.setTime.apply(this._, arguments);
-	    }
-	  };
-	  var d3_time_prototype = Date.prototype;
-	  function d3_time_interval(local, step, number) {
-	    function round(date) {
-	      var d0 = local(date), d1 = offset(d0, 1);
-	      return date - d0 < d1 - date ? d0 : d1;
-	    }
-	    function ceil(date) {
-	      step(date = local(new d3_date(date - 1)), 1);
-	      return date;
-	    }
-	    function offset(date, k) {
-	      step(date = new d3_date(+date), k);
-	      return date;
-	    }
-	    function range(t0, t1, dt) {
-	      var time = ceil(t0), times = [];
-	      if (dt > 1) {
-	        while (time < t1) {
-	          if (!(number(time) % dt)) times.push(new Date(+time));
-	          step(time, 1);
-	        }
-	      } else {
-	        while (time < t1) times.push(new Date(+time)), step(time, 1);
-	      }
-	      return times;
-	    }
-	    function range_utc(t0, t1, dt) {
-	      try {
-	        d3_date = d3_date_utc;
-	        var utc = new d3_date_utc();
-	        utc._ = t0;
-	        return range(utc, t1, dt);
-	      } finally {
-	        d3_date = Date;
-	      }
-	    }
-	    local.floor = local;
-	    local.round = round;
-	    local.ceil = ceil;
-	    local.offset = offset;
-	    local.range = range;
-	    var utc = local.utc = d3_time_interval_utc(local);
-	    utc.floor = utc;
-	    utc.round = d3_time_interval_utc(round);
-	    utc.ceil = d3_time_interval_utc(ceil);
-	    utc.offset = d3_time_interval_utc(offset);
-	    utc.range = range_utc;
-	    return local;
-	  }
-	  function d3_time_interval_utc(method) {
-	    return function(date, k) {
-	      try {
-	        d3_date = d3_date_utc;
-	        var utc = new d3_date_utc();
-	        utc._ = date;
-	        return method(utc, k)._;
-	      } finally {
-	        d3_date = Date;
-	      }
-	    };
-	  }
-	  d3_time.year = d3_time_interval(function(date) {
-	    date = d3_time.day(date);
-	    date.setMonth(0, 1);
-	    return date;
-	  }, function(date, offset) {
-	    date.setFullYear(date.getFullYear() + offset);
-	  }, function(date) {
-	    return date.getFullYear();
-	  });
-	  d3_time.years = d3_time.year.range;
-	  d3_time.years.utc = d3_time.year.utc.range;
-	  d3_time.day = d3_time_interval(function(date) {
-	    var day = new d3_date(2e3, 0);
-	    day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
-	    return day;
-	  }, function(date, offset) {
-	    date.setDate(date.getDate() + offset);
-	  }, function(date) {
-	    return date.getDate() - 1;
-	  });
-	  d3_time.days = d3_time.day.range;
-	  d3_time.days.utc = d3_time.day.utc.range;
-	  d3_time.dayOfYear = function(date) {
-	    var year = d3_time.year(date);
-	    return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);
-	  };
-	  [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) {
-	    i = 7 - i;
-	    var interval = d3_time[day] = d3_time_interval(function(date) {
-	      (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
-	      return date;
-	    }, function(date, offset) {
-	      date.setDate(date.getDate() + Math.floor(offset) * 7);
-	    }, function(date) {
-	      var day = d3_time.year(date).getDay();
-	      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
-	    });
-	    d3_time[day + "s"] = interval.range;
-	    d3_time[day + "s"].utc = interval.utc.range;
-	    d3_time[day + "OfYear"] = function(date) {
-	      var day = d3_time.year(date).getDay();
-	      return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);
-	    };
-	  });
-	  d3_time.week = d3_time.sunday;
-	  d3_time.weeks = d3_time.sunday.range;
-	  d3_time.weeks.utc = d3_time.sunday.utc.range;
-	  d3_time.weekOfYear = d3_time.sundayOfYear;
-	  function d3_locale_timeFormat(locale) {
-	    var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;
-	    function d3_time_format(template) {
-	      var n = template.length;
-	      function format(date) {
-	        var string = [], i = -1, j = 0, c, p, f;
-	        while (++i < n) {
-	          if (template.charCodeAt(i) === 37) {
-	            string.push(template.slice(j, i));
-	            if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
-	            if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
-	            string.push(c);
-	            j = i + 1;
-	          }
-	        }
-	        string.push(template.slice(j, i));
-	        return string.join("");
-	      }
-	      format.parse = function(string) {
-	        var d = {
-	          y: 1900,
-	          m: 0,
-	          d: 1,
-	          H: 0,
-	          M: 0,
-	          S: 0,
-	          L: 0,
-	          Z: null
-	        }, i = d3_time_parse(d, template, string, 0);
-	        if (i != string.length) return null;
-	        if ("p" in d) d.H = d.H % 12 + d.p * 12;
-	        var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();
-	        if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("W" in d || "U" in d) {
-	          if (!("w" in d)) d.w = "W" in d ? 1 : 0;
-	          date.setFullYear(d.y, 0, 1);
-	          date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);
-	        } else date.setFullYear(d.y, d.m, d.d);
-	        date.setHours(d.H + (d.Z / 100 | 0), d.M + d.Z % 100, d.S, d.L);
-	        return localZ ? date._ : date;
-	      };
-	      format.toString = function() {
-	        return template;
-	      };
-	      return format;
-	    }
-	    function d3_time_parse(date, template, string, j) {
-	      var c, p, t, i = 0, n = template.length, m = string.length;
-	      while (i < n) {
-	        if (j >= m) return -1;
-	        c = template.charCodeAt(i++);
-	        if (c === 37) {
-	          t = template.charAt(i++);
-	          p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];
-	          if (!p || (j = p(date, string, j)) < 0) return -1;
-	        } else if (c != string.charCodeAt(j++)) {
-	          return -1;
-	        }
-	      }
-	      return j;
-	    }
-	    d3_time_format.utc = function(template) {
-	      var local = d3_time_format(template);
-	      function format(date) {
-	        try {
-	          d3_date = d3_date_utc;
-	          var utc = new d3_date();
-	          utc._ = date;
-	          return local(utc);
-	        } finally {
-	          d3_date = Date;
-	        }
-	      }
-	      format.parse = function(string) {
-	        try {
-	          d3_date = d3_date_utc;
-	          var date = local.parse(string);
-	          return date && date._;
-	        } finally {
-	          d3_date = Date;
-	        }
-	      };
-	      format.toString = local.toString;
-	      return format;
-	    };
-	    d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;
-	    var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);
-	    locale_periods.forEach(function(p, i) {
-	      d3_time_periodLookup.set(p.toLowerCase(), i);
-	    });
-	    var d3_time_formats = {
-	      a: function(d) {
-	        return locale_shortDays[d.getDay()];
-	      },
-	      A: function(d) {
-	        return locale_days[d.getDay()];
-	      },
-	      b: function(d) {
-	        return locale_shortMonths[d.getMonth()];
-	      },
-	      B: function(d) {
-	        return locale_months[d.getMonth()];
-	      },
-	      c: d3_time_format(locale_dateTime),
-	      d: function(d, p) {
-	        return d3_time_formatPad(d.getDate(), p, 2);
-	      },
-	      e: function(d, p) {
-	        return d3_time_formatPad(d.getDate(), p, 2);
-	      },
-	      H: function(d, p) {
-	        return d3_time_formatPad(d.getHours(), p, 2);
-	      },
-	      I: function(d, p) {
-	        return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
-	      },
-	      j: function(d, p) {
-	        return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);
-	      },
-	      L: function(d, p) {
-	        return d3_time_formatPad(d.getMilliseconds(), p, 3);
-	      },
-	      m: function(d, p) {
-	        return d3_time_formatPad(d.getMonth() + 1, p, 2);
-	      },
-	      M: function(d, p) {
-	        return d3_time_formatPad(d.getMinutes(), p, 2);
-	      },
-	      p: function(d) {
-	        return locale_periods[+(d.getHours() >= 12)];
-	      },
-	      S: function(d, p) {
-	        return d3_time_formatPad(d.getSeconds(), p, 2);
-	      },
-	      U: function(d, p) {
-	        return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);
-	      },
-	      w: function(d) {
-	        return d.getDay();
-	      },
-	      W: function(d, p) {
-	        return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);
-	      },
-	      x: d3_time_format(locale_date),
-	      X: d3_time_format(locale_time),
-	      y: function(d, p) {
-	        return d3_time_formatPad(d.getFullYear() % 100, p, 2);
-	      },
-	      Y: function(d, p) {
-	        return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
-	      },
-	      Z: d3_time_zone,
-	      "%": function() {
-	        return "%";
-	      }
-	    };
-	    var d3_time_parsers = {
-	      a: d3_time_parseWeekdayAbbrev,
-	      A: d3_time_parseWeekday,
-	      b: d3_time_parseMonthAbbrev,
-	      B: d3_time_parseMonth,
-	      c: d3_time_parseLocaleFull,
-	      d: d3_time_parseDay,
-	      e: d3_time_parseDay,
-	      H: d3_time_parseHour24,
-	      I: d3_time_parseHour24,
-	      j: d3_time_parseDayOfYear,
-	      L: d3_time_parseMilliseconds,
-	      m: d3_time_parseMonthNumber,
-	      M: d3_time_parseMinutes,
-	      p: d3_time_parseAmPm,
-	      S: d3_time_parseSeconds,
-	      U: d3_time_parseWeekNumberSunday,
-	      w: d3_time_parseWeekdayNumber,
-	      W: d3_time_parseWeekNumberMonday,
-	      x: d3_time_parseLocaleDate,
-	      X: d3_time_parseLocaleTime,
-	      y: d3_time_parseYear,
-	      Y: d3_time_parseFullYear,
-	      Z: d3_time_parseZone,
-	      "%": d3_time_parseLiteralPercent
-	    };
-	    function d3_time_parseWeekdayAbbrev(date, string, i) {
-	      d3_time_dayAbbrevRe.lastIndex = 0;
-	      var n = d3_time_dayAbbrevRe.exec(string.slice(i));
-	      return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
-	    }
-	    function d3_time_parseWeekday(date, string, i) {
-	      d3_time_dayRe.lastIndex = 0;
-	      var n = d3_time_dayRe.exec(string.slice(i));
-	      return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
-	    }
-	    function d3_time_parseMonthAbbrev(date, string, i) {
-	      d3_time_monthAbbrevRe.lastIndex = 0;
-	      var n = d3_time_monthAbbrevRe.exec(string.slice(i));
-	      return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
-	    }
-	    function d3_time_parseMonth(date, string, i) {
-	      d3_time_monthRe.lastIndex = 0;
-	      var n = d3_time_monthRe.exec(string.slice(i));
-	      return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
-	    }
-	    function d3_time_parseLocaleFull(date, string, i) {
-	      return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
-	    }
-	    function d3_time_parseLocaleDate(date, string, i) {
-	      return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
-	    }
-	    function d3_time_parseLocaleTime(date, string, i) {
-	      return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
-	    }
-	    function d3_time_parseAmPm(date, string, i) {
-	      var n = d3_time_periodLookup.get(string.slice(i, i += 2).toLowerCase());
-	      return n == null ? -1 : (date.p = n, i);
-	    }
-	    return d3_time_format;
-	  }
-	  var d3_time_formatPads = {
-	    "-": "",
-	    _: " ",
-	    "0": "0"
-	  }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/;
-	  function d3_time_formatPad(value, fill, width) {
-	    var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length;
-	    return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
-	  }
-	  function d3_time_formatRe(names) {
-	    return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
-	  }
-	  function d3_time_formatLookup(names) {
-	    var map = new d3_Map(), i = -1, n = names.length;
-	    while (++i < n) map.set(names[i].toLowerCase(), i);
-	    return map;
-	  }
-	  function d3_time_parseWeekdayNumber(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 1));
-	    return n ? (date.w = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseWeekNumberSunday(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i));
-	    return n ? (date.U = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseWeekNumberMonday(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i));
-	    return n ? (date.W = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseFullYear(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 4));
-	    return n ? (date.y = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseYear(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
-	  }
-	  function d3_time_parseZone(date, string, i) {
-	    return /^[+-]\d{4}$/.test(string = string.slice(i, i + 5)) ? (date.Z = -string, 
-	    i + 5) : -1;
-	  }
-	  function d3_time_expandYear(d) {
-	    return d + (d > 68 ? 1900 : 2e3);
-	  }
-	  function d3_time_parseMonthNumber(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.m = n[0] - 1, i + n[0].length) : -1;
-	  }
-	  function d3_time_parseDay(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.d = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseDayOfYear(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
-	    return n ? (date.j = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseHour24(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.H = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseMinutes(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.M = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseSeconds(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 2));
-	    return n ? (date.S = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_parseMilliseconds(date, string, i) {
-	    d3_time_numberRe.lastIndex = 0;
-	    var n = d3_time_numberRe.exec(string.slice(i, i + 3));
-	    return n ? (date.L = +n[0], i + n[0].length) : -1;
-	  }
-	  function d3_time_zone(d) {
-	    var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = abs(z) / 60 | 0, zm = abs(z) % 60;
-	    return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
-	  }
-	  function d3_time_parseLiteralPercent(date, string, i) {
-	    d3_time_percentRe.lastIndex = 0;
-	    var n = d3_time_percentRe.exec(string.slice(i, i + 1));
-	    return n ? i + n[0].length : -1;
-	  }
-	  function d3_time_formatMulti(formats) {
-	    var n = formats.length, i = -1;
-	    while (++i < n) formats[i][0] = this(formats[i][0]);
-	    return function(date) {
-	      var i = 0, f = formats[i];
-	      while (!f[1](date)) f = formats[++i];
-	      return f[0](date);
-	    };
-	  }
-	  d3.locale = function(locale) {
-	    return {
-	      numberFormat: d3_locale_numberFormat(locale),
-	      timeFormat: d3_locale_timeFormat(locale)
-	    };
-	  };
-	  var d3_locale_enUS = d3.locale({
-	    decimal: ".",
-	    thousands: ",",
-	    grouping: [ 3 ],
-	    currency: [ "$", "" ],
-	    dateTime: "%a %b %e %X %Y",
-	    date: "%m/%d/%Y",
-	    time: "%H:%M:%S",
-	    periods: [ "AM", "PM" ],
-	    days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
-	    shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ],
-	    months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ],
-	    shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]
-	  });
-	  d3.format = d3_locale_enUS.numberFormat;
-	  d3.geo = {};
-	  function d3_adder() {}
-	  d3_adder.prototype = {
-	    s: 0,
-	    t: 0,
-	    add: function(y) {
-	      d3_adderSum(y, this.t, d3_adderTemp);
-	      d3_adderSum(d3_adderTemp.s, this.s, this);
-	      if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;
-	    },
-	    reset: function() {
-	      this.s = this.t = 0;
-	    },
-	    valueOf: function() {
-	      return this.s;
-	    }
-	  };
-	  var d3_adderTemp = new d3_adder();
-	  function d3_adderSum(a, b, o) {
-	    var x = o.s = a + b, bv = x - a, av = x - bv;
-	    o.t = a - av + (b - bv);
-	  }
-	  d3.geo.stream = function(object, listener) {
-	    if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {
-	      d3_geo_streamObjectType[object.type](object, listener);
-	    } else {
-	      d3_geo_streamGeometry(object, listener);
-	    }
-	  };
-	  function d3_geo_streamGeometry(geometry, listener) {
-	    if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
-	      d3_geo_streamGeometryType[geometry.type](geometry, listener);
-	    }
-	  }
-	  var d3_geo_streamObjectType = {
-	    Feature: function(feature, listener) {
-	      d3_geo_streamGeometry(feature.geometry, listener);
-	    },
-	    FeatureCollection: function(object, listener) {
-	      var features = object.features, i = -1, n = features.length;
-	      while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
-	    }
-	  };
-	  var d3_geo_streamGeometryType = {
-	    Sphere: function(object, listener) {
-	      listener.sphere();
-	    },
-	    Point: function(object, listener) {
-	      object = object.coordinates;
-	      listener.point(object[0], object[1], object[2]);
-	    },
-	    MultiPoint: function(object, listener) {
-	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
-	      while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);
-	    },
-	    LineString: function(object, listener) {
-	      d3_geo_streamLine(object.coordinates, listener, 0);
-	    },
-	    MultiLineString: function(object, listener) {
-	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
-	      while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
-	    },
-	    Polygon: function(object, listener) {
-	      d3_geo_streamPolygon(object.coordinates, listener);
-	    },
-	    MultiPolygon: function(object, listener) {
-	      var coordinates = object.coordinates, i = -1, n = coordinates.length;
-	      while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
-	    },
-	    GeometryCollection: function(object, listener) {
-	      var geometries = object.geometries, i = -1, n = geometries.length;
-	      while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
-	    }
-	  };
-	  function d3_geo_streamLine(coordinates, listener, closed) {
-	    var i = -1, n = coordinates.length - closed, coordinate;
-	    listener.lineStart();
-	    while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);
-	    listener.lineEnd();
-	  }
-	  function d3_geo_streamPolygon(coordinates, listener) {
-	    var i = -1, n = coordinates.length;
-	    listener.polygonStart();
-	    while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
-	    listener.polygonEnd();
-	  }
-	  d3.geo.area = function(object) {
-	    d3_geo_areaSum = 0;
-	    d3.geo.stream(object, d3_geo_area);
-	    return d3_geo_areaSum;
-	  };
-	  var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();
-	  var d3_geo_area = {
-	    sphere: function() {
-	      d3_geo_areaSum += 4 * π;
-	    },
-	    point: d3_noop,
-	    lineStart: d3_noop,
-	    lineEnd: d3_noop,
-	    polygonStart: function() {
-	      d3_geo_areaRingSum.reset();
-	      d3_geo_area.lineStart = d3_geo_areaRingStart;
-	    },
-	    polygonEnd: function() {
-	      var area = 2 * d3_geo_areaRingSum;
-	      d3_geo_areaSum += area < 0 ? 4 * π + area : area;
-	      d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
-	    }
-	  };
-	  function d3_geo_areaRingStart() {
-	    var λ00, φ00, λ0, cosφ0, sinφ0;
-	    d3_geo_area.point = function(λ, φ) {
-	      d3_geo_area.point = nextPoint;
-	      λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4), 
-	      sinφ0 = Math.sin(φ);
-	    };
-	    function nextPoint(λ, φ) {
-	      λ *= d3_radians;
-	      φ = φ * d3_radians / 2 + π / 4;
-	      var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);
-	      d3_geo_areaRingSum.add(Math.atan2(v, u));
-	      λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
-	    }
-	    d3_geo_area.lineEnd = function() {
-	      nextPoint(λ00, φ00);
-	    };
-	  }
-	  function d3_geo_cartesian(spherical) {
-	    var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
-	    return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
-	  }
-	  function d3_geo_cartesianDot(a, b) {
-	    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
-	  }
-	  function d3_geo_cartesianCross(a, b) {
-	    return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
-	  }
-	  function d3_geo_cartesianAdd(a, b) {
-	    a[0] += b[0];
-	    a[1] += b[1];
-	    a[2] += b[2];
-	  }
-	  function d3_geo_cartesianScale(vector, k) {
-	    return [ vector[0] * k, vector[1] * k, vector[2] * k ];
-	  }
-	  function d3_geo_cartesianNormalize(d) {
-	    var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
-	    d[0] /= l;
-	    d[1] /= l;
-	    d[2] /= l;
-	  }
-	  function d3_geo_spherical(cartesian) {
-	    return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];
-	  }
-	  function d3_geo_sphericalEqual(a, b) {
-	    return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;
-	  }
-	  d3.geo.bounds = function() {
-	    var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;
-	    var bound = {
-	      point: point,
-	      lineStart: lineStart,
-	      lineEnd: lineEnd,
-	      polygonStart: function() {
-	        bound.point = ringPoint;
-	        bound.lineStart = ringStart;
-	        bound.lineEnd = ringEnd;
-	        dλSum = 0;
-	        d3_geo_area.polygonStart();
-	      },
-	      polygonEnd: function() {
-	        d3_geo_area.polygonEnd();
-	        bound.point = point;
-	        bound.lineStart = lineStart;
-	        bound.lineEnd = lineEnd;
-	        if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;
-	        range[0] = λ0, range[1] = λ1;
-	      }
-	    };
-	    function point(λ, φ) {
-	      ranges.push(range = [ λ0 = λ, λ1 = λ ]);
-	      if (φ < φ0) φ0 = φ;
-	      if (φ > φ1) φ1 = φ;
-	    }
-	    function linePoint(λ, φ) {
-	      var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);
-	      if (p0) {
-	        var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);
-	        d3_geo_cartesianNormalize(inflection);
-	        inflection = d3_geo_spherical(inflection);
-	        var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;
-	        if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
-	          var φi = inflection[1] * d3_degrees;
-	          if (φi > φ1) φ1 = φi;
-	        } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
-	          var φi = -inflection[1] * d3_degrees;
-	          if (φi < φ0) φ0 = φi;
-	        } else {
-	          if (φ < φ0) φ0 = φ;
-	          if (φ > φ1) φ1 = φ;
-	        }
-	        if (antimeridian) {
-	          if (λ < λ_) {
-	            if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
-	          } else {
-	            if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
-	          }
-	        } else {
-	          if (λ1 >= λ0) {
-	            if (λ < λ0) λ0 = λ;
-	            if (λ > λ1) λ1 = λ;
-	          } else {
-	            if (λ > λ_) {
-	              if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
-	            } else {
-	              if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
-	            }
-	          }
-	        }
-	      } else {
-	        point(λ, φ);
-	      }
-	      p0 = p, λ_ = λ;
-	    }
-	    function lineStart() {
-	      bound.point = linePoint;
-	    }
-	    function lineEnd() {
-	      range[0] = λ0, range[1] = λ1;
-	      bound.point = point;
-	      p0 = null;
-	    }
-	    function ringPoint(λ, φ) {
-	      if (p0) {
-	        var dλ = λ - λ_;
-	        dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;
-	      } else λ__ = λ, φ__ = φ;
-	      d3_geo_area.point(λ, φ);
-	      linePoint(λ, φ);
-	    }
-	    function ringStart() {
-	      d3_geo_area.lineStart();
-	    }
-	    function ringEnd() {
-	      ringPoint(λ__, φ__);
-	      d3_geo_area.lineEnd();
-	      if (abs(dλSum) > ε) λ0 = -(λ1 = 180);
-	      range[0] = λ0, range[1] = λ1;
-	      p0 = null;
-	    }
-	    function angle(λ0, λ1) {
-	      return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;
-	    }
-	    function compareRanges(a, b) {
-	      return a[0] - b[0];
-	    }
-	    function withinRange(x, range) {
-	      return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
-	    }
-	    return function(feature) {
-	      φ1 = λ1 = -(λ0 = φ0 = Infinity);
-	      ranges = [];
-	      d3.geo.stream(feature, bound);
-	      var n = ranges.length;
-	      if (n) {
-	        ranges.sort(compareRanges);
-	        for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {
-	          b = ranges[i];
-	          if (withinRange(b[0], a) || withinRange(b[1], a)) {
-	            if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
-	            if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
-	          } else {
-	            merged.push(a = b);
-	          }
-	        }
-	        var best = -Infinity, dλ;
-	        for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {
-	          b = merged[i];
-	          if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];
-	        }
-	      }
-	      ranges = range = null;
-	      return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];
-	    };
-	  }();
-	  d3.geo.centroid = function(object) {
-	    d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
-	    d3.geo.stream(object, d3_geo_centroid);
-	    var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;
-	    if (m < ε2) {
-	      x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;
-	      if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;
-	      m = x * x + y * y + z * z;
-	      if (m < ε2) return [ NaN, NaN ];
-	    }
-	    return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];
-	  };
-	  var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;
-	  var d3_geo_centroid = {
-	    sphere: d3_noop,
-	    point: d3_geo_centroidPoint,
-	    lineStart: d3_geo_centroidLineStart,
-	    lineEnd: d3_geo_centroidLineEnd,
-	    polygonStart: function() {
-	      d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
-	    },
-	    polygonEnd: function() {
-	      d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
-	    }
-	  };
-	  function d3_geo_centroidPoint(λ, φ) {
-	    λ *= d3_radians;
-	    var cosφ = Math.cos(φ *= d3_radians);
-	    d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));
-	  }
-	  function d3_geo_centroidPointXYZ(x, y, z) {
-	    ++d3_geo_centroidW0;
-	    d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;
-	    d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;
-	    d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;
-	  }
-	  function d3_geo_centroidLineStart() {
-	    var x0, y0, z0;
-	    d3_geo_centroid.point = function(λ, φ) {
-	      λ *= d3_radians;
-	      var cosφ = Math.cos(φ *= d3_radians);
-	      x0 = cosφ * Math.cos(λ);
-	      y0 = cosφ * Math.sin(λ);
-	      z0 = Math.sin(φ);
-	      d3_geo_centroid.point = nextPoint;
-	      d3_geo_centroidPointXYZ(x0, y0, z0);
-	    };
-	    function nextPoint(λ, φ) {
-	      λ *= d3_radians;
-	      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
-	      d3_geo_centroidW1 += w;
-	      d3_geo_centroidX1 += w * (x0 + (x0 = x));
-	      d3_geo_centroidY1 += w * (y0 + (y0 = y));
-	      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
-	      d3_geo_centroidPointXYZ(x0, y0, z0);
-	    }
-	  }
-	  function d3_geo_centroidLineEnd() {
-	    d3_geo_centroid.point = d3_geo_centroidPoint;
-	  }
-	  function d3_geo_centroidRingStart() {
-	    var λ00, φ00, x0, y0, z0;
-	    d3_geo_centroid.point = function(λ, φ) {
-	      λ00 = λ, φ00 = φ;
-	      d3_geo_centroid.point = nextPoint;
-	      λ *= d3_radians;
-	      var cosφ = Math.cos(φ *= d3_radians);
-	      x0 = cosφ * Math.cos(λ);
-	      y0 = cosφ * Math.sin(λ);
-	      z0 = Math.sin(φ);
-	      d3_geo_centroidPointXYZ(x0, y0, z0);
-	    };
-	    d3_geo_centroid.lineEnd = function() {
-	      nextPoint(λ00, φ00);
-	      d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
-	      d3_geo_centroid.point = d3_geo_centroidPoint;
-	    };
-	    function nextPoint(λ, φ) {
-	      λ *= d3_radians;
-	      var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);
-	      d3_geo_centroidX2 += v * cx;
-	      d3_geo_centroidY2 += v * cy;
-	      d3_geo_centroidZ2 += v * cz;
-	      d3_geo_centroidW1 += w;
-	      d3_geo_centroidX1 += w * (x0 + (x0 = x));
-	      d3_geo_centroidY1 += w * (y0 + (y0 = y));
-	      d3_geo_centroidZ1 += w * (z0 + (z0 = z));
-	      d3_geo_centroidPointXYZ(x0, y0, z0);
-	    }
-	  }
-	  function d3_geo_compose(a, b) {
-	    function compose(x, y) {
-	      return x = a(x, y), b(x[0], x[1]);
-	    }
-	    if (a.invert && b.invert) compose.invert = function(x, y) {
-	      return x = b.invert(x, y), x && a.invert(x[0], x[1]);
-	    };
-	    return compose;
-	  }
-	  function d3_true() {
-	    return true;
-	  }
-	  function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {
-	    var subject = [], clip = [];
-	    segments.forEach(function(segment) {
-	      if ((n = segment.length - 1) <= 0) return;
-	      var n, p0 = segment[0], p1 = segment[n];
-	      if (d3_geo_sphericalEqual(p0, p1)) {
-	        listener.lineStart();
-	        for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
-	        listener.lineEnd();
-	        return;
-	      }
-	      var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);
-	      a.o = b;
-	      subject.push(a);
-	      clip.push(b);
-	      a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);
-	      b = new d3_geo_clipPolygonIntersection(p1, null, a, true);
-	      a.o = b;
-	      subject.push(a);
-	      clip.push(b);
-	    });
-	    clip.sort(compare);
-	    d3_geo_clipPolygonLinkCircular(subject);
-	    d3_geo_clipPolygonLinkCircular(clip);
-	    if (!subject.length) return;
-	    for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {
-	      clip[i].e = entry = !entry;
-	    }
-	    var start = subject[0], points, point;
-	    while (1) {
-	      var current = start, isSubject = true;
-	      while (current.v) if ((current = current.n) === start) return;
-	      points = current.z;
-	      listener.lineStart();
-	      do {
-	        current.v = current.o.v = true;
-	        if (current.e) {
-	          if (isSubject) {
-	            for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);
-	          } else {
-	            interpolate(current.x, current.n.x, 1, listener);
-	          }
-	          current = current.n;
-	        } else {
-	          if (isSubject) {
-	            points = current.p.z;
-	            for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);
-	          } else {
-	            interpolate(current.x, current.p.x, -1, listener);
-	          }
-	          current = current.p;
-	        }
-	        current = current.o;
-	        points = current.z;
-	        isSubject = !isSubject;
-	      } while (!current.v);
-	      listener.lineEnd();
-	    }
-	  }
-	  function d3_geo_clipPolygonLinkCircular(array) {
-	    if (!(n = array.length)) return;
-	    var n, i = 0, a = array[0], b;
-	    while (++i < n) {
-	      a.n = b = array[i];
-	      b.p = a;
-	      a = b;
-	    }
-	    a.n = b = array[0];
-	    b.p = a;
-	  }
-	  function d3_geo_clipPolygonIntersection(point, points, other, entry) {
-	    this.x = point;
-	    this.z = points;
-	    this.o = other;
-	    this.e = entry;
-	    this.v = false;
-	    this.n = this.p = null;
-	  }
-	  function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {
-	    return function(rotate, listener) {
-	      var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);
-	      var clip = {
-	        point: point,
-	        lineStart: lineStart,
-	        lineEnd: lineEnd,
-	        polygonStart: function() {
-	          clip.point = pointRing;
-	          clip.lineStart = ringStart;
-	          clip.lineEnd = ringEnd;
-	          segments = [];
-	          polygon = [];
-	        },
-	        polygonEnd: function() {
-	          clip.point = point;
-	          clip.lineStart = lineStart;
-	          clip.lineEnd = lineEnd;
-	          segments = d3.merge(segments);
-	          var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);
-	          if (segments.length) {
-	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
-	            d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);
-	          } else if (clipStartInside) {
-	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
-	            listener.lineStart();
-	            interpolate(null, null, 1, listener);
-	            listener.lineEnd();
-	          }
-	          if (polygonStarted) listener.polygonEnd(), polygonStarted = false;
-	          segments = polygon = null;
-	        },
-	        sphere: function() {
-	          listener.polygonStart();
-	          listener.lineStart();
-	          interpolate(null, null, 1, listener);
-	          listener.lineEnd();
-	          listener.polygonEnd();
-	        }
-	      };
-	      function point(λ, φ) {
-	        var point = rotate(λ, φ);
-	        if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);
-	      }
-	      function pointLine(λ, φ) {
-	        var point = rotate(λ, φ);
-	        line.point(point[0], point[1]);
-	      }
-	      function lineStart() {
-	        clip.point = pointLine;
-	        line.lineStart();
-	      }
-	      function lineEnd() {
-	        clip.point = point;
-	        line.lineEnd();
-	      }
-	      var segments;
-	      var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;
-	      function pointRing(λ, φ) {
-	        ring.push([ λ, φ ]);
-	        var point = rotate(λ, φ);
-	        ringListener.point(point[0], point[1]);
-	      }
-	      function ringStart() {
-	        ringListener.lineStart();
-	        ring = [];
-	      }
-	      function ringEnd() {
-	        pointRing(ring[0][0], ring[0][1]);
-	        ringListener.lineEnd();
-	        var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
-	        ring.pop();
-	        polygon.push(ring);
-	        ring = null;
-	        if (!n) return;
-	        if (clean & 1) {
-	          segment = ringSegments[0];
-	          var n = segment.length - 1, i = -1, point;
-	          if (n > 0) {
-	            if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
-	            listener.lineStart();
-	            while (++i < n) listener.point((point = segment[i])[0], point[1]);
-	            listener.lineEnd();
-	          }
-	          return;
-	        }
-	        if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
-	        segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
-	      }
-	      return clip;
-	    };
-	  }
-	  function d3_geo_clipSegmentLength1(segment) {
-	    return segment.length > 1;
-	  }
-	  function d3_geo_clipBufferListener() {
-	    var lines = [], line;
-	    return {
-	      lineStart: function() {
-	        lines.push(line = []);
-	      },
-	      point: function(λ, φ) {
-	        line.push([ λ, φ ]);
-	      },
-	      lineEnd: d3_noop,
-	      buffer: function() {
-	        var buffer = lines;
-	        lines = [];
-	        line = null;
-	        return buffer;
-	      },
-	      rejoin: function() {
-	        if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
-	      }
-	    };
-	  }
-	  function d3_geo_clipSort(a, b) {
-	    return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);
-	  }
-	  var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);
-	  function d3_geo_clipAntimeridianLine(listener) {
-	    var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
-	    return {
-	      lineStart: function() {
-	        listener.lineStart();
-	        clean = 1;
-	      },
-	      point: function(λ1, φ1) {
-	        var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);
-	        if (abs(dλ - π) < ε) {
-	          listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);
-	          listener.point(sλ0, φ0);
-	          listener.lineEnd();
-	          listener.lineStart();
-	          listener.point(sλ1, φ0);
-	          listener.point(λ1, φ0);
-	          clean = 0;
-	        } else if (sλ0 !== sλ1 && dλ >= π) {
-	          if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
-	          if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
-	          φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
-	          listener.point(sλ0, φ0);
-	          listener.lineEnd();
-	          listener.lineStart();
-	          listener.point(sλ1, φ0);
-	          clean = 0;
-	        }
-	        listener.point(λ0 = λ1, φ0 = φ1);
-	        sλ0 = sλ1;
-	      },
-	      lineEnd: function() {
-	        listener.lineEnd();
-	        λ0 = φ0 = NaN;
-	      },
-	      clean: function() {
-	        return 2 - clean;
-	      }
-	    };
-	  }
-	  function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
-	    var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
-	    return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
-	  }
-	  function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
-	    var φ;
-	    if (from == null) {
-	      φ = direction * halfπ;
-	      listener.point(-π, φ);
-	      listener.point(0, φ);
-	      listener.point(π, φ);
-	      listener.point(π, 0);
-	      listener.point(π, -φ);
-	      listener.point(0, -φ);
-	      listener.point(-π, -φ);
-	      listener.point(-π, 0);
-	      listener.point(-π, φ);
-	    } else if (abs(from[0] - to[0]) > ε) {
-	      var s = from[0] < to[0] ? π : -π;
-	      φ = direction * s / 2;
-	      listener.point(-s, φ);
-	      listener.point(0, φ);
-	      listener.point(s, φ);
-	    } else {
-	      listener.point(to[0], to[1]);
-	    }
-	  }
-	  function d3_geo_pointInPolygon(point, polygon) {
-	    var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;
-	    d3_geo_areaRingSum.reset();
-	    for (var i = 0, n = polygon.length; i < n; ++i) {
-	      var ring = polygon[i], m = ring.length;
-	      if (!m) continue;
-	      var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;
-	      while (true) {
-	        if (j === m) j = 0;
-	        point = ring[j];
-	        var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;
-	        d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));
-	        polarAngle += antimeridian ? dλ + sdλ * τ : dλ;
-	        if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {
-	          var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));
-	          d3_geo_cartesianNormalize(arc);
-	          var intersection = d3_geo_cartesianCross(meridianNormal, arc);
-	          d3_geo_cartesianNormalize(intersection);
-	          var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);
-	          if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {
-	            winding += antimeridian ^ dλ >= 0 ? 1 : -1;
-	          }
-	        }
-	        if (!j++) break;
-	        λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;
-	      }
-	    }
-	    return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < -ε) ^ winding & 1;
-	  }
-	  function d3_geo_clipCircle(radius) {
-	    var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
-	    return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);
-	    function visible(λ, φ) {
-	      return Math.cos(λ) * Math.cos(φ) > cr;
-	    }
-	    function clipLine(listener) {
-	      var point0, c0, v0, v00, clean;
-	      return {
-	        lineStart: function() {
-	          v00 = v0 = false;
-	          clean = 1;
-	        },
-	        point: function(λ, φ) {
-	          var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
-	          if (!point0 && (v00 = v0 = v)) listener.lineStart();
-	          if (v !== v0) {
-	            point2 = intersect(point0, point1);
-	            if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
-	              point1[0] += ε;
-	              point1[1] += ε;
-	              v = visible(point1[0], point1[1]);
-	            }
-	          }
-	          if (v !== v0) {
-	            clean = 0;
-	            if (v) {
-	              listener.lineStart();
-	              point2 = intersect(point1, point0);
-	              listener.point(point2[0], point2[1]);
-	            } else {
-	              point2 = intersect(point0, point1);
-	              listener.point(point2[0], point2[1]);
-	              listener.lineEnd();
-	            }
-	            point0 = point2;
-	          } else if (notHemisphere && point0 && smallRadius ^ v) {
-	            var t;
-	            if (!(c & c0) && (t = intersect(point1, point0, true))) {
-	              clean = 0;
-	              if (smallRadius) {
-	                listener.lineStart();
-	                listener.point(t[0][0], t[0][1]);
-	                listener.point(t[1][0], t[1][1]);
-	                listener.lineEnd();
-	              } else {
-	                listener.point(t[1][0], t[1][1]);
-	                listener.lineEnd();
-	                listener.lineStart();
-	                listener.point(t[0][0], t[0][1]);
-	              }
-	            }
-	          }
-	          if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
-	            listener.point(point1[0], point1[1]);
-	          }
-	          point0 = point1, v0 = v, c0 = c;
-	        },
-	        lineEnd: function() {
-	          if (v0) listener.lineEnd();
-	          point0 = null;
-	        },
-	        clean: function() {
-	          return clean | (v00 && v0) << 1;
-	        }
-	      };
-	    }
-	    function intersect(a, b, two) {
-	      var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
-	      var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
-	      if (!determinant) return !two && a;
-	      var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
-	      d3_geo_cartesianAdd(A, B);
-	      var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
-	      if (t2 < 0) return;
-	      var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
-	      d3_geo_cartesianAdd(q, A);
-	      q = d3_geo_spherical(q);
-	      if (!two) return q;
-	      var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
-	      if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
-	      var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;
-	      if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
-	      if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
-	        var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
-	        d3_geo_cartesianAdd(q1, A);
-	        return [ q, d3_geo_spherical(q1) ];
-	      }
-	    }
-	    function code(λ, φ) {
-	      var r = smallRadius ? radius : π - radius, code = 0;
-	      if (λ < -r) code |= 1; else if (λ > r) code |= 2;
-	      if (φ < -r) code |= 4; else if (φ > r) code |= 8;
-	      return code;
-	    }
-	  }
-	  function d3_geom_clipLine(x0, y0, x1, y1) {
-	    return function(line) {
-	      var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;
-	      r = x0 - ax;
-	      if (!dx && r > 0) return;
-	      r /= dx;
-	      if (dx < 0) {
-	        if (r < t0) return;
-	        if (r < t1) t1 = r;
-	      } else if (dx > 0) {
-	        if (r > t1) return;
-	        if (r > t0) t0 = r;
-	      }
-	      r = x1 - ax;
-	      if (!dx && r < 0) return;
-	      r /= dx;
-	      if (dx < 0) {
-	        if (r > t1) return;
-	        if (r > t0) t0 = r;
-	      } else if (dx > 0) {
-	        if (r < t0) return;
-	        if (r < t1) t1 = r;
-	      }
-	      r = y0 - ay;
-	      if (!dy && r > 0) return;
-	      r /= dy;
-	      if (dy < 0) {
-	        if (r < t0) return;
-	        if (r < t1) t1 = r;
-	      } else if (dy > 0) {
-	        if (r > t1) return;
-	        if (r > t0) t0 = r;
-	      }
-	      r = y1 - ay;
-	      if (!dy && r < 0) return;
-	      r /= dy;
-	      if (dy < 0) {
-	        if (r > t1) return;
-	        if (r > t0) t0 = r;
-	      } else if (dy > 0) {
-	        if (r < t0) return;
-	        if (r < t1) t1 = r;
-	      }
-	      if (t0 > 0) line.a = {
-	        x: ax + t0 * dx,
-	        y: ay + t0 * dy
-	      };
-	      if (t1 < 1) line.b = {
-	        x: ax + t1 * dx,
-	        y: ay + t1 * dy
-	      };
-	      return line;
-	    };
-	  }
-	  var d3_geo_clipExtentMAX = 1e9;
-	  d3.geo.clipExtent = function() {
-	    var x0, y0, x1, y1, stream, clip, clipExtent = {
-	      stream: function(output) {
-	        if (stream) stream.valid = false;
-	        stream = clip(output);
-	        stream.valid = true;
-	        return stream;
-	      },
-	      extent: function(_) {
-	        if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
-	        clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);
-	        if (stream) stream.valid = false, stream = null;
-	        return clipExtent;
-	      }
-	    };
-	    return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);
-	  };
-	  function d3_geo_clipExtent(x0, y0, x1, y1) {
-	    return function(listener) {
-	      var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;
-	      var clip = {
-	        point: point,
-	        lineStart: lineStart,
-	        lineEnd: lineEnd,
-	        polygonStart: function() {
-	          listener = bufferListener;
-	          segments = [];
-	          polygon = [];
-	          clean = true;
-	        },
-	        polygonEnd: function() {
-	          listener = listener_;
-	          segments = d3.merge(segments);
-	          var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;
-	          if (inside || visible) {
-	            listener.polygonStart();
-	            if (inside) {
-	              listener.lineStart();
-	              interpolate(null, null, 1, listener);
-	              listener.lineEnd();
-	            }
-	            if (visible) {
-	              d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);
-	            }
-	            listener.polygonEnd();
-	          }
-	          segments = polygon = ring = null;
-	        }
-	      };
-	      function insidePolygon(p) {
-	        var wn = 0, n = polygon.length, y = p[1];
-	        for (var i = 0; i < n; ++i) {
-	          for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {
-	            b = v[j];
-	            if (a[1] <= y) {
-	              if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;
-	            } else {
-	              if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;
-	            }
-	            a = b;
-	          }
-	        }
-	        return wn !== 0;
-	      }
-	      function interpolate(from, to, direction, listener) {
-	        var a = 0, a1 = 0;
-	        if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
-	          do {
-	            listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
-	          } while ((a = (a + direction + 4) % 4) !== a1);
-	        } else {
-	          listener.point(to[0], to[1]);
-	        }
-	      }
-	      function pointVisible(x, y) {
-	        return x0 <= x && x <= x1 && y0 <= y && y <= y1;
-	      }
-	      function point(x, y) {
-	        if (pointVisible(x, y)) listener.point(x, y);
-	      }
-	      var x__, y__, v__, x_, y_, v_, first, clean;
-	      function lineStart() {
-	        clip.point = linePoint;
-	        if (polygon) polygon.push(ring = []);
-	        first = true;
-	        v_ = false;
-	        x_ = y_ = NaN;
-	      }
-	      function lineEnd() {
-	        if (segments) {
-	          linePoint(x__, y__);
-	          if (v__ && v_) bufferListener.rejoin();
-	          segments.push(bufferListener.buffer());
-	        }
-	        clip.point = point;
-	        if (v_) listener.lineEnd();
-	      }
-	      function linePoint(x, y) {
-	        x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));
-	        y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));
-	        var v = pointVisible(x, y);
-	        if (polygon) ring.push([ x, y ]);
-	        if (first) {
-	          x__ = x, y__ = y, v__ = v;
-	          first = false;
-	          if (v) {
-	            listener.lineStart();
-	            listener.point(x, y);
-	          }
-	        } else {
-	          if (v && v_) listener.point(x, y); else {
-	            var l = {
-	              a: {
-	                x: x_,
-	                y: y_
-	              },
-	              b: {
-	                x: x,
-	                y: y
-	              }
-	            };
-	            if (clipLine(l)) {
-	              if (!v_) {
-	                listener.lineStart();
-	                listener.point(l.a.x, l.a.y);
-	              }
-	              listener.point(l.b.x, l.b.y);
-	              if (!v) listener.lineEnd();
-	              clean = false;
-	            } else if (v) {
-	              listener.lineStart();
-	              listener.point(x, y);
-	              clean = false;
-	            }
-	          }
-	        }
-	        x_ = x, y_ = y, v_ = v;
-	      }
-	      return clip;
-	    };
-	    function corner(p, direction) {
-	      return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
-	    }
-	    function compare(a, b) {
-	      return comparePoints(a.x, b.x);
-	    }
-	    function comparePoints(a, b) {
-	      var ca = corner(a, 1), cb = corner(b, 1);
-	      return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
-	    }
-	  }
-	  function d3_geo_conic(projectAt) {
-	    var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
-	    p.parallels = function(_) {
-	      if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
-	      return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
-	    };
-	    return p;
-	  }
-	  function d3_geo_conicEqualArea(φ0, φ1) {
-	    var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
-	    function forward(λ, φ) {
-	      var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
-	      return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
-	    }
-	    forward.invert = function(x, y) {
-	      var ρ0_y = ρ0 - y;
-	      return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
-	    };
-	    return forward;
-	  }
-	  (d3.geo.conicEqualArea = function() {
-	    return d3_geo_conic(d3_geo_conicEqualArea);
-	  }).raw = d3_geo_conicEqualArea;
-	  d3.geo.albers = function() {
-	    return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);
-	  };
-	  d3.geo.albersUsa = function() {
-	    var lower48 = d3.geo.albers();
-	    var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);
-	    var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);
-	    var point, pointStream = {
-	      point: function(x, y) {
-	        point = [ x, y ];
-	      }
-	    }, lower48Point, alaskaPoint, hawaiiPoint;
-	    function albersUsa(coordinates) {
-	      var x = coordinates[0], y = coordinates[1];
-	      point = null;
-	      (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);
-	      return point;
-	    }
-	    albersUsa.invert = function(coordinates) {
-	      var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;
-	      return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);
-	    };
-	    albersUsa.stream = function(stream) {
-	      var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);
-	      return {
-	        point: function(x, y) {
-	          lower48Stream.point(x, y);
-	          alaskaStream.point(x, y);
-	          hawaiiStream.point(x, y);
-	        },
-	        sphere: function() {
-	          lower48Stream.sphere();
-	          alaskaStream.sphere();
-	          hawaiiStream.sphere();
-	        },
-	        lineStart: function() {
-	          lower48Stream.lineStart();
-	          alaskaStream.lineStart();
-	          hawaiiStream.lineStart();
-	        },
-	        lineEnd: function() {
-	          lower48Stream.lineEnd();
-	          alaskaStream.lineEnd();
-	          hawaiiStream.lineEnd();
-	        },
-	        polygonStart: function() {
-	          lower48Stream.polygonStart();
-	          alaskaStream.polygonStart();
-	          hawaiiStream.polygonStart();
-	        },
-	        polygonEnd: function() {
-	          lower48Stream.polygonEnd();
-	          alaskaStream.polygonEnd();
-	          hawaiiStream.polygonEnd();
-	        }
-	      };
-	    };
-	    albersUsa.precision = function(_) {
-	      if (!arguments.length) return lower48.precision();
-	      lower48.precision(_);
-	      alaska.precision(_);
-	      hawaii.precision(_);
-	      return albersUsa;
-	    };
-	    albersUsa.scale = function(_) {
-	      if (!arguments.length) return lower48.scale();
-	      lower48.scale(_);
-	      alaska.scale(_ * .35);
-	      hawaii.scale(_);
-	      return albersUsa.translate(lower48.translate());
-	    };
-	    albersUsa.translate = function(_) {
-	      if (!arguments.length) return lower48.translate();
-	      var k = lower48.scale(), x = +_[0], y = +_[1];
-	      lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;
-	      alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
-	      hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
-	      return albersUsa;
-	    };
-	    return albersUsa.scale(1070);
-	  };
-	  var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
-	    point: d3_noop,
-	    lineStart: d3_noop,
-	    lineEnd: d3_noop,
-	    polygonStart: function() {
-	      d3_geo_pathAreaPolygon = 0;
-	      d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
-	    },
-	    polygonEnd: function() {
-	      d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
-	      d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);
-	    }
-	  };
-	  function d3_geo_pathAreaRingStart() {
-	    var x00, y00, x0, y0;
-	    d3_geo_pathArea.point = function(x, y) {
-	      d3_geo_pathArea.point = nextPoint;
-	      x00 = x0 = x, y00 = y0 = y;
-	    };
-	    function nextPoint(x, y) {
-	      d3_geo_pathAreaPolygon += y0 * x - x0 * y;
-	      x0 = x, y0 = y;
-	    }
-	    d3_geo_pathArea.lineEnd = function() {
-	      nextPoint(x00, y00);
-	    };
-	  }
-	  var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;
-	  var d3_geo_pathBounds = {
-	    point: d3_geo_pathBoundsPoint,
-	    lineStart: d3_noop,
-	    lineEnd: d3_noop,
-	    polygonStart: d3_noop,
-	    polygonEnd: d3_noop
-	  };
-	  function d3_geo_pathBoundsPoint(x, y) {
-	    if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;
-	    if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;
-	    if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;
-	    if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;
-	  }
-	  function d3_geo_pathBuffer() {
-	    var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];
-	    var stream = {
-	      point: point,
-	      lineStart: function() {
-	        stream.point = pointLineStart;
-	      },
-	      lineEnd: lineEnd,
-	      polygonStart: function() {
-	        stream.lineEnd = lineEndPolygon;
-	      },
-	      polygonEnd: function() {
-	        stream.lineEnd = lineEnd;
-	        stream.point = point;
-	      },
-	      pointRadius: function(_) {
-	        pointCircle = d3_geo_pathBufferCircle(_);
-	        return stream;
-	      },
-	      result: function() {
-	        if (buffer.length) {
-	          var result = buffer.join("");
-	          buffer = [];
-	          return result;
-	        }
-	      }
-	    };
-	    function point(x, y) {
-	      buffer.push("M", x, ",", y, pointCircle);
-	    }
-	    function pointLineStart(x, y) {
-	      buffer.push("M", x, ",", y);
-	      stream.point = pointLine;
-	    }
-	    function pointLine(x, y) {
-	      buffer.push("L", x, ",", y);
-	    }
-	    function lineEnd() {
-	      stream.point = point;
-	    }
-	    function lineEndPolygon() {
-	      buffer.push("Z");
-	    }
-	    return stream;
-	  }
-	  function d3_geo_pathBufferCircle(radius) {
-	    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
-	  }
-	  var d3_geo_pathCentroid = {
-	    point: d3_geo_pathCentroidPoint,
-	    lineStart: d3_geo_pathCentroidLineStart,
-	    lineEnd: d3_geo_pathCentroidLineEnd,
-	    polygonStart: function() {
-	      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
-	    },
-	    polygonEnd: function() {
-	      d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
-	      d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
-	      d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
-	    }
-	  };
-	  function d3_geo_pathCentroidPoint(x, y) {
-	    d3_geo_centroidX0 += x;
-	    d3_geo_centroidY0 += y;
-	    ++d3_geo_centroidZ0;
-	  }
-	  function d3_geo_pathCentroidLineStart() {
-	    var x0, y0;
-	    d3_geo_pathCentroid.point = function(x, y) {
-	      d3_geo_pathCentroid.point = nextPoint;
-	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
-	    };
-	    function nextPoint(x, y) {
-	      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
-	      d3_geo_centroidX1 += z * (x0 + x) / 2;
-	      d3_geo_centroidY1 += z * (y0 + y) / 2;
-	      d3_geo_centroidZ1 += z;
-	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
-	    }
-	  }
-	  function d3_geo_pathCentroidLineEnd() {
-	    d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
-	  }
-	  function d3_geo_pathCentroidRingStart() {
-	    var x00, y00, x0, y0;
-	    d3_geo_pathCentroid.point = function(x, y) {
-	      d3_geo_pathCentroid.point = nextPoint;
-	      d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);
-	    };
-	    function nextPoint(x, y) {
-	      var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
-	      d3_geo_centroidX1 += z * (x0 + x) / 2;
-	      d3_geo_centroidY1 += z * (y0 + y) / 2;
-	      d3_geo_centroidZ1 += z;
-	      z = y0 * x - x0 * y;
-	      d3_geo_centroidX2 += z * (x0 + x);
-	      d3_geo_centroidY2 += z * (y0 + y);
-	      d3_geo_centroidZ2 += z * 3;
-	      d3_geo_pathCentroidPoint(x0 = x, y0 = y);
-	    }
-	    d3_geo_pathCentroid.lineEnd = function() {
-	      nextPoint(x00, y00);
-	    };
-	  }
-	  function d3_geo_pathContext(context) {
-	    var pointRadius = 4.5;
-	    var stream = {
-	      point: point,
-	      lineStart: function() {
-	        stream.point = pointLineStart;
-	      },
-	      lineEnd: lineEnd,
-	      polygonStart: function() {
-	        stream.lineEnd = lineEndPolygon;
-	      },
-	      polygonEnd: function() {
-	        stream.lineEnd = lineEnd;
-	        stream.point = point;
-	      },
-	      pointRadius: function(_) {
-	        pointRadius = _;
-	        return stream;
-	      },
-	      result: d3_noop
-	    };
-	    function point(x, y) {
-	      context.moveTo(x + pointRadius, y);
-	      context.arc(x, y, pointRadius, 0, τ);
-	    }
-	    function pointLineStart(x, y) {
-	      context.moveTo(x, y);
-	      stream.point = pointLine;
-	    }
-	    function pointLine(x, y) {
-	      context.lineTo(x, y);
-	    }
-	    function lineEnd() {
-	      stream.point = point;
-	    }
-	    function lineEndPolygon() {
-	      context.closePath();
-	    }
-	    return stream;
-	  }
-	  function d3_geo_resample(project) {
-	    var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;
-	    function resample(stream) {
-	      return (maxDepth ? resampleRecursive : resampleNone)(stream);
-	    }
-	    function resampleNone(stream) {
-	      return d3_geo_transformPoint(stream, function(x, y) {
-	        x = project(x, y);
-	        stream.point(x[0], x[1]);
-	      });
-	    }
-	    function resampleRecursive(stream) {
-	      var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;
-	      var resample = {
-	        point: point,
-	        lineStart: lineStart,
-	        lineEnd: lineEnd,
-	        polygonStart: function() {
-	          stream.polygonStart();
-	          resample.lineStart = ringStart;
-	        },
-	        polygonEnd: function() {
-	          stream.polygonEnd();
-	          resample.lineStart = lineStart;
-	        }
-	      };
-	      function point(x, y) {
-	        x = project(x, y);
-	        stream.point(x[0], x[1]);
-	      }
-	      function lineStart() {
-	        x0 = NaN;
-	        resample.point = linePoint;
-	        stream.lineStart();
-	      }
-	      function linePoint(λ, φ) {
-	        var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
-	        resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
-	        stream.point(x0, y0);
-	      }
-	      function lineEnd() {
-	        resample.point = point;
-	        stream.lineEnd();
-	      }
-	      function ringStart() {
-	        lineStart();
-	        resample.point = ringPoint;
-	        resample.lineEnd = ringEnd;
-	      }
-	      function ringPoint(λ, φ) {
-	        linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
-	        resample.point = linePoint;
-	      }
-	      function ringEnd() {
-	        resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
-	        resample.lineEnd = lineEnd;
-	        lineEnd();
-	      }
-	      return resample;
-	    }
-	    function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
-	      var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
-	      if (d2 > 4 * δ2 && depth--) {
-	        var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
-	        if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
-	          resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
-	          stream.point(x2, y2);
-	          resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
-	        }
-	      }
-	    }
-	    resample.precision = function(_) {
-	      if (!arguments.length) return Math.sqrt(δ2);
-	      maxDepth = (δ2 = _ * _) > 0 && 16;
-	      return resample;
-	    };
-	    return resample;
-	  }
-	  d3.geo.path = function() {
-	    var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;
-	    function path(object) {
-	      if (object) {
-	        if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
-	        if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);
-	        d3.geo.stream(object, cacheStream);
-	      }
-	      return contextStream.result();
-	    }
-	    path.area = function(object) {
-	      d3_geo_pathAreaSum = 0;
-	      d3.geo.stream(object, projectStream(d3_geo_pathArea));
-	      return d3_geo_pathAreaSum;
-	    };
-	    path.centroid = function(object) {
-	      d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
-	      d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
-	      return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];
-	    };
-	    path.bounds = function(object) {
-	      d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);
-	      d3.geo.stream(object, projectStream(d3_geo_pathBounds));
-	      return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];
-	    };
-	    path.projection = function(_) {
-	      if (!arguments.length) return projection;
-	      projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
-	      return reset();
-	    };
-	    path.context = function(_) {
-	      if (!arguments.length) return context;
-	      contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
-	      if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
-	      return reset();
-	    };
-	    path.pointRadius = function(_) {
-	      if (!arguments.length) return pointRadius;
-	      pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
-	      return path;
-	    };
-	    function reset() {
-	      cacheStream = null;
-	      return path;
-	    }
-	    return path.projection(d3.geo.albersUsa()).context(null);
-	  };
-	  function d3_geo_pathProjectStream(project) {
-	    var resample = d3_geo_resample(function(x, y) {
-	      return project([ x * d3_degrees, y * d3_degrees ]);
-	    });
-	    return function(stream) {
-	      return d3_geo_projectionRadians(resample(stream));
-	    };
-	  }
-	  d3.geo.transform = function(methods) {
-	    return {
-	      stream: function(stream) {
-	        var transform = new d3_geo_transform(stream);
-	        for (var k in methods) transform[k] = methods[k];
-	        return transform;
-	      }
-	    };
-	  };
-	  function d3_geo_transform(stream) {
-	    this.stream = stream;
-	  }
-	  d3_geo_transform.prototype = {
-	    point: function(x, y) {
-	      this.stream.point(x, y);
-	    },
-	    sphere: function() {
-	      this.stream.sphere();
-	    },
-	    lineStart: function() {
-	      this.stream.lineStart();
-	    },
-	    lineEnd: function() {
-	      this.stream.lineEnd();
-	    },
-	    polygonStart: function() {
-	      this.stream.polygonStart();
-	    },
-	    polygonEnd: function() {
-	      this.stream.polygonEnd();
-	    }
-	  };
-	  function d3_geo_transformPoint(stream, point) {
-	    return {
-	      point: point,
-	      sphere: function() {
-	        stream.sphere();
-	      },
-	      lineStart: function() {
-	        stream.lineStart();
-	      },
-	      lineEnd: function() {
-	        stream.lineEnd();
-	      },
-	      polygonStart: function() {
-	        stream.polygonStart();
-	      },
-	      polygonEnd: function() {
-	        stream.polygonEnd();
-	      }
-	    };
-	  }
-	  d3.geo.projection = d3_geo_projection;
-	  d3.geo.projectionMutator = d3_geo_projectionMutator;
-	  function d3_geo_projection(project) {
-	    return d3_geo_projectionMutator(function() {
-	      return project;
-	    })();
-	  }
-	  function d3_geo_projectionMutator(projectAt) {
-	    var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
-	      x = project(x, y);
-	      return [ x[0] * k + δx, δy - x[1] * k ];
-	    }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;
-	    function projection(point) {
-	      point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
-	      return [ point[0] * k + δx, δy - point[1] * k ];
-	    }
-	    function invert(point) {
-	      point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
-	      return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
-	    }
-	    projection.stream = function(output) {
-	      if (stream) stream.valid = false;
-	      stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));
-	      stream.valid = true;
-	      return stream;
-	    };
-	    projection.clipAngle = function(_) {
-	      if (!arguments.length) return clipAngle;
-	      preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
-	      return invalidate();
-	    };
-	    projection.clipExtent = function(_) {
-	      if (!arguments.length) return clipExtent;
-	      clipExtent = _;
-	      postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;
-	      return invalidate();
-	    };
-	    projection.scale = function(_) {
-	      if (!arguments.length) return k;
-	      k = +_;
-	      return reset();
-	    };
-	    projection.translate = function(_) {
-	      if (!arguments.length) return [ x, y ];
-	      x = +_[0];
-	      y = +_[1];
-	      return reset();
-	    };
-	    projection.center = function(_) {
-	      if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
-	      λ = _[0] % 360 * d3_radians;
-	      φ = _[1] % 360 * d3_radians;
-	      return reset();
-	    };
-	    projection.rotate = function(_) {
-	      if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
-	      δλ = _[0] % 360 * d3_radians;
-	      δφ = _[1] % 360 * d3_radians;
-	      δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
-	      return reset();
-	    };
-	    d3.rebind(projection, projectResample, "precision");
-	    function reset() {
-	      projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
-	      var center = project(λ, φ);
-	      δx = x - center[0] * k;
-	      δy = y + center[1] * k;
-	      return invalidate();
-	    }
-	    function invalidate() {
-	      if (stream) stream.valid = false, stream = null;
-	      return projection;
-	    }
-	    return function() {
-	      project = projectAt.apply(this, arguments);
-	      projection.invert = project.invert && invert;
-	      return reset();
-	    };
-	  }
-	  function d3_geo_projectionRadians(stream) {
-	    return d3_geo_transformPoint(stream, function(x, y) {
-	      stream.point(x * d3_radians, y * d3_radians);
-	    });
-	  }
-	  function d3_geo_equirectangular(λ, φ) {
-	    return [ λ, φ ];
-	  }
-	  (d3.geo.equirectangular = function() {
-	    return d3_geo_projection(d3_geo_equirectangular);
-	  }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
-	  d3.geo.rotation = function(rotate) {
-	    rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
-	    function forward(coordinates) {
-	      coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
-	      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
-	    }
-	    forward.invert = function(coordinates) {
-	      coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
-	      return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
-	    };
-	    return forward;
-	  };
-	  function d3_geo_identityRotation(λ, φ) {
-	    return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
-	  }
-	  d3_geo_identityRotation.invert = d3_geo_equirectangular;
-	  function d3_geo_rotation(δλ, δφ, δγ) {
-	    return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;
-	  }
-	  function d3_geo_forwardRotationλ(δλ) {
-	    return function(λ, φ) {
-	      return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
-	    };
-	  }
-	  function d3_geo_rotationλ(δλ) {
-	    var rotation = d3_geo_forwardRotationλ(δλ);
-	    rotation.invert = d3_geo_forwardRotationλ(-δλ);
-	    return rotation;
-	  }
-	  function d3_geo_rotationφγ(δφ, δγ) {
-	    var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
-	    function rotation(λ, φ) {
-	      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
-	      return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];
-	    }
-	    rotation.invert = function(λ, φ) {
-	      var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
-	      return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];
-	    };
-	    return rotation;
-	  }
-	  d3.geo.circle = function() {
-	    var origin = [ 0, 0 ], angle, precision = 6, interpolate;
-	    function circle() {
-	      var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
-	      interpolate(null, null, 1, {
-	        point: function(x, y) {
-	          ring.push(x = rotate(x, y));
-	          x[0] *= d3_degrees, x[1] *= d3_degrees;
-	        }
-	      });
-	      return {
-	        type: "Polygon",
-	        coordinates: [ ring ]
-	      };
-	    }
-	    circle.origin = function(x) {
-	      if (!arguments.length) return origin;
-	      origin = x;
-	      return circle;
-	    };
-	    circle.angle = function(x) {
-	      if (!arguments.length) return angle;
-	      interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
-	      return circle;
-	    };
-	    circle.precision = function(_) {
-	      if (!arguments.length) return precision;
-	      interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
-	      return circle;
-	    };
-	    return circle.angle(90);
-	  };
-	  function d3_geo_circleInterpolate(radius, precision) {
-	    var cr = Math.cos(radius), sr = Math.sin(radius);
-	    return function(from, to, direction, listener) {
-	      var step = direction * precision;
-	      if (from != null) {
-	        from = d3_geo_circleAngle(cr, from);
-	        to = d3_geo_circleAngle(cr, to);
-	        if (direction > 0 ? from < to : from > to) from += direction * τ;
-	      } else {
-	        from = radius + direction * τ;
-	        to = radius - .5 * step;
-	      }
-	      for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {
-	        listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
-	      }
-	    };
-	  }
-	  function d3_geo_circleAngle(cr, point) {
-	    var a = d3_geo_cartesian(point);
-	    a[0] -= cr;
-	    d3_geo_cartesianNormalize(a);
-	    var angle = d3_acos(-a[1]);
-	    return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
-	  }
-	  d3.geo.distance = function(a, b) {
-	    var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
-	    return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
-	  };
-	  d3.geo.graticule = function() {
-	    var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
-	    function graticule() {
-	      return {
-	        type: "MultiLineString",
-	        coordinates: lines()
-	      };
-	    }
-	    function lines() {
-	      return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
-	        return abs(x % DX) > ε;
-	      }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
-	        return abs(y % DY) > ε;
-	      }).map(y));
-	    }
-	    graticule.lines = function() {
-	      return lines().map(function(coordinates) {
-	        return {
-	          type: "LineString",
-	          coordinates: coordinates
-	        };
-	      });
-	    };
-	    graticule.outline = function() {
-	      return {
-	        type: "Polygon",
-	        coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
-	      };
-	    };
-	    graticule.extent = function(_) {
-	      if (!arguments.length) return graticule.minorExtent();
-	      return graticule.majorExtent(_).minorExtent(_);
-	    };
-	    graticule.majorExtent = function(_) {
-	      if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
-	      X0 = +_[0][0], X1 = +_[1][0];
-	      Y0 = +_[0][1], Y1 = +_[1][1];
-	      if (X0 > X1) _ = X0, X0 = X1, X1 = _;
-	      if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
-	      return graticule.precision(precision);
-	    };
-	    graticule.minorExtent = function(_) {
-	      if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
-	      x0 = +_[0][0], x1 = +_[1][0];
-	      y0 = +_[0][1], y1 = +_[1][1];
-	      if (x0 > x1) _ = x0, x0 = x1, x1 = _;
-	      if (y0 > y1) _ = y0, y0 = y1, y1 = _;
-	      return graticule.precision(precision);
-	    };
-	    graticule.step = function(_) {
-	      if (!arguments.length) return graticule.minorStep();
-	      return graticule.majorStep(_).minorStep(_);
-	    };
-	    graticule.majorStep = function(_) {
-	      if (!arguments.length) return [ DX, DY ];
-	      DX = +_[0], DY = +_[1];
-	      return graticule;
-	    };
-	    graticule.minorStep = function(_) {
-	      if (!arguments.length) return [ dx, dy ];
-	      dx = +_[0], dy = +_[1];
-	      return graticule;
-	    };
-	    graticule.precision = function(_) {
-	      if (!arguments.length) return precision;
-	      precision = +_;
-	      x = d3_geo_graticuleX(y0, y1, 90);
-	      y = d3_geo_graticuleY(x0, x1, precision);
-	      X = d3_geo_graticuleX(Y0, Y1, 90);
-	      Y = d3_geo_graticuleY(X0, X1, precision);
-	      return graticule;
-	    };
-	    return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
-	  };
-	  function d3_geo_graticuleX(y0, y1, dy) {
-	    var y = d3.range(y0, y1 - ε, dy).concat(y1);
-	    return function(x) {
-	      return y.map(function(y) {
-	        return [ x, y ];
-	      });
-	    };
-	  }
-	  function d3_geo_graticuleY(x0, x1, dx) {
-	    var x = d3.range(x0, x1 - ε, dx).concat(x1);
-	    return function(y) {
-	      return x.map(function(x) {
-	        return [ x, y ];
-	      });
-	    };
-	  }
-	  function d3_source(d) {
-	    return d.source;
-	  }
-	  function d3_target(d) {
-	    return d.target;
-	  }
-	  d3.geo.greatArc = function() {
-	    var source = d3_source, source_, target = d3_target, target_;
-	    function greatArc() {
-	      return {
-	        type: "LineString",
-	        coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
-	      };
-	    }
-	    greatArc.distance = function() {
-	      return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
-	    };
-	    greatArc.source = function(_) {
-	      if (!arguments.length) return source;
-	      source = _, source_ = typeof _ === "function" ? null : _;
-	      return greatArc;
-	    };
-	    greatArc.target = function(_) {
-	      if (!arguments.length) return target;
-	      target = _, target_ = typeof _ === "function" ? null : _;
-	      return greatArc;
-	    };
-	    greatArc.precision = function() {
-	      return arguments.length ? greatArc : 0;
-	    };
-	    return greatArc;
-	  };
-	  d3.geo.interpolate = function(source, target) {
-	    return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
-	  };
-	  function d3_geo_interpolate(x0, y0, x1, y1) {
-	    var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
-	    var interpolate = d ? function(t) {
-	      var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
-	      return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
-	    } : function() {
-	      return [ x0 * d3_degrees, y0 * d3_degrees ];
-	    };
-	    interpolate.distance = d;
-	    return interpolate;
-	  }
-	  d3.geo.length = function(object) {
-	    d3_geo_lengthSum = 0;
-	    d3.geo.stream(object, d3_geo_length);
-	    return d3_geo_lengthSum;
-	  };
-	  var d3_geo_lengthSum;
-	  var d3_geo_length = {
-	    sphere: d3_noop,
-	    point: d3_noop,
-	    lineStart: d3_geo_lengthLineStart,
-	    lineEnd: d3_noop,
-	    polygonStart: d3_noop,
-	    polygonEnd: d3_noop
-	  };
-	  function d3_geo_lengthLineStart() {
-	    var λ0, sinφ0, cosφ0;
-	    d3_geo_length.point = function(λ, φ) {
-	      λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
-	      d3_geo_length.point = nextPoint;
-	    };
-	    d3_geo_length.lineEnd = function() {
-	      d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
-	    };
-	    function nextPoint(λ, φ) {
-	      var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
-	      d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
-	      λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
-	    }
-	  }
-	  function d3_geo_azimuthal(scale, angle) {
-	    function azimuthal(λ, φ) {
-	      var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
-	      return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
-	    }
-	    azimuthal.invert = function(x, y) {
-	      var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
-	      return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
-	    };
-	    return azimuthal;
-	  }
-	  var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
-	    return Math.sqrt(2 / (1 + cosλcosφ));
-	  }, function(ρ) {
-	    return 2 * Math.asin(ρ / 2);
-	  });
-	  (d3.geo.azimuthalEqualArea = function() {
-	    return d3_geo_projection(d3_geo_azimuthalEqualArea);
-	  }).raw = d3_geo_azimuthalEqualArea;
-	  var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
-	    var c = Math.acos(cosλcosφ);
-	    return c && c / Math.sin(c);
-	  }, d3_identity);
-	  (d3.geo.azimuthalEquidistant = function() {
-	    return d3_geo_projection(d3_geo_azimuthalEquidistant);
-	  }).raw = d3_geo_azimuthalEquidistant;
-	  function d3_geo_conicConformal(φ0, φ1) {
-	    var cosφ0 = Math.cos(φ0), t = function(φ) {
-	      return Math.tan(π / 4 + φ / 2);
-	    }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
-	    if (!n) return d3_geo_mercator;
-	    function forward(λ, φ) {
-	      if (F > 0) {
-	        if (φ < -halfπ + ε) φ = -halfπ + ε;
-	      } else {
-	        if (φ > halfπ - ε) φ = halfπ - ε;
-	      }
-	      var ρ = F / Math.pow(t(φ), n);
-	      return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
-	    }
-	    forward.invert = function(x, y) {
-	      var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
-	      return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];
-	    };
-	    return forward;
-	  }
-	  (d3.geo.conicConformal = function() {
-	    return d3_geo_conic(d3_geo_conicConformal);
-	  }).raw = d3_geo_conicConformal;
-	  function d3_geo_conicEquidistant(φ0, φ1) {
-	    var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
-	    if (abs(n) < ε) return d3_geo_equirectangular;
-	    function forward(λ, φ) {
-	      var ρ = G - φ;
-	      return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
-	    }
-	    forward.invert = function(x, y) {
-	      var ρ0_y = G - y;
-	      return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
-	    };
-	    return forward;
-	  }
-	  (d3.geo.conicEquidistant = function() {
-	    return d3_geo_conic(d3_geo_conicEquidistant);
-	  }).raw = d3_geo_conicEquidistant;
-	  var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
-	    return 1 / cosλcosφ;
-	  }, Math.atan);
-	  (d3.geo.gnomonic = function() {
-	    return d3_geo_projection(d3_geo_gnomonic);
-	  }).raw = d3_geo_gnomonic;
-	  function d3_geo_mercator(λ, φ) {
-	    return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
-	  }
-	  d3_geo_mercator.invert = function(x, y) {
-	    return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];
-	  };
-	  function d3_geo_mercatorProjection(project) {
-	    var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
-	    m.scale = function() {
-	      var v = scale.apply(m, arguments);
-	      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
-	    };
-	    m.translate = function() {
-	      var v = translate.apply(m, arguments);
-	      return v === m ? clipAuto ? m.clipExtent(null) : m : v;
-	    };
-	    m.clipExtent = function(_) {
-	      var v = clipExtent.apply(m, arguments);
-	      if (v === m) {
-	        if (clipAuto = _ == null) {
-	          var k = π * scale(), t = translate();
-	          clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
-	        }
-	      } else if (clipAuto) {
-	        v = null;
-	      }
-	      return v;
-	    };
-	    return m.clipExtent(null);
-	  }
-	  (d3.geo.mercator = function() {
-	    return d3_geo_mercatorProjection(d3_geo_mercator);
-	  }).raw = d3_geo_mercator;
-	  var d3_geo_orthographic = d3_geo_azimuthal(function() {
-	    return 1;
-	  }, Math.asin);
-	  (d3.geo.orthographic = function() {
-	    return d3_geo_projection(d3_geo_orthographic);
-	  }).raw = d3_geo_orthographic;
-	  var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
-	    return 1 / (1 + cosλcosφ);
-	  }, function(ρ) {
-	    return 2 * Math.atan(ρ);
-	  });
-	  (d3.geo.stereographic = function() {
-	    return d3_geo_projection(d3_geo_stereographic);
-	  }).raw = d3_geo_stereographic;
-	  function d3_geo_transverseMercator(λ, φ) {
-	    return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];
-	  }
-	  d3_geo_transverseMercator.invert = function(x, y) {
-	    return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];
-	  };
-	  (d3.geo.transverseMercator = function() {
-	    var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;
-	    projection.center = function(_) {
-	      return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);
-	    };
-	    projection.rotate = function(_) {
-	      return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(), 
-	      [ _[0], _[1], _[2] - 90 ]);
-	    };
-	    return rotate([ 0, 0, 90 ]);
-	  }).raw = d3_geo_transverseMercator;
-	  d3.geom = {};
-	  function d3_geom_pointX(d) {
-	    return d[0];
-	  }
-	  function d3_geom_pointY(d) {
-	    return d[1];
-	  }
-	  d3.geom.hull = function(vertices) {
-	    var x = d3_geom_pointX, y = d3_geom_pointY;
-	    if (arguments.length) return hull(vertices);
-	    function hull(data) {
-	      if (data.length < 3) return [];
-	      var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];
-	      for (i = 0; i < n; i++) {
-	        points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);
-	      }
-	      points.sort(d3_geom_hullOrder);
-	      for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);
-	      var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);
-	      var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];
-	      for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);
-	      for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);
-	      return polygon;
-	    }
-	    hull.x = function(_) {
-	      return arguments.length ? (x = _, hull) : x;
-	    };
-	    hull.y = function(_) {
-	      return arguments.length ? (y = _, hull) : y;
-	    };
-	    return hull;
-	  };
-	  function d3_geom_hullUpper(points) {
-	    var n = points.length, hull = [ 0, 1 ], hs = 2;
-	    for (var i = 2; i < n; i++) {
-	      while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;
-	      hull[hs++] = i;
-	    }
-	    return hull.slice(0, hs);
-	  }
-	  function d3_geom_hullOrder(a, b) {
-	    return a[0] - b[0] || a[1] - b[1];
-	  }
-	  d3.geom.polygon = function(coordinates) {
-	    d3_subclass(coordinates, d3_geom_polygonPrototype);
-	    return coordinates;
-	  };
-	  var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];
-	  d3_geom_polygonPrototype.area = function() {
-	    var i = -1, n = this.length, a, b = this[n - 1], area = 0;
-	    while (++i < n) {
-	      a = b;
-	      b = this[i];
-	      area += a[1] * b[0] - a[0] * b[1];
-	    }
-	    return area * .5;
-	  };
-	  d3_geom_polygonPrototype.centroid = function(k) {
-	    var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;
-	    if (!arguments.length) k = -1 / (6 * this.area());
-	    while (++i < n) {
-	      a = b;
-	      b = this[i];
-	      c = a[0] * b[1] - b[0] * a[1];
-	      x += (a[0] + b[0]) * c;
-	      y += (a[1] + b[1]) * c;
-	    }
-	    return [ x * k, y * k ];
-	  };
-	  d3_geom_polygonPrototype.clip = function(subject) {
-	    var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;
-	    while (++i < n) {
-	      input = subject.slice();
-	      subject.length = 0;
-	      b = this[i];
-	      c = input[(m = input.length - closed) - 1];
-	      j = -1;
-	      while (++j < m) {
-	        d = input[j];
-	        if (d3_geom_polygonInside(d, a, b)) {
-	          if (!d3_geom_polygonInside(c, a, b)) {
-	            subject.push(d3_geom_polygonIntersect(c, d, a, b));
-	          }
-	          subject.push(d);
-	        } else if (d3_geom_polygonInside(c, a, b)) {
-	          subject.push(d3_geom_polygonIntersect(c, d, a, b));
-	        }
-	        c = d;
-	      }
-	      if (closed) subject.push(subject[0]);
-	      a = b;
-	    }
-	    return subject;
-	  };
-	  function d3_geom_polygonInside(p, a, b) {
-	    return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
-	  }
-	  function d3_geom_polygonIntersect(c, d, a, b) {
-	    var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
-	    return [ x1 + ua * x21, y1 + ua * y21 ];
-	  }
-	  function d3_geom_polygonClosed(coordinates) {
-	    var a = coordinates[0], b = coordinates[coordinates.length - 1];
-	    return !(a[0] - b[0] || a[1] - b[1]);
-	  }
-	  var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];
-	  function d3_geom_voronoiBeach() {
-	    d3_geom_voronoiRedBlackNode(this);
-	    this.edge = this.site = this.circle = null;
-	  }
-	  function d3_geom_voronoiCreateBeach(site) {
-	    var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();
-	    beach.site = site;
-	    return beach;
-	  }
-	  function d3_geom_voronoiDetachBeach(beach) {
-	    d3_geom_voronoiDetachCircle(beach);
-	    d3_geom_voronoiBeaches.remove(beach);
-	    d3_geom_voronoiBeachPool.push(beach);
-	    d3_geom_voronoiRedBlackNode(beach);
-	  }
-	  function d3_geom_voronoiRemoveBeach(beach) {
-	    var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {
-	      x: x,
-	      y: y
-	    }, previous = beach.P, next = beach.N, disappearing = [ beach ];
-	    d3_geom_voronoiDetachBeach(beach);
-	    var lArc = previous;
-	    while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {
-	      previous = lArc.P;
-	      disappearing.unshift(lArc);
-	      d3_geom_voronoiDetachBeach(lArc);
-	      lArc = previous;
-	    }
-	    disappearing.unshift(lArc);
-	    d3_geom_voronoiDetachCircle(lArc);
-	    var rArc = next;
-	    while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {
-	      next = rArc.N;
-	      disappearing.push(rArc);
-	      d3_geom_voronoiDetachBeach(rArc);
-	      rArc = next;
-	    }
-	    disappearing.push(rArc);
-	    d3_geom_voronoiDetachCircle(rArc);
-	    var nArcs = disappearing.length, iArc;
-	    for (iArc = 1; iArc < nArcs; ++iArc) {
-	      rArc = disappearing[iArc];
-	      lArc = disappearing[iArc - 1];
-	      d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
-	    }
-	    lArc = disappearing[0];
-	    rArc = disappearing[nArcs - 1];
-	    rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);
-	    d3_geom_voronoiAttachCircle(lArc);
-	    d3_geom_voronoiAttachCircle(rArc);
-	  }
-	  function d3_geom_voronoiAddBeach(site) {
-	    var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;
-	    while (node) {
-	      dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;
-	      if (dxl > ε) node = node.L; else {
-	        dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);
-	        if (dxr > ε) {
-	          if (!node.R) {
-	            lArc = node;
-	            break;
-	          }
-	          node = node.R;
-	        } else {
-	          if (dxl > -ε) {
-	            lArc = node.P;
-	            rArc = node;
-	          } else if (dxr > -ε) {
-	            lArc = node;
-	            rArc = node.N;
-	          } else {
-	            lArc = rArc = node;
-	          }
-	          break;
-	        }
-	      }
-	    }
-	    var newArc = d3_geom_voronoiCreateBeach(site);
-	    d3_geom_voronoiBeaches.insert(lArc, newArc);
-	    if (!lArc && !rArc) return;
-	    if (lArc === rArc) {
-	      d3_geom_voronoiDetachCircle(lArc);
-	      rArc = d3_geom_voronoiCreateBeach(lArc.site);
-	      d3_geom_voronoiBeaches.insert(newArc, rArc);
-	      newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
-	      d3_geom_voronoiAttachCircle(lArc);
-	      d3_geom_voronoiAttachCircle(rArc);
-	      return;
-	    }
-	    if (!rArc) {
-	      newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
-	      return;
-	    }
-	    d3_geom_voronoiDetachCircle(lArc);
-	    d3_geom_voronoiDetachCircle(rArc);
-	    var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {
-	      x: (cy * hb - by * hc) / d + ax,
-	      y: (bx * hc - cx * hb) / d + ay
-	    };
-	    d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);
-	    newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);
-	    rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);
-	    d3_geom_voronoiAttachCircle(lArc);
-	    d3_geom_voronoiAttachCircle(rArc);
-	  }
-	  function d3_geom_voronoiLeftBreakPoint(arc, directrix) {
-	    var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;
-	    if (!pby2) return rfocx;
-	    var lArc = arc.P;
-	    if (!lArc) return -Infinity;
-	    site = lArc.site;
-	    var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;
-	    if (!plby2) return lfocx;
-	    var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;
-	    if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
-	    return (rfocx + lfocx) / 2;
-	  }
-	  function d3_geom_voronoiRightBreakPoint(arc, directrix) {
-	    var rArc = arc.N;
-	    if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);
-	    var site = arc.site;
-	    return site.y === directrix ? site.x : Infinity;
-	  }
-	  function d3_geom_voronoiCell(site) {
-	    this.site = site;
-	    this.edges = [];
-	  }
-	  d3_geom_voronoiCell.prototype.prepare = function() {
-	    var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;
-	    while (iHalfEdge--) {
-	      edge = halfEdges[iHalfEdge].edge;
-	      if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);
-	    }
-	    halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);
-	    return halfEdges.length;
-	  };
-	  function d3_geom_voronoiCloseCells(extent) {
-	    var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;
-	    while (iCell--) {
-	      cell = cells[iCell];
-	      if (!cell || !cell.prepare()) continue;
-	      halfEdges = cell.edges;
-	      nHalfEdges = halfEdges.length;
-	      iHalfEdge = 0;
-	      while (iHalfEdge < nHalfEdges) {
-	        end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;
-	        start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;
-	        if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {
-	          halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {
-	            x: x0,
-	            y: abs(x2 - x0) < ε ? y2 : y1
-	          } : abs(y3 - y1) < ε && x1 - x3 > ε ? {
-	            x: abs(y2 - y1) < ε ? x2 : x1,
-	            y: y1
-	          } : abs(x3 - x1) < ε && y3 - y0 > ε ? {
-	            x: x1,
-	            y: abs(x2 - x1) < ε ? y2 : y0
-	          } : abs(y3 - y0) < ε && x3 - x0 > ε ? {
-	            x: abs(y2 - y0) < ε ? x2 : x0,
-	            y: y0
-	          } : null), cell.site, null));
-	          ++nHalfEdges;
-	        }
-	      }
-	    }
-	  }
-	  function d3_geom_voronoiHalfEdgeOrder(a, b) {
-	    return b.angle - a.angle;
-	  }
-	  function d3_geom_voronoiCircle() {
-	    d3_geom_voronoiRedBlackNode(this);
-	    this.x = this.y = this.arc = this.site = this.cy = null;
-	  }
-	  function d3_geom_voronoiAttachCircle(arc) {
-	    var lArc = arc.P, rArc = arc.N;
-	    if (!lArc || !rArc) return;
-	    var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;
-	    if (lSite === rSite) return;
-	    var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;
-	    var d = 2 * (ax * cy - ay * cx);
-	    if (d >= -ε2) return;
-	    var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;
-	    var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();
-	    circle.arc = arc;
-	    circle.site = cSite;
-	    circle.x = x + bx;
-	    circle.y = cy + Math.sqrt(x * x + y * y);
-	    circle.cy = cy;
-	    arc.circle = circle;
-	    var before = null, node = d3_geom_voronoiCircles._;
-	    while (node) {
-	      if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {
-	        if (node.L) node = node.L; else {
-	          before = node.P;
-	          break;
-	        }
-	      } else {
-	        if (node.R) node = node.R; else {
-	          before = node;
-	          break;
-	        }
-	      }
-	    }
-	    d3_geom_voronoiCircles.insert(before, circle);
-	    if (!before) d3_geom_voronoiFirstCircle = circle;
-	  }
-	  function d3_geom_voronoiDetachCircle(arc) {
-	    var circle = arc.circle;
-	    if (circle) {
-	      if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;
-	      d3_geom_voronoiCircles.remove(circle);
-	      d3_geom_voronoiCirclePool.push(circle);
-	      d3_geom_voronoiRedBlackNode(circle);
-	      arc.circle = null;
-	    }
-	  }
-	  function d3_geom_voronoiClipEdges(extent) {
-	    var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;
-	    while (i--) {
-	      e = edges[i];
-	      if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {
-	        e.a = e.b = null;
-	        edges.splice(i, 1);
-	      }
-	    }
-	  }
-	  function d3_geom_voronoiConnectEdge(edge, extent) {
-	    var vb = edge.b;
-	    if (vb) return true;
-	    var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;
-	    if (ry === ly) {
-	      if (fx < x0 || fx >= x1) return;
-	      if (lx > rx) {
-	        if (!va) va = {
-	          x: fx,
-	          y: y0
-	        }; else if (va.y >= y1) return;
-	        vb = {
-	          x: fx,
-	          y: y1
-	        };
-	      } else {
-	        if (!va) va = {
-	          x: fx,
-	          y: y1
-	        }; else if (va.y < y0) return;
-	        vb = {
-	          x: fx,
-	          y: y0
-	        };
-	      }
-	    } else {
-	      fm = (lx - rx) / (ry - ly);
-	      fb = fy - fm * fx;
-	      if (fm < -1 || fm > 1) {
-	        if (lx > rx) {
-	          if (!va) va = {
-	            x: (y0 - fb) / fm,
-	            y: y0
-	          }; else if (va.y >= y1) return;
-	          vb = {
-	            x: (y1 - fb) / fm,
-	            y: y1
-	          };
-	        } else {
-	          if (!va) va = {
-	            x: (y1 - fb) / fm,
-	            y: y1
-	          }; else if (va.y < y0) return;
-	          vb = {
-	            x: (y0 - fb) / fm,
-	            y: y0
-	          };
-	        }
-	      } else {
-	        if (ly < ry) {
-	          if (!va) va = {
-	            x: x0,
-	            y: fm * x0 + fb
-	          }; else if (va.x >= x1) return;
-	          vb = {
-	            x: x1,
-	            y: fm * x1 + fb
-	          };
-	        } else {
-	          if (!va) va = {
-	            x: x1,
-	            y: fm * x1 + fb
-	          }; else if (va.x < x0) return;
-	          vb = {
-	            x: x0,
-	            y: fm * x0 + fb
-	          };
-	        }
-	      }
-	    }
-	    edge.a = va;
-	    edge.b = vb;
-	    return true;
-	  }
-	  function d3_geom_voronoiEdge(lSite, rSite) {
-	    this.l = lSite;
-	    this.r = rSite;
-	    this.a = this.b = null;
-	  }
-	  function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {
-	    var edge = new d3_geom_voronoiEdge(lSite, rSite);
-	    d3_geom_voronoiEdges.push(edge);
-	    if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);
-	    if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);
-	    d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));
-	    d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));
-	    return edge;
-	  }
-	  function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {
-	    var edge = new d3_geom_voronoiEdge(lSite, null);
-	    edge.a = va;
-	    edge.b = vb;
-	    d3_geom_voronoiEdges.push(edge);
-	    return edge;
-	  }
-	  function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {
-	    if (!edge.a && !edge.b) {
-	      edge.a = vertex;
-	      edge.l = lSite;
-	      edge.r = rSite;
-	    } else if (edge.l === rSite) {
-	      edge.b = vertex;
-	    } else {
-	      edge.a = vertex;
-	    }
-	  }
-	  function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {
-	    var va = edge.a, vb = edge.b;
-	    this.edge = edge;
-	    this.site = lSite;
-	    this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);
-	  }
-	  d3_geom_voronoiHalfEdge.prototype = {
-	    start: function() {
-	      return this.edge.l === this.site ? this.edge.a : this.edge.b;
-	    },
-	    end: function() {
-	      return this.edge.l === this.site ? this.edge.b : this.edge.a;
-	    }
-	  };
-	  function d3_geom_voronoiRedBlackTree() {
-	    this._ = null;
-	  }
-	  function d3_geom_voronoiRedBlackNode(node) {
-	    node.U = node.C = node.L = node.R = node.P = node.N = null;
-	  }
-	  d3_geom_voronoiRedBlackTree.prototype = {
-	    insert: function(after, node) {
-	      var parent, grandpa, uncle;
-	      if (after) {
-	        node.P = after;
-	        node.N = after.N;
-	        if (after.N) after.N.P = node;
-	        after.N = node;
-	        if (after.R) {
-	          after = after.R;
-	          while (after.L) after = after.L;
-	          after.L = node;
-	        } else {
-	          after.R = node;
-	        }
-	        parent = after;
-	      } else if (this._) {
-	        after = d3_geom_voronoiRedBlackFirst(this._);
-	        node.P = null;
-	        node.N = after;
-	        after.P = after.L = node;
-	        parent = after;
-	      } else {
-	        node.P = node.N = null;
-	        this._ = node;
-	        parent = null;
-	      }
-	      node.L = node.R = null;
-	      node.U = parent;
-	      node.C = true;
-	      after = node;
-	      while (parent && parent.C) {
-	        grandpa = parent.U;
-	        if (parent === grandpa.L) {
-	          uncle = grandpa.R;
-	          if (uncle && uncle.C) {
-	            parent.C = uncle.C = false;
-	            grandpa.C = true;
-	            after = grandpa;
-	          } else {
-	            if (after === parent.R) {
-	              d3_geom_voronoiRedBlackRotateLeft(this, parent);
-	              after = parent;
-	              parent = after.U;
-	            }
-	            parent.C = false;
-	            grandpa.C = true;
-	            d3_geom_voronoiRedBlackRotateRight(this, grandpa);
-	          }
-	        } else {
-	          uncle = grandpa.L;
-	          if (uncle && uncle.C) {
-	            parent.C = uncle.C = false;
-	            grandpa.C = true;
-	            after = grandpa;
-	          } else {
-	            if (after === parent.L) {
-	              d3_geom_voronoiRedBlackRotateRight(this, parent);
-	              after = parent;
-	              parent = after.U;
-	            }
-	            parent.C = false;
-	            grandpa.C = true;
-	            d3_geom_voronoiRedBlackRotateLeft(this, grandpa);
-	          }
-	        }
-	        parent = after.U;
-	      }
-	      this._.C = false;
-	    },
-	    remove: function(node) {
-	      if (node.N) node.N.P = node.P;
-	      if (node.P) node.P.N = node.N;
-	      node.N = node.P = null;
-	      var parent = node.U, sibling, left = node.L, right = node.R, next, red;
-	      if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);
-	      if (parent) {
-	        if (parent.L === node) parent.L = next; else parent.R = next;
-	      } else {
-	        this._ = next;
-	      }
-	      if (left && right) {
-	        red = next.C;
-	        next.C = node.C;
-	        next.L = left;
-	        left.U = next;
-	        if (next !== right) {
-	          parent = next.U;
-	          next.U = node.U;
-	          node = next.R;
-	          parent.L = node;
-	          next.R = right;
-	          right.U = next;
-	        } else {
-	          next.U = parent;
-	          parent = next;
-	          node = next.R;
-	        }
-	      } else {
-	        red = node.C;
-	        node = next;
-	      }
-	      if (node) node.U = parent;
-	      if (red) return;
-	      if (node && node.C) {
-	        node.C = false;
-	        return;
-	      }
-	      do {
-	        if (node === this._) break;
-	        if (node === parent.L) {
-	          sibling = parent.R;
-	          if (sibling.C) {
-	            sibling.C = false;
-	            parent.C = true;
-	            d3_geom_voronoiRedBlackRotateLeft(this, parent);
-	            sibling = parent.R;
-	          }
-	          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
-	            if (!sibling.R || !sibling.R.C) {
-	              sibling.L.C = false;
-	              sibling.C = true;
-	              d3_geom_voronoiRedBlackRotateRight(this, sibling);
-	              sibling = parent.R;
-	            }
-	            sibling.C = parent.C;
-	            parent.C = sibling.R.C = false;
-	            d3_geom_voronoiRedBlackRotateLeft(this, parent);
-	            node = this._;
-	            break;
-	          }
-	        } else {
-	          sibling = parent.L;
-	          if (sibling.C) {
-	            sibling.C = false;
-	            parent.C = true;
-	            d3_geom_voronoiRedBlackRotateRight(this, parent);
-	            sibling = parent.L;
-	          }
-	          if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
-	            if (!sibling.L || !sibling.L.C) {
-	              sibling.R.C = false;
-	              sibling.C = true;
-	              d3_geom_voronoiRedBlackRotateLeft(this, sibling);
-	              sibling = parent.L;
-	            }
-	            sibling.C = parent.C;
-	            parent.C = sibling.L.C = false;
-	            d3_geom_voronoiRedBlackRotateRight(this, parent);
-	            node = this._;
-	            break;
-	          }
-	        }
-	        sibling.C = true;
-	        node = parent;
-	        parent = parent.U;
-	      } while (!node.C);
-	      if (node) node.C = false;
-	    }
-	  };
-	  function d3_geom_voronoiRedBlackRotateLeft(tree, node) {
-	    var p = node, q = node.R, parent = p.U;
-	    if (parent) {
-	      if (parent.L === p) parent.L = q; else parent.R = q;
-	    } else {
-	      tree._ = q;
-	    }
-	    q.U = parent;
-	    p.U = q;
-	    p.R = q.L;
-	    if (p.R) p.R.U = p;
-	    q.L = p;
-	  }
-	  function d3_geom_voronoiRedBlackRotateRight(tree, node) {
-	    var p = node, q = node.L, parent = p.U;
-	    if (parent) {
-	      if (parent.L === p) parent.L = q; else parent.R = q;
-	    } else {
-	      tree._ = q;
-	    }
-	    q.U = parent;
-	    p.U = q;
-	    p.L = q.R;
-	    if (p.L) p.L.U = p;
-	    q.R = p;
-	  }
-	  function d3_geom_voronoiRedBlackFirst(node) {
-	    while (node.L) node = node.L;
-	    return node;
-	  }
-	  function d3_geom_voronoi(sites, bbox) {
-	    var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;
-	    d3_geom_voronoiEdges = [];
-	    d3_geom_voronoiCells = new Array(sites.length);
-	    d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();
-	    d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();
-	    while (true) {
-	      circle = d3_geom_voronoiFirstCircle;
-	      if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {
-	        if (site.x !== x0 || site.y !== y0) {
-	          d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);
-	          d3_geom_voronoiAddBeach(site);
-	          x0 = site.x, y0 = site.y;
-	        }
-	        site = sites.pop();
-	      } else if (circle) {
-	        d3_geom_voronoiRemoveBeach(circle.arc);
-	      } else {
-	        break;
-	      }
-	    }
-	    if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);
-	    var diagram = {
-	      cells: d3_geom_voronoiCells,
-	      edges: d3_geom_voronoiEdges
-	    };
-	    d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;
-	    return diagram;
-	  }
-	  function d3_geom_voronoiVertexOrder(a, b) {
-	    return b.y - a.y || b.x - a.x;
-	  }
-	  d3.geom.voronoi = function(points) {
-	    var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;
-	    if (points) return voronoi(points);
-	    function voronoi(data) {
-	      var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];
-	      d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {
-	        var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {
-	          var s = e.start();
-	          return [ s.x, s.y ];
-	        }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];
-	        polygon.point = data[i];
-	      });
-	      return polygons;
-	    }
-	    function sites(data) {
-	      return data.map(function(d, i) {
-	        return {
-	          x: Math.round(fx(d, i) / ε) * ε,
-	          y: Math.round(fy(d, i) / ε) * ε,
-	          i: i
-	        };
-	      });
-	    }
-	    voronoi.links = function(data) {
-	      return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {
-	        return edge.l && edge.r;
-	      }).map(function(edge) {
-	        return {
-	          source: data[edge.l.i],
-	          target: data[edge.r.i]
-	        };
-	      });
-	    };
-	    voronoi.triangles = function(data) {
-	      var triangles = [];
-	      d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {
-	        var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;
-	        while (++j < m) {
-	          e0 = e1;
-	          s0 = s1;
-	          e1 = edges[j].edge;
-	          s1 = e1.l === site ? e1.r : e1.l;
-	          if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {
-	            triangles.push([ data[i], data[s0.i], data[s1.i] ]);
-	          }
-	        }
-	      });
-	      return triangles;
-	    };
-	    voronoi.x = function(_) {
-	      return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;
-	    };
-	    voronoi.y = function(_) {
-	      return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;
-	    };
-	    voronoi.clipExtent = function(_) {
-	      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;
-	      clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;
-	      return voronoi;
-	    };
-	    voronoi.size = function(_) {
-	      if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];
-	      return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);
-	    };
-	    return voronoi;
-	  };
-	  var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];
-	  function d3_geom_voronoiTriangleArea(a, b, c) {
-	    return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);
-	  }
-	  d3.geom.delaunay = function(vertices) {
-	    return d3.geom.voronoi().triangles(vertices);
-	  };
-	  d3.geom.quadtree = function(points, x1, y1, x2, y2) {
-	    var x = d3_geom_pointX, y = d3_geom_pointY, compat;
-	    if (compat = arguments.length) {
-	      x = d3_geom_quadtreeCompatX;
-	      y = d3_geom_quadtreeCompatY;
-	      if (compat === 3) {
-	        y2 = y1;
-	        x2 = x1;
-	        y1 = x1 = 0;
-	      }
-	      return quadtree(points);
-	    }
-	    function quadtree(data) {
-	      var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
-	      if (x1 != null) {
-	        x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
-	      } else {
-	        x2_ = y2_ = -(x1_ = y1_ = Infinity);
-	        xs = [], ys = [];
-	        n = data.length;
-	        if (compat) for (i = 0; i < n; ++i) {
-	          d = data[i];
-	          if (d.x < x1_) x1_ = d.x;
-	          if (d.y < y1_) y1_ = d.y;
-	          if (d.x > x2_) x2_ = d.x;
-	          if (d.y > y2_) y2_ = d.y;
-	          xs.push(d.x);
-	          ys.push(d.y);
-	        } else for (i = 0; i < n; ++i) {
-	          var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
-	          if (x_ < x1_) x1_ = x_;
-	          if (y_ < y1_) y1_ = y_;
-	          if (x_ > x2_) x2_ = x_;
-	          if (y_ > y2_) y2_ = y_;
-	          xs.push(x_);
-	          ys.push(y_);
-	        }
-	      }
-	      var dx = x2_ - x1_, dy = y2_ - y1_;
-	      if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
-	      function insert(n, d, x, y, x1, y1, x2, y2) {
-	        if (isNaN(x) || isNaN(y)) return;
-	        if (n.leaf) {
-	          var nx = n.x, ny = n.y;
-	          if (nx != null) {
-	            if (abs(nx - x) + abs(ny - y) < .01) {
-	              insertChild(n, d, x, y, x1, y1, x2, y2);
-	            } else {
-	              var nPoint = n.point;
-	              n.x = n.y = n.point = null;
-	              insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
-	              insertChild(n, d, x, y, x1, y1, x2, y2);
-	            }
-	          } else {
-	            n.x = x, n.y = y, n.point = d;
-	          }
-	        } else {
-	          insertChild(n, d, x, y, x1, y1, x2, y2);
-	        }
-	      }
-	      function insertChild(n, d, x, y, x1, y1, x2, y2) {
-	        var xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym, i = below << 1 | right;
-	        n.leaf = false;
-	        n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
-	        if (right) x1 = xm; else x2 = xm;
-	        if (below) y1 = ym; else y2 = ym;
-	        insert(n, d, x, y, x1, y1, x2, y2);
-	      }
-	      var root = d3_geom_quadtreeNode();
-	      root.add = function(d) {
-	        insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
-	      };
-	      root.visit = function(f) {
-	        d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
-	      };
-	      root.find = function(point) {
-	        return d3_geom_quadtreeFind(root, point[0], point[1], x1_, y1_, x2_, y2_);
-	      };
-	      i = -1;
-	      if (x1 == null) {
-	        while (++i < n) {
-	          insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
-	        }
-	        --i;
-	      } else data.forEach(root.add);
-	      xs = ys = data = d = null;
-	      return root;
-	    }
-	    quadtree.x = function(_) {
-	      return arguments.length ? (x = _, quadtree) : x;
-	    };
-	    quadtree.y = function(_) {
-	      return arguments.length ? (y = _, quadtree) : y;
-	    };
-	    quadtree.extent = function(_) {
-	      if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];
-	      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0], 
-	      y2 = +_[1][1];
-	      return quadtree;
-	    };
-	    quadtree.size = function(_) {
-	      if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];
-	      if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];
-	      return quadtree;
-	    };
-	    return quadtree;
-	  };
-	  function d3_geom_quadtreeCompatX(d) {
-	    return d.x;
-	  }
-	  function d3_geom_quadtreeCompatY(d) {
-	    return d.y;
-	  }
-	  function d3_geom_quadtreeNode() {
-	    return {
-	      leaf: true,
-	      nodes: [],
-	      point: null,
-	      x: null,
-	      y: null
-	    };
-	  }
-	  function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
-	    if (!f(node, x1, y1, x2, y2)) {
-	      var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
-	      if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
-	      if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
-	      if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
-	      if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
-	    }
-	  }
-	  function d3_geom_quadtreeFind(root, x, y, x0, y0, x3, y3) {
-	    var minDistance2 = Infinity, closestPoint;
-	    (function find(node, x1, y1, x2, y2) {
-	      if (x1 > x3 || y1 > y3 || x2 < x0 || y2 < y0) return;
-	      if (point = node.point) {
-	        var point, dx = x - node.x, dy = y - node.y, distance2 = dx * dx + dy * dy;
-	        if (distance2 < minDistance2) {
-	          var distance = Math.sqrt(minDistance2 = distance2);
-	          x0 = x - distance, y0 = y - distance;
-	          x3 = x + distance, y3 = y + distance;
-	          closestPoint = point;
-	        }
-	      }
-	      var children = node.nodes, xm = (x1 + x2) * .5, ym = (y1 + y2) * .5, right = x >= xm, below = y >= ym;
-	      for (var i = below << 1 | right, j = i + 4; i < j; ++i) {
-	        if (node = children[i & 3]) switch (i & 3) {
-	         case 0:
-	          find(node, x1, y1, xm, ym);
-	          break;
-
-	         case 1:
-	          find(node, xm, y1, x2, ym);
-	          break;
-
-	         case 2:
-	          find(node, x1, ym, xm, y2);
-	          break;
-
-	         case 3:
-	          find(node, xm, ym, x2, y2);
-	          break;
-	        }
-	      }
-	    })(root, x0, y0, x3, y3);
-	    return closestPoint;
-	  }
-	  d3.interpolateRgb = d3_interpolateRgb;
-	  function d3_interpolateRgb(a, b) {
-	    a = d3.rgb(a);
-	    b = d3.rgb(b);
-	    var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
-	    return function(t) {
-	      return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
-	    };
-	  }
-	  d3.interpolateObject = d3_interpolateObject;
-	  function d3_interpolateObject(a, b) {
-	    var i = {}, c = {}, k;
-	    for (k in a) {
-	      if (k in b) {
-	        i[k] = d3_interpolate(a[k], b[k]);
-	      } else {
-	        c[k] = a[k];
-	      }
-	    }
-	    for (k in b) {
-	      if (!(k in a)) {
-	        c[k] = b[k];
-	      }
-	    }
-	    return function(t) {
-	      for (k in i) c[k] = i[k](t);
-	      return c;
-	    };
-	  }
-	  d3.interpolateNumber = d3_interpolateNumber;
-	  function d3_interpolateNumber(a, b) {
-	    a = +a, b = +b;
-	    return function(t) {
-	      return a * (1 - t) + b * t;
-	    };
-	  }
-	  d3.interpolateString = d3_interpolateString;
-	  function d3_interpolateString(a, b) {
-	    var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];
-	    a = a + "", b = b + "";
-	    while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {
-	      if ((bs = bm.index) > bi) {
-	        bs = b.slice(bi, bs);
-	        if (s[i]) s[i] += bs; else s[++i] = bs;
-	      }
-	      if ((am = am[0]) === (bm = bm[0])) {
-	        if (s[i]) s[i] += bm; else s[++i] = bm;
-	      } else {
-	        s[++i] = null;
-	        q.push({
-	          i: i,
-	          x: d3_interpolateNumber(am, bm)
-	        });
-	      }
-	      bi = d3_interpolate_numberB.lastIndex;
-	    }
-	    if (bi < b.length) {
-	      bs = b.slice(bi);
-	      if (s[i]) s[i] += bs; else s[++i] = bs;
-	    }
-	    return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {
-	      return b(t) + "";
-	    }) : function() {
-	      return b;
-	    } : (b = q.length, function(t) {
-	      for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
-	      return s.join("");
-	    });
-	  }
-	  var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g");
-	  d3.interpolate = d3_interpolate;
-	  function d3_interpolate(a, b) {
-	    var i = d3.interpolators.length, f;
-	    while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
-	    return f;
-	  }
-	  d3.interpolators = [ function(a, b) {
-	    var t = typeof b;
-	    return (t === "string" ? d3_rgb_names.has(b.toLowerCase()) || /^(#|rgb\(|hsl\()/i.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);
-	  } ];
-	  d3.interpolateArray = d3_interpolateArray;
-	  function d3_interpolateArray(a, b) {
-	    var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
-	    for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
-	    for (;i < na; ++i) c[i] = a[i];
-	    for (;i < nb; ++i) c[i] = b[i];
-	    return function(t) {
-	      for (i = 0; i < n0; ++i) c[i] = x[i](t);
-	      return c;
-	    };
-	  }
-	  var d3_ease_default = function() {
-	    return d3_identity;
-	  };
-	  var d3_ease = d3.map({
-	    linear: d3_ease_default,
-	    poly: d3_ease_poly,
-	    quad: function() {
-	      return d3_ease_quad;
-	    },
-	    cubic: function() {
-	      return d3_ease_cubic;
-	    },
-	    sin: function() {
-	      return d3_ease_sin;
-	    },
-	    exp: function() {
-	      return d3_ease_exp;
-	    },
-	    circle: function() {
-	      return d3_ease_circle;
-	    },
-	    elastic: d3_ease_elastic,
-	    back: d3_ease_back,
-	    bounce: function() {
-	      return d3_ease_bounce;
-	    }
-	  });
-	  var d3_ease_mode = d3.map({
-	    "in": d3_identity,
-	    out: d3_ease_reverse,
-	    "in-out": d3_ease_reflect,
-	    "out-in": function(f) {
-	      return d3_ease_reflect(d3_ease_reverse(f));
-	    }
-	  });
-	  d3.ease = function(name) {
-	    var i = name.indexOf("-"), t = i >= 0 ? name.slice(0, i) : name, m = i >= 0 ? name.slice(i + 1) : "in";
-	    t = d3_ease.get(t) || d3_ease_default;
-	    m = d3_ease_mode.get(m) || d3_identity;
-	    return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));
-	  };
-	  function d3_ease_clamp(f) {
-	    return function(t) {
-	      return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
-	    };
-	  }
-	  function d3_ease_reverse(f) {
-	    return function(t) {
-	      return 1 - f(1 - t);
-	    };
-	  }
-	  function d3_ease_reflect(f) {
-	    return function(t) {
-	      return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
-	    };
-	  }
-	  function d3_ease_quad(t) {
-	    return t * t;
-	  }
-	  function d3_ease_cubic(t) {
-	    return t * t * t;
-	  }
-	  function d3_ease_cubicInOut(t) {
-	    if (t <= 0) return 0;
-	    if (t >= 1) return 1;
-	    var t2 = t * t, t3 = t2 * t;
-	    return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
-	  }
-	  function d3_ease_poly(e) {
-	    return function(t) {
-	      return Math.pow(t, e);
-	    };
-	  }
-	  function d3_ease_sin(t) {
-	    return 1 - Math.cos(t * halfπ);
-	  }
-	  function d3_ease_exp(t) {
-	    return Math.pow(2, 10 * (t - 1));
-	  }
-	  function d3_ease_circle(t) {
-	    return 1 - Math.sqrt(1 - t * t);
-	  }
-	  function d3_ease_elastic(a, p) {
-	    var s;
-	    if (arguments.length < 2) p = .45;
-	    if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;
-	    return function(t) {
-	      return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);
-	    };
-	  }
-	  function d3_ease_back(s) {
-	    if (!s) s = 1.70158;
-	    return function(t) {
-	      return t * t * ((s + 1) * t - s);
-	    };
-	  }
-	  function d3_ease_bounce(t) {
-	    return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
-	  }
-	  d3.interpolateHcl = d3_interpolateHcl;
-	  function d3_interpolateHcl(a, b) {
-	    a = d3.hcl(a);
-	    b = d3.hcl(b);
-	    var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
-	    if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;
-	    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
-	    return function(t) {
-	      return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
-	    };
-	  }
-	  d3.interpolateHsl = d3_interpolateHsl;
-	  function d3_interpolateHsl(a, b) {
-	    a = d3.hsl(a);
-	    b = d3.hsl(b);
-	    var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;
-	    if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;
-	    if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
-	    return function(t) {
-	      return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + "";
-	    };
-	  }
-	  d3.interpolateLab = d3_interpolateLab;
-	  function d3_interpolateLab(a, b) {
-	    a = d3.lab(a);
-	    b = d3.lab(b);
-	    var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
-	    return function(t) {
-	      return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
-	    };
-	  }
-	  d3.interpolateRound = d3_interpolateRound;
-	  function d3_interpolateRound(a, b) {
-	    b -= a;
-	    return function(t) {
-	      return Math.round(a + b * t);
-	    };
-	  }
-	  d3.transform = function(string) {
-	    var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
-	    return (d3.transform = function(string) {
-	      if (string != null) {
-	        g.setAttribute("transform", string);
-	        var t = g.transform.baseVal.consolidate();
-	      }
-	      return new d3_transform(t ? t.matrix : d3_transformIdentity);
-	    })(string);
-	  };
-	  function d3_transform(m) {
-	    var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
-	    if (r0[0] * r1[1] < r1[0] * r0[1]) {
-	      r0[0] *= -1;
-	      r0[1] *= -1;
-	      kx *= -1;
-	      kz *= -1;
-	    }
-	    this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
-	    this.translate = [ m.e, m.f ];
-	    this.scale = [ kx, ky ];
-	    this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
-	  }
-	  d3_transform.prototype.toString = function() {
-	    return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
-	  };
-	  function d3_transformDot(a, b) {
-	    return a[0] * b[0] + a[1] * b[1];
-	  }
-	  function d3_transformNormalize(a) {
-	    var k = Math.sqrt(d3_transformDot(a, a));
-	    if (k) {
-	      a[0] /= k;
-	      a[1] /= k;
-	    }
-	    return k;
-	  }
-	  function d3_transformCombine(a, b, k) {
-	    a[0] += k * b[0];
-	    a[1] += k * b[1];
-	    return a;
-	  }
-	  var d3_transformIdentity = {
-	    a: 1,
-	    b: 0,
-	    c: 0,
-	    d: 1,
-	    e: 0,
-	    f: 0
-	  };
-	  d3.interpolateTransform = d3_interpolateTransform;
-	  function d3_interpolateTransformPop(s) {
-	    return s.length ? s.pop() + "," : "";
-	  }
-	  function d3_interpolateTranslate(ta, tb, s, q) {
-	    if (ta[0] !== tb[0] || ta[1] !== tb[1]) {
-	      var i = s.push("translate(", null, ",", null, ")");
-	      q.push({
-	        i: i - 4,
-	        x: d3_interpolateNumber(ta[0], tb[0])
-	      }, {
-	        i: i - 2,
-	        x: d3_interpolateNumber(ta[1], tb[1])
-	      });
-	    } else if (tb[0] || tb[1]) {
-	      s.push("translate(" + tb + ")");
-	    }
-	  }
-	  function d3_interpolateRotate(ra, rb, s, q) {
-	    if (ra !== rb) {
-	      if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
-	      q.push({
-	        i: s.push(d3_interpolateTransformPop(s) + "rotate(", null, ")") - 2,
-	        x: d3_interpolateNumber(ra, rb)
-	      });
-	    } else if (rb) {
-	      s.push(d3_interpolateTransformPop(s) + "rotate(" + rb + ")");
-	    }
-	  }
-	  function d3_interpolateSkew(wa, wb, s, q) {
-	    if (wa !== wb) {
-	      q.push({
-	        i: s.push(d3_interpolateTransformPop(s) + "skewX(", null, ")") - 2,
-	        x: d3_interpolateNumber(wa, wb)
-	      });
-	    } else if (wb) {
-	      s.push(d3_interpolateTransformPop(s) + "skewX(" + wb + ")");
-	    }
-	  }
-	  function d3_interpolateScale(ka, kb, s, q) {
-	    if (ka[0] !== kb[0] || ka[1] !== kb[1]) {
-	      var i = s.push(d3_interpolateTransformPop(s) + "scale(", null, ",", null, ")");
-	      q.push({
-	        i: i - 4,
-	        x: d3_interpolateNumber(ka[0], kb[0])
-	      }, {
-	        i: i - 2,
-	        x: d3_interpolateNumber(ka[1], kb[1])
-	      });
-	    } else if (kb[0] !== 1 || kb[1] !== 1) {
-	      s.push(d3_interpolateTransformPop(s) + "scale(" + kb + ")");
-	    }
-	  }
-	  function d3_interpolateTransform(a, b) {
-	    var s = [], q = [];
-	    a = d3.transform(a), b = d3.transform(b);
-	    d3_interpolateTranslate(a.translate, b.translate, s, q);
-	    d3_interpolateRotate(a.rotate, b.rotate, s, q);
-	    d3_interpolateSkew(a.skew, b.skew, s, q);
-	    d3_interpolateScale(a.scale, b.scale, s, q);
-	    a = b = null;
-	    return function(t) {
-	      var i = -1, n = q.length, o;
-	      while (++i < n) s[(o = q[i]).i] = o.x(t);
-	      return s.join("");
-	    };
-	  }
-	  function d3_uninterpolateNumber(a, b) {
-	    b = (b -= a = +a) || 1 / b;
-	    return function(x) {
-	      return (x - a) / b;
-	    };
-	  }
-	  function d3_uninterpolateClamp(a, b) {
-	    b = (b -= a = +a) || 1 / b;
-	    return function(x) {
-	      return Math.max(0, Math.min(1, (x - a) / b));
-	    };
-	  }
-	  d3.layout = {};
-	  d3.layout.bundle = function() {
-	    return function(links) {
-	      var paths = [], i = -1, n = links.length;
-	      while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
-	      return paths;
-	    };
-	  };
-	  function d3_layout_bundlePath(link) {
-	    var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
-	    while (start !== lca) {
-	      start = start.parent;
-	      points.push(start);
-	    }
-	    var k = points.length;
-	    while (end !== lca) {
-	      points.splice(k, 0, end);
-	      end = end.parent;
-	    }
-	    return points;
-	  }
-	  function d3_layout_bundleAncestors(node) {
-	    var ancestors = [], parent = node.parent;
-	    while (parent != null) {
-	      ancestors.push(node);
-	      node = parent;
-	      parent = parent.parent;
-	    }
-	    ancestors.push(node);
-	    return ancestors;
-	  }
-	  function d3_layout_bundleLeastCommonAncestor(a, b) {
-	    if (a === b) return a;
-	    var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
-	    while (aNode === bNode) {
-	      sharedNode = aNode;
-	      aNode = aNodes.pop();
-	      bNode = bNodes.pop();
-	    }
-	    return sharedNode;
-	  }
-	  d3.layout.chord = function() {
-	    var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
-	    function relayout() {
-	      var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
-	      chords = [];
-	      groups = [];
-	      k = 0, i = -1;
-	      while (++i < n) {
-	        x = 0, j = -1;
-	        while (++j < n) {
-	          x += matrix[i][j];
-	        }
-	        groupSums.push(x);
-	        subgroupIndex.push(d3.range(n));
-	        k += x;
-	      }
-	      if (sortGroups) {
-	        groupIndex.sort(function(a, b) {
-	          return sortGroups(groupSums[a], groupSums[b]);
-	        });
-	      }
-	      if (sortSubgroups) {
-	        subgroupIndex.forEach(function(d, i) {
-	          d.sort(function(a, b) {
-	            return sortSubgroups(matrix[i][a], matrix[i][b]);
-	          });
-	        });
-	      }
-	      k = (τ - padding * n) / k;
-	      x = 0, i = -1;
-	      while (++i < n) {
-	        x0 = x, j = -1;
-	        while (++j < n) {
-	          var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;
-	          subgroups[di + "-" + dj] = {
-	            index: di,
-	            subindex: dj,
-	            startAngle: a0,
-	            endAngle: a1,
-	            value: v
-	          };
-	        }
-	        groups[di] = {
-	          index: di,
-	          startAngle: x0,
-	          endAngle: x,
-	          value: groupSums[di]
-	        };
-	        x += padding;
-	      }
-	      i = -1;
-	      while (++i < n) {
-	        j = i - 1;
-	        while (++j < n) {
-	          var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];
-	          if (source.value || target.value) {
-	            chords.push(source.value < target.value ? {
-	              source: target,
-	              target: source
-	            } : {
-	              source: source,
-	              target: target
-	            });
-	          }
-	        }
-	      }
-	      if (sortChords) resort();
-	    }
-	    function resort() {
-	      chords.sort(function(a, b) {
-	        return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
-	      });
-	    }
-	    chord.matrix = function(x) {
-	      if (!arguments.length) return matrix;
-	      n = (matrix = x) && matrix.length;
-	      chords = groups = null;
-	      return chord;
-	    };
-	    chord.padding = function(x) {
-	      if (!arguments.length) return padding;
-	      padding = x;
-	      chords = groups = null;
-	      return chord;
-	    };
-	    chord.sortGroups = function(x) {
-	      if (!arguments.length) return sortGroups;
-	      sortGroups = x;
-	      chords = groups = null;
-	      return chord;
-	    };
-	    chord.sortSubgroups = function(x) {
-	      if (!arguments.length) return sortSubgroups;
-	      sortSubgroups = x;
-	      chords = null;
-	      return chord;
-	    };
-	    chord.sortChords = function(x) {
-	      if (!arguments.length) return sortChords;
-	      sortChords = x;
-	      if (chords) resort();
-	      return chord;
-	    };
-	    chord.chords = function() {
-	      if (!chords) relayout();
-	      return chords;
-	    };
-	    chord.groups = function() {
-	      if (!groups) relayout();
-	      return groups;
-	    };
-	    return chord;
-	  };
-	  d3.layout.force = function() {
-	    var force = {}, event = d3.dispatch("start", "tick", "end"), timer, size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;
-	    function repulse(node) {
-	      return function(quad, x1, _, x2) {
-	        if (quad.point !== node) {
-	          var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;
-	          if (dw * dw / theta2 < dn) {
-	            if (dn < chargeDistance2) {
-	              var k = quad.charge / dn;
-	              node.px -= dx * k;
-	              node.py -= dy * k;
-	            }
-	            return true;
-	          }
-	          if (quad.point && dn && dn < chargeDistance2) {
-	            var k = quad.pointCharge / dn;
-	            node.px -= dx * k;
-	            node.py -= dy * k;
-	          }
-	        }
-	        return !quad.charge;
-	      };
-	    }
-	    force.tick = function() {
-	      if ((alpha *= .99) < .005) {
-	        timer = null;
-	        event.end({
-	          type: "end",
-	          alpha: alpha = 0
-	        });
-	        return true;
-	      }
-	      var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;
-	      for (i = 0; i < m; ++i) {
-	        o = links[i];
-	        s = o.source;
-	        t = o.target;
-	        x = t.x - s.x;
-	        y = t.y - s.y;
-	        if (l = x * x + y * y) {
-	          l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
-	          x *= l;
-	          y *= l;
-	          t.x -= x * (k = s.weight + t.weight ? s.weight / (s.weight + t.weight) : .5);
-	          t.y -= y * k;
-	          s.x += x * (k = 1 - k);
-	          s.y += y * k;
-	        }
-	      }
-	      if (k = alpha * gravity) {
-	        x = size[0] / 2;
-	        y = size[1] / 2;
-	        i = -1;
-	        if (k) while (++i < n) {
-	          o = nodes[i];
-	          o.x += (x - o.x) * k;
-	          o.y += (y - o.y) * k;
-	        }
-	      }
-	      if (charge) {
-	        d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
-	        i = -1;
-	        while (++i < n) {
-	          if (!(o = nodes[i]).fixed) {
-	            q.visit(repulse(o));
-	          }
-	        }
-	      }
-	      i = -1;
-	      while (++i < n) {
-	        o = nodes[i];
-	        if (o.fixed) {
-	          o.x = o.px;
-	          o.y = o.py;
-	        } else {
-	          o.x -= (o.px - (o.px = o.x)) * friction;
-	          o.y -= (o.py - (o.py = o.y)) * friction;
-	        }
-	      }
-	      event.tick({
-	        type: "tick",
-	        alpha: alpha
-	      });
-	    };
-	    force.nodes = function(x) {
-	      if (!arguments.length) return nodes;
-	      nodes = x;
-	      return force;
-	    };
-	    force.links = function(x) {
-	      if (!arguments.length) return links;
-	      links = x;
-	      return force;
-	    };
-	    force.size = function(x) {
-	      if (!arguments.length) return size;
-	      size = x;
-	      return force;
-	    };
-	    force.linkDistance = function(x) {
-	      if (!arguments.length) return linkDistance;
-	      linkDistance = typeof x === "function" ? x : +x;
-	      return force;
-	    };
-	    force.distance = force.linkDistance;
-	    force.linkStrength = function(x) {
-	      if (!arguments.length) return linkStrength;
-	      linkStrength = typeof x === "function" ? x : +x;
-	      return force;
-	    };
-	    force.friction = function(x) {
-	      if (!arguments.length) return friction;
-	      friction = +x;
-	      return force;
-	    };
-	    force.charge = function(x) {
-	      if (!arguments.length) return charge;
-	      charge = typeof x === "function" ? x : +x;
-	      return force;
-	    };
-	    force.chargeDistance = function(x) {
-	      if (!arguments.length) return Math.sqrt(chargeDistance2);
-	      chargeDistance2 = x * x;
-	      return force;
-	    };
-	    force.gravity = function(x) {
-	      if (!arguments.length) return gravity;
-	      gravity = +x;
-	      return force;
-	    };
-	    force.theta = function(x) {
-	      if (!arguments.length) return Math.sqrt(theta2);
-	      theta2 = x * x;
-	      return force;
-	    };
-	    force.alpha = function(x) {
-	      if (!arguments.length) return alpha;
-	      x = +x;
-	      if (alpha) {
-	        if (x > 0) {
-	          alpha = x;
-	        } else {
-	          timer.c = null, timer.t = NaN, timer = null;
-	          event.end({
-	            type: "end",
-	            alpha: alpha = 0
-	          });
-	        }
-	      } else if (x > 0) {
-	        event.start({
-	          type: "start",
-	          alpha: alpha = x
-	        });
-	        timer = d3_timer(force.tick);
-	      }
-	      return force;
-	    };
-	    force.start = function() {
-	      var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
-	      for (i = 0; i < n; ++i) {
-	        (o = nodes[i]).index = i;
-	        o.weight = 0;
-	      }
-	      for (i = 0; i < m; ++i) {
-	        o = links[i];
-	        if (typeof o.source == "number") o.source = nodes[o.source];
-	        if (typeof o.target == "number") o.target = nodes[o.target];
-	        ++o.source.weight;
-	        ++o.target.weight;
-	      }
-	      for (i = 0; i < n; ++i) {
-	        o = nodes[i];
-	        if (isNaN(o.x)) o.x = position("x", w);
-	        if (isNaN(o.y)) o.y = position("y", h);
-	        if (isNaN(o.px)) o.px = o.x;
-	        if (isNaN(o.py)) o.py = o.y;
-	      }
-	      distances = [];
-	      if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
-	      strengths = [];
-	      if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
-	      charges = [];
-	      if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
-	      function position(dimension, size) {
-	        if (!neighbors) {
-	          neighbors = new Array(n);
-	          for (j = 0; j < n; ++j) {
-	            neighbors[j] = [];
-	          }
-	          for (j = 0; j < m; ++j) {
-	            var o = links[j];
-	            neighbors[o.source.index].push(o.target);
-	            neighbors[o.target.index].push(o.source);
-	          }
-	        }
-	        var candidates = neighbors[i], j = -1, l = candidates.length, x;
-	        while (++j < l) if (!isNaN(x = candidates[j][dimension])) return x;
-	        return Math.random() * size;
-	      }
-	      return force.resume();
-	    };
-	    force.resume = function() {
-	      return force.alpha(.1);
-	    };
-	    force.stop = function() {
-	      return force.alpha(0);
-	    };
-	    force.drag = function() {
-	      if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
-	      if (!arguments.length) return drag;
-	      this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
-	    };
-	    function dragmove(d) {
-	      d.px = d3.event.x, d.py = d3.event.y;
-	      force.resume();
-	    }
-	    return d3.rebind(force, event, "on");
-	  };
-	  function d3_layout_forceDragstart(d) {
-	    d.fixed |= 2;
-	  }
-	  function d3_layout_forceDragend(d) {
-	    d.fixed &= ~6;
-	  }
-	  function d3_layout_forceMouseover(d) {
-	    d.fixed |= 4;
-	    d.px = d.x, d.py = d.y;
-	  }
-	  function d3_layout_forceMouseout(d) {
-	    d.fixed &= ~4;
-	  }
-	  function d3_layout_forceAccumulate(quad, alpha, charges) {
-	    var cx = 0, cy = 0;
-	    quad.charge = 0;
-	    if (!quad.leaf) {
-	      var nodes = quad.nodes, n = nodes.length, i = -1, c;
-	      while (++i < n) {
-	        c = nodes[i];
-	        if (c == null) continue;
-	        d3_layout_forceAccumulate(c, alpha, charges);
-	        quad.charge += c.charge;
-	        cx += c.charge * c.cx;
-	        cy += c.charge * c.cy;
-	      }
-	    }
-	    if (quad.point) {
-	      if (!quad.leaf) {
-	        quad.point.x += Math.random() - .5;
-	        quad.point.y += Math.random() - .5;
-	      }
-	      var k = alpha * charges[quad.point.index];
-	      quad.charge += quad.pointCharge = k;
-	      cx += k * quad.point.x;
-	      cy += k * quad.point.y;
-	    }
-	    quad.cx = cx / quad.charge;
-	    quad.cy = cy / quad.charge;
-	  }
-	  var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;
-	  d3.layout.hierarchy = function() {
-	    var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
-	    function hierarchy(root) {
-	      var stack = [ root ], nodes = [], node;
-	      root.depth = 0;
-	      while ((node = stack.pop()) != null) {
-	        nodes.push(node);
-	        if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {
-	          var n, childs, child;
-	          while (--n >= 0) {
-	            stack.push(child = childs[n]);
-	            child.parent = node;
-	            child.depth = node.depth + 1;
-	          }
-	          if (value) node.value = 0;
-	          node.children = childs;
-	        } else {
-	          if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;
-	          delete node.children;
-	        }
-	      }
-	      d3_layout_hierarchyVisitAfter(root, function(node) {
-	        var childs, parent;
-	        if (sort && (childs = node.children)) childs.sort(sort);
-	        if (value && (parent = node.parent)) parent.value += node.value;
-	      });
-	      return nodes;
-	    }
-	    hierarchy.sort = function(x) {
-	      if (!arguments.length) return sort;
-	      sort = x;
-	      return hierarchy;
-	    };
-	    hierarchy.children = function(x) {
-	      if (!arguments.length) return children;
-	      children = x;
-	      return hierarchy;
-	    };
-	    hierarchy.value = function(x) {
-	      if (!arguments.length) return value;
-	      value = x;
-	      return hierarchy;
-	    };
-	    hierarchy.revalue = function(root) {
-	      if (value) {
-	        d3_layout_hierarchyVisitBefore(root, function(node) {
-	          if (node.children) node.value = 0;
-	        });
-	        d3_layout_hierarchyVisitAfter(root, function(node) {
-	          var parent;
-	          if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;
-	          if (parent = node.parent) parent.value += node.value;
-	        });
-	      }
-	      return root;
-	    };
-	    return hierarchy;
-	  };
-	  function d3_layout_hierarchyRebind(object, hierarchy) {
-	    d3.rebind(object, hierarchy, "sort", "children", "value");
-	    object.nodes = object;
-	    object.links = d3_layout_hierarchyLinks;
-	    return object;
-	  }
-	  function d3_layout_hierarchyVisitBefore(node, callback) {
-	    var nodes = [ node ];
-	    while ((node = nodes.pop()) != null) {
-	      callback(node);
-	      if ((children = node.children) && (n = children.length)) {
-	        var n, children;
-	        while (--n >= 0) nodes.push(children[n]);
-	      }
-	    }
-	  }
-	  function d3_layout_hierarchyVisitAfter(node, callback) {
-	    var nodes = [ node ], nodes2 = [];
-	    while ((node = nodes.pop()) != null) {
-	      nodes2.push(node);
-	      if ((children = node.children) && (n = children.length)) {
-	        var i = -1, n, children;
-	        while (++i < n) nodes.push(children[i]);
-	      }
-	    }
-	    while ((node = nodes2.pop()) != null) {
-	      callback(node);
-	    }
-	  }
-	  function d3_layout_hierarchyChildren(d) {
-	    return d.children;
-	  }
-	  function d3_layout_hierarchyValue(d) {
-	    return d.value;
-	  }
-	  function d3_layout_hierarchySort(a, b) {
-	    return b.value - a.value;
-	  }
-	  function d3_layout_hierarchyLinks(nodes) {
-	    return d3.merge(nodes.map(function(parent) {
-	      return (parent.children || []).map(function(child) {
-	        return {
-	          source: parent,
-	          target: child
-	        };
-	      });
-	    }));
-	  }
-	  d3.layout.partition = function() {
-	    var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
-	    function position(node, x, dx, dy) {
-	      var children = node.children;
-	      node.x = x;
-	      node.y = node.depth * dy;
-	      node.dx = dx;
-	      node.dy = dy;
-	      if (children && (n = children.length)) {
-	        var i = -1, n, c, d;
-	        dx = node.value ? dx / node.value : 0;
-	        while (++i < n) {
-	          position(c = children[i], x, d = c.value * dx, dy);
-	          x += d;
-	        }
-	      }
-	    }
-	    function depth(node) {
-	      var children = node.children, d = 0;
-	      if (children && (n = children.length)) {
-	        var i = -1, n;
-	        while (++i < n) d = Math.max(d, depth(children[i]));
-	      }
-	      return 1 + d;
-	    }
-	    function partition(d, i) {
-	      var nodes = hierarchy.call(this, d, i);
-	      position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
-	      return nodes;
-	    }
-	    partition.size = function(x) {
-	      if (!arguments.length) return size;
-	      size = x;
-	      return partition;
-	    };
-	    return d3_layout_hierarchyRebind(partition, hierarchy);
-	  };
-	  d3.layout.pie = function() {
-	    var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ, padAngle = 0;
-	    function pie(data) {
-	      var n = data.length, values = data.map(function(d, i) {
-	        return +value.call(pie, d, i);
-	      }), a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle), da = (typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a, p = Math.min(Math.abs(da) / n, +(typeof padAngle === "function" ? padAngle.apply(this, arguments) : padAngle)), pa = p * (da < 0 ? -1 : 1), sum = d3.sum(values), k = sum ? (da - n * pa) / sum : 0, index = d3.range(n), arcs = [], v;
-	      if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
-	        return values[j] - values[i];
-	      } : function(i, j) {
-	        return sort(data[i], data[j]);
-	      });
-	      index.forEach(function(i) {
-	        arcs[i] = {
-	          data: data[i],
-	          value: v = values[i],
-	          startAngle: a,
-	          endAngle: a += v * k + pa,
-	          padAngle: p
-	        };
-	      });
-	      return arcs;
-	    }
-	    pie.value = function(_) {
-	      if (!arguments.length) return value;
-	      value = _;
-	      return pie;
-	    };
-	    pie.sort = function(_) {
-	      if (!arguments.length) return sort;
-	      sort = _;
-	      return pie;
-	    };
-	    pie.startAngle = function(_) {
-	      if (!arguments.length) return startAngle;
-	      startAngle = _;
-	      return pie;
-	    };
-	    pie.endAngle = function(_) {
-	      if (!arguments.length) return endAngle;
-	      endAngle = _;
-	      return pie;
-	    };
-	    pie.padAngle = function(_) {
-	      if (!arguments.length) return padAngle;
-	      padAngle = _;
-	      return pie;
-	    };
-	    return pie;
-	  };
-	  var d3_layout_pieSortByValue = {};
-	  d3.layout.stack = function() {
-	    var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
-	    function stack(data, index) {
-	      if (!(n = data.length)) return data;
-	      var series = data.map(function(d, i) {
-	        return values.call(stack, d, i);
-	      });
-	      var points = series.map(function(d) {
-	        return d.map(function(v, i) {
-	          return [ x.call(stack, v, i), y.call(stack, v, i) ];
-	        });
-	      });
-	      var orders = order.call(stack, points, index);
-	      series = d3.permute(series, orders);
-	      points = d3.permute(points, orders);
-	      var offsets = offset.call(stack, points, index);
-	      var m = series[0].length, n, i, j, o;
-	      for (j = 0; j < m; ++j) {
-	        out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
-	        for (i = 1; i < n; ++i) {
-	          out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
-	        }
-	      }
-	      return data;
-	    }
-	    stack.values = function(x) {
-	      if (!arguments.length) return values;
-	      values = x;
-	      return stack;
-	    };
-	    stack.order = function(x) {
-	      if (!arguments.length) return order;
-	      order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
-	      return stack;
-	    };
-	    stack.offset = function(x) {
-	      if (!arguments.length) return offset;
-	      offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
-	      return stack;
-	    };
-	    stack.x = function(z) {
-	      if (!arguments.length) return x;
-	      x = z;
-	      return stack;
-	    };
-	    stack.y = function(z) {
-	      if (!arguments.length) return y;
-	      y = z;
-	      return stack;
-	    };
-	    stack.out = function(z) {
-	      if (!arguments.length) return out;
-	      out = z;
-	      return stack;
-	    };
-	    return stack;
-	  };
-	  function d3_layout_stackX(d) {
-	    return d.x;
-	  }
-	  function d3_layout_stackY(d) {
-	    return d.y;
-	  }
-	  function d3_layout_stackOut(d, y0, y) {
-	    d.y0 = y0;
-	    d.y = y;
-	  }
-	  var d3_layout_stackOrders = d3.map({
-	    "inside-out": function(data) {
-	      var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
-	        return max[a] - max[b];
-	      }), top = 0, bottom = 0, tops = [], bottoms = [];
-	      for (i = 0; i < n; ++i) {
-	        j = index[i];
-	        if (top < bottom) {
-	          top += sums[j];
-	          tops.push(j);
-	        } else {
-	          bottom += sums[j];
-	          bottoms.push(j);
-	        }
-	      }
-	      return bottoms.reverse().concat(tops);
-	    },
-	    reverse: function(data) {
-	      return d3.range(data.length).reverse();
-	    },
-	    "default": d3_layout_stackOrderDefault
-	  });
-	  var d3_layout_stackOffsets = d3.map({
-	    silhouette: function(data) {
-	      var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];
-	      for (j = 0; j < m; ++j) {
-	        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
-	        if (o > max) max = o;
-	        sums.push(o);
-	      }
-	      for (j = 0; j < m; ++j) {
-	        y0[j] = (max - sums[j]) / 2;
-	      }
-	      return y0;
-	    },
-	    wiggle: function(data) {
-	      var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
-	      y0[0] = o = o0 = 0;
-	      for (j = 1; j < m; ++j) {
-	        for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
-	        for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
-	          for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
-	            s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
-	          }
-	          s2 += s3 * data[i][j][1];
-	        }
-	        y0[j] = o -= s1 ? s2 / s1 * dx : 0;
-	        if (o < o0) o0 = o;
-	      }
-	      for (j = 0; j < m; ++j) y0[j] -= o0;
-	      return y0;
-	    },
-	    expand: function(data) {
-	      var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];
-	      for (j = 0; j < m; ++j) {
-	        for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
-	        if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;
-	      }
-	      for (j = 0; j < m; ++j) y0[j] = 0;
-	      return y0;
-	    },
-	    zero: d3_layout_stackOffsetZero
-	  });
-	  function d3_layout_stackOrderDefault(data) {
-	    return d3.range(data.length);
-	  }
-	  function d3_layout_stackOffsetZero(data) {
-	    var j = -1, m = data[0].length, y0 = [];
-	    while (++j < m) y0[j] = 0;
-	    return y0;
-	  }
-	  function d3_layout_stackMaxIndex(array) {
-	    var i = 1, j = 0, v = array[0][1], k, n = array.length;
-	    for (;i < n; ++i) {
-	      if ((k = array[i][1]) > v) {
-	        j = i;
-	        v = k;
-	      }
-	    }
-	    return j;
-	  }
-	  function d3_layout_stackReduceSum(d) {
-	    return d.reduce(d3_layout_stackSum, 0);
-	  }
-	  function d3_layout_stackSum(p, d) {
-	    return p + d[1];
-	  }
-	  d3.layout.histogram = function() {
-	    var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
-	    function histogram(data, i) {
-	      var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
-	      while (++i < m) {
-	        bin = bins[i] = [];
-	        bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
-	        bin.y = 0;
-	      }
-	      if (m > 0) {
-	        i = -1;
-	        while (++i < n) {
-	          x = values[i];
-	          if (x >= range[0] && x <= range[1]) {
-	            bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
-	            bin.y += k;
-	            bin.push(data[i]);
-	          }
-	        }
-	      }
-	      return bins;
-	    }
-	    histogram.value = function(x) {
-	      if (!arguments.length) return valuer;
-	      valuer = x;
-	      return histogram;
-	    };
-	    histogram.range = function(x) {
-	      if (!arguments.length) return ranger;
-	      ranger = d3_functor(x);
-	      return histogram;
-	    };
-	    histogram.bins = function(x) {
-	      if (!arguments.length) return binner;
-	      binner = typeof x === "number" ? function(range) {
-	        return d3_layout_histogramBinFixed(range, x);
-	      } : d3_functor(x);
-	      return histogram;
-	    };
-	    histogram.frequency = function(x) {
-	      if (!arguments.length) return frequency;
-	      frequency = !!x;
-	      return histogram;
-	    };
-	    return histogram;
-	  };
-	  function d3_layout_histogramBinSturges(range, values) {
-	    return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
-	  }
-	  function d3_layout_histogramBinFixed(range, n) {
-	    var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
-	    while (++x <= n) f[x] = m * x + b;
-	    return f;
-	  }
-	  function d3_layout_histogramRange(values) {
-	    return [ d3.min(values), d3.max(values) ];
-	  }
-	  d3.layout.pack = function() {
-	    var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;
-	    function pack(d, i) {
-	      var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() {
-	        return radius;
-	      };
-	      root.x = root.y = 0;
-	      d3_layout_hierarchyVisitAfter(root, function(d) {
-	        d.r = +r(d.value);
-	      });
-	      d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
-	      if (padding) {
-	        var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;
-	        d3_layout_hierarchyVisitAfter(root, function(d) {
-	          d.r += dr;
-	        });
-	        d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
-	        d3_layout_hierarchyVisitAfter(root, function(d) {
-	          d.r -= dr;
-	        });
-	      }
-	      d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));
-	      return nodes;
-	    }
-	    pack.size = function(_) {
-	      if (!arguments.length) return size;
-	      size = _;
-	      return pack;
-	    };
-	    pack.radius = function(_) {
-	      if (!arguments.length) return radius;
-	      radius = _ == null || typeof _ === "function" ? _ : +_;
-	      return pack;
-	    };
-	    pack.padding = function(_) {
-	      if (!arguments.length) return padding;
-	      padding = +_;
-	      return pack;
-	    };
-	    return d3_layout_hierarchyRebind(pack, hierarchy);
-	  };
-	  function d3_layout_packSort(a, b) {
-	    return a.value - b.value;
-	  }
-	  function d3_layout_packInsert(a, b) {
-	    var c = a._pack_next;
-	    a._pack_next = b;
-	    b._pack_prev = a;
-	    b._pack_next = c;
-	    c._pack_prev = b;
-	  }
-	  function d3_layout_packSplice(a, b) {
-	    a._pack_next = b;
-	    b._pack_prev = a;
-	  }
-	  function d3_layout_packIntersects(a, b) {
-	    var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
-	    return .999 * dr * dr > dx * dx + dy * dy;
-	  }
-	  function d3_layout_packSiblings(node) {
-	    if (!(nodes = node.children) || !(n = nodes.length)) return;
-	    var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
-	    function bound(node) {
-	      xMin = Math.min(node.x - node.r, xMin);
-	      xMax = Math.max(node.x + node.r, xMax);
-	      yMin = Math.min(node.y - node.r, yMin);
-	      yMax = Math.max(node.y + node.r, yMax);
-	    }
-	    nodes.forEach(d3_layout_packLink);
-	    a = nodes[0];
-	    a.x = -a.r;
-	    a.y = 0;
-	    bound(a);
-	    if (n > 1) {
-	      b = nodes[1];
-	      b.x = b.r;
-	      b.y = 0;
-	      bound(b);
-	      if (n > 2) {
-	        c = nodes[2];
-	        d3_layout_packPlace(a, b, c);
-	        bound(c);
-	        d3_layout_packInsert(a, c);
-	        a._pack_prev = c;
-	        d3_layout_packInsert(c, b);
-	        b = a._pack_next;
-	        for (i = 3; i < n; i++) {
-	          d3_layout_packPlace(a, b, c = nodes[i]);
-	          var isect = 0, s1 = 1, s2 = 1;
-	          for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
-	            if (d3_layout_packIntersects(j, c)) {
-	              isect = 1;
-	              break;
-	            }
-	          }
-	          if (isect == 1) {
-	            for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
-	              if (d3_layout_packIntersects(k, c)) {
-	                break;
-	              }
-	            }
-	          }
-	          if (isect) {
-	            if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
-	            i--;
-	          } else {
-	            d3_layout_packInsert(a, c);
-	            b = c;
-	            bound(c);
-	          }
-	        }
-	      }
-	    }
-	    var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
-	    for (i = 0; i < n; i++) {
-	      c = nodes[i];
-	      c.x -= cx;
-	      c.y -= cy;
-	      cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
-	    }
-	    node.r = cr;
-	    nodes.forEach(d3_layout_packUnlink);
-	  }
-	  function d3_layout_packLink(node) {
-	    node._pack_next = node._pack_prev = node;
-	  }
-	  function d3_layout_packUnlink(node) {
-	    delete node._pack_next;
-	    delete node._pack_prev;
-	  }
-	  function d3_layout_packTransform(node, x, y, k) {
-	    var children = node.children;
-	    node.x = x += k * node.x;
-	    node.y = y += k * node.y;
-	    node.r *= k;
-	    if (children) {
-	      var i = -1, n = children.length;
-	      while (++i < n) d3_layout_packTransform(children[i], x, y, k);
-	    }
-	  }
-	  function d3_layout_packPlace(a, b, c) {
-	    var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
-	    if (db && (dx || dy)) {
-	      var da = b.r + c.r, dc = dx * dx + dy * dy;
-	      da *= da;
-	      db *= db;
-	      var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
-	      c.x = a.x + x * dx + y * dy;
-	      c.y = a.y + x * dy - y * dx;
-	    } else {
-	      c.x = a.x + db;
-	      c.y = a.y;
-	    }
-	  }
-	  d3.layout.tree = function() {
-	    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;
-	    function tree(d, i) {
-	      var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);
-	      d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;
-	      d3_layout_hierarchyVisitBefore(root1, secondWalk);
-	      if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {
-	        var left = root0, right = root0, bottom = root0;
-	        d3_layout_hierarchyVisitBefore(root0, function(node) {
-	          if (node.x < left.x) left = node;
-	          if (node.x > right.x) right = node;
-	          if (node.depth > bottom.depth) bottom = node;
-	        });
-	        var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);
-	        d3_layout_hierarchyVisitBefore(root0, function(node) {
-	          node.x = (node.x + tx) * kx;
-	          node.y = node.depth * ky;
-	        });
-	      }
-	      return nodes;
-	    }
-	    function wrapTree(root0) {
-	      var root1 = {
-	        A: null,
-	        children: [ root0 ]
-	      }, queue = [ root1 ], node1;
-	      while ((node1 = queue.pop()) != null) {
-	        for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {
-	          queue.push((children[i] = child = {
-	            _: children[i],
-	            parent: node1,
-	            children: (child = children[i].children) && child.slice() || [],
-	            A: null,
-	            a: null,
-	            z: 0,
-	            m: 0,
-	            c: 0,
-	            s: 0,
-	            t: null,
-	            i: i
-	          }).a = child);
-	        }
-	      }
-	      return root1.children[0];
-	    }
-	    function firstWalk(v) {
-	      var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;
-	      if (children.length) {
-	        d3_layout_treeShift(v);
-	        var midpoint = (children[0].z + children[children.length - 1].z) / 2;
-	        if (w) {
-	          v.z = w.z + separation(v._, w._);
-	          v.m = v.z - midpoint;
-	        } else {
-	          v.z = midpoint;
-	        }
-	      } else if (w) {
-	        v.z = w.z + separation(v._, w._);
-	      }
-	      v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
-	    }
-	    function secondWalk(v) {
-	      v._.x = v.z + v.parent.m;
-	      v.m += v.parent.m;
-	    }
-	    function apportion(v, w, ancestor) {
-	      if (w) {
-	        var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;
-	        while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
-	          vom = d3_layout_treeLeft(vom);
-	          vop = d3_layout_treeRight(vop);
-	          vop.a = v;
-	          shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
-	          if (shift > 0) {
-	            d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);
-	            sip += shift;
-	            sop += shift;
-	          }
-	          sim += vim.m;
-	          sip += vip.m;
-	          som += vom.m;
-	          sop += vop.m;
-	        }
-	        if (vim && !d3_layout_treeRight(vop)) {
-	          vop.t = vim;
-	          vop.m += sim - sop;
-	        }
-	        if (vip && !d3_layout_treeLeft(vom)) {
-	          vom.t = vip;
-	          vom.m += sip - som;
-	          ancestor = v;
-	        }
-	      }
-	      return ancestor;
-	    }
-	    function sizeNode(node) {
-	      node.x *= size[0];
-	      node.y = node.depth * size[1];
-	    }
-	    tree.separation = function(x) {
-	      if (!arguments.length) return separation;
-	      separation = x;
-	      return tree;
-	    };
-	    tree.size = function(x) {
-	      if (!arguments.length) return nodeSize ? null : size;
-	      nodeSize = (size = x) == null ? sizeNode : null;
-	      return tree;
-	    };
-	    tree.nodeSize = function(x) {
-	      if (!arguments.length) return nodeSize ? size : null;
-	      nodeSize = (size = x) == null ? null : sizeNode;
-	      return tree;
-	    };
-	    return d3_layout_hierarchyRebind(tree, hierarchy);
-	  };
-	  function d3_layout_treeSeparation(a, b) {
-	    return a.parent == b.parent ? 1 : 2;
-	  }
-	  function d3_layout_treeLeft(v) {
-	    var children = v.children;
-	    return children.length ? children[0] : v.t;
-	  }
-	  function d3_layout_treeRight(v) {
-	    var children = v.children, n;
-	    return (n = children.length) ? children[n - 1] : v.t;
-	  }
-	  function d3_layout_treeMove(wm, wp, shift) {
-	    var change = shift / (wp.i - wm.i);
-	    wp.c -= change;
-	    wp.s += shift;
-	    wm.c += change;
-	    wp.z += shift;
-	    wp.m += shift;
-	  }
-	  function d3_layout_treeShift(v) {
-	    var shift = 0, change = 0, children = v.children, i = children.length, w;
-	    while (--i >= 0) {
-	      w = children[i];
-	      w.z += shift;
-	      w.m += shift;
-	      shift += w.s + (change += w.c);
-	    }
-	  }
-	  function d3_layout_treeAncestor(vim, v, ancestor) {
-	    return vim.a.parent === v.parent ? vim.a : ancestor;
-	  }
-	  d3.layout.cluster = function() {
-	    var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;
-	    function cluster(d, i) {
-	      var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
-	      d3_layout_hierarchyVisitAfter(root, function(node) {
-	        var children = node.children;
-	        if (children && children.length) {
-	          node.x = d3_layout_clusterX(children);
-	          node.y = d3_layout_clusterY(children);
-	        } else {
-	          node.x = previousNode ? x += separation(node, previousNode) : 0;
-	          node.y = 0;
-	          previousNode = node;
-	        }
-	      });
-	      var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
-	      d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {
-	        node.x = (node.x - root.x) * size[0];
-	        node.y = (root.y - node.y) * size[1];
-	      } : function(node) {
-	        node.x = (node.x - x0) / (x1 - x0) * size[0];
-	        node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
-	      });
-	      return nodes;
-	    }
-	    cluster.separation = function(x) {
-	      if (!arguments.length) return separation;
-	      separation = x;
-	      return cluster;
-	    };
-	    cluster.size = function(x) {
-	      if (!arguments.length) return nodeSize ? null : size;
-	      nodeSize = (size = x) == null;
-	      return cluster;
-	    };
-	    cluster.nodeSize = function(x) {
-	      if (!arguments.length) return nodeSize ? size : null;
-	      nodeSize = (size = x) != null;
-	      return cluster;
-	    };
-	    return d3_layout_hierarchyRebind(cluster, hierarchy);
-	  };
-	  function d3_layout_clusterY(children) {
-	    return 1 + d3.max(children, function(child) {
-	      return child.y;
-	    });
-	  }
-	  function d3_layout_clusterX(children) {
-	    return children.reduce(function(x, child) {
-	      return x + child.x;
-	    }, 0) / children.length;
-	  }
-	  function d3_layout_clusterLeft(node) {
-	    var children = node.children;
-	    return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
-	  }
-	  function d3_layout_clusterRight(node) {
-	    var children = node.children, n;
-	    return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
-	  }
-	  d3.layout.treemap = function() {
-	    var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
-	    function scale(children, k) {
-	      var i = -1, n = children.length, child, area;
-	      while (++i < n) {
-	        area = (child = children[i]).value * (k < 0 ? 0 : k);
-	        child.area = isNaN(area) || area <= 0 ? 0 : area;
-	      }
-	    }
-	    function squarify(node) {
-	      var children = node.children;
-	      if (children && children.length) {
-	        var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
-	        scale(remaining, rect.dx * rect.dy / node.value);
-	        row.area = 0;
-	        while ((n = remaining.length) > 0) {
-	          row.push(child = remaining[n - 1]);
-	          row.area += child.area;
-	          if (mode !== "squarify" || (score = worst(row, u)) <= best) {
-	            remaining.pop();
-	            best = score;
-	          } else {
-	            row.area -= row.pop().area;
-	            position(row, u, rect, false);
-	            u = Math.min(rect.dx, rect.dy);
-	            row.length = row.area = 0;
-	            best = Infinity;
-	          }
-	        }
-	        if (row.length) {
-	          position(row, u, rect, true);
-	          row.length = row.area = 0;
-	        }
-	        children.forEach(squarify);
-	      }
-	    }
-	    function stickify(node) {
-	      var children = node.children;
-	      if (children && children.length) {
-	        var rect = pad(node), remaining = children.slice(), child, row = [];
-	        scale(remaining, rect.dx * rect.dy / node.value);
-	        row.area = 0;
-	        while (child = remaining.pop()) {
-	          row.push(child);
-	          row.area += child.area;
-	          if (child.z != null) {
-	            position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
-	            row.length = row.area = 0;
-	          }
-	        }
-	        children.forEach(stickify);
-	      }
-	    }
-	    function worst(row, u) {
-	      var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;
-	      while (++i < n) {
-	        if (!(r = row[i].area)) continue;
-	        if (r < rmin) rmin = r;
-	        if (r > rmax) rmax = r;
-	      }
-	      s *= s;
-	      u *= u;
-	      return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;
-	    }
-	    function position(row, u, rect, flush) {
-	      var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;
-	      if (u == rect.dx) {
-	        if (flush || v > rect.dy) v = rect.dy;
-	        while (++i < n) {
-	          o = row[i];
-	          o.x = x;
-	          o.y = y;
-	          o.dy = v;
-	          x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
-	        }
-	        o.z = true;
-	        o.dx += rect.x + rect.dx - x;
-	        rect.y += v;
-	        rect.dy -= v;
-	      } else {
-	        if (flush || v > rect.dx) v = rect.dx;
-	        while (++i < n) {
-	          o = row[i];
-	          o.x = x;
-	          o.y = y;
-	          o.dx = v;
-	          y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
-	        }
-	        o.z = false;
-	        o.dy += rect.y + rect.dy - y;
-	        rect.x += v;
-	        rect.dx -= v;
-	      }
-	    }
-	    function treemap(d) {
-	      var nodes = stickies || hierarchy(d), root = nodes[0];
-	      root.x = root.y = 0;
-	      if (root.value) root.dx = size[0], root.dy = size[1]; else root.dx = root.dy = 0;
-	      if (stickies) hierarchy.revalue(root);
-	      scale([ root ], root.dx * root.dy / root.value);
-	      (stickies ? stickify : squarify)(root);
-	      if (sticky) stickies = nodes;
-	      return nodes;
-	    }
-	    treemap.size = function(x) {
-	      if (!arguments.length) return size;
-	      size = x;
-	      return treemap;
-	    };
-	    treemap.padding = function(x) {
-	      if (!arguments.length) return padding;
-	      function padFunction(node) {
-	        var p = x.call(treemap, node, node.depth);
-	        return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
-	      }
-	      function padConstant(node) {
-	        return d3_layout_treemapPad(node, x);
-	      }
-	      var type;
-	      pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ], 
-	      padConstant) : padConstant;
-	      return treemap;
-	    };
-	    treemap.round = function(x) {
-	      if (!arguments.length) return round != Number;
-	      round = x ? Math.round : Number;
-	      return treemap;
-	    };
-	    treemap.sticky = function(x) {
-	      if (!arguments.length) return sticky;
-	      sticky = x;
-	      stickies = null;
-	      return treemap;
-	    };
-	    treemap.ratio = function(x) {
-	      if (!arguments.length) return ratio;
-	      ratio = x;
-	      return treemap;
-	    };
-	    treemap.mode = function(x) {
-	      if (!arguments.length) return mode;
-	      mode = x + "";
-	      return treemap;
-	    };
-	    return d3_layout_hierarchyRebind(treemap, hierarchy);
-	  };
-	  function d3_layout_treemapPadNull(node) {
-	    return {
-	      x: node.x,
-	      y: node.y,
-	      dx: node.dx,
-	      dy: node.dy
-	    };
-	  }
-	  function d3_layout_treemapPad(node, padding) {
-	    var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
-	    if (dx < 0) {
-	      x += dx / 2;
-	      dx = 0;
-	    }
-	    if (dy < 0) {
-	      y += dy / 2;
-	      dy = 0;
-	    }
-	    return {
-	      x: x,
-	      y: y,
-	      dx: dx,
-	      dy: dy
-	    };
-	  }
-	  d3.random = {
-	    normal: function(µ, σ) {
-	      var n = arguments.length;
-	      if (n < 2) σ = 1;
-	      if (n < 1) µ = 0;
-	      return function() {
-	        var x, y, r;
-	        do {
-	          x = Math.random() * 2 - 1;
-	          y = Math.random() * 2 - 1;
-	          r = x * x + y * y;
-	        } while (!r || r > 1);
-	        return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
-	      };
-	    },
-	    logNormal: function() {
-	      var random = d3.random.normal.apply(d3, arguments);
-	      return function() {
-	        return Math.exp(random());
-	      };
-	    },
-	    bates: function(m) {
-	      var random = d3.random.irwinHall(m);
-	      return function() {
-	        return random() / m;
-	      };
-	    },
-	    irwinHall: function(m) {
-	      return function() {
-	        for (var s = 0, j = 0; j < m; j++) s += Math.random();
-	        return s;
-	      };
-	    }
-	  };
-	  d3.scale = {};
-	  function d3_scaleExtent(domain) {
-	    var start = domain[0], stop = domain[domain.length - 1];
-	    return start < stop ? [ start, stop ] : [ stop, start ];
-	  }
-	  function d3_scaleRange(scale) {
-	    return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
-	  }
-	  function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
-	    var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
-	    return function(x) {
-	      return i(u(x));
-	    };
-	  }
-	  function d3_scale_nice(domain, nice) {
-	    var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
-	    if (x1 < x0) {
-	      dx = i0, i0 = i1, i1 = dx;
-	      dx = x0, x0 = x1, x1 = dx;
-	    }
-	    domain[i0] = nice.floor(x0);
-	    domain[i1] = nice.ceil(x1);
-	    return domain;
-	  }
-	  function d3_scale_niceStep(step) {
-	    return step ? {
-	      floor: function(x) {
-	        return Math.floor(x / step) * step;
-	      },
-	      ceil: function(x) {
-	        return Math.ceil(x / step) * step;
-	      }
-	    } : d3_scale_niceIdentity;
-	  }
-	  var d3_scale_niceIdentity = {
-	    floor: d3_identity,
-	    ceil: d3_identity
-	  };
-	  function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
-	    var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
-	    if (domain[k] < domain[0]) {
-	      domain = domain.slice().reverse();
-	      range = range.slice().reverse();
-	    }
-	    while (++j <= k) {
-	      u.push(uninterpolate(domain[j - 1], domain[j]));
-	      i.push(interpolate(range[j - 1], range[j]));
-	    }
-	    return function(x) {
-	      var j = d3.bisect(domain, x, 1, k) - 1;
-	      return i[j](u[j](x));
-	    };
-	  }
-	  d3.scale.linear = function() {
-	    return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
-	  };
-	  function d3_scale_linear(domain, range, interpolate, clamp) {
-	    var output, input;
-	    function rescale() {
-	      var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
-	      output = linear(domain, range, uninterpolate, interpolate);
-	      input = linear(range, domain, uninterpolate, d3_interpolate);
-	      return scale;
-	    }
-	    function scale(x) {
-	      return output(x);
-	    }
-	    scale.invert = function(y) {
-	      return input(y);
-	    };
-	    scale.domain = function(x) {
-	      if (!arguments.length) return domain;
-	      domain = x.map(Number);
-	      return rescale();
-	    };
-	    scale.range = function(x) {
-	      if (!arguments.length) return range;
-	      range = x;
-	      return rescale();
-	    };
-	    scale.rangeRound = function(x) {
-	      return scale.range(x).interpolate(d3_interpolateRound);
-	    };
-	    scale.clamp = function(x) {
-	      if (!arguments.length) return clamp;
-	      clamp = x;
-	      return rescale();
-	    };
-	    scale.interpolate = function(x) {
-	      if (!arguments.length) return interpolate;
-	      interpolate = x;
-	      return rescale();
-	    };
-	    scale.ticks = function(m) {
-	      return d3_scale_linearTicks(domain, m);
-	    };
-	    scale.tickFormat = function(m, format) {
-	      return d3_scale_linearTickFormat(domain, m, format);
-	    };
-	    scale.nice = function(m) {
-	      d3_scale_linearNice(domain, m);
-	      return rescale();
-	    };
-	    scale.copy = function() {
-	      return d3_scale_linear(domain, range, interpolate, clamp);
-	    };
-	    return rescale();
-	  }
-	  function d3_scale_linearRebind(scale, linear) {
-	    return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
-	  }
-	  function d3_scale_linearNice(domain, m) {
-	    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
-	    d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
-	    return domain;
-	  }
-	  function d3_scale_linearTickRange(domain, m) {
-	    if (m == null) m = 10;
-	    var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
-	    if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
-	    extent[0] = Math.ceil(extent[0] / step) * step;
-	    extent[1] = Math.floor(extent[1] / step) * step + step * .5;
-	    extent[2] = step;
-	    return extent;
-	  }
-	  function d3_scale_linearTicks(domain, m) {
-	    return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
-	  }
-	  function d3_scale_linearTickFormat(domain, m, format) {
-	    var range = d3_scale_linearTickRange(domain, m);
-	    if (format) {
-	      var match = d3_format_re.exec(format);
-	      match.shift();
-	      if (match[8] === "s") {
-	        var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));
-	        if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2]));
-	        match[8] = "f";
-	        format = d3.format(match.join(""));
-	        return function(d) {
-	          return format(prefix.scale(d)) + prefix.symbol;
-	        };
-	      }
-	      if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range);
-	      format = match.join("");
-	    } else {
-	      format = ",." + d3_scale_linearPrecision(range[2]) + "f";
-	    }
-	    return d3.format(format);
-	  }
-	  var d3_scale_linearFormatSignificant = {
-	    s: 1,
-	    g: 1,
-	    p: 1,
-	    r: 1,
-	    e: 1
-	  };
-	  function d3_scale_linearPrecision(value) {
-	    return -Math.floor(Math.log(value) / Math.LN10 + .01);
-	  }
-	  function d3_scale_linearFormatPrecision(type, range) {
-	    var p = d3_scale_linearPrecision(range[2]);
-	    return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2;
-	  }
-	  d3.scale.log = function() {
-	    return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);
-	  };
-	  function d3_scale_log(linear, base, positive, domain) {
-	    function log(x) {
-	      return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);
-	    }
-	    function pow(x) {
-	      return positive ? Math.pow(base, x) : -Math.pow(base, -x);
-	    }
-	    function scale(x) {
-	      return linear(log(x));
-	    }
-	    scale.invert = function(x) {
-	      return pow(linear.invert(x));
-	    };
-	    scale.domain = function(x) {
-	      if (!arguments.length) return domain;
-	      positive = x[0] >= 0;
-	      linear.domain((domain = x.map(Number)).map(log));
-	      return scale;
-	    };
-	    scale.base = function(_) {
-	      if (!arguments.length) return base;
-	      base = +_;
-	      linear.domain(domain.map(log));
-	      return scale;
-	    };
-	    scale.nice = function() {
-	      var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);
-	      linear.domain(niced);
-	      domain = niced.map(pow);
-	      return scale;
-	    };
-	    scale.ticks = function() {
-	      var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;
-	      if (isFinite(j - i)) {
-	        if (positive) {
-	          for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);
-	          ticks.push(pow(i));
-	        } else {
-	          ticks.push(pow(i));
-	          for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);
-	        }
-	        for (i = 0; ticks[i] < u; i++) {}
-	        for (j = ticks.length; ticks[j - 1] > v; j--) {}
-	        ticks = ticks.slice(i, j);
-	      }
-	      return ticks;
-	    };
-	    scale.tickFormat = function(n, format) {
-	      if (!arguments.length) return d3_scale_logFormat;
-	      if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format);
-	      var k = Math.max(1, base * n / scale.ticks().length);
-	      return function(d) {
-	        var i = d / pow(Math.round(log(d)));
-	        if (i * base < base - .5) i *= base;
-	        return i <= k ? format(d) : "";
-	      };
-	    };
-	    scale.copy = function() {
-	      return d3_scale_log(linear.copy(), base, positive, domain);
-	    };
-	    return d3_scale_linearRebind(scale, linear);
-	  }
-	  var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = {
-	    floor: function(x) {
-	      return -Math.ceil(-x);
-	    },
-	    ceil: function(x) {
-	      return -Math.floor(-x);
-	    }
-	  };
-	  d3.scale.pow = function() {
-	    return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);
-	  };
-	  function d3_scale_pow(linear, exponent, domain) {
-	    var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
-	    function scale(x) {
-	      return linear(powp(x));
-	    }
-	    scale.invert = function(x) {
-	      return powb(linear.invert(x));
-	    };
-	    scale.domain = function(x) {
-	      if (!arguments.length) return domain;
-	      linear.domain((domain = x.map(Number)).map(powp));
-	      return scale;
-	    };
-	    scale.ticks = function(m) {
-	      return d3_scale_linearTicks(domain, m);
-	    };
-	    scale.tickFormat = function(m, format) {
-	      return d3_scale_linearTickFormat(domain, m, format);
-	    };
-	    scale.nice = function(m) {
-	      return scale.domain(d3_scale_linearNice(domain, m));
-	    };
-	    scale.exponent = function(x) {
-	      if (!arguments.length) return exponent;
-	      powp = d3_scale_powPow(exponent = x);
-	      powb = d3_scale_powPow(1 / exponent);
-	      linear.domain(domain.map(powp));
-	      return scale;
-	    };
-	    scale.copy = function() {
-	      return d3_scale_pow(linear.copy(), exponent, domain);
-	    };
-	    return d3_scale_linearRebind(scale, linear);
-	  }
-	  function d3_scale_powPow(e) {
-	    return function(x) {
-	      return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
-	    };
-	  }
-	  d3.scale.sqrt = function() {
-	    return d3.scale.pow().exponent(.5);
-	  };
-	  d3.scale.ordinal = function() {
-	    return d3_scale_ordinal([], {
-	      t: "range",
-	      a: [ [] ]
-	    });
-	  };
-	  function d3_scale_ordinal(domain, ranger) {
-	    var index, range, rangeBand;
-	    function scale(x) {
-	      return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];
-	    }
-	    function steps(start, step) {
-	      return d3.range(domain.length).map(function(i) {
-	        return start + step * i;
-	      });
-	    }
-	    scale.domain = function(x) {
-	      if (!arguments.length) return domain;
-	      domain = [];
-	      index = new d3_Map();
-	      var i = -1, n = x.length, xi;
-	      while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
-	      return scale[ranger.t].apply(scale, ranger.a);
-	    };
-	    scale.range = function(x) {
-	      if (!arguments.length) return range;
-	      range = x;
-	      rangeBand = 0;
-	      ranger = {
-	        t: "range",
-	        a: arguments
-	      };
-	      return scale;
-	    };
-	    scale.rangePoints = function(x, padding) {
-	      if (arguments.length < 2) padding = 0;
-	      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = (start + stop) / 2, 
-	      0) : (stop - start) / (domain.length - 1 + padding);
-	      range = steps(start + step * padding / 2, step);
-	      rangeBand = 0;
-	      ranger = {
-	        t: "rangePoints",
-	        a: arguments
-	      };
-	      return scale;
-	    };
-	    scale.rangeRoundPoints = function(x, padding) {
-	      if (arguments.length < 2) padding = 0;
-	      var start = x[0], stop = x[1], step = domain.length < 2 ? (start = stop = Math.round((start + stop) / 2), 
-	      0) : (stop - start) / (domain.length - 1 + padding) | 0;
-	      range = steps(start + Math.round(step * padding / 2 + (stop - start - (domain.length - 1 + padding) * step) / 2), step);
-	      rangeBand = 0;
-	      ranger = {
-	        t: "rangeRoundPoints",
-	        a: arguments
-	      };
-	      return scale;
-	    };
-	    scale.rangeBands = function(x, padding, outerPadding) {
-	      if (arguments.length < 2) padding = 0;
-	      if (arguments.length < 3) outerPadding = padding;
-	      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
-	      range = steps(start + step * outerPadding, step);
-	      if (reverse) range.reverse();
-	      rangeBand = step * (1 - padding);
-	      ranger = {
-	        t: "rangeBands",
-	        a: arguments
-	      };
-	      return scale;
-	    };
-	    scale.rangeRoundBands = function(x, padding, outerPadding) {
-	      if (arguments.length < 2) padding = 0;
-	      if (arguments.length < 3) outerPadding = padding;
-	      var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding));
-	      range = steps(start + Math.round((stop - start - (domain.length - padding) * step) / 2), step);
-	      if (reverse) range.reverse();
-	      rangeBand = Math.round(step * (1 - padding));
-	      ranger = {
-	        t: "rangeRoundBands",
-	        a: arguments
-	      };
-	      return scale;
-	    };
-	    scale.rangeBand = function() {
-	      return rangeBand;
-	    };
-	    scale.rangeExtent = function() {
-	      return d3_scaleExtent(ranger.a[0]);
-	    };
-	    scale.copy = function() {
-	      return d3_scale_ordinal(domain, ranger);
-	    };
-	    return scale.domain(domain);
-	  }
-	  d3.scale.category10 = function() {
-	    return d3.scale.ordinal().range(d3_category10);
-	  };
-	  d3.scale.category20 = function() {
-	    return d3.scale.ordinal().range(d3_category20);
-	  };
-	  d3.scale.category20b = function() {
-	    return d3.scale.ordinal().range(d3_category20b);
-	  };
-	  d3.scale.category20c = function() {
-	    return d3.scale.ordinal().range(d3_category20c);
-	  };
-	  var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);
-	  var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);
-	  var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);
-	  var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);
-	  d3.scale.quantile = function() {
-	    return d3_scale_quantile([], []);
-	  };
-	  function d3_scale_quantile(domain, range) {
-	    var thresholds;
-	    function rescale() {
-	      var k = 0, q = range.length;
-	      thresholds = [];
-	      while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
-	      return scale;
-	    }
-	    function scale(x) {
-	      if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
-	    }
-	    scale.domain = function(x) {
-	      if (!arguments.length) return domain;
-	      domain = x.map(d3_number).filter(d3_numeric).sort(d3_ascending);
-	      return rescale();
-	    };
-	    scale.range = function(x) {
-	      if (!arguments.length) return range;
-	      range = x;
-	      return rescale();
-	    };
-	    scale.quantiles = function() {
-	      return thresholds;
-	    };
-	    scale.invertExtent = function(y) {
-	      y = range.indexOf(y);
-	      return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];
-	    };
-	    scale.copy = function() {
-	      return d3_scale_quantile(domain, range);
-	    };
-	    return rescale();
-	  }
-	  d3.scale.quantize = function() {
-	    return d3_scale_quantize(0, 1, [ 0, 1 ]);
-	  };
-	  function d3_scale_quantize(x0, x1, range) {
-	    var kx, i;
-	    function scale(x) {
-	      return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
-	    }
-	    function rescale() {
-	      kx = range.length / (x1 - x0);
-	      i = range.length - 1;
-	      return scale;
-	    }
-	    scale.domain = function(x) {
-	      if (!arguments.length) return [ x0, x1 ];
-	      x0 = +x[0];
-	      x1 = +x[x.length - 1];
-	      return rescale();
-	    };
-	    scale.range = function(x) {
-	      if (!arguments.length) return range;
-	      range = x;
-	      return rescale();
-	    };
-	    scale.invertExtent = function(y) {
-	      y = range.indexOf(y);
-	      y = y < 0 ? NaN : y / kx + x0;
-	      return [ y, y + 1 / kx ];
-	    };
-	    scale.copy = function() {
-	      return d3_scale_quantize(x0, x1, range);
-	    };
-	    return rescale();
-	  }
-	  d3.scale.threshold = function() {
-	    return d3_scale_threshold([ .5 ], [ 0, 1 ]);
-	  };
-	  function d3_scale_threshold(domain, range) {
-	    function scale(x) {
-	      if (x <= x) return range[d3.bisect(domain, x)];
-	    }
-	    scale.domain = function(_) {
-	      if (!arguments.length) return domain;
-	      domain = _;
-	      return scale;
-	    };
-	    scale.range = function(_) {
-	      if (!arguments.length) return range;
-	      range = _;
-	      return scale;
-	    };
-	    scale.invertExtent = function(y) {
-	      y = range.indexOf(y);
-	      return [ domain[y - 1], domain[y] ];
-	    };
-	    scale.copy = function() {
-	      return d3_scale_threshold(domain, range);
-	    };
-	    return scale;
-	  }
-	  d3.scale.identity = function() {
-	    return d3_scale_identity([ 0, 1 ]);
-	  };
-	  function d3_scale_identity(domain) {
-	    function identity(x) {
-	      return +x;
-	    }
-	    identity.invert = identity;
-	    identity.domain = identity.range = function(x) {
-	      if (!arguments.length) return domain;
-	      domain = x.map(identity);
-	      return identity;
-	    };
-	    identity.ticks = function(m) {
-	      return d3_scale_linearTicks(domain, m);
-	    };
-	    identity.tickFormat = function(m, format) {
-	      return d3_scale_linearTickFormat(domain, m, format);
-	    };
-	    identity.copy = function() {
-	      return d3_scale_identity(domain);
-	    };
-	    return identity;
-	  }
-	  d3.svg = {};
-	  function d3_zero() {
-	    return 0;
-	  }
-	  d3.svg.arc = function() {
-	    var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, cornerRadius = d3_zero, padRadius = d3_svg_arcAuto, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle, padAngle = d3_svg_arcPadAngle;
-	    function arc() {
-	      var r0 = Math.max(0, +innerRadius.apply(this, arguments)), r1 = Math.max(0, +outerRadius.apply(this, arguments)), a0 = startAngle.apply(this, arguments) - halfπ, a1 = endAngle.apply(this, arguments) - halfπ, da = Math.abs(a1 - a0), cw = a0 > a1 ? 0 : 1;
-	      if (r1 < r0) rc = r1, r1 = r0, r0 = rc;
-	      if (da >= τε) return circleSegment(r1, cw) + (r0 ? circleSegment(r0, 1 - cw) : "") + "Z";
-	      var rc, cr, rp, ap, p0 = 0, p1 = 0, x0, y0, x1, y1, x2, y2, x3, y3, path = [];
-	      if (ap = (+padAngle.apply(this, arguments) || 0) / 2) {
-	        rp = padRadius === d3_svg_arcAuto ? Math.sqrt(r0 * r0 + r1 * r1) : +padRadius.apply(this, arguments);
-	        if (!cw) p1 *= -1;
-	        if (r1) p1 = d3_asin(rp / r1 * Math.sin(ap));
-	        if (r0) p0 = d3_asin(rp / r0 * Math.sin(ap));
-	      }
-	      if (r1) {
-	        x0 = r1 * Math.cos(a0 + p1);
-	        y0 = r1 * Math.sin(a0 + p1);
-	        x1 = r1 * Math.cos(a1 - p1);
-	        y1 = r1 * Math.sin(a1 - p1);
-	        var l1 = Math.abs(a1 - a0 - 2 * p1) <= π ? 0 : 1;
-	        if (p1 && d3_svg_arcSweep(x0, y0, x1, y1) === cw ^ l1) {
-	          var h1 = (a0 + a1) / 2;
-	          x0 = r1 * Math.cos(h1);
-	          y0 = r1 * Math.sin(h1);
-	          x1 = y1 = null;
-	        }
-	      } else {
-	        x0 = y0 = 0;
-	      }
-	      if (r0) {
-	        x2 = r0 * Math.cos(a1 - p0);
-	        y2 = r0 * Math.sin(a1 - p0);
-	        x3 = r0 * Math.cos(a0 + p0);
-	        y3 = r0 * Math.sin(a0 + p0);
-	        var l0 = Math.abs(a0 - a1 + 2 * p0) <= π ? 0 : 1;
-	        if (p0 && d3_svg_arcSweep(x2, y2, x3, y3) === 1 - cw ^ l0) {
-	          var h0 = (a0 + a1) / 2;
-	          x2 = r0 * Math.cos(h0);
-	          y2 = r0 * Math.sin(h0);
-	          x3 = y3 = null;
-	        }
-	      } else {
-	        x2 = y2 = 0;
-	      }
-	      if (da > ε && (rc = Math.min(Math.abs(r1 - r0) / 2, +cornerRadius.apply(this, arguments))) > .001) {
-	        cr = r0 < r1 ^ cw ? 0 : 1;
-	        var rc1 = rc, rc0 = rc;
-	        if (da < π) {
-	          var oc = x3 == null ? [ x2, y2 ] : x1 == null ? [ x0, y0 ] : d3_geom_polygonIntersect([ x0, y0 ], [ x3, y3 ], [ x1, y1 ], [ x2, y2 ]), ax = x0 - oc[0], ay = y0 - oc[1], bx = x1 - oc[0], by = y1 - oc[1], kc = 1 / Math.sin(Math.acos((ax * bx + ay * by) / (Math.sqrt(ax * ax + ay * ay) * Math.sqrt(bx * bx + by * by))) / 2), lc = Math.sqrt(oc[0] * oc[0] + oc[1] * oc[1]);
-	          rc0 = Math.min(rc, (r0 - lc) / (kc - 1));
-	          rc1 = Math.min(rc, (r1 - lc) / (kc + 1));
-	        }
-	        if (x1 != null) {
-	          var t30 = d3_svg_arcCornerTangents(x3 == null ? [ x2, y2 ] : [ x3, y3 ], [ x0, y0 ], r1, rc1, cw), t12 = d3_svg_arcCornerTangents([ x1, y1 ], [ x2, y2 ], r1, rc1, cw);
-	          if (rc === rc1) {
-	            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 0,", cr, " ", t30[1], "A", r1, ",", r1, " 0 ", 1 - cw ^ d3_svg_arcSweep(t30[1][0], t30[1][1], t12[1][0], t12[1][1]), ",", cw, " ", t12[1], "A", rc1, ",", rc1, " 0 0,", cr, " ", t12[0]);
-	          } else {
-	            path.push("M", t30[0], "A", rc1, ",", rc1, " 0 1,", cr, " ", t12[0]);
-	          }
-	        } else {
-	          path.push("M", x0, ",", y0);
-	        }
-	        if (x3 != null) {
-	          var t03 = d3_svg_arcCornerTangents([ x0, y0 ], [ x3, y3 ], r0, -rc0, cw), t21 = d3_svg_arcCornerTangents([ x2, y2 ], x1 == null ? [ x0, y0 ] : [ x1, y1 ], r0, -rc0, cw);
-	          if (rc === rc0) {
-	            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t21[1], "A", r0, ",", r0, " 0 ", cw ^ d3_svg_arcSweep(t21[1][0], t21[1][1], t03[1][0], t03[1][1]), ",", 1 - cw, " ", t03[1], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
-	          } else {
-	            path.push("L", t21[0], "A", rc0, ",", rc0, " 0 0,", cr, " ", t03[0]);
-	          }
-	        } else {
-	          path.push("L", x2, ",", y2);
-	        }
-	      } else {
-	        path.push("M", x0, ",", y0);
-	        if (x1 != null) path.push("A", r1, ",", r1, " 0 ", l1, ",", cw, " ", x1, ",", y1);
-	        path.push("L", x2, ",", y2);
-	        if (x3 != null) path.push("A", r0, ",", r0, " 0 ", l0, ",", 1 - cw, " ", x3, ",", y3);
-	      }
-	      path.push("Z");
-	      return path.join("");
-	    }
-	    function circleSegment(r1, cw) {
-	      return "M0," + r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + -r1 + "A" + r1 + "," + r1 + " 0 1," + cw + " 0," + r1;
-	    }
-	    arc.innerRadius = function(v) {
-	      if (!arguments.length) return innerRadius;
-	      innerRadius = d3_functor(v);
-	      return arc;
-	    };
-	    arc.outerRadius = function(v) {
-	      if (!arguments.length) return outerRadius;
-	      outerRadius = d3_functor(v);
-	      return arc;
-	    };
-	    arc.cornerRadius = function(v) {
-	      if (!arguments.length) return cornerRadius;
-	      cornerRadius = d3_functor(v);
-	      return arc;
-	    };
-	    arc.padRadius = function(v) {
-	      if (!arguments.length) return padRadius;
-	      padRadius = v == d3_svg_arcAuto ? d3_svg_arcAuto : d3_functor(v);
-	      return arc;
-	    };
-	    arc.startAngle = function(v) {
-	      if (!arguments.length) return startAngle;
-	      startAngle = d3_functor(v);
-	      return arc;
-	    };
-	    arc.endAngle = function(v) {
-	      if (!arguments.length) return endAngle;
-	      endAngle = d3_functor(v);
-	      return arc;
-	    };
-	    arc.padAngle = function(v) {
-	      if (!arguments.length) return padAngle;
-	      padAngle = d3_functor(v);
-	      return arc;
-	    };
-	    arc.centroid = function() {
-	      var r = (+innerRadius.apply(this, arguments) + +outerRadius.apply(this, arguments)) / 2, a = (+startAngle.apply(this, arguments) + +endAngle.apply(this, arguments)) / 2 - halfπ;
-	      return [ Math.cos(a) * r, Math.sin(a) * r ];
-	    };
-	    return arc;
-	  };
-	  var d3_svg_arcAuto = "auto";
-	  function d3_svg_arcInnerRadius(d) {
-	    return d.innerRadius;
-	  }
-	  function d3_svg_arcOuterRadius(d) {
-	    return d.outerRadius;
-	  }
-	  function d3_svg_arcStartAngle(d) {
-	    return d.startAngle;
-	  }
-	  function d3_svg_arcEndAngle(d) {
-	    return d.endAngle;
-	  }
-	  function d3_svg_arcPadAngle(d) {
-	    return d && d.padAngle;
-	  }
-	  function d3_svg_arcSweep(x0, y0, x1, y1) {
-	    return (x0 - x1) * y0 - (y0 - y1) * x0 > 0 ? 0 : 1;
-	  }
-	  function d3_svg_arcCornerTangents(p0, p1, r1, rc, cw) {
-	    var x01 = p0[0] - p1[0], y01 = p0[1] - p1[1], lo = (cw ? rc : -rc) / Math.sqrt(x01 * x01 + y01 * y01), ox = lo * y01, oy = -lo * x01, x1 = p0[0] + ox, y1 = p0[1] + oy, x2 = p1[0] + ox, y2 = p1[1] + oy, x3 = (x1 + x2) / 2, y3 = (y1 + y2) / 2, dx = x2 - x1, dy = y2 - y1, d2 = dx * dx + dy * dy, r = r1 - rc, D = x1 * y2 - x2 * y1, d = (dy < 0 ? -1 : 1) * Math.sqrt(Math.max(0, r * r * d2 - D * D)), cx0 = (D * dy - dx * d) / d2, cy0 = (-D * dx - dy * d) / d2, cx1 = (D * dy + dx * d) / d2, cy1 = (-D * dx + dy * d) / d2, dx0 = cx0 - x3, dy0 = cy0 - y3, dx1 = cx1 - x3, dy1 = cy1 - y3;
-	    if (dx0 * dx0 + dy0 * dy0 > dx1 * dx1 + dy1 * dy1) cx0 = cx1, cy0 = cy1;
-	    return [ [ cx0 - ox, cy0 - oy ], [ cx0 * r1 / r, cy0 * r1 / r ] ];
-	  }
-	  function d3_svg_line(projection) {
-	    var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
-	    function line(data) {
-	      var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
-	      function segment() {
-	        segments.push("M", interpolate(projection(points), tension));
-	      }
-	      while (++i < n) {
-	        if (defined.call(this, d = data[i], i)) {
-	          points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
-	        } else if (points.length) {
-	          segment();
-	          points = [];
-	        }
-	      }
-	      if (points.length) segment();
-	      return segments.length ? segments.join("") : null;
-	    }
-	    line.x = function(_) {
-	      if (!arguments.length) return x;
-	      x = _;
-	      return line;
-	    };
-	    line.y = function(_) {
-	      if (!arguments.length) return y;
-	      y = _;
-	      return line;
-	    };
-	    line.defined = function(_) {
-	      if (!arguments.length) return defined;
-	      defined = _;
-	      return line;
-	    };
-	    line.interpolate = function(_) {
-	      if (!arguments.length) return interpolateKey;
-	      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
-	      return line;
-	    };
-	    line.tension = function(_) {
-	      if (!arguments.length) return tension;
-	      tension = _;
-	      return line;
-	    };
-	    return line;
-	  }
-	  d3.svg.line = function() {
-	    return d3_svg_line(d3_identity);
-	  };
-	  var d3_svg_lineInterpolators = d3.map({
-	    linear: d3_svg_lineLinear,
-	    "linear-closed": d3_svg_lineLinearClosed,
-	    step: d3_svg_lineStep,
-	    "step-before": d3_svg_lineStepBefore,
-	    "step-after": d3_svg_lineStepAfter,
-	    basis: d3_svg_lineBasis,
-	    "basis-open": d3_svg_lineBasisOpen,
-	    "basis-closed": d3_svg_lineBasisClosed,
-	    bundle: d3_svg_lineBundle,
-	    cardinal: d3_svg_lineCardinal,
-	    "cardinal-open": d3_svg_lineCardinalOpen,
-	    "cardinal-closed": d3_svg_lineCardinalClosed,
-	    monotone: d3_svg_lineMonotone
-	  });
-	  d3_svg_lineInterpolators.forEach(function(key, value) {
-	    value.key = key;
-	    value.closed = /-closed$/.test(key);
-	  });
-	  function d3_svg_lineLinear(points) {
-	    return points.length > 1 ? points.join("L") : points + "Z";
-	  }
-	  function d3_svg_lineLinearClosed(points) {
-	    return points.join("L") + "Z";
-	  }
-	  function d3_svg_lineStep(points) {
-	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
-	    while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]);
-	    if (n > 1) path.push("H", p[0]);
-	    return path.join("");
-	  }
-	  function d3_svg_lineStepBefore(points) {
-	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
-	    while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
-	    return path.join("");
-	  }
-	  function d3_svg_lineStepAfter(points) {
-	    var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
-	    while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
-	    return path.join("");
-	  }
-	  function d3_svg_lineCardinalOpen(points, tension) {
-	    return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, -1), d3_svg_lineCardinalTangents(points, tension));
-	  }
-	  function d3_svg_lineCardinalClosed(points, tension) {
-	    return points.length < 3 ? d3_svg_lineLinearClosed(points) : points[0] + d3_svg_lineHermite((points.push(points[0]), 
-	    points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
-	  }
-	  function d3_svg_lineCardinal(points, tension) {
-	    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
-	  }
-	  function d3_svg_lineHermite(points, tangents) {
-	    if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
-	      return d3_svg_lineLinear(points);
-	    }
-	    var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
-	    if (quad) {
-	      path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
-	      p0 = points[1];
-	      pi = 2;
-	    }
-	    if (tangents.length > 1) {
-	      t = tangents[1];
-	      p = points[pi];
-	      pi++;
-	      path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
-	      for (var i = 2; i < tangents.length; i++, pi++) {
-	        p = points[pi];
-	        t = tangents[i];
-	        path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
-	      }
-	    }
-	    if (quad) {
-	      var lp = points[pi];
-	      path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
-	    }
-	    return path;
-	  }
-	  function d3_svg_lineCardinalTangents(points, tension) {
-	    var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
-	    while (++i < n) {
-	      p0 = p1;
-	      p1 = p2;
-	      p2 = points[i];
-	      tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
-	    }
-	    return tangents;
-	  }
-	  function d3_svg_lineBasis(points) {
-	    if (points.length < 3) return d3_svg_lineLinear(points);
-	    var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
-	    points.push(points[n - 1]);
-	    while (++i <= n) {
-	      pi = points[i];
-	      px.shift();
-	      px.push(pi[0]);
-	      py.shift();
-	      py.push(pi[1]);
-	      d3_svg_lineBasisBezier(path, px, py);
-	    }
-	    points.pop();
-	    path.push("L", pi);
-	    return path.join("");
-	  }
-	  function d3_svg_lineBasisOpen(points) {
-	    if (points.length < 4) return d3_svg_lineLinear(points);
-	    var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
-	    while (++i < 3) {
-	      pi = points[i];
-	      px.push(pi[0]);
-	      py.push(pi[1]);
-	    }
-	    path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
-	    --i;
-	    while (++i < n) {
-	      pi = points[i];
-	      px.shift();
-	      px.push(pi[0]);
-	      py.shift();
-	      py.push(pi[1]);
-	      d3_svg_lineBasisBezier(path, px, py);
-	    }
-	    return path.join("");
-	  }
-	  function d3_svg_lineBasisClosed(points) {
-	    var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
-	    while (++i < 4) {
-	      pi = points[i % n];
-	      px.push(pi[0]);
-	      py.push(pi[1]);
-	    }
-	    path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
-	    --i;
-	    while (++i < m) {
-	      pi = points[i % n];
-	      px.shift();
-	      px.push(pi[0]);
-	      py.shift();
-	      py.push(pi[1]);
-	      d3_svg_lineBasisBezier(path, px, py);
-	    }
-	    return path.join("");
-	  }
-	  function d3_svg_lineBundle(points, tension) {
-	    var n = points.length - 1;
-	    if (n) {
-	      var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
-	      while (++i <= n) {
-	        p = points[i];
-	        t = i / n;
-	        p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
-	        p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
-	      }
-	    }
-	    return d3_svg_lineBasis(points);
-	  }
-	  function d3_svg_lineDot4(a, b) {
-	    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-	  }
-	  var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
-	  function d3_svg_lineBasisBezier(path, x, y) {
-	    path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
-	  }
-	  function d3_svg_lineSlope(p0, p1) {
-	    return (p1[1] - p0[1]) / (p1[0] - p0[0]);
-	  }
-	  function d3_svg_lineFiniteDifferences(points) {
-	    var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
-	    while (++i < j) {
-	      m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
-	    }
-	    m[i] = d;
-	    return m;
-	  }
-	  function d3_svg_lineMonotoneTangents(points) {
-	    var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
-	    while (++i < j) {
-	      d = d3_svg_lineSlope(points[i], points[i + 1]);
-	      if (abs(d) < ε) {
-	        m[i] = m[i + 1] = 0;
-	      } else {
-	        a = m[i] / d;
-	        b = m[i + 1] / d;
-	        s = a * a + b * b;
-	        if (s > 9) {
-	          s = d * 3 / Math.sqrt(s);
-	          m[i] = s * a;
-	          m[i + 1] = s * b;
-	        }
-	      }
-	    }
-	    i = -1;
-	    while (++i <= j) {
-	      s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
-	      tangents.push([ s || 0, m[i] * s || 0 ]);
-	    }
-	    return tangents;
-	  }
-	  function d3_svg_lineMonotone(points) {
-	    return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
-	  }
-	  d3.svg.line.radial = function() {
-	    var line = d3_svg_line(d3_svg_lineRadial);
-	    line.radius = line.x, delete line.x;
-	    line.angle = line.y, delete line.y;
-	    return line;
-	  };
-	  function d3_svg_lineRadial(points) {
-	    var point, i = -1, n = points.length, r, a;
-	    while (++i < n) {
-	      point = points[i];
-	      r = point[0];
-	      a = point[1] - halfπ;
-	      point[0] = r * Math.cos(a);
-	      point[1] = r * Math.sin(a);
-	    }
-	    return points;
-	  }
-	  function d3_svg_area(projection) {
-	    var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
-	    function area(data) {
-	      var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
-	        return x;
-	      } : d3_functor(x1), fy1 = y0 === y1 ? function() {
-	        return y;
-	      } : d3_functor(y1), x, y;
-	      function segment() {
-	        segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
-	      }
-	      while (++i < n) {
-	        if (defined.call(this, d = data[i], i)) {
-	          points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
-	          points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
-	        } else if (points0.length) {
-	          segment();
-	          points0 = [];
-	          points1 = [];
-	        }
-	      }
-	      if (points0.length) segment();
-	      return segments.length ? segments.join("") : null;
-	    }
-	    area.x = function(_) {
-	      if (!arguments.length) return x1;
-	      x0 = x1 = _;
-	      return area;
-	    };
-	    area.x0 = function(_) {
-	      if (!arguments.length) return x0;
-	      x0 = _;
-	      return area;
-	    };
-	    area.x1 = function(_) {
-	      if (!arguments.length) return x1;
-	      x1 = _;
-	      return area;
-	    };
-	    area.y = function(_) {
-	      if (!arguments.length) return y1;
-	      y0 = y1 = _;
-	      return area;
-	    };
-	    area.y0 = function(_) {
-	      if (!arguments.length) return y0;
-	      y0 = _;
-	      return area;
-	    };
-	    area.y1 = function(_) {
-	      if (!arguments.length) return y1;
-	      y1 = _;
-	      return area;
-	    };
-	    area.defined = function(_) {
-	      if (!arguments.length) return defined;
-	      defined = _;
-	      return area;
-	    };
-	    area.interpolate = function(_) {
-	      if (!arguments.length) return interpolateKey;
-	      if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
-	      interpolateReverse = interpolate.reverse || interpolate;
-	      L = interpolate.closed ? "M" : "L";
-	      return area;
-	    };
-	    area.tension = function(_) {
-	      if (!arguments.length) return tension;
-	      tension = _;
-	      return area;
-	    };
-	    return area;
-	  }
-	  d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
-	  d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
-	  d3.svg.area = function() {
-	    return d3_svg_area(d3_identity);
-	  };
-	  d3.svg.area.radial = function() {
-	    var area = d3_svg_area(d3_svg_lineRadial);
-	    area.radius = area.x, delete area.x;
-	    area.innerRadius = area.x0, delete area.x0;
-	    area.outerRadius = area.x1, delete area.x1;
-	    area.angle = area.y, delete area.y;
-	    area.startAngle = area.y0, delete area.y0;
-	    area.endAngle = area.y1, delete area.y1;
-	    return area;
-	  };
-	  d3.svg.chord = function() {
-	    var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
-	    function chord(d, i) {
-	      var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
-	      return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
-	    }
-	    function subgroup(self, f, d, i) {
-	      var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) - halfπ, a1 = endAngle.call(self, subgroup, i) - halfπ;
-	      return {
-	        r: r,
-	        a0: a0,
-	        a1: a1,
-	        p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
-	        p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
-	      };
-	    }
-	    function equals(a, b) {
-	      return a.a0 == b.a0 && a.a1 == b.a1;
-	    }
-	    function arc(r, p, a) {
-	      return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
-	    }
-	    function curve(r0, p0, r1, p1) {
-	      return "Q 0,0 " + p1;
-	    }
-	    chord.radius = function(v) {
-	      if (!arguments.length) return radius;
-	      radius = d3_functor(v);
-	      return chord;
-	    };
-	    chord.source = function(v) {
-	      if (!arguments.length) return source;
-	      source = d3_functor(v);
-	      return chord;
-	    };
-	    chord.target = function(v) {
-	      if (!arguments.length) return target;
-	      target = d3_functor(v);
-	      return chord;
-	    };
-	    chord.startAngle = function(v) {
-	      if (!arguments.length) return startAngle;
-	      startAngle = d3_functor(v);
-	      return chord;
-	    };
-	    chord.endAngle = function(v) {
-	      if (!arguments.length) return endAngle;
-	      endAngle = d3_functor(v);
-	      return chord;
-	    };
-	    return chord;
-	  };
-	  function d3_svg_chordRadius(d) {
-	    return d.radius;
-	  }
-	  d3.svg.diagonal = function() {
-	    var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
-	    function diagonal(d, i) {
-	      var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
-	        x: p0.x,
-	        y: m
-	      }, {
-	        x: p3.x,
-	        y: m
-	      }, p3 ];
-	      p = p.map(projection);
-	      return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
-	    }
-	    diagonal.source = function(x) {
-	      if (!arguments.length) return source;
-	      source = d3_functor(x);
-	      return diagonal;
-	    };
-	    diagonal.target = function(x) {
-	      if (!arguments.length) return target;
-	      target = d3_functor(x);
-	      return diagonal;
-	    };
-	    diagonal.projection = function(x) {
-	      if (!arguments.length) return projection;
-	      projection = x;
-	      return diagonal;
-	    };
-	    return diagonal;
-	  };
-	  function d3_svg_diagonalProjection(d) {
-	    return [ d.x, d.y ];
-	  }
-	  d3.svg.diagonal.radial = function() {
-	    var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
-	    diagonal.projection = function(x) {
-	      return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
-	    };
-	    return diagonal;
-	  };
-	  function d3_svg_diagonalRadialProjection(projection) {
-	    return function() {
-	      var d = projection.apply(this, arguments), r = d[0], a = d[1] - halfπ;
-	      return [ r * Math.cos(a), r * Math.sin(a) ];
-	    };
-	  }
-	  d3.svg.symbol = function() {
-	    var type = d3_svg_symbolType, size = d3_svg_symbolSize;
-	    function symbol(d, i) {
-	      return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
-	    }
-	    symbol.type = function(x) {
-	      if (!arguments.length) return type;
-	      type = d3_functor(x);
-	      return symbol;
-	    };
-	    symbol.size = function(x) {
-	      if (!arguments.length) return size;
-	      size = d3_functor(x);
-	      return symbol;
-	    };
-	    return symbol;
-	  };
-	  function d3_svg_symbolSize() {
-	    return 64;
-	  }
-	  function d3_svg_symbolType() {
-	    return "circle";
-	  }
-	  function d3_svg_symbolCircle(size) {
-	    var r = Math.sqrt(size / π);
-	    return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
-	  }
-	  var d3_svg_symbols = d3.map({
-	    circle: d3_svg_symbolCircle,
-	    cross: function(size) {
-	      var r = Math.sqrt(size / 5) / 2;
-	      return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
-	    },
-	    diamond: function(size) {
-	      var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
-	      return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
-	    },
-	    square: function(size) {
-	      var r = Math.sqrt(size) / 2;
-	      return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
-	    },
-	    "triangle-down": function(size) {
-	      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
-	      return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
-	    },
-	    "triangle-up": function(size) {
-	      var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
-	      return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
-	    }
-	  });
-	  d3.svg.symbolTypes = d3_svg_symbols.keys();
-	  var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
-	  d3_selectionPrototype.transition = function(name) {
-	    var id = d3_transitionInheritId || ++d3_transitionId, ns = d3_transitionNamespace(name), subgroups = [], subgroup, node, transition = d3_transitionInherit || {
-	      time: Date.now(),
-	      ease: d3_ease_cubicInOut,
-	      delay: 0,
-	      duration: 250
-	    };
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      subgroups.push(subgroup = []);
-	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-	        if (node = group[i]) d3_transitionNode(node, i, ns, id, transition);
-	        subgroup.push(node);
-	      }
-	    }
-	    return d3_transition(subgroups, ns, id);
-	  };
-	  d3_selectionPrototype.interrupt = function(name) {
-	    return this.each(name == null ? d3_selection_interrupt : d3_selection_interruptNS(d3_transitionNamespace(name)));
-	  };
-	  var d3_selection_interrupt = d3_selection_interruptNS(d3_transitionNamespace());
-	  function d3_selection_interruptNS(ns) {
-	    return function() {
-	      var lock, activeId, active;
-	      if ((lock = this[ns]) && (active = lock[activeId = lock.active])) {
-	        active.timer.c = null;
-	        active.timer.t = NaN;
-	        if (--lock.count) delete lock[activeId]; else delete this[ns];
-	        lock.active += .5;
-	        active.event && active.event.interrupt.call(this, this.__data__, active.index);
-	      }
-	    };
-	  }
-	  function d3_transition(groups, ns, id) {
-	    d3_subclass(groups, d3_transitionPrototype);
-	    groups.namespace = ns;
-	    groups.id = id;
-	    return groups;
-	  }
-	  var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;
-	  d3_transitionPrototype.call = d3_selectionPrototype.call;
-	  d3_transitionPrototype.empty = d3_selectionPrototype.empty;
-	  d3_transitionPrototype.node = d3_selectionPrototype.node;
-	  d3_transitionPrototype.size = d3_selectionPrototype.size;
-	  d3.transition = function(selection, name) {
-	    return selection && selection.transition ? d3_transitionInheritId ? selection.transition(name) : selection : d3.selection().transition(selection);
-	  };
-	  d3.transition.prototype = d3_transitionPrototype;
-	  d3_transitionPrototype.select = function(selector) {
-	    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnode, node;
-	    selector = d3_selection_selector(selector);
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      subgroups.push(subgroup = []);
-	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-	        if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {
-	          if ("__data__" in node) subnode.__data__ = node.__data__;
-	          d3_transitionNode(subnode, i, ns, id, node[ns][id]);
-	          subgroup.push(subnode);
-	        } else {
-	          subgroup.push(null);
-	        }
-	      }
-	    }
-	    return d3_transition(subgroups, ns, id);
-	  };
-	  d3_transitionPrototype.selectAll = function(selector) {
-	    var id = this.id, ns = this.namespace, subgroups = [], subgroup, subnodes, node, subnode, transition;
-	    selector = d3_selection_selectorAll(selector);
-	    for (var j = -1, m = this.length; ++j < m; ) {
-	      for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
-	        if (node = group[i]) {
-	          transition = node[ns][id];
-	          subnodes = selector.call(node, node.__data__, i, j);
-	          subgroups.push(subgroup = []);
-	          for (var k = -1, o = subnodes.length; ++k < o; ) {
-	            if (subnode = subnodes[k]) d3_transitionNode(subnode, k, ns, id, transition);
-	            subgroup.push(subnode);
-	          }
-	        }
-	      }
-	    }
-	    return d3_transition(subgroups, ns, id);
-	  };
-	  d3_transitionPrototype.filter = function(filter) {
-	    var subgroups = [], subgroup, group, node;
-	    if (typeof filter !== "function") filter = d3_selection_filter(filter);
-	    for (var j = 0, m = this.length; j < m; j++) {
-	      subgroups.push(subgroup = []);
-	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-	        if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
-	          subgroup.push(node);
-	        }
-	      }
-	    }
-	    return d3_transition(subgroups, this.namespace, this.id);
-	  };
-	  d3_transitionPrototype.tween = function(name, tween) {
-	    var id = this.id, ns = this.namespace;
-	    if (arguments.length < 2) return this.node()[ns][id].tween.get(name);
-	    return d3_selection_each(this, tween == null ? function(node) {
-	      node[ns][id].tween.remove(name);
-	    } : function(node) {
-	      node[ns][id].tween.set(name, tween);
-	    });
-	  };
-	  function d3_transition_tween(groups, name, value, tween) {
-	    var id = groups.id, ns = groups.namespace;
-	    return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
-	      node[ns][id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
-	    } : (value = tween(value), function(node) {
-	      node[ns][id].tween.set(name, value);
-	    }));
-	  }
-	  d3_transitionPrototype.attr = function(nameNS, value) {
-	    if (arguments.length < 2) {
-	      for (value in nameNS) this.attr(value, nameNS[value]);
-	      return this;
-	    }
-	    var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);
-	    function attrNull() {
-	      this.removeAttribute(name);
-	    }
-	    function attrNullNS() {
-	      this.removeAttributeNS(name.space, name.local);
-	    }
-	    function attrTween(b) {
-	      return b == null ? attrNull : (b += "", function() {
-	        var a = this.getAttribute(name), i;
-	        return a !== b && (i = interpolate(a, b), function(t) {
-	          this.setAttribute(name, i(t));
-	        });
-	      });
-	    }
-	    function attrTweenNS(b) {
-	      return b == null ? attrNullNS : (b += "", function() {
-	        var a = this.getAttributeNS(name.space, name.local), i;
-	        return a !== b && (i = interpolate(a, b), function(t) {
-	          this.setAttributeNS(name.space, name.local, i(t));
-	        });
-	      });
-	    }
-	    return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween);
-	  };
-	  d3_transitionPrototype.attrTween = function(nameNS, tween) {
-	    var name = d3.ns.qualify(nameNS);
-	    function attrTween(d, i) {
-	      var f = tween.call(this, d, i, this.getAttribute(name));
-	      return f && function(t) {
-	        this.setAttribute(name, f(t));
-	      };
-	    }
-	    function attrTweenNS(d, i) {
-	      var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
-	      return f && function(t) {
-	        this.setAttributeNS(name.space, name.local, f(t));
-	      };
-	    }
-	    return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
-	  };
-	  d3_transitionPrototype.style = function(name, value, priority) {
-	    var n = arguments.length;
-	    if (n < 3) {
-	      if (typeof name !== "string") {
-	        if (n < 2) value = "";
-	        for (priority in name) this.style(priority, name[priority], value);
-	        return this;
-	      }
-	      priority = "";
-	    }
-	    function styleNull() {
-	      this.style.removeProperty(name);
-	    }
-	    function styleString(b) {
-	      return b == null ? styleNull : (b += "", function() {
-	        var a = d3_window(this).getComputedStyle(this, null).getPropertyValue(name), i;
-	        return a !== b && (i = d3_interpolate(a, b), function(t) {
-	          this.style.setProperty(name, i(t), priority);
-	        });
-	      });
-	    }
-	    return d3_transition_tween(this, "style." + name, value, styleString);
-	  };
-	  d3_transitionPrototype.styleTween = function(name, tween, priority) {
-	    if (arguments.length < 3) priority = "";
-	    function styleTween(d, i) {
-	      var f = tween.call(this, d, i, d3_window(this).getComputedStyle(this, null).getPropertyValue(name));
-	      return f && function(t) {
-	        this.style.setProperty(name, f(t), priority);
-	      };
-	    }
-	    return this.tween("style." + name, styleTween);
-	  };
-	  d3_transitionPrototype.text = function(value) {
-	    return d3_transition_tween(this, "text", value, d3_transition_text);
-	  };
-	  function d3_transition_text(b) {
-	    if (b == null) b = "";
-	    return function() {
-	      this.textContent = b;
-	    };
-	  }
-	  d3_transitionPrototype.remove = function() {
-	    var ns = this.namespace;
-	    return this.each("end.transition", function() {
-	      var p;
-	      if (this[ns].count < 2 && (p = this.parentNode)) p.removeChild(this);
-	    });
-	  };
-	  d3_transitionPrototype.ease = function(value) {
-	    var id = this.id, ns = this.namespace;
-	    if (arguments.length < 1) return this.node()[ns][id].ease;
-	    if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
-	    return d3_selection_each(this, function(node) {
-	      node[ns][id].ease = value;
-	    });
-	  };
-	  d3_transitionPrototype.delay = function(value) {
-	    var id = this.id, ns = this.namespace;
-	    if (arguments.length < 1) return this.node()[ns][id].delay;
-	    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
-	      node[ns][id].delay = +value.call(node, node.__data__, i, j);
-	    } : (value = +value, function(node) {
-	      node[ns][id].delay = value;
-	    }));
-	  };
-	  d3_transitionPrototype.duration = function(value) {
-	    var id = this.id, ns = this.namespace;
-	    if (arguments.length < 1) return this.node()[ns][id].duration;
-	    return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
-	      node[ns][id].duration = Math.max(1, value.call(node, node.__data__, i, j));
-	    } : (value = Math.max(1, value), function(node) {
-	      node[ns][id].duration = value;
-	    }));
-	  };
-	  d3_transitionPrototype.each = function(type, listener) {
-	    var id = this.id, ns = this.namespace;
-	    if (arguments.length < 2) {
-	      var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
-	      try {
-	        d3_transitionInheritId = id;
-	        d3_selection_each(this, function(node, i, j) {
-	          d3_transitionInherit = node[ns][id];
-	          type.call(node, node.__data__, i, j);
-	        });
-	      } finally {
-	        d3_transitionInherit = inherit;
-	        d3_transitionInheritId = inheritId;
-	      }
-	    } else {
-	      d3_selection_each(this, function(node) {
-	        var transition = node[ns][id];
-	        (transition.event || (transition.event = d3.dispatch("start", "end", "interrupt"))).on(type, listener);
-	      });
-	    }
-	    return this;
-	  };
-	  d3_transitionPrototype.transition = function() {
-	    var id0 = this.id, id1 = ++d3_transitionId, ns = this.namespace, subgroups = [], subgroup, group, node, transition;
-	    for (var j = 0, m = this.length; j < m; j++) {
-	      subgroups.push(subgroup = []);
-	      for (var group = this[j], i = 0, n = group.length; i < n; i++) {
-	        if (node = group[i]) {
-	          transition = node[ns][id0];
-	          d3_transitionNode(node, i, ns, id1, {
-	            time: transition.time,
-	            ease: transition.ease,
-	            delay: transition.delay + transition.duration,
-	            duration: transition.duration
-	          });
-	        }
-	        subgroup.push(node);
-	      }
-	    }
-	    return d3_transition(subgroups, ns, id1);
-	  };
-	  function d3_transitionNamespace(name) {
-	    return name == null ? "__transition__" : "__transition_" + name + "__";
-	  }
-	  function d3_transitionNode(node, i, ns, id, inherit) {
-	    var lock = node[ns] || (node[ns] = {
-	      active: 0,
-	      count: 0
-	    }), transition = lock[id], time, timer, duration, ease, tweens;
-	    function schedule(elapsed) {
-	      var delay = transition.delay;
-	      timer.t = delay + time;
-	      if (delay <= elapsed) return start(elapsed - delay);
-	      timer.c = start;
-	    }
-	    function start(elapsed) {
-	      var activeId = lock.active, active = lock[activeId];
-	      if (active) {
-	        active.timer.c = null;
-	        active.timer.t = NaN;
-	        --lock.count;
-	        delete lock[activeId];
-	        active.event && active.event.interrupt.call(node, node.__data__, active.index);
-	      }
-	      for (var cancelId in lock) {
-	        if (+cancelId < id) {
-	          var cancel = lock[cancelId];
-	          cancel.timer.c = null;
-	          cancel.timer.t = NaN;
-	          --lock.count;
-	          delete lock[cancelId];
-	        }
-	      }
-	      timer.c = tick;
-	      d3_timer(function() {
-	        if (timer.c && tick(elapsed || 1)) {
-	          timer.c = null;
-	          timer.t = NaN;
-	        }
-	        return 1;
-	      }, 0, time);
-	      lock.active = id;
-	      transition.event && transition.event.start.call(node, node.__data__, i);
-	      tweens = [];
-	      transition.tween.forEach(function(key, value) {
-	        if (value = value.call(node, node.__data__, i)) {
-	          tweens.push(value);
-	        }
-	      });
-	      ease = transition.ease;
-	      duration = transition.duration;
-	    }
-	    function tick(elapsed) {
-	      var t = elapsed / duration, e = ease(t), n = tweens.length;
-	      while (n > 0) {
-	        tweens[--n].call(node, e);
-	      }
-	      if (t >= 1) {
-	        transition.event && transition.event.end.call(node, node.__data__, i);
-	        if (--lock.count) delete lock[id]; else delete node[ns];
-	        return 1;
-	      }
-	    }
-	    if (!transition) {
-	      time = inherit.time;
-	      timer = d3_timer(schedule, 0, time);
-	      transition = lock[id] = {
-	        tween: new d3_Map(),
-	        time: time,
-	        timer: timer,
-	        delay: inherit.delay,
-	        duration: inherit.duration,
-	        ease: inherit.ease,
-	        index: i
-	      };
-	      inherit = null;
-	      ++lock.count;
-	    }
-	  }
-	  d3.svg.axis = function() {
-	    var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;
-	    function axis(g) {
-	      g.each(function() {
-	        var g = d3.select(this);
-	        var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();
-	        var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickSpacing = Math.max(innerTickSize, 0) + tickPadding, tickTransform;
-	        var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"), 
-	        d3.transition(path));
-	        tickEnter.append("line");
-	        tickEnter.append("text");
-	        var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text"), sign = orient === "top" || orient === "left" ? -1 : 1, x1, x2, y1, y2;
-	        if (orient === "bottom" || orient === "top") {
-	          tickTransform = d3_svg_axisX, x1 = "x", y1 = "y", x2 = "x2", y2 = "y2";
-	          text.attr("dy", sign < 0 ? "0em" : ".71em").style("text-anchor", "middle");
-	          pathUpdate.attr("d", "M" + range[0] + "," + sign * outerTickSize + "V0H" + range[1] + "V" + sign * outerTickSize);
-	        } else {
-	          tickTransform = d3_svg_axisY, x1 = "y", y1 = "x", x2 = "y2", y2 = "x2";
-	          text.attr("dy", ".32em").style("text-anchor", sign < 0 ? "end" : "start");
-	          pathUpdate.attr("d", "M" + sign * outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + sign * outerTickSize);
-	        }
-	        lineEnter.attr(y2, sign * innerTickSize);
-	        textEnter.attr(y1, sign * tickSpacing);
-	        lineUpdate.attr(x2, 0).attr(y2, sign * innerTickSize);
-	        textUpdate.attr(x1, 0).attr(y1, sign * tickSpacing);
-	        if (scale1.rangeBand) {
-	          var x = scale1, dx = x.rangeBand() / 2;
-	          scale0 = scale1 = function(d) {
-	            return x(d) + dx;
-	          };
-	        } else if (scale0.rangeBand) {
-	          scale0 = scale1;
-	        } else {
-	          tickExit.call(tickTransform, scale1, scale0);
-	        }
-	        tickEnter.call(tickTransform, scale0, scale1);
-	        tickUpdate.call(tickTransform, scale1, scale1);
-	      });
-	    }
-	    axis.scale = function(x) {
-	      if (!arguments.length) return scale;
-	      scale = x;
-	      return axis;
-	    };
-	    axis.orient = function(x) {
-	      if (!arguments.length) return orient;
-	      orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
-	      return axis;
-	    };
-	    axis.ticks = function() {
-	      if (!arguments.length) return tickArguments_;
-	      tickArguments_ = d3_array(arguments);
-	      return axis;
-	    };
-	    axis.tickValues = function(x) {
-	      if (!arguments.length) return tickValues;
-	      tickValues = x;
-	      return axis;
-	    };
-	    axis.tickFormat = function(x) {
-	      if (!arguments.length) return tickFormat_;
-	      tickFormat_ = x;
-	      return axis;
-	    };
-	    axis.tickSize = function(x) {
-	      var n = arguments.length;
-	      if (!n) return innerTickSize;
-	      innerTickSize = +x;
-	      outerTickSize = +arguments[n - 1];
-	      return axis;
-	    };
-	    axis.innerTickSize = function(x) {
-	      if (!arguments.length) return innerTickSize;
-	      innerTickSize = +x;
-	      return axis;
-	    };
-	    axis.outerTickSize = function(x) {
-	      if (!arguments.length) return outerTickSize;
-	      outerTickSize = +x;
-	      return axis;
-	    };
-	    axis.tickPadding = function(x) {
-	      if (!arguments.length) return tickPadding;
-	      tickPadding = +x;
-	      return axis;
-	    };
-	    axis.tickSubdivide = function() {
-	      return arguments.length && axis;
-	    };
-	    return axis;
-	  };
-	  var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
-	    top: 1,
-	    right: 1,
-	    bottom: 1,
-	    left: 1
-	  };
-	  function d3_svg_axisX(selection, x0, x1) {
-	    selection.attr("transform", function(d) {
-	      var v0 = x0(d);
-	      return "translate(" + (isFinite(v0) ? v0 : x1(d)) + ",0)";
-	    });
-	  }
-	  function d3_svg_axisY(selection, y0, y1) {
-	    selection.attr("transform", function(d) {
-	      var v0 = y0(d);
-	      return "translate(0," + (isFinite(v0) ? v0 : y1(d)) + ")";
-	    });
-	  }
-	  d3.svg.brush = function() {
-	    var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];
-	    function brush(g) {
-	      g.each(function() {
-	        var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
-	        var background = g.selectAll(".background").data([ 0 ]);
-	        background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
-	        g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move");
-	        var resize = g.selectAll(".resize").data(resizes, d3_identity);
-	        resize.exit().remove();
-	        resize.enter().append("g").attr("class", function(d) {
-	          return "resize " + d;
-	        }).style("cursor", function(d) {
-	          return d3_svg_brushCursor[d];
-	        }).append("rect").attr("x", function(d) {
-	          return /[ew]$/.test(d) ? -3 : null;
-	        }).attr("y", function(d) {
-	          return /^[ns]/.test(d) ? -3 : null;
-	        }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
-	        resize.style("display", brush.empty() ? "none" : null);
-	        var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;
-	        if (x) {
-	          range = d3_scaleRange(x);
-	          backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]);
-	          redrawX(gUpdate);
-	        }
-	        if (y) {
-	          range = d3_scaleRange(y);
-	          backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]);
-	          redrawY(gUpdate);
-	        }
-	        redraw(gUpdate);
-	      });
-	    }
-	    brush.event = function(g) {
-	      g.each(function() {
-	        var event_ = event.of(this, arguments), extent1 = {
-	          x: xExtent,
-	          y: yExtent,
-	          i: xExtentDomain,
-	          j: yExtentDomain
-	        }, extent0 = this.__chart__ || extent1;
-	        this.__chart__ = extent1;
-	        if (d3_transitionInheritId) {
-	          d3.select(this).transition().each("start.brush", function() {
-	            xExtentDomain = extent0.i;
-	            yExtentDomain = extent0.j;
-	            xExtent = extent0.x;
-	            yExtent = extent0.y;
-	            event_({
-	              type: "brushstart"
-	            });
-	          }).tween("brush:brush", function() {
-	            var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);
-	            xExtentDomain = yExtentDomain = null;
-	            return function(t) {
-	              xExtent = extent1.x = xi(t);
-	              yExtent = extent1.y = yi(t);
-	              event_({
-	                type: "brush",
-	                mode: "resize"
-	              });
-	            };
-	          }).each("end.brush", function() {
-	            xExtentDomain = extent1.i;
-	            yExtentDomain = extent1.j;
-	            event_({
-	              type: "brush",
-	              mode: "resize"
-	            });
-	            event_({
-	              type: "brushend"
-	            });
-	          });
-	        } else {
-	          event_({
-	            type: "brushstart"
-	          });
-	          event_({
-	            type: "brush",
-	            mode: "resize"
-	          });
-	          event_({
-	            type: "brushend"
-	          });
-	        }
-	      });
-	    };
-	    function redraw(g) {
-	      g.selectAll(".resize").attr("transform", function(d) {
-	        return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")";
-	      });
-	    }
-	    function redrawX(g) {
-	      g.select(".extent").attr("x", xExtent[0]);
-	      g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]);
-	    }
-	    function redrawY(g) {
-	      g.select(".extent").attr("y", yExtent[0]);
-	      g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]);
-	    }
-	    function brushstart() {
-	      var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(target), center, origin = d3.mouse(target), offset;
-	      var w = d3.select(d3_window(target)).on("keydown.brush", keydown).on("keyup.brush", keyup);
-	      if (d3.event.changedTouches) {
-	        w.on("touchmove.brush", brushmove).on("touchend.brush", brushend);
-	      } else {
-	        w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend);
-	      }
-	      g.interrupt().selectAll("*").interrupt();
-	      if (dragging) {
-	        origin[0] = xExtent[0] - origin[0];
-	        origin[1] = yExtent[0] - origin[1];
-	      } else if (resizing) {
-	        var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
-	        offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];
-	        origin[0] = xExtent[ex];
-	        origin[1] = yExtent[ey];
-	      } else if (d3.event.altKey) center = origin.slice();
-	      g.style("pointer-events", "none").selectAll(".resize").style("display", null);
-	      d3.select("body").style("cursor", eventTarget.style("cursor"));
-	      event_({
-	        type: "brushstart"
-	      });
-	      brushmove();
-	      function keydown() {
-	        if (d3.event.keyCode == 32) {
-	          if (!dragging) {
-	            center = null;
-	            origin[0] -= xExtent[1];
-	            origin[1] -= yExtent[1];
-	            dragging = 2;
-	          }
-	          d3_eventPreventDefault();
-	        }
-	      }
-	      function keyup() {
-	        if (d3.event.keyCode == 32 && dragging == 2) {
-	          origin[0] += xExtent[1];
-	          origin[1] += yExtent[1];
-	          dragging = 0;
-	          d3_eventPreventDefault();
-	        }
-	      }
-	      function brushmove() {
-	        var point = d3.mouse(target), moved = false;
-	        if (offset) {
-	          point[0] += offset[0];
-	          point[1] += offset[1];
-	        }
-	        if (!dragging) {
-	          if (d3.event.altKey) {
-	            if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];
-	            origin[0] = xExtent[+(point[0] < center[0])];
-	            origin[1] = yExtent[+(point[1] < center[1])];
-	          } else center = null;
-	        }
-	        if (resizingX && move1(point, x, 0)) {
-	          redrawX(g);
-	          moved = true;
-	        }
-	        if (resizingY && move1(point, y, 1)) {
-	          redrawY(g);
-	          moved = true;
-	        }
-	        if (moved) {
-	          redraw(g);
-	          event_({
-	            type: "brush",
-	            mode: dragging ? "move" : "resize"
-	          });
-	        }
-	      }
-	      function move1(point, scale, i) {
-	        var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;
-	        if (dragging) {
-	          r0 -= position;
-	          r1 -= size + position;
-	        }
-	        min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];
-	        if (dragging) {
-	          max = (min += position) + size;
-	        } else {
-	          if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
-	          if (position < min) {
-	            max = min;
-	            min = position;
-	          } else {
-	            max = position;
-	          }
-	        }
-	        if (extent[0] != min || extent[1] != max) {
-	          if (i) yExtentDomain = null; else xExtentDomain = null;
-	          extent[0] = min;
-	          extent[1] = max;
-	          return true;
-	        }
-	      }
-	      function brushend() {
-	        brushmove();
-	        g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
-	        d3.select("body").style("cursor", null);
-	        w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
-	        dragRestore();
-	        event_({
-	          type: "brushend"
-	        });
-	      }
-	    }
-	    brush.x = function(z) {
-	      if (!arguments.length) return x;
-	      x = z;
-	      resizes = d3_svg_brushResizes[!x << 1 | !y];
-	      return brush;
-	    };
-	    brush.y = function(z) {
-	      if (!arguments.length) return y;
-	      y = z;
-	      resizes = d3_svg_brushResizes[!x << 1 | !y];
-	      return brush;
-	    };
-	    brush.clamp = function(z) {
-	      if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;
-	      if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;
-	      return brush;
-	    };
-	    brush.extent = function(z) {
-	      var x0, x1, y0, y1, t;
-	      if (!arguments.length) {
-	        if (x) {
-	          if (xExtentDomain) {
-	            x0 = xExtentDomain[0], x1 = xExtentDomain[1];
-	          } else {
-	            x0 = xExtent[0], x1 = xExtent[1];
-	            if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
-	            if (x1 < x0) t = x0, x0 = x1, x1 = t;
-	          }
-	        }
-	        if (y) {
-	          if (yExtentDomain) {
-	            y0 = yExtentDomain[0], y1 = yExtentDomain[1];
-	          } else {
-	            y0 = yExtent[0], y1 = yExtent[1];
-	            if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
-	            if (y1 < y0) t = y0, y0 = y1, y1 = t;
-	          }
-	        }
-	        return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
-	      }
-	      if (x) {
-	        x0 = z[0], x1 = z[1];
-	        if (y) x0 = x0[0], x1 = x1[0];
-	        xExtentDomain = [ x0, x1 ];
-	        if (x.invert) x0 = x(x0), x1 = x(x1);
-	        if (x1 < x0) t = x0, x0 = x1, x1 = t;
-	        if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];
-	      }
-	      if (y) {
-	        y0 = z[0], y1 = z[1];
-	        if (x) y0 = y0[1], y1 = y1[1];
-	        yExtentDomain = [ y0, y1 ];
-	        if (y.invert) y0 = y(y0), y1 = y(y1);
-	        if (y1 < y0) t = y0, y0 = y1, y1 = t;
-	        if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];
-	      }
-	      return brush;
-	    };
-	    brush.clear = function() {
-	      if (!brush.empty()) {
-	        xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];
-	        xExtentDomain = yExtentDomain = null;
-	      }
-	      return brush;
-	    };
-	    brush.empty = function() {
-	      return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];
-	    };
-	    return d3.rebind(brush, event, "on");
-	  };
-	  var d3_svg_brushCursor = {
-	    n: "ns-resize",
-	    e: "ew-resize",
-	    s: "ns-resize",
-	    w: "ew-resize",
-	    nw: "nwse-resize",
-	    ne: "nesw-resize",
-	    se: "nwse-resize",
-	    sw: "nesw-resize"
-	  };
-	  var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
-	  var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;
-	  var d3_time_formatUtc = d3_time_format.utc;
-	  var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ");
-	  d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
-	  function d3_time_formatIsoNative(date) {
-	    return date.toISOString();
-	  }
-	  d3_time_formatIsoNative.parse = function(string) {
-	    var date = new Date(string);
-	    return isNaN(date) ? null : date;
-	  };
-	  d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
-	  d3_time.second = d3_time_interval(function(date) {
-	    return new d3_date(Math.floor(date / 1e3) * 1e3);
-	  }, function(date, offset) {
-	    date.setTime(date.getTime() + Math.floor(offset) * 1e3);
-	  }, function(date) {
-	    return date.getSeconds();
-	  });
-	  d3_time.seconds = d3_time.second.range;
-	  d3_time.seconds.utc = d3_time.second.utc.range;
-	  d3_time.minute = d3_time_interval(function(date) {
-	    return new d3_date(Math.floor(date / 6e4) * 6e4);
-	  }, function(date, offset) {
-	    date.setTime(date.getTime() + Math.floor(offset) * 6e4);
-	  }, function(date) {
-	    return date.getMinutes();
-	  });
-	  d3_time.minutes = d3_time.minute.range;
-	  d3_time.minutes.utc = d3_time.minute.utc.range;
-	  d3_time.hour = d3_time_interval(function(date) {
-	    var timezone = date.getTimezoneOffset() / 60;
-	    return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
-	  }, function(date, offset) {
-	    date.setTime(date.getTime() + Math.floor(offset) * 36e5);
-	  }, function(date) {
-	    return date.getHours();
-	  });
-	  d3_time.hours = d3_time.hour.range;
-	  d3_time.hours.utc = d3_time.hour.utc.range;
-	  d3_time.month = d3_time_interval(function(date) {
-	    date = d3_time.day(date);
-	    date.setDate(1);
-	    return date;
-	  }, function(date, offset) {
-	    date.setMonth(date.getMonth() + offset);
-	  }, function(date) {
-	    return date.getMonth();
-	  });
-	  d3_time.months = d3_time.month.range;
-	  d3_time.months.utc = d3_time.month.utc.range;
-	  function d3_time_scale(linear, methods, format) {
-	    function scale(x) {
-	      return linear(x);
-	    }
-	    scale.invert = function(x) {
-	      return d3_time_scaleDate(linear.invert(x));
-	    };
-	    scale.domain = function(x) {
-	      if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
-	      linear.domain(x);
-	      return scale;
-	    };
-	    function tickMethod(extent, count) {
-	      var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);
-	      return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {
-	        return d / 31536e6;
-	      }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];
-	    }
-	    scale.nice = function(interval, skip) {
-	      var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval);
-	      if (method) interval = method[0], skip = method[1];
-	      function skipped(date) {
-	        return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;
-	      }
-	      return scale.domain(d3_scale_nice(domain, skip > 1 ? {
-	        floor: function(date) {
-	          while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);
-	          return date;
-	        },
-	        ceil: function(date) {
-	          while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);
-	          return date;
-	        }
-	      } : interval));
-	    };
-	    scale.ticks = function(interval, skip) {
-	      var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ {
-	        range: interval
-	      }, skip ];
-	      if (method) interval = method[0], skip = method[1];
-	      return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);
-	    };
-	    scale.tickFormat = function() {
-	      return format;
-	    };
-	    scale.copy = function() {
-	      return d3_time_scale(linear.copy(), methods, format);
-	    };
-	    return d3_scale_linearRebind(scale, linear);
-	  }
-	  function d3_time_scaleDate(t) {
-	    return new Date(t);
-	  }
-	  var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
-	  var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];
-	  var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) {
-	    return d.getMilliseconds();
-	  } ], [ ":%S", function(d) {
-	    return d.getSeconds();
-	  } ], [ "%I:%M", function(d) {
-	    return d.getMinutes();
-	  } ], [ "%I %p", function(d) {
-	    return d.getHours();
-	  } ], [ "%a %d", function(d) {
-	    return d.getDay() && d.getDate() != 1;
-	  } ], [ "%b %d", function(d) {
-	    return d.getDate() != 1;
-	  } ], [ "%B", function(d) {
-	    return d.getMonth();
-	  } ], [ "%Y", d3_true ] ]);
-	  var d3_time_scaleMilliseconds = {
-	    range: function(start, stop, step) {
-	      return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);
-	    },
-	    floor: d3_identity,
-	    ceil: d3_identity
-	  };
-	  d3_time_scaleLocalMethods.year = d3_time.year;
-	  d3_time.scale = function() {
-	    return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
-	  };
-	  var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {
-	    return [ m[0].utc, m[1] ];
-	  });
-	  var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) {
-	    return d.getUTCMilliseconds();
-	  } ], [ ":%S", function(d) {
-	    return d.getUTCSeconds();
-	  } ], [ "%I:%M", function(d) {
-	    return d.getUTCMinutes();
-	  } ], [ "%I %p", function(d) {
-	    return d.getUTCHours();
-	  } ], [ "%a %d", function(d) {
-	    return d.getUTCDay() && d.getUTCDate() != 1;
-	  } ], [ "%b %d", function(d) {
-	    return d.getUTCDate() != 1;
-	  } ], [ "%B", function(d) {
-	    return d.getUTCMonth();
-	  } ], [ "%Y", d3_true ] ]);
-	  d3_time_scaleUtcMethods.year = d3_time.year.utc;
-	  d3_time.scale.utc = function() {
-	    return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);
-	  };
-	  d3.text = d3_xhrType(function(request) {
-	    return request.responseText;
-	  });
-	  d3.json = function(url, callback) {
-	    return d3_xhr(url, "application/json", d3_json, callback);
-	  };
-	  function d3_json(request) {
-	    return JSON.parse(request.responseText);
-	  }
-	  d3.html = function(url, callback) {
-	    return d3_xhr(url, "text/html", d3_html, callback);
-	  };
-	  function d3_html(request) {
-	    var range = d3_document.createRange();
-	    range.selectNode(d3_document.body);
-	    return range.createContextualFragment(request.responseText);
-	  }
-	  d3.xml = d3_xhrType(function(request) {
-	    return request.responseXML;
-	  });
-	  if (true) this.d3 = d3, !(__WEBPACK_AMD_DEFINE_FACTORY__ = (d3), __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? (__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) : __WEBPACK_AMD_DEFINE_FACTORY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)); else if (typeof module === "object" && module.exports) module.exports = d3; else this.d3 = d3;
-	}();
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/* WEBPACK VAR INJECTION */(function(global) {module.exports = global["hammerjs"] = __webpack_require__(4);
-	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var __WEBPACK_AMD_DEFINE_RESULT__;/*! Hammer.JS - v2.0.7 - 2016-04-22
-	 * http://hammerjs.github.io/
-	 *
-	 * Copyright (c) 2016 Jorik Tangelder;
-	 * Licensed under the MIT license */
-	(function(window, document, exportName, undefined) {
-	  'use strict';
-
-	var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];
-	var TEST_ELEMENT = document.createElement('div');
-
-	var TYPE_FUNCTION = 'function';
-
-	var round = Math.round;
-	var abs = Math.abs;
-	var now = Date.now;
-
-	/**
-	 * set a timeout with a given scope
-	 * @param {Function} fn
-	 * @param {Number} timeout
-	 * @param {Object} context
-	 * @returns {number}
-	 */
-	function setTimeoutContext(fn, timeout, context) {
-	    return setTimeout(bindFn(fn, context), timeout);
-	}
-
-	/**
-	 * if the argument is an array, we want to execute the fn on each entry
-	 * if it aint an array we don't want to do a thing.
-	 * this is used by all the methods that accept a single and array argument.
-	 * @param {*|Array} arg
-	 * @param {String} fn
-	 * @param {Object} [context]
-	 * @returns {Boolean}
-	 */
-	function invokeArrayArg(arg, fn, context) {
-	    if (Array.isArray(arg)) {
-	        each(arg, context[fn], context);
-	        return true;
-	    }
-	    return false;
-	}
-
-	/**
-	 * walk objects and arrays
-	 * @param {Object} obj
-	 * @param {Function} iterator
-	 * @param {Object} context
-	 */
-	function each(obj, iterator, context) {
-	    var i;
-
-	    if (!obj) {
-	        return;
-	    }
-
-	    if (obj.forEach) {
-	        obj.forEach(iterator, context);
-	    } else if (obj.length !== undefined) {
-	        i = 0;
-	        while (i < obj.length) {
-	            iterator.call(context, obj[i], i, obj);
-	            i++;
-	        }
-	    } else {
-	        for (i in obj) {
-	            obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);
-	        }
-	    }
-	}
-
-	/**
-	 * wrap a method with a deprecation warning and stack trace
-	 * @param {Function} method
-	 * @param {String} name
-	 * @param {String} message
-	 * @returns {Function} A new function wrapping the supplied method.
-	 */
-	function deprecate(method, name, message) {
-	    var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\n' + message + ' AT \n';
-	    return function() {
-	        var e = new Error('get-stack-trace');
-	        var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '')
-	            .replace(/^\s+at\s+/gm, '')
-	            .replace(/^Object.<anonymous>\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';
-
-	        var log = window.console && (window.console.warn || window.console.log);
-	        if (log) {
-	            log.call(window.console, deprecationMessage, stack);
-	        }
-	        return method.apply(this, arguments);
-	    };
-	}
-
-	/**
-	 * extend object.
-	 * means that properties in dest will be overwritten by the ones in src.
-	 * @param {Object} target
-	 * @param {...Object} objects_to_assign
-	 * @returns {Object} target
-	 */
-	var assign;
-	if (typeof Object.assign !== 'function') {
-	    assign = function assign(target) {
-	        if (target === undefined || target === null) {
-	            throw new TypeError('Cannot convert undefined or null to object');
-	        }
-
-	        var output = Object(target);
-	        for (var index = 1; index < arguments.length; index++) {
-	            var source = arguments[index];
-	            if (source !== undefined && source !== null) {
-	                for (var nextKey in source) {
-	                    if (source.hasOwnProperty(nextKey)) {
-	                        output[nextKey] = source[nextKey];
-	                    }
-	                }
-	            }
-	        }
-	        return output;
-	    };
-	} else {
-	    assign = Object.assign;
-	}
-
-	/**
-	 * extend object.
-	 * means that properties in dest will be overwritten by the ones in src.
-	 * @param {Object} dest
-	 * @param {Object} src
-	 * @param {Boolean} [merge=false]
-	 * @returns {Object} dest
-	 */
-	var extend = deprecate(function extend(dest, src, merge) {
-	    var keys = Object.keys(src);
-	    var i = 0;
-	    while (i < keys.length) {
-	        if (!merge || (merge && dest[keys[i]] === undefined)) {
-	            dest[keys[i]] = src[keys[i]];
-	        }
-	        i++;
-	    }
-	    return dest;
-	}, 'extend', 'Use `assign`.');
-
-	/**
-	 * merge the values from src in the dest.
-	 * means that properties that exist in dest will not be overwritten by src
-	 * @param {Object} dest
-	 * @param {Object} src
-	 * @returns {Object} dest
-	 */
-	var merge = deprecate(function merge(dest, src) {
-	    return extend(dest, src, true);
-	}, 'merge', 'Use `assign`.');
-
-	/**
-	 * simple class inheritance
-	 * @param {Function} child
-	 * @param {Function} base
-	 * @param {Object} [properties]
-	 */
-	function inherit(child, base, properties) {
-	    var baseP = base.prototype,
-	        childP;
-
-	    childP = child.prototype = Object.create(baseP);
-	    childP.constructor = child;
-	    childP._super = baseP;
-
-	    if (properties) {
-	        assign(childP, properties);
-	    }
-	}
-
-	/**
-	 * simple function bind
-	 * @param {Function} fn
-	 * @param {Object} context
-	 * @returns {Function}
-	 */
-	function bindFn(fn, context) {
-	    return function boundFn() {
-	        return fn.apply(context, arguments);
-	    };
-	}
-
-	/**
-	 * let a boolean value also be a function that must return a boolean
-	 * this first item in args will be used as the context
-	 * @param {Boolean|Function} val
-	 * @param {Array} [args]
-	 * @returns {Boolean}
-	 */
-	function boolOrFn(val, args) {
-	    if (typeof val == TYPE_FUNCTION) {
-	        return val.apply(args ? args[0] || undefined : undefined, args);
-	    }
-	    return val;
-	}
-
-	/**
-	 * use the val2 when val1 is undefined
-	 * @param {*} val1
-	 * @param {*} val2
-	 * @returns {*}
-	 */
-	function ifUndefined(val1, val2) {
-	    return (val1 === undefined) ? val2 : val1;
-	}
-
-	/**
-	 * addEventListener with multiple events at once
-	 * @param {EventTarget} target
-	 * @param {String} types
-	 * @param {Function} handler
-	 */
-	function addEventListeners(target, types, handler) {
-	    each(splitStr(types), function(type) {
-	        target.addEventListener(type, handler, false);
-	    });
-	}
-
-	/**
-	 * removeEventListener with multiple events at once
-	 * @param {EventTarget} target
-	 * @param {String} types
-	 * @param {Function} handler
-	 */
-	function removeEventListeners(target, types, handler) {
-	    each(splitStr(types), function(type) {
-	        target.removeEventListener(type, handler, false);
-	    });
-	}
-
-	/**
-	 * find if a node is in the given parent
-	 * @method hasParent
-	 * @param {HTMLElement} node
-	 * @param {HTMLElement} parent
-	 * @return {Boolean} found
-	 */
-	function hasParent(node, parent) {
-	    while (node) {
-	        if (node == parent) {
-	            return true;
-	        }
-	        node = node.parentNode;
-	    }
-	    return false;
-	}
-
-	/**
-	 * small indexOf wrapper
-	 * @param {String} str
-	 * @param {String} find
-	 * @returns {Boolean} found
-	 */
-	function inStr(str, find) {
-	    return str.indexOf(find) > -1;
-	}
-
-	/**
-	 * split string on whitespace
-	 * @param {String} str
-	 * @returns {Array} words
-	 */
-	function splitStr(str) {
-	    return str.trim().split(/\s+/g);
-	}
-
-	/**
-	 * find if a array contains the object using indexOf or a simple polyFill
-	 * @param {Array} src
-	 * @param {String} find
-	 * @param {String} [findByKey]
-	 * @return {Boolean|Number} false when not found, or the index
-	 */
-	function inArray(src, find, findByKey) {
-	    if (src.indexOf && !findByKey) {
-	        return src.indexOf(find);
-	    } else {
-	        var i = 0;
-	        while (i < src.length) {
-	            if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) {
-	                return i;
-	            }
-	            i++;
-	        }
-	        return -1;
-	    }
-	}
-
-	/**
-	 * convert array-like objects to real arrays
-	 * @param {Object} obj
-	 * @returns {Array}
-	 */
-	function toArray(obj) {
-	    return Array.prototype.slice.call(obj, 0);
-	}
-
-	/**
-	 * unique array with objects based on a key (like 'id') or just by the array's value
-	 * @param {Array} src [{id:1},{id:2},{id:1}]
-	 * @param {String} [key]
-	 * @param {Boolean} [sort=False]
-	 * @returns {Array} [{id:1},{id:2}]
-	 */
-	function uniqueArray(src, key, sort) {
-	    var results = [];
-	    var values = [];
-	    var i = 0;
-
-	    while (i < src.length) {
-	        var val = key ? src[i][key] : src[i];
-	        if (inArray(values, val) < 0) {
-	            results.push(src[i]);
-	        }
-	        values[i] = val;
-	        i++;
-	    }
-
-	    if (sort) {
-	        if (!key) {
-	            results = results.sort();
-	        } else {
-	            results = results.sort(function sortUniqueArray(a, b) {
-	                return a[key] > b[key];
-	            });
-	        }
-	    }
-
-	    return results;
-	}
-
-	/**
-	 * get the prefixed property
-	 * @param {Object} obj
-	 * @param {String} property
-	 * @returns {String|Undefined} prefixed
-	 */
-	function prefixed(obj, property) {
-	    var prefix, prop;
-	    var camelProp = property[0].toUpperCase() + property.slice(1);
-
-	    var i = 0;
-	    while (i < VENDOR_PREFIXES.length) {
-	        prefix = VENDOR_PREFIXES[i];
-	        prop = (prefix) ? prefix + camelProp : property;
-
-	        if (prop in obj) {
-	            return prop;
-	        }
-	        i++;
-	    }
-	    return undefined;
-	}
-
-	/**
-	 * get a unique id
-	 * @returns {number} uniqueId
-	 */
-	var _uniqueId = 1;
-	function uniqueId() {
-	    return _uniqueId++;
-	}
-
-	/**
-	 * get the window object of an element
-	 * @param {HTMLElement} element
-	 * @returns {DocumentView|Window}
-	 */
-	function getWindowForElement(element) {
-	    var doc = element.ownerDocument || element;
-	    return (doc.defaultView || doc.parentWindow || window);
-	}
-
-	var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;
-
-	var SUPPORT_TOUCH = ('ontouchstart' in window);
-	var SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined;
-	var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);
-
-	var INPUT_TYPE_TOUCH = 'touch';
-	var INPUT_TYPE_PEN = 'pen';
-	var INPUT_TYPE_MOUSE = 'mouse';
-	var INPUT_TYPE_KINECT = 'kinect';
-
-	var COMPUTE_INTERVAL = 25;
-
-	var INPUT_START = 1;
-	var INPUT_MOVE = 2;
-	var INPUT_END = 4;
-	var INPUT_CANCEL = 8;
-
-	var DIRECTION_NONE = 1;
-	var DIRECTION_LEFT = 2;
-	var DIRECTION_RIGHT = 4;
-	var DIRECTION_UP = 8;
-	var DIRECTION_DOWN = 16;
-
-	var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;
-	var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;
-	var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;
-
-	var PROPS_XY = ['x', 'y'];
-	var PROPS_CLIENT_XY = ['clientX', 'clientY'];
-
-	/**
-	 * create new input type manager
-	 * @param {Manager} manager
-	 * @param {Function} callback
-	 * @returns {Input}
-	 * @constructor
-	 */
-	function Input(manager, callback) {
-	    var self = this;
-	    this.manager = manager;
-	    this.callback = callback;
-	    this.element = manager.element;
-	    this.target = manager.options.inputTarget;
-
-	    // smaller wrapper around the handler, for the scope and the enabled state of the manager,
-	    // so when disabled the input events are completely bypassed.
-	    this.domHandler = function(ev) {
-	        if (boolOrFn(manager.options.enable, [manager])) {
-	            self.handler(ev);
-	        }
-	    };
-
-	    this.init();
-
-	}
-
-	Input.prototype = {
-	    /**
-	     * should handle the inputEvent data and trigger the callback
-	     * @virtual
-	     */
-	    handler: function() { },
-
-	    /**
-	     * bind the events
-	     */
-	    init: function() {
-	        this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);
-	        this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);
-	        this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
-	    },
-
-	    /**
-	     * unbind the events
-	     */
-	    destroy: function() {
-	        this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);
-	        this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);
-	        this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
-	    }
-	};
-
-	/**
-	 * create new input type manager
-	 * called by the Manager constructor
-	 * @param {Hammer} manager
-	 * @returns {Input}
-	 */
-	function createInputInstance(manager) {
-	    var Type;
-	    var inputClass = manager.options.inputClass;
-
-	    if (inputClass) {
-	        Type = inputClass;
-	    } else if (SUPPORT_POINTER_EVENTS) {
-	        Type = PointerEventInput;
-	    } else if (SUPPORT_ONLY_TOUCH) {
-	        Type = TouchInput;
-	    } else if (!SUPPORT_TOUCH) {
-	        Type = MouseInput;
-	    } else {
-	        Type = TouchMouseInput;
-	    }
-	    return new (Type)(manager, inputHandler);
-	}
-
-	/**
-	 * handle input events
-	 * @param {Manager} manager
-	 * @param {String} eventType
-	 * @param {Object} input
-	 */
-	function inputHandler(manager, eventType, input) {
-	    var pointersLen = input.pointers.length;
-	    var changedPointersLen = input.changedPointers.length;
-	    var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0));
-	    var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0));
-
-	    input.isFirst = !!isFirst;
-	    input.isFinal = !!isFinal;
-
-	    if (isFirst) {
-	        manager.session = {};
-	    }
-
-	    // source event is the normalized value of the domEvents
-	    // like 'touchstart, mouseup, pointerdown'
-	    input.eventType = eventType;
-
-	    // compute scale, rotation etc
-	    computeInputData(manager, input);
-
-	    // emit secret event
-	    manager.emit('hammer.input', input);
-
-	    manager.recognize(input);
-	    manager.session.prevInput = input;
-	}
-
-	/**
-	 * extend the data with some usable properties like scale, rotate, velocity etc
-	 * @param {Object} manager
-	 * @param {Object} input
-	 */
-	function computeInputData(manager, input) {
-	    var session = manager.session;
-	    var pointers = input.pointers;
-	    var pointersLength = pointers.length;
-
-	    // store the first input to calculate the distance and direction
-	    if (!session.firstInput) {
-	        session.firstInput = simpleCloneInputData(input);
-	    }
-
-	    // to compute scale and rotation we need to store the multiple touches
-	    if (pointersLength > 1 && !session.firstMultiple) {
-	        session.firstMultiple = simpleCloneInputData(input);
-	    } else if (pointersLength === 1) {
-	        session.firstMultiple = false;
-	    }
-
-	    var firstInput = session.firstInput;
-	    var firstMultiple = session.firstMultiple;
-	    var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;
-
-	    var center = input.center = getCenter(pointers);
-	    input.timeStamp = now();
-	    input.deltaTime = input.timeStamp - firstInput.timeStamp;
-
-	    input.angle = getAngle(offsetCenter, center);
-	    input.distance = getDistance(offsetCenter, center);
-
-	    computeDeltaXY(session, input);
-	    input.offsetDirection = getDirection(input.deltaX, input.deltaY);
-
-	    var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);
-	    input.overallVelocityX = overallVelocity.x;
-	    input.overallVelocityY = overallVelocity.y;
-	    input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y;
-
-	    input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;
-	    input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;
-
-	    input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length >
-	        session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers);
-
-	    computeIntervalInputData(session, input);
-
-	    // find the correct target
-	    var target = manager.element;
-	    if (hasParent(input.srcEvent.target, target)) {
-	        target = input.srcEvent.target;
-	    }
-	    input.target = target;
-	}
-
-	function computeDeltaXY(session, input) {
-	    var center = input.center;
-	    var offset = session.offsetDelta || {};
-	    var prevDelta = session.prevDelta || {};
-	    var prevInput = session.prevInput || {};
-
-	    if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {
-	        prevDelta = session.prevDelta = {
-	            x: prevInput.deltaX || 0,
-	            y: prevInput.deltaY || 0
-	        };
-
-	        offset = session.offsetDelta = {
-	            x: center.x,
-	            y: center.y
-	        };
-	    }
-
-	    input.deltaX = prevDelta.x + (center.x - offset.x);
-	    input.deltaY = prevDelta.y + (center.y - offset.y);
-	}
-
-	/**
-	 * velocity is calculated every x ms
-	 * @param {Object} session
-	 * @param {Object} input
-	 */
-	function computeIntervalInputData(session, input) {
-	    var last = session.lastInterval || input,
-	        deltaTime = input.timeStamp - last.timeStamp,
-	        velocity, velocityX, velocityY, direction;
-
-	    if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {
-	        var deltaX = input.deltaX - last.deltaX;
-	        var deltaY = input.deltaY - last.deltaY;
-
-	        var v = getVelocity(deltaTime, deltaX, deltaY);
-	        velocityX = v.x;
-	        velocityY = v.y;
-	        velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y;
-	        direction = getDirection(deltaX, deltaY);
-
-	        session.lastInterval = input;
-	    } else {
-	        // use latest velocity info if it doesn't overtake a minimum period
-	        velocity = last.velocity;
-	        velocityX = last.velocityX;
-	        velocityY = last.velocityY;
-	        direction = last.direction;
-	    }
-
-	    input.velocity = velocity;
-	    input.velocityX = velocityX;
-	    input.velocityY = velocityY;
-	    input.direction = direction;
-	}
-
-	/**
-	 * create a simple clone from the input used for storage of firstInput and firstMultiple
-	 * @param {Object} input
-	 * @returns {Object} clonedInputData
-	 */
-	function simpleCloneInputData(input) {
-	    // make a simple copy of the pointers because we will get a reference if we don't
-	    // we only need clientXY for the calculations
-	    var pointers = [];
-	    var i = 0;
-	    while (i < input.pointers.length) {
-	        pointers[i] = {
-	            clientX: round(input.pointers[i].clientX),
-	            clientY: round(input.pointers[i].clientY)
-	        };
-	        i++;
-	    }
-
-	    return {
-	        timeStamp: now(),
-	        pointers: pointers,
-	        center: getCenter(pointers),
-	        deltaX: input.deltaX,
-	        deltaY: input.deltaY
-	    };
-	}
-
-	/**
-	 * get the center of all the pointers
-	 * @param {Array} pointers
-	 * @return {Object} center contains `x` and `y` properties
-	 */
-	function getCenter(pointers) {
-	    var pointersLength = pointers.length;
-
-	    // no need to loop when only one touch
-	    if (pointersLength === 1) {
-	        return {
-	            x: round(pointers[0].clientX),
-	            y: round(pointers[0].clientY)
-	        };
-	    }
-
-	    var x = 0, y = 0, i = 0;
-	    while (i < pointersLength) {
-	        x += pointers[i].clientX;
-	        y += pointers[i].clientY;
-	        i++;
-	    }
-
-	    return {
-	        x: round(x / pointersLength),
-	        y: round(y / pointersLength)
-	    };
-	}
-
-	/**
-	 * calculate the velocity between two points. unit is in px per ms.
-	 * @param {Number} deltaTime
-	 * @param {Number} x
-	 * @param {Number} y
-	 * @return {Object} velocity `x` and `y`
-	 */
-	function getVelocity(deltaTime, x, y) {
-	    return {
-	        x: x / deltaTime || 0,
-	        y: y / deltaTime || 0
-	    };
-	}
-
-	/**
-	 * get the direction between two points
-	 * @param {Number} x
-	 * @param {Number} y
-	 * @return {Number} direction
-	 */
-	function getDirection(x, y) {
-	    if (x === y) {
-	        return DIRECTION_NONE;
-	    }
-
-	    if (abs(x) >= abs(y)) {
-	        return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
-	    }
-	    return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
-	}
-
-	/**
-	 * calculate the absolute distance between two points
-	 * @param {Object} p1 {x, y}
-	 * @param {Object} p2 {x, y}
-	 * @param {Array} [props] containing x and y keys
-	 * @return {Number} distance
-	 */
-	function getDistance(p1, p2, props) {
-	    if (!props) {
-	        props = PROPS_XY;
-	    }
-	    var x = p2[props[0]] - p1[props[0]],
-	        y = p2[props[1]] - p1[props[1]];
-
-	    return Math.sqrt((x * x) + (y * y));
-	}
-
-	/**
-	 * calculate the angle between two coordinates
-	 * @param {Object} p1
-	 * @param {Object} p2
-	 * @param {Array} [props] containing x and y keys
-	 * @return {Number} angle
-	 */
-	function getAngle(p1, p2, props) {
-	    if (!props) {
-	        props = PROPS_XY;
-	    }
-	    var x = p2[props[0]] - p1[props[0]],
-	        y = p2[props[1]] - p1[props[1]];
-	    return Math.atan2(y, x) * 180 / Math.PI;
-	}
-
-	/**
-	 * calculate the rotation degrees between two pointersets
-	 * @param {Array} start array of pointers
-	 * @param {Array} end array of pointers
-	 * @return {Number} rotation
-	 */
-	function getRotation(start, end) {
-	    return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);
-	}
-
-	/**
-	 * calculate the scale factor between two pointersets
-	 * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
-	 * @param {Array} start array of pointers
-	 * @param {Array} end array of pointers
-	 * @return {Number} scale
-	 */
-	function getScale(start, end) {
-	    return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);
-	}
-
-	var MOUSE_INPUT_MAP = {
-	    mousedown: INPUT_START,
-	    mousemove: INPUT_MOVE,
-	    mouseup: INPUT_END
-	};
-
-	var MOUSE_ELEMENT_EVENTS = 'mousedown';
-	var MOUSE_WINDOW_EVENTS = 'mousemove mouseup';
-
-	/**
-	 * Mouse events input
-	 * @constructor
-	 * @extends Input
-	 */
-	function MouseInput() {
-	    this.evEl = MOUSE_ELEMENT_EVENTS;
-	    this.evWin = MOUSE_WINDOW_EVENTS;
-
-	    this.pressed = false; // mousedown state
-
-	    Input.apply(this, arguments);
-	}
-
-	inherit(MouseInput, Input, {
-	    /**
-	     * handle mouse events
-	     * @param {Object} ev
-	     */
-	    handler: function MEhandler(ev) {
-	        var eventType = MOUSE_INPUT_MAP[ev.type];
-
-	        // on start we want to have the left mouse button down
-	        if (eventType & INPUT_START && ev.button === 0) {
-	            this.pressed = true;
-	        }
-
-	        if (eventType & INPUT_MOVE && ev.which !== 1) {
-	            eventType = INPUT_END;
-	        }
-
-	        // mouse must be down
-	        if (!this.pressed) {
-	            return;
-	        }
-
-	        if (eventType & INPUT_END) {
-	            this.pressed = false;
-	        }
-
-	        this.callback(this.manager, eventType, {
-	            pointers: [ev],
-	            changedPointers: [ev],
-	            pointerType: INPUT_TYPE_MOUSE,
-	            srcEvent: ev
-	        });
-	    }
-	});
-
-	var POINTER_INPUT_MAP = {
-	    pointerdown: INPUT_START,
-	    pointermove: INPUT_MOVE,
-	    pointerup: INPUT_END,
-	    pointercancel: INPUT_CANCEL,
-	    pointerout: INPUT_CANCEL
-	};
-
-	// in IE10 the pointer types is defined as an enum
-	var IE10_POINTER_TYPE_ENUM = {
-	    2: INPUT_TYPE_TOUCH,
-	    3: INPUT_TYPE_PEN,
-	    4: INPUT_TYPE_MOUSE,
-	    5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816
-	};
-
-	var POINTER_ELEMENT_EVENTS = 'pointerdown';
-	var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';
-
-	// IE10 has prefixed support, and case-sensitive
-	if (window.MSPointerEvent && !window.PointerEvent) {
-	    POINTER_ELEMENT_EVENTS = 'MSPointerDown';
-	    POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';
-	}
-
-	/**
-	 * Pointer events input
-	 * @constructor
-	 * @extends Input
-	 */
-	function PointerEventInput() {
-	    this.evEl = POINTER_ELEMENT_EVENTS;
-	    this.evWin = POINTER_WINDOW_EVENTS;
-
-	    Input.apply(this, arguments);
-
-	    this.store = (this.manager.session.pointerEvents = []);
-	}
-
-	inherit(PointerEventInput, Input, {
-	    /**
-	     * handle mouse events
-	     * @param {Object} ev
-	     */
-	    handler: function PEhandler(ev) {
-	        var store = this.store;
-	        var removePointer = false;
-
-	        var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');
-	        var eventType = POINTER_INPUT_MAP[eventTypeNormalized];
-	        var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;
-
-	        var isTouch = (pointerType == INPUT_TYPE_TOUCH);
-
-	        // get index of the event in the store
-	        var storeIndex = inArray(store, ev.pointerId, 'pointerId');
-
-	        // start and mouse must be down
-	        if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {
-	            if (storeIndex < 0) {
-	                store.push(ev);
-	                storeIndex = store.length - 1;
-	            }
-	        } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
-	            removePointer = true;
-	        }
-
-	        // it not found, so the pointer hasn't been down (so it's probably a hover)
-	        if (storeIndex < 0) {
-	            return;
-	        }
-
-	        // update the event in the store
-	        store[storeIndex] = ev;
-
-	        this.callback(this.manager, eventType, {
-	            pointers: store,
-	            changedPointers: [ev],
-	            pointerType: pointerType,
-	            srcEvent: ev
-	        });
-
-	        if (removePointer) {
-	            // remove from the store
-	            store.splice(storeIndex, 1);
-	        }
-	    }
-	});
-
-	var SINGLE_TOUCH_INPUT_MAP = {
-	    touchstart: INPUT_START,
-	    touchmove: INPUT_MOVE,
-	    touchend: INPUT_END,
-	    touchcancel: INPUT_CANCEL
-	};
-
-	var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';
-	var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';
-
-	/**
-	 * Touch events input
-	 * @constructor
-	 * @extends Input
-	 */
-	function SingleTouchInput() {
-	    this.evTarget = SINGLE_TOUCH_TARGET_EVENTS;
-	    this.evWin = SINGLE_TOUCH_WINDOW_EVENTS;
-	    this.started = false;
-
-	    Input.apply(this, arguments);
-	}
-
-	inherit(SingleTouchInput, Input, {
-	    handler: function TEhandler(ev) {
-	        var type = SINGLE_TOUCH_INPUT_MAP[ev.type];
-
-	        // should we handle the touch events?
-	        if (type === INPUT_START) {
-	            this.started = true;
-	        }
-
-	        if (!this.started) {
-	            return;
-	        }
-
-	        var touches = normalizeSingleTouches.call(this, ev, type);
-
-	        // when done, reset the started state
-	        if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {
-	            this.started = false;
-	        }
-
-	        this.callback(this.manager, type, {
-	            pointers: touches[0],
-	            changedPointers: touches[1],
-	            pointerType: INPUT_TYPE_TOUCH,
-	            srcEvent: ev
-	        });
-	    }
-	});
-
-	/**
-	 * @this {TouchInput}
-	 * @param {Object} ev
-	 * @param {Number} type flag
-	 * @returns {undefined|Array} [all, changed]
-	 */
-	function normalizeSingleTouches(ev, type) {
-	    var all = toArray(ev.touches);
-	    var changed = toArray(ev.changedTouches);
-
-	    if (type & (INPUT_END | INPUT_CANCEL)) {
-	        all = uniqueArray(all.concat(changed), 'identifier', true);
-	    }
-
-	    return [all, changed];
-	}
-
-	var TOUCH_INPUT_MAP = {
-	    touchstart: INPUT_START,
-	    touchmove: INPUT_MOVE,
-	    touchend: INPUT_END,
-	    touchcancel: INPUT_CANCEL
-	};
-
-	var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';
-
-	/**
-	 * Multi-user touch events input
-	 * @constructor
-	 * @extends Input
-	 */
-	function TouchInput() {
-	    this.evTarget = TOUCH_TARGET_EVENTS;
-	    this.targetIds = {};
-
-	    Input.apply(this, arguments);
-	}
-
-	inherit(TouchInput, Input, {
-	    handler: function MTEhandler(ev) {
-	        var type = TOUCH_INPUT_MAP[ev.type];
-	        var touches = getTouches.call(this, ev, type);
-	        if (!touches) {
-	            return;
-	        }
-
-	        this.callback(this.manager, type, {
-	            pointers: touches[0],
-	            changedPointers: touches[1],
-	            pointerType: INPUT_TYPE_TOUCH,
-	            srcEvent: ev
-	        });
-	    }
-	});
-
-	/**
-	 * @this {TouchInput}
-	 * @param {Object} ev
-	 * @param {Number} type flag
-	 * @returns {undefined|Array} [all, changed]
-	 */
-	function getTouches(ev, type) {
-	    var allTouches = toArray(ev.touches);
-	    var targetIds = this.targetIds;
-
-	    // when there is only one touch, the process can be simplified
-	    if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {
-	        targetIds[allTouches[0].identifier] = true;
-	        return [allTouches, allTouches];
-	    }
-
-	    var i,
-	        targetTouches,
-	        changedTouches = toArray(ev.changedTouches),
-	        changedTargetTouches = [],
-	        target = this.target;
-
-	    // get target touches from touches
-	    targetTouches = allTouches.filter(function(touch) {
-	        return hasParent(touch.target, target);
-	    });
-
-	    // collect touches
-	    if (type === INPUT_START) {
-	        i = 0;
-	        while (i < targetTouches.length) {
-	            targetIds[targetTouches[i].identifier] = true;
-	            i++;
-	        }
-	    }
-
-	    // filter changed touches to only contain touches that exist in the collected target ids
-	    i = 0;
-	    while (i < changedTouches.length) {
-	        if (targetIds[changedTouches[i].identifier]) {
-	            changedTargetTouches.push(changedTouches[i]);
-	        }
-
-	        // cleanup removed touches
-	        if (type & (INPUT_END | INPUT_CANCEL)) {
-	            delete targetIds[changedTouches[i].identifier];
-	        }
-	        i++;
-	    }
-
-	    if (!changedTargetTouches.length) {
-	        return;
-	    }
-
-	    return [
-	        // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'
-	        uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true),
-	        changedTargetTouches
-	    ];
-	}
-
-	/**
-	 * Combined touch and mouse input
-	 *
-	 * Touch has a higher priority then mouse, and while touching no mouse events are allowed.
-	 * This because touch devices also emit mouse events while doing a touch.
-	 *
-	 * @constructor
-	 * @extends Input
-	 */
-
-	var DEDUP_TIMEOUT = 2500;
-	var DEDUP_DISTANCE = 25;
-
-	function TouchMouseInput() {
-	    Input.apply(this, arguments);
-
-	    var handler = bindFn(this.handler, this);
-	    this.touch = new TouchInput(this.manager, handler);
-	    this.mouse = new MouseInput(this.manager, handler);
-
-	    this.primaryTouch = null;
-	    this.lastTouches = [];
-	}
-
-	inherit(TouchMouseInput, Input, {
-	    /**
-	     * handle mouse and touch events
-	     * @param {Hammer} manager
-	     * @param {String} inputEvent
-	     * @param {Object} inputData
-	     */
-	    handler: function TMEhandler(manager, inputEvent, inputData) {
-	        var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH),
-	            isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE);
-
-	        if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {
-	            return;
-	        }
-
-	        // when we're in a touch event, record touches to  de-dupe synthetic mouse event
-	        if (isTouch) {
-	            recordTouches.call(this, inputEvent, inputData);
-	        } else if (isMouse && isSyntheticEvent.call(this, inputData)) {
-	            return;
-	        }
-
-	        this.callback(manager, inputEvent, inputData);
-	    },
-
-	    /**
-	     * remove the event listeners
-	     */
-	    destroy: function destroy() {
-	        this.touch.destroy();
-	        this.mouse.destroy();
-	    }
-	});
-
-	function recordTouches(eventType, eventData) {
-	    if (eventType & INPUT_START) {
-	        this.primaryTouch = eventData.changedPointers[0].identifier;
-	        setLastTouch.call(this, eventData);
-	    } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
-	        setLastTouch.call(this, eventData);
-	    }
-	}
-
-	function setLastTouch(eventData) {
-	    var touch = eventData.changedPointers[0];
-
-	    if (touch.identifier === this.primaryTouch) {
-	        var lastTouch = {x: touch.clientX, y: touch.clientY};
-	        this.lastTouches.push(lastTouch);
-	        var lts = this.lastTouches;
-	        var removeLastTouch = function() {
-	            var i = lts.indexOf(lastTouch);
-	            if (i > -1) {
-	                lts.splice(i, 1);
-	            }
-	        };
-	        setTimeout(removeLastTouch, DEDUP_TIMEOUT);
-	    }
-	}
-
-	function isSyntheticEvent(eventData) {
-	    var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY;
-	    for (var i = 0; i < this.lastTouches.length; i++) {
-	        var t = this.lastTouches[i];
-	        var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);
-	        if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {
-	            return true;
-	        }
-	    }
-	    return false;
-	}
-
-	var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');
-	var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;
-
-	// magical touchAction value
-	var TOUCH_ACTION_COMPUTE = 'compute';
-	var TOUCH_ACTION_AUTO = 'auto';
-	var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented
-	var TOUCH_ACTION_NONE = 'none';
-	var TOUCH_ACTION_PAN_X = 'pan-x';
-	var TOUCH_ACTION_PAN_Y = 'pan-y';
-	var TOUCH_ACTION_MAP = getTouchActionProps();
-
-	/**
-	 * Touch Action
-	 * sets the touchAction property or uses the js alternative
-	 * @param {Manager} manager
-	 * @param {String} value
-	 * @constructor
-	 */
-	function TouchAction(manager, value) {
-	    this.manager = manager;
-	    this.set(value);
-	}
-
-	TouchAction.prototype = {
-	    /**
-	     * set the touchAction value on the element or enable the polyfill
-	     * @param {String} value
-	     */
-	    set: function(value) {
-	        // find out the touch-action by the event handlers
-	        if (value == TOUCH_ACTION_COMPUTE) {
-	            value = this.compute();
-	        }
-
-	        if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {
-	            this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;
-	        }
-	        this.actions = value.toLowerCase().trim();
-	    },
-
-	    /**
-	     * just re-set the touchAction value
-	     */
-	    update: function() {
-	        this.set(this.manager.options.touchAction);
-	    },
-
-	    /**
-	     * compute the value for the touchAction property based on the recognizer's settings
-	     * @returns {String} value
-	     */
-	    compute: function() {
-	        var actions = [];
-	        each(this.manager.recognizers, function(recognizer) {
-	            if (boolOrFn(recognizer.options.enable, [recognizer])) {
-	                actions = actions.concat(recognizer.getTouchAction());
-	            }
-	        });
-	        return cleanTouchActions(actions.join(' '));
-	    },
-
-	    /**
-	     * this method is called on each input cycle and provides the preventing of the browser behavior
-	     * @param {Object} input
-	     */
-	    preventDefaults: function(input) {
-	        var srcEvent = input.srcEvent;
-	        var direction = input.offsetDirection;
-
-	        // if the touch action did prevented once this session
-	        if (this.manager.session.prevented) {
-	            srcEvent.preventDefault();
-	            return;
-	        }
-
-	        var actions = this.actions;
-	        var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];
-	        var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];
-	        var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];
-
-	        if (hasNone) {
-	            //do not prevent defaults if this is a tap gesture
-
-	            var isTapPointer = input.pointers.length === 1;
-	            var isTapMovement = input.distance < 2;
-	            var isTapTouchTime = input.deltaTime < 250;
-
-	            if (isTapPointer && isTapMovement && isTapTouchTime) {
-	                return;
-	            }
-	        }
-
-	        if (hasPanX && hasPanY) {
-	            // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent
-	            return;
-	        }
-
-	        if (hasNone ||
-	            (hasPanY && direction & DIRECTION_HORIZONTAL) ||
-	            (hasPanX && direction & DIRECTION_VERTICAL)) {
-	            return this.preventSrc(srcEvent);
-	        }
-	    },
-
-	    /**
-	     * call preventDefault to prevent the browser's default behavior (scrolling in most cases)
-	     * @param {Object} srcEvent
-	     */
-	    preventSrc: function(srcEvent) {
-	        this.manager.session.prevented = true;
-	        srcEvent.preventDefault();
-	    }
-	};
-
-	/**
-	 * when the touchActions are collected they are not a valid value, so we need to clean things up. *
-	 * @param {String} actions
-	 * @returns {*}
-	 */
-	function cleanTouchActions(actions) {
-	    // none
-	    if (inStr(actions, TOUCH_ACTION_NONE)) {
-	        return TOUCH_ACTION_NONE;
-	    }
-
-	    var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);
-	    var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y);
-
-	    // if both pan-x and pan-y are set (different recognizers
-	    // for different directions, e.g. horizontal pan but vertical swipe?)
-	    // we need none (as otherwise with pan-x pan-y combined none of these
-	    // recognizers will work, since the browser would handle all panning
-	    if (hasPanX && hasPanY) {
-	        return TOUCH_ACTION_NONE;
-	    }
-
-	    // pan-x OR pan-y
-	    if (hasPanX || hasPanY) {
-	        return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;
-	    }
-
-	    // manipulation
-	    if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {
-	        return TOUCH_ACTION_MANIPULATION;
-	    }
-
-	    return TOUCH_ACTION_AUTO;
-	}
-
-	function getTouchActionProps() {
-	    if (!NATIVE_TOUCH_ACTION) {
-	        return false;
-	    }
-	    var touchMap = {};
-	    var cssSupports = window.CSS && window.CSS.supports;
-	    ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) {
-
-	        // If css.supports is not supported but there is native touch-action assume it supports
-	        // all values. This is the case for IE 10 and 11.
-	        touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true;
-	    });
-	    return touchMap;
-	}
-
-	/**
-	 * Recognizer flow explained; *
-	 * All recognizers have the initial state of POSSIBLE when a input session starts.
-	 * The definition of a input session is from the first input until the last input, with all it's movement in it. *
-	 * Example session for mouse-input: mousedown -> mousemove -> mouseup
-	 *
-	 * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed
-	 * which determines with state it should be.
-	 *
-	 * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to
-	 * POSSIBLE to give it another change on the next cycle.
-	 *
-	 *               Possible
-	 *                  |
-	 *            +-----+---------------+
-	 *            |                     |
-	 *      +-----+-----+               |
-	 *      |           |               |
-	 *   Failed      Cancelled          |
-	 *                          +-------+------+
-	 *                          |              |
-	 *                      Recognized       Began
-	 *                                         |
-	 *                                      Changed
-	 *                                         |
-	 *                                  Ended/Recognized
-	 */
-	var STATE_POSSIBLE = 1;
-	var STATE_BEGAN = 2;
-	var STATE_CHANGED = 4;
-	var STATE_ENDED = 8;
-	var STATE_RECOGNIZED = STATE_ENDED;
-	var STATE_CANCELLED = 16;
-	var STATE_FAILED = 32;
-
-	/**
-	 * Recognizer
-	 * Every recognizer needs to extend from this class.
-	 * @constructor
-	 * @param {Object} options
-	 */
-	function Recognizer(options) {
-	    this.options = assign({}, this.defaults, options || {});
-
-	    this.id = uniqueId();
-
-	    this.manager = null;
-
-	    // default is enable true
-	    this.options.enable = ifUndefined(this.options.enable, true);
-
-	    this.state = STATE_POSSIBLE;
-
-	    this.simultaneous = {};
-	    this.requireFail = [];
-	}
-
-	Recognizer.prototype = {
-	    /**
-	     * @virtual
-	     * @type {Object}
-	     */
-	    defaults: {},
-
-	    /**
-	     * set options
-	     * @param {Object} options
-	     * @return {Recognizer}
-	     */
-	    set: function(options) {
-	        assign(this.options, options);
-
-	        // also update the touchAction, in case something changed about the directions/enabled state
-	        this.manager && this.manager.touchAction.update();
-	        return this;
-	    },
-
-	    /**
-	     * recognize simultaneous with an other recognizer.
-	     * @param {Recognizer} otherRecognizer
-	     * @returns {Recognizer} this
-	     */
-	    recognizeWith: function(otherRecognizer) {
-	        if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {
-	            return this;
-	        }
-
-	        var simultaneous = this.simultaneous;
-	        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
-	        if (!simultaneous[otherRecognizer.id]) {
-	            simultaneous[otherRecognizer.id] = otherRecognizer;
-	            otherRecognizer.recognizeWith(this);
-	        }
-	        return this;
-	    },
-
-	    /**
-	     * drop the simultaneous link. it doesnt remove the link on the other recognizer.
-	     * @param {Recognizer} otherRecognizer
-	     * @returns {Recognizer} this
-	     */
-	    dropRecognizeWith: function(otherRecognizer) {
-	        if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {
-	            return this;
-	        }
-
-	        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
-	        delete this.simultaneous[otherRecognizer.id];
-	        return this;
-	    },
-
-	    /**
-	     * recognizer can only run when an other is failing
-	     * @param {Recognizer} otherRecognizer
-	     * @returns {Recognizer} this
-	     */
-	    requireFailure: function(otherRecognizer) {
-	        if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {
-	            return this;
-	        }
-
-	        var requireFail = this.requireFail;
-	        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
-	        if (inArray(requireFail, otherRecognizer) === -1) {
-	            requireFail.push(otherRecognizer);
-	            otherRecognizer.requireFailure(this);
-	        }
-	        return this;
-	    },
-
-	    /**
-	     * drop the requireFailure link. it does not remove the link on the other recognizer.
-	     * @param {Recognizer} otherRecognizer
-	     * @returns {Recognizer} this
-	     */
-	    dropRequireFailure: function(otherRecognizer) {
-	        if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {
-	            return this;
-	        }
-
-	        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
-	        var index = inArray(this.requireFail, otherRecognizer);
-	        if (index > -1) {
-	            this.requireFail.splice(index, 1);
-	        }
-	        return this;
-	    },
-
-	    /**
-	     * has require failures boolean
-	     * @returns {boolean}
-	     */
-	    hasRequireFailures: function() {
-	        return this.requireFail.length > 0;
-	    },
-
-	    /**
-	     * if the recognizer can recognize simultaneous with an other recognizer
-	     * @param {Recognizer} otherRecognizer
-	     * @returns {Boolean}
-	     */
-	    canRecognizeWith: function(otherRecognizer) {
-	        return !!this.simultaneous[otherRecognizer.id];
-	    },
-
-	    /**
-	     * You should use `tryEmit` instead of `emit` directly to check
-	     * that all the needed recognizers has failed before emitting.
-	     * @param {Object} input
-	     */
-	    emit: function(input) {
-	        var self = this;
-	        var state = this.state;
-
-	        function emit(event) {
-	            self.manager.emit(event, input);
-	        }
-
-	        // 'panstart' and 'panmove'
-	        if (state < STATE_ENDED) {
-	            emit(self.options.event + stateStr(state));
-	        }
-
-	        emit(self.options.event); // simple 'eventName' events
-
-	        if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...)
-	            emit(input.additionalEvent);
-	        }
-
-	        // panend and pancancel
-	        if (state >= STATE_ENDED) {
-	            emit(self.options.event + stateStr(state));
-	        }
-	    },
-
-	    /**
-	     * Check that all the require failure recognizers has failed,
-	     * if true, it emits a gesture event,
-	     * otherwise, setup the state to FAILED.
-	     * @param {Object} input
-	     */
-	    tryEmit: function(input) {
-	        if (this.canEmit()) {
-	            return this.emit(input);
-	        }
-	        // it's failing anyway
-	        this.state = STATE_FAILED;
-	    },
-
-	    /**
-	     * can we emit?
-	     * @returns {boolean}
-	     */
-	    canEmit: function() {
-	        var i = 0;
-	        while (i < this.requireFail.length) {
-	            if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {
-	                return false;
-	            }
-	            i++;
-	        }
-	        return true;
-	    },
-
-	    /**
-	     * update the recognizer
-	     * @param {Object} inputData
-	     */
-	    recognize: function(inputData) {
-	        // make a new copy of the inputData
-	        // so we can change the inputData without messing up the other recognizers
-	        var inputDataClone = assign({}, inputData);
-
-	        // is is enabled and allow recognizing?
-	        if (!boolOrFn(this.options.enable, [this, inputDataClone])) {
-	            this.reset();
-	            this.state = STATE_FAILED;
-	            return;
-	        }
-
-	        // reset when we've reached the end
-	        if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {
-	            this.state = STATE_POSSIBLE;
-	        }
-
-	        this.state = this.process(inputDataClone);
-
-	        // the recognizer has recognized a gesture
-	        // so trigger an event
-	        if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {
-	            this.tryEmit(inputDataClone);
-	        }
-	    },
-
-	    /**
-	     * return the state of the recognizer
-	     * the actual recognizing happens in this method
-	     * @virtual
-	     * @param {Object} inputData
-	     * @returns {Const} STATE
-	     */
-	    process: function(inputData) { }, // jshint ignore:line
-
-	    /**
-	     * return the preferred touch-action
-	     * @virtual
-	     * @returns {Array}
-	     */
-	    getTouchAction: function() { },
-
-	    /**
-	     * called when the gesture isn't allowed to recognize
-	     * like when another is being recognized or it is disabled
-	     * @virtual
-	     */
-	    reset: function() { }
-	};
-
-	/**
-	 * get a usable string, used as event postfix
-	 * @param {Const} state
-	 * @returns {String} state
-	 */
-	function stateStr(state) {
-	    if (state & STATE_CANCELLED) {
-	        return 'cancel';
-	    } else if (state & STATE_ENDED) {
-	        return 'end';
-	    } else if (state & STATE_CHANGED) {
-	        return 'move';
-	    } else if (state & STATE_BEGAN) {
-	        return 'start';
-	    }
-	    return '';
-	}
-
-	/**
-	 * direction cons to string
-	 * @param {Const} direction
-	 * @returns {String}
-	 */
-	function directionStr(direction) {
-	    if (direction == DIRECTION_DOWN) {
-	        return 'down';
-	    } else if (direction == DIRECTION_UP) {
-	        return 'up';
-	    } else if (direction == DIRECTION_LEFT) {
-	        return 'left';
-	    } else if (direction == DIRECTION_RIGHT) {
-	        return 'right';
-	    }
-	    return '';
-	}
-
-	/**
-	 * get a recognizer by name if it is bound to a manager
-	 * @param {Recognizer|String} otherRecognizer
-	 * @param {Recognizer} recognizer
-	 * @returns {Recognizer}
-	 */
-	function getRecognizerByNameIfManager(otherRecognizer, recognizer) {
-	    var manager = recognizer.manager;
-	    if (manager) {
-	        return manager.get(otherRecognizer);
-	    }
-	    return otherRecognizer;
-	}
-
-	/**
-	 * This recognizer is just used as a base for the simple attribute recognizers.
-	 * @constructor
-	 * @extends Recognizer
-	 */
-	function AttrRecognizer() {
-	    Recognizer.apply(this, arguments);
-	}
-
-	inherit(AttrRecognizer, Recognizer, {
-	    /**
-	     * @namespace
-	     * @memberof AttrRecognizer
-	     */
-	    defaults: {
-	        /**
-	         * @type {Number}
-	         * @default 1
-	         */
-	        pointers: 1
-	    },
-
-	    /**
-	     * Used to check if it the recognizer receives valid input, like input.distance > 10.
-	     * @memberof AttrRecognizer
-	     * @param {Object} input
-	     * @returns {Boolean} recognized
-	     */
-	    attrTest: function(input) {
-	        var optionPointers = this.options.pointers;
-	        return optionPointers === 0 || input.pointers.length === optionPointers;
-	    },
-
-	    /**
-	     * Process the input and return the state for the recognizer
-	     * @memberof AttrRecognizer
-	     * @param {Object} input
-	     * @returns {*} State
-	     */
-	    process: function(input) {
-	        var state = this.state;
-	        var eventType = input.eventType;
-
-	        var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);
-	        var isValid = this.attrTest(input);
-
-	        // on cancel input and we've recognized before, return STATE_CANCELLED
-	        if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {
-	            return state | STATE_CANCELLED;
-	        } else if (isRecognized || isValid) {
-	            if (eventType & INPUT_END) {
-	                return state | STATE_ENDED;
-	            } else if (!(state & STATE_BEGAN)) {
-	                return STATE_BEGAN;
-	            }
-	            return state | STATE_CHANGED;
-	        }
-	        return STATE_FAILED;
-	    }
-	});
-
-	/**
-	 * Pan
-	 * Recognized when the pointer is down and moved in the allowed direction.
-	 * @constructor
-	 * @extends AttrRecognizer
-	 */
-	function PanRecognizer() {
-	    AttrRecognizer.apply(this, arguments);
-
-	    this.pX = null;
-	    this.pY = null;
-	}
-
-	inherit(PanRecognizer, AttrRecognizer, {
-	    /**
-	     * @namespace
-	     * @memberof PanRecognizer
-	     */
-	    defaults: {
-	        event: 'pan',
-	        threshold: 10,
-	        pointers: 1,
-	        direction: DIRECTION_ALL
-	    },
-
-	    getTouchAction: function() {
-	        var direction = this.options.direction;
-	        var actions = [];
-	        if (direction & DIRECTION_HORIZONTAL) {
-	            actions.push(TOUCH_ACTION_PAN_Y);
-	        }
-	        if (direction & DIRECTION_VERTICAL) {
-	            actions.push(TOUCH_ACTION_PAN_X);
-	        }
-	        return actions;
-	    },
-
-	    directionTest: function(input) {
-	        var options = this.options;
-	        var hasMoved = true;
-	        var distance = input.distance;
-	        var direction = input.direction;
-	        var x = input.deltaX;
-	        var y = input.deltaY;
-
-	        // lock to axis?
-	        if (!(direction & options.direction)) {
-	            if (options.direction & DIRECTION_HORIZONTAL) {
-	                direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;
-	                hasMoved = x != this.pX;
-	                distance = Math.abs(input.deltaX);
-	            } else {
-	                direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN;
-	                hasMoved = y != this.pY;
-	                distance = Math.abs(input.deltaY);
-	            }
-	        }
-	        input.direction = direction;
-	        return hasMoved && distance > options.threshold && direction & options.direction;
-	    },
-
-	    attrTest: function(input) {
-	        return AttrRecognizer.prototype.attrTest.call(this, input) &&
-	            (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input)));
-	    },
-
-	    emit: function(input) {
-
-	        this.pX = input.deltaX;
-	        this.pY = input.deltaY;
-
-	        var direction = directionStr(input.direction);
-
-	        if (direction) {
-	            input.additionalEvent = this.options.event + direction;
-	        }
-	        this._super.emit.call(this, input);
-	    }
-	});
-
-	/**
-	 * Pinch
-	 * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).
-	 * @constructor
-	 * @extends AttrRecognizer
-	 */
-	function PinchRecognizer() {
-	    AttrRecognizer.apply(this, arguments);
-	}
-
-	inherit(PinchRecognizer, AttrRecognizer, {
-	    /**
-	     * @namespace
-	     * @memberof PinchRecognizer
-	     */
-	    defaults: {
-	        event: 'pinch',
-	        threshold: 0,
-	        pointers: 2
-	    },
-
-	    getTouchAction: function() {
-	        return [TOUCH_ACTION_NONE];
-	    },
-
-	    attrTest: function(input) {
-	        return this._super.attrTest.call(this, input) &&
-	            (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);
-	    },
-
-	    emit: function(input) {
-	        if (input.scale !== 1) {
-	            var inOut = input.scale < 1 ? 'in' : 'out';
-	            input.additionalEvent = this.options.event + inOut;
-	        }
-	        this._super.emit.call(this, input);
-	    }
-	});
-
-	/**
-	 * Press
-	 * Recognized when the pointer is down for x ms without any movement.
-	 * @constructor
-	 * @extends Recognizer
-	 */
-	function PressRecognizer() {
-	    Recognizer.apply(this, arguments);
-
-	    this._timer = null;
-	    this._input = null;
-	}
-
-	inherit(PressRecognizer, Recognizer, {
-	    /**
-	     * @namespace
-	     * @memberof PressRecognizer
-	     */
-	    defaults: {
-	        event: 'press',
-	        pointers: 1,
-	        time: 251, // minimal time of the pointer to be pressed
-	        threshold: 9 // a minimal movement is ok, but keep it low
-	    },
-
-	    getTouchAction: function() {
-	        return [TOUCH_ACTION_AUTO];
-	    },
-
-	    process: function(input) {
-	        var options = this.options;
-	        var validPointers = input.pointers.length === options.pointers;
-	        var validMovement = input.distance < options.threshold;
-	        var validTime = input.deltaTime > options.time;
-
-	        this._input = input;
-
-	        // we only allow little movement
-	        // and we've reached an end event, so a tap is possible
-	        if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) {
-	            this.reset();
-	        } else if (input.eventType & INPUT_START) {
-	            this.reset();
-	            this._timer = setTimeoutContext(function() {
-	                this.state = STATE_RECOGNIZED;
-	                this.tryEmit();
-	            }, options.time, this);
-	        } else if (input.eventType & INPUT_END) {
-	            return STATE_RECOGNIZED;
-	        }
-	        return STATE_FAILED;
-	    },
-
-	    reset: function() {
-	        clearTimeout(this._timer);
-	    },
-
-	    emit: function(input) {
-	        if (this.state !== STATE_RECOGNIZED) {
-	            return;
-	        }
-
-	        if (input && (input.eventType & INPUT_END)) {
-	            this.manager.emit(this.options.event + 'up', input);
-	        } else {
-	            this._input.timeStamp = now();
-	            this.manager.emit(this.options.event, this._input);
-	        }
-	    }
-	});
-
-	/**
-	 * Rotate
-	 * Recognized when two or more pointer are moving in a circular motion.
-	 * @constructor
-	 * @extends AttrRecognizer
-	 */
-	function RotateRecognizer() {
-	    AttrRecognizer.apply(this, arguments);
-	}
-
-	inherit(RotateRecognizer, AttrRecognizer, {
-	    /**
-	     * @namespace
-	     * @memberof RotateRecognizer
-	     */
-	    defaults: {
-	        event: 'rotate',
-	        threshold: 0,
-	        pointers: 2
-	    },
-
-	    getTouchAction: function() {
-	        return [TOUCH_ACTION_NONE];
-	    },
-
-	    attrTest: function(input) {
-	        return this._super.attrTest.call(this, input) &&
-	            (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);
-	    }
-	});
-
-	/**
-	 * Swipe
-	 * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.
-	 * @constructor
-	 * @extends AttrRecognizer
-	 */
-	function SwipeRecognizer() {
-	    AttrRecognizer.apply(this, arguments);
-	}
-
-	inherit(SwipeRecognizer, AttrRecognizer, {
-	    /**
-	     * @namespace
-	     * @memberof SwipeRecognizer
-	     */
-	    defaults: {
-	        event: 'swipe',
-	        threshold: 10,
-	        velocity: 0.3,
-	        direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,
-	        pointers: 1
-	    },
-
-	    getTouchAction: function() {
-	        return PanRecognizer.prototype.getTouchAction.call(this);
-	    },
-
-	    attrTest: function(input) {
-	        var direction = this.options.direction;
-	        var velocity;
-
-	        if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {
-	            velocity = input.overallVelocity;
-	        } else if (direction & DIRECTION_HORIZONTAL) {
-	            velocity = input.overallVelocityX;
-	        } else if (direction & DIRECTION_VERTICAL) {
-	            velocity = input.overallVelocityY;
-	        }
-
-	        return this._super.attrTest.call(this, input) &&
-	            direction & input.offsetDirection &&
-	            input.distance > this.options.threshold &&
-	            input.maxPointers == this.options.pointers &&
-	            abs(velocity) > this.options.velocity && input.eventType & INPUT_END;
-	    },
-
-	    emit: function(input) {
-	        var direction = directionStr(input.offsetDirection);
-	        if (direction) {
-	            this.manager.emit(this.options.event + direction, input);
-	        }
-
-	        this.manager.emit(this.options.event, input);
-	    }
-	});
-
-	/**
-	 * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur
-	 * between the given interval and position. The delay option can be used to recognize multi-taps without firing
-	 * a single tap.
-	 *
-	 * The eventData from the emitted event contains the property `tapCount`, which contains the amount of
-	 * multi-taps being recognized.
-	 * @constructor
-	 * @extends Recognizer
-	 */
-	function TapRecognizer() {
-	    Recognizer.apply(this, arguments);
-
-	    // previous time and center,
-	    // used for tap counting
-	    this.pTime = false;
-	    this.pCenter = false;
-
-	    this._timer = null;
-	    this._input = null;
-	    this.count = 0;
-	}
-
-	inherit(TapRecognizer, Recognizer, {
-	    /**
-	     * @namespace
-	     * @memberof PinchRecognizer
-	     */
-	    defaults: {
-	        event: 'tap',
-	        pointers: 1,
-	        taps: 1,
-	        interval: 300, // max time between the multi-tap taps
-	        time: 250, // max time of the pointer to be down (like finger on the screen)
-	        threshold: 9, // a minimal movement is ok, but keep it low
-	        posThreshold: 10 // a multi-tap can be a bit off the initial position
-	    },
-
-	    getTouchAction: function() {
-	        return [TOUCH_ACTION_MANIPULATION];
-	    },
-
-	    process: function(input) {
-	        var options = this.options;
-
-	        var validPointers = input.pointers.length === options.pointers;
-	        var validMovement = input.distance < options.threshold;
-	        var validTouchTime = input.deltaTime < options.time;
-
-	        this.reset();
-
-	        if ((input.eventType & INPUT_START) && (this.count === 0)) {
-	            return this.failTimeout();
-	        }
-
-	        // we only allow little movement
-	        // and we've reached an end event, so a tap is possible
-	        if (validMovement && validTouchTime && validPointers) {
-	            if (input.eventType != INPUT_END) {
-	                return this.failTimeout();
-	            }
-
-	            var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true;
-	            var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;
-
-	            this.pTime = input.timeStamp;
-	            this.pCenter = input.center;
-
-	            if (!validMultiTap || !validInterval) {
-	                this.count = 1;
-	            } else {
-	                this.count += 1;
-	            }
-
-	            this._input = input;
-
-	            // if tap count matches we have recognized it,
-	            // else it has began recognizing...
-	            var tapCount = this.count % options.taps;
-	            if (tapCount === 0) {
-	                // no failing requirements, immediately trigger the tap event
-	                // or wait as long as the multitap interval to trigger
-	                if (!this.hasRequireFailures()) {
-	                    return STATE_RECOGNIZED;
-	                } else {
-	                    this._timer = setTimeoutContext(function() {
-	                        this.state = STATE_RECOGNIZED;
-	                        this.tryEmit();
-	                    }, options.interval, this);
-	                    return STATE_BEGAN;
-	                }
-	            }
-	        }
-	        return STATE_FAILED;
-	    },
-
-	    failTimeout: function() {
-	        this._timer = setTimeoutContext(function() {
-	            this.state = STATE_FAILED;
-	        }, this.options.interval, this);
-	        return STATE_FAILED;
-	    },
-
-	    reset: function() {
-	        clearTimeout(this._timer);
-	    },
-
-	    emit: function() {
-	        if (this.state == STATE_RECOGNIZED) {
-	            this._input.tapCount = this.count;
-	            this.manager.emit(this.options.event, this._input);
-	        }
-	    }
-	});
-
-	/**
-	 * Simple way to create a manager with a default set of recognizers.
-	 * @param {HTMLElement} element
-	 * @param {Object} [options]
-	 * @constructor
-	 */
-	function Hammer(element, options) {
-	    options = options || {};
-	    options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset);
-	    return new Manager(element, options);
-	}
-
-	/**
-	 * @const {string}
-	 */
-	Hammer.VERSION = '2.0.7';
-
-	/**
-	 * default settings
-	 * @namespace
-	 */
-	Hammer.defaults = {
-	    /**
-	     * set if DOM events are being triggered.
-	     * But this is slower and unused by simple implementations, so disabled by default.
-	     * @type {Boolean}
-	     * @default false
-	     */
-	    domEvents: false,
-
-	    /**
-	     * The value for the touchAction property/fallback.
-	     * When set to `compute` it will magically set the correct value based on the added recognizers.
-	     * @type {String}
-	     * @default compute
-	     */
-	    touchAction: TOUCH_ACTION_COMPUTE,
-
-	    /**
-	     * @type {Boolean}
-	     * @default true
-	     */
-	    enable: true,
-
-	    /**
-	     * EXPERIMENTAL FEATURE -- can be removed/changed
-	     * Change the parent input target element.
-	     * If Null, then it is being set the to main element.
-	     * @type {Null|EventTarget}
-	     * @default null
-	     */
-	    inputTarget: null,
-
-	    /**
-	     * force an input class
-	     * @type {Null|Function}
-	     * @default null
-	     */
-	    inputClass: null,
-
-	    /**
-	     * Default recognizer setup when calling `Hammer()`
-	     * When creating a new Manager these will be skipped.
-	     * @type {Array}
-	     */
-	    preset: [
-	        // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...]
-	        [RotateRecognizer, {enable: false}],
-	        [PinchRecognizer, {enable: false}, ['rotate']],
-	        [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}],
-	        [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']],
-	        [TapRecognizer],
-	        [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']],
-	        [PressRecognizer]
-	    ],
-
-	    /**
-	     * Some CSS properties can be used to improve the working of Hammer.
-	     * Add them to this method and they will be set when creating a new Manager.
-	     * @namespace
-	     */
-	    cssProps: {
-	        /**
-	         * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.
-	         * @type {String}
-	         * @default 'none'
-	         */
-	        userSelect: 'none',
-
-	        /**
-	         * Disable the Windows Phone grippers when pressing an element.
-	         * @type {String}
-	         * @default 'none'
-	         */
-	        touchSelect: 'none',
-
-	        /**
-	         * Disables the default callout shown when you touch and hold a touch target.
-	         * On iOS, when you touch and hold a touch target such as a link, Safari displays
-	         * a callout containing information about the link. This property allows you to disable that callout.
-	         * @type {String}
-	         * @default 'none'
-	         */
-	        touchCallout: 'none',
-
-	        /**
-	         * Specifies whether zooming is enabled. Used by IE10>
-	         * @type {String}
-	         * @default 'none'
-	         */
-	        contentZooming: 'none',
-
-	        /**
-	         * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.
-	         * @type {String}
-	         * @default 'none'
-	         */
-	        userDrag: 'none',
-
-	        /**
-	         * Overrides the highlight color shown when the user taps a link or a JavaScript
-	         * clickable element in iOS. This property obeys the alpha value, if specified.
-	         * @type {String}
-	         * @default 'rgba(0,0,0,0)'
-	         */
-	        tapHighlightColor: 'rgba(0,0,0,0)'
-	    }
-	};
-
-	var STOP = 1;
-	var FORCED_STOP = 2;
-
-	/**
-	 * Manager
-	 * @param {HTMLElement} element
-	 * @param {Object} [options]
-	 * @constructor
-	 */
-	function Manager(element, options) {
-	    this.options = assign({}, Hammer.defaults, options || {});
-
-	    this.options.inputTarget = this.options.inputTarget || element;
-
-	    this.handlers = {};
-	    this.session = {};
-	    this.recognizers = [];
-	    this.oldCssProps = {};
-
-	    this.element = element;
-	    this.input = createInputInstance(this);
-	    this.touchAction = new TouchAction(this, this.options.touchAction);
-
-	    toggleCssProps(this, true);
-
-	    each(this.options.recognizers, function(item) {
-	        var recognizer = this.add(new (item[0])(item[1]));
-	        item[2] && recognizer.recognizeWith(item[2]);
-	        item[3] && recognizer.requireFailure(item[3]);
-	    }, this);
-	}
-
-	Manager.prototype = {
-	    /**
-	     * set options
-	     * @param {Object} options
-	     * @returns {Manager}
-	     */
-	    set: function(options) {
-	        assign(this.options, options);
-
-	        // Options that need a little more setup
-	        if (options.touchAction) {
-	            this.touchAction.update();
-	        }
-	        if (options.inputTarget) {
-	            // Clean up existing event listeners and reinitialize
-	            this.input.destroy();
-	            this.input.target = options.inputTarget;
-	            this.input.init();
-	        }
-	        return this;
-	    },
-
-	    /**
-	     * stop recognizing for this session.
-	     * This session will be discarded, when a new [input]start event is fired.
-	     * When forced, the recognizer cycle is stopped immediately.
-	     * @param {Boolean} [force]
-	     */
-	    stop: function(force) {
-	        this.session.stopped = force ? FORCED_STOP : STOP;
-	    },
-
-	    /**
-	     * run the recognizers!
-	     * called by the inputHandler function on every movement of the pointers (touches)
-	     * it walks through all the recognizers and tries to detect the gesture that is being made
-	     * @param {Object} inputData
-	     */
-	    recognize: function(inputData) {
-	        var session = this.session;
-	        if (session.stopped) {
-	            return;
-	        }
-
-	        // run the touch-action polyfill
-	        this.touchAction.preventDefaults(inputData);
-
-	        var recognizer;
-	        var recognizers = this.recognizers;
-
-	        // this holds the recognizer that is being recognized.
-	        // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED
-	        // if no recognizer is detecting a thing, it is set to `null`
-	        var curRecognizer = session.curRecognizer;
-
-	        // reset when the last recognizer is recognized
-	        // or when we're in a new session
-	        if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) {
-	            curRecognizer = session.curRecognizer = null;
-	        }
-
-	        var i = 0;
-	        while (i < recognizers.length) {
-	            recognizer = recognizers[i];
-
-	            // find out if we are allowed try to recognize the input for this one.
-	            // 1.   allow if the session is NOT forced stopped (see the .stop() method)
-	            // 2.   allow if we still haven't recognized a gesture in this session, or the this recognizer is the one
-	            //      that is being recognized.
-	            // 3.   allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.
-	            //      this can be setup with the `recognizeWith()` method on the recognizer.
-	            if (session.stopped !== FORCED_STOP && ( // 1
-	                    !curRecognizer || recognizer == curRecognizer || // 2
-	                    recognizer.canRecognizeWith(curRecognizer))) { // 3
-	                recognizer.recognize(inputData);
-	            } else {
-	                recognizer.reset();
-	            }
-
-	            // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the
-	            // current active recognizer. but only if we don't already have an active recognizer
-	            if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {
-	                curRecognizer = session.curRecognizer = recognizer;
-	            }
-	            i++;
-	        }
-	    },
-
-	    /**
-	     * get a recognizer by its event name.
-	     * @param {Recognizer|String} recognizer
-	     * @returns {Recognizer|Null}
-	     */
-	    get: function(recognizer) {
-	        if (recognizer instanceof Recognizer) {
-	            return recognizer;
-	        }
-
-	        var recognizers = this.recognizers;
-	        for (var i = 0; i < recognizers.length; i++) {
-	            if (recognizers[i].options.event == recognizer) {
-	                return recognizers[i];
-	            }
-	        }
-	        return null;
-	    },
-
-	    /**
-	     * add a recognizer to the manager
-	     * existing recognizers with the same event name will be removed
-	     * @param {Recognizer} recognizer
-	     * @returns {Recognizer|Manager}
-	     */
-	    add: function(recognizer) {
-	        if (invokeArrayArg(recognizer, 'add', this)) {
-	            return this;
-	        }
-
-	        // remove existing
-	        var existing = this.get(recognizer.options.event);
-	        if (existing) {
-	            this.remove(existing);
-	        }
-
-	        this.recognizers.push(recognizer);
-	        recognizer.manager = this;
-
-	        this.touchAction.update();
-	        return recognizer;
-	    },
-
-	    /**
-	     * remove a recognizer by name or instance
-	     * @param {Recognizer|String} recognizer
-	     * @returns {Manager}
-	     */
-	    remove: function(recognizer) {
-	        if (invokeArrayArg(recognizer, 'remove', this)) {
-	            return this;
-	        }
-
-	        recognizer = this.get(recognizer);
-
-	        // let's make sure this recognizer exists
-	        if (recognizer) {
-	            var recognizers = this.recognizers;
-	            var index = inArray(recognizers, recognizer);
-
-	            if (index !== -1) {
-	                recognizers.splice(index, 1);
-	                this.touchAction.update();
-	            }
-	        }
-
-	        return this;
-	    },
-
-	    /**
-	     * bind event
-	     * @param {String} events
-	     * @param {Function} handler
-	     * @returns {EventEmitter} this
-	     */
-	    on: function(events, handler) {
-	        if (events === undefined) {
-	            return;
-	        }
-	        if (handler === undefined) {
-	            return;
-	        }
-
-	        var handlers = this.handlers;
-	        each(splitStr(events), function(event) {
-	            handlers[event] = handlers[event] || [];
-	            handlers[event].push(handler);
-	        });
-	        return this;
-	    },
-
-	    /**
-	     * unbind event, leave emit blank to remove all handlers
-	     * @param {String} events
-	     * @param {Function} [handler]
-	     * @returns {EventEmitter} this
-	     */
-	    off: function(events, handler) {
-	        if (events === undefined) {
-	            return;
-	        }
-
-	        var handlers = this.handlers;
-	        each(splitStr(events), function(event) {
-	            if (!handler) {
-	                delete handlers[event];
-	            } else {
-	                handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);
-	            }
-	        });
-	        return this;
-	    },
-
-	    /**
-	     * emit event to the listeners
-	     * @param {String} event
-	     * @param {Object} data
-	     */
-	    emit: function(event, data) {
-	        // we also want to trigger dom events
-	        if (this.options.domEvents) {
-	            triggerDomEvent(event, data);
-	        }
-
-	        // no handlers, so skip it all
-	        var handlers = this.handlers[event] && this.handlers[event].slice();
-	        if (!handlers || !handlers.length) {
-	            return;
-	        }
-
-	        data.type = event;
-	        data.preventDefault = function() {
-	            data.srcEvent.preventDefault();
-	        };
-
-	        var i = 0;
-	        while (i < handlers.length) {
-	            handlers[i](data);
-	            i++;
-	        }
-	    },
-
-	    /**
-	     * destroy the manager and unbinds all events
-	     * it doesn't unbind dom events, that is the user own responsibility
-	     */
-	    destroy: function() {
-	        this.element && toggleCssProps(this, false);
-
-	        this.handlers = {};
-	        this.session = {};
-	        this.input.destroy();
-	        this.element = null;
-	    }
-	};
-
-	/**
-	 * add/remove the css properties as defined in manager.options.cssProps
-	 * @param {Manager} manager
-	 * @param {Boolean} add
-	 */
-	function toggleCssProps(manager, add) {
-	    var element = manager.element;
-	    if (!element.style) {
-	        return;
-	    }
-	    var prop;
-	    each(manager.options.cssProps, function(value, name) {
-	        prop = prefixed(element.style, name);
-	        if (add) {
-	            manager.oldCssProps[prop] = element.style[prop];
-	            element.style[prop] = value;
-	        } else {
-	            element.style[prop] = manager.oldCssProps[prop] || '';
-	        }
-	    });
-	    if (!add) {
-	        manager.oldCssProps = {};
-	    }
-	}
-
-	/**
-	 * trigger dom event
-	 * @param {String} event
-	 * @param {Object} data
-	 */
-	function triggerDomEvent(event, data) {
-	    var gestureEvent = document.createEvent('Event');
-	    gestureEvent.initEvent(event, true, true);
-	    gestureEvent.gesture = data;
-	    data.target.dispatchEvent(gestureEvent);
-	}
-
-	assign(Hammer, {
-	    INPUT_START: INPUT_START,
-	    INPUT_MOVE: INPUT_MOVE,
-	    INPUT_END: INPUT_END,
-	    INPUT_CANCEL: INPUT_CANCEL,
-
-	    STATE_POSSIBLE: STATE_POSSIBLE,
-	    STATE_BEGAN: STATE_BEGAN,
-	    STATE_CHANGED: STATE_CHANGED,
-	    STATE_ENDED: STATE_ENDED,
-	    STATE_RECOGNIZED: STATE_RECOGNIZED,
-	    STATE_CANCELLED: STATE_CANCELLED,
-	    STATE_FAILED: STATE_FAILED,
-
-	    DIRECTION_NONE: DIRECTION_NONE,
-	    DIRECTION_LEFT: DIRECTION_LEFT,
-	    DIRECTION_RIGHT: DIRECTION_RIGHT,
-	    DIRECTION_UP: DIRECTION_UP,
-	    DIRECTION_DOWN: DIRECTION_DOWN,
-	    DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL,
-	    DIRECTION_VERTICAL: DIRECTION_VERTICAL,
-	    DIRECTION_ALL: DIRECTION_ALL,
-
-	    Manager: Manager,
-	    Input: Input,
-	    TouchAction: TouchAction,
-
-	    TouchInput: TouchInput,
-	    MouseInput: MouseInput,
-	    PointerEventInput: PointerEventInput,
-	    TouchMouseInput: TouchMouseInput,
-	    SingleTouchInput: SingleTouchInput,
-
-	    Recognizer: Recognizer,
-	    AttrRecognizer: AttrRecognizer,
-	    Tap: TapRecognizer,
-	    Pan: PanRecognizer,
-	    Swipe: SwipeRecognizer,
-	    Pinch: PinchRecognizer,
-	    Rotate: RotateRecognizer,
-	    Press: PressRecognizer,
-
-	    on: addEventListeners,
-	    off: removeEventListeners,
-	    each: each,
-	    merge: merge,
-	    extend: extend,
-	    assign: assign,
-	    inherit: inherit,
-	    bindFn: bindFn,
-	    prefixed: prefixed
-	});
-
-	// this prevents errors when Hammer is loaded in the presence of an AMD
-	//  style loader but by script tag, not by the loader.
-	var freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line
-	freeGlobal.Hammer = Hammer;
-
-	if (true) {
-	    !(__WEBPACK_AMD_DEFINE_RESULT__ = function() {
-	        return Hammer;
-	    }.call(exports, __webpack_require__, exports, module), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-	} else if (typeof module != 'undefined' && module.exports) {
-	    module.exports = Hammer;
-	} else {
-	    window[exportName] = Hammer;
-	}
-
-	})(window, document, 'Hammer');
-
-
-/***/ })
-/******/ ]);
\ No newline at end of file
diff --git a/built/geo.ext.min.js b/built/geo.ext.min.js
deleted file mode 100644
index 77cab04be1..0000000000
--- a/built/geo.ext.min.js
+++ /dev/null
@@ -1,11 +0,0 @@
-!function(t){function n(r){if(e[r])return e[r].exports;var i=e[r]={exports:{},id:r,loaded:!1};return t[r].call(i.exports,i,i.exports,n),i.loaded=!0,i.exports}var e={};return n.m=t,n.c=e,n.p="dist/built",n(0)}([function(t,n,e){/**
-	 * d3
-	 * @copyright 2010-2016, Michael Bostock
-	 * @license BSD-3-Clause
-	 */
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i?i:"undefined"!=typeof self?self:{};Nn.Hammer=ft,r=function(){return ft}.call(n,e,n,t),!(r!==a&&(t.exports=r))}(window,document,"Hammer")}]);
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diff --git a/built/geo.js b/built/geo.js
deleted file mode 100644
index 2d4974c37b..0000000000
--- a/built/geo.js
+++ /dev/null
@@ -1,62696 +0,0 @@
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-		define(["Hammer", "d3"], factory);
-	else if(typeof exports === 'object')
-		exports["geo"] = factory(require("Hammer"), require("d3"));
-	else
-		root["geo"] = factory(root["Hammer"], root["d3"]);
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-	/** @namespace geo */
-	// License headers that will be preserved in distributed bundles.
-	/**
-	 * GeoJS
-	 * @copyright 2013-2017, Kitware, Inc.
-	 * @license Apache-2.0
-	 *
-	 * Bundled with the following libraries:
-	 *
-	 * vgl
-	 * @copyright 2014-2016, Kitware, Inc.
-	 * @license Apache-2.0
-	 *
-	 * Proj4js
-	 * @copyright 2014, Mike Adair, Richard Greenwood, Didier Richard, Stephen Irons, Olivier Terral and Calvin Metcalf
-	 * @license MIT
-	 *
-	 * gl-matrix
-	 * @copyright 2015, Brandon Jones, Colin MacKenzie IV
-	 * @license MIT
-	 *
-	 * JQuery
-	 * @copyright jQuery Foundation and other contributors
-	 * @license MIT
-	 *
-	 * earcut
-	 * @copyright 2016, Mapbox
-	 * @license ISC
-	 *
-	 * kdbush
-	 * @copyright 2017, Vladimir Agafonkin
-	 * @license ISC
-	 */
-
-	var $ = __webpack_require__(1);
-	__webpack_require__(2);
-
-	__webpack_require__(3);
-
-	module.exports = $.extend({
-	  annotation: __webpack_require__(7),
-	  annotationLayer: __webpack_require__(219),
-	  camera: __webpack_require__(211),
-	  choroplethFeature: __webpack_require__(225),
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-	  domRenderer: __webpack_require__(228),
-	  event: __webpack_require__(9),
-	  feature: __webpack_require__(207),
-	  featureLayer: __webpack_require__(220),
-	  fetchQueue: __webpack_require__(229),
-	  fileReader: __webpack_require__(230),
-	  geo_action: __webpack_require__(10),
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-	  heatmapFeature: __webpack_require__(232),
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-	  jsonReader: __webpack_require__(235),
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-	  mapInteractor: __webpack_require__(222),
-	  object: __webpack_require__(203),
-	  osmLayer: __webpack_require__(238),
-	  pathFeature: __webpack_require__(241),
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-	 * Includes Sizzle.js
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-	 *
-	 * Copyright jQuery Foundation and other contributors
-	 * Released under the MIT license
-	 * http://jquery.org/license
-	 *
-	 * Date: 2016-05-20T17:23Z
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-			// is present, execute the factory and get jQuery.
-			// For environments that do not have a `window` with a `document`
-			// (such as Node.js), expose a factory as module.exports.
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-			// e.g. var jQuery = require("jquery")(window);
-			// See ticket #14549 for more info.
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-				factory( global, true ) :
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-						throw new Error( "jQuery requires a window with a document" );
-					}
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-		end: function() {
-			return this.prevObject || this.constructor();
-		},
-
-		// For internal use only.
-		// Behaves like an Array's method, not like a jQuery method.
-		push: push,
-		sort: arr.sort,
-		splice: arr.splice
-	};
-
-	jQuery.extend = jQuery.fn.extend = function() {
-		var options, name, src, copy, copyIsArray, clone,
-			target = arguments[ 0 ] || {},
-			i = 1,
-			length = arguments.length,
-			deep = false;
-
-		// Handle a deep copy situation
-		if ( typeof target === "boolean" ) {
-			deep = target;
-
-			// Skip the boolean and the target
-			target = arguments[ i ] || {};
-			i++;
-		}
-
-		// Handle case when target is a string or something (possible in deep copy)
-		if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
-			target = {};
-		}
-
-		// Extend jQuery itself if only one argument is passed
-		if ( i === length ) {
-			target = this;
-			i--;
-		}
-
-		for ( ; i < length; i++ ) {
-
-			// Only deal with non-null/undefined values
-			if ( ( options = arguments[ i ] ) != null ) {
-
-				// Extend the base object
-				for ( name in options ) {
-					src = target[ name ];
-					copy = options[ name ];
-
-					// Prevent never-ending loop
-					if ( target === copy ) {
-						continue;
-					}
-
-					// Recurse if we're merging plain objects or arrays
-					if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
-						( copyIsArray = jQuery.isArray( copy ) ) ) ) {
-
-						if ( copyIsArray ) {
-							copyIsArray = false;
-							clone = src && jQuery.isArray( src ) ? src : [];
-
-						} else {
-							clone = src && jQuery.isPlainObject( src ) ? src : {};
-						}
-
-						// Never move original objects, clone them
-						target[ name ] = jQuery.extend( deep, clone, copy );
-
-					// Don't bring in undefined values
-					} else if ( copy !== undefined ) {
-						target[ name ] = copy;
-					}
-				}
-			}
-		}
-
-		// Return the modified object
-		return target;
-	};
-
-	jQuery.extend( {
-
-		// Unique for each copy of jQuery on the page
-		expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
-
-		// Assume jQuery is ready without the ready module
-		isReady: true,
-
-		error: function( msg ) {
-			throw new Error( msg );
-		},
-
-		noop: function() {},
-
-		isFunction: function( obj ) {
-			return jQuery.type( obj ) === "function";
-		},
-
-		isArray: Array.isArray,
-
-		isWindow: function( obj ) {
-			return obj != null && obj === obj.window;
-		},
-
-		isNumeric: function( obj ) {
-
-			// parseFloat NaNs numeric-cast false positives (null|true|false|"")
-			// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
-			// subtraction forces infinities to NaN
-			// adding 1 corrects loss of precision from parseFloat (#15100)
-			var realStringObj = obj && obj.toString();
-			return !jQuery.isArray( obj ) && ( realStringObj - parseFloat( realStringObj ) + 1 ) >= 0;
-		},
-
-		isPlainObject: function( obj ) {
-			var key;
-
-			// Not plain objects:
-			// - Any object or value whose internal [[Class]] property is not "[object Object]"
-			// - DOM nodes
-			// - window
-			if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-				return false;
-			}
-
-			// Not own constructor property must be Object
-			if ( obj.constructor &&
-					!hasOwn.call( obj, "constructor" ) &&
-					!hasOwn.call( obj.constructor.prototype || {}, "isPrototypeOf" ) ) {
-				return false;
-			}
-
-			// Own properties are enumerated firstly, so to speed up,
-			// if last one is own, then all properties are own
-			for ( key in obj ) {}
-
-			return key === undefined || hasOwn.call( obj, key );
-		},
-
-		isEmptyObject: function( obj ) {
-			var name;
-			for ( name in obj ) {
-				return false;
-			}
-			return true;
-		},
-
-		type: function( obj ) {
-			if ( obj == null ) {
-				return obj + "";
-			}
-
-			// Support: Android<4.0, iOS<6 (functionish RegExp)
-			return typeof obj === "object" || typeof obj === "function" ?
-				class2type[ toString.call( obj ) ] || "object" :
-				typeof obj;
-		},
-
-		// Evaluates a script in a global context
-		globalEval: function( code ) {
-			var script,
-				indirect = eval;
-
-			code = jQuery.trim( code );
-
-			if ( code ) {
-
-				// If the code includes a valid, prologue position
-				// strict mode pragma, execute code by injecting a
-				// script tag into the document.
-				if ( code.indexOf( "use strict" ) === 1 ) {
-					script = document.createElement( "script" );
-					script.text = code;
-					document.head.appendChild( script ).parentNode.removeChild( script );
-				} else {
-
-					// Otherwise, avoid the DOM node creation, insertion
-					// and removal by using an indirect global eval
-
-					indirect( code );
-				}
-			}
-		},
-
-		// Convert dashed to camelCase; used by the css and data modules
-		// Support: IE9-11+
-		// Microsoft forgot to hump their vendor prefix (#9572)
-		camelCase: function( string ) {
-			return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-		},
-
-		nodeName: function( elem, name ) {
-			return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-		},
-
-		each: function( obj, callback ) {
-			var length, i = 0;
-
-			if ( isArrayLike( obj ) ) {
-				length = obj.length;
-				for ( ; i < length; i++ ) {
-					if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
-						break;
-					}
-				}
-			}
-
-			return obj;
-		},
-
-		// Support: Android<4.1
-		trim: function( text ) {
-			return text == null ?
-				"" :
-				( text + "" ).replace( rtrim, "" );
-		},
-
-		// results is for internal usage only
-		makeArray: function( arr, results ) {
-			var ret = results || [];
-
-			if ( arr != null ) {
-				if ( isArrayLike( Object( arr ) ) ) {
-					jQuery.merge( ret,
-						typeof arr === "string" ?
-						[ arr ] : arr
-					);
-				} else {
-					push.call( ret, arr );
-				}
-			}
-
-			return ret;
-		},
-
-		inArray: function( elem, arr, i ) {
-			return arr == null ? -1 : indexOf.call( arr, elem, i );
-		},
-
-		merge: function( first, second ) {
-			var len = +second.length,
-				j = 0,
-				i = first.length;
-
-			for ( ; j < len; j++ ) {
-				first[ i++ ] = second[ j ];
-			}
-
-			first.length = i;
-
-			return first;
-		},
-
-		grep: function( elems, callback, invert ) {
-			var callbackInverse,
-				matches = [],
-				i = 0,
-				length = elems.length,
-				callbackExpect = !invert;
-
-			// Go through the array, only saving the items
-			// that pass the validator function
-			for ( ; i < length; i++ ) {
-				callbackInverse = !callback( elems[ i ], i );
-				if ( callbackInverse !== callbackExpect ) {
-					matches.push( elems[ i ] );
-				}
-			}
-
-			return matches;
-		},
-
-		// arg is for internal usage only
-		map: function( elems, callback, arg ) {
-			var length, value,
-				i = 0,
-				ret = [];
-
-			// Go through the array, translating each of the items to their new values
-			if ( isArrayLike( elems ) ) {
-				length = elems.length;
-				for ( ; i < length; i++ ) {
-					value = callback( elems[ i ], i, arg );
-
-					if ( value != null ) {
-						ret.push( value );
-					}
-				}
-
-			// Go through every key on the object,
-			} else {
-				for ( i in elems ) {
-					value = callback( elems[ i ], i, arg );
-
-					if ( value != null ) {
-						ret.push( value );
-					}
-				}
-			}
-
-			// Flatten any nested arrays
-			return concat.apply( [], ret );
-		},
-
-		// A global GUID counter for objects
-		guid: 1,
-
-		// Bind a function to a context, optionally partially applying any
-		// arguments.
-		proxy: function( fn, context ) {
-			var tmp, args, proxy;
-
-			if ( typeof context === "string" ) {
-				tmp = fn[ context ];
-				context = fn;
-				fn = tmp;
-			}
-
-			// Quick check to determine if target is callable, in the spec
-			// this throws a TypeError, but we will just return undefined.
-			if ( !jQuery.isFunction( fn ) ) {
-				return undefined;
-			}
-
-			// Simulated bind
-			args = slice.call( arguments, 2 );
-			proxy = function() {
-				return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
-			};
-
-			// Set the guid of unique handler to the same of original handler, so it can be removed
-			proxy.guid = fn.guid = fn.guid || jQuery.guid++;
-
-			return proxy;
-		},
-
-		now: Date.now,
-
-		// jQuery.support is not used in Core but other projects attach their
-		// properties to it so it needs to exist.
-		support: support
-	} );
-
-	// JSHint would error on this code due to the Symbol not being defined in ES5.
-	// Defining this global in .jshintrc would create a danger of using the global
-	// unguarded in another place, it seems safer to just disable JSHint for these
-	// three lines.
-	/* jshint ignore: start */
-	if ( typeof Symbol === "function" ) {
-		jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
-	}
-	/* jshint ignore: end */
-
-	// Populate the class2type map
-	jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
-	function( i, name ) {
-		class2type[ "[object " + name + "]" ] = name.toLowerCase();
-	} );
-
-	function isArrayLike( obj ) {
-
-		// Support: iOS 8.2 (not reproducible in simulator)
-		// `in` check used to prevent JIT error (gh-2145)
-		// hasOwn isn't used here due to false negatives
-		// regarding Nodelist length in IE
-		var length = !!obj && "length" in obj && obj.length,
-			type = jQuery.type( obj );
-
-		if ( type === "function" || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		return type === "array" || length === 0 ||
-			typeof length === "number" && length > 0 && ( length - 1 ) in obj;
-	}
-	var Sizzle =
-	/*!
-	 * Sizzle CSS Selector Engine v2.2.1
-	 * http://sizzlejs.com/
-	 *
-	 * Copyright jQuery Foundation and other contributors
-	 * Released under the MIT license
-	 * http://jquery.org/license
-	 *
-	 * Date: 2015-10-17
-	 */
-	(function( window ) {
-
-	var i,
-		support,
-		Expr,
-		getText,
-		isXML,
-		tokenize,
-		compile,
-		select,
-		outermostContext,
-		sortInput,
-		hasDuplicate,
-
-		// Local document vars
-		setDocument,
-		document,
-		docElem,
-		documentIsHTML,
-		rbuggyQSA,
-		rbuggyMatches,
-		matches,
-		contains,
-
-		// Instance-specific data
-		expando = "sizzle" + 1 * new Date(),
-		preferredDoc = window.document,
-		dirruns = 0,
-		done = 0,
-		classCache = createCache(),
-		tokenCache = createCache(),
-		compilerCache = createCache(),
-		sortOrder = function( a, b ) {
-			if ( a === b ) {
-				hasDuplicate = true;
-			}
-			return 0;
-		},
-
-		// General-purpose constants
-		MAX_NEGATIVE = 1 << 31,
-
-		// Instance methods
-		hasOwn = ({}).hasOwnProperty,
-		arr = [],
-		pop = arr.pop,
-		push_native = arr.push,
-		push = arr.push,
-		slice = arr.slice,
-		// Use a stripped-down indexOf as it's faster than native
-		// http://jsperf.com/thor-indexof-vs-for/5
-		indexOf = function( list, elem ) {
-			var i = 0,
-				len = list.length;
-			for ( ; i < len; i++ ) {
-				if ( list[i] === elem ) {
-					return i;
-				}
-			}
-			return -1;
-		},
-
-		booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
-
-		// Regular expressions
-
-		// http://www.w3.org/TR/css3-selectors/#whitespace
-		whitespace = "[\\x20\\t\\r\\n\\f]",
-
-		// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
-		identifier = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
-
-		// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
-		attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
-			// Operator (capture 2)
-			"*([*^$|!~]?=)" + whitespace +
-			// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
-			"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
-			"*\\]",
-
-		pseudos = ":(" + identifier + ")(?:\\((" +
-			// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
-			// 1. quoted (capture 3; capture 4 or capture 5)
-			"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
-			// 2. simple (capture 6)
-			"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
-			// 3. anything else (capture 2)
-			".*" +
-			")\\)|)",
-
-		// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
-		rwhitespace = new RegExp( whitespace + "+", "g" ),
-		rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
-
-		rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
-		rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
-
-		rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
-
-		rpseudo = new RegExp( pseudos ),
-		ridentifier = new RegExp( "^" + identifier + "$" ),
-
-		matchExpr = {
-			"ID": new RegExp( "^#(" + identifier + ")" ),
-			"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
-			"TAG": new RegExp( "^(" + identifier + "|[*])" ),
-			"ATTR": new RegExp( "^" + attributes ),
-			"PSEUDO": new RegExp( "^" + pseudos ),
-			"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
-				"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
-				"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
-			"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
-			// For use in libraries implementing .is()
-			// We use this for POS matching in `select`
-			"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
-				whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
-		},
-
-		rinputs = /^(?:input|select|textarea|button)$/i,
-		rheader = /^h\d$/i,
-
-		rnative = /^[^{]+\{\s*\[native \w/,
-
-		// Easily-parseable/retrievable ID or TAG or CLASS selectors
-		rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
-
-		rsibling = /[+~]/,
-		rescape = /'|\\/g,
-
-		// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
-		runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
-		funescape = function( _, escaped, escapedWhitespace ) {
-			var high = "0x" + escaped - 0x10000;
-			// NaN means non-codepoint
-			// Support: Firefox<24
-			// Workaround erroneous numeric interpretation of +"0x"
-			return high !== high || escapedWhitespace ?
-				escaped :
-				high < 0 ?
-					// BMP codepoint
-					String.fromCharCode( high + 0x10000 ) :
-					// Supplemental Plane codepoint (surrogate pair)
-					String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
-		},
-
-		// Used for iframes
-		// See setDocument()
-		// Removing the function wrapper causes a "Permission Denied"
-		// error in IE
-		unloadHandler = function() {
-			setDocument();
-		};
-
-	// Optimize for push.apply( _, NodeList )
-	try {
-		push.apply(
-			(arr = slice.call( preferredDoc.childNodes )),
-			preferredDoc.childNodes
-		);
-		// Support: Android<4.0
-		// Detect silently failing push.apply
-		arr[ preferredDoc.childNodes.length ].nodeType;
-	} catch ( e ) {
-		push = { apply: arr.length ?
-
-			// Leverage slice if possible
-			function( target, els ) {
-				push_native.apply( target, slice.call(els) );
-			} :
-
-			// Support: IE<9
-			// Otherwise append directly
-			function( target, els ) {
-				var j = target.length,
-					i = 0;
-				// Can't trust NodeList.length
-				while ( (target[j++] = els[i++]) ) {}
-				target.length = j - 1;
-			}
-		};
-	}
-
-	function Sizzle( selector, context, results, seed ) {
-		var m, i, elem, nid, nidselect, match, groups, newSelector,
-			newContext = context && context.ownerDocument,
-
-			// nodeType defaults to 9, since context defaults to document
-			nodeType = context ? context.nodeType : 9;
-
-		results = results || [];
-
-		// Return early from calls with invalid selector or context
-		if ( typeof selector !== "string" || !selector ||
-			nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
-
-			return results;
-		}
-
-		// Try to shortcut find operations (as opposed to filters) in HTML documents
-		if ( !seed ) {
-
-			if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
-				setDocument( context );
-			}
-			context = context || document;
-
-			if ( documentIsHTML ) {
-
-				// If the selector is sufficiently simple, try using a "get*By*" DOM method
-				// (excepting DocumentFragment context, where the methods don't exist)
-				if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
-
-					// ID selector
-					if ( (m = match[1]) ) {
-
-						// Document context
-						if ( nodeType === 9 ) {
-							if ( (elem = context.getElementById( m )) ) {
-
-								// Support: IE, Opera, Webkit
-								// TODO: identify versions
-								// getElementById can match elements by name instead of ID
-								if ( elem.id === m ) {
-									results.push( elem );
-									return results;
-								}
-							} else {
-								return results;
-							}
-
-						// Element context
-						} else {
-
-							// Support: IE, Opera, Webkit
-							// TODO: identify versions
-							// getElementById can match elements by name instead of ID
-							if ( newContext && (elem = newContext.getElementById( m )) &&
-								contains( context, elem ) &&
-								elem.id === m ) {
-
-								results.push( elem );
-								return results;
-							}
-						}
-
-					// Type selector
-					} else if ( match[2] ) {
-						push.apply( results, context.getElementsByTagName( selector ) );
-						return results;
-
-					// Class selector
-					} else if ( (m = match[3]) && support.getElementsByClassName &&
-						context.getElementsByClassName ) {
-
-						push.apply( results, context.getElementsByClassName( m ) );
-						return results;
-					}
-				}
-
-				// Take advantage of querySelectorAll
-				if ( support.qsa &&
-					!compilerCache[ selector + " " ] &&
-					(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
-
-					if ( nodeType !== 1 ) {
-						newContext = context;
-						newSelector = selector;
-
-					// qSA looks outside Element context, which is not what we want
-					// Thanks to Andrew Dupont for this workaround technique
-					// Support: IE <=8
-					// Exclude object elements
-					} else if ( context.nodeName.toLowerCase() !== "object" ) {
-
-						// Capture the context ID, setting it first if necessary
-						if ( (nid = context.getAttribute( "id" )) ) {
-							nid = nid.replace( rescape, "\\$&" );
-						} else {
-							context.setAttribute( "id", (nid = expando) );
-						}
-
-						// Prefix every selector in the list
-						groups = tokenize( selector );
-						i = groups.length;
-						nidselect = ridentifier.test( nid ) ? "#" + nid : "[id='" + nid + "']";
-						while ( i-- ) {
-							groups[i] = nidselect + " " + toSelector( groups[i] );
-						}
-						newSelector = groups.join( "," );
-
-						// Expand context for sibling selectors
-						newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
-							context;
-					}
-
-					if ( newSelector ) {
-						try {
-							push.apply( results,
-								newContext.querySelectorAll( newSelector )
-							);
-							return results;
-						} catch ( qsaError ) {
-						} finally {
-							if ( nid === expando ) {
-								context.removeAttribute( "id" );
-							}
-						}
-					}
-				}
-			}
-		}
-
-		// All others
-		return select( selector.replace( rtrim, "$1" ), context, results, seed );
-	}
-
-	/**
-	 * Create key-value caches of limited size
-	 * @returns {function(string, object)} Returns the Object data after storing it on itself with
-	 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
-	 *	deleting the oldest entry
-	 */
-	function createCache() {
-		var keys = [];
-
-		function cache( key, value ) {
-			// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
-			if ( keys.push( key + " " ) > Expr.cacheLength ) {
-				// Only keep the most recent entries
-				delete cache[ keys.shift() ];
-			}
-			return (cache[ key + " " ] = value);
-		}
-		return cache;
-	}
-
-	/**
-	 * Mark a function for special use by Sizzle
-	 * @param {Function} fn The function to mark
-	 */
-	function markFunction( fn ) {
-		fn[ expando ] = true;
-		return fn;
-	}
-
-	/**
-	 * Support testing using an element
-	 * @param {Function} fn Passed the created div and expects a boolean result
-	 */
-	function assert( fn ) {
-		var div = document.createElement("div");
-
-		try {
-			return !!fn( div );
-		} catch (e) {
-			return false;
-		} finally {
-			// Remove from its parent by default
-			if ( div.parentNode ) {
-				div.parentNode.removeChild( div );
-			}
-			// release memory in IE
-			div = null;
-		}
-	}
-
-	/**
-	 * Adds the same handler for all of the specified attrs
-	 * @param {String} attrs Pipe-separated list of attributes
-	 * @param {Function} handler The method that will be applied
-	 */
-	function addHandle( attrs, handler ) {
-		var arr = attrs.split("|"),
-			i = arr.length;
-
-		while ( i-- ) {
-			Expr.attrHandle[ arr[i] ] = handler;
-		}
-	}
-
-	/**
-	 * Checks document order of two siblings
-	 * @param {Element} a
-	 * @param {Element} b
-	 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
-	 */
-	function siblingCheck( a, b ) {
-		var cur = b && a,
-			diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
-				( ~b.sourceIndex || MAX_NEGATIVE ) -
-				( ~a.sourceIndex || MAX_NEGATIVE );
-
-		// Use IE sourceIndex if available on both nodes
-		if ( diff ) {
-			return diff;
-		}
-
-		// Check if b follows a
-		if ( cur ) {
-			while ( (cur = cur.nextSibling) ) {
-				if ( cur === b ) {
-					return -1;
-				}
-			}
-		}
-
-		return a ? 1 : -1;
-	}
-
-	/**
-	 * Returns a function to use in pseudos for input types
-	 * @param {String} type
-	 */
-	function createInputPseudo( type ) {
-		return function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return name === "input" && elem.type === type;
-		};
-	}
-
-	/**
-	 * Returns a function to use in pseudos for buttons
-	 * @param {String} type
-	 */
-	function createButtonPseudo( type ) {
-		return function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return (name === "input" || name === "button") && elem.type === type;
-		};
-	}
-
-	/**
-	 * Returns a function to use in pseudos for positionals
-	 * @param {Function} fn
-	 */
-	function createPositionalPseudo( fn ) {
-		return markFunction(function( argument ) {
-			argument = +argument;
-			return markFunction(function( seed, matches ) {
-				var j,
-					matchIndexes = fn( [], seed.length, argument ),
-					i = matchIndexes.length;
-
-				// Match elements found at the specified indexes
-				while ( i-- ) {
-					if ( seed[ (j = matchIndexes[i]) ] ) {
-						seed[j] = !(matches[j] = seed[j]);
-					}
-				}
-			});
-		});
-	}
-
-	/**
-	 * Checks a node for validity as a Sizzle context
-	 * @param {Element|Object=} context
-	 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
-	 */
-	function testContext( context ) {
-		return context && typeof context.getElementsByTagName !== "undefined" && context;
-	}
-
-	// Expose support vars for convenience
-	support = Sizzle.support = {};
-
-	/**
-	 * Detects XML nodes
-	 * @param {Element|Object} elem An element or a document
-	 * @returns {Boolean} True iff elem is a non-HTML XML node
-	 */
-	isXML = Sizzle.isXML = function( elem ) {
-		// documentElement is verified for cases where it doesn't yet exist
-		// (such as loading iframes in IE - #4833)
-		var documentElement = elem && (elem.ownerDocument || elem).documentElement;
-		return documentElement ? documentElement.nodeName !== "HTML" : false;
-	};
-
-	/**
-	 * Sets document-related variables once based on the current document
-	 * @param {Element|Object} [doc] An element or document object to use to set the document
-	 * @returns {Object} Returns the current document
-	 */
-	setDocument = Sizzle.setDocument = function( node ) {
-		var hasCompare, parent,
-			doc = node ? node.ownerDocument || node : preferredDoc;
-
-		// Return early if doc is invalid or already selected
-		if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
-			return document;
-		}
-
-		// Update global variables
-		document = doc;
-		docElem = document.documentElement;
-		documentIsHTML = !isXML( document );
-
-		// Support: IE 9-11, Edge
-		// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
-		if ( (parent = document.defaultView) && parent.top !== parent ) {
-			// Support: IE 11
-			if ( parent.addEventListener ) {
-				parent.addEventListener( "unload", unloadHandler, false );
-
-			// Support: IE 9 - 10 only
-			} else if ( parent.attachEvent ) {
-				parent.attachEvent( "onunload", unloadHandler );
-			}
-		}
-
-		/* Attributes
-		---------------------------------------------------------------------- */
-
-		// Support: IE<8
-		// Verify that getAttribute really returns attributes and not properties
-		// (excepting IE8 booleans)
-		support.attributes = assert(function( div ) {
-			div.className = "i";
-			return !div.getAttribute("className");
-		});
-
-		/* getElement(s)By*
-		---------------------------------------------------------------------- */
-
-		// Check if getElementsByTagName("*") returns only elements
-		support.getElementsByTagName = assert(function( div ) {
-			div.appendChild( document.createComment("") );
-			return !div.getElementsByTagName("*").length;
-		});
-
-		// Support: IE<9
-		support.getElementsByClassName = rnative.test( document.getElementsByClassName );
-
-		// Support: IE<10
-		// Check if getElementById returns elements by name
-		// The broken getElementById methods don't pick up programatically-set names,
-		// so use a roundabout getElementsByName test
-		support.getById = assert(function( div ) {
-			docElem.appendChild( div ).id = expando;
-			return !document.getElementsByName || !document.getElementsByName( expando ).length;
-		});
-
-		// ID find and filter
-		if ( support.getById ) {
-			Expr.find["ID"] = function( id, context ) {
-				if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
-					var m = context.getElementById( id );
-					return m ? [ m ] : [];
-				}
-			};
-			Expr.filter["ID"] = function( id ) {
-				var attrId = id.replace( runescape, funescape );
-				return function( elem ) {
-					return elem.getAttribute("id") === attrId;
-				};
-			};
-		} else {
-			// Support: IE6/7
-			// getElementById is not reliable as a find shortcut
-			delete Expr.find["ID"];
-
-			Expr.filter["ID"] =  function( id ) {
-				var attrId = id.replace( runescape, funescape );
-				return function( elem ) {
-					var node = typeof elem.getAttributeNode !== "undefined" &&
-						elem.getAttributeNode("id");
-					return node && node.value === attrId;
-				};
-			};
-		}
-
-		// Tag
-		Expr.find["TAG"] = support.getElementsByTagName ?
-			function( tag, context ) {
-				if ( typeof context.getElementsByTagName !== "undefined" ) {
-					return context.getElementsByTagName( tag );
-
-				// DocumentFragment nodes don't have gEBTN
-				} else if ( support.qsa ) {
-					return context.querySelectorAll( tag );
-				}
-			} :
-
-			function( tag, context ) {
-				var elem,
-					tmp = [],
-					i = 0,
-					// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
-					results = context.getElementsByTagName( tag );
-
-				// Filter out possible comments
-				if ( tag === "*" ) {
-					while ( (elem = results[i++]) ) {
-						if ( elem.nodeType === 1 ) {
-							tmp.push( elem );
-						}
-					}
-
-					return tmp;
-				}
-				return results;
-			};
-
-		// Class
-		Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
-			if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
-				return context.getElementsByClassName( className );
-			}
-		};
-
-		/* QSA/matchesSelector
-		---------------------------------------------------------------------- */
-
-		// QSA and matchesSelector support
-
-		// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
-		rbuggyMatches = [];
-
-		// qSa(:focus) reports false when true (Chrome 21)
-		// We allow this because of a bug in IE8/9 that throws an error
-		// whenever `document.activeElement` is accessed on an iframe
-		// So, we allow :focus to pass through QSA all the time to avoid the IE error
-		// See http://bugs.jquery.com/ticket/13378
-		rbuggyQSA = [];
-
-		if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
-			// Build QSA regex
-			// Regex strategy adopted from Diego Perini
-			assert(function( div ) {
-				// Select is set to empty string on purpose
-				// This is to test IE's treatment of not explicitly
-				// setting a boolean content attribute,
-				// since its presence should be enough
-				// http://bugs.jquery.com/ticket/12359
-				docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
-					"<select id='" + expando + "-\r\\' msallowcapture=''>" +
-					"<option selected=''></option></select>";
-
-				// Support: IE8, Opera 11-12.16
-				// Nothing should be selected when empty strings follow ^= or $= or *=
-				// The test attribute must be unknown in Opera but "safe" for WinRT
-				// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
-				if ( div.querySelectorAll("[msallowcapture^='']").length ) {
-					rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
-				}
-
-				// Support: IE8
-				// Boolean attributes and "value" are not treated correctly
-				if ( !div.querySelectorAll("[selected]").length ) {
-					rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
-				}
-
-				// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
-				if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
-					rbuggyQSA.push("~=");
-				}
-
-				// Webkit/Opera - :checked should return selected option elements
-				// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-				// IE8 throws error here and will not see later tests
-				if ( !div.querySelectorAll(":checked").length ) {
-					rbuggyQSA.push(":checked");
-				}
-
-				// Support: Safari 8+, iOS 8+
-				// https://bugs.webkit.org/show_bug.cgi?id=136851
-				// In-page `selector#id sibing-combinator selector` fails
-				if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
-					rbuggyQSA.push(".#.+[+~]");
-				}
-			});
-
-			assert(function( div ) {
-				// Support: Windows 8 Native Apps
-				// The type and name attributes are restricted during .innerHTML assignment
-				var input = document.createElement("input");
-				input.setAttribute( "type", "hidden" );
-				div.appendChild( input ).setAttribute( "name", "D" );
-
-				// Support: IE8
-				// Enforce case-sensitivity of name attribute
-				if ( div.querySelectorAll("[name=d]").length ) {
-					rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
-				}
-
-				// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
-				// IE8 throws error here and will not see later tests
-				if ( !div.querySelectorAll(":enabled").length ) {
-					rbuggyQSA.push( ":enabled", ":disabled" );
-				}
-
-				// Opera 10-11 does not throw on post-comma invalid pseudos
-				div.querySelectorAll("*,:x");
-				rbuggyQSA.push(",.*:");
-			});
-		}
-
-		if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
-			docElem.webkitMatchesSelector ||
-			docElem.mozMatchesSelector ||
-			docElem.oMatchesSelector ||
-			docElem.msMatchesSelector) )) ) {
-
-			assert(function( div ) {
-				// Check to see if it's possible to do matchesSelector
-				// on a disconnected node (IE 9)
-				support.disconnectedMatch = matches.call( div, "div" );
-
-				// This should fail with an exception
-				// Gecko does not error, returns false instead
-				matches.call( div, "[s!='']:x" );
-				rbuggyMatches.push( "!=", pseudos );
-			});
-		}
-
-		rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
-		rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
-
-		/* Contains
-		---------------------------------------------------------------------- */
-		hasCompare = rnative.test( docElem.compareDocumentPosition );
-
-		// Element contains another
-		// Purposefully self-exclusive
-		// As in, an element does not contain itself
-		contains = hasCompare || rnative.test( docElem.contains ) ?
-			function( a, b ) {
-				var adown = a.nodeType === 9 ? a.documentElement : a,
-					bup = b && b.parentNode;
-				return a === bup || !!( bup && bup.nodeType === 1 && (
-					adown.contains ?
-						adown.contains( bup ) :
-						a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
-				));
-			} :
-			function( a, b ) {
-				if ( b ) {
-					while ( (b = b.parentNode) ) {
-						if ( b === a ) {
-							return true;
-						}
-					}
-				}
-				return false;
-			};
-
-		/* Sorting
-		---------------------------------------------------------------------- */
-
-		// Document order sorting
-		sortOrder = hasCompare ?
-		function( a, b ) {
-
-			// Flag for duplicate removal
-			if ( a === b ) {
-				hasDuplicate = true;
-				return 0;
-			}
-
-			// Sort on method existence if only one input has compareDocumentPosition
-			var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
-			if ( compare ) {
-				return compare;
-			}
-
-			// Calculate position if both inputs belong to the same document
-			compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
-				a.compareDocumentPosition( b ) :
-
-				// Otherwise we know they are disconnected
-				1;
-
-			// Disconnected nodes
-			if ( compare & 1 ||
-				(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
-
-				// Choose the first element that is related to our preferred document
-				if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
-					return -1;
-				}
-				if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
-					return 1;
-				}
-
-				// Maintain original order
-				return sortInput ?
-					( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-					0;
-			}
-
-			return compare & 4 ? -1 : 1;
-		} :
-		function( a, b ) {
-			// Exit early if the nodes are identical
-			if ( a === b ) {
-				hasDuplicate = true;
-				return 0;
-			}
-
-			var cur,
-				i = 0,
-				aup = a.parentNode,
-				bup = b.parentNode,
-				ap = [ a ],
-				bp = [ b ];
-
-			// Parentless nodes are either documents or disconnected
-			if ( !aup || !bup ) {
-				return a === document ? -1 :
-					b === document ? 1 :
-					aup ? -1 :
-					bup ? 1 :
-					sortInput ?
-					( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-					0;
-
-			// If the nodes are siblings, we can do a quick check
-			} else if ( aup === bup ) {
-				return siblingCheck( a, b );
-			}
-
-			// Otherwise we need full lists of their ancestors for comparison
-			cur = a;
-			while ( (cur = cur.parentNode) ) {
-				ap.unshift( cur );
-			}
-			cur = b;
-			while ( (cur = cur.parentNode) ) {
-				bp.unshift( cur );
-			}
-
-			// Walk down the tree looking for a discrepancy
-			while ( ap[i] === bp[i] ) {
-				i++;
-			}
-
-			return i ?
-				// Do a sibling check if the nodes have a common ancestor
-				siblingCheck( ap[i], bp[i] ) :
-
-				// Otherwise nodes in our document sort first
-				ap[i] === preferredDoc ? -1 :
-				bp[i] === preferredDoc ? 1 :
-				0;
-		};
-
-		return document;
-	};
-
-	Sizzle.matches = function( expr, elements ) {
-		return Sizzle( expr, null, null, elements );
-	};
-
-	Sizzle.matchesSelector = function( elem, expr ) {
-		// Set document vars if needed
-		if ( ( elem.ownerDocument || elem ) !== document ) {
-			setDocument( elem );
-		}
-
-		// Make sure that attribute selectors are quoted
-		expr = expr.replace( rattributeQuotes, "='$1']" );
-
-		if ( support.matchesSelector && documentIsHTML &&
-			!compilerCache[ expr + " " ] &&
-			( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
-			( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
-
-			try {
-				var ret = matches.call( elem, expr );
-
-				// IE 9's matchesSelector returns false on disconnected nodes
-				if ( ret || support.disconnectedMatch ||
-						// As well, disconnected nodes are said to be in a document
-						// fragment in IE 9
-						elem.document && elem.document.nodeType !== 11 ) {
-					return ret;
-				}
-			} catch (e) {}
-		}
-
-		return Sizzle( expr, document, null, [ elem ] ).length > 0;
-	};
-
-	Sizzle.contains = function( context, elem ) {
-		// Set document vars if needed
-		if ( ( context.ownerDocument || context ) !== document ) {
-			setDocument( context );
-		}
-		return contains( context, elem );
-	};
-
-	Sizzle.attr = function( elem, name ) {
-		// Set document vars if needed
-		if ( ( elem.ownerDocument || elem ) !== document ) {
-			setDocument( elem );
-		}
-
-		var fn = Expr.attrHandle[ name.toLowerCase() ],
-			// Don't get fooled by Object.prototype properties (jQuery #13807)
-			val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
-				fn( elem, name, !documentIsHTML ) :
-				undefined;
-
-		return val !== undefined ?
-			val :
-			support.attributes || !documentIsHTML ?
-				elem.getAttribute( name ) :
-				(val = elem.getAttributeNode(name)) && val.specified ?
-					val.value :
-					null;
-	};
-
-	Sizzle.error = function( msg ) {
-		throw new Error( "Syntax error, unrecognized expression: " + msg );
-	};
-
-	/**
-	 * Document sorting and removing duplicates
-	 * @param {ArrayLike} results
-	 */
-	Sizzle.uniqueSort = function( results ) {
-		var elem,
-			duplicates = [],
-			j = 0,
-			i = 0;
-
-		// Unless we *know* we can detect duplicates, assume their presence
-		hasDuplicate = !support.detectDuplicates;
-		sortInput = !support.sortStable && results.slice( 0 );
-		results.sort( sortOrder );
-
-		if ( hasDuplicate ) {
-			while ( (elem = results[i++]) ) {
-				if ( elem === results[ i ] ) {
-					j = duplicates.push( i );
-				}
-			}
-			while ( j-- ) {
-				results.splice( duplicates[ j ], 1 );
-			}
-		}
-
-		// Clear input after sorting to release objects
-		// See https://github.com/jquery/sizzle/pull/225
-		sortInput = null;
-
-		return results;
-	};
-
-	/**
-	 * Utility function for retrieving the text value of an array of DOM nodes
-	 * @param {Array|Element} elem
-	 */
-	getText = Sizzle.getText = function( elem ) {
-		var node,
-			ret = "",
-			i = 0,
-			nodeType = elem.nodeType;
-
-		if ( !nodeType ) {
-			// If no nodeType, this is expected to be an array
-			while ( (node = elem[i++]) ) {
-				// Do not traverse comment nodes
-				ret += getText( node );
-			}
-		} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-			// Use textContent for elements
-			// innerText usage removed for consistency of new lines (jQuery #11153)
-			if ( typeof elem.textContent === "string" ) {
-				return elem.textContent;
-			} else {
-				// Traverse its children
-				for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-					ret += getText( elem );
-				}
-			}
-		} else if ( nodeType === 3 || nodeType === 4 ) {
-			return elem.nodeValue;
-		}
-		// Do not include comment or processing instruction nodes
-
-		return ret;
-	};
-
-	Expr = Sizzle.selectors = {
-
-		// Can be adjusted by the user
-		cacheLength: 50,
-
-		createPseudo: markFunction,
-
-		match: matchExpr,
-
-		attrHandle: {},
-
-		find: {},
-
-		relative: {
-			">": { dir: "parentNode", first: true },
-			" ": { dir: "parentNode" },
-			"+": { dir: "previousSibling", first: true },
-			"~": { dir: "previousSibling" }
-		},
-
-		preFilter: {
-			"ATTR": function( match ) {
-				match[1] = match[1].replace( runescape, funescape );
-
-				// Move the given value to match[3] whether quoted or unquoted
-				match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
-
-				if ( match[2] === "~=" ) {
-					match[3] = " " + match[3] + " ";
-				}
-
-				return match.slice( 0, 4 );
-			},
-
-			"CHILD": function( match ) {
-				/* matches from matchExpr["CHILD"]
-					1 type (only|nth|...)
-					2 what (child|of-type)
-					3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
-					4 xn-component of xn+y argument ([+-]?\d*n|)
-					5 sign of xn-component
-					6 x of xn-component
-					7 sign of y-component
-					8 y of y-component
-				*/
-				match[1] = match[1].toLowerCase();
-
-				if ( match[1].slice( 0, 3 ) === "nth" ) {
-					// nth-* requires argument
-					if ( !match[3] ) {
-						Sizzle.error( match[0] );
-					}
-
-					// numeric x and y parameters for Expr.filter.CHILD
-					// remember that false/true cast respectively to 0/1
-					match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
-					match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
-
-				// other types prohibit arguments
-				} else if ( match[3] ) {
-					Sizzle.error( match[0] );
-				}
-
-				return match;
-			},
-
-			"PSEUDO": function( match ) {
-				var excess,
-					unquoted = !match[6] && match[2];
-
-				if ( matchExpr["CHILD"].test( match[0] ) ) {
-					return null;
-				}
-
-				// Accept quoted arguments as-is
-				if ( match[3] ) {
-					match[2] = match[4] || match[5] || "";
-
-				// Strip excess characters from unquoted arguments
-				} else if ( unquoted && rpseudo.test( unquoted ) &&
-					// Get excess from tokenize (recursively)
-					(excess = tokenize( unquoted, true )) &&
-					// advance to the next closing parenthesis
-					(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
-
-					// excess is a negative index
-					match[0] = match[0].slice( 0, excess );
-					match[2] = unquoted.slice( 0, excess );
-				}
-
-				// Return only captures needed by the pseudo filter method (type and argument)
-				return match.slice( 0, 3 );
-			}
-		},
-
-		filter: {
-
-			"TAG": function( nodeNameSelector ) {
-				var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
-				return nodeNameSelector === "*" ?
-					function() { return true; } :
-					function( elem ) {
-						return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
-					};
-			},
-
-			"CLASS": function( className ) {
-				var pattern = classCache[ className + " " ];
-
-				return pattern ||
-					(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
-					classCache( className, function( elem ) {
-						return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
-					});
-			},
-
-			"ATTR": function( name, operator, check ) {
-				return function( elem ) {
-					var result = Sizzle.attr( elem, name );
-
-					if ( result == null ) {
-						return operator === "!=";
-					}
-					if ( !operator ) {
-						return true;
-					}
-
-					result += "";
-
-					return operator === "=" ? result === check :
-						operator === "!=" ? result !== check :
-						operator === "^=" ? check && result.indexOf( check ) === 0 :
-						operator === "*=" ? check && result.indexOf( check ) > -1 :
-						operator === "$=" ? check && result.slice( -check.length ) === check :
-						operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
-						operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
-						false;
-				};
-			},
-
-			"CHILD": function( type, what, argument, first, last ) {
-				var simple = type.slice( 0, 3 ) !== "nth",
-					forward = type.slice( -4 ) !== "last",
-					ofType = what === "of-type";
-
-				return first === 1 && last === 0 ?
-
-					// Shortcut for :nth-*(n)
-					function( elem ) {
-						return !!elem.parentNode;
-					} :
-
-					function( elem, context, xml ) {
-						var cache, uniqueCache, outerCache, node, nodeIndex, start,
-							dir = simple !== forward ? "nextSibling" : "previousSibling",
-							parent = elem.parentNode,
-							name = ofType && elem.nodeName.toLowerCase(),
-							useCache = !xml && !ofType,
-							diff = false;
-
-						if ( parent ) {
-
-							// :(first|last|only)-(child|of-type)
-							if ( simple ) {
-								while ( dir ) {
-									node = elem;
-									while ( (node = node[ dir ]) ) {
-										if ( ofType ?
-											node.nodeName.toLowerCase() === name :
-											node.nodeType === 1 ) {
-
-											return false;
-										}
-									}
-									// Reverse direction for :only-* (if we haven't yet done so)
-									start = dir = type === "only" && !start && "nextSibling";
-								}
-								return true;
-							}
-
-							start = [ forward ? parent.firstChild : parent.lastChild ];
-
-							// non-xml :nth-child(...) stores cache data on `parent`
-							if ( forward && useCache ) {
-
-								// Seek `elem` from a previously-cached index
-
-								// ...in a gzip-friendly way
-								node = parent;
-								outerCache = node[ expando ] || (node[ expando ] = {});
-
-								// Support: IE <9 only
-								// Defend against cloned attroperties (jQuery gh-1709)
-								uniqueCache = outerCache[ node.uniqueID ] ||
-									(outerCache[ node.uniqueID ] = {});
-
-								cache = uniqueCache[ type ] || [];
-								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
-								diff = nodeIndex && cache[ 2 ];
-								node = nodeIndex && parent.childNodes[ nodeIndex ];
-
-								while ( (node = ++nodeIndex && node && node[ dir ] ||
-
-									// Fallback to seeking `elem` from the start
-									(diff = nodeIndex = 0) || start.pop()) ) {
-
-									// When found, cache indexes on `parent` and break
-									if ( node.nodeType === 1 && ++diff && node === elem ) {
-										uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
-										break;
-									}
-								}
-
-							} else {
-								// Use previously-cached element index if available
-								if ( useCache ) {
-									// ...in a gzip-friendly way
-									node = elem;
-									outerCache = node[ expando ] || (node[ expando ] = {});
-
-									// Support: IE <9 only
-									// Defend against cloned attroperties (jQuery gh-1709)
-									uniqueCache = outerCache[ node.uniqueID ] ||
-										(outerCache[ node.uniqueID ] = {});
-
-									cache = uniqueCache[ type ] || [];
-									nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
-									diff = nodeIndex;
-								}
-
-								// xml :nth-child(...)
-								// or :nth-last-child(...) or :nth(-last)?-of-type(...)
-								if ( diff === false ) {
-									// Use the same loop as above to seek `elem` from the start
-									while ( (node = ++nodeIndex && node && node[ dir ] ||
-										(diff = nodeIndex = 0) || start.pop()) ) {
-
-										if ( ( ofType ?
-											node.nodeName.toLowerCase() === name :
-											node.nodeType === 1 ) &&
-											++diff ) {
-
-											// Cache the index of each encountered element
-											if ( useCache ) {
-												outerCache = node[ expando ] || (node[ expando ] = {});
-
-												// Support: IE <9 only
-												// Defend against cloned attroperties (jQuery gh-1709)
-												uniqueCache = outerCache[ node.uniqueID ] ||
-													(outerCache[ node.uniqueID ] = {});
-
-												uniqueCache[ type ] = [ dirruns, diff ];
-											}
-
-											if ( node === elem ) {
-												break;
-											}
-										}
-									}
-								}
-							}
-
-							// Incorporate the offset, then check against cycle size
-							diff -= last;
-							return diff === first || ( diff % first === 0 && diff / first >= 0 );
-						}
-					};
-			},
-
-			"PSEUDO": function( pseudo, argument ) {
-				// pseudo-class names are case-insensitive
-				// http://www.w3.org/TR/selectors/#pseudo-classes
-				// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
-				// Remember that setFilters inherits from pseudos
-				var args,
-					fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
-						Sizzle.error( "unsupported pseudo: " + pseudo );
-
-				// The user may use createPseudo to indicate that
-				// arguments are needed to create the filter function
-				// just as Sizzle does
-				if ( fn[ expando ] ) {
-					return fn( argument );
-				}
-
-				// But maintain support for old signatures
-				if ( fn.length > 1 ) {
-					args = [ pseudo, pseudo, "", argument ];
-					return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
-						markFunction(function( seed, matches ) {
-							var idx,
-								matched = fn( seed, argument ),
-								i = matched.length;
-							while ( i-- ) {
-								idx = indexOf( seed, matched[i] );
-								seed[ idx ] = !( matches[ idx ] = matched[i] );
-							}
-						}) :
-						function( elem ) {
-							return fn( elem, 0, args );
-						};
-				}
-
-				return fn;
-			}
-		},
-
-		pseudos: {
-			// Potentially complex pseudos
-			"not": markFunction(function( selector ) {
-				// Trim the selector passed to compile
-				// to avoid treating leading and trailing
-				// spaces as combinators
-				var input = [],
-					results = [],
-					matcher = compile( selector.replace( rtrim, "$1" ) );
-
-				return matcher[ expando ] ?
-					markFunction(function( seed, matches, context, xml ) {
-						var elem,
-							unmatched = matcher( seed, null, xml, [] ),
-							i = seed.length;
-
-						// Match elements unmatched by `matcher`
-						while ( i-- ) {
-							if ( (elem = unmatched[i]) ) {
-								seed[i] = !(matches[i] = elem);
-							}
-						}
-					}) :
-					function( elem, context, xml ) {
-						input[0] = elem;
-						matcher( input, null, xml, results );
-						// Don't keep the element (issue #299)
-						input[0] = null;
-						return !results.pop();
-					};
-			}),
-
-			"has": markFunction(function( selector ) {
-				return function( elem ) {
-					return Sizzle( selector, elem ).length > 0;
-				};
-			}),
-
-			"contains": markFunction(function( text ) {
-				text = text.replace( runescape, funescape );
-				return function( elem ) {
-					return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
-				};
-			}),
-
-			// "Whether an element is represented by a :lang() selector
-			// is based solely on the element's language value
-			// being equal to the identifier C,
-			// or beginning with the identifier C immediately followed by "-".
-			// The matching of C against the element's language value is performed case-insensitively.
-			// The identifier C does not have to be a valid language name."
-			// http://www.w3.org/TR/selectors/#lang-pseudo
-			"lang": markFunction( function( lang ) {
-				// lang value must be a valid identifier
-				if ( !ridentifier.test(lang || "") ) {
-					Sizzle.error( "unsupported lang: " + lang );
-				}
-				lang = lang.replace( runescape, funescape ).toLowerCase();
-				return function( elem ) {
-					var elemLang;
-					do {
-						if ( (elemLang = documentIsHTML ?
-							elem.lang :
-							elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
-
-							elemLang = elemLang.toLowerCase();
-							return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
-						}
-					} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
-					return false;
-				};
-			}),
-
-			// Miscellaneous
-			"target": function( elem ) {
-				var hash = window.location && window.location.hash;
-				return hash && hash.slice( 1 ) === elem.id;
-			},
-
-			"root": function( elem ) {
-				return elem === docElem;
-			},
-
-			"focus": function( elem ) {
-				return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
-			},
-
-			// Boolean properties
-			"enabled": function( elem ) {
-				return elem.disabled === false;
-			},
-
-			"disabled": function( elem ) {
-				return elem.disabled === true;
-			},
-
-			"checked": function( elem ) {
-				// In CSS3, :checked should return both checked and selected elements
-				// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-				var nodeName = elem.nodeName.toLowerCase();
-				return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
-			},
-
-			"selected": function( elem ) {
-				// Accessing this property makes selected-by-default
-				// options in Safari work properly
-				if ( elem.parentNode ) {
-					elem.parentNode.selectedIndex;
-				}
-
-				return elem.selected === true;
-			},
-
-			// Contents
-			"empty": function( elem ) {
-				// http://www.w3.org/TR/selectors/#empty-pseudo
-				// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
-				//   but not by others (comment: 8; processing instruction: 7; etc.)
-				// nodeType < 6 works because attributes (2) do not appear as children
-				for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-					if ( elem.nodeType < 6 ) {
-						return false;
-					}
-				}
-				return true;
-			},
-
-			"parent": function( elem ) {
-				return !Expr.pseudos["empty"]( elem );
-			},
-
-			// Element/input types
-			"header": function( elem ) {
-				return rheader.test( elem.nodeName );
-			},
-
-			"input": function( elem ) {
-				return rinputs.test( elem.nodeName );
-			},
-
-			"button": function( elem ) {
-				var name = elem.nodeName.toLowerCase();
-				return name === "input" && elem.type === "button" || name === "button";
-			},
-
-			"text": function( elem ) {
-				var attr;
-				return elem.nodeName.toLowerCase() === "input" &&
-					elem.type === "text" &&
-
-					// Support: IE<8
-					// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
-					( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
-			},
-
-			// Position-in-collection
-			"first": createPositionalPseudo(function() {
-				return [ 0 ];
-			}),
-
-			"last": createPositionalPseudo(function( matchIndexes, length ) {
-				return [ length - 1 ];
-			}),
-
-			"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
-				return [ argument < 0 ? argument + length : argument ];
-			}),
-
-			"even": createPositionalPseudo(function( matchIndexes, length ) {
-				var i = 0;
-				for ( ; i < length; i += 2 ) {
-					matchIndexes.push( i );
-				}
-				return matchIndexes;
-			}),
-
-			"odd": createPositionalPseudo(function( matchIndexes, length ) {
-				var i = 1;
-				for ( ; i < length; i += 2 ) {
-					matchIndexes.push( i );
-				}
-				return matchIndexes;
-			}),
-
-			"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-				var i = argument < 0 ? argument + length : argument;
-				for ( ; --i >= 0; ) {
-					matchIndexes.push( i );
-				}
-				return matchIndexes;
-			}),
-
-			"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-				var i = argument < 0 ? argument + length : argument;
-				for ( ; ++i < length; ) {
-					matchIndexes.push( i );
-				}
-				return matchIndexes;
-			})
-		}
-	};
-
-	Expr.pseudos["nth"] = Expr.pseudos["eq"];
-
-	// Add button/input type pseudos
-	for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
-		Expr.pseudos[ i ] = createInputPseudo( i );
-	}
-	for ( i in { submit: true, reset: true } ) {
-		Expr.pseudos[ i ] = createButtonPseudo( i );
-	}
-
-	// Easy API for creating new setFilters
-	function setFilters() {}
-	setFilters.prototype = Expr.filters = Expr.pseudos;
-	Expr.setFilters = new setFilters();
-
-	tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
-		var matched, match, tokens, type,
-			soFar, groups, preFilters,
-			cached = tokenCache[ selector + " " ];
-
-		if ( cached ) {
-			return parseOnly ? 0 : cached.slice( 0 );
-		}
-
-		soFar = selector;
-		groups = [];
-		preFilters = Expr.preFilter;
-
-		while ( soFar ) {
-
-			// Comma and first run
-			if ( !matched || (match = rcomma.exec( soFar )) ) {
-				if ( match ) {
-					// Don't consume trailing commas as valid
-					soFar = soFar.slice( match[0].length ) || soFar;
-				}
-				groups.push( (tokens = []) );
-			}
-
-			matched = false;
-
-			// Combinators
-			if ( (match = rcombinators.exec( soFar )) ) {
-				matched = match.shift();
-				tokens.push({
-					value: matched,
-					// Cast descendant combinators to space
-					type: match[0].replace( rtrim, " " )
-				});
-				soFar = soFar.slice( matched.length );
-			}
-
-			// Filters
-			for ( type in Expr.filter ) {
-				if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
-					(match = preFilters[ type ]( match ))) ) {
-					matched = match.shift();
-					tokens.push({
-						value: matched,
-						type: type,
-						matches: match
-					});
-					soFar = soFar.slice( matched.length );
-				}
-			}
-
-			if ( !matched ) {
-				break;
-			}
-		}
-
-		// Return the length of the invalid excess
-		// if we're just parsing
-		// Otherwise, throw an error or return tokens
-		return parseOnly ?
-			soFar.length :
-			soFar ?
-				Sizzle.error( selector ) :
-				// Cache the tokens
-				tokenCache( selector, groups ).slice( 0 );
-	};
-
-	function toSelector( tokens ) {
-		var i = 0,
-			len = tokens.length,
-			selector = "";
-		for ( ; i < len; i++ ) {
-			selector += tokens[i].value;
-		}
-		return selector;
-	}
-
-	function addCombinator( matcher, combinator, base ) {
-		var dir = combinator.dir,
-			checkNonElements = base && dir === "parentNode",
-			doneName = done++;
-
-		return combinator.first ?
-			// Check against closest ancestor/preceding element
-			function( elem, context, xml ) {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						return matcher( elem, context, xml );
-					}
-				}
-			} :
-
-			// Check against all ancestor/preceding elements
-			function( elem, context, xml ) {
-				var oldCache, uniqueCache, outerCache,
-					newCache = [ dirruns, doneName ];
-
-				// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
-				if ( xml ) {
-					while ( (elem = elem[ dir ]) ) {
-						if ( elem.nodeType === 1 || checkNonElements ) {
-							if ( matcher( elem, context, xml ) ) {
-								return true;
-							}
-						}
-					}
-				} else {
-					while ( (elem = elem[ dir ]) ) {
-						if ( elem.nodeType === 1 || checkNonElements ) {
-							outerCache = elem[ expando ] || (elem[ expando ] = {});
-
-							// Support: IE <9 only
-							// Defend against cloned attroperties (jQuery gh-1709)
-							uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
-
-							if ( (oldCache = uniqueCache[ dir ]) &&
-								oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
-
-								// Assign to newCache so results back-propagate to previous elements
-								return (newCache[ 2 ] = oldCache[ 2 ]);
-							} else {
-								// Reuse newcache so results back-propagate to previous elements
-								uniqueCache[ dir ] = newCache;
-
-								// A match means we're done; a fail means we have to keep checking
-								if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
-									return true;
-								}
-							}
-						}
-					}
-				}
-			};
-	}
-
-	function elementMatcher( matchers ) {
-		return matchers.length > 1 ?
-			function( elem, context, xml ) {
-				var i = matchers.length;
-				while ( i-- ) {
-					if ( !matchers[i]( elem, context, xml ) ) {
-						return false;
-					}
-				}
-				return true;
-			} :
-			matchers[0];
-	}
-
-	function multipleContexts( selector, contexts, results ) {
-		var i = 0,
-			len = contexts.length;
-		for ( ; i < len; i++ ) {
-			Sizzle( selector, contexts[i], results );
-		}
-		return results;
-	}
-
-	function condense( unmatched, map, filter, context, xml ) {
-		var elem,
-			newUnmatched = [],
-			i = 0,
-			len = unmatched.length,
-			mapped = map != null;
-
-		for ( ; i < len; i++ ) {
-			if ( (elem = unmatched[i]) ) {
-				if ( !filter || filter( elem, context, xml ) ) {
-					newUnmatched.push( elem );
-					if ( mapped ) {
-						map.push( i );
-					}
-				}
-			}
-		}
-
-		return newUnmatched;
-	}
-
-	function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
-		if ( postFilter && !postFilter[ expando ] ) {
-			postFilter = setMatcher( postFilter );
-		}
-		if ( postFinder && !postFinder[ expando ] ) {
-			postFinder = setMatcher( postFinder, postSelector );
-		}
-		return markFunction(function( seed, results, context, xml ) {
-			var temp, i, elem,
-				preMap = [],
-				postMap = [],
-				preexisting = results.length,
-
-				// Get initial elements from seed or context
-				elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
-
-				// Prefilter to get matcher input, preserving a map for seed-results synchronization
-				matcherIn = preFilter && ( seed || !selector ) ?
-					condense( elems, preMap, preFilter, context, xml ) :
-					elems,
-
-				matcherOut = matcher ?
-					// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
-					postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
-
-						// ...intermediate processing is necessary
-						[] :
-
-						// ...otherwise use results directly
-						results :
-					matcherIn;
-
-			// Find primary matches
-			if ( matcher ) {
-				matcher( matcherIn, matcherOut, context, xml );
-			}
-
-			// Apply postFilter
-			if ( postFilter ) {
-				temp = condense( matcherOut, postMap );
-				postFilter( temp, [], context, xml );
-
-				// Un-match failing elements by moving them back to matcherIn
-				i = temp.length;
-				while ( i-- ) {
-					if ( (elem = temp[i]) ) {
-						matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
-					}
-				}
-			}
-
-			if ( seed ) {
-				if ( postFinder || preFilter ) {
-					if ( postFinder ) {
-						// Get the final matcherOut by condensing this intermediate into postFinder contexts
-						temp = [];
-						i = matcherOut.length;
-						while ( i-- ) {
-							if ( (elem = matcherOut[i]) ) {
-								// Restore matcherIn since elem is not yet a final match
-								temp.push( (matcherIn[i] = elem) );
-							}
-						}
-						postFinder( null, (matcherOut = []), temp, xml );
-					}
-
-					// Move matched elements from seed to results to keep them synchronized
-					i = matcherOut.length;
-					while ( i-- ) {
-						if ( (elem = matcherOut[i]) &&
-							(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
-
-							seed[temp] = !(results[temp] = elem);
-						}
-					}
-				}
-
-			// Add elements to results, through postFinder if defined
-			} else {
-				matcherOut = condense(
-					matcherOut === results ?
-						matcherOut.splice( preexisting, matcherOut.length ) :
-						matcherOut
-				);
-				if ( postFinder ) {
-					postFinder( null, results, matcherOut, xml );
-				} else {
-					push.apply( results, matcherOut );
-				}
-			}
-		});
-	}
-
-	function matcherFromTokens( tokens ) {
-		var checkContext, matcher, j,
-			len = tokens.length,
-			leadingRelative = Expr.relative[ tokens[0].type ],
-			implicitRelative = leadingRelative || Expr.relative[" "],
-			i = leadingRelative ? 1 : 0,
-
-			// The foundational matcher ensures that elements are reachable from top-level context(s)
-			matchContext = addCombinator( function( elem ) {
-				return elem === checkContext;
-			}, implicitRelative, true ),
-			matchAnyContext = addCombinator( function( elem ) {
-				return indexOf( checkContext, elem ) > -1;
-			}, implicitRelative, true ),
-			matchers = [ function( elem, context, xml ) {
-				var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
-					(checkContext = context).nodeType ?
-						matchContext( elem, context, xml ) :
-						matchAnyContext( elem, context, xml ) );
-				// Avoid hanging onto element (issue #299)
-				checkContext = null;
-				return ret;
-			} ];
-
-		for ( ; i < len; i++ ) {
-			if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
-				matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
-			} else {
-				matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
-
-				// Return special upon seeing a positional matcher
-				if ( matcher[ expando ] ) {
-					// Find the next relative operator (if any) for proper handling
-					j = ++i;
-					for ( ; j < len; j++ ) {
-						if ( Expr.relative[ tokens[j].type ] ) {
-							break;
-						}
-					}
-					return setMatcher(
-						i > 1 && elementMatcher( matchers ),
-						i > 1 && toSelector(
-							// If the preceding token was a descendant combinator, insert an implicit any-element `*`
-							tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
-						).replace( rtrim, "$1" ),
-						matcher,
-						i < j && matcherFromTokens( tokens.slice( i, j ) ),
-						j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
-						j < len && toSelector( tokens )
-					);
-				}
-				matchers.push( matcher );
-			}
-		}
-
-		return elementMatcher( matchers );
-	}
-
-	function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
-		var bySet = setMatchers.length > 0,
-			byElement = elementMatchers.length > 0,
-			superMatcher = function( seed, context, xml, results, outermost ) {
-				var elem, j, matcher,
-					matchedCount = 0,
-					i = "0",
-					unmatched = seed && [],
-					setMatched = [],
-					contextBackup = outermostContext,
-					// We must always have either seed elements or outermost context
-					elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
-					// Use integer dirruns iff this is the outermost matcher
-					dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
-					len = elems.length;
-
-				if ( outermost ) {
-					outermostContext = context === document || context || outermost;
-				}
-
-				// Add elements passing elementMatchers directly to results
-				// Support: IE<9, Safari
-				// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
-				for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
-					if ( byElement && elem ) {
-						j = 0;
-						if ( !context && elem.ownerDocument !== document ) {
-							setDocument( elem );
-							xml = !documentIsHTML;
-						}
-						while ( (matcher = elementMatchers[j++]) ) {
-							if ( matcher( elem, context || document, xml) ) {
-								results.push( elem );
-								break;
-							}
-						}
-						if ( outermost ) {
-							dirruns = dirrunsUnique;
-						}
-					}
-
-					// Track unmatched elements for set filters
-					if ( bySet ) {
-						// They will have gone through all possible matchers
-						if ( (elem = !matcher && elem) ) {
-							matchedCount--;
-						}
-
-						// Lengthen the array for every element, matched or not
-						if ( seed ) {
-							unmatched.push( elem );
-						}
-					}
-				}
-
-				// `i` is now the count of elements visited above, and adding it to `matchedCount`
-				// makes the latter nonnegative.
-				matchedCount += i;
-
-				// Apply set filters to unmatched elements
-				// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
-				// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
-				// no element matchers and no seed.
-				// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
-				// case, which will result in a "00" `matchedCount` that differs from `i` but is also
-				// numerically zero.
-				if ( bySet && i !== matchedCount ) {
-					j = 0;
-					while ( (matcher = setMatchers[j++]) ) {
-						matcher( unmatched, setMatched, context, xml );
-					}
-
-					if ( seed ) {
-						// Reintegrate element matches to eliminate the need for sorting
-						if ( matchedCount > 0 ) {
-							while ( i-- ) {
-								if ( !(unmatched[i] || setMatched[i]) ) {
-									setMatched[i] = pop.call( results );
-								}
-							}
-						}
-
-						// Discard index placeholder values to get only actual matches
-						setMatched = condense( setMatched );
-					}
-
-					// Add matches to results
-					push.apply( results, setMatched );
-
-					// Seedless set matches succeeding multiple successful matchers stipulate sorting
-					if ( outermost && !seed && setMatched.length > 0 &&
-						( matchedCount + setMatchers.length ) > 1 ) {
-
-						Sizzle.uniqueSort( results );
-					}
-				}
-
-				// Override manipulation of globals by nested matchers
-				if ( outermost ) {
-					dirruns = dirrunsUnique;
-					outermostContext = contextBackup;
-				}
-
-				return unmatched;
-			};
-
-		return bySet ?
-			markFunction( superMatcher ) :
-			superMatcher;
-	}
-
-	compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
-		var i,
-			setMatchers = [],
-			elementMatchers = [],
-			cached = compilerCache[ selector + " " ];
-
-		if ( !cached ) {
-			// Generate a function of recursive functions that can be used to check each element
-			if ( !match ) {
-				match = tokenize( selector );
-			}
-			i = match.length;
-			while ( i-- ) {
-				cached = matcherFromTokens( match[i] );
-				if ( cached[ expando ] ) {
-					setMatchers.push( cached );
-				} else {
-					elementMatchers.push( cached );
-				}
-			}
-
-			// Cache the compiled function
-			cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
-
-			// Save selector and tokenization
-			cached.selector = selector;
-		}
-		return cached;
-	};
-
-	/**
-	 * A low-level selection function that works with Sizzle's compiled
-	 *  selector functions
-	 * @param {String|Function} selector A selector or a pre-compiled
-	 *  selector function built with Sizzle.compile
-	 * @param {Element} context
-	 * @param {Array} [results]
-	 * @param {Array} [seed] A set of elements to match against
-	 */
-	select = Sizzle.select = function( selector, context, results, seed ) {
-		var i, tokens, token, type, find,
-			compiled = typeof selector === "function" && selector,
-			match = !seed && tokenize( (selector = compiled.selector || selector) );
-
-		results = results || [];
-
-		// Try to minimize operations if there is only one selector in the list and no seed
-		// (the latter of which guarantees us context)
-		if ( match.length === 1 ) {
-
-			// Reduce context if the leading compound selector is an ID
-			tokens = match[0] = match[0].slice( 0 );
-			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
-					support.getById && context.nodeType === 9 && documentIsHTML &&
-					Expr.relative[ tokens[1].type ] ) {
-
-				context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
-				if ( !context ) {
-					return results;
-
-				// Precompiled matchers will still verify ancestry, so step up a level
-				} else if ( compiled ) {
-					context = context.parentNode;
-				}
-
-				selector = selector.slice( tokens.shift().value.length );
-			}
-
-			// Fetch a seed set for right-to-left matching
-			i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
-			while ( i-- ) {
-				token = tokens[i];
-
-				// Abort if we hit a combinator
-				if ( Expr.relative[ (type = token.type) ] ) {
-					break;
-				}
-				if ( (find = Expr.find[ type ]) ) {
-					// Search, expanding context for leading sibling combinators
-					if ( (seed = find(
-						token.matches[0].replace( runescape, funescape ),
-						rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
-					)) ) {
-
-						// If seed is empty or no tokens remain, we can return early
-						tokens.splice( i, 1 );
-						selector = seed.length && toSelector( tokens );
-						if ( !selector ) {
-							push.apply( results, seed );
-							return results;
-						}
-
-						break;
-					}
-				}
-			}
-		}
-
-		// Compile and execute a filtering function if one is not provided
-		// Provide `match` to avoid retokenization if we modified the selector above
-		( compiled || compile( selector, match ) )(
-			seed,
-			context,
-			!documentIsHTML,
-			results,
-			!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
-		);
-		return results;
-	};
-
-	// One-time assignments
-
-	// Sort stability
-	support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
-
-	// Support: Chrome 14-35+
-	// Always assume duplicates if they aren't passed to the comparison function
-	support.detectDuplicates = !!hasDuplicate;
-
-	// Initialize against the default document
-	setDocument();
-
-	// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
-	// Detached nodes confoundingly follow *each other*
-	support.sortDetached = assert(function( div1 ) {
-		// Should return 1, but returns 4 (following)
-		return div1.compareDocumentPosition( document.createElement("div") ) & 1;
-	});
-
-	// Support: IE<8
-	// Prevent attribute/property "interpolation"
-	// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
-	if ( !assert(function( div ) {
-		div.innerHTML = "<a href='#'></a>";
-		return div.firstChild.getAttribute("href") === "#" ;
-	}) ) {
-		addHandle( "type|href|height|width", function( elem, name, isXML ) {
-			if ( !isXML ) {
-				return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
-			}
-		});
-	}
-
-	// Support: IE<9
-	// Use defaultValue in place of getAttribute("value")
-	if ( !support.attributes || !assert(function( div ) {
-		div.innerHTML = "<input/>";
-		div.firstChild.setAttribute( "value", "" );
-		return div.firstChild.getAttribute( "value" ) === "";
-	}) ) {
-		addHandle( "value", function( elem, name, isXML ) {
-			if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
-				return elem.defaultValue;
-			}
-		});
-	}
-
-	// Support: IE<9
-	// Use getAttributeNode to fetch booleans when getAttribute lies
-	if ( !assert(function( div ) {
-		return div.getAttribute("disabled") == null;
-	}) ) {
-		addHandle( booleans, function( elem, name, isXML ) {
-			var val;
-			if ( !isXML ) {
-				return elem[ name ] === true ? name.toLowerCase() :
-						(val = elem.getAttributeNode( name )) && val.specified ?
-						val.value :
-					null;
-			}
-		});
-	}
-
-	return Sizzle;
-
-	})( window );
-
-
-
-	jQuery.find = Sizzle;
-	jQuery.expr = Sizzle.selectors;
-	jQuery.expr[ ":" ] = jQuery.expr.pseudos;
-	jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
-	jQuery.text = Sizzle.getText;
-	jQuery.isXMLDoc = Sizzle.isXML;
-	jQuery.contains = Sizzle.contains;
-
-
-
-	var dir = function( elem, dir, until ) {
-		var matched = [],
-			truncate = until !== undefined;
-
-		while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
-			if ( elem.nodeType === 1 ) {
-				if ( truncate && jQuery( elem ).is( until ) ) {
-					break;
-				}
-				matched.push( elem );
-			}
-		}
-		return matched;
-	};
-
-
-	var siblings = function( n, elem ) {
-		var matched = [];
-
-		for ( ; n; n = n.nextSibling ) {
-			if ( n.nodeType === 1 && n !== elem ) {
-				matched.push( n );
-			}
-		}
-
-		return matched;
-	};
-
-
-	var rneedsContext = jQuery.expr.match.needsContext;
-
-	var rsingleTag = ( /^<([\w-]+)\s*\/?>(?:<\/\1>|)$/ );
-
-
-
-	var risSimple = /^.[^:#\[\.,]*$/;
-
-	// Implement the identical functionality for filter and not
-	function winnow( elements, qualifier, not ) {
-		if ( jQuery.isFunction( qualifier ) ) {
-			return jQuery.grep( elements, function( elem, i ) {
-				/* jshint -W018 */
-				return !!qualifier.call( elem, i, elem ) !== not;
-			} );
-
-		}
-
-		if ( qualifier.nodeType ) {
-			return jQuery.grep( elements, function( elem ) {
-				return ( elem === qualifier ) !== not;
-			} );
-
-		}
-
-		if ( typeof qualifier === "string" ) {
-			if ( risSimple.test( qualifier ) ) {
-				return jQuery.filter( qualifier, elements, not );
-			}
-
-			qualifier = jQuery.filter( qualifier, elements );
-		}
-
-		return jQuery.grep( elements, function( elem ) {
-			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
-		} );
-	}
-
-	jQuery.filter = function( expr, elems, not ) {
-		var elem = elems[ 0 ];
-
-		if ( not ) {
-			expr = ":not(" + expr + ")";
-		}
-
-		return elems.length === 1 && elem.nodeType === 1 ?
-			jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
-			jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
-				return elem.nodeType === 1;
-			} ) );
-	};
-
-	jQuery.fn.extend( {
-		find: function( selector ) {
-			var i,
-				len = this.length,
-				ret = [],
-				self = this;
-
-			if ( typeof selector !== "string" ) {
-				return this.pushStack( jQuery( selector ).filter( function() {
-					for ( i = 0; i < len; i++ ) {
-						if ( jQuery.contains( self[ i ], this ) ) {
-							return true;
-						}
-					}
-				} ) );
-			}
-
-			for ( i = 0; i < len; i++ ) {
-				jQuery.find( selector, self[ i ], ret );
-			}
-
-			// Needed because $( selector, context ) becomes $( context ).find( selector )
-			ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
-			ret.selector = this.selector ? this.selector + " " + selector : selector;
-			return ret;
-		},
-		filter: function( selector ) {
-			return this.pushStack( winnow( this, selector || [], false ) );
-		},
-		not: function( selector ) {
-			return this.pushStack( winnow( this, selector || [], true ) );
-		},
-		is: function( selector ) {
-			return !!winnow(
-				this,
-
-				// If this is a positional/relative selector, check membership in the returned set
-				// so $("p:first").is("p:last") won't return true for a doc with two "p".
-				typeof selector === "string" && rneedsContext.test( selector ) ?
-					jQuery( selector ) :
-					selector || [],
-				false
-			).length;
-		}
-	} );
-
-
-	// Initialize a jQuery object
-
-
-	// A central reference to the root jQuery(document)
-	var rootjQuery,
-
-		// A simple way to check for HTML strings
-		// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-		// Strict HTML recognition (#11290: must start with <)
-		rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
-
-		init = jQuery.fn.init = function( selector, context, root ) {
-			var match, elem;
-
-			// HANDLE: $(""), $(null), $(undefined), $(false)
-			if ( !selector ) {
-				return this;
-			}
-
-			// Method init() accepts an alternate rootjQuery
-			// so migrate can support jQuery.sub (gh-2101)
-			root = root || rootjQuery;
-
-			// Handle HTML strings
-			if ( typeof selector === "string" ) {
-				if ( selector[ 0 ] === "<" &&
-					selector[ selector.length - 1 ] === ">" &&
-					selector.length >= 3 ) {
-
-					// Assume that strings that start and end with <> are HTML and skip the regex check
-					match = [ null, selector, null ];
-
-				} else {
-					match = rquickExpr.exec( selector );
-				}
-
-				// Match html or make sure no context is specified for #id
-				if ( match && ( match[ 1 ] || !context ) ) {
-
-					// HANDLE: $(html) -> $(array)
-					if ( match[ 1 ] ) {
-						context = context instanceof jQuery ? context[ 0 ] : context;
-
-						// Option to run scripts is true for back-compat
-						// Intentionally let the error be thrown if parseHTML is not present
-						jQuery.merge( this, jQuery.parseHTML(
-							match[ 1 ],
-							context && context.nodeType ? context.ownerDocument || context : document,
-							true
-						) );
-
-						// HANDLE: $(html, props)
-						if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
-							for ( match in context ) {
-
-								// Properties of context are called as methods if possible
-								if ( jQuery.isFunction( this[ match ] ) ) {
-									this[ match ]( context[ match ] );
-
-								// ...and otherwise set as attributes
-								} else {
-									this.attr( match, context[ match ] );
-								}
-							}
-						}
-
-						return this;
-
-					// HANDLE: $(#id)
-					} else {
-						elem = document.getElementById( match[ 2 ] );
-
-						// Support: Blackberry 4.6
-						// gEBID returns nodes no longer in the document (#6963)
-						if ( elem && elem.parentNode ) {
-
-							// Inject the element directly into the jQuery object
-							this.length = 1;
-							this[ 0 ] = elem;
-						}
-
-						this.context = document;
-						this.selector = selector;
-						return this;
-					}
-
-				// HANDLE: $(expr, $(...))
-				} else if ( !context || context.jquery ) {
-					return ( context || root ).find( selector );
-
-				// HANDLE: $(expr, context)
-				// (which is just equivalent to: $(context).find(expr)
-				} else {
-					return this.constructor( context ).find( selector );
-				}
-
-			// HANDLE: $(DOMElement)
-			} else if ( selector.nodeType ) {
-				this.context = this[ 0 ] = selector;
-				this.length = 1;
-				return this;
-
-			// HANDLE: $(function)
-			// Shortcut for document ready
-			} else if ( jQuery.isFunction( selector ) ) {
-				return root.ready !== undefined ?
-					root.ready( selector ) :
-
-					// Execute immediately if ready is not present
-					selector( jQuery );
-			}
-
-			if ( selector.selector !== undefined ) {
-				this.selector = selector.selector;
-				this.context = selector.context;
-			}
-
-			return jQuery.makeArray( selector, this );
-		};
-
-	// Give the init function the jQuery prototype for later instantiation
-	init.prototype = jQuery.fn;
-
-	// Initialize central reference
-	rootjQuery = jQuery( document );
-
-
-	var rparentsprev = /^(?:parents|prev(?:Until|All))/,
-
-		// Methods guaranteed to produce a unique set when starting from a unique set
-		guaranteedUnique = {
-			children: true,
-			contents: true,
-			next: true,
-			prev: true
-		};
-
-	jQuery.fn.extend( {
-		has: function( target ) {
-			var targets = jQuery( target, this ),
-				l = targets.length;
-
-			return this.filter( function() {
-				var i = 0;
-				for ( ; i < l; i++ ) {
-					if ( jQuery.contains( this, targets[ i ] ) ) {
-						return true;
-					}
-				}
-			} );
-		},
-
-		closest: function( selectors, context ) {
-			var cur,
-				i = 0,
-				l = this.length,
-				matched = [],
-				pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
-					jQuery( selectors, context || this.context ) :
-					0;
-
-			for ( ; i < l; i++ ) {
-				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
-
-					// Always skip document fragments
-					if ( cur.nodeType < 11 && ( pos ?
-						pos.index( cur ) > -1 :
-
-						// Don't pass non-elements to Sizzle
-						cur.nodeType === 1 &&
-							jQuery.find.matchesSelector( cur, selectors ) ) ) {
-
-						matched.push( cur );
-						break;
-					}
-				}
-			}
-
-			return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
-		},
-
-		// Determine the position of an element within the set
-		index: function( elem ) {
-
-			// No argument, return index in parent
-			if ( !elem ) {
-				return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
-			}
-
-			// Index in selector
-			if ( typeof elem === "string" ) {
-				return indexOf.call( jQuery( elem ), this[ 0 ] );
-			}
-
-			// Locate the position of the desired element
-			return indexOf.call( this,
-
-				// If it receives a jQuery object, the first element is used
-				elem.jquery ? elem[ 0 ] : elem
-			);
-		},
-
-		add: function( selector, context ) {
-			return this.pushStack(
-				jQuery.uniqueSort(
-					jQuery.merge( this.get(), jQuery( selector, context ) )
-				)
-			);
-		},
-
-		addBack: function( selector ) {
-			return this.add( selector == null ?
-				this.prevObject : this.prevObject.filter( selector )
-			);
-		}
-	} );
-
-	function sibling( cur, dir ) {
-		while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
-		return cur;
-	}
-
-	jQuery.each( {
-		parent: function( elem ) {
-			var parent = elem.parentNode;
-			return parent && parent.nodeType !== 11 ? parent : null;
-		},
-		parents: function( elem ) {
-			return dir( elem, "parentNode" );
-		},
-		parentsUntil: function( elem, i, until ) {
-			return dir( elem, "parentNode", until );
-		},
-		next: function( elem ) {
-			return sibling( elem, "nextSibling" );
-		},
-		prev: function( elem ) {
-			return sibling( elem, "previousSibling" );
-		},
-		nextAll: function( elem ) {
-			return dir( elem, "nextSibling" );
-		},
-		prevAll: function( elem ) {
-			return dir( elem, "previousSibling" );
-		},
-		nextUntil: function( elem, i, until ) {
-			return dir( elem, "nextSibling", until );
-		},
-		prevUntil: function( elem, i, until ) {
-			return dir( elem, "previousSibling", until );
-		},
-		siblings: function( elem ) {
-			return siblings( ( elem.parentNode || {} ).firstChild, elem );
-		},
-		children: function( elem ) {
-			return siblings( elem.firstChild );
-		},
-		contents: function( elem ) {
-			return elem.contentDocument || jQuery.merge( [], elem.childNodes );
-		}
-	}, function( name, fn ) {
-		jQuery.fn[ name ] = function( until, selector ) {
-			var matched = jQuery.map( this, fn, until );
-
-			if ( name.slice( -5 ) !== "Until" ) {
-				selector = until;
-			}
-
-			if ( selector && typeof selector === "string" ) {
-				matched = jQuery.filter( selector, matched );
-			}
-
-			if ( this.length > 1 ) {
-
-				// Remove duplicates
-				if ( !guaranteedUnique[ name ] ) {
-					jQuery.uniqueSort( matched );
-				}
-
-				// Reverse order for parents* and prev-derivatives
-				if ( rparentsprev.test( name ) ) {
-					matched.reverse();
-				}
-			}
-
-			return this.pushStack( matched );
-		};
-	} );
-	var rnotwhite = ( /\S+/g );
-
-
-
-	// Convert String-formatted options into Object-formatted ones
-	function createOptions( options ) {
-		var object = {};
-		jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
-			object[ flag ] = true;
-		} );
-		return object;
-	}
-
-	/*
-	 * Create a callback list using the following parameters:
-	 *
-	 *	options: an optional list of space-separated options that will change how
-	 *			the callback list behaves or a more traditional option object
-	 *
-	 * By default a callback list will act like an event callback list and can be
-	 * "fired" multiple times.
-	 *
-	 * Possible options:
-	 *
-	 *	once:			will ensure the callback list can only be fired once (like a Deferred)
-	 *
-	 *	memory:			will keep track of previous values and will call any callback added
-	 *					after the list has been fired right away with the latest "memorized"
-	 *					values (like a Deferred)
-	 *
-	 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
-	 *
-	 *	stopOnFalse:	interrupt callings when a callback returns false
-	 *
-	 */
-	jQuery.Callbacks = function( options ) {
-
-		// Convert options from String-formatted to Object-formatted if needed
-		// (we check in cache first)
-		options = typeof options === "string" ?
-			createOptions( options ) :
-			jQuery.extend( {}, options );
-
-		var // Flag to know if list is currently firing
-			firing,
-
-			// Last fire value for non-forgettable lists
-			memory,
-
-			// Flag to know if list was already fired
-			fired,
-
-			// Flag to prevent firing
-			locked,
-
-			// Actual callback list
-			list = [],
-
-			// Queue of execution data for repeatable lists
-			queue = [],
-
-			// Index of currently firing callback (modified by add/remove as needed)
-			firingIndex = -1,
-
-			// Fire callbacks
-			fire = function() {
-
-				// Enforce single-firing
-				locked = options.once;
-
-				// Execute callbacks for all pending executions,
-				// respecting firingIndex overrides and runtime changes
-				fired = firing = true;
-				for ( ; queue.length; firingIndex = -1 ) {
-					memory = queue.shift();
-					while ( ++firingIndex < list.length ) {
-
-						// Run callback and check for early termination
-						if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
-							options.stopOnFalse ) {
-
-							// Jump to end and forget the data so .add doesn't re-fire
-							firingIndex = list.length;
-							memory = false;
-						}
-					}
-				}
-
-				// Forget the data if we're done with it
-				if ( !options.memory ) {
-					memory = false;
-				}
-
-				firing = false;
-
-				// Clean up if we're done firing for good
-				if ( locked ) {
-
-					// Keep an empty list if we have data for future add calls
-					if ( memory ) {
-						list = [];
-
-					// Otherwise, this object is spent
-					} else {
-						list = "";
-					}
-				}
-			},
-
-			// Actual Callbacks object
-			self = {
-
-				// Add a callback or a collection of callbacks to the list
-				add: function() {
-					if ( list ) {
-
-						// If we have memory from a past run, we should fire after adding
-						if ( memory && !firing ) {
-							firingIndex = list.length - 1;
-							queue.push( memory );
-						}
-
-						( function add( args ) {
-							jQuery.each( args, function( _, arg ) {
-								if ( jQuery.isFunction( arg ) ) {
-									if ( !options.unique || !self.has( arg ) ) {
-										list.push( arg );
-									}
-								} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {
-
-									// Inspect recursively
-									add( arg );
-								}
-							} );
-						} )( arguments );
-
-						if ( memory && !firing ) {
-							fire();
-						}
-					}
-					return this;
-				},
-
-				// Remove a callback from the list
-				remove: function() {
-					jQuery.each( arguments, function( _, arg ) {
-						var index;
-						while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
-							list.splice( index, 1 );
-
-							// Handle firing indexes
-							if ( index <= firingIndex ) {
-								firingIndex--;
-							}
-						}
-					} );
-					return this;
-				},
-
-				// Check if a given callback is in the list.
-				// If no argument is given, return whether or not list has callbacks attached.
-				has: function( fn ) {
-					return fn ?
-						jQuery.inArray( fn, list ) > -1 :
-						list.length > 0;
-				},
-
-				// Remove all callbacks from the list
-				empty: function() {
-					if ( list ) {
-						list = [];
-					}
-					return this;
-				},
-
-				// Disable .fire and .add
-				// Abort any current/pending executions
-				// Clear all callbacks and values
-				disable: function() {
-					locked = queue = [];
-					list = memory = "";
-					return this;
-				},
-				disabled: function() {
-					return !list;
-				},
-
-				// Disable .fire
-				// Also disable .add unless we have memory (since it would have no effect)
-				// Abort any pending executions
-				lock: function() {
-					locked = queue = [];
-					if ( !memory ) {
-						list = memory = "";
-					}
-					return this;
-				},
-				locked: function() {
-					return !!locked;
-				},
-
-				// Call all callbacks with the given context and arguments
-				fireWith: function( context, args ) {
-					if ( !locked ) {
-						args = args || [];
-						args = [ context, args.slice ? args.slice() : args ];
-						queue.push( args );
-						if ( !firing ) {
-							fire();
-						}
-					}
-					return this;
-				},
-
-				// Call all the callbacks with the given arguments
-				fire: function() {
-					self.fireWith( this, arguments );
-					return this;
-				},
-
-				// To know if the callbacks have already been called at least once
-				fired: function() {
-					return !!fired;
-				}
-			};
-
-		return self;
-	};
-
-
-	jQuery.extend( {
-
-		Deferred: function( func ) {
-			var tuples = [
-
-					// action, add listener, listener list, final state
-					[ "resolve", "done", jQuery.Callbacks( "once memory" ), "resolved" ],
-					[ "reject", "fail", jQuery.Callbacks( "once memory" ), "rejected" ],
-					[ "notify", "progress", jQuery.Callbacks( "memory" ) ]
-				],
-				state = "pending",
-				promise = {
-					state: function() {
-						return state;
-					},
-					always: function() {
-						deferred.done( arguments ).fail( arguments );
-						return this;
-					},
-					then: function( /* fnDone, fnFail, fnProgress */ ) {
-						var fns = arguments;
-						return jQuery.Deferred( function( newDefer ) {
-							jQuery.each( tuples, function( i, tuple ) {
-								var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
-
-								// deferred[ done | fail | progress ] for forwarding actions to newDefer
-								deferred[ tuple[ 1 ] ]( function() {
-									var returned = fn && fn.apply( this, arguments );
-									if ( returned && jQuery.isFunction( returned.promise ) ) {
-										returned.promise()
-											.progress( newDefer.notify )
-											.done( newDefer.resolve )
-											.fail( newDefer.reject );
-									} else {
-										newDefer[ tuple[ 0 ] + "With" ](
-											this === promise ? newDefer.promise() : this,
-											fn ? [ returned ] : arguments
-										);
-									}
-								} );
-							} );
-							fns = null;
-						} ).promise();
-					},
-
-					// Get a promise for this deferred
-					// If obj is provided, the promise aspect is added to the object
-					promise: function( obj ) {
-						return obj != null ? jQuery.extend( obj, promise ) : promise;
-					}
-				},
-				deferred = {};
-
-			// Keep pipe for back-compat
-			promise.pipe = promise.then;
-
-			// Add list-specific methods
-			jQuery.each( tuples, function( i, tuple ) {
-				var list = tuple[ 2 ],
-					stateString = tuple[ 3 ];
-
-				// promise[ done | fail | progress ] = list.add
-				promise[ tuple[ 1 ] ] = list.add;
-
-				// Handle state
-				if ( stateString ) {
-					list.add( function() {
-
-						// state = [ resolved | rejected ]
-						state = stateString;
-
-					// [ reject_list | resolve_list ].disable; progress_list.lock
-					}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
-				}
-
-				// deferred[ resolve | reject | notify ]
-				deferred[ tuple[ 0 ] ] = function() {
-					deferred[ tuple[ 0 ] + "With" ]( this === deferred ? promise : this, arguments );
-					return this;
-				};
-				deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
-			} );
-
-			// Make the deferred a promise
-			promise.promise( deferred );
-
-			// Call given func if any
-			if ( func ) {
-				func.call( deferred, deferred );
-			}
-
-			// All done!
-			return deferred;
-		},
-
-		// Deferred helper
-		when: function( subordinate /* , ..., subordinateN */ ) {
-			var i = 0,
-				resolveValues = slice.call( arguments ),
-				length = resolveValues.length,
-
-				// the count of uncompleted subordinates
-				remaining = length !== 1 ||
-					( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
-
-				// the master Deferred.
-				// If resolveValues consist of only a single Deferred, just use that.
-				deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
-
-				// Update function for both resolve and progress values
-				updateFunc = function( i, contexts, values ) {
-					return function( value ) {
-						contexts[ i ] = this;
-						values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
-						if ( values === progressValues ) {
-							deferred.notifyWith( contexts, values );
-						} else if ( !( --remaining ) ) {
-							deferred.resolveWith( contexts, values );
-						}
-					};
-				},
-
-				progressValues, progressContexts, resolveContexts;
-
-			// Add listeners to Deferred subordinates; treat others as resolved
-			if ( length > 1 ) {
-				progressValues = new Array( length );
-				progressContexts = new Array( length );
-				resolveContexts = new Array( length );
-				for ( ; i < length; i++ ) {
-					if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
-						resolveValues[ i ].promise()
-							.progress( updateFunc( i, progressContexts, progressValues ) )
-							.done( updateFunc( i, resolveContexts, resolveValues ) )
-							.fail( deferred.reject );
-					} else {
-						--remaining;
-					}
-				}
-			}
-
-			// If we're not waiting on anything, resolve the master
-			if ( !remaining ) {
-				deferred.resolveWith( resolveContexts, resolveValues );
-			}
-
-			return deferred.promise();
-		}
-	} );
-
-
-	// The deferred used on DOM ready
-	var readyList;
-
-	jQuery.fn.ready = function( fn ) {
-
-		// Add the callback
-		jQuery.ready.promise().done( fn );
-
-		return this;
-	};
-
-	jQuery.extend( {
-
-		// Is the DOM ready to be used? Set to true once it occurs.
-		isReady: false,
-
-		// A counter to track how many items to wait for before
-		// the ready event fires. See #6781
-		readyWait: 1,
-
-		// Hold (or release) the ready event
-		holdReady: function( hold ) {
-			if ( hold ) {
-				jQuery.readyWait++;
-			} else {
-				jQuery.ready( true );
-			}
-		},
-
-		// Handle when the DOM is ready
-		ready: function( wait ) {
-
-			// Abort if there are pending holds or we're already ready
-			if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
-				return;
-			}
-
-			// Remember that the DOM is ready
-			jQuery.isReady = true;
-
-			// If a normal DOM Ready event fired, decrement, and wait if need be
-			if ( wait !== true && --jQuery.readyWait > 0 ) {
-				return;
-			}
-
-			// If there are functions bound, to execute
-			readyList.resolveWith( document, [ jQuery ] );
-
-			// Trigger any bound ready events
-			if ( jQuery.fn.triggerHandler ) {
-				jQuery( document ).triggerHandler( "ready" );
-				jQuery( document ).off( "ready" );
-			}
-		}
-	} );
-
-	/**
-	 * The ready event handler and self cleanup method
-	 */
-	function completed() {
-		document.removeEventListener( "DOMContentLoaded", completed );
-		window.removeEventListener( "load", completed );
-		jQuery.ready();
-	}
-
-	jQuery.ready.promise = function( obj ) {
-		if ( !readyList ) {
-
-			readyList = jQuery.Deferred();
-
-			// Catch cases where $(document).ready() is called
-			// after the browser event has already occurred.
-			// Support: IE9-10 only
-			// Older IE sometimes signals "interactive" too soon
-			if ( document.readyState === "complete" ||
-				( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
-
-				// Handle it asynchronously to allow scripts the opportunity to delay ready
-				window.setTimeout( jQuery.ready );
-
-			} else {
-
-				// Use the handy event callback
-				document.addEventListener( "DOMContentLoaded", completed );
-
-				// A fallback to window.onload, that will always work
-				window.addEventListener( "load", completed );
-			}
-		}
-		return readyList.promise( obj );
-	};
-
-	// Kick off the DOM ready check even if the user does not
-	jQuery.ready.promise();
-
-
-
-
-	// Multifunctional method to get and set values of a collection
-	// The value/s can optionally be executed if it's a function
-	var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
-		var i = 0,
-			len = elems.length,
-			bulk = key == null;
-
-		// Sets many values
-		if ( jQuery.type( key ) === "object" ) {
-			chainable = true;
-			for ( i in key ) {
-				access( elems, fn, i, key[ i ], true, emptyGet, raw );
-			}
-
-		// Sets one value
-		} else if ( value !== undefined ) {
-			chainable = true;
-
-			if ( !jQuery.isFunction( value ) ) {
-				raw = true;
-			}
-
-			if ( bulk ) {
-
-				// Bulk operations run against the entire set
-				if ( raw ) {
-					fn.call( elems, value );
-					fn = null;
-
-				// ...except when executing function values
-				} else {
-					bulk = fn;
-					fn = function( elem, key, value ) {
-						return bulk.call( jQuery( elem ), value );
-					};
-				}
-			}
-
-			if ( fn ) {
-				for ( ; i < len; i++ ) {
-					fn(
-						elems[ i ], key, raw ?
-						value :
-						value.call( elems[ i ], i, fn( elems[ i ], key ) )
-					);
-				}
-			}
-		}
-
-		return chainable ?
-			elems :
-
-			// Gets
-			bulk ?
-				fn.call( elems ) :
-				len ? fn( elems[ 0 ], key ) : emptyGet;
-	};
-	var acceptData = function( owner ) {
-
-		// Accepts only:
-		//  - Node
-		//    - Node.ELEMENT_NODE
-		//    - Node.DOCUMENT_NODE
-		//  - Object
-		//    - Any
-		/* jshint -W018 */
-		return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
-	};
-
-
-
-
-	function Data() {
-		this.expando = jQuery.expando + Data.uid++;
-	}
-
-	Data.uid = 1;
-
-	Data.prototype = {
-
-		register: function( owner, initial ) {
-			var value = initial || {};
-
-			// If it is a node unlikely to be stringify-ed or looped over
-			// use plain assignment
-			if ( owner.nodeType ) {
-				owner[ this.expando ] = value;
-
-			// Otherwise secure it in a non-enumerable, non-writable property
-			// configurability must be true to allow the property to be
-			// deleted with the delete operator
-			} else {
-				Object.defineProperty( owner, this.expando, {
-					value: value,
-					writable: true,
-					configurable: true
-				} );
-			}
-			return owner[ this.expando ];
-		},
-		cache: function( owner ) {
-
-			// We can accept data for non-element nodes in modern browsers,
-			// but we should not, see #8335.
-			// Always return an empty object.
-			if ( !acceptData( owner ) ) {
-				return {};
-			}
-
-			// Check if the owner object already has a cache
-			var value = owner[ this.expando ];
-
-			// If not, create one
-			if ( !value ) {
-				value = {};
-
-				// We can accept data for non-element nodes in modern browsers,
-				// but we should not, see #8335.
-				// Always return an empty object.
-				if ( acceptData( owner ) ) {
-
-					// If it is a node unlikely to be stringify-ed or looped over
-					// use plain assignment
-					if ( owner.nodeType ) {
-						owner[ this.expando ] = value;
-
-					// Otherwise secure it in a non-enumerable property
-					// configurable must be true to allow the property to be
-					// deleted when data is removed
-					} else {
-						Object.defineProperty( owner, this.expando, {
-							value: value,
-							configurable: true
-						} );
-					}
-				}
-			}
-
-			return value;
-		},
-		set: function( owner, data, value ) {
-			var prop,
-				cache = this.cache( owner );
-
-			// Handle: [ owner, key, value ] args
-			if ( typeof data === "string" ) {
-				cache[ data ] = value;
-
-			// Handle: [ owner, { properties } ] args
-			} else {
-
-				// Copy the properties one-by-one to the cache object
-				for ( prop in data ) {
-					cache[ prop ] = data[ prop ];
-				}
-			}
-			return cache;
-		},
-		get: function( owner, key ) {
-			return key === undefined ?
-				this.cache( owner ) :
-				owner[ this.expando ] && owner[ this.expando ][ key ];
-		},
-		access: function( owner, key, value ) {
-			var stored;
-
-			// In cases where either:
-			//
-			//   1. No key was specified
-			//   2. A string key was specified, but no value provided
-			//
-			// Take the "read" path and allow the get method to determine
-			// which value to return, respectively either:
-			//
-			//   1. The entire cache object
-			//   2. The data stored at the key
-			//
-			if ( key === undefined ||
-					( ( key && typeof key === "string" ) && value === undefined ) ) {
-
-				stored = this.get( owner, key );
-
-				return stored !== undefined ?
-					stored : this.get( owner, jQuery.camelCase( key ) );
-			}
-
-			// When the key is not a string, or both a key and value
-			// are specified, set or extend (existing objects) with either:
-			//
-			//   1. An object of properties
-			//   2. A key and value
-			//
-			this.set( owner, key, value );
-
-			// Since the "set" path can have two possible entry points
-			// return the expected data based on which path was taken[*]
-			return value !== undefined ? value : key;
-		},
-		remove: function( owner, key ) {
-			var i, name, camel,
-				cache = owner[ this.expando ];
-
-			if ( cache === undefined ) {
-				return;
-			}
-
-			if ( key === undefined ) {
-				this.register( owner );
-
-			} else {
-
-				// Support array or space separated string of keys
-				if ( jQuery.isArray( key ) ) {
-
-					// If "name" is an array of keys...
-					// When data is initially created, via ("key", "val") signature,
-					// keys will be converted to camelCase.
-					// Since there is no way to tell _how_ a key was added, remove
-					// both plain key and camelCase key. #12786
-					// This will only penalize the array argument path.
-					name = key.concat( key.map( jQuery.camelCase ) );
-				} else {
-					camel = jQuery.camelCase( key );
-
-					// Try the string as a key before any manipulation
-					if ( key in cache ) {
-						name = [ key, camel ];
-					} else {
-
-						// If a key with the spaces exists, use it.
-						// Otherwise, create an array by matching non-whitespace
-						name = camel;
-						name = name in cache ?
-							[ name ] : ( name.match( rnotwhite ) || [] );
-					}
-				}
-
-				i = name.length;
-
-				while ( i-- ) {
-					delete cache[ name[ i ] ];
-				}
-			}
-
-			// Remove the expando if there's no more data
-			if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
-
-				// Support: Chrome <= 35-45+
-				// Webkit & Blink performance suffers when deleting properties
-				// from DOM nodes, so set to undefined instead
-				// https://code.google.com/p/chromium/issues/detail?id=378607
-				if ( owner.nodeType ) {
-					owner[ this.expando ] = undefined;
-				} else {
-					delete owner[ this.expando ];
-				}
-			}
-		},
-		hasData: function( owner ) {
-			var cache = owner[ this.expando ];
-			return cache !== undefined && !jQuery.isEmptyObject( cache );
-		}
-	};
-	var dataPriv = new Data();
-
-	var dataUser = new Data();
-
-
-
-	//	Implementation Summary
-	//
-	//	1. Enforce API surface and semantic compatibility with 1.9.x branch
-	//	2. Improve the module's maintainability by reducing the storage
-	//		paths to a single mechanism.
-	//	3. Use the same single mechanism to support "private" and "user" data.
-	//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
-	//	5. Avoid exposing implementation details on user objects (eg. expando properties)
-	//	6. Provide a clear path for implementation upgrade to WeakMap in 2014
-
-	var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
-		rmultiDash = /[A-Z]/g;
-
-	function dataAttr( elem, key, data ) {
-		var name;
-
-		// If nothing was found internally, try to fetch any
-		// data from the HTML5 data-* attribute
-		if ( data === undefined && elem.nodeType === 1 ) {
-			name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
-			data = elem.getAttribute( name );
-
-			if ( typeof data === "string" ) {
-				try {
-					data = data === "true" ? true :
-						data === "false" ? false :
-						data === "null" ? null :
-
-						// Only convert to a number if it doesn't change the string
-						+data + "" === data ? +data :
-						rbrace.test( data ) ? jQuery.parseJSON( data ) :
-						data;
-				} catch ( e ) {}
-
-				// Make sure we set the data so it isn't changed later
-				dataUser.set( elem, key, data );
-			} else {
-				data = undefined;
-			}
-		}
-		return data;
-	}
-
-	jQuery.extend( {
-		hasData: function( elem ) {
-			return dataUser.hasData( elem ) || dataPriv.hasData( elem );
-		},
-
-		data: function( elem, name, data ) {
-			return dataUser.access( elem, name, data );
-		},
-
-		removeData: function( elem, name ) {
-			dataUser.remove( elem, name );
-		},
-
-		// TODO: Now that all calls to _data and _removeData have been replaced
-		// with direct calls to dataPriv methods, these can be deprecated.
-		_data: function( elem, name, data ) {
-			return dataPriv.access( elem, name, data );
-		},
-
-		_removeData: function( elem, name ) {
-			dataPriv.remove( elem, name );
-		}
-	} );
-
-	jQuery.fn.extend( {
-		data: function( key, value ) {
-			var i, name, data,
-				elem = this[ 0 ],
-				attrs = elem && elem.attributes;
-
-			// Gets all values
-			if ( key === undefined ) {
-				if ( this.length ) {
-					data = dataUser.get( elem );
-
-					if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
-						i = attrs.length;
-						while ( i-- ) {
-
-							// Support: IE11+
-							// The attrs elements can be null (#14894)
-							if ( attrs[ i ] ) {
-								name = attrs[ i ].name;
-								if ( name.indexOf( "data-" ) === 0 ) {
-									name = jQuery.camelCase( name.slice( 5 ) );
-									dataAttr( elem, name, data[ name ] );
-								}
-							}
-						}
-						dataPriv.set( elem, "hasDataAttrs", true );
-					}
-				}
-
-				return data;
-			}
-
-			// Sets multiple values
-			if ( typeof key === "object" ) {
-				return this.each( function() {
-					dataUser.set( this, key );
-				} );
-			}
-
-			return access( this, function( value ) {
-				var data, camelKey;
-
-				// The calling jQuery object (element matches) is not empty
-				// (and therefore has an element appears at this[ 0 ]) and the
-				// `value` parameter was not undefined. An empty jQuery object
-				// will result in `undefined` for elem = this[ 0 ] which will
-				// throw an exception if an attempt to read a data cache is made.
-				if ( elem && value === undefined ) {
-
-					// Attempt to get data from the cache
-					// with the key as-is
-					data = dataUser.get( elem, key ) ||
-
-						// Try to find dashed key if it exists (gh-2779)
-						// This is for 2.2.x only
-						dataUser.get( elem, key.replace( rmultiDash, "-$&" ).toLowerCase() );
-
-					if ( data !== undefined ) {
-						return data;
-					}
-
-					camelKey = jQuery.camelCase( key );
-
-					// Attempt to get data from the cache
-					// with the key camelized
-					data = dataUser.get( elem, camelKey );
-					if ( data !== undefined ) {
-						return data;
-					}
-
-					// Attempt to "discover" the data in
-					// HTML5 custom data-* attrs
-					data = dataAttr( elem, camelKey, undefined );
-					if ( data !== undefined ) {
-						return data;
-					}
-
-					// We tried really hard, but the data doesn't exist.
-					return;
-				}
-
-				// Set the data...
-				camelKey = jQuery.camelCase( key );
-				this.each( function() {
-
-					// First, attempt to store a copy or reference of any
-					// data that might've been store with a camelCased key.
-					var data = dataUser.get( this, camelKey );
-
-					// For HTML5 data-* attribute interop, we have to
-					// store property names with dashes in a camelCase form.
-					// This might not apply to all properties...*
-					dataUser.set( this, camelKey, value );
-
-					// *... In the case of properties that might _actually_
-					// have dashes, we need to also store a copy of that
-					// unchanged property.
-					if ( key.indexOf( "-" ) > -1 && data !== undefined ) {
-						dataUser.set( this, key, value );
-					}
-				} );
-			}, null, value, arguments.length > 1, null, true );
-		},
-
-		removeData: function( key ) {
-			return this.each( function() {
-				dataUser.remove( this, key );
-			} );
-		}
-	} );
-
-
-	jQuery.extend( {
-		queue: function( elem, type, data ) {
-			var queue;
-
-			if ( elem ) {
-				type = ( type || "fx" ) + "queue";
-				queue = dataPriv.get( elem, type );
-
-				// Speed up dequeue by getting out quickly if this is just a lookup
-				if ( data ) {
-					if ( !queue || jQuery.isArray( data ) ) {
-						queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
-					} else {
-						queue.push( data );
-					}
-				}
-				return queue || [];
-			}
-		},
-
-		dequeue: function( elem, type ) {
-			type = type || "fx";
-
-			var queue = jQuery.queue( elem, type ),
-				startLength = queue.length,
-				fn = queue.shift(),
-				hooks = jQuery._queueHooks( elem, type ),
-				next = function() {
-					jQuery.dequeue( elem, type );
-				};
-
-			// If the fx queue is dequeued, always remove the progress sentinel
-			if ( fn === "inprogress" ) {
-				fn = queue.shift();
-				startLength--;
-			}
-
-			if ( fn ) {
-
-				// Add a progress sentinel to prevent the fx queue from being
-				// automatically dequeued
-				if ( type === "fx" ) {
-					queue.unshift( "inprogress" );
-				}
-
-				// Clear up the last queue stop function
-				delete hooks.stop;
-				fn.call( elem, next, hooks );
-			}
-
-			if ( !startLength && hooks ) {
-				hooks.empty.fire();
-			}
-		},
-
-		// Not public - generate a queueHooks object, or return the current one
-		_queueHooks: function( elem, type ) {
-			var key = type + "queueHooks";
-			return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
-				empty: jQuery.Callbacks( "once memory" ).add( function() {
-					dataPriv.remove( elem, [ type + "queue", key ] );
-				} )
-			} );
-		}
-	} );
-
-	jQuery.fn.extend( {
-		queue: function( type, data ) {
-			var setter = 2;
-
-			if ( typeof type !== "string" ) {
-				data = type;
-				type = "fx";
-				setter--;
-			}
-
-			if ( arguments.length < setter ) {
-				return jQuery.queue( this[ 0 ], type );
-			}
-
-			return data === undefined ?
-				this :
-				this.each( function() {
-					var queue = jQuery.queue( this, type, data );
-
-					// Ensure a hooks for this queue
-					jQuery._queueHooks( this, type );
-
-					if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
-						jQuery.dequeue( this, type );
-					}
-				} );
-		},
-		dequeue: function( type ) {
-			return this.each( function() {
-				jQuery.dequeue( this, type );
-			} );
-		},
-		clearQueue: function( type ) {
-			return this.queue( type || "fx", [] );
-		},
-
-		// Get a promise resolved when queues of a certain type
-		// are emptied (fx is the type by default)
-		promise: function( type, obj ) {
-			var tmp,
-				count = 1,
-				defer = jQuery.Deferred(),
-				elements = this,
-				i = this.length,
-				resolve = function() {
-					if ( !( --count ) ) {
-						defer.resolveWith( elements, [ elements ] );
-					}
-				};
-
-			if ( typeof type !== "string" ) {
-				obj = type;
-				type = undefined;
-			}
-			type = type || "fx";
-
-			while ( i-- ) {
-				tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
-				if ( tmp && tmp.empty ) {
-					count++;
-					tmp.empty.add( resolve );
-				}
-			}
-			resolve();
-			return defer.promise( obj );
-		}
-	} );
-	var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
-
-	var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
-
-
-	var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
-
-	var isHidden = function( elem, el ) {
-
-			// isHidden might be called from jQuery#filter function;
-			// in that case, element will be second argument
-			elem = el || elem;
-			return jQuery.css( elem, "display" ) === "none" ||
-				!jQuery.contains( elem.ownerDocument, elem );
-		};
-
-
-
-	function adjustCSS( elem, prop, valueParts, tween ) {
-		var adjusted,
-			scale = 1,
-			maxIterations = 20,
-			currentValue = tween ?
-				function() { return tween.cur(); } :
-				function() { return jQuery.css( elem, prop, "" ); },
-			initial = currentValue(),
-			unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
-
-			// Starting value computation is required for potential unit mismatches
-			initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
-				rcssNum.exec( jQuery.css( elem, prop ) );
-
-		if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
-
-			// Trust units reported by jQuery.css
-			unit = unit || initialInUnit[ 3 ];
-
-			// Make sure we update the tween properties later on
-			valueParts = valueParts || [];
-
-			// Iteratively approximate from a nonzero starting point
-			initialInUnit = +initial || 1;
-
-			do {
-
-				// If previous iteration zeroed out, double until we get *something*.
-				// Use string for doubling so we don't accidentally see scale as unchanged below
-				scale = scale || ".5";
-
-				// Adjust and apply
-				initialInUnit = initialInUnit / scale;
-				jQuery.style( elem, prop, initialInUnit + unit );
-
-			// Update scale, tolerating zero or NaN from tween.cur()
-			// Break the loop if scale is unchanged or perfect, or if we've just had enough.
-			} while (
-				scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
-			);
-		}
-
-		if ( valueParts ) {
-			initialInUnit = +initialInUnit || +initial || 0;
-
-			// Apply relative offset (+=/-=) if specified
-			adjusted = valueParts[ 1 ] ?
-				initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
-				+valueParts[ 2 ];
-			if ( tween ) {
-				tween.unit = unit;
-				tween.start = initialInUnit;
-				tween.end = adjusted;
-			}
-		}
-		return adjusted;
-	}
-	var rcheckableType = ( /^(?:checkbox|radio)$/i );
-
-	var rtagName = ( /<([\w:-]+)/ );
-
-	var rscriptType = ( /^$|\/(?:java|ecma)script/i );
-
-
-
-	// We have to close these tags to support XHTML (#13200)
-	var wrapMap = {
-
-		// Support: IE9
-		option: [ 1, "<select multiple='multiple'>", "</select>" ],
-
-		// XHTML parsers do not magically insert elements in the
-		// same way that tag soup parsers do. So we cannot shorten
-		// this by omitting <tbody> or other required elements.
-		thead: [ 1, "<table>", "</table>" ],
-		col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
-		tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-		td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-
-		_default: [ 0, "", "" ]
-	};
-
-	// Support: IE9
-	wrapMap.optgroup = wrapMap.option;
-
-	wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-	wrapMap.th = wrapMap.td;
-
-
-	function getAll( context, tag ) {
-
-		// Support: IE9-11+
-		// Use typeof to avoid zero-argument method invocation on host objects (#15151)
-		var ret = typeof context.getElementsByTagName !== "undefined" ?
-				context.getElementsByTagName( tag || "*" ) :
-				typeof context.querySelectorAll !== "undefined" ?
-					context.querySelectorAll( tag || "*" ) :
-				[];
-
-		return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
-			jQuery.merge( [ context ], ret ) :
-			ret;
-	}
-
-
-	// Mark scripts as having already been evaluated
-	function setGlobalEval( elems, refElements ) {
-		var i = 0,
-			l = elems.length;
-
-		for ( ; i < l; i++ ) {
-			dataPriv.set(
-				elems[ i ],
-				"globalEval",
-				!refElements || dataPriv.get( refElements[ i ], "globalEval" )
-			);
-		}
-	}
-
-
-	var rhtml = /<|&#?\w+;/;
-
-	function buildFragment( elems, context, scripts, selection, ignored ) {
-		var elem, tmp, tag, wrap, contains, j,
-			fragment = context.createDocumentFragment(),
-			nodes = [],
-			i = 0,
-			l = elems.length;
-
-		for ( ; i < l; i++ ) {
-			elem = elems[ i ];
-
-			if ( elem || elem === 0 ) {
-
-				// Add nodes directly
-				if ( jQuery.type( elem ) === "object" ) {
-
-					// Support: Android<4.1, PhantomJS<2
-					// push.apply(_, arraylike) throws on ancient WebKit
-					jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
-
-				// Convert non-html into a text node
-				} else if ( !rhtml.test( elem ) ) {
-					nodes.push( context.createTextNode( elem ) );
-
-				// Convert html into DOM nodes
-				} else {
-					tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
-
-					// Deserialize a standard representation
-					tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
-					wrap = wrapMap[ tag ] || wrapMap._default;
-					tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
-
-					// Descend through wrappers to the right content
-					j = wrap[ 0 ];
-					while ( j-- ) {
-						tmp = tmp.lastChild;
-					}
-
-					// Support: Android<4.1, PhantomJS<2
-					// push.apply(_, arraylike) throws on ancient WebKit
-					jQuery.merge( nodes, tmp.childNodes );
-
-					// Remember the top-level container
-					tmp = fragment.firstChild;
-
-					// Ensure the created nodes are orphaned (#12392)
-					tmp.textContent = "";
-				}
-			}
-		}
-
-		// Remove wrapper from fragment
-		fragment.textContent = "";
-
-		i = 0;
-		while ( ( elem = nodes[ i++ ] ) ) {
-
-			// Skip elements already in the context collection (trac-4087)
-			if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
-				if ( ignored ) {
-					ignored.push( elem );
-				}
-				continue;
-			}
-
-			contains = jQuery.contains( elem.ownerDocument, elem );
-
-			// Append to fragment
-			tmp = getAll( fragment.appendChild( elem ), "script" );
-
-			// Preserve script evaluation history
-			if ( contains ) {
-				setGlobalEval( tmp );
-			}
-
-			// Capture executables
-			if ( scripts ) {
-				j = 0;
-				while ( ( elem = tmp[ j++ ] ) ) {
-					if ( rscriptType.test( elem.type || "" ) ) {
-						scripts.push( elem );
-					}
-				}
-			}
-		}
-
-		return fragment;
-	}
-
-
-	( function() {
-		var fragment = document.createDocumentFragment(),
-			div = fragment.appendChild( document.createElement( "div" ) ),
-			input = document.createElement( "input" );
-
-		// Support: Android 4.0-4.3, Safari<=5.1
-		// Check state lost if the name is set (#11217)
-		// Support: Windows Web Apps (WWA)
-		// `name` and `type` must use .setAttribute for WWA (#14901)
-		input.setAttribute( "type", "radio" );
-		input.setAttribute( "checked", "checked" );
-		input.setAttribute( "name", "t" );
-
-		div.appendChild( input );
-
-		// Support: Safari<=5.1, Android<4.2
-		// Older WebKit doesn't clone checked state correctly in fragments
-		support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-		// Support: IE<=11+
-		// Make sure textarea (and checkbox) defaultValue is properly cloned
-		div.innerHTML = "<textarea>x</textarea>";
-		support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
-	} )();
-
-
-	var
-		rkeyEvent = /^key/,
-		rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
-		rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
-
-	function returnTrue() {
-		return true;
-	}
-
-	function returnFalse() {
-		return false;
-	}
-
-	// Support: IE9
-	// See #13393 for more info
-	function safeActiveElement() {
-		try {
-			return document.activeElement;
-		} catch ( err ) { }
-	}
-
-	function on( elem, types, selector, data, fn, one ) {
-		var origFn, type;
-
-		// Types can be a map of types/handlers
-		if ( typeof types === "object" ) {
-
-			// ( types-Object, selector, data )
-			if ( typeof selector !== "string" ) {
-
-				// ( types-Object, data )
-				data = data || selector;
-				selector = undefined;
-			}
-			for ( type in types ) {
-				on( elem, type, selector, data, types[ type ], one );
-			}
-			return elem;
-		}
-
-		if ( data == null && fn == null ) {
-
-			// ( types, fn )
-			fn = selector;
-			data = selector = undefined;
-		} else if ( fn == null ) {
-			if ( typeof selector === "string" ) {
-
-				// ( types, selector, fn )
-				fn = data;
-				data = undefined;
-			} else {
-
-				// ( types, data, fn )
-				fn = data;
-				data = selector;
-				selector = undefined;
-			}
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		} else if ( !fn ) {
-			return elem;
-		}
-
-		if ( one === 1 ) {
-			origFn = fn;
-			fn = function( event ) {
-
-				// Can use an empty set, since event contains the info
-				jQuery().off( event );
-				return origFn.apply( this, arguments );
-			};
-
-			// Use same guid so caller can remove using origFn
-			fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-		}
-		return elem.each( function() {
-			jQuery.event.add( this, types, fn, data, selector );
-		} );
-	}
-
-	/*
-	 * Helper functions for managing events -- not part of the public interface.
-	 * Props to Dean Edwards' addEvent library for many of the ideas.
-	 */
-	jQuery.event = {
-
-		global: {},
-
-		add: function( elem, types, handler, data, selector ) {
-
-			var handleObjIn, eventHandle, tmp,
-				events, t, handleObj,
-				special, handlers, type, namespaces, origType,
-				elemData = dataPriv.get( elem );
-
-			// Don't attach events to noData or text/comment nodes (but allow plain objects)
-			if ( !elemData ) {
-				return;
-			}
-
-			// Caller can pass in an object of custom data in lieu of the handler
-			if ( handler.handler ) {
-				handleObjIn = handler;
-				handler = handleObjIn.handler;
-				selector = handleObjIn.selector;
-			}
-
-			// Make sure that the handler has a unique ID, used to find/remove it later
-			if ( !handler.guid ) {
-				handler.guid = jQuery.guid++;
-			}
-
-			// Init the element's event structure and main handler, if this is the first
-			if ( !( events = elemData.events ) ) {
-				events = elemData.events = {};
-			}
-			if ( !( eventHandle = elemData.handle ) ) {
-				eventHandle = elemData.handle = function( e ) {
-
-					// Discard the second event of a jQuery.event.trigger() and
-					// when an event is called after a page has unloaded
-					return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
-						jQuery.event.dispatch.apply( elem, arguments ) : undefined;
-				};
-			}
-
-			// Handle multiple events separated by a space
-			types = ( types || "" ).match( rnotwhite ) || [ "" ];
-			t = types.length;
-			while ( t-- ) {
-				tmp = rtypenamespace.exec( types[ t ] ) || [];
-				type = origType = tmp[ 1 ];
-				namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
-
-				// There *must* be a type, no attaching namespace-only handlers
-				if ( !type ) {
-					continue;
-				}
-
-				// If event changes its type, use the special event handlers for the changed type
-				special = jQuery.event.special[ type ] || {};
-
-				// If selector defined, determine special event api type, otherwise given type
-				type = ( selector ? special.delegateType : special.bindType ) || type;
-
-				// Update special based on newly reset type
-				special = jQuery.event.special[ type ] || {};
-
-				// handleObj is passed to all event handlers
-				handleObj = jQuery.extend( {
-					type: type,
-					origType: origType,
-					data: data,
-					handler: handler,
-					guid: handler.guid,
-					selector: selector,
-					needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
-					namespace: namespaces.join( "." )
-				}, handleObjIn );
-
-				// Init the event handler queue if we're the first
-				if ( !( handlers = events[ type ] ) ) {
-					handlers = events[ type ] = [];
-					handlers.delegateCount = 0;
-
-					// Only use addEventListener if the special events handler returns false
-					if ( !special.setup ||
-						special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-
-						if ( elem.addEventListener ) {
-							elem.addEventListener( type, eventHandle );
-						}
-					}
-				}
-
-				if ( special.add ) {
-					special.add.call( elem, handleObj );
-
-					if ( !handleObj.handler.guid ) {
-						handleObj.handler.guid = handler.guid;
-					}
-				}
-
-				// Add to the element's handler list, delegates in front
-				if ( selector ) {
-					handlers.splice( handlers.delegateCount++, 0, handleObj );
-				} else {
-					handlers.push( handleObj );
-				}
-
-				// Keep track of which events have ever been used, for event optimization
-				jQuery.event.global[ type ] = true;
-			}
-
-		},
-
-		// Detach an event or set of events from an element
-		remove: function( elem, types, handler, selector, mappedTypes ) {
-
-			var j, origCount, tmp,
-				events, t, handleObj,
-				special, handlers, type, namespaces, origType,
-				elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
-
-			if ( !elemData || !( events = elemData.events ) ) {
-				return;
-			}
-
-			// Once for each type.namespace in types; type may be omitted
-			types = ( types || "" ).match( rnotwhite ) || [ "" ];
-			t = types.length;
-			while ( t-- ) {
-				tmp = rtypenamespace.exec( types[ t ] ) || [];
-				type = origType = tmp[ 1 ];
-				namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
-
-				// Unbind all events (on this namespace, if provided) for the element
-				if ( !type ) {
-					for ( type in events ) {
-						jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-					}
-					continue;
-				}
-
-				special = jQuery.event.special[ type ] || {};
-				type = ( selector ? special.delegateType : special.bindType ) || type;
-				handlers = events[ type ] || [];
-				tmp = tmp[ 2 ] &&
-					new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
-
-				// Remove matching events
-				origCount = j = handlers.length;
-				while ( j-- ) {
-					handleObj = handlers[ j ];
-
-					if ( ( mappedTypes || origType === handleObj.origType ) &&
-						( !handler || handler.guid === handleObj.guid ) &&
-						( !tmp || tmp.test( handleObj.namespace ) ) &&
-						( !selector || selector === handleObj.selector ||
-							selector === "**" && handleObj.selector ) ) {
-						handlers.splice( j, 1 );
-
-						if ( handleObj.selector ) {
-							handlers.delegateCount--;
-						}
-						if ( special.remove ) {
-							special.remove.call( elem, handleObj );
-						}
-					}
-				}
-
-				// Remove generic event handler if we removed something and no more handlers exist
-				// (avoids potential for endless recursion during removal of special event handlers)
-				if ( origCount && !handlers.length ) {
-					if ( !special.teardown ||
-						special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
-
-						jQuery.removeEvent( elem, type, elemData.handle );
-					}
-
-					delete events[ type ];
-				}
-			}
-
-			// Remove data and the expando if it's no longer used
-			if ( jQuery.isEmptyObject( events ) ) {
-				dataPriv.remove( elem, "handle events" );
-			}
-		},
-
-		dispatch: function( event ) {
-
-			// Make a writable jQuery.Event from the native event object
-			event = jQuery.event.fix( event );
-
-			var i, j, ret, matched, handleObj,
-				handlerQueue = [],
-				args = slice.call( arguments ),
-				handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
-				special = jQuery.event.special[ event.type ] || {};
-
-			// Use the fix-ed jQuery.Event rather than the (read-only) native event
-			args[ 0 ] = event;
-			event.delegateTarget = this;
-
-			// Call the preDispatch hook for the mapped type, and let it bail if desired
-			if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-				return;
-			}
-
-			// Determine handlers
-			handlerQueue = jQuery.event.handlers.call( this, event, handlers );
-
-			// Run delegates first; they may want to stop propagation beneath us
-			i = 0;
-			while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
-				event.currentTarget = matched.elem;
-
-				j = 0;
-				while ( ( handleObj = matched.handlers[ j++ ] ) &&
-					!event.isImmediatePropagationStopped() ) {
-
-					// Triggered event must either 1) have no namespace, or 2) have namespace(s)
-					// a subset or equal to those in the bound event (both can have no namespace).
-					if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
-
-						event.handleObj = handleObj;
-						event.data = handleObj.data;
-
-						ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
-							handleObj.handler ).apply( matched.elem, args );
-
-						if ( ret !== undefined ) {
-							if ( ( event.result = ret ) === false ) {
-								event.preventDefault();
-								event.stopPropagation();
-							}
-						}
-					}
-				}
-			}
-
-			// Call the postDispatch hook for the mapped type
-			if ( special.postDispatch ) {
-				special.postDispatch.call( this, event );
-			}
-
-			return event.result;
-		},
-
-		handlers: function( event, handlers ) {
-			var i, matches, sel, handleObj,
-				handlerQueue = [],
-				delegateCount = handlers.delegateCount,
-				cur = event.target;
-
-			// Support (at least): Chrome, IE9
-			// Find delegate handlers
-			// Black-hole SVG <use> instance trees (#13180)
-			//
-			// Support: Firefox<=42+
-			// Avoid non-left-click in FF but don't block IE radio events (#3861, gh-2343)
-			if ( delegateCount && cur.nodeType &&
-				( event.type !== "click" || isNaN( event.button ) || event.button < 1 ) ) {
-
-				for ( ; cur !== this; cur = cur.parentNode || this ) {
-
-					// Don't check non-elements (#13208)
-					// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
-					if ( cur.nodeType === 1 && ( cur.disabled !== true || event.type !== "click" ) ) {
-						matches = [];
-						for ( i = 0; i < delegateCount; i++ ) {
-							handleObj = handlers[ i ];
-
-							// Don't conflict with Object.prototype properties (#13203)
-							sel = handleObj.selector + " ";
-
-							if ( matches[ sel ] === undefined ) {
-								matches[ sel ] = handleObj.needsContext ?
-									jQuery( sel, this ).index( cur ) > -1 :
-									jQuery.find( sel, this, null, [ cur ] ).length;
-							}
-							if ( matches[ sel ] ) {
-								matches.push( handleObj );
-							}
-						}
-						if ( matches.length ) {
-							handlerQueue.push( { elem: cur, handlers: matches } );
-						}
-					}
-				}
-			}
-
-			// Add the remaining (directly-bound) handlers
-			if ( delegateCount < handlers.length ) {
-				handlerQueue.push( { elem: this, handlers: handlers.slice( delegateCount ) } );
-			}
-
-			return handlerQueue;
-		},
-
-		// Includes some event props shared by KeyEvent and MouseEvent
-		props: ( "altKey bubbles cancelable ctrlKey currentTarget detail eventPhase " +
-			"metaKey relatedTarget shiftKey target timeStamp view which" ).split( " " ),
-
-		fixHooks: {},
-
-		keyHooks: {
-			props: "char charCode key keyCode".split( " " ),
-			filter: function( event, original ) {
-
-				// Add which for key events
-				if ( event.which == null ) {
-					event.which = original.charCode != null ? original.charCode : original.keyCode;
-				}
-
-				return event;
-			}
-		},
-
-		mouseHooks: {
-			props: ( "button buttons clientX clientY offsetX offsetY pageX pageY " +
-				"screenX screenY toElement" ).split( " " ),
-			filter: function( event, original ) {
-				var eventDoc, doc, body,
-					button = original.button;
-
-				// Calculate pageX/Y if missing and clientX/Y available
-				if ( event.pageX == null && original.clientX != null ) {
-					eventDoc = event.target.ownerDocument || document;
-					doc = eventDoc.documentElement;
-					body = eventDoc.body;
-
-					event.pageX = original.clientX +
-						( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) -
-						( doc && doc.clientLeft || body && body.clientLeft || 0 );
-					event.pageY = original.clientY +
-						( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) -
-						( doc && doc.clientTop  || body && body.clientTop  || 0 );
-				}
-
-				// Add which for click: 1 === left; 2 === middle; 3 === right
-				// Note: button is not normalized, so don't use it
-				if ( !event.which && button !== undefined ) {
-					event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
-				}
-
-				return event;
-			}
-		},
-
-		fix: function( event ) {
-			if ( event[ jQuery.expando ] ) {
-				return event;
-			}
-
-			// Create a writable copy of the event object and normalize some properties
-			var i, prop, copy,
-				type = event.type,
-				originalEvent = event,
-				fixHook = this.fixHooks[ type ];
-
-			if ( !fixHook ) {
-				this.fixHooks[ type ] = fixHook =
-					rmouseEvent.test( type ) ? this.mouseHooks :
-					rkeyEvent.test( type ) ? this.keyHooks :
-					{};
-			}
-			copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
-
-			event = new jQuery.Event( originalEvent );
-
-			i = copy.length;
-			while ( i-- ) {
-				prop = copy[ i ];
-				event[ prop ] = originalEvent[ prop ];
-			}
-
-			// Support: Cordova 2.5 (WebKit) (#13255)
-			// All events should have a target; Cordova deviceready doesn't
-			if ( !event.target ) {
-				event.target = document;
-			}
-
-			// Support: Safari 6.0+, Chrome<28
-			// Target should not be a text node (#504, #13143)
-			if ( event.target.nodeType === 3 ) {
-				event.target = event.target.parentNode;
-			}
-
-			return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
-		},
-
-		special: {
-			load: {
-
-				// Prevent triggered image.load events from bubbling to window.load
-				noBubble: true
-			},
-			focus: {
-
-				// Fire native event if possible so blur/focus sequence is correct
-				trigger: function() {
-					if ( this !== safeActiveElement() && this.focus ) {
-						this.focus();
-						return false;
-					}
-				},
-				delegateType: "focusin"
-			},
-			blur: {
-				trigger: function() {
-					if ( this === safeActiveElement() && this.blur ) {
-						this.blur();
-						return false;
-					}
-				},
-				delegateType: "focusout"
-			},
-			click: {
-
-				// For checkbox, fire native event so checked state will be right
-				trigger: function() {
-					if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
-						this.click();
-						return false;
-					}
-				},
-
-				// For cross-browser consistency, don't fire native .click() on links
-				_default: function( event ) {
-					return jQuery.nodeName( event.target, "a" );
-				}
-			},
-
-			beforeunload: {
-				postDispatch: function( event ) {
-
-					// Support: Firefox 20+
-					// Firefox doesn't alert if the returnValue field is not set.
-					if ( event.result !== undefined && event.originalEvent ) {
-						event.originalEvent.returnValue = event.result;
-					}
-				}
-			}
-		}
-	};
-
-	jQuery.removeEvent = function( elem, type, handle ) {
-
-		// This "if" is needed for plain objects
-		if ( elem.removeEventListener ) {
-			elem.removeEventListener( type, handle );
-		}
-	};
-
-	jQuery.Event = function( src, props ) {
-
-		// Allow instantiation without the 'new' keyword
-		if ( !( this instanceof jQuery.Event ) ) {
-			return new jQuery.Event( src, props );
-		}
-
-		// Event object
-		if ( src && src.type ) {
-			this.originalEvent = src;
-			this.type = src.type;
-
-			// Events bubbling up the document may have been marked as prevented
-			// by a handler lower down the tree; reflect the correct value.
-			this.isDefaultPrevented = src.defaultPrevented ||
-					src.defaultPrevented === undefined &&
-
-					// Support: Android<4.0
-					src.returnValue === false ?
-				returnTrue :
-				returnFalse;
-
-		// Event type
-		} else {
-			this.type = src;
-		}
-
-		// Put explicitly provided properties onto the event object
-		if ( props ) {
-			jQuery.extend( this, props );
-		}
-
-		// Create a timestamp if incoming event doesn't have one
-		this.timeStamp = src && src.timeStamp || jQuery.now();
-
-		// Mark it as fixed
-		this[ jQuery.expando ] = true;
-	};
-
-	// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-	// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-	jQuery.Event.prototype = {
-		constructor: jQuery.Event,
-		isDefaultPrevented: returnFalse,
-		isPropagationStopped: returnFalse,
-		isImmediatePropagationStopped: returnFalse,
-		isSimulated: false,
-
-		preventDefault: function() {
-			var e = this.originalEvent;
-
-			this.isDefaultPrevented = returnTrue;
-
-			if ( e && !this.isSimulated ) {
-				e.preventDefault();
-			}
-		},
-		stopPropagation: function() {
-			var e = this.originalEvent;
-
-			this.isPropagationStopped = returnTrue;
-
-			if ( e && !this.isSimulated ) {
-				e.stopPropagation();
-			}
-		},
-		stopImmediatePropagation: function() {
-			var e = this.originalEvent;
-
-			this.isImmediatePropagationStopped = returnTrue;
-
-			if ( e && !this.isSimulated ) {
-				e.stopImmediatePropagation();
-			}
-
-			this.stopPropagation();
-		}
-	};
-
-	// Create mouseenter/leave events using mouseover/out and event-time checks
-	// so that event delegation works in jQuery.
-	// Do the same for pointerenter/pointerleave and pointerover/pointerout
-	//
-	// Support: Safari 7 only
-	// Safari sends mouseenter too often; see:
-	// https://code.google.com/p/chromium/issues/detail?id=470258
-	// for the description of the bug (it existed in older Chrome versions as well).
-	jQuery.each( {
-		mouseenter: "mouseover",
-		mouseleave: "mouseout",
-		pointerenter: "pointerover",
-		pointerleave: "pointerout"
-	}, function( orig, fix ) {
-		jQuery.event.special[ orig ] = {
-			delegateType: fix,
-			bindType: fix,
-
-			handle: function( event ) {
-				var ret,
-					target = this,
-					related = event.relatedTarget,
-					handleObj = event.handleObj;
-
-				// For mouseenter/leave call the handler if related is outside the target.
-				// NB: No relatedTarget if the mouse left/entered the browser window
-				if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
-					event.type = handleObj.origType;
-					ret = handleObj.handler.apply( this, arguments );
-					event.type = fix;
-				}
-				return ret;
-			}
-		};
-	} );
-
-	jQuery.fn.extend( {
-		on: function( types, selector, data, fn ) {
-			return on( this, types, selector, data, fn );
-		},
-		one: function( types, selector, data, fn ) {
-			return on( this, types, selector, data, fn, 1 );
-		},
-		off: function( types, selector, fn ) {
-			var handleObj, type;
-			if ( types && types.preventDefault && types.handleObj ) {
-
-				// ( event )  dispatched jQuery.Event
-				handleObj = types.handleObj;
-				jQuery( types.delegateTarget ).off(
-					handleObj.namespace ?
-						handleObj.origType + "." + handleObj.namespace :
-						handleObj.origType,
-					handleObj.selector,
-					handleObj.handler
-				);
-				return this;
-			}
-			if ( typeof types === "object" ) {
-
-				// ( types-object [, selector] )
-				for ( type in types ) {
-					this.off( type, selector, types[ type ] );
-				}
-				return this;
-			}
-			if ( selector === false || typeof selector === "function" ) {
-
-				// ( types [, fn] )
-				fn = selector;
-				selector = undefined;
-			}
-			if ( fn === false ) {
-				fn = returnFalse;
-			}
-			return this.each( function() {
-				jQuery.event.remove( this, types, fn, selector );
-			} );
-		}
-	} );
-
-
-	var
-		rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:-]+)[^>]*)\/>/gi,
-
-		// Support: IE 10-11, Edge 10240+
-		// In IE/Edge using regex groups here causes severe slowdowns.
-		// See https://connect.microsoft.com/IE/feedback/details/1736512/
-		rnoInnerhtml = /<script|<style|<link/i,
-
-		// checked="checked" or checked
-		rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-		rscriptTypeMasked = /^true\/(.*)/,
-		rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
-
-	// Manipulating tables requires a tbody
-	function manipulationTarget( elem, content ) {
-		return jQuery.nodeName( elem, "table" ) &&
-			jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?
-
-			elem.getElementsByTagName( "tbody" )[ 0 ] ||
-				elem.appendChild( elem.ownerDocument.createElement( "tbody" ) ) :
-			elem;
-	}
-
-	// Replace/restore the type attribute of script elements for safe DOM manipulation
-	function disableScript( elem ) {
-		elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
-		return elem;
-	}
-	function restoreScript( elem ) {
-		var match = rscriptTypeMasked.exec( elem.type );
-
-		if ( match ) {
-			elem.type = match[ 1 ];
-		} else {
-			elem.removeAttribute( "type" );
-		}
-
-		return elem;
-	}
-
-	function cloneCopyEvent( src, dest ) {
-		var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
-
-		if ( dest.nodeType !== 1 ) {
-			return;
-		}
-
-		// 1. Copy private data: events, handlers, etc.
-		if ( dataPriv.hasData( src ) ) {
-			pdataOld = dataPriv.access( src );
-			pdataCur = dataPriv.set( dest, pdataOld );
-			events = pdataOld.events;
-
-			if ( events ) {
-				delete pdataCur.handle;
-				pdataCur.events = {};
-
-				for ( type in events ) {
-					for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-						jQuery.event.add( dest, type, events[ type ][ i ] );
-					}
-				}
-			}
-		}
-
-		// 2. Copy user data
-		if ( dataUser.hasData( src ) ) {
-			udataOld = dataUser.access( src );
-			udataCur = jQuery.extend( {}, udataOld );
-
-			dataUser.set( dest, udataCur );
-		}
-	}
-
-	// Fix IE bugs, see support tests
-	function fixInput( src, dest ) {
-		var nodeName = dest.nodeName.toLowerCase();
-
-		// Fails to persist the checked state of a cloned checkbox or radio button.
-		if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
-			dest.checked = src.checked;
-
-		// Fails to return the selected option to the default selected state when cloning options
-		} else if ( nodeName === "input" || nodeName === "textarea" ) {
-			dest.defaultValue = src.defaultValue;
-		}
-	}
-
-	function domManip( collection, args, callback, ignored ) {
-
-		// Flatten any nested arrays
-		args = concat.apply( [], args );
-
-		var fragment, first, scripts, hasScripts, node, doc,
-			i = 0,
-			l = collection.length,
-			iNoClone = l - 1,
-			value = args[ 0 ],
-			isFunction = jQuery.isFunction( value );
-
-		// We can't cloneNode fragments that contain checked, in WebKit
-		if ( isFunction ||
-				( l > 1 && typeof value === "string" &&
-					!support.checkClone && rchecked.test( value ) ) ) {
-			return collection.each( function( index ) {
-				var self = collection.eq( index );
-				if ( isFunction ) {
-					args[ 0 ] = value.call( this, index, self.html() );
-				}
-				domManip( self, args, callback, ignored );
-			} );
-		}
-
-		if ( l ) {
-			fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
-			first = fragment.firstChild;
-
-			if ( fragment.childNodes.length === 1 ) {
-				fragment = first;
-			}
-
-			// Require either new content or an interest in ignored elements to invoke the callback
-			if ( first || ignored ) {
-				scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
-				hasScripts = scripts.length;
-
-				// Use the original fragment for the last item
-				// instead of the first because it can end up
-				// being emptied incorrectly in certain situations (#8070).
-				for ( ; i < l; i++ ) {
-					node = fragment;
-
-					if ( i !== iNoClone ) {
-						node = jQuery.clone( node, true, true );
-
-						// Keep references to cloned scripts for later restoration
-						if ( hasScripts ) {
-
-							// Support: Android<4.1, PhantomJS<2
-							// push.apply(_, arraylike) throws on ancient WebKit
-							jQuery.merge( scripts, getAll( node, "script" ) );
-						}
-					}
-
-					callback.call( collection[ i ], node, i );
-				}
-
-				if ( hasScripts ) {
-					doc = scripts[ scripts.length - 1 ].ownerDocument;
-
-					// Reenable scripts
-					jQuery.map( scripts, restoreScript );
-
-					// Evaluate executable scripts on first document insertion
-					for ( i = 0; i < hasScripts; i++ ) {
-						node = scripts[ i ];
-						if ( rscriptType.test( node.type || "" ) &&
-							!dataPriv.access( node, "globalEval" ) &&
-							jQuery.contains( doc, node ) ) {
-
-							if ( node.src ) {
-
-								// Optional AJAX dependency, but won't run scripts if not present
-								if ( jQuery._evalUrl ) {
-									jQuery._evalUrl( node.src );
-								}
-							} else {
-								jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
-							}
-						}
-					}
-				}
-			}
-		}
-
-		return collection;
-	}
-
-	function remove( elem, selector, keepData ) {
-		var node,
-			nodes = selector ? jQuery.filter( selector, elem ) : elem,
-			i = 0;
-
-		for ( ; ( node = nodes[ i ] ) != null; i++ ) {
-			if ( !keepData && node.nodeType === 1 ) {
-				jQuery.cleanData( getAll( node ) );
-			}
-
-			if ( node.parentNode ) {
-				if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
-					setGlobalEval( getAll( node, "script" ) );
-				}
-				node.parentNode.removeChild( node );
-			}
-		}
-
-		return elem;
-	}
-
-	jQuery.extend( {
-		htmlPrefilter: function( html ) {
-			return html.replace( rxhtmlTag, "<$1></$2>" );
-		},
-
-		clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-			var i, l, srcElements, destElements,
-				clone = elem.cloneNode( true ),
-				inPage = jQuery.contains( elem.ownerDocument, elem );
-
-			// Fix IE cloning issues
-			if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
-					!jQuery.isXMLDoc( elem ) ) {
-
-				// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
-				destElements = getAll( clone );
-				srcElements = getAll( elem );
-
-				for ( i = 0, l = srcElements.length; i < l; i++ ) {
-					fixInput( srcElements[ i ], destElements[ i ] );
-				}
-			}
-
-			// Copy the events from the original to the clone
-			if ( dataAndEvents ) {
-				if ( deepDataAndEvents ) {
-					srcElements = srcElements || getAll( elem );
-					destElements = destElements || getAll( clone );
-
-					for ( i = 0, l = srcElements.length; i < l; i++ ) {
-						cloneCopyEvent( srcElements[ i ], destElements[ i ] );
-					}
-				} else {
-					cloneCopyEvent( elem, clone );
-				}
-			}
-
-			// Preserve script evaluation history
-			destElements = getAll( clone, "script" );
-			if ( destElements.length > 0 ) {
-				setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
-			}
-
-			// Return the cloned set
-			return clone;
-		},
-
-		cleanData: function( elems ) {
-			var data, elem, type,
-				special = jQuery.event.special,
-				i = 0;
-
-			for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
-				if ( acceptData( elem ) ) {
-					if ( ( data = elem[ dataPriv.expando ] ) ) {
-						if ( data.events ) {
-							for ( type in data.events ) {
-								if ( special[ type ] ) {
-									jQuery.event.remove( elem, type );
-
-								// This is a shortcut to avoid jQuery.event.remove's overhead
-								} else {
-									jQuery.removeEvent( elem, type, data.handle );
-								}
-							}
-						}
-
-						// Support: Chrome <= 35-45+
-						// Assign undefined instead of using delete, see Data#remove
-						elem[ dataPriv.expando ] = undefined;
-					}
-					if ( elem[ dataUser.expando ] ) {
-
-						// Support: Chrome <= 35-45+
-						// Assign undefined instead of using delete, see Data#remove
-						elem[ dataUser.expando ] = undefined;
-					}
-				}
-			}
-		}
-	} );
-
-	jQuery.fn.extend( {
-
-		// Keep domManip exposed until 3.0 (gh-2225)
-		domManip: domManip,
-
-		detach: function( selector ) {
-			return remove( this, selector, true );
-		},
-
-		remove: function( selector ) {
-			return remove( this, selector );
-		},
-
-		text: function( value ) {
-			return access( this, function( value ) {
-				return value === undefined ?
-					jQuery.text( this ) :
-					this.empty().each( function() {
-						if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-							this.textContent = value;
-						}
-					} );
-			}, null, value, arguments.length );
-		},
-
-		append: function() {
-			return domManip( this, arguments, function( elem ) {
-				if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-					var target = manipulationTarget( this, elem );
-					target.appendChild( elem );
-				}
-			} );
-		},
-
-		prepend: function() {
-			return domManip( this, arguments, function( elem ) {
-				if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-					var target = manipulationTarget( this, elem );
-					target.insertBefore( elem, target.firstChild );
-				}
-			} );
-		},
-
-		before: function() {
-			return domManip( this, arguments, function( elem ) {
-				if ( this.parentNode ) {
-					this.parentNode.insertBefore( elem, this );
-				}
-			} );
-		},
-
-		after: function() {
-			return domManip( this, arguments, function( elem ) {
-				if ( this.parentNode ) {
-					this.parentNode.insertBefore( elem, this.nextSibling );
-				}
-			} );
-		},
-
-		empty: function() {
-			var elem,
-				i = 0;
-
-			for ( ; ( elem = this[ i ] ) != null; i++ ) {
-				if ( elem.nodeType === 1 ) {
-
-					// Prevent memory leaks
-					jQuery.cleanData( getAll( elem, false ) );
-
-					// Remove any remaining nodes
-					elem.textContent = "";
-				}
-			}
-
-			return this;
-		},
-
-		clone: function( dataAndEvents, deepDataAndEvents ) {
-			dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-			deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-			return this.map( function() {
-				return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-			} );
-		},
-
-		html: function( value ) {
-			return access( this, function( value ) {
-				var elem = this[ 0 ] || {},
-					i = 0,
-					l = this.length;
-
-				if ( value === undefined && elem.nodeType === 1 ) {
-					return elem.innerHTML;
-				}
-
-				// See if we can take a shortcut and just use innerHTML
-				if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-					!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
-
-					value = jQuery.htmlPrefilter( value );
-
-					try {
-						for ( ; i < l; i++ ) {
-							elem = this[ i ] || {};
-
-							// Remove element nodes and prevent memory leaks
-							if ( elem.nodeType === 1 ) {
-								jQuery.cleanData( getAll( elem, false ) );
-								elem.innerHTML = value;
-							}
-						}
-
-						elem = 0;
-
-					// If using innerHTML throws an exception, use the fallback method
-					} catch ( e ) {}
-				}
-
-				if ( elem ) {
-					this.empty().append( value );
-				}
-			}, null, value, arguments.length );
-		},
-
-		replaceWith: function() {
-			var ignored = [];
-
-			// Make the changes, replacing each non-ignored context element with the new content
-			return domManip( this, arguments, function( elem ) {
-				var parent = this.parentNode;
-
-				if ( jQuery.inArray( this, ignored ) < 0 ) {
-					jQuery.cleanData( getAll( this ) );
-					if ( parent ) {
-						parent.replaceChild( elem, this );
-					}
-				}
-
-			// Force callback invocation
-			}, ignored );
-		}
-	} );
-
-	jQuery.each( {
-		appendTo: "append",
-		prependTo: "prepend",
-		insertBefore: "before",
-		insertAfter: "after",
-		replaceAll: "replaceWith"
-	}, function( name, original ) {
-		jQuery.fn[ name ] = function( selector ) {
-			var elems,
-				ret = [],
-				insert = jQuery( selector ),
-				last = insert.length - 1,
-				i = 0;
-
-			for ( ; i <= last; i++ ) {
-				elems = i === last ? this : this.clone( true );
-				jQuery( insert[ i ] )[ original ]( elems );
-
-				// Support: QtWebKit
-				// .get() because push.apply(_, arraylike) throws
-				push.apply( ret, elems.get() );
-			}
-
-			return this.pushStack( ret );
-		};
-	} );
-
-
-	var iframe,
-		elemdisplay = {
-
-			// Support: Firefox
-			// We have to pre-define these values for FF (#10227)
-			HTML: "block",
-			BODY: "block"
-		};
-
-	/**
-	 * Retrieve the actual display of a element
-	 * @param {String} name nodeName of the element
-	 * @param {Object} doc Document object
-	 */
-
-	// Called only from within defaultDisplay
-	function actualDisplay( name, doc ) {
-		var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
-
-			display = jQuery.css( elem[ 0 ], "display" );
-
-		// We don't have any data stored on the element,
-		// so use "detach" method as fast way to get rid of the element
-		elem.detach();
-
-		return display;
-	}
-
-	/**
-	 * Try to determine the default display value of an element
-	 * @param {String} nodeName
-	 */
-	function defaultDisplay( nodeName ) {
-		var doc = document,
-			display = elemdisplay[ nodeName ];
-
-		if ( !display ) {
-			display = actualDisplay( nodeName, doc );
-
-			// If the simple way fails, read from inside an iframe
-			if ( display === "none" || !display ) {
-
-				// Use the already-created iframe if possible
-				iframe = ( iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" ) )
-					.appendTo( doc.documentElement );
-
-				// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
-				doc = iframe[ 0 ].contentDocument;
-
-				// Support: IE
-				doc.write();
-				doc.close();
-
-				display = actualDisplay( nodeName, doc );
-				iframe.detach();
-			}
-
-			// Store the correct default display
-			elemdisplay[ nodeName ] = display;
-		}
-
-		return display;
-	}
-	var rmargin = ( /^margin/ );
-
-	var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
-
-	var getStyles = function( elem ) {
-
-			// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
-			// IE throws on elements created in popups
-			// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
-			var view = elem.ownerDocument.defaultView;
-
-			if ( !view || !view.opener ) {
-				view = window;
-			}
-
-			return view.getComputedStyle( elem );
-		};
-
-	var swap = function( elem, options, callback, args ) {
-		var ret, name,
-			old = {};
-
-		// Remember the old values, and insert the new ones
-		for ( name in options ) {
-			old[ name ] = elem.style[ name ];
-			elem.style[ name ] = options[ name ];
-		}
-
-		ret = callback.apply( elem, args || [] );
-
-		// Revert the old values
-		for ( name in options ) {
-			elem.style[ name ] = old[ name ];
-		}
-
-		return ret;
-	};
-
-
-	var documentElement = document.documentElement;
-
-
-
-	( function() {
-		var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
-			container = document.createElement( "div" ),
-			div = document.createElement( "div" );
-
-		// Finish early in limited (non-browser) environments
-		if ( !div.style ) {
-			return;
-		}
-
-		// Support: IE9-11+
-		// Style of cloned element affects source element cloned (#8908)
-		div.style.backgroundClip = "content-box";
-		div.cloneNode( true ).style.backgroundClip = "";
-		support.clearCloneStyle = div.style.backgroundClip === "content-box";
-
-		container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
-			"padding:0;margin-top:1px;position:absolute";
-		container.appendChild( div );
-
-		// Executing both pixelPosition & boxSizingReliable tests require only one layout
-		// so they're executed at the same time to save the second computation.
-		function computeStyleTests() {
-			div.style.cssText =
-
-				// Support: Firefox<29, Android 2.3
-				// Vendor-prefix box-sizing
-				"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;" +
-				"position:relative;display:block;" +
-				"margin:auto;border:1px;padding:1px;" +
-				"top:1%;width:50%";
-			div.innerHTML = "";
-			documentElement.appendChild( container );
-
-			var divStyle = window.getComputedStyle( div );
-			pixelPositionVal = divStyle.top !== "1%";
-			reliableMarginLeftVal = divStyle.marginLeft === "2px";
-			boxSizingReliableVal = divStyle.width === "4px";
-
-			// Support: Android 4.0 - 4.3 only
-			// Some styles come back with percentage values, even though they shouldn't
-			div.style.marginRight = "50%";
-			pixelMarginRightVal = divStyle.marginRight === "4px";
-
-			documentElement.removeChild( container );
-		}
-
-		jQuery.extend( support, {
-			pixelPosition: function() {
-
-				// This test is executed only once but we still do memoizing
-				// since we can use the boxSizingReliable pre-computing.
-				// No need to check if the test was already performed, though.
-				computeStyleTests();
-				return pixelPositionVal;
-			},
-			boxSizingReliable: function() {
-				if ( boxSizingReliableVal == null ) {
-					computeStyleTests();
-				}
-				return boxSizingReliableVal;
-			},
-			pixelMarginRight: function() {
-
-				// Support: Android 4.0-4.3
-				// We're checking for boxSizingReliableVal here instead of pixelMarginRightVal
-				// since that compresses better and they're computed together anyway.
-				if ( boxSizingReliableVal == null ) {
-					computeStyleTests();
-				}
-				return pixelMarginRightVal;
-			},
-			reliableMarginLeft: function() {
-
-				// Support: IE <=8 only, Android 4.0 - 4.3 only, Firefox <=3 - 37
-				if ( boxSizingReliableVal == null ) {
-					computeStyleTests();
-				}
-				return reliableMarginLeftVal;
-			},
-			reliableMarginRight: function() {
-
-				// Support: Android 2.3
-				// Check if div with explicit width and no margin-right incorrectly
-				// gets computed margin-right based on width of container. (#3333)
-				// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-				// This support function is only executed once so no memoizing is needed.
-				var ret,
-					marginDiv = div.appendChild( document.createElement( "div" ) );
-
-				// Reset CSS: box-sizing; display; margin; border; padding
-				marginDiv.style.cssText = div.style.cssText =
-
-					// Support: Android 2.3
-					// Vendor-prefix box-sizing
-					"-webkit-box-sizing:content-box;box-sizing:content-box;" +
-					"display:block;margin:0;border:0;padding:0";
-				marginDiv.style.marginRight = marginDiv.style.width = "0";
-				div.style.width = "1px";
-				documentElement.appendChild( container );
-
-				ret = !parseFloat( window.getComputedStyle( marginDiv ).marginRight );
-
-				documentElement.removeChild( container );
-				div.removeChild( marginDiv );
-
-				return ret;
-			}
-		} );
-	} )();
-
-
-	function curCSS( elem, name, computed ) {
-		var width, minWidth, maxWidth, ret,
-			style = elem.style;
-
-		computed = computed || getStyles( elem );
-		ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined;
-
-		// Support: Opera 12.1x only
-		// Fall back to style even without computed
-		// computed is undefined for elems on document fragments
-		if ( ( ret === "" || ret === undefined ) && !jQuery.contains( elem.ownerDocument, elem ) ) {
-			ret = jQuery.style( elem, name );
-		}
-
-		// Support: IE9
-		// getPropertyValue is only needed for .css('filter') (#12537)
-		if ( computed ) {
-
-			// A tribute to the "awesome hack by Dean Edwards"
-			// Android Browser returns percentage for some values,
-			// but width seems to be reliably pixels.
-			// This is against the CSSOM draft spec:
-			// http://dev.w3.org/csswg/cssom/#resolved-values
-			if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-				// Remember the original values
-				width = style.width;
-				minWidth = style.minWidth;
-				maxWidth = style.maxWidth;
-
-				// Put in the new values to get a computed value out
-				style.minWidth = style.maxWidth = style.width = ret;
-				ret = computed.width;
-
-				// Revert the changed values
-				style.width = width;
-				style.minWidth = minWidth;
-				style.maxWidth = maxWidth;
-			}
-		}
-
-		return ret !== undefined ?
-
-			// Support: IE9-11+
-			// IE returns zIndex value as an integer.
-			ret + "" :
-			ret;
-	}
-
-
-	function addGetHookIf( conditionFn, hookFn ) {
-
-		// Define the hook, we'll check on the first run if it's really needed.
-		return {
-			get: function() {
-				if ( conditionFn() ) {
-
-					// Hook not needed (or it's not possible to use it due
-					// to missing dependency), remove it.
-					delete this.get;
-					return;
-				}
-
-				// Hook needed; redefine it so that the support test is not executed again.
-				return ( this.get = hookFn ).apply( this, arguments );
-			}
-		};
-	}
-
-
-	var
-
-		// Swappable if display is none or starts with table
-		// except "table", "table-cell", or "table-caption"
-		// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
-		rdisplayswap = /^(none|table(?!-c[ea]).+)/,
-
-		cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-		cssNormalTransform = {
-			letterSpacing: "0",
-			fontWeight: "400"
-		},
-
-		cssPrefixes = [ "Webkit", "O", "Moz", "ms" ],
-		emptyStyle = document.createElement( "div" ).style;
-
-	// Return a css property mapped to a potentially vendor prefixed property
-	function vendorPropName( name ) {
-
-		// Shortcut for names that are not vendor prefixed
-		if ( name in emptyStyle ) {
-			return name;
-		}
-
-		// Check for vendor prefixed names
-		var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
-			i = cssPrefixes.length;
-
-		while ( i-- ) {
-			name = cssPrefixes[ i ] + capName;
-			if ( name in emptyStyle ) {
-				return name;
-			}
-		}
-	}
-
-	function setPositiveNumber( elem, value, subtract ) {
-
-		// Any relative (+/-) values have already been
-		// normalized at this point
-		var matches = rcssNum.exec( value );
-		return matches ?
-
-			// Guard against undefined "subtract", e.g., when used as in cssHooks
-			Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
-			value;
-	}
-
-	function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
-		var i = extra === ( isBorderBox ? "border" : "content" ) ?
-
-			// If we already have the right measurement, avoid augmentation
-			4 :
-
-			// Otherwise initialize for horizontal or vertical properties
-			name === "width" ? 1 : 0,
-
-			val = 0;
-
-		for ( ; i < 4; i += 2 ) {
-
-			// Both box models exclude margin, so add it if we want it
-			if ( extra === "margin" ) {
-				val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
-			}
-
-			if ( isBorderBox ) {
-
-				// border-box includes padding, so remove it if we want content
-				if ( extra === "content" ) {
-					val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-				}
-
-				// At this point, extra isn't border nor margin, so remove border
-				if ( extra !== "margin" ) {
-					val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-				}
-			} else {
-
-				// At this point, extra isn't content, so add padding
-				val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
-				// At this point, extra isn't content nor padding, so add border
-				if ( extra !== "padding" ) {
-					val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-				}
-			}
-		}
-
-		return val;
-	}
-
-	function getWidthOrHeight( elem, name, extra ) {
-
-		// Start with offset property, which is equivalent to the border-box value
-		var valueIsBorderBox = true,
-			val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
-			styles = getStyles( elem ),
-			isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
-		// Some non-html elements return undefined for offsetWidth, so check for null/undefined
-		// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
-		// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
-		if ( val <= 0 || val == null ) {
-
-			// Fall back to computed then uncomputed css if necessary
-			val = curCSS( elem, name, styles );
-			if ( val < 0 || val == null ) {
-				val = elem.style[ name ];
-			}
-
-			// Computed unit is not pixels. Stop here and return.
-			if ( rnumnonpx.test( val ) ) {
-				return val;
-			}
-
-			// Check for style in case a browser which returns unreliable values
-			// for getComputedStyle silently falls back to the reliable elem.style
-			valueIsBorderBox = isBorderBox &&
-				( support.boxSizingReliable() || val === elem.style[ name ] );
-
-			// Normalize "", auto, and prepare for extra
-			val = parseFloat( val ) || 0;
-		}
-
-		// Use the active box-sizing model to add/subtract irrelevant styles
-		return ( val +
-			augmentWidthOrHeight(
-				elem,
-				name,
-				extra || ( isBorderBox ? "border" : "content" ),
-				valueIsBorderBox,
-				styles
-			)
-		) + "px";
-	}
-
-	function showHide( elements, show ) {
-		var display, elem, hidden,
-			values = [],
-			index = 0,
-			length = elements.length;
-
-		for ( ; index < length; index++ ) {
-			elem = elements[ index ];
-			if ( !elem.style ) {
-				continue;
-			}
-
-			values[ index ] = dataPriv.get( elem, "olddisplay" );
-			display = elem.style.display;
-			if ( show ) {
-
-				// Reset the inline display of this element to learn if it is
-				// being hidden by cascaded rules or not
-				if ( !values[ index ] && display === "none" ) {
-					elem.style.display = "";
-				}
-
-				// Set elements which have been overridden with display: none
-				// in a stylesheet to whatever the default browser style is
-				// for such an element
-				if ( elem.style.display === "" && isHidden( elem ) ) {
-					values[ index ] = dataPriv.access(
-						elem,
-						"olddisplay",
-						defaultDisplay( elem.nodeName )
-					);
-				}
-			} else {
-				hidden = isHidden( elem );
-
-				if ( display !== "none" || !hidden ) {
-					dataPriv.set(
-						elem,
-						"olddisplay",
-						hidden ? display : jQuery.css( elem, "display" )
-					);
-				}
-			}
-		}
-
-		// Set the display of most of the elements in a second loop
-		// to avoid the constant reflow
-		for ( index = 0; index < length; index++ ) {
-			elem = elements[ index ];
-			if ( !elem.style ) {
-				continue;
-			}
-			if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
-				elem.style.display = show ? values[ index ] || "" : "none";
-			}
-		}
-
-		return elements;
-	}
-
-	jQuery.extend( {
-
-		// Add in style property hooks for overriding the default
-		// behavior of getting and setting a style property
-		cssHooks: {
-			opacity: {
-				get: function( elem, computed ) {
-					if ( computed ) {
-
-						// We should always get a number back from opacity
-						var ret = curCSS( elem, "opacity" );
-						return ret === "" ? "1" : ret;
-					}
-				}
-			}
-		},
-
-		// Don't automatically add "px" to these possibly-unitless properties
-		cssNumber: {
-			"animationIterationCount": true,
-			"columnCount": true,
-			"fillOpacity": true,
-			"flexGrow": true,
-			"flexShrink": true,
-			"fontWeight": true,
-			"lineHeight": true,
-			"opacity": true,
-			"order": true,
-			"orphans": true,
-			"widows": true,
-			"zIndex": true,
-			"zoom": true
-		},
-
-		// Add in properties whose names you wish to fix before
-		// setting or getting the value
-		cssProps: {
-			"float": "cssFloat"
-		},
-
-		// Get and set the style property on a DOM Node
-		style: function( elem, name, value, extra ) {
-
-			// Don't set styles on text and comment nodes
-			if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-				return;
-			}
-
-			// Make sure that we're working with the right name
-			var ret, type, hooks,
-				origName = jQuery.camelCase( name ),
-				style = elem.style;
-
-			name = jQuery.cssProps[ origName ] ||
-				( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
-
-			// Gets hook for the prefixed version, then unprefixed version
-			hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-			// Check if we're setting a value
-			if ( value !== undefined ) {
-				type = typeof value;
-
-				// Convert "+=" or "-=" to relative numbers (#7345)
-				if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
-					value = adjustCSS( elem, name, ret );
-
-					// Fixes bug #9237
-					type = "number";
-				}
-
-				// Make sure that null and NaN values aren't set (#7116)
-				if ( value == null || value !== value ) {
-					return;
-				}
-
-				// If a number was passed in, add the unit (except for certain CSS properties)
-				if ( type === "number" ) {
-					value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
-				}
-
-				// Support: IE9-11+
-				// background-* props affect original clone's values
-				if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
-					style[ name ] = "inherit";
-				}
-
-				// If a hook was provided, use that value, otherwise just set the specified value
-				if ( !hooks || !( "set" in hooks ) ||
-					( value = hooks.set( elem, value, extra ) ) !== undefined ) {
-
-					style[ name ] = value;
-				}
-
-			} else {
-
-				// If a hook was provided get the non-computed value from there
-				if ( hooks && "get" in hooks &&
-					( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
-
-					return ret;
-				}
-
-				// Otherwise just get the value from the style object
-				return style[ name ];
-			}
-		},
-
-		css: function( elem, name, extra, styles ) {
-			var val, num, hooks,
-				origName = jQuery.camelCase( name );
-
-			// Make sure that we're working with the right name
-			name = jQuery.cssProps[ origName ] ||
-				( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
-
-			// Try prefixed name followed by the unprefixed name
-			hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-			// If a hook was provided get the computed value from there
-			if ( hooks && "get" in hooks ) {
-				val = hooks.get( elem, true, extra );
-			}
-
-			// Otherwise, if a way to get the computed value exists, use that
-			if ( val === undefined ) {
-				val = curCSS( elem, name, styles );
-			}
-
-			// Convert "normal" to computed value
-			if ( val === "normal" && name in cssNormalTransform ) {
-				val = cssNormalTransform[ name ];
-			}
-
-			// Make numeric if forced or a qualifier was provided and val looks numeric
-			if ( extra === "" || extra ) {
-				num = parseFloat( val );
-				return extra === true || isFinite( num ) ? num || 0 : val;
-			}
-			return val;
-		}
-	} );
-
-	jQuery.each( [ "height", "width" ], function( i, name ) {
-		jQuery.cssHooks[ name ] = {
-			get: function( elem, computed, extra ) {
-				if ( computed ) {
-
-					// Certain elements can have dimension info if we invisibly show them
-					// but it must have a current display style that would benefit
-					return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
-						elem.offsetWidth === 0 ?
-							swap( elem, cssShow, function() {
-								return getWidthOrHeight( elem, name, extra );
-							} ) :
-							getWidthOrHeight( elem, name, extra );
-				}
-			},
-
-			set: function( elem, value, extra ) {
-				var matches,
-					styles = extra && getStyles( elem ),
-					subtract = extra && augmentWidthOrHeight(
-						elem,
-						name,
-						extra,
-						jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-						styles
-					);
-
-				// Convert to pixels if value adjustment is needed
-				if ( subtract && ( matches = rcssNum.exec( value ) ) &&
-					( matches[ 3 ] || "px" ) !== "px" ) {
-
-					elem.style[ name ] = value;
-					value = jQuery.css( elem, name );
-				}
-
-				return setPositiveNumber( elem, value, subtract );
-			}
-		};
-	} );
-
-	jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
-		function( elem, computed ) {
-			if ( computed ) {
-				return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
-					elem.getBoundingClientRect().left -
-						swap( elem, { marginLeft: 0 }, function() {
-							return elem.getBoundingClientRect().left;
-						} )
-					) + "px";
-			}
-		}
-	);
-
-	// Support: Android 2.3
-	jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
-		function( elem, computed ) {
-			if ( computed ) {
-				return swap( elem, { "display": "inline-block" },
-					curCSS, [ elem, "marginRight" ] );
-			}
-		}
-	);
-
-	// These hooks are used by animate to expand properties
-	jQuery.each( {
-		margin: "",
-		padding: "",
-		border: "Width"
-	}, function( prefix, suffix ) {
-		jQuery.cssHooks[ prefix + suffix ] = {
-			expand: function( value ) {
-				var i = 0,
-					expanded = {},
-
-					// Assumes a single number if not a string
-					parts = typeof value === "string" ? value.split( " " ) : [ value ];
-
-				for ( ; i < 4; i++ ) {
-					expanded[ prefix + cssExpand[ i ] + suffix ] =
-						parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-				}
-
-				return expanded;
-			}
-		};
-
-		if ( !rmargin.test( prefix ) ) {
-			jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
-		}
-	} );
-
-	jQuery.fn.extend( {
-		css: function( name, value ) {
-			return access( this, function( elem, name, value ) {
-				var styles, len,
-					map = {},
-					i = 0;
-
-				if ( jQuery.isArray( name ) ) {
-					styles = getStyles( elem );
-					len = name.length;
-
-					for ( ; i < len; i++ ) {
-						map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
-					}
-
-					return map;
-				}
-
-				return value !== undefined ?
-					jQuery.style( elem, name, value ) :
-					jQuery.css( elem, name );
-			}, name, value, arguments.length > 1 );
-		},
-		show: function() {
-			return showHide( this, true );
-		},
-		hide: function() {
-			return showHide( this );
-		},
-		toggle: function( state ) {
-			if ( typeof state === "boolean" ) {
-				return state ? this.show() : this.hide();
-			}
-
-			return this.each( function() {
-				if ( isHidden( this ) ) {
-					jQuery( this ).show();
-				} else {
-					jQuery( this ).hide();
-				}
-			} );
-		}
-	} );
-
-
-	function Tween( elem, options, prop, end, easing ) {
-		return new Tween.prototype.init( elem, options, prop, end, easing );
-	}
-	jQuery.Tween = Tween;
-
-	Tween.prototype = {
-		constructor: Tween,
-		init: function( elem, options, prop, end, easing, unit ) {
-			this.elem = elem;
-			this.prop = prop;
-			this.easing = easing || jQuery.easing._default;
-			this.options = options;
-			this.start = this.now = this.cur();
-			this.end = end;
-			this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-		},
-		cur: function() {
-			var hooks = Tween.propHooks[ this.prop ];
-
-			return hooks && hooks.get ?
-				hooks.get( this ) :
-				Tween.propHooks._default.get( this );
-		},
-		run: function( percent ) {
-			var eased,
-				hooks = Tween.propHooks[ this.prop ];
-
-			if ( this.options.duration ) {
-				this.pos = eased = jQuery.easing[ this.easing ](
-					percent, this.options.duration * percent, 0, 1, this.options.duration
-				);
-			} else {
-				this.pos = eased = percent;
-			}
-			this.now = ( this.end - this.start ) * eased + this.start;
-
-			if ( this.options.step ) {
-				this.options.step.call( this.elem, this.now, this );
-			}
-
-			if ( hooks && hooks.set ) {
-				hooks.set( this );
-			} else {
-				Tween.propHooks._default.set( this );
-			}
-			return this;
-		}
-	};
-
-	Tween.prototype.init.prototype = Tween.prototype;
-
-	Tween.propHooks = {
-		_default: {
-			get: function( tween ) {
-				var result;
-
-				// Use a property on the element directly when it is not a DOM element,
-				// or when there is no matching style property that exists.
-				if ( tween.elem.nodeType !== 1 ||
-					tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
-					return tween.elem[ tween.prop ];
-				}
-
-				// Passing an empty string as a 3rd parameter to .css will automatically
-				// attempt a parseFloat and fallback to a string if the parse fails.
-				// Simple values such as "10px" are parsed to Float;
-				// complex values such as "rotate(1rad)" are returned as-is.
-				result = jQuery.css( tween.elem, tween.prop, "" );
-
-				// Empty strings, null, undefined and "auto" are converted to 0.
-				return !result || result === "auto" ? 0 : result;
-			},
-			set: function( tween ) {
-
-				// Use step hook for back compat.
-				// Use cssHook if its there.
-				// Use .style if available and use plain properties where available.
-				if ( jQuery.fx.step[ tween.prop ] ) {
-					jQuery.fx.step[ tween.prop ]( tween );
-				} else if ( tween.elem.nodeType === 1 &&
-					( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
-						jQuery.cssHooks[ tween.prop ] ) ) {
-					jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
-				} else {
-					tween.elem[ tween.prop ] = tween.now;
-				}
-			}
-		}
-	};
-
-	// Support: IE9
-	// Panic based approach to setting things on disconnected nodes
-	Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
-		set: function( tween ) {
-			if ( tween.elem.nodeType && tween.elem.parentNode ) {
-				tween.elem[ tween.prop ] = tween.now;
-			}
-		}
-	};
-
-	jQuery.easing = {
-		linear: function( p ) {
-			return p;
-		},
-		swing: function( p ) {
-			return 0.5 - Math.cos( p * Math.PI ) / 2;
-		},
-		_default: "swing"
-	};
-
-	jQuery.fx = Tween.prototype.init;
-
-	// Back Compat <1.8 extension point
-	jQuery.fx.step = {};
-
-
-
-
-	var
-		fxNow, timerId,
-		rfxtypes = /^(?:toggle|show|hide)$/,
-		rrun = /queueHooks$/;
-
-	// Animations created synchronously will run synchronously
-	function createFxNow() {
-		window.setTimeout( function() {
-			fxNow = undefined;
-		} );
-		return ( fxNow = jQuery.now() );
-	}
-
-	// Generate parameters to create a standard animation
-	function genFx( type, includeWidth ) {
-		var which,
-			i = 0,
-			attrs = { height: type };
-
-		// If we include width, step value is 1 to do all cssExpand values,
-		// otherwise step value is 2 to skip over Left and Right
-		includeWidth = includeWidth ? 1 : 0;
-		for ( ; i < 4 ; i += 2 - includeWidth ) {
-			which = cssExpand[ i ];
-			attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
-		}
-
-		if ( includeWidth ) {
-			attrs.opacity = attrs.width = type;
-		}
-
-		return attrs;
-	}
-
-	function createTween( value, prop, animation ) {
-		var tween,
-			collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
-			index = 0,
-			length = collection.length;
-		for ( ; index < length; index++ ) {
-			if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
-
-				// We're done with this property
-				return tween;
-			}
-		}
-	}
-
-	function defaultPrefilter( elem, props, opts ) {
-		/* jshint validthis: true */
-		var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
-			anim = this,
-			orig = {},
-			style = elem.style,
-			hidden = elem.nodeType && isHidden( elem ),
-			dataShow = dataPriv.get( elem, "fxshow" );
-
-		// Handle queue: false promises
-		if ( !opts.queue ) {
-			hooks = jQuery._queueHooks( elem, "fx" );
-			if ( hooks.unqueued == null ) {
-				hooks.unqueued = 0;
-				oldfire = hooks.empty.fire;
-				hooks.empty.fire = function() {
-					if ( !hooks.unqueued ) {
-						oldfire();
-					}
-				};
-			}
-			hooks.unqueued++;
-
-			anim.always( function() {
-
-				// Ensure the complete handler is called before this completes
-				anim.always( function() {
-					hooks.unqueued--;
-					if ( !jQuery.queue( elem, "fx" ).length ) {
-						hooks.empty.fire();
-					}
-				} );
-			} );
-		}
-
-		// Height/width overflow pass
-		if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
-
-			// Make sure that nothing sneaks out
-			// Record all 3 overflow attributes because IE9-10 do not
-			// change the overflow attribute when overflowX and
-			// overflowY are set to the same value
-			opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
-
-			// Set display property to inline-block for height/width
-			// animations on inline elements that are having width/height animated
-			display = jQuery.css( elem, "display" );
-
-			// Test default display if display is currently "none"
-			checkDisplay = display === "none" ?
-				dataPriv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;
-
-			if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
-				style.display = "inline-block";
-			}
-		}
-
-		if ( opts.overflow ) {
-			style.overflow = "hidden";
-			anim.always( function() {
-				style.overflow = opts.overflow[ 0 ];
-				style.overflowX = opts.overflow[ 1 ];
-				style.overflowY = opts.overflow[ 2 ];
-			} );
-		}
-
-		// show/hide pass
-		for ( prop in props ) {
-			value = props[ prop ];
-			if ( rfxtypes.exec( value ) ) {
-				delete props[ prop ];
-				toggle = toggle || value === "toggle";
-				if ( value === ( hidden ? "hide" : "show" ) ) {
-
-					// If there is dataShow left over from a stopped hide or show
-					// and we are going to proceed with show, we should pretend to be hidden
-					if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
-						hidden = true;
-					} else {
-						continue;
-					}
-				}
-				orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
-
-			// Any non-fx value stops us from restoring the original display value
-			} else {
-				display = undefined;
-			}
-		}
-
-		if ( !jQuery.isEmptyObject( orig ) ) {
-			if ( dataShow ) {
-				if ( "hidden" in dataShow ) {
-					hidden = dataShow.hidden;
-				}
-			} else {
-				dataShow = dataPriv.access( elem, "fxshow", {} );
-			}
-
-			// Store state if its toggle - enables .stop().toggle() to "reverse"
-			if ( toggle ) {
-				dataShow.hidden = !hidden;
-			}
-			if ( hidden ) {
-				jQuery( elem ).show();
-			} else {
-				anim.done( function() {
-					jQuery( elem ).hide();
-				} );
-			}
-			anim.done( function() {
-				var prop;
-
-				dataPriv.remove( elem, "fxshow" );
-				for ( prop in orig ) {
-					jQuery.style( elem, prop, orig[ prop ] );
-				}
-			} );
-			for ( prop in orig ) {
-				tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
-
-				if ( !( prop in dataShow ) ) {
-					dataShow[ prop ] = tween.start;
-					if ( hidden ) {
-						tween.end = tween.start;
-						tween.start = prop === "width" || prop === "height" ? 1 : 0;
-					}
-				}
-			}
-
-		// If this is a noop like .hide().hide(), restore an overwritten display value
-		} else if ( ( display === "none" ? defaultDisplay( elem.nodeName ) : display ) === "inline" ) {
-			style.display = display;
-		}
-	}
-
-	function propFilter( props, specialEasing ) {
-		var index, name, easing, value, hooks;
-
-		// camelCase, specialEasing and expand cssHook pass
-		for ( index in props ) {
-			name = jQuery.camelCase( index );
-			easing = specialEasing[ name ];
-			value = props[ index ];
-			if ( jQuery.isArray( value ) ) {
-				easing = value[ 1 ];
-				value = props[ index ] = value[ 0 ];
-			}
-
-			if ( index !== name ) {
-				props[ name ] = value;
-				delete props[ index ];
-			}
-
-			hooks = jQuery.cssHooks[ name ];
-			if ( hooks && "expand" in hooks ) {
-				value = hooks.expand( value );
-				delete props[ name ];
-
-				// Not quite $.extend, this won't overwrite existing keys.
-				// Reusing 'index' because we have the correct "name"
-				for ( index in value ) {
-					if ( !( index in props ) ) {
-						props[ index ] = value[ index ];
-						specialEasing[ index ] = easing;
-					}
-				}
-			} else {
-				specialEasing[ name ] = easing;
-			}
-		}
-	}
-
-	function Animation( elem, properties, options ) {
-		var result,
-			stopped,
-			index = 0,
-			length = Animation.prefilters.length,
-			deferred = jQuery.Deferred().always( function() {
-
-				// Don't match elem in the :animated selector
-				delete tick.elem;
-			} ),
-			tick = function() {
-				if ( stopped ) {
-					return false;
-				}
-				var currentTime = fxNow || createFxNow(),
-					remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
-
-					// Support: Android 2.3
-					// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
-					temp = remaining / animation.duration || 0,
-					percent = 1 - temp,
-					index = 0,
-					length = animation.tweens.length;
-
-				for ( ; index < length ; index++ ) {
-					animation.tweens[ index ].run( percent );
-				}
-
-				deferred.notifyWith( elem, [ animation, percent, remaining ] );
-
-				if ( percent < 1 && length ) {
-					return remaining;
-				} else {
-					deferred.resolveWith( elem, [ animation ] );
-					return false;
-				}
-			},
-			animation = deferred.promise( {
-				elem: elem,
-				props: jQuery.extend( {}, properties ),
-				opts: jQuery.extend( true, {
-					specialEasing: {},
-					easing: jQuery.easing._default
-				}, options ),
-				originalProperties: properties,
-				originalOptions: options,
-				startTime: fxNow || createFxNow(),
-				duration: options.duration,
-				tweens: [],
-				createTween: function( prop, end ) {
-					var tween = jQuery.Tween( elem, animation.opts, prop, end,
-							animation.opts.specialEasing[ prop ] || animation.opts.easing );
-					animation.tweens.push( tween );
-					return tween;
-				},
-				stop: function( gotoEnd ) {
-					var index = 0,
-
-						// If we are going to the end, we want to run all the tweens
-						// otherwise we skip this part
-						length = gotoEnd ? animation.tweens.length : 0;
-					if ( stopped ) {
-						return this;
-					}
-					stopped = true;
-					for ( ; index < length ; index++ ) {
-						animation.tweens[ index ].run( 1 );
-					}
-
-					// Resolve when we played the last frame; otherwise, reject
-					if ( gotoEnd ) {
-						deferred.notifyWith( elem, [ animation, 1, 0 ] );
-						deferred.resolveWith( elem, [ animation, gotoEnd ] );
-					} else {
-						deferred.rejectWith( elem, [ animation, gotoEnd ] );
-					}
-					return this;
-				}
-			} ),
-			props = animation.props;
-
-		propFilter( props, animation.opts.specialEasing );
-
-		for ( ; index < length ; index++ ) {
-			result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
-			if ( result ) {
-				if ( jQuery.isFunction( result.stop ) ) {
-					jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
-						jQuery.proxy( result.stop, result );
-				}
-				return result;
-			}
-		}
-
-		jQuery.map( props, createTween, animation );
-
-		if ( jQuery.isFunction( animation.opts.start ) ) {
-			animation.opts.start.call( elem, animation );
-		}
-
-		jQuery.fx.timer(
-			jQuery.extend( tick, {
-				elem: elem,
-				anim: animation,
-				queue: animation.opts.queue
-			} )
-		);
-
-		// attach callbacks from options
-		return animation.progress( animation.opts.progress )
-			.done( animation.opts.done, animation.opts.complete )
-			.fail( animation.opts.fail )
-			.always( animation.opts.always );
-	}
-
-	jQuery.Animation = jQuery.extend( Animation, {
-		tweeners: {
-			"*": [ function( prop, value ) {
-				var tween = this.createTween( prop, value );
-				adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
-				return tween;
-			} ]
-		},
-
-		tweener: function( props, callback ) {
-			if ( jQuery.isFunction( props ) ) {
-				callback = props;
-				props = [ "*" ];
-			} else {
-				props = props.match( rnotwhite );
-			}
-
-			var prop,
-				index = 0,
-				length = props.length;
-
-			for ( ; index < length ; index++ ) {
-				prop = props[ index ];
-				Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
-				Animation.tweeners[ prop ].unshift( callback );
-			}
-		},
-
-		prefilters: [ defaultPrefilter ],
-
-		prefilter: function( callback, prepend ) {
-			if ( prepend ) {
-				Animation.prefilters.unshift( callback );
-			} else {
-				Animation.prefilters.push( callback );
-			}
-		}
-	} );
-
-	jQuery.speed = function( speed, easing, fn ) {
-		var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-			complete: fn || !fn && easing ||
-				jQuery.isFunction( speed ) && speed,
-			duration: speed,
-			easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
-		};
-
-		opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ?
-			opt.duration : opt.duration in jQuery.fx.speeds ?
-				jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
-
-		// Normalize opt.queue - true/undefined/null -> "fx"
-		if ( opt.queue == null || opt.queue === true ) {
-			opt.queue = "fx";
-		}
-
-		// Queueing
-		opt.old = opt.complete;
-
-		opt.complete = function() {
-			if ( jQuery.isFunction( opt.old ) ) {
-				opt.old.call( this );
-			}
-
-			if ( opt.queue ) {
-				jQuery.dequeue( this, opt.queue );
-			}
-		};
-
-		return opt;
-	};
-
-	jQuery.fn.extend( {
-		fadeTo: function( speed, to, easing, callback ) {
-
-			// Show any hidden elements after setting opacity to 0
-			return this.filter( isHidden ).css( "opacity", 0 ).show()
-
-				// Animate to the value specified
-				.end().animate( { opacity: to }, speed, easing, callback );
-		},
-		animate: function( prop, speed, easing, callback ) {
-			var empty = jQuery.isEmptyObject( prop ),
-				optall = jQuery.speed( speed, easing, callback ),
-				doAnimation = function() {
-
-					// Operate on a copy of prop so per-property easing won't be lost
-					var anim = Animation( this, jQuery.extend( {}, prop ), optall );
-
-					// Empty animations, or finishing resolves immediately
-					if ( empty || dataPriv.get( this, "finish" ) ) {
-						anim.stop( true );
-					}
-				};
-				doAnimation.finish = doAnimation;
-
-			return empty || optall.queue === false ?
-				this.each( doAnimation ) :
-				this.queue( optall.queue, doAnimation );
-		},
-		stop: function( type, clearQueue, gotoEnd ) {
-			var stopQueue = function( hooks ) {
-				var stop = hooks.stop;
-				delete hooks.stop;
-				stop( gotoEnd );
-			};
-
-			if ( typeof type !== "string" ) {
-				gotoEnd = clearQueue;
-				clearQueue = type;
-				type = undefined;
-			}
-			if ( clearQueue && type !== false ) {
-				this.queue( type || "fx", [] );
-			}
-
-			return this.each( function() {
-				var dequeue = true,
-					index = type != null && type + "queueHooks",
-					timers = jQuery.timers,
-					data = dataPriv.get( this );
-
-				if ( index ) {
-					if ( data[ index ] && data[ index ].stop ) {
-						stopQueue( data[ index ] );
-					}
-				} else {
-					for ( index in data ) {
-						if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
-							stopQueue( data[ index ] );
-						}
-					}
-				}
-
-				for ( index = timers.length; index--; ) {
-					if ( timers[ index ].elem === this &&
-						( type == null || timers[ index ].queue === type ) ) {
-
-						timers[ index ].anim.stop( gotoEnd );
-						dequeue = false;
-						timers.splice( index, 1 );
-					}
-				}
-
-				// Start the next in the queue if the last step wasn't forced.
-				// Timers currently will call their complete callbacks, which
-				// will dequeue but only if they were gotoEnd.
-				if ( dequeue || !gotoEnd ) {
-					jQuery.dequeue( this, type );
-				}
-			} );
-		},
-		finish: function( type ) {
-			if ( type !== false ) {
-				type = type || "fx";
-			}
-			return this.each( function() {
-				var index,
-					data = dataPriv.get( this ),
-					queue = data[ type + "queue" ],
-					hooks = data[ type + "queueHooks" ],
-					timers = jQuery.timers,
-					length = queue ? queue.length : 0;
-
-				// Enable finishing flag on private data
-				data.finish = true;
-
-				// Empty the queue first
-				jQuery.queue( this, type, [] );
-
-				if ( hooks && hooks.stop ) {
-					hooks.stop.call( this, true );
-				}
-
-				// Look for any active animations, and finish them
-				for ( index = timers.length; index--; ) {
-					if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
-						timers[ index ].anim.stop( true );
-						timers.splice( index, 1 );
-					}
-				}
-
-				// Look for any animations in the old queue and finish them
-				for ( index = 0; index < length; index++ ) {
-					if ( queue[ index ] && queue[ index ].finish ) {
-						queue[ index ].finish.call( this );
-					}
-				}
-
-				// Turn off finishing flag
-				delete data.finish;
-			} );
-		}
-	} );
-
-	jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
-		var cssFn = jQuery.fn[ name ];
-		jQuery.fn[ name ] = function( speed, easing, callback ) {
-			return speed == null || typeof speed === "boolean" ?
-				cssFn.apply( this, arguments ) :
-				this.animate( genFx( name, true ), speed, easing, callback );
-		};
-	} );
-
-	// Generate shortcuts for custom animations
-	jQuery.each( {
-		slideDown: genFx( "show" ),
-		slideUp: genFx( "hide" ),
-		slideToggle: genFx( "toggle" ),
-		fadeIn: { opacity: "show" },
-		fadeOut: { opacity: "hide" },
-		fadeToggle: { opacity: "toggle" }
-	}, function( name, props ) {
-		jQuery.fn[ name ] = function( speed, easing, callback ) {
-			return this.animate( props, speed, easing, callback );
-		};
-	} );
-
-	jQuery.timers = [];
-	jQuery.fx.tick = function() {
-		var timer,
-			i = 0,
-			timers = jQuery.timers;
-
-		fxNow = jQuery.now();
-
-		for ( ; i < timers.length; i++ ) {
-			timer = timers[ i ];
-
-			// Checks the timer has not already been removed
-			if ( !timer() && timers[ i ] === timer ) {
-				timers.splice( i--, 1 );
-			}
-		}
-
-		if ( !timers.length ) {
-			jQuery.fx.stop();
-		}
-		fxNow = undefined;
-	};
-
-	jQuery.fx.timer = function( timer ) {
-		jQuery.timers.push( timer );
-		if ( timer() ) {
-			jQuery.fx.start();
-		} else {
-			jQuery.timers.pop();
-		}
-	};
-
-	jQuery.fx.interval = 13;
-	jQuery.fx.start = function() {
-		if ( !timerId ) {
-			timerId = window.setInterval( jQuery.fx.tick, jQuery.fx.interval );
-		}
-	};
-
-	jQuery.fx.stop = function() {
-		window.clearInterval( timerId );
-
-		timerId = null;
-	};
-
-	jQuery.fx.speeds = {
-		slow: 600,
-		fast: 200,
-
-		// Default speed
-		_default: 400
-	};
-
-
-	// Based off of the plugin by Clint Helfers, with permission.
-	// http://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
-	jQuery.fn.delay = function( time, type ) {
-		time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-		type = type || "fx";
-
-		return this.queue( type, function( next, hooks ) {
-			var timeout = window.setTimeout( next, time );
-			hooks.stop = function() {
-				window.clearTimeout( timeout );
-			};
-		} );
-	};
-
-
-	( function() {
-		var input = document.createElement( "input" ),
-			select = document.createElement( "select" ),
-			opt = select.appendChild( document.createElement( "option" ) );
-
-		input.type = "checkbox";
-
-		// Support: iOS<=5.1, Android<=4.2+
-		// Default value for a checkbox should be "on"
-		support.checkOn = input.value !== "";
-
-		// Support: IE<=11+
-		// Must access selectedIndex to make default options select
-		support.optSelected = opt.selected;
-
-		// Support: Android<=2.3
-		// Options inside disabled selects are incorrectly marked as disabled
-		select.disabled = true;
-		support.optDisabled = !opt.disabled;
-
-		// Support: IE<=11+
-		// An input loses its value after becoming a radio
-		input = document.createElement( "input" );
-		input.value = "t";
-		input.type = "radio";
-		support.radioValue = input.value === "t";
-	} )();
-
-
-	var boolHook,
-		attrHandle = jQuery.expr.attrHandle;
-
-	jQuery.fn.extend( {
-		attr: function( name, value ) {
-			return access( this, jQuery.attr, name, value, arguments.length > 1 );
-		},
-
-		removeAttr: function( name ) {
-			return this.each( function() {
-				jQuery.removeAttr( this, name );
-			} );
-		}
-	} );
-
-	jQuery.extend( {
-		attr: function( elem, name, value ) {
-			var ret, hooks,
-				nType = elem.nodeType;
-
-			// Don't get/set attributes on text, comment and attribute nodes
-			if ( nType === 3 || nType === 8 || nType === 2 ) {
-				return;
-			}
-
-			// Fallback to prop when attributes are not supported
-			if ( typeof elem.getAttribute === "undefined" ) {
-				return jQuery.prop( elem, name, value );
-			}
-
-			// All attributes are lowercase
-			// Grab necessary hook if one is defined
-			if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
-				name = name.toLowerCase();
-				hooks = jQuery.attrHooks[ name ] ||
-					( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
-			}
-
-			if ( value !== undefined ) {
-				if ( value === null ) {
-					jQuery.removeAttr( elem, name );
-					return;
-				}
-
-				if ( hooks && "set" in hooks &&
-					( ret = hooks.set( elem, value, name ) ) !== undefined ) {
-					return ret;
-				}
-
-				elem.setAttribute( name, value + "" );
-				return value;
-			}
-
-			if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
-				return ret;
-			}
-
-			ret = jQuery.find.attr( elem, name );
-
-			// Non-existent attributes return null, we normalize to undefined
-			return ret == null ? undefined : ret;
-		},
-
-		attrHooks: {
-			type: {
-				set: function( elem, value ) {
-					if ( !support.radioValue && value === "radio" &&
-						jQuery.nodeName( elem, "input" ) ) {
-						var val = elem.value;
-						elem.setAttribute( "type", value );
-						if ( val ) {
-							elem.value = val;
-						}
-						return value;
-					}
-				}
-			}
-		},
-
-		removeAttr: function( elem, value ) {
-			var name, propName,
-				i = 0,
-				attrNames = value && value.match( rnotwhite );
-
-			if ( attrNames && elem.nodeType === 1 ) {
-				while ( ( name = attrNames[ i++ ] ) ) {
-					propName = jQuery.propFix[ name ] || name;
-
-					// Boolean attributes get special treatment (#10870)
-					if ( jQuery.expr.match.bool.test( name ) ) {
-
-						// Set corresponding property to false
-						elem[ propName ] = false;
-					}
-
-					elem.removeAttribute( name );
-				}
-			}
-		}
-	} );
-
-	// Hooks for boolean attributes
-	boolHook = {
-		set: function( elem, value, name ) {
-			if ( value === false ) {
-
-				// Remove boolean attributes when set to false
-				jQuery.removeAttr( elem, name );
-			} else {
-				elem.setAttribute( name, name );
-			}
-			return name;
-		}
-	};
-	jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
-		var getter = attrHandle[ name ] || jQuery.find.attr;
-
-		attrHandle[ name ] = function( elem, name, isXML ) {
-			var ret, handle;
-			if ( !isXML ) {
-
-				// Avoid an infinite loop by temporarily removing this function from the getter
-				handle = attrHandle[ name ];
-				attrHandle[ name ] = ret;
-				ret = getter( elem, name, isXML ) != null ?
-					name.toLowerCase() :
-					null;
-				attrHandle[ name ] = handle;
-			}
-			return ret;
-		};
-	} );
-
-
-
-
-	var rfocusable = /^(?:input|select|textarea|button)$/i,
-		rclickable = /^(?:a|area)$/i;
-
-	jQuery.fn.extend( {
-		prop: function( name, value ) {
-			return access( this, jQuery.prop, name, value, arguments.length > 1 );
-		},
-
-		removeProp: function( name ) {
-			return this.each( function() {
-				delete this[ jQuery.propFix[ name ] || name ];
-			} );
-		}
-	} );
-
-	jQuery.extend( {
-		prop: function( elem, name, value ) {
-			var ret, hooks,
-				nType = elem.nodeType;
-
-			// Don't get/set properties on text, comment and attribute nodes
-			if ( nType === 3 || nType === 8 || nType === 2 ) {
-				return;
-			}
-
-			if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
-
-				// Fix name and attach hooks
-				name = jQuery.propFix[ name ] || name;
-				hooks = jQuery.propHooks[ name ];
-			}
-
-			if ( value !== undefined ) {
-				if ( hooks && "set" in hooks &&
-					( ret = hooks.set( elem, value, name ) ) !== undefined ) {
-					return ret;
-				}
-
-				return ( elem[ name ] = value );
-			}
-
-			if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
-				return ret;
-			}
-
-			return elem[ name ];
-		},
-
-		propHooks: {
-			tabIndex: {
-				get: function( elem ) {
-
-					// elem.tabIndex doesn't always return the
-					// correct value when it hasn't been explicitly set
-					// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
-					// Use proper attribute retrieval(#12072)
-					var tabindex = jQuery.find.attr( elem, "tabindex" );
-
-					return tabindex ?
-						parseInt( tabindex, 10 ) :
-						rfocusable.test( elem.nodeName ) ||
-							rclickable.test( elem.nodeName ) && elem.href ?
-								0 :
-								-1;
-				}
-			}
-		},
-
-		propFix: {
-			"for": "htmlFor",
-			"class": "className"
-		}
-	} );
-
-	// Support: IE <=11 only
-	// Accessing the selectedIndex property
-	// forces the browser to respect setting selected
-	// on the option
-	// The getter ensures a default option is selected
-	// when in an optgroup
-	if ( !support.optSelected ) {
-		jQuery.propHooks.selected = {
-			get: function( elem ) {
-				var parent = elem.parentNode;
-				if ( parent && parent.parentNode ) {
-					parent.parentNode.selectedIndex;
-				}
-				return null;
-			},
-			set: function( elem ) {
-				var parent = elem.parentNode;
-				if ( parent ) {
-					parent.selectedIndex;
-
-					if ( parent.parentNode ) {
-						parent.parentNode.selectedIndex;
-					}
-				}
-			}
-		};
-	}
-
-	jQuery.each( [
-		"tabIndex",
-		"readOnly",
-		"maxLength",
-		"cellSpacing",
-		"cellPadding",
-		"rowSpan",
-		"colSpan",
-		"useMap",
-		"frameBorder",
-		"contentEditable"
-	], function() {
-		jQuery.propFix[ this.toLowerCase() ] = this;
-	} );
-
-
-
-
-	var rclass = /[\t\r\n\f]/g;
-
-	function getClass( elem ) {
-		return elem.getAttribute && elem.getAttribute( "class" ) || "";
-	}
-
-	jQuery.fn.extend( {
-		addClass: function( value ) {
-			var classes, elem, cur, curValue, clazz, j, finalValue,
-				i = 0;
-
-			if ( jQuery.isFunction( value ) ) {
-				return this.each( function( j ) {
-					jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
-				} );
-			}
-
-			if ( typeof value === "string" && value ) {
-				classes = value.match( rnotwhite ) || [];
-
-				while ( ( elem = this[ i++ ] ) ) {
-					curValue = getClass( elem );
-					cur = elem.nodeType === 1 &&
-						( " " + curValue + " " ).replace( rclass, " " );
-
-					if ( cur ) {
-						j = 0;
-						while ( ( clazz = classes[ j++ ] ) ) {
-							if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-								cur += clazz + " ";
-							}
-						}
-
-						// Only assign if different to avoid unneeded rendering.
-						finalValue = jQuery.trim( cur );
-						if ( curValue !== finalValue ) {
-							elem.setAttribute( "class", finalValue );
-						}
-					}
-				}
-			}
-
-			return this;
-		},
-
-		removeClass: function( value ) {
-			var classes, elem, cur, curValue, clazz, j, finalValue,
-				i = 0;
-
-			if ( jQuery.isFunction( value ) ) {
-				return this.each( function( j ) {
-					jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
-				} );
-			}
-
-			if ( !arguments.length ) {
-				return this.attr( "class", "" );
-			}
-
-			if ( typeof value === "string" && value ) {
-				classes = value.match( rnotwhite ) || [];
-
-				while ( ( elem = this[ i++ ] ) ) {
-					curValue = getClass( elem );
-
-					// This expression is here for better compressibility (see addClass)
-					cur = elem.nodeType === 1 &&
-						( " " + curValue + " " ).replace( rclass, " " );
-
-					if ( cur ) {
-						j = 0;
-						while ( ( clazz = classes[ j++ ] ) ) {
-
-							// Remove *all* instances
-							while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
-								cur = cur.replace( " " + clazz + " ", " " );
-							}
-						}
-
-						// Only assign if different to avoid unneeded rendering.
-						finalValue = jQuery.trim( cur );
-						if ( curValue !== finalValue ) {
-							elem.setAttribute( "class", finalValue );
-						}
-					}
-				}
-			}
-
-			return this;
-		},
-
-		toggleClass: function( value, stateVal ) {
-			var type = typeof value;
-
-			if ( typeof stateVal === "boolean" && type === "string" ) {
-				return stateVal ? this.addClass( value ) : this.removeClass( value );
-			}
-
-			if ( jQuery.isFunction( value ) ) {
-				return this.each( function( i ) {
-					jQuery( this ).toggleClass(
-						value.call( this, i, getClass( this ), stateVal ),
-						stateVal
-					);
-				} );
-			}
-
-			return this.each( function() {
-				var className, i, self, classNames;
-
-				if ( type === "string" ) {
-
-					// Toggle individual class names
-					i = 0;
-					self = jQuery( this );
-					classNames = value.match( rnotwhite ) || [];
-
-					while ( ( className = classNames[ i++ ] ) ) {
-
-						// Check each className given, space separated list
-						if ( self.hasClass( className ) ) {
-							self.removeClass( className );
-						} else {
-							self.addClass( className );
-						}
-					}
-
-				// Toggle whole class name
-				} else if ( value === undefined || type === "boolean" ) {
-					className = getClass( this );
-					if ( className ) {
-
-						// Store className if set
-						dataPriv.set( this, "__className__", className );
-					}
-
-					// If the element has a class name or if we're passed `false`,
-					// then remove the whole classname (if there was one, the above saved it).
-					// Otherwise bring back whatever was previously saved (if anything),
-					// falling back to the empty string if nothing was stored.
-					if ( this.setAttribute ) {
-						this.setAttribute( "class",
-							className || value === false ?
-							"" :
-							dataPriv.get( this, "__className__" ) || ""
-						);
-					}
-				}
-			} );
-		},
-
-		hasClass: function( selector ) {
-			var className, elem,
-				i = 0;
-
-			className = " " + selector + " ";
-			while ( ( elem = this[ i++ ] ) ) {
-				if ( elem.nodeType === 1 &&
-					( " " + getClass( elem ) + " " ).replace( rclass, " " )
-						.indexOf( className ) > -1
-				) {
-					return true;
-				}
-			}
-
-			return false;
-		}
-	} );
-
-
-
-
-	var rreturn = /\r/g,
-		rspaces = /[\x20\t\r\n\f]+/g;
-
-	jQuery.fn.extend( {
-		val: function( value ) {
-			var hooks, ret, isFunction,
-				elem = this[ 0 ];
-
-			if ( !arguments.length ) {
-				if ( elem ) {
-					hooks = jQuery.valHooks[ elem.type ] ||
-						jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-					if ( hooks &&
-						"get" in hooks &&
-						( ret = hooks.get( elem, "value" ) ) !== undefined
-					) {
-						return ret;
-					}
-
-					ret = elem.value;
-
-					return typeof ret === "string" ?
-
-						// Handle most common string cases
-						ret.replace( rreturn, "" ) :
-
-						// Handle cases where value is null/undef or number
-						ret == null ? "" : ret;
-				}
-
-				return;
-			}
-
-			isFunction = jQuery.isFunction( value );
-
-			return this.each( function( i ) {
-				var val;
-
-				if ( this.nodeType !== 1 ) {
-					return;
-				}
-
-				if ( isFunction ) {
-					val = value.call( this, i, jQuery( this ).val() );
-				} else {
-					val = value;
-				}
-
-				// Treat null/undefined as ""; convert numbers to string
-				if ( val == null ) {
-					val = "";
-
-				} else if ( typeof val === "number" ) {
-					val += "";
-
-				} else if ( jQuery.isArray( val ) ) {
-					val = jQuery.map( val, function( value ) {
-						return value == null ? "" : value + "";
-					} );
-				}
-
-				hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-				// If set returns undefined, fall back to normal setting
-				if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
-					this.value = val;
-				}
-			} );
-		}
-	} );
-
-	jQuery.extend( {
-		valHooks: {
-			option: {
-				get: function( elem ) {
-
-					var val = jQuery.find.attr( elem, "value" );
-					return val != null ?
-						val :
-
-						// Support: IE10-11+
-						// option.text throws exceptions (#14686, #14858)
-						// Strip and collapse whitespace
-						// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
-						jQuery.trim( jQuery.text( elem ) ).replace( rspaces, " " );
-				}
-			},
-			select: {
-				get: function( elem ) {
-					var value, option,
-						options = elem.options,
-						index = elem.selectedIndex,
-						one = elem.type === "select-one" || index < 0,
-						values = one ? null : [],
-						max = one ? index + 1 : options.length,
-						i = index < 0 ?
-							max :
-							one ? index : 0;
-
-					// Loop through all the selected options
-					for ( ; i < max; i++ ) {
-						option = options[ i ];
-
-						// IE8-9 doesn't update selected after form reset (#2551)
-						if ( ( option.selected || i === index ) &&
-
-								// Don't return options that are disabled or in a disabled optgroup
-								( support.optDisabled ?
-									!option.disabled : option.getAttribute( "disabled" ) === null ) &&
-								( !option.parentNode.disabled ||
-									!jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
-
-							// Get the specific value for the option
-							value = jQuery( option ).val();
-
-							// We don't need an array for one selects
-							if ( one ) {
-								return value;
-							}
-
-							// Multi-Selects return an array
-							values.push( value );
-						}
-					}
-
-					return values;
-				},
-
-				set: function( elem, value ) {
-					var optionSet, option,
-						options = elem.options,
-						values = jQuery.makeArray( value ),
-						i = options.length;
-
-					while ( i-- ) {
-						option = options[ i ];
-						if ( option.selected =
-							jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
-						) {
-							optionSet = true;
-						}
-					}
-
-					// Force browsers to behave consistently when non-matching value is set
-					if ( !optionSet ) {
-						elem.selectedIndex = -1;
-					}
-					return values;
-				}
-			}
-		}
-	} );
-
-	// Radios and checkboxes getter/setter
-	jQuery.each( [ "radio", "checkbox" ], function() {
-		jQuery.valHooks[ this ] = {
-			set: function( elem, value ) {
-				if ( jQuery.isArray( value ) ) {
-					return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
-				}
-			}
-		};
-		if ( !support.checkOn ) {
-			jQuery.valHooks[ this ].get = function( elem ) {
-				return elem.getAttribute( "value" ) === null ? "on" : elem.value;
-			};
-		}
-	} );
-
-
-
-
-	// Return jQuery for attributes-only inclusion
-
-
-	var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
-
-	jQuery.extend( jQuery.event, {
-
-		trigger: function( event, data, elem, onlyHandlers ) {
-
-			var i, cur, tmp, bubbleType, ontype, handle, special,
-				eventPath = [ elem || document ],
-				type = hasOwn.call( event, "type" ) ? event.type : event,
-				namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
-
-			cur = tmp = elem = elem || document;
-
-			// Don't do events on text and comment nodes
-			if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
-				return;
-			}
-
-			// focus/blur morphs to focusin/out; ensure we're not firing them right now
-			if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-				return;
-			}
-
-			if ( type.indexOf( "." ) > -1 ) {
-
-				// Namespaced trigger; create a regexp to match event type in handle()
-				namespaces = type.split( "." );
-				type = namespaces.shift();
-				namespaces.sort();
-			}
-			ontype = type.indexOf( ":" ) < 0 && "on" + type;
-
-			// Caller can pass in a jQuery.Event object, Object, or just an event type string
-			event = event[ jQuery.expando ] ?
-				event :
-				new jQuery.Event( type, typeof event === "object" && event );
-
-			// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
-			event.isTrigger = onlyHandlers ? 2 : 3;
-			event.namespace = namespaces.join( "." );
-			event.rnamespace = event.namespace ?
-				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
-				null;
-
-			// Clean up the event in case it is being reused
-			event.result = undefined;
-			if ( !event.target ) {
-				event.target = elem;
-			}
-
-			// Clone any incoming data and prepend the event, creating the handler arg list
-			data = data == null ?
-				[ event ] :
-				jQuery.makeArray( data, [ event ] );
-
-			// Allow special events to draw outside the lines
-			special = jQuery.event.special[ type ] || {};
-			if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
-				return;
-			}
-
-			// Determine event propagation path in advance, per W3C events spec (#9951)
-			// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-			if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
-
-				bubbleType = special.delegateType || type;
-				if ( !rfocusMorph.test( bubbleType + type ) ) {
-					cur = cur.parentNode;
-				}
-				for ( ; cur; cur = cur.parentNode ) {
-					eventPath.push( cur );
-					tmp = cur;
-				}
-
-				// Only add window if we got to document (e.g., not plain obj or detached DOM)
-				if ( tmp === ( elem.ownerDocument || document ) ) {
-					eventPath.push( tmp.defaultView || tmp.parentWindow || window );
-				}
-			}
-
-			// Fire handlers on the event path
-			i = 0;
-			while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
-
-				event.type = i > 1 ?
-					bubbleType :
-					special.bindType || type;
-
-				// jQuery handler
-				handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
-					dataPriv.get( cur, "handle" );
-				if ( handle ) {
-					handle.apply( cur, data );
-				}
-
-				// Native handler
-				handle = ontype && cur[ ontype ];
-				if ( handle && handle.apply && acceptData( cur ) ) {
-					event.result = handle.apply( cur, data );
-					if ( event.result === false ) {
-						event.preventDefault();
-					}
-				}
-			}
-			event.type = type;
-
-			// If nobody prevented the default action, do it now
-			if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-				if ( ( !special._default ||
-					special._default.apply( eventPath.pop(), data ) === false ) &&
-					acceptData( elem ) ) {
-
-					// Call a native DOM method on the target with the same name name as the event.
-					// Don't do default actions on window, that's where global variables be (#6170)
-					if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
-
-						// Don't re-trigger an onFOO event when we call its FOO() method
-						tmp = elem[ ontype ];
-
-						if ( tmp ) {
-							elem[ ontype ] = null;
-						}
-
-						// Prevent re-triggering of the same event, since we already bubbled it above
-						jQuery.event.triggered = type;
-						elem[ type ]();
-						jQuery.event.triggered = undefined;
-
-						if ( tmp ) {
-							elem[ ontype ] = tmp;
-						}
-					}
-				}
-			}
-
-			return event.result;
-		},
-
-		// Piggyback on a donor event to simulate a different one
-		// Used only for `focus(in | out)` events
-		simulate: function( type, elem, event ) {
-			var e = jQuery.extend(
-				new jQuery.Event(),
-				event,
-				{
-					type: type,
-					isSimulated: true
-				}
-			);
-
-			jQuery.event.trigger( e, null, elem );
-		}
-
-	} );
-
-	jQuery.fn.extend( {
-
-		trigger: function( type, data ) {
-			return this.each( function() {
-				jQuery.event.trigger( type, data, this );
-			} );
-		},
-		triggerHandler: function( type, data ) {
-			var elem = this[ 0 ];
-			if ( elem ) {
-				return jQuery.event.trigger( type, data, elem, true );
-			}
-		}
-	} );
-
-
-	jQuery.each( ( "blur focus focusin focusout load resize scroll unload click dblclick " +
-		"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-		"change select submit keydown keypress keyup error contextmenu" ).split( " " ),
-		function( i, name ) {
-
-		// Handle event binding
-		jQuery.fn[ name ] = function( data, fn ) {
-			return arguments.length > 0 ?
-				this.on( name, null, data, fn ) :
-				this.trigger( name );
-		};
-	} );
-
-	jQuery.fn.extend( {
-		hover: function( fnOver, fnOut ) {
-			return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-		}
-	} );
-
-
-
-
-	support.focusin = "onfocusin" in window;
-
-
-	// Support: Firefox
-	// Firefox doesn't have focus(in | out) events
-	// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
-	//
-	// Support: Chrome, Safari
-	// focus(in | out) events fire after focus & blur events,
-	// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
-	// Related ticket - https://code.google.com/p/chromium/issues/detail?id=449857
-	if ( !support.focusin ) {
-		jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-			// Attach a single capturing handler on the document while someone wants focusin/focusout
-			var handler = function( event ) {
-				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
-			};
-
-			jQuery.event.special[ fix ] = {
-				setup: function() {
-					var doc = this.ownerDocument || this,
-						attaches = dataPriv.access( doc, fix );
-
-					if ( !attaches ) {
-						doc.addEventListener( orig, handler, true );
-					}
-					dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
-				},
-				teardown: function() {
-					var doc = this.ownerDocument || this,
-						attaches = dataPriv.access( doc, fix ) - 1;
-
-					if ( !attaches ) {
-						doc.removeEventListener( orig, handler, true );
-						dataPriv.remove( doc, fix );
-
-					} else {
-						dataPriv.access( doc, fix, attaches );
-					}
-				}
-			};
-		} );
-	}
-	var location = window.location;
-
-	var nonce = jQuery.now();
-
-	var rquery = ( /\?/ );
-
-
-
-	// Support: Android 2.3
-	// Workaround failure to string-cast null input
-	jQuery.parseJSON = function( data ) {
-		return JSON.parse( data + "" );
-	};
-
-
-	// Cross-browser xml parsing
-	jQuery.parseXML = function( data ) {
-		var xml;
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-
-		// Support: IE9
-		try {
-			xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
-		} catch ( e ) {
-			xml = undefined;
-		}
-
-		if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
-			jQuery.error( "Invalid XML: " + data );
-		}
-		return xml;
-	};
-
-
-	var
-		rhash = /#.*$/,
-		rts = /([?&])_=[^&]*/,
-		rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
-
-		// #7653, #8125, #8152: local protocol detection
-		rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
-		rnoContent = /^(?:GET|HEAD)$/,
-		rprotocol = /^\/\//,
-
-		/* Prefilters
-		 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
-		 * 2) These are called:
-		 *    - BEFORE asking for a transport
-		 *    - AFTER param serialization (s.data is a string if s.processData is true)
-		 * 3) key is the dataType
-		 * 4) the catchall symbol "*" can be used
-		 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
-		 */
-		prefilters = {},
-
-		/* Transports bindings
-		 * 1) key is the dataType
-		 * 2) the catchall symbol "*" can be used
-		 * 3) selection will start with transport dataType and THEN go to "*" if needed
-		 */
-		transports = {},
-
-		// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
-		allTypes = "*/".concat( "*" ),
-
-		// Anchor tag for parsing the document origin
-		originAnchor = document.createElement( "a" );
-		originAnchor.href = location.href;
-
-	// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
-	function addToPrefiltersOrTransports( structure ) {
-
-		// dataTypeExpression is optional and defaults to "*"
-		return function( dataTypeExpression, func ) {
-
-			if ( typeof dataTypeExpression !== "string" ) {
-				func = dataTypeExpression;
-				dataTypeExpression = "*";
-			}
-
-			var dataType,
-				i = 0,
-				dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];
-
-			if ( jQuery.isFunction( func ) ) {
-
-				// For each dataType in the dataTypeExpression
-				while ( ( dataType = dataTypes[ i++ ] ) ) {
-
-					// Prepend if requested
-					if ( dataType[ 0 ] === "+" ) {
-						dataType = dataType.slice( 1 ) || "*";
-						( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
-
-					// Otherwise append
-					} else {
-						( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
-					}
-				}
-			}
-		};
-	}
-
-	// Base inspection function for prefilters and transports
-	function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
-
-		var inspected = {},
-			seekingTransport = ( structure === transports );
-
-		function inspect( dataType ) {
-			var selected;
-			inspected[ dataType ] = true;
-			jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
-				var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
-				if ( typeof dataTypeOrTransport === "string" &&
-					!seekingTransport && !inspected[ dataTypeOrTransport ] ) {
-
-					options.dataTypes.unshift( dataTypeOrTransport );
-					inspect( dataTypeOrTransport );
-					return false;
-				} else if ( seekingTransport ) {
-					return !( selected = dataTypeOrTransport );
-				}
-			} );
-			return selected;
-		}
-
-		return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
-	}
-
-	// A special extend for ajax options
-	// that takes "flat" options (not to be deep extended)
-	// Fixes #9887
-	function ajaxExtend( target, src ) {
-		var key, deep,
-			flatOptions = jQuery.ajaxSettings.flatOptions || {};
-
-		for ( key in src ) {
-			if ( src[ key ] !== undefined ) {
-				( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
-			}
-		}
-		if ( deep ) {
-			jQuery.extend( true, target, deep );
-		}
-
-		return target;
-	}
-
-	/* Handles responses to an ajax request:
-	 * - finds the right dataType (mediates between content-type and expected dataType)
-	 * - returns the corresponding response
-	 */
-	function ajaxHandleResponses( s, jqXHR, responses ) {
-
-		var ct, type, finalDataType, firstDataType,
-			contents = s.contents,
-			dataTypes = s.dataTypes;
-
-		// Remove auto dataType and get content-type in the process
-		while ( dataTypes[ 0 ] === "*" ) {
-			dataTypes.shift();
-			if ( ct === undefined ) {
-				ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
-			}
-		}
-
-		// Check if we're dealing with a known content-type
-		if ( ct ) {
-			for ( type in contents ) {
-				if ( contents[ type ] && contents[ type ].test( ct ) ) {
-					dataTypes.unshift( type );
-					break;
-				}
-			}
-		}
-
-		// Check to see if we have a response for the expected dataType
-		if ( dataTypes[ 0 ] in responses ) {
-			finalDataType = dataTypes[ 0 ];
-		} else {
-
-			// Try convertible dataTypes
-			for ( type in responses ) {
-				if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
-					finalDataType = type;
-					break;
-				}
-				if ( !firstDataType ) {
-					firstDataType = type;
-				}
-			}
-
-			// Or just use first one
-			finalDataType = finalDataType || firstDataType;
-		}
-
-		// If we found a dataType
-		// We add the dataType to the list if needed
-		// and return the corresponding response
-		if ( finalDataType ) {
-			if ( finalDataType !== dataTypes[ 0 ] ) {
-				dataTypes.unshift( finalDataType );
-			}
-			return responses[ finalDataType ];
-		}
-	}
-
-	/* Chain conversions given the request and the original response
-	 * Also sets the responseXXX fields on the jqXHR instance
-	 */
-	function ajaxConvert( s, response, jqXHR, isSuccess ) {
-		var conv2, current, conv, tmp, prev,
-			converters = {},
-
-			// Work with a copy of dataTypes in case we need to modify it for conversion
-			dataTypes = s.dataTypes.slice();
-
-		// Create converters map with lowercased keys
-		if ( dataTypes[ 1 ] ) {
-			for ( conv in s.converters ) {
-				converters[ conv.toLowerCase() ] = s.converters[ conv ];
-			}
-		}
-
-		current = dataTypes.shift();
-
-		// Convert to each sequential dataType
-		while ( current ) {
-
-			if ( s.responseFields[ current ] ) {
-				jqXHR[ s.responseFields[ current ] ] = response;
-			}
-
-			// Apply the dataFilter if provided
-			if ( !prev && isSuccess && s.dataFilter ) {
-				response = s.dataFilter( response, s.dataType );
-			}
-
-			prev = current;
-			current = dataTypes.shift();
-
-			if ( current ) {
-
-			// There's only work to do if current dataType is non-auto
-				if ( current === "*" ) {
-
-					current = prev;
-
-				// Convert response if prev dataType is non-auto and differs from current
-				} else if ( prev !== "*" && prev !== current ) {
-
-					// Seek a direct converter
-					conv = converters[ prev + " " + current ] || converters[ "* " + current ];
-
-					// If none found, seek a pair
-					if ( !conv ) {
-						for ( conv2 in converters ) {
-
-							// If conv2 outputs current
-							tmp = conv2.split( " " );
-							if ( tmp[ 1 ] === current ) {
-
-								// If prev can be converted to accepted input
-								conv = converters[ prev + " " + tmp[ 0 ] ] ||
-									converters[ "* " + tmp[ 0 ] ];
-								if ( conv ) {
-
-									// Condense equivalence converters
-									if ( conv === true ) {
-										conv = converters[ conv2 ];
-
-									// Otherwise, insert the intermediate dataType
-									} else if ( converters[ conv2 ] !== true ) {
-										current = tmp[ 0 ];
-										dataTypes.unshift( tmp[ 1 ] );
-									}
-									break;
-								}
-							}
-						}
-					}
-
-					// Apply converter (if not an equivalence)
-					if ( conv !== true ) {
-
-						// Unless errors are allowed to bubble, catch and return them
-						if ( conv && s.throws ) {
-							response = conv( response );
-						} else {
-							try {
-								response = conv( response );
-							} catch ( e ) {
-								return {
-									state: "parsererror",
-									error: conv ? e : "No conversion from " + prev + " to " + current
-								};
-							}
-						}
-					}
-				}
-			}
-		}
-
-		return { state: "success", data: response };
-	}
-
-	jQuery.extend( {
-
-		// Counter for holding the number of active queries
-		active: 0,
-
-		// Last-Modified header cache for next request
-		lastModified: {},
-		etag: {},
-
-		ajaxSettings: {
-			url: location.href,
-			type: "GET",
-			isLocal: rlocalProtocol.test( location.protocol ),
-			global: true,
-			processData: true,
-			async: true,
-			contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-			/*
-			timeout: 0,
-			data: null,
-			dataType: null,
-			username: null,
-			password: null,
-			cache: null,
-			throws: false,
-			traditional: false,
-			headers: {},
-			*/
-
-			accepts: {
-				"*": allTypes,
-				text: "text/plain",
-				html: "text/html",
-				xml: "application/xml, text/xml",
-				json: "application/json, text/javascript"
-			},
-
-			contents: {
-				xml: /\bxml\b/,
-				html: /\bhtml/,
-				json: /\bjson\b/
-			},
-
-			responseFields: {
-				xml: "responseXML",
-				text: "responseText",
-				json: "responseJSON"
-			},
-
-			// Data converters
-			// Keys separate source (or catchall "*") and destination types with a single space
-			converters: {
-
-				// Convert anything to text
-				"* text": String,
-
-				// Text to html (true = no transformation)
-				"text html": true,
-
-				// Evaluate text as a json expression
-				"text json": jQuery.parseJSON,
-
-				// Parse text as xml
-				"text xml": jQuery.parseXML
-			},
-
-			// For options that shouldn't be deep extended:
-			// you can add your own custom options here if
-			// and when you create one that shouldn't be
-			// deep extended (see ajaxExtend)
-			flatOptions: {
-				url: true,
-				context: true
-			}
-		},
-
-		// Creates a full fledged settings object into target
-		// with both ajaxSettings and settings fields.
-		// If target is omitted, writes into ajaxSettings.
-		ajaxSetup: function( target, settings ) {
-			return settings ?
-
-				// Building a settings object
-				ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
-
-				// Extending ajaxSettings
-				ajaxExtend( jQuery.ajaxSettings, target );
-		},
-
-		ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-		ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-		// Main method
-		ajax: function( url, options ) {
-
-			// If url is an object, simulate pre-1.5 signature
-			if ( typeof url === "object" ) {
-				options = url;
-				url = undefined;
-			}
-
-			// Force options to be an object
-			options = options || {};
-
-			var transport,
-
-				// URL without anti-cache param
-				cacheURL,
-
-				// Response headers
-				responseHeadersString,
-				responseHeaders,
-
-				// timeout handle
-				timeoutTimer,
-
-				// Url cleanup var
-				urlAnchor,
-
-				// To know if global events are to be dispatched
-				fireGlobals,
-
-				// Loop variable
-				i,
-
-				// Create the final options object
-				s = jQuery.ajaxSetup( {}, options ),
-
-				// Callbacks context
-				callbackContext = s.context || s,
-
-				// Context for global events is callbackContext if it is a DOM node or jQuery collection
-				globalEventContext = s.context &&
-					( callbackContext.nodeType || callbackContext.jquery ) ?
-						jQuery( callbackContext ) :
-						jQuery.event,
-
-				// Deferreds
-				deferred = jQuery.Deferred(),
-				completeDeferred = jQuery.Callbacks( "once memory" ),
-
-				// Status-dependent callbacks
-				statusCode = s.statusCode || {},
-
-				// Headers (they are sent all at once)
-				requestHeaders = {},
-				requestHeadersNames = {},
-
-				// The jqXHR state
-				state = 0,
-
-				// Default abort message
-				strAbort = "canceled",
-
-				// Fake xhr
-				jqXHR = {
-					readyState: 0,
-
-					// Builds headers hashtable if needed
-					getResponseHeader: function( key ) {
-						var match;
-						if ( state === 2 ) {
-							if ( !responseHeaders ) {
-								responseHeaders = {};
-								while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
-									responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
-								}
-							}
-							match = responseHeaders[ key.toLowerCase() ];
-						}
-						return match == null ? null : match;
-					},
-
-					// Raw string
-					getAllResponseHeaders: function() {
-						return state === 2 ? responseHeadersString : null;
-					},
-
-					// Caches the header
-					setRequestHeader: function( name, value ) {
-						var lname = name.toLowerCase();
-						if ( !state ) {
-							name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
-							requestHeaders[ name ] = value;
-						}
-						return this;
-					},
-
-					// Overrides response content-type header
-					overrideMimeType: function( type ) {
-						if ( !state ) {
-							s.mimeType = type;
-						}
-						return this;
-					},
-
-					// Status-dependent callbacks
-					statusCode: function( map ) {
-						var code;
-						if ( map ) {
-							if ( state < 2 ) {
-								for ( code in map ) {
-
-									// Lazy-add the new callback in a way that preserves old ones
-									statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
-								}
-							} else {
-
-								// Execute the appropriate callbacks
-								jqXHR.always( map[ jqXHR.status ] );
-							}
-						}
-						return this;
-					},
-
-					// Cancel the request
-					abort: function( statusText ) {
-						var finalText = statusText || strAbort;
-						if ( transport ) {
-							transport.abort( finalText );
-						}
-						done( 0, finalText );
-						return this;
-					}
-				};
-
-			// Attach deferreds
-			deferred.promise( jqXHR ).complete = completeDeferred.add;
-			jqXHR.success = jqXHR.done;
-			jqXHR.error = jqXHR.fail;
-
-			// Remove hash character (#7531: and string promotion)
-			// Add protocol if not provided (prefilters might expect it)
-			// Handle falsy url in the settings object (#10093: consistency with old signature)
-			// We also use the url parameter if available
-			s.url = ( ( url || s.url || location.href ) + "" ).replace( rhash, "" )
-				.replace( rprotocol, location.protocol + "//" );
-
-			// Alias method option to type as per ticket #12004
-			s.type = options.method || options.type || s.method || s.type;
-
-			// Extract dataTypes list
-			s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];
-
-			// A cross-domain request is in order when the origin doesn't match the current origin.
-			if ( s.crossDomain == null ) {
-				urlAnchor = document.createElement( "a" );
-
-				// Support: IE8-11+
-				// IE throws exception if url is malformed, e.g. http://example.com:80x/
-				try {
-					urlAnchor.href = s.url;
-
-					// Support: IE8-11+
-					// Anchor's host property isn't correctly set when s.url is relative
-					urlAnchor.href = urlAnchor.href;
-					s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
-						urlAnchor.protocol + "//" + urlAnchor.host;
-				} catch ( e ) {
-
-					// If there is an error parsing the URL, assume it is crossDomain,
-					// it can be rejected by the transport if it is invalid
-					s.crossDomain = true;
-				}
-			}
-
-			// Convert data if not already a string
-			if ( s.data && s.processData && typeof s.data !== "string" ) {
-				s.data = jQuery.param( s.data, s.traditional );
-			}
-
-			// Apply prefilters
-			inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-			// If request was aborted inside a prefilter, stop there
-			if ( state === 2 ) {
-				return jqXHR;
-			}
-
-			// We can fire global events as of now if asked to
-			// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
-			fireGlobals = jQuery.event && s.global;
-
-			// Watch for a new set of requests
-			if ( fireGlobals && jQuery.active++ === 0 ) {
-				jQuery.event.trigger( "ajaxStart" );
-			}
-
-			// Uppercase the type
-			s.type = s.type.toUpperCase();
-
-			// Determine if request has content
-			s.hasContent = !rnoContent.test( s.type );
-
-			// Save the URL in case we're toying with the If-Modified-Since
-			// and/or If-None-Match header later on
-			cacheURL = s.url;
-
-			// More options handling for requests with no content
-			if ( !s.hasContent ) {
-
-				// If data is available, append data to url
-				if ( s.data ) {
-					cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
-
-					// #9682: remove data so that it's not used in an eventual retry
-					delete s.data;
-				}
-
-				// Add anti-cache in url if needed
-				if ( s.cache === false ) {
-					s.url = rts.test( cacheURL ) ?
-
-						// If there is already a '_' parameter, set its value
-						cacheURL.replace( rts, "$1_=" + nonce++ ) :
-
-						// Otherwise add one to the end
-						cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
-				}
-			}
-
-			// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-			if ( s.ifModified ) {
-				if ( jQuery.lastModified[ cacheURL ] ) {
-					jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
-				}
-				if ( jQuery.etag[ cacheURL ] ) {
-					jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
-				}
-			}
-
-			// Set the correct header, if data is being sent
-			if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-				jqXHR.setRequestHeader( "Content-Type", s.contentType );
-			}
-
-			// Set the Accepts header for the server, depending on the dataType
-			jqXHR.setRequestHeader(
-				"Accept",
-				s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
-					s.accepts[ s.dataTypes[ 0 ] ] +
-						( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-					s.accepts[ "*" ]
-			);
-
-			// Check for headers option
-			for ( i in s.headers ) {
-				jqXHR.setRequestHeader( i, s.headers[ i ] );
-			}
-
-			// Allow custom headers/mimetypes and early abort
-			if ( s.beforeSend &&
-				( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-
-				// Abort if not done already and return
-				return jqXHR.abort();
-			}
-
-			// Aborting is no longer a cancellation
-			strAbort = "abort";
-
-			// Install callbacks on deferreds
-			for ( i in { success: 1, error: 1, complete: 1 } ) {
-				jqXHR[ i ]( s[ i ] );
-			}
-
-			// Get transport
-			transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-			// If no transport, we auto-abort
-			if ( !transport ) {
-				done( -1, "No Transport" );
-			} else {
-				jqXHR.readyState = 1;
-
-				// Send global event
-				if ( fireGlobals ) {
-					globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-				}
-
-				// If request was aborted inside ajaxSend, stop there
-				if ( state === 2 ) {
-					return jqXHR;
-				}
-
-				// Timeout
-				if ( s.async && s.timeout > 0 ) {
-					timeoutTimer = window.setTimeout( function() {
-						jqXHR.abort( "timeout" );
-					}, s.timeout );
-				}
-
-				try {
-					state = 1;
-					transport.send( requestHeaders, done );
-				} catch ( e ) {
-
-					// Propagate exception as error if not done
-					if ( state < 2 ) {
-						done( -1, e );
-
-					// Simply rethrow otherwise
-					} else {
-						throw e;
-					}
-				}
-			}
-
-			// Callback for when everything is done
-			function done( status, nativeStatusText, responses, headers ) {
-				var isSuccess, success, error, response, modified,
-					statusText = nativeStatusText;
-
-				// Called once
-				if ( state === 2 ) {
-					return;
-				}
-
-				// State is "done" now
-				state = 2;
-
-				// Clear timeout if it exists
-				if ( timeoutTimer ) {
-					window.clearTimeout( timeoutTimer );
-				}
-
-				// Dereference transport for early garbage collection
-				// (no matter how long the jqXHR object will be used)
-				transport = undefined;
-
-				// Cache response headers
-				responseHeadersString = headers || "";
-
-				// Set readyState
-				jqXHR.readyState = status > 0 ? 4 : 0;
-
-				// Determine if successful
-				isSuccess = status >= 200 && status < 300 || status === 304;
-
-				// Get response data
-				if ( responses ) {
-					response = ajaxHandleResponses( s, jqXHR, responses );
-				}
-
-				// Convert no matter what (that way responseXXX fields are always set)
-				response = ajaxConvert( s, response, jqXHR, isSuccess );
-
-				// If successful, handle type chaining
-				if ( isSuccess ) {
-
-					// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-					if ( s.ifModified ) {
-						modified = jqXHR.getResponseHeader( "Last-Modified" );
-						if ( modified ) {
-							jQuery.lastModified[ cacheURL ] = modified;
-						}
-						modified = jqXHR.getResponseHeader( "etag" );
-						if ( modified ) {
-							jQuery.etag[ cacheURL ] = modified;
-						}
-					}
-
-					// if no content
-					if ( status === 204 || s.type === "HEAD" ) {
-						statusText = "nocontent";
-
-					// if not modified
-					} else if ( status === 304 ) {
-						statusText = "notmodified";
-
-					// If we have data, let's convert it
-					} else {
-						statusText = response.state;
-						success = response.data;
-						error = response.error;
-						isSuccess = !error;
-					}
-				} else {
-
-					// Extract error from statusText and normalize for non-aborts
-					error = statusText;
-					if ( status || !statusText ) {
-						statusText = "error";
-						if ( status < 0 ) {
-							status = 0;
-						}
-					}
-				}
-
-				// Set data for the fake xhr object
-				jqXHR.status = status;
-				jqXHR.statusText = ( nativeStatusText || statusText ) + "";
-
-				// Success/Error
-				if ( isSuccess ) {
-					deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-				} else {
-					deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-				}
-
-				// Status-dependent callbacks
-				jqXHR.statusCode( statusCode );
-				statusCode = undefined;
-
-				if ( fireGlobals ) {
-					globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
-						[ jqXHR, s, isSuccess ? success : error ] );
-				}
-
-				// Complete
-				completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-				if ( fireGlobals ) {
-					globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-
-					// Handle the global AJAX counter
-					if ( !( --jQuery.active ) ) {
-						jQuery.event.trigger( "ajaxStop" );
-					}
-				}
-			}
-
-			return jqXHR;
-		},
-
-		getJSON: function( url, data, callback ) {
-			return jQuery.get( url, data, callback, "json" );
-		},
-
-		getScript: function( url, callback ) {
-			return jQuery.get( url, undefined, callback, "script" );
-		}
-	} );
-
-	jQuery.each( [ "get", "post" ], function( i, method ) {
-		jQuery[ method ] = function( url, data, callback, type ) {
-
-			// Shift arguments if data argument was omitted
-			if ( jQuery.isFunction( data ) ) {
-				type = type || callback;
-				callback = data;
-				data = undefined;
-			}
-
-			// The url can be an options object (which then must have .url)
-			return jQuery.ajax( jQuery.extend( {
-				url: url,
-				type: method,
-				dataType: type,
-				data: data,
-				success: callback
-			}, jQuery.isPlainObject( url ) && url ) );
-		};
-	} );
-
-
-	jQuery._evalUrl = function( url ) {
-		return jQuery.ajax( {
-			url: url,
-
-			// Make this explicit, since user can override this through ajaxSetup (#11264)
-			type: "GET",
-			dataType: "script",
-			async: false,
-			global: false,
-			"throws": true
-		} );
-	};
-
-
-	jQuery.fn.extend( {
-		wrapAll: function( html ) {
-			var wrap;
-
-			if ( jQuery.isFunction( html ) ) {
-				return this.each( function( i ) {
-					jQuery( this ).wrapAll( html.call( this, i ) );
-				} );
-			}
-
-			if ( this[ 0 ] ) {
-
-				// The elements to wrap the target around
-				wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
-
-				if ( this[ 0 ].parentNode ) {
-					wrap.insertBefore( this[ 0 ] );
-				}
-
-				wrap.map( function() {
-					var elem = this;
-
-					while ( elem.firstElementChild ) {
-						elem = elem.firstElementChild;
-					}
-
-					return elem;
-				} ).append( this );
-			}
-
-			return this;
-		},
-
-		wrapInner: function( html ) {
-			if ( jQuery.isFunction( html ) ) {
-				return this.each( function( i ) {
-					jQuery( this ).wrapInner( html.call( this, i ) );
-				} );
-			}
-
-			return this.each( function() {
-				var self = jQuery( this ),
-					contents = self.contents();
-
-				if ( contents.length ) {
-					contents.wrapAll( html );
-
-				} else {
-					self.append( html );
-				}
-			} );
-		},
-
-		wrap: function( html ) {
-			var isFunction = jQuery.isFunction( html );
-
-			return this.each( function( i ) {
-				jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
-			} );
-		},
-
-		unwrap: function() {
-			return this.parent().each( function() {
-				if ( !jQuery.nodeName( this, "body" ) ) {
-					jQuery( this ).replaceWith( this.childNodes );
-				}
-			} ).end();
-		}
-	} );
-
-
-	jQuery.expr.filters.hidden = function( elem ) {
-		return !jQuery.expr.filters.visible( elem );
-	};
-	jQuery.expr.filters.visible = function( elem ) {
-
-		// Support: Opera <= 12.12
-		// Opera reports offsetWidths and offsetHeights less than zero on some elements
-		// Use OR instead of AND as the element is not visible if either is true
-		// See tickets #10406 and #13132
-		return elem.offsetWidth > 0 || elem.offsetHeight > 0 || elem.getClientRects().length > 0;
-	};
-
-
-
-
-	var r20 = /%20/g,
-		rbracket = /\[\]$/,
-		rCRLF = /\r?\n/g,
-		rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
-		rsubmittable = /^(?:input|select|textarea|keygen)/i;
-
-	function buildParams( prefix, obj, traditional, add ) {
-		var name;
-
-		if ( jQuery.isArray( obj ) ) {
-
-			// Serialize array item.
-			jQuery.each( obj, function( i, v ) {
-				if ( traditional || rbracket.test( prefix ) ) {
-
-					// Treat each array item as a scalar.
-					add( prefix, v );
-
-				} else {
-
-					// Item is non-scalar (array or object), encode its numeric index.
-					buildParams(
-						prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
-						v,
-						traditional,
-						add
-					);
-				}
-			} );
-
-		} else if ( !traditional && jQuery.type( obj ) === "object" ) {
-
-			// Serialize object item.
-			for ( name in obj ) {
-				buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-			}
-
-		} else {
-
-			// Serialize scalar item.
-			add( prefix, obj );
-		}
-	}
-
-	// Serialize an array of form elements or a set of
-	// key/values into a query string
-	jQuery.param = function( a, traditional ) {
-		var prefix,
-			s = [],
-			add = function( key, value ) {
-
-				// If value is a function, invoke it and return its value
-				value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
-				s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-			};
-
-		// Set traditional to true for jQuery <= 1.3.2 behavior.
-		if ( traditional === undefined ) {
-			traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
-		}
-
-		// If an array was passed in, assume that it is an array of form elements.
-		if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-
-			// Serialize the form elements
-			jQuery.each( a, function() {
-				add( this.name, this.value );
-			} );
-
-		} else {
-
-			// If traditional, encode the "old" way (the way 1.3.2 or older
-			// did it), otherwise encode params recursively.
-			for ( prefix in a ) {
-				buildParams( prefix, a[ prefix ], traditional, add );
-			}
-		}
-
-		// Return the resulting serialization
-		return s.join( "&" ).replace( r20, "+" );
-	};
-
-	jQuery.fn.extend( {
-		serialize: function() {
-			return jQuery.param( this.serializeArray() );
-		},
-		serializeArray: function() {
-			return this.map( function() {
-
-				// Can add propHook for "elements" to filter or add form elements
-				var elements = jQuery.prop( this, "elements" );
-				return elements ? jQuery.makeArray( elements ) : this;
-			} )
-			.filter( function() {
-				var type = this.type;
-
-				// Use .is( ":disabled" ) so that fieldset[disabled] works
-				return this.name && !jQuery( this ).is( ":disabled" ) &&
-					rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
-					( this.checked || !rcheckableType.test( type ) );
-			} )
-			.map( function( i, elem ) {
-				var val = jQuery( this ).val();
-
-				return val == null ?
-					null :
-					jQuery.isArray( val ) ?
-						jQuery.map( val, function( val ) {
-							return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-						} ) :
-						{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-			} ).get();
-		}
-	} );
-
-
-	jQuery.ajaxSettings.xhr = function() {
-		try {
-			return new window.XMLHttpRequest();
-		} catch ( e ) {}
-	};
-
-	var xhrSuccessStatus = {
-
-			// File protocol always yields status code 0, assume 200
-			0: 200,
-
-			// Support: IE9
-			// #1450: sometimes IE returns 1223 when it should be 204
-			1223: 204
-		},
-		xhrSupported = jQuery.ajaxSettings.xhr();
-
-	support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
-	support.ajax = xhrSupported = !!xhrSupported;
-
-	jQuery.ajaxTransport( function( options ) {
-		var callback, errorCallback;
-
-		// Cross domain only allowed if supported through XMLHttpRequest
-		if ( support.cors || xhrSupported && !options.crossDomain ) {
-			return {
-				send: function( headers, complete ) {
-					var i,
-						xhr = options.xhr();
-
-					xhr.open(
-						options.type,
-						options.url,
-						options.async,
-						options.username,
-						options.password
-					);
-
-					// Apply custom fields if provided
-					if ( options.xhrFields ) {
-						for ( i in options.xhrFields ) {
-							xhr[ i ] = options.xhrFields[ i ];
-						}
-					}
-
-					// Override mime type if needed
-					if ( options.mimeType && xhr.overrideMimeType ) {
-						xhr.overrideMimeType( options.mimeType );
-					}
-
-					// X-Requested-With header
-					// For cross-domain requests, seeing as conditions for a preflight are
-					// akin to a jigsaw puzzle, we simply never set it to be sure.
-					// (it can always be set on a per-request basis or even using ajaxSetup)
-					// For same-domain requests, won't change header if already provided.
-					if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
-						headers[ "X-Requested-With" ] = "XMLHttpRequest";
-					}
-
-					// Set headers
-					for ( i in headers ) {
-						xhr.setRequestHeader( i, headers[ i ] );
-					}
-
-					// Callback
-					callback = function( type ) {
-						return function() {
-							if ( callback ) {
-								callback = errorCallback = xhr.onload =
-									xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;
-
-								if ( type === "abort" ) {
-									xhr.abort();
-								} else if ( type === "error" ) {
-
-									// Support: IE9
-									// On a manual native abort, IE9 throws
-									// errors on any property access that is not readyState
-									if ( typeof xhr.status !== "number" ) {
-										complete( 0, "error" );
-									} else {
-										complete(
-
-											// File: protocol always yields status 0; see #8605, #14207
-											xhr.status,
-											xhr.statusText
-										);
-									}
-								} else {
-									complete(
-										xhrSuccessStatus[ xhr.status ] || xhr.status,
-										xhr.statusText,
-
-										// Support: IE9 only
-										// IE9 has no XHR2 but throws on binary (trac-11426)
-										// For XHR2 non-text, let the caller handle it (gh-2498)
-										( xhr.responseType || "text" ) !== "text"  ||
-										typeof xhr.responseText !== "string" ?
-											{ binary: xhr.response } :
-											{ text: xhr.responseText },
-										xhr.getAllResponseHeaders()
-									);
-								}
-							}
-						};
-					};
-
-					// Listen to events
-					xhr.onload = callback();
-					errorCallback = xhr.onerror = callback( "error" );
-
-					// Support: IE9
-					// Use onreadystatechange to replace onabort
-					// to handle uncaught aborts
-					if ( xhr.onabort !== undefined ) {
-						xhr.onabort = errorCallback;
-					} else {
-						xhr.onreadystatechange = function() {
-
-							// Check readyState before timeout as it changes
-							if ( xhr.readyState === 4 ) {
-
-								// Allow onerror to be called first,
-								// but that will not handle a native abort
-								// Also, save errorCallback to a variable
-								// as xhr.onerror cannot be accessed
-								window.setTimeout( function() {
-									if ( callback ) {
-										errorCallback();
-									}
-								} );
-							}
-						};
-					}
-
-					// Create the abort callback
-					callback = callback( "abort" );
-
-					try {
-
-						// Do send the request (this may raise an exception)
-						xhr.send( options.hasContent && options.data || null );
-					} catch ( e ) {
-
-						// #14683: Only rethrow if this hasn't been notified as an error yet
-						if ( callback ) {
-							throw e;
-						}
-					}
-				},
-
-				abort: function() {
-					if ( callback ) {
-						callback();
-					}
-				}
-			};
-		}
-	} );
-
-
-
-
-	// Install script dataType
-	jQuery.ajaxSetup( {
-		accepts: {
-			script: "text/javascript, application/javascript, " +
-				"application/ecmascript, application/x-ecmascript"
-		},
-		contents: {
-			script: /\b(?:java|ecma)script\b/
-		},
-		converters: {
-			"text script": function( text ) {
-				jQuery.globalEval( text );
-				return text;
-			}
-		}
-	} );
-
-	// Handle cache's special case and crossDomain
-	jQuery.ajaxPrefilter( "script", function( s ) {
-		if ( s.cache === undefined ) {
-			s.cache = false;
-		}
-		if ( s.crossDomain ) {
-			s.type = "GET";
-		}
-	} );
-
-	// Bind script tag hack transport
-	jQuery.ajaxTransport( "script", function( s ) {
-
-		// This transport only deals with cross domain requests
-		if ( s.crossDomain ) {
-			var script, callback;
-			return {
-				send: function( _, complete ) {
-					script = jQuery( "<script>" ).prop( {
-						charset: s.scriptCharset,
-						src: s.url
-					} ).on(
-						"load error",
-						callback = function( evt ) {
-							script.remove();
-							callback = null;
-							if ( evt ) {
-								complete( evt.type === "error" ? 404 : 200, evt.type );
-							}
-						}
-					);
-
-					// Use native DOM manipulation to avoid our domManip AJAX trickery
-					document.head.appendChild( script[ 0 ] );
-				},
-				abort: function() {
-					if ( callback ) {
-						callback();
-					}
-				}
-			};
-		}
-	} );
-
-
-
-
-	var oldCallbacks = [],
-		rjsonp = /(=)\?(?=&|$)|\?\?/;
-
-	// Default jsonp settings
-	jQuery.ajaxSetup( {
-		jsonp: "callback",
-		jsonpCallback: function() {
-			var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
-			this[ callback ] = true;
-			return callback;
-		}
-	} );
-
-	// Detect, normalize options and install callbacks for jsonp requests
-	jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-		var callbackName, overwritten, responseContainer,
-			jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
-				"url" :
-				typeof s.data === "string" &&
-					( s.contentType || "" )
-						.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
-					rjsonp.test( s.data ) && "data"
-			);
-
-		// Handle iff the expected data type is "jsonp" or we have a parameter to set
-		if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
-
-			// Get callback name, remembering preexisting value associated with it
-			callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
-				s.jsonpCallback() :
-				s.jsonpCallback;
-
-			// Insert callback into url or form data
-			if ( jsonProp ) {
-				s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
-			} else if ( s.jsonp !== false ) {
-				s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
-			}
-
-			// Use data converter to retrieve json after script execution
-			s.converters[ "script json" ] = function() {
-				if ( !responseContainer ) {
-					jQuery.error( callbackName + " was not called" );
-				}
-				return responseContainer[ 0 ];
-			};
-
-			// Force json dataType
-			s.dataTypes[ 0 ] = "json";
-
-			// Install callback
-			overwritten = window[ callbackName ];
-			window[ callbackName ] = function() {
-				responseContainer = arguments;
-			};
-
-			// Clean-up function (fires after converters)
-			jqXHR.always( function() {
-
-				// If previous value didn't exist - remove it
-				if ( overwritten === undefined ) {
-					jQuery( window ).removeProp( callbackName );
-
-				// Otherwise restore preexisting value
-				} else {
-					window[ callbackName ] = overwritten;
-				}
-
-				// Save back as free
-				if ( s[ callbackName ] ) {
-
-					// Make sure that re-using the options doesn't screw things around
-					s.jsonpCallback = originalSettings.jsonpCallback;
-
-					// Save the callback name for future use
-					oldCallbacks.push( callbackName );
-				}
-
-				// Call if it was a function and we have a response
-				if ( responseContainer && jQuery.isFunction( overwritten ) ) {
-					overwritten( responseContainer[ 0 ] );
-				}
-
-				responseContainer = overwritten = undefined;
-			} );
-
-			// Delegate to script
-			return "script";
-		}
-	} );
-
-
-
-
-	// Argument "data" should be string of html
-	// context (optional): If specified, the fragment will be created in this context,
-	// defaults to document
-	// keepScripts (optional): If true, will include scripts passed in the html string
-	jQuery.parseHTML = function( data, context, keepScripts ) {
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-		if ( typeof context === "boolean" ) {
-			keepScripts = context;
-			context = false;
-		}
-		context = context || document;
-
-		var parsed = rsingleTag.exec( data ),
-			scripts = !keepScripts && [];
-
-		// Single tag
-		if ( parsed ) {
-			return [ context.createElement( parsed[ 1 ] ) ];
-		}
-
-		parsed = buildFragment( [ data ], context, scripts );
-
-		if ( scripts && scripts.length ) {
-			jQuery( scripts ).remove();
-		}
-
-		return jQuery.merge( [], parsed.childNodes );
-	};
-
-
-	// Keep a copy of the old load method
-	var _load = jQuery.fn.load;
-
-	/**
-	 * Load a url into a page
-	 */
-	jQuery.fn.load = function( url, params, callback ) {
-		if ( typeof url !== "string" && _load ) {
-			return _load.apply( this, arguments );
-		}
-
-		var selector, type, response,
-			self = this,
-			off = url.indexOf( " " );
-
-		if ( off > -1 ) {
-			selector = jQuery.trim( url.slice( off ) );
-			url = url.slice( 0, off );
-		}
-
-		// If it's a function
-		if ( jQuery.isFunction( params ) ) {
-
-			// We assume that it's the callback
-			callback = params;
-			params = undefined;
-
-		// Otherwise, build a param string
-		} else if ( params && typeof params === "object" ) {
-			type = "POST";
-		}
-
-		// If we have elements to modify, make the request
-		if ( self.length > 0 ) {
-			jQuery.ajax( {
-				url: url,
-
-				// If "type" variable is undefined, then "GET" method will be used.
-				// Make value of this field explicit since
-				// user can override it through ajaxSetup method
-				type: type || "GET",
-				dataType: "html",
-				data: params
-			} ).done( function( responseText ) {
-
-				// Save response for use in complete callback
-				response = arguments;
-
-				self.html( selector ?
-
-					// If a selector was specified, locate the right elements in a dummy div
-					// Exclude scripts to avoid IE 'Permission Denied' errors
-					jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
-
-					// Otherwise use the full result
-					responseText );
-
-			// If the request succeeds, this function gets "data", "status", "jqXHR"
-			// but they are ignored because response was set above.
-			// If it fails, this function gets "jqXHR", "status", "error"
-			} ).always( callback && function( jqXHR, status ) {
-				self.each( function() {
-					callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
-				} );
-			} );
-		}
-
-		return this;
-	};
-
-
-
-
-	// Attach a bunch of functions for handling common AJAX events
-	jQuery.each( [
-		"ajaxStart",
-		"ajaxStop",
-		"ajaxComplete",
-		"ajaxError",
-		"ajaxSuccess",
-		"ajaxSend"
-	], function( i, type ) {
-		jQuery.fn[ type ] = function( fn ) {
-			return this.on( type, fn );
-		};
-	} );
-
-
-
-
-	jQuery.expr.filters.animated = function( elem ) {
-		return jQuery.grep( jQuery.timers, function( fn ) {
-			return elem === fn.elem;
-		} ).length;
-	};
-
-
-
-
-	/**
-	 * Gets a window from an element
-	 */
-	function getWindow( elem ) {
-		return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
-	}
-
-	jQuery.offset = {
-		setOffset: function( elem, options, i ) {
-			var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
-				position = jQuery.css( elem, "position" ),
-				curElem = jQuery( elem ),
-				props = {};
-
-			// Set position first, in-case top/left are set even on static elem
-			if ( position === "static" ) {
-				elem.style.position = "relative";
-			}
-
-			curOffset = curElem.offset();
-			curCSSTop = jQuery.css( elem, "top" );
-			curCSSLeft = jQuery.css( elem, "left" );
-			calculatePosition = ( position === "absolute" || position === "fixed" ) &&
-				( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
-
-			// Need to be able to calculate position if either
-			// top or left is auto and position is either absolute or fixed
-			if ( calculatePosition ) {
-				curPosition = curElem.position();
-				curTop = curPosition.top;
-				curLeft = curPosition.left;
-
-			} else {
-				curTop = parseFloat( curCSSTop ) || 0;
-				curLeft = parseFloat( curCSSLeft ) || 0;
-			}
-
-			if ( jQuery.isFunction( options ) ) {
-
-				// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
-				options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
-			}
-
-			if ( options.top != null ) {
-				props.top = ( options.top - curOffset.top ) + curTop;
-			}
-			if ( options.left != null ) {
-				props.left = ( options.left - curOffset.left ) + curLeft;
-			}
-
-			if ( "using" in options ) {
-				options.using.call( elem, props );
-
-			} else {
-				curElem.css( props );
-			}
-		}
-	};
-
-	jQuery.fn.extend( {
-		offset: function( options ) {
-			if ( arguments.length ) {
-				return options === undefined ?
-					this :
-					this.each( function( i ) {
-						jQuery.offset.setOffset( this, options, i );
-					} );
-			}
-
-			var docElem, win,
-				elem = this[ 0 ],
-				box = { top: 0, left: 0 },
-				doc = elem && elem.ownerDocument;
-
-			if ( !doc ) {
-				return;
-			}
-
-			docElem = doc.documentElement;
-
-			// Make sure it's not a disconnected DOM node
-			if ( !jQuery.contains( docElem, elem ) ) {
-				return box;
-			}
-
-			box = elem.getBoundingClientRect();
-			win = getWindow( doc );
-			return {
-				top: box.top + win.pageYOffset - docElem.clientTop,
-				left: box.left + win.pageXOffset - docElem.clientLeft
-			};
-		},
-
-		position: function() {
-			if ( !this[ 0 ] ) {
-				return;
-			}
-
-			var offsetParent, offset,
-				elem = this[ 0 ],
-				parentOffset = { top: 0, left: 0 };
-
-			// Fixed elements are offset from window (parentOffset = {top:0, left: 0},
-			// because it is its only offset parent
-			if ( jQuery.css( elem, "position" ) === "fixed" ) {
-
-				// Assume getBoundingClientRect is there when computed position is fixed
-				offset = elem.getBoundingClientRect();
-
-			} else {
-
-				// Get *real* offsetParent
-				offsetParent = this.offsetParent();
-
-				// Get correct offsets
-				offset = this.offset();
-				if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
-					parentOffset = offsetParent.offset();
-				}
-
-				// Add offsetParent borders
-				parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
-				parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
-			}
-
-			// Subtract parent offsets and element margins
-			return {
-				top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
-				left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
-			};
-		},
-
-		// This method will return documentElement in the following cases:
-		// 1) For the element inside the iframe without offsetParent, this method will return
-		//    documentElement of the parent window
-		// 2) For the hidden or detached element
-		// 3) For body or html element, i.e. in case of the html node - it will return itself
-		//
-		// but those exceptions were never presented as a real life use-cases
-		// and might be considered as more preferable results.
-		//
-		// This logic, however, is not guaranteed and can change at any point in the future
-		offsetParent: function() {
-			return this.map( function() {
-				var offsetParent = this.offsetParent;
-
-				while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
-					offsetParent = offsetParent.offsetParent;
-				}
-
-				return offsetParent || documentElement;
-			} );
-		}
-	} );
-
-	// Create scrollLeft and scrollTop methods
-	jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
-		var top = "pageYOffset" === prop;
-
-		jQuery.fn[ method ] = function( val ) {
-			return access( this, function( elem, method, val ) {
-				var win = getWindow( elem );
-
-				if ( val === undefined ) {
-					return win ? win[ prop ] : elem[ method ];
-				}
-
-				if ( win ) {
-					win.scrollTo(
-						!top ? val : win.pageXOffset,
-						top ? val : win.pageYOffset
-					);
-
-				} else {
-					elem[ method ] = val;
-				}
-			}, method, val, arguments.length );
-		};
-	} );
-
-	// Support: Safari<7-8+, Chrome<37-44+
-	// Add the top/left cssHooks using jQuery.fn.position
-	// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
-	// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
-	// getComputedStyle returns percent when specified for top/left/bottom/right;
-	// rather than make the css module depend on the offset module, just check for it here
-	jQuery.each( [ "top", "left" ], function( i, prop ) {
-		jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
-			function( elem, computed ) {
-				if ( computed ) {
-					computed = curCSS( elem, prop );
-
-					// If curCSS returns percentage, fallback to offset
-					return rnumnonpx.test( computed ) ?
-						jQuery( elem ).position()[ prop ] + "px" :
-						computed;
-				}
-			}
-		);
-	} );
-
-
-	// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
-	jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-		jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
-			function( defaultExtra, funcName ) {
-
-			// Margin is only for outerHeight, outerWidth
-			jQuery.fn[ funcName ] = function( margin, value ) {
-				var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
-					extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
-
-				return access( this, function( elem, type, value ) {
-					var doc;
-
-					if ( jQuery.isWindow( elem ) ) {
-
-						// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
-						// isn't a whole lot we can do. See pull request at this URL for discussion:
-						// https://github.com/jquery/jquery/pull/764
-						return elem.document.documentElement[ "client" + name ];
-					}
-
-					// Get document width or height
-					if ( elem.nodeType === 9 ) {
-						doc = elem.documentElement;
-
-						// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
-						// whichever is greatest
-						return Math.max(
-							elem.body[ "scroll" + name ], doc[ "scroll" + name ],
-							elem.body[ "offset" + name ], doc[ "offset" + name ],
-							doc[ "client" + name ]
-						);
-					}
-
-					return value === undefined ?
-
-						// Get width or height on the element, requesting but not forcing parseFloat
-						jQuery.css( elem, type, extra ) :
-
-						// Set width or height on the element
-						jQuery.style( elem, type, value, extra );
-				}, type, chainable ? margin : undefined, chainable, null );
-			};
-		} );
-	} );
-
-
-	jQuery.fn.extend( {
-
-		bind: function( types, data, fn ) {
-			return this.on( types, null, data, fn );
-		},
-		unbind: function( types, fn ) {
-			return this.off( types, null, fn );
-		},
-
-		delegate: function( selector, types, data, fn ) {
-			return this.on( types, selector, data, fn );
-		},
-		undelegate: function( selector, types, fn ) {
-
-			// ( namespace ) or ( selector, types [, fn] )
-			return arguments.length === 1 ?
-				this.off( selector, "**" ) :
-				this.off( types, selector || "**", fn );
-		},
-		size: function() {
-			return this.length;
-		}
-	} );
-
-	jQuery.fn.andSelf = jQuery.fn.addBack;
-
-
-
-
-	// Register as a named AMD module, since jQuery can be concatenated with other
-	// files that may use define, but not via a proper concatenation script that
-	// understands anonymous AMD modules. A named AMD is safest and most robust
-	// way to register. Lowercase jquery is used because AMD module names are
-	// derived from file names, and jQuery is normally delivered in a lowercase
-	// file name. Do this after creating the global so that if an AMD module wants
-	// to call noConflict to hide this version of jQuery, it will work.
-
-	// Note that for maximum portability, libraries that are not jQuery should
-	// declare themselves as anonymous modules, and avoid setting a global if an
-	// AMD loader is present. jQuery is a special case. For more information, see
-	// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
-
-	if ( true ) {
-		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = function() {
-			return jQuery;
-		}.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-	}
-
-
-
-	var
-
-		// Map over jQuery in case of overwrite
-		_jQuery = window.jQuery,
-
-		// Map over the $ in case of overwrite
-		_$ = window.$;
-
-	jQuery.noConflict = function( deep ) {
-		if ( window.$ === jQuery ) {
-			window.$ = _$;
-		}
-
-		if ( deep && window.jQuery === jQuery ) {
-			window.jQuery = _jQuery;
-		}
-
-		return jQuery;
-	};
-
-	// Expose jQuery and $ identifiers, even in AMD
-	// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
-	// and CommonJS for browser emulators (#13566)
-	if ( !noGlobal ) {
-		window.jQuery = window.$ = jQuery;
-	}
-
-	return jQuery;
-	}));
-
-
-/***/ }),
-/* 2 */
-/***/ (function(module, exports) {
-
-	// Add a polyfill for window.requestAnimationFrame.
-	if (!window.requestAnimationFrame) {
-	  var _animationFrameFunc = [];
-	  if (!window.performance || !window.performance.now) {
-	    window.performance = {now: function () { return new Date().getTime(); }};
-	  }
-	  window.requestAnimationFrame = function (func) {
-	    'use strict';
-
-	    if (!_animationFrameFunc.length) {
-	      var time = window.performance.now();
-	      window.setTimeout(function () {
-	        var funcs = _animationFrameFunc;
-	        _animationFrameFunc = [];
-	        var curtime = window.performance.now();
-	        for (var i = 0; i < funcs.length; i += 1) {
-	          funcs[i].call(window, curtime);
-	        }
-	      }, 15 - (parseInt(time, 10) % 15));
-	    }
-	    _animationFrameFunc.push(func);
-	  };
-	}
-
-	// Add a polyfill for Math.log2
-	if (!Math.log2) {
-	  Math.log2 = function () {
-	    return Math.log.apply(Math, arguments) / Math.LN2;
-	  };
-	}
-
-	// Add a polyfill for Math.sinh
-	Math.sinh = Math.sinh || function (x) {
-	  var y = Math.exp(x);
-	  return (y - 1 / y) / 2;
-	};
-
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	// style-loader: Adds some css to the DOM by adding a <style> tag
-
-	// load the styles
-	var content = __webpack_require__(4);
-	if(typeof content === 'string') content = [[module.id, content, '']];
-	// add the styles to the DOM
-	var update = __webpack_require__(6)(content, {});
-	if(content.locals) module.exports = content.locals;
-	// Hot Module Replacement
-	if(false) {
-		// When the styles change, update the <style> tags
-		if(!content.locals) {
-			module.hot.accept("!!../node_modules/css-loader/index.js!../node_modules/stylus-loader/index.js!./main.styl", function() {
-				var newContent = require("!!../node_modules/css-loader/index.js!../node_modules/stylus-loader/index.js!./main.styl");
-				if(typeof newContent === 'string') newContent = [[module.id, newContent, '']];
-				update(newContent);
-			});
-		}
-		// When the module is disposed, remove the <style> tags
-		module.hot.dispose(function() { update(); });
-	}
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	exports = module.exports = __webpack_require__(5)();
-	// imports
-
-
-	// module
-	exports.push([module.id, ".geojs-map{position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.geojs-map .geo-attribution{position:absolute;right:0;bottom:0;padding-right:5px;cursor:auto;font:11px/1.5 Helvetica Neue,Arial,Helvetica,sans-serif;z-index:1001;background:hsla(0,0%,100%,.7);clear:both;display:block;pointer-events:auto}.geojs-map .geo-attribution .geo-attribution-layer{padding-left:5px}.geojs-map .canvas-canvas{display:block;-webkit-transform-origin:0 0;transform-origin:0 0}.geojs-map .webgl-canvas{display:block}.geojs-map .geojs-layer{position:absolute;width:100%;height:100%;pointer-events:none}.geojs-map .geojs-layer.active{pointer-events:auto}.geojs-map .geo-tile-layer{-webkit-transform-origin:0 0;transform-origin:0 0;line-height:0;font-size:0}.geojs-map.annotation-input{cursor:crosshair}.geojs-map.highlight-focus:after{content:\"\";display:block;position:absolute;box-sizing:border-box;left:0;top:0;right:0;bottom:0;border:3px solid Highlight;opacity:1;-ms-filter:none;filter:none;transition:opacity 0s;visibility:hidden}.geojs-map.highlight-focus:focus:after{visibility:visible;transition:opacity 2.5s ease-in;opacity:0;-ms-filter:\"progid:DXImageTransform.Microsoft.Alpha(Opacity=0)\";filter:alpha(opacity=0)}.geo-tile-container{position:absolute}.geo-tile-container.crop{overflow:hidden}", ""]);
-
-	// exports
-
-
-/***/ }),
-/* 5 */
-/***/ (function(module, exports) {
-
-	/*
-		MIT License http://www.opensource.org/licenses/mit-license.php
-		Author Tobias Koppers @sokra
-	*/
-	// css base code, injected by the css-loader
-	module.exports = function() {
-		var list = [];
-
-		// return the list of modules as css string
-		list.toString = function toString() {
-			var result = [];
-			for(var i = 0; i < this.length; i++) {
-				var item = this[i];
-				if(item[2]) {
-					result.push("@media " + item[2] + "{" + item[1] + "}");
-				} else {
-					result.push(item[1]);
-				}
-			}
-			return result.join("");
-		};
-
-		// import a list of modules into the list
-		list.i = function(modules, mediaQuery) {
-			if(typeof modules === "string")
-				modules = [[null, modules, ""]];
-			var alreadyImportedModules = {};
-			for(var i = 0; i < this.length; i++) {
-				var id = this[i][0];
-				if(typeof id === "number")
-					alreadyImportedModules[id] = true;
-			}
-			for(i = 0; i < modules.length; i++) {
-				var item = modules[i];
-				// skip already imported module
-				// this implementation is not 100% perfect for weird media query combinations
-				//  when a module is imported multiple times with different media queries.
-				//  I hope this will never occur (Hey this way we have smaller bundles)
-				if(typeof item[0] !== "number" || !alreadyImportedModules[item[0]]) {
-					if(mediaQuery && !item[2]) {
-						item[2] = mediaQuery;
-					} else if(mediaQuery) {
-						item[2] = "(" + item[2] + ") and (" + mediaQuery + ")";
-					}
-					list.push(item);
-				}
-			}
-		};
-		return list;
-	};
-
-
-/***/ }),
-/* 6 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/*
-		MIT License http://www.opensource.org/licenses/mit-license.php
-		Author Tobias Koppers @sokra
-	*/
-	var stylesInDom = {},
-		memoize = function(fn) {
-			var memo;
-			return function () {
-				if (typeof memo === "undefined") memo = fn.apply(this, arguments);
-				return memo;
-			};
-		},
-		isOldIE = memoize(function() {
-			return /msie [6-9]\b/.test(self.navigator.userAgent.toLowerCase());
-		}),
-		getHeadElement = memoize(function () {
-			return document.head || document.getElementsByTagName("head")[0];
-		}),
-		singletonElement = null,
-		singletonCounter = 0,
-		styleElementsInsertedAtTop = [];
-
-	module.exports = function(list, options) {
-		if(false) {
-			if(typeof document !== "object") throw new Error("The style-loader cannot be used in a non-browser environment");
-		}
-
-		options = options || {};
-		// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
-		// tags it will allow on a page
-		if (typeof options.singleton === "undefined") options.singleton = isOldIE();
-
-		// By default, add <style> tags to the bottom of <head>.
-		if (typeof options.insertAt === "undefined") options.insertAt = "bottom";
-
-		var styles = listToStyles(list);
-		addStylesToDom(styles, options);
-
-		return function update(newList) {
-			var mayRemove = [];
-			for(var i = 0; i < styles.length; i++) {
-				var item = styles[i];
-				var domStyle = stylesInDom[item.id];
-				domStyle.refs--;
-				mayRemove.push(domStyle);
-			}
-			if(newList) {
-				var newStyles = listToStyles(newList);
-				addStylesToDom(newStyles, options);
-			}
-			for(var i = 0; i < mayRemove.length; i++) {
-				var domStyle = mayRemove[i];
-				if(domStyle.refs === 0) {
-					for(var j = 0; j < domStyle.parts.length; j++)
-						domStyle.parts[j]();
-					delete stylesInDom[domStyle.id];
-				}
-			}
-		};
-	}
-
-	function addStylesToDom(styles, options) {
-		for(var i = 0; i < styles.length; i++) {
-			var item = styles[i];
-			var domStyle = stylesInDom[item.id];
-			if(domStyle) {
-				domStyle.refs++;
-				for(var j = 0; j < domStyle.parts.length; j++) {
-					domStyle.parts[j](item.parts[j]);
-				}
-				for(; j < item.parts.length; j++) {
-					domStyle.parts.push(addStyle(item.parts[j], options));
-				}
-			} else {
-				var parts = [];
-				for(var j = 0; j < item.parts.length; j++) {
-					parts.push(addStyle(item.parts[j], options));
-				}
-				stylesInDom[item.id] = {id: item.id, refs: 1, parts: parts};
-			}
-		}
-	}
-
-	function listToStyles(list) {
-		var styles = [];
-		var newStyles = {};
-		for(var i = 0; i < list.length; i++) {
-			var item = list[i];
-			var id = item[0];
-			var css = item[1];
-			var media = item[2];
-			var sourceMap = item[3];
-			var part = {css: css, media: media, sourceMap: sourceMap};
-			if(!newStyles[id])
-				styles.push(newStyles[id] = {id: id, parts: [part]});
-			else
-				newStyles[id].parts.push(part);
-		}
-		return styles;
-	}
-
-	function insertStyleElement(options, styleElement) {
-		var head = getHeadElement();
-		var lastStyleElementInsertedAtTop = styleElementsInsertedAtTop[styleElementsInsertedAtTop.length - 1];
-		if (options.insertAt === "top") {
-			if(!lastStyleElementInsertedAtTop) {
-				head.insertBefore(styleElement, head.firstChild);
-			} else if(lastStyleElementInsertedAtTop.nextSibling) {
-				head.insertBefore(styleElement, lastStyleElementInsertedAtTop.nextSibling);
-			} else {
-				head.appendChild(styleElement);
-			}
-			styleElementsInsertedAtTop.push(styleElement);
-		} else if (options.insertAt === "bottom") {
-			head.appendChild(styleElement);
-		} else {
-			throw new Error("Invalid value for parameter 'insertAt'. Must be 'top' or 'bottom'.");
-		}
-	}
-
-	function removeStyleElement(styleElement) {
-		styleElement.parentNode.removeChild(styleElement);
-		var idx = styleElementsInsertedAtTop.indexOf(styleElement);
-		if(idx >= 0) {
-			styleElementsInsertedAtTop.splice(idx, 1);
-		}
-	}
-
-	function createStyleElement(options) {
-		var styleElement = document.createElement("style");
-		styleElement.type = "text/css";
-		insertStyleElement(options, styleElement);
-		return styleElement;
-	}
-
-	function createLinkElement(options) {
-		var linkElement = document.createElement("link");
-		linkElement.rel = "stylesheet";
-		insertStyleElement(options, linkElement);
-		return linkElement;
-	}
-
-	function addStyle(obj, options) {
-		var styleElement, update, remove;
-
-		if (options.singleton) {
-			var styleIndex = singletonCounter++;
-			styleElement = singletonElement || (singletonElement = createStyleElement(options));
-			update = applyToSingletonTag.bind(null, styleElement, styleIndex, false);
-			remove = applyToSingletonTag.bind(null, styleElement, styleIndex, true);
-		} else if(obj.sourceMap &&
-			typeof URL === "function" &&
-			typeof URL.createObjectURL === "function" &&
-			typeof URL.revokeObjectURL === "function" &&
-			typeof Blob === "function" &&
-			typeof btoa === "function") {
-			styleElement = createLinkElement(options);
-			update = updateLink.bind(null, styleElement);
-			remove = function() {
-				removeStyleElement(styleElement);
-				if(styleElement.href)
-					URL.revokeObjectURL(styleElement.href);
-			};
-		} else {
-			styleElement = createStyleElement(options);
-			update = applyToTag.bind(null, styleElement);
-			remove = function() {
-				removeStyleElement(styleElement);
-			};
-		}
-
-		update(obj);
-
-		return function updateStyle(newObj) {
-			if(newObj) {
-				if(newObj.css === obj.css && newObj.media === obj.media && newObj.sourceMap === obj.sourceMap)
-					return;
-				update(obj = newObj);
-			} else {
-				remove();
-			}
-		};
-	}
-
-	var replaceText = (function () {
-		var textStore = [];
-
-		return function (index, replacement) {
-			textStore[index] = replacement;
-			return textStore.filter(Boolean).join('\n');
-		};
-	})();
-
-	function applyToSingletonTag(styleElement, index, remove, obj) {
-		var css = remove ? "" : obj.css;
-
-		if (styleElement.styleSheet) {
-			styleElement.styleSheet.cssText = replaceText(index, css);
-		} else {
-			var cssNode = document.createTextNode(css);
-			var childNodes = styleElement.childNodes;
-			if (childNodes[index]) styleElement.removeChild(childNodes[index]);
-			if (childNodes.length) {
-				styleElement.insertBefore(cssNode, childNodes[index]);
-			} else {
-				styleElement.appendChild(cssNode);
-			}
-		}
-	}
-
-	function applyToTag(styleElement, obj) {
-		var css = obj.css;
-		var media = obj.media;
-
-		if(media) {
-			styleElement.setAttribute("media", media)
-		}
-
-		if(styleElement.styleSheet) {
-			styleElement.styleSheet.cssText = css;
-		} else {
-			while(styleElement.firstChild) {
-				styleElement.removeChild(styleElement.firstChild);
-			}
-			styleElement.appendChild(document.createTextNode(css));
-		}
-	}
-
-	function updateLink(linkElement, obj) {
-		var css = obj.css;
-		var sourceMap = obj.sourceMap;
-
-		if(sourceMap) {
-			// http://stackoverflow.com/a/26603875
-			css += "\n/*# sourceMappingURL=data:application/json;base64," + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + " */";
-		}
-
-		var blob = new Blob([css], { type: "text/css" });
-
-		var oldSrc = linkElement.href;
-
-		linkElement.href = URL.createObjectURL(blob);
-
-		if(oldSrc)
-			URL.revokeObjectURL(oldSrc);
-	}
-
-
-/***/ }),
-/* 7 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var geo_event = __webpack_require__(9);
-	var geo_action = __webpack_require__(10);
-	var transform = __webpack_require__(11);
-	var util = __webpack_require__(83);
-	var registerAnnotation = __webpack_require__(201).registerAnnotation;
-	var lineFeature = __webpack_require__(206);
-	var pointFeature = __webpack_require__(212);
-	var polygonFeature = __webpack_require__(217);
-	var textFeature = __webpack_require__(218);
-
-	var annotationId = 0;
-
-	var annotationState = {
-	  create: 'create',
-	  done: 'done',
-	  edit: 'edit'
-	};
-
-	var annotationActionOwner = 'annotationAction';
-
-	/**
-	 * Base annotation class.
-	 *
-	 * @class
-	 * @alias geo.annotation
-	 * @param {string} type The type of annotation.  These should be registered
-	 *    with utils.registerAnnotation and can be listed with same function.
-	 * @param {object?} [args] Individual annotations have additional options.
-	 * @param {string} [args.name] A name for the annotation.  This defaults to
-	 *    the type with a unique ID suffixed to it.
-	 * @param {geo.annotationLayer} [arg.layer] A reference to the controlling
-	 *    layer.  This is used for coordinate transforms.
-	 * @param {string} [args.state] Initial annotation state.  One of the
-	 *    `geo.annotation.state` values.
-	 * @param {boolean|string[]} [args.showLabel=true] `true` to show the
-	 *    annotation label on annotations in done or edit states.  Alternately, a
-	 *    list of states in which to show the label.  Falsy to not show the label.
-	 * @returns {geo.annotation}
-	 */
-	var annotation = function (type, args) {
-	  'use strict';
-	  if (!(this instanceof annotation)) {
-	    return new annotation(type, args);
-	  }
-
-	  annotationId += 1;
-	  var m_options = $.extend({}, {showLabel: true}, args || {}),
-	      m_id = annotationId,
-	      m_name = m_options.name || (
-	        type.charAt(0).toUpperCase() + type.substr(1) + ' ' + annotationId),
-	      m_label = m_options.label || null,
-	      m_description = m_options.description || undefined,
-	      m_type = type,
-	      m_layer = m_options.layer,
-	      /* one of annotationState.* */
-	      m_state = m_options.state || annotationState.done;
-	  delete m_options.state;
-	  delete m_options.layer;
-	  delete m_options.name;
-	  delete m_options.label;
-	  delete m_options.description;
-
-	  /**
-	   * Clean up any resources that the annotation is using.
-	   */
-	  this._exit = function () {
-	  };
-
-	  /**
-	   * Get a unique annotation id.
-	   *
-	   * @returns {number} The annotation id.
-	   */
-	  this.id = function () {
-	    return m_id;
-	  };
-
-	  /**
-	   * Get or set the name of this annotation.
-	   *
-	   * @param {string|undefined} arg If `undefined`, return the name, otherwise
-	   *    change it.  When setting the name, the value is trimmed of
-	   *    whitespace.  The name will not be changed to an empty string.
-	   * @returns {this|string} The current name or this annotation.
-	   */
-	  this.name = function (arg) {
-	    if (arg === undefined) {
-	      return m_name;
-	    }
-	    if (arg !== null && ('' + arg).trim()) {
-	      arg = ('' + arg).trim();
-	      if (arg !== m_name) {
-	        m_name = arg;
-	        this.modified();
-	      }
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Get or set the label of this annotation.
-	   *
-	   * @param {string|null|undefined} arg If `undefined`, return the label,
-	   *    otherwise change it.  `null` to clear the label.
-	   * @param {boolean} noFallback If not truthy and the label is `null`, return
-	   *    the name, otherwise return the actual value for label.
-	   * @returns {this|string} The current label or this annotation.
-	   */
-	  this.label = function (arg, noFallback) {
-	    if (arg === undefined) {
-	      return m_label === null && !noFallback ? m_name : m_label;
-	    }
-	    if (arg !== m_label) {
-	      m_label = arg;
-	      this.modified();
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Return the coordinate associated with the label.
-	   *
-	   * @returns {geo.geoPosition|undefined} The map gcs position for the label,
-	   *    or `undefined` if no such position exists.
-	   */
-	  this._labelPosition = function () {
-	    var coor = this._coordinates(), position = {x: 0, y: 0}, i;
-	    if (!coor || !coor.length) {
-	      return undefined;
-	    }
-	    if (coor.length === 1) {
-	      return coor[0];
-	    }
-	    for (i = 0; i < coor.length; i += 1) {
-	      position.x += coor[i].x;
-	      position.y += coor[i].y;
-	    }
-	    position.x /= coor.length;
-	    position.y /= coor.length;
-	    return position;
-	  };
-
-	  /**
-	   * If the label should be shown, get a record of the label that can be used
-	   * in a `geo.textFeature`.
-	   *
-	   * @returns {geo.annotationLayer.labelRecord|undefined} A label record, or
-	   *    `undefined` if it should not be shown.
-	   */
-	  this.labelRecord = function () {
-	    var show = this.options('showLabel');
-	    if (!show) {
-	      return;
-	    }
-	    var state = this.state();
-	    if ((show === true && state === annotationState.create) ||
-	        (show !== true && show.indexOf(state) < 0)) {
-	      return;
-	    }
-	    var style = this.options('labelStyle');
-	    var labelRecord = {
-	      text: this.label(),
-	      position: this._labelPosition()
-	    };
-	    if (!labelRecord.position) {
-	      return;
-	    }
-	    if (style) {
-	      labelRecord.style = style;
-	    }
-	    return labelRecord;
-	  };
-
-	  /**
-	   * Get or set the description of this annotation.
-	   *
-	   * @param {string|undefined} arg If `undefined`, return the description,
-	   *    otherwise change it.
-	   * @returns {this|string} The current description or this annotation.
-	   */
-	  this.description = function (arg) {
-	    if (arg === undefined) {
-	      return m_description;
-	    }
-	    if (arg !== m_description) {
-	      m_description = arg;
-	      this.modified();
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Get or set the annotation layer associated with this annotation.
-	   *
-	   * @param {geo.annotationLayer|undefined} arg if undefined, return the layer,
-	   *    otherwise change it.
-	   * @returns {this|geo.annotationLayer} the current layer or this annotation.
-	   */
-	  this.layer = function (arg) {
-	    if (arg === undefined) {
-	      return m_layer;
-	    }
-	    m_layer = arg;
-	    return this;
-	  };
-
-	  /**
-	   * Get or set the state of this annotation.
-	   *
-	   * @param {string|undefined} arg If `undefined`, return the state,
-	   *    otherwise change it.  This should be one of the
-	   *    `geo.annotation.state` values.
-	   * @returns {this|string} The current state or this annotation.
-	   */
-	  this.state = function (arg) {
-	    if (arg === undefined) {
-	      return m_state;
-	    }
-	    if (m_state !== arg) {
-	      m_state = arg;
-	      if (this.layer()) {
-	        this.layer().geoTrigger(geo_event.annotation.state, {
-	          annotation: this
-	        });
-	      }
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Return actions needed for the specified state of this annotation.
-	   *
-	   * @param {string} [state] The state to return actions for.  Defaults to
-	   *    the current state.
-	   * @returns {geo.actionRecord[]} A list of actions.
-	   */
-	  this.actions = function () {
-	    return [];
-	  };
-
-	  /**
-	   * Process any actions for this annotation.
-	   *
-	   * @param {geo.event} evt The action event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if the
-	   *    annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.processAction = function () {
-	    return undefined;
-	  };
-
-	  /**
-	   * Set or get options.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the options object.
-	   *    If a string, either set or return the option of that name.  If an
-	   *    object, update the options with the object's values.
-	   * @param {object} [arg2] If `arg1` is a string and this is defined, set
-	   *    the option to this value.
-	   * @returns {object|this} If options are set, return the annotation,
-	   *    otherwise return the requested option or the set of options.
-	   */
-	  this.options = function (arg1, arg2) {
-	    if (arg1 === undefined) {
-	      return m_options;
-	    }
-	    if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_options[arg1];
-	    }
-	    if (arg2 === undefined) {
-	      m_options = $.extend(true, m_options, arg1);
-	      /* For style objects, reextend them without recursiion.  This allows
-	       * setting colors without an opacity field, for instance. */
-	      ['style', 'editStyle', 'labelStyle'].forEach(function (key) {
-	        if (arg1[key] !== undefined) {
-	          $.extend(m_options[key], arg1[key]);
-	        }
-	      });
-	    } else {
-	      m_options[arg1] = arg2;
-	    }
-	    if (m_options.coordinates) {
-	      var coor = m_options.coordinates;
-	      delete m_options.coordinates;
-	      this._coordinates(coor);
-	    }
-	    if (m_options.name !== undefined) {
-	      var name = m_options.name;
-	      delete m_options.name;
-	      this.name(name);
-	    }
-	    if (m_options.label !== undefined) {
-	      var label = m_options.label;
-	      delete m_options.label;
-	      this.label(label);
-	    }
-	    if (m_options.description !== undefined) {
-	      var description = m_options.description;
-	      delete m_options.description;
-	      this.description(description);
-	    }
-	    this.modified();
-	    return this;
-	  };
-
-	  /**
-	   * Set or get style.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the current style
-	   *    object.  If a string and `arg2` is undefined, return the style
-	   *    associated with the specified key.  If a string and `arg2` is defined,
-	   *    set the named style to the specified value.  Otherwise, extend the
-	   *    current style with the values in the specified object.
-	   * @param {*} [arg2] If `arg1` is a string, the new value for that style.
-	   * @returns {object|this} Either the entire style object, the value of a
-	   *    specific style, or the current class instance.
-	   */
-	  this.style = function (arg1, arg2) {
-	    if (arg1 === undefined) {
-	      return m_options.style;
-	    }
-	    if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_options.style[arg1];
-	    }
-	    if (arg2 === undefined) {
-	      m_options.style = $.extend(true, m_options.style, arg1);
-	    } else {
-	      m_options.style[arg1] = arg2;
-	    }
-	    this.modified();
-	    return this;
-	  };
-
-	  /**
-	   * Set or get edit style.  These are the styles used in edit and create mode.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the current style
-	   *    object.  If a string and `arg2` is undefined, return the style
-	   *    associated with the specified key.  If a string and `arg2` is defined,
-	   *    set the named style to the specified value.  Otherwise, extend the
-	   *    current style with the values in the specified object.
-	   * @param {*} [arg2] If `arg1` is a string, the new value for that style.
-	   * @returns {object|this} Either the entire style object, the value of a
-	   *    specific style, or the current class instance.
-	   */
-	  this.editStyle = function (arg1, arg2) {
-	    if (arg1 === undefined) {
-	      return m_options.editStyle;
-	    }
-	    if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_options.editStyle[arg1];
-	    }
-	    if (arg2 === undefined) {
-	      m_options.editStyle = $.extend(true, m_options.editStyle, arg1);
-	    } else {
-	      m_options.editStyle[arg1] = arg2;
-	    }
-	    this.modified();
-	    return this;
-	  };
-
-	  /**
-	   * Get the type of this annotation.
-	   *
-	   * @returns {string} The annotation type.
-	   */
-	  this.type = function () {
-	    return m_type;
-	  };
-
-	  /**
-	   * Get a list of renderable features for this annotation.  The list index is
-	   * functionally a z-index for the feature.  Each entry is a dictionary with
-	   * the key as the feature name (such as `line`, `quad`, or `polygon`), and
-	   * the value a dictionary of values to pass to the feature constructor, such
-	   * as `style` and `coordinates`.
-	   *
-	   * @returns {array} An array of features.
-	   */
-	  this.features = function () {
-	    return [];
-	  };
-
-	  /**
-	   * Handle a mouse click on this annotation.  If the event is processed,
-	   * evt.handled should be set to `true` to prevent further processing.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if
-	   *    the annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.mouseClick = function (evt) {
-	    return undefined;
-	  };
-
-	  /**
-	   * Handle a mouse move on this annotation.
-	   *
-	   * @param {geo.event} evt The mouse move event.
-	   * @returns {boolean} Truthy to update the annotation, falsy to not
-	   *    update anything.
-	   */
-	  this.mouseMove = function (evt) {
-	    return undefined;
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation in the map gcs coordinate
-	   * system.
-	   *
-	   * @param {geo.geoPosition[]} [coordinates] An optional array of coordinates
-	   *  to set.
-	   * @returns {geo.geoPosition[]} The current array of coordinates.
-	   */
-	  this._coordinates = function (coordinates) {
-	    return [];
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.geoPosition[]} An array of coordinates.
-	   */
-	  this.coordinates = function (gcs) {
-	    var coord = this._coordinates() || [];
-	    if (this.layer()) {
-	      var map = this.layer().map();
-	      gcs = (gcs === null ? map.gcs() : (
-	             gcs === undefined ? map.ingcs() : gcs));
-	      if (gcs !== map.gcs()) {
-	        coord = transform.transformCoordinates(map.gcs(), gcs, coord);
-	      }
-	    }
-	    return coord;
-	  };
-
-	  /**
-	   * Mark this annotation as modified.  This just marks the parent layer as
-	   * modified.
-	   *
-	   * @returns {this} The annotation.
-	   */
-	  this.modified = function () {
-	    if (this.layer()) {
-	      this.layer().modified();
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Draw this annotation.  This just updates and draws the parent layer.
-	   *
-	   * @returns {this} The annotation.
-	   */
-	  this.draw = function () {
-	    if (this.layer()) {
-	      this.layer()._update();
-	      this.layer().draw();
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Return a list of styles that should be preserved in a geojson
-	   * representation of the annotation.
-	   *
-	   * @returns {string[]} A list of style names to store.
-	   */
-	  this._geojsonStyles = function () {
-	    return [
-	      'closed', 'fill', 'fillColor', 'fillOpacity', 'lineCap', 'lineJoin',
-	      'radius', 'stroke', 'strokeColor', 'strokeOffset', 'strokeOpacity',
-	      'strokeWidth'];
-	  };
-
-	  /**
-	   * Return the coordinates to be stored in a geojson geometry object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {array} An array of flattened coordinates in the interface gcs
-	   *    coordinate system.  `undefined` if this annotation is incomplete.
-	   */
-	  this._geojsonCoordinates = function (gcs) {
-	    return [];
-	  };
-
-	  /**
-	   * Return the geometry type that is used to store this annotation in geojson.
-	   *
-	   * @returns {string} A geojson geometry type.
-	   */
-	  this._geojsonGeometryType = function () {
-	    return '';
-	  };
-
-	  /**
-	   * Return the annotation as a geojson object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @param {boolean} [includeCrs] If truthy, include the coordinate system.
-	   * @returns {object} The annotation as a geojson object, or `undefined` if it
-	   *    should not be represented (for instance, while it is being created).
-	   */
-	  this.geojson = function (gcs, includeCrs) {
-	    var coor = this._geojsonCoordinates(gcs),
-	        geotype = this._geojsonGeometryType(),
-	        styles = this._geojsonStyles(),
-	        objStyle = this.options('style') || {},
-	        objLabelStyle = this.options('labelStyle') || {},
-	        i, key, value;
-	    if (!coor || !coor.length || !geotype) {
-	      return;
-	    }
-	    var obj = {
-	      type: 'Feature',
-	      geometry: {
-	        type: geotype,
-	        coordinates: coor
-	      },
-	      properties: {
-	        annotationType: m_type,
-	        name: this.name(),
-	        annotationId: this.id()
-	      }
-	    };
-	    if (m_label) {
-	      obj.properties.label = m_label;
-	    }
-	    if (m_description) {
-	      obj.properties.description = m_description;
-	    }
-	    if (this.options('showLabel') === false) {
-	      obj.properties.showLabel = this.options('showLabel');
-	    }
-	    for (i = 0; i < styles.length; i += 1) {
-	      key = styles[i];
-	      value = util.ensureFunction(objStyle[key])();
-	      if (value !== undefined) {
-	        if (key.toLowerCase().match(/color$/)) {
-	          value = util.convertColorToHex(value, 'needed');
-	        }
-	        obj.properties[key] = value;
-	      }
-	    }
-	    for (i = 0; i < textFeature.usedStyles.length; i += 1) {
-	      key = textFeature.usedStyles[i];
-	      value = util.ensureFunction(objLabelStyle[key])();
-	      if (value !== undefined) {
-	        if (key.toLowerCase().match(/color$/)) {
-	          value = util.convertColorToHex(value, 'needed');
-	        }
-	        obj.properties['label' + key.charAt(0).toUpperCase() + key.slice(1)] = value;
-	      }
-	    }
-	    if (includeCrs) {
-	      var map = this.layer().map();
-	      gcs = (gcs === null ? map.gcs() : (
-	             gcs === undefined ? map.ingcs() : gcs));
-	      obj.crs = {
-	        type: 'name',
-	        properties: {
-	          type: 'proj4',
-	          name: gcs
-	        }
-	      };
-	    }
-	    return obj;
-	  };
-	};
-
-	/**
-	 * Rectangle annotation class.
-	 *
-	 * Rectangles are always rendered as polygons.  This could be changed -- if no
-	 * stroke is specified, the quad feature would be sufficient and work on more
-	 * renderers.
-	 *
-	 * @class
-	 * @alias geo.rectangleAnnotation
-	 * @extends geo.annotation
-	 *
-	 * @param {object?} [args] Options for the annotation.
-	 * @param {string} [args.name] A name for the annotation.  This defaults to
-	 *    the type with a unique ID suffixed to it.
-	 * @param {string} [args.state] initial annotation state.  One of the
-	 *    annotation.state values.
-	 * @param {boolean|string[]} [args.showLabel=true] `true` to show the
-	 *    annotation label on annotations in done or edit states.  Alternately, a
-	 *    list of states in which to show the label.  Falsy to not show the label.
-	 * @param {geo.geoPosition[]} [args.corners] A list of four corners in map
-	 *    gcs coordinates.  These must be in order around the perimeter of the
-	 *    rectangle (in either direction).
-	 * @param {geo.geoPosition[]} [args.coordinates] An alternate name for
-	 *    `args.corners`.
-	 * @param {object} [args.style] The style to apply to a finished rectangle.
-	 *    This uses styles for polygons, including `fill`, `fillColor`,
-	 *    `fillOpacity`, `stroke`, `strokeWidth`, `strokeColor`, and
-	 *    `strokeOpacity`.
-	 * @param {object} [args.editStyle] The style to apply to a rectangle in edit
-	 *    mode.  This uses styles for polygons and lines, including `fill`,
-	 *    `fillColor`, `fillOpacity`, `stroke`, `strokeWidth`, `strokeColor`, and
-	 *    `strokeOpacity`.
-	 */
-	var rectangleAnnotation = function (args) {
-	  'use strict';
-	  if (!(this instanceof rectangleAnnotation)) {
-	    return new rectangleAnnotation(args);
-	  }
-
-	  args = $.extend(true, {}, {
-	    style: {
-	      fill: true,
-	      fillColor: {r: 0, g: 1, b: 0},
-	      fillOpacity: 0.25,
-	      polygon: function (d) { return d.polygon; },
-	      stroke: true,
-	      strokeColor: {r: 0, g: 0, b: 0},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      uniformPolygon: true
-	    },
-	    editStyle: {
-	      fill: true,
-	      fillColor: {r: 0.3, g: 0.3, b: 0.3},
-	      fillOpacity: 0.25,
-	      polygon: function (d) { return d.polygon; },
-	      stroke: true,
-	      strokeColor: {r: 0, g: 0, b: 1},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      uniformPolygon: true
-	    }
-	  }, args || {});
-	  args.corners = args.corners || args.coordinates || [];
-	  delete args.coordinates;
-	  annotation.call(this, 'rectangle', args);
-
-	  /**
-	   * Return actions needed for the specified state of this annotation.
-	   *
-	   * @param {string} [state] The state to return actions for.  Defaults to
-	   *    the current state.
-	   * @returns {geo.actionRecord[]} A list of actions.
-	   */
-	  this.actions = function (state) {
-	    if (!state) {
-	      state = this.state();
-	    }
-	    switch (state) {
-	      case annotationState.create:
-	        return [{
-	          action: geo_action.annotation_rectangle,
-	          name: 'rectangle create',
-	          owner: annotationActionOwner,
-	          input: 'left',
-	          modifiers: {shift: false, ctrl: false},
-	          selectionRectangle: true
-	        }];
-	      default:
-	        return [];
-	    }
-	  };
-
-	  /**
-	   * Process any actions for this annotation.
-	   *
-	   * @param {geo.event} evt The action event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if the
-	   *    annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.processAction = function (evt) {
-	    var layer = this.layer();
-	    if (this.state() !== annotationState.create || !layer ||
-	        evt.event !== geo_event.actionselection ||
-	        evt.state.action !== geo_action.annotation_rectangle) {
-	      return;
-	    }
-	    var map = layer.map();
-	    this.options('corners', [
-	      /* Keep in map gcs, not interface gcs to avoid wrapping issues */
-	      map.displayToGcs({x: evt.lowerLeft.x, y: evt.lowerLeft.y}, null),
-	      map.displayToGcs({x: evt.lowerLeft.x, y: evt.upperRight.y}, null),
-	      map.displayToGcs({x: evt.upperRight.x, y: evt.upperRight.y}, null),
-	      map.displayToGcs({x: evt.upperRight.x, y: evt.lowerLeft.y}, null)
-	    ]);
-	    this.state(annotationState.done);
-	    return 'done';
-	  };
-
-	  /**
-	   * Get a list of renderable features for this annotation.
-	   *
-	   * @returns {array} An array of features.
-	   */
-	  this.features = function () {
-	    var opt = this.options(),
-	        state = this.state(),
-	        features;
-	    switch (state) {
-	      case annotationState.create:
-	        features = [];
-	        if (opt.corners && opt.corners.length >= 4) {
-	          features = [{
-	            polygon: {
-	              polygon: opt.corners,
-	              style: opt.editStyle
-	            }
-	          }];
-	        }
-	        break;
-	      default:
-	        features = [{
-	          polygon: {
-	            polygon: opt.corners,
-	            style: opt.style
-	          }
-	        }];
-	        break;
-	    }
-	    return features;
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation in the map gcs coordinate
-	   * system.
-	   *
-	   * @param {geo.geoPosition[]} [coordinates] An optional array of coordinates
-	   *  to set.
-	   * @returns {geo.geoPosition[]} The current array of coordinates.
-	   */
-	  this._coordinates = function (coordinates) {
-	    if (coordinates && coordinates.length >= 4) {
-	      this.options('corners', coordinates.slice(0, 4));
-	      /* Should we ensure that the four points form a rectangle in the current
-	       * projection, though this might not be rectangular in another gcs? */
-	    }
-	    return this.options('corners');
-	  };
-
-	  /**
-	   * Return the coordinates to be stored in a geojson geometry object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {array} An array of flattened coordinates in the interface gcs
-	   *    coordinate system.  `undefined` if this annotation is incomplete.
-	   */
-	  this._geojsonCoordinates = function (gcs) {
-	    var src = this.coordinates(gcs);
-	    if (!src || this.state() === annotationState.create || src.length < 4) {
-	      return;
-	    }
-	    var coor = [];
-	    for (var i = 0; i < 4; i += 1) {
-	      coor.push([src[i].x, src[i].y]);
-	    }
-	    coor.push([src[0].x, src[0].y]);
-	    return [coor];
-	  };
-
-	  /**
-	   * Return the geometry type that is used to store this annotation in geojson.
-	   *
-	   * @returns {string} A geojson geometry type.
-	   */
-	  this._geojsonGeometryType = function () {
-	    return 'Polygon';
-	  };
-
-	  /**
-	   * Return a list of styles that should be preserved in a geojson
-	   * representation of the annotation.
-	   *
-	   * @returns {string[]} A list of style names to store.
-	   */
-	  this._geojsonStyles = function () {
-	    return [
-	      'fill', 'fillColor', 'fillOpacity', 'lineCap', 'lineJoin', 'stroke',
-	      'strokeColor', 'strokeOffset', 'strokeOpacity', 'strokeWidth'];
-	  };
-
-	  /**
-	   * Set three corners based on an initial corner and a mouse event.
-	   *
-	   * @param {geo.geoPosition} corners An array of four corners to update.
-	   * @param {geo.event} evt The mouse move event.
-	   */
-	  this._setCornersFromMouse = function (corners, evt) {
-	    var map = this.layer().map(),
-	        c0 = map.gcsToDisplay({x: corners[0].x, y: corners[0].y}, null),
-	        c2 = map.gcsToDisplay(evt.mapgcs, null),
-	        c1 = {x: c2.x, y: c0.y},
-	        c3 = {x: c0.x, y: c2.y};
-	    corners[2] = $.extend({}, evt.mapgcs);
-	    corners[1] = map.displayToGcs(c1, null);
-	    corners[3] = map.displayToGcs(c3, null);
-	  };
-
-	  /**
-	   * Handle a mouse move on this annotation.
-	   *
-	   * @param {geo.event} evt The mouse move event.
-	   * @returns {boolean} Truthy to update the annotation, falsy to not
-	   *    update anything.
-	   */
-	  this.mouseMove = function (evt) {
-	    if (this.state() !== annotationState.create) {
-	      return;
-	    }
-	    var corners = this.options('corners');
-	    if (corners.length) {
-	      this._setCornersFromMouse(corners, evt);
-	      return true;
-	    }
-	  };
-
-	  /**
-	   * Handle a mouse click on this annotation.  If the event is processed,
-	   * evt.handled should be set to `true` to prevent further processing.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if
-	   *    the annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.mouseClick = function (evt) {
-	    var layer = this.layer();
-	    if (this.state() !== annotationState.create || !layer) {
-	      return;
-	    }
-	    if (!evt.buttonsDown.left && !evt.buttonsDown.right) {
-	      return;
-	    }
-	    var corners = this.options('corners');
-	    if (evt.buttonsDown.right && !corners.length) {
-	      return;
-	    }
-	    evt.handled = true;
-	    if (corners.length) {
-	      this._setCornersFromMouse(corners, evt);
-	      this.state(annotationState.done);
-	      return 'done';
-	    }
-	    if (evt.buttonsDown.left) {
-	      corners.push($.extend({}, evt.mapgcs));
-	      corners.push($.extend({}, evt.mapgcs));
-	      corners.push($.extend({}, evt.mapgcs));
-	      corners.push($.extend({}, evt.mapgcs));
-	      return true;
-	    }
-	  };
-
-	};
-	inherit(rectangleAnnotation, annotation);
-
-	var rectangleRequiredFeatures = {};
-	rectangleRequiredFeatures[polygonFeature.capabilities.feature] = true;
-	registerAnnotation('rectangle', rectangleAnnotation, rectangleRequiredFeatures);
-
-	/**
-	 * Polygon annotation class
-	 *
-	 * When complete, polygons are rendered as polygons.  During creation they are
-	 * rendered as lines and polygons.
-	 *
-	 * @class
-	 * @alias geo.polygonAnnotation
-	 * @extends geo.annotation
-	 *
-	 * @param {object?} [args] Options for the annotation.
-	 * @param {string} [args.name] A name for the annotation.  This defaults to
-	 *    the type with a unique ID suffixed to it.
-	 * @param {string} [args.state] initial annotation state.  One of the
-	 *    annotation.state values.
-	 * @param {boolean|string[]} [args.showLabel=true] `true` to show the
-	 *    annotation label on annotations in done or edit states.  Alternately, a
-	 *    list of states in which to show the label.  Falsy to not show the label.
-	 * @param {geo.geoPosition[]} [args.vertices] A list of vertices in map gcs
-	 *    coordinates.  These must be in order around the perimeter of the
-	 *    polygon (in either direction).
-	 * @param {geo.geoPosition[]} [args.coordinates] An alternate name for
-	 *    `args.vertices`.
-	 * @param {object} [args.style] The style to apply to a finished polygon.
-	 *    This uses styles for polygons, including `fill`, `fillColor`,
-	 *    `fillOpacity`, `stroke`, `strokeWidth`, `strokeColor`, and
-	 *    `strokeOpacity`.
-	 * @param {object} [args.editStyle] The style to apply to a polygon in edit
-	 *    mode.  This uses styles for polygons and lines, including `fill`,
-	 *    `fillColor`, `fillOpacity`, `stroke`, `strokeWidth`, `strokeColor`, and
-	 *    `strokeOpacity`.
-	 */
-	var polygonAnnotation = function (args) {
-	  'use strict';
-	  if (!(this instanceof polygonAnnotation)) {
-	    return new polygonAnnotation(args);
-	  }
-
-	  var m_this = this;
-
-	  args = $.extend(true, {}, {
-	    style: {
-	      fill: true,
-	      fillColor: {r: 0, g: 1, b: 0},
-	      fillOpacity: 0.25,
-	      polygon: function (d) { return d.polygon; },
-	      stroke: true,
-	      strokeColor: {r: 0, g: 0, b: 0},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      uniformPolygon: true
-	    },
-	    editStyle: {
-	      closed: false,
-	      fill: true,
-	      fillColor: {r: 0.3, g: 0.3, b: 0.3},
-	      fillOpacity: 0.25,
-	      line: function (d) {
-	        /* Return an array that has the same number of items as we have
-	         * vertices. */
-	        return Array.apply(null, Array(m_this.options('vertices').length)).map(
-	            function () { return d; });
-	      },
-	      polygon: function (d) { return d.polygon; },
-	      position: function (d, i) {
-	        return m_this.options('vertices')[i];
-	      },
-	      stroke: false,
-	      strokeColor: {r: 0, g: 0, b: 1},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      uniformPolygon: true
-	    }
-	  }, args || {});
-	  args.vertices = args.vertices || args.coordinates || [];
-	  delete args.coordinates;
-	  annotation.call(this, 'polygon', args);
-
-	  /**
-	   * Get a list of renderable features for this annotation.  When the polygon
-	   * is done, this is just a single polygon.  During creation this can be a
-	   * polygon and line at z-levels 1 and 2.
-	   *
-	   * @returns {array} An array of features.
-	   */
-	  this.features = function () {
-	    var opt = this.options(),
-	        state = this.state(),
-	        features;
-	    switch (state) {
-	      case annotationState.create:
-	        features = [];
-	        if (opt.vertices && opt.vertices.length >= 3) {
-	          features[1] = {
-	            polygon: {
-	              polygon: opt.vertices,
-	              style: opt.editStyle
-	            }
-	          };
-	        }
-	        if (opt.vertices && opt.vertices.length >= 2) {
-	          features[2] = {
-	            line: {
-	              line: opt.vertices,
-	              style: opt.editStyle
-	            }
-	          };
-	        }
-	        break;
-	      default:
-	        features = [{
-	          polygon: {
-	            polygon: opt.vertices,
-	            style: opt.style
-	          }
-	        }];
-	        break;
-	    }
-	    return features;
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation in the map gcs coordinate
-	   * system.
-	   *
-	   * @param {geo.geoPosition[]} [coordinates] An optional array of coordinates
-	   *  to set.
-	   * @returns {geo.geoPosition[]} The current array of coordinates.
-	   */
-	  this._coordinates = function (coordinates) {
-	    if (coordinates) {
-	      this.options('vertices', coordinates);
-	    }
-	    return this.options('vertices');
-	  };
-
-	  /**
-	   * Handle a mouse move on this annotation.
-	   *
-	   * @param {geo.event} evt The mouse move event.
-	   * @returns {boolean} Truthy to update the annotation, falsy to not
-	   *    update anything.
-	   */
-	  this.mouseMove = function (evt) {
-	    if (this.state() !== annotationState.create) {
-	      return;
-	    }
-	    var vertices = this.options('vertices');
-	    if (vertices.length) {
-	      vertices[vertices.length - 1] = evt.mapgcs;
-	      return true;
-	    }
-	  };
-
-	  /**
-	   * Handle a mouse click on this annotation.  If the event is processed,
-	   * evt.handled should be set to `true` to prevent further processing.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if
-	   *    the annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.mouseClick = function (evt) {
-	    var layer = this.layer();
-	    if (this.state() !== annotationState.create || !layer) {
-	      return;
-	    }
-	    var end = !!evt.buttonsDown.right, skip;
-	    if (!evt.buttonsDown.left && !evt.buttonsDown.right) {
-	      return;
-	    }
-	    var vertices = this.options('vertices');
-	    if (evt.buttonsDown.right && !vertices.length) {
-	      return;
-	    }
-	    evt.handled = true;
-	    if (evt.buttonsDown.left) {
-	      if (vertices.length) {
-	        if (vertices.length >= 2 && layer.displayDistance(
-	            vertices[vertices.length - 2], null, evt.map, 'display') <=
-	            layer.options('adjacentPointProximity')) {
-	          skip = true;
-	          if (this.lastClick &&
-	              evt.time - this.lastClick < layer.options('dblClickTime')) {
-	            end = true;
-	          }
-	        } else if (vertices.length >= 2 && layer.displayDistance(
-	            vertices[0], null, evt.map, 'display') <=
-	            layer.options('finalPointProximity')) {
-	          end = true;
-	        } else {
-	          vertices[vertices.length - 1] = evt.mapgcs;
-	        }
-	      } else {
-	        vertices.push(evt.mapgcs);
-	      }
-	      if (!end && !skip) {
-	        vertices.push(evt.mapgcs);
-	      }
-	      this.lastClick = evt.time;
-	    }
-	    if (end) {
-	      if (vertices.length < 4) {
-	        return 'remove';
-	      }
-	      vertices.pop();
-	      this.state(annotationState.done);
-	      return 'done';
-	    }
-	    return (end || !skip);
-	  };
-
-	  /**
-	   * Return the coordinates to be stored in a geojson geometry object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {array} An array of flattened coordinates in the interface gcs
-	   *    coordinate system.  `undefined` if this annotation is incomplete.
-	   */
-	  this._geojsonCoordinates = function (gcs) {
-	    var src = this.coordinates(gcs);
-	    if (!src || src.length < 3 || this.state() === annotationState.create) {
-	      return;
-	    }
-	    var coor = [];
-	    for (var i = 0; i < src.length; i += 1) {
-	      coor.push([src[i].x, src[i].y]);
-	    }
-	    coor.push([src[0].x, src[0].y]);
-	    return [coor];
-	  };
-
-	  /**
-	   * Return the geometry type that is used to store this annotation in geojson.
-	   *
-	   * @returns {string} A geojson geometry type.
-	   */
-	  this._geojsonGeometryType = function () {
-	    return 'Polygon';
-	  };
-
-	  /**
-	   * Return a list of styles that should be preserved in a geojson
-	   * representation of the annotation.
-	   *
-	   * @returns {string[]} A list of style names to store.
-	   */
-	  this._geojsonStyles = function () {
-	    return [
-	      'fill', 'fillColor', 'fillOpacity', 'lineCap', 'lineJoin', 'stroke',
-	      'strokeColor', 'strokeOffset', 'strokeOpacity', 'strokeWidth'];
-	  };
-	};
-	inherit(polygonAnnotation, annotation);
-
-	var polygonRequiredFeatures = {};
-	polygonRequiredFeatures[polygonFeature.capabilities.feature] = true;
-	polygonRequiredFeatures[lineFeature.capabilities.basic] = [annotationState.create];
-	registerAnnotation('polygon', polygonAnnotation, polygonRequiredFeatures);
-
-	/**
-	 * Line annotation class.
-	 *
-	 * @class
-	 * @alias geo.lineAnnotation
-	 * @extends geo.annotation
-	 *
-	 * @param {object?} [args] Options for the annotation.
-	 * @param {string} [args.name] A name for the annotation.  This defaults to
-	 *    the type with a unique ID suffixed to it.
-	 * @param {string} [args.state] initial annotation state.  One of the
-	 *    annotation.state values.
-	 * @param {boolean|string[]} [args.showLabel=true] `true` to show the
-	 *    annotation label on annotations in done or edit states.  Alternately, a
-	 *    list of states in which to show the label.  Falsy to not show the label.
-	 * @param {geo.geoPosition[]} [args.vertices] A list of vertices in map gcs
-	 *    coordinates.
-	 * @param {geo.geoPosition[]} [args.coordinates] An alternate name for
-	 *    `args.corners`.
-	 * @param {object} [args.style] The style to apply to a finished line.
-	 *    This uses styles for lines, including `strokeWidth`, `strokeColor`,
-	 *    `strokeOpacity`, `strokeOffset`, `closed`, `lineCap`, and `lineJoin`.
-	 * @param {object} [args.editStyle] The style to apply to a line in edit
-	 *    mode.  This uses styles for lines, including `strokeWidth`,
-	 *    `strokeColor`, `strokeOpacity`, `strokeOffset`, `closed`, `lineCap`,
-	 *    and `lineJoin`.
-	 */
-	var lineAnnotation = function (args) {
-	  'use strict';
-	  if (!(this instanceof lineAnnotation)) {
-	    return new lineAnnotation(args);
-	  }
-
-	  var m_this = this;
-
-	  args = $.extend(true, {}, {
-	    style: {
-	      line: function (d) {
-	        /* Return an array that has the same number of items as we have
-	         * vertices. */
-	        return Array.apply(null, Array(m_this.options('vertices').length)).map(
-	            function () { return d; });
-	      },
-	      position: function (d, i) {
-	        return m_this.options('vertices')[i];
-	      },
-	      strokeColor: {r: 0, g: 0, b: 0},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      closed: false,
-	      lineCap: 'butt',
-	      lineJoin: 'miter'
-	    },
-	    editStyle: {
-	      line: function (d) {
-	        /* Return an array that has the same number of items as we have
-	         * vertices. */
-	        return Array.apply(null, Array(m_this.options('vertices').length)).map(
-	            function () { return d; });
-	      },
-	      position: function (d, i) {
-	        return m_this.options('vertices')[i];
-	      },
-	      strokeColor: {r: 0, g: 0, b: 1},
-	      strokeOpacity: 1,
-	      strokeWidth: 3,
-	      closed: false,
-	      lineCap: 'butt',
-	      lineJoin: 'miter'
-	    }
-	  }, args || {});
-	  args.vertices = args.vertices || args.coordinates || [];
-	  delete args.coordinates;
-	  annotation.call(this, 'line', args);
-
-	  /**
-	   * Get a list of renderable features for this annotation.
-	   *
-	   * @returns {array} An array of features.
-	   */
-	  this.features = function () {
-	    var opt = this.options(),
-	        state = this.state(),
-	        features;
-	    switch (state) {
-	      case annotationState.create:
-	        features = [{
-	          line: {
-	            line: opt.vertices,
-	            style: opt.editStyle
-	          }
-	        }];
-	        break;
-	      default:
-	        features = [{
-	          line: {
-	            line: opt.vertices,
-	            style: opt.style
-	          }
-	        }];
-	        break;
-	    }
-	    return features;
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation in the map gcs coordinate
-	   * system.
-	   *
-	   * @param {geo.geoPosition[]} [coordinates] An optional array of coordinates
-	   *  to set.
-	   * @returns {geo.geoPosition[]} The current array of coordinates.
-	   */
-	  this._coordinates = function (coordinates) {
-	    if (coordinates) {
-	      this.options('vertices', coordinates);
-	    }
-	    return this.options('vertices');
-	  };
-
-	  /**
-	   * Handle a mouse move on this annotation.
-	   *
-	   * @param {geo.event} evt The mouse move event.
-	   * @returns {boolean} Truthy to update the annotation, falsy to not
-	   *    update anything.
-	   */
-	  this.mouseMove = function (evt) {
-	    if (this.state() !== annotationState.create) {
-	      return;
-	    }
-	    var vertices = this.options('vertices');
-	    if (vertices.length) {
-	      vertices[vertices.length - 1] = evt.mapgcs;
-	      return true;
-	    }
-	  };
-
-	  /**
-	   * Handle a mouse click on this annotation.  If the event is processed,
-	   * evt.handled should be set to `true` to prevent further processing.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if
-	   *    the annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.mouseClick = function (evt) {
-	    var layer = this.layer();
-	    if (this.state() !== annotationState.create || !layer) {
-	      return;
-	    }
-	    var end = !!evt.buttonsDown.right, skip;
-	    if (!evt.buttonsDown.left && !evt.buttonsDown.right) {
-	      return;
-	    }
-	    var vertices = this.options('vertices');
-	    if (evt.buttonsDown.right && !vertices.length) {
-	      return;
-	    }
-	    evt.handled = true;
-	    if (evt.buttonsDown.left) {
-	      if (vertices.length) {
-	        if (vertices.length >= 2 && layer.displayDistance(
-	            vertices[vertices.length - 2], null, evt.map, 'display') <=
-	            layer.options('adjacentPointProximity')) {
-	          skip = true;
-	          if (this.lastClick &&
-	              evt.time - this.lastClick < layer.options('dblClickTime')) {
-	            end = true;
-	          }
-	        } else if (vertices.length >= 2 && layer.displayDistance(
-	            vertices[0], null, evt.map, 'display') <=
-	            layer.options('finalPointProximity')) {
-	          end = 'close';
-	        } else {
-	          vertices[vertices.length - 1] = evt.mapgcs;
-	        }
-	      } else {
-	        vertices.push(evt.mapgcs);
-	      }
-	      if (!end && !skip) {
-	        vertices.push(evt.mapgcs);
-	      }
-	      this.lastClick = evt.time;
-	    }
-	    if (end) {
-	      if (vertices.length < 3) {
-	        return 'remove';
-	      }
-	      vertices.pop();
-	      this.options('style').closed = end === 'close';
-	      this.state(annotationState.done);
-	      return 'done';
-	    }
-	    return (end || !skip);
-	  };
-
-	  /**
-	   * Return actions needed for the specified state of this annotation.
-	   *
-	   * @param {string} [state] The state to return actions for.  Defaults to
-	   *    the current state.
-	   * @returns {geo.actionRecord[]} A list of actions.
-	   */
-	  this.actions = function (state) {
-	    if (!state) {
-	      state = this.state();
-	    }
-	    switch (state) {
-	      case annotationState.create:
-	        return [{
-	          action: geo_action.annotation_line,
-	          name: 'line create',
-	          owner: annotationActionOwner,
-	          input: 'left',
-	          modifiers: {shift: false, ctrl: false}
-	        }, {
-	          action: geo_action.annotation_line,
-	          name: 'line create',
-	          owner: annotationActionOwner,
-	          input: 'pan'
-	        }];
-	      default:
-	        return [];
-	    }
-	  };
-
-	  /**
-	   * Process any actions for this annotation.
-	   *
-	   * @param {geo.event} evt The action event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if the
-	   *    annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.processAction = function (evt) {
-	    var layer = this.layer();
-	    if (this.state() !== annotationState.create || !layer ||
-	        evt.state.action !== geo_action.annotation_line) {
-	      return;
-	    }
-	    var cpp = layer.options('continuousPointProximity');
-	    if (cpp || cpp === 0) {
-	      var vertices = this.options('vertices');
-	      if (!vertices.length) {
-	        vertices.push(evt.mouse.mapgcs);
-	        vertices.push(evt.mouse.mapgcs);
-	        return true;
-	      }
-	      var dist = layer.displayDistance(
-	            vertices[vertices.length - 2], null, evt.mouse.map, 'display');
-	      if (dist && dist > cpp) {
-	        // we should combine nearly colinear points, but we don't
-	        vertices[vertices.length - 1] = evt.mouse.mapgcs;
-	        vertices.push(evt.mouse.mapgcs);
-	        return true;
-	      }
-	    }
-	  };
-
-	  /**
-	   * Return the coordinates to be stored in a geojson geometry object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {array} An array of flattened coordinates in the interface gcs
-	   *    coordinate system.  `undefined` if this annotation is incomplete.
-	   */
-	  this._geojsonCoordinates = function (gcs) {
-	    var src = this.coordinates(gcs);
-	    if (!src || src.length < 2 || this.state() === annotationState.create) {
-	      return;
-	    }
-	    var coor = [];
-	    for (var i = 0; i < src.length; i += 1) {
-	      coor.push([src[i].x, src[i].y]);
-	    }
-	    return coor;
-	  };
-
-	  /**
-	   * Return the geometry type that is used to store this annotation in geojson.
-	   *
-	   * @returns {string} A geojson geometry type.
-	   */
-	  this._geojsonGeometryType = function () {
-	    return 'LineString';
-	  };
-
-	  /**
-	   * Return a list of styles that should be preserved in a geojson
-	   * representation of the annotation.
-	   *
-	   * @returns {string[]} A list of style names to store.
-	   */
-	  this._geojsonStyles = function () {
-	    return [
-	      'closed', 'lineCap', 'lineJoin', 'strokeColor', 'strokeOffset',
-	      'strokeOpacity', 'strokeWidth'];
-	  };
-	};
-	inherit(lineAnnotation, annotation);
-
-	var lineRequiredFeatures = {};
-	lineRequiredFeatures[lineFeature.capabilities.basic] = [annotationState.create];
-	registerAnnotation('line', lineAnnotation, lineRequiredFeatures);
-
-	/**
-	 * Point annotation class.
-	 *
-	 * @class
-	 * @alias geo.poinyAnnotation
-	 * @extends geo.annotation
-	 *
-	 * @param {object?} [args] Options for the annotation.
-	 * @param {string} [args.name] A name for the annotation.  This defaults to
-	 *    the type with a unique ID suffixed to it.
-	 * @param {string} [args.state] initial annotation state.  One of the
-	 *    annotation.state values.
-	 * @param {boolean|string[]} [args.showLabel=true] `true` to show the
-	 *    annotation label on annotations in done or edit states.  Alternately, a
-	 *    list of states in which to show the label.  Falsy to not show the label.
-	 * @param {geo.geoPosition} [args.position] A coordinate in map gcs
-	 *    coordinates.
-	 * @param {geo.geoPosition[]} [args.coordinates] An array with one coordinate
-	 *  to use in place of `args.position`.
-	 * @param {object} [args.style] The style to apply to a finished point.
-	 *    This uses styles for points, including `radius`, `fill`, `fillColor`,
-	 *    `fillOpacity`, `stroke`, `strokeWidth`, `strokeColor`, `strokeOpacity`,
-	 *    and `scaled`.  If `scaled` is `false`, the point is not scaled with
-	 *    zoom level.  If it is `true`, the radius is based on the zoom level at
-	 *    first instantiation.  Otherwise, if it is a number, the radius is used
-	 *    at that zoom level.
-	 * @param {object} [args.editStyle] The style to apply to a line in edit
-	 *    mode.  This uses styles for lines.
-	 */
-	var pointAnnotation = function (args) {
-	  'use strict';
-	  if (!(this instanceof pointAnnotation)) {
-	    return new pointAnnotation(args);
-	  }
-	  var m_this = this;
-
-	  args = $.extend(true, {}, {
-	    style: {
-	      fill: true,
-	      fillColor: {r: 0, g: 1, b: 0},
-	      fillOpacity: 0.25,
-	      radius: 10,
-	      scaled: false,
-	      stroke: true,
-	      strokeColor: {r: 0, g: 0, b: 0},
-	      strokeOpacity: 1,
-	      strokeWidth: 3
-	    }
-	  }, args || {});
-	  args.position = args.position || (args.coordinates ? args.coordinates[0] : undefined);
-	  delete args.coordinates;
-	  annotation.call(this, 'point', args);
-
-	  /**
-	   * Get a list of renderable features for this annotation.
-	   *
-	   * @returns {array} An array of features.
-	   */
-	  this.features = function () {
-	    var opt = this.options(),
-	        state = this.state(),
-	        features, style, scaleOnZoom;
-	    switch (state) {
-	      case annotationState.create:
-	        features = [];
-	        break;
-	      default:
-	        style = opt.style;
-	        if (opt.style.scaled || opt.style.scaled === 0) {
-	          if (opt.style.scaled === true) {
-	            opt.style.scaled = this.layer().map().zoom();
-	          }
-	          style = $.extend({}, style, {
-	            radius: function () {
-	              var radius = opt.style.radius,
-	                  zoom = m_this.layer().map().zoom();
-	              if (util.isFunction(radius)) {
-	                radius = radius.apply(this, arguments);
-	              }
-	              radius *= Math.pow(2, zoom - opt.style.scaled);
-	              return radius;
-	            }
-	          });
-	          scaleOnZoom = true;
-	        }
-	        features = [{
-	          point: {
-	            x: opt.position.x,
-	            y: opt.position.y,
-	            style: style,
-	            scaleOnZoom: scaleOnZoom
-	          }
-	        }];
-	        break;
-	    }
-	    return features;
-	  };
-
-	  /**
-	   * Get coordinates associated with this annotation in the map gcs coordinate
-	   * system.
-	   *
-	   * @param {geo.geoPosition[]} [coordinates] An optional array of coordinates
-	   *  to set.
-	   * @returns {geo.geoPosition[]} The current array of coordinates.
-	   */
-	  this._coordinates = function (coordinates) {
-	    if (coordinates && coordinates.length >= 1) {
-	      this.options('position', coordinates[0]);
-	    }
-	    if (this.state() === annotationState.create) {
-	      return [];
-	    }
-	    return [this.options('position')];
-	  };
-
-	  /**
-	   * Handle a mouse click on this annotation.  If the event is processed,
-	   * evt.handled should be set to `true` to prevent further processing.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   * @returns {boolean|string} `true` to update the annotation, `'done'` if
-	   *    the annotation was completed (changed from create to done state),
-	   *    `'remove'` if the annotation should be removed, falsy to not update
-	   *    anything.
-	   */
-	  this.mouseClick = function (evt) {
-	    if (this.state() !== annotationState.create) {
-	      return;
-	    }
-	    if (!evt.buttonsDown.left) {
-	      return;
-	    }
-	    evt.handled = true;
-	    this.options('position', evt.mapgcs);
-	    this.state(annotationState.done);
-	    return 'done';
-	  };
-
-	  /**
-	   * Return a list of styles that should be preserved in a geojson
-	   * representation of the annotation.
-	   *
-	   * @returns {string[]} A list of style names to store.
-	   */
-	  this._geojsonStyles = function () {
-	    return [
-	      'fill', 'fillColor', 'fillOpacity', 'radius', 'scaled', 'stroke',
-	      'strokeColor', 'strokeOpacity', 'strokeWidth'];
-	  };
-
-	  /**
-	   * Return the coordinates to be stored in a geojson geometry object.
-	   *
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {array} An array of flattened coordinates in the interface gcs
-	   *    coordinate system.  `undefined` if this annotation is incomplete.
-	   */
-	  this._geojsonCoordinates = function (gcs) {
-	    var src = this.coordinates(gcs);
-	    if (!src || this.state() === annotationState.create || src.length < 1 || src[0] === undefined) {
-	      return;
-	    }
-	    return [src[0].x, src[0].y];
-	  };
-
-	  /**
-	   * Return the geometry type that is used to store this annotation in geojson.
-	   *
-	   * @returns {string} A geojson geometry type.
-	   */
-	  this._geojsonGeometryType = function () {
-	    return 'Point';
-	  };
-	};
-	inherit(pointAnnotation, annotation);
-
-	var pointRequiredFeatures = {};
-	pointRequiredFeatures[pointFeature.capabilities.feature] = true;
-	registerAnnotation('point', pointAnnotation, pointRequiredFeatures);
-
-	module.exports = {
-	  state: annotationState,
-	  actionOwner: annotationActionOwner,
-	  annotation: annotation,
-	  lineAnnotation: lineAnnotation,
-	  pointAnnotation: pointAnnotation,
-	  polygonAnnotation: polygonAnnotation,
-	  rectangleAnnotation: rectangleAnnotation
-	};
-
-
-/***/ }),
-/* 8 */
-/***/ (function(module, exports) {
-
-	function newfunc() {
-	  return function () {};
-	}
-
-	/**
-	 * Convenient function to define JS inheritance
-	 */
-	module.exports = function (C, P) {
-	  var F = newfunc();
-	  F.prototype = P.prototype;
-	  C.prototype = new F();
-	  C.prototype.constructor = C;
-	};
-
-
-/***/ }),
-/* 9 */
-/***/ (function(module, exports) {
-
-	/**
-	 * Common object containing all event types that are provided by the GeoJS
-	 * API.  Each property contained here is a valid target for event handling
-	 * via {@link geo.object#geoOn}.  The event object provided to handlers is
-	 * different for each event type.  Each handler is generally called with the
-	 * `this` context being the class that caused the event.<br>
-	 * <br>
-	 * The following properties are common to all event objects:
-	 *
-	 * @namespace
-	 * @alias geo.event
-	 * @type {object}
-	 * @property {string} event The event type that was triggered.
-	 * @property {object} geo A universal event object for controlling propagation.
-	 *
-	 * @example
-	 * map.geoOn(geo.event.layerAdd, function (event) {
-	 *   // event is an object with type: {@link geo.event.layerAdd}
-	 * });
-	 *
-	 */
-	var geo_event = {};
-
-	/*
-	 * Event types
-	 */
-
-	/**
-	 * Triggered when a layer is added to the map.
-	 *
-	 * @event geo.event.layerAdd
-	 * @type {object}
-	 * @property {geo.map} target The current map.
-	 * @property {geo.layer} layer The new layer that was added.
-	 */
-	geo_event.layerAdd = 'geo_layerAdd';
-
-	/**
-	 * Triggered when a layer is removed from the map.
-	 *
-	 * @event geo.event.layerRemove
-	 * @type {object}
-	 * @property {geo.map} target The current map.
-	 * @property {geo.layer} layer The old layer that was removed.
-	 */
-	geo_event.layerRemove = 'geo_layerRemove';
-
-	/**
-	 * Triggered when the map's zoom level is changed.
-	 *
-	 * @event geo.event.zoom
-	 * @type {object}
-	 * @property {number} zoomLevel New zoom level.
-	 * @property {geo.screenPosition} screenPosition The screen position of the
-	 *      mouse pointer.
-	 */
-	geo_event.zoom = 'geo_zoom';
-
-	/**
-	 * Triggered when the map is rotated around the current map center (pointing
-	 * downward so that positive angles are clockwise rotations).
-	 *
-	 * @event geo.event.rotate
-	 * @type {object}
-	 * @property {number} rotation The angle of the rotation in radians.  This is
-	 *      the map's complete rotation, not a delta.
-	 * @property {geo.screenPosition} screenPosition The screen position of the
-	 *      mouse pointer.
-	 */
-	geo_event.rotate = 'geo_rotate';
-
-	/**
-	 * Triggered when the map is panned either by user interaction or map
-	 * transition.
-	 *
-	 * @event geo.event.pan
-	 * @type {object}
-	 * @property {object} screenDelta The number of pixels of the pan.
-	 * @property {number} screenDelta.x Horizontal pan distance in pixels.
-	 * @property {number} screenDelta.y Vertical pan distance in pixels.
-	 */
-	geo_event.pan = 'geo_pan';
-
-	/**
-	 * Triggered when the map's canvas is resized.
-	 *
-	 * @event geo.event.resize
-	 * @type {object}
-	 * @property {geo.map} target The map that was resized.
-	 * @property {number} width The new width in pixels.
-	 * @property {number} height The new height in pixels.
-	 */
-	geo_event.resize = 'geo_resize';
-
-	/**
-	 * Triggered on every call to {@link geo.map#draw} before the map is rendered.
-	 *
-	 * @event geo.event.draw
-	 * @type {object}
-	 * @property {geo.map} target The current map.
-	 */
-	geo_event.draw = 'geo_draw';
-
-	/**
-	 * Triggered on every call to {@link geo.map#draw} after the map is rendered.
-	 *
-	 * @event geo.event.drawEnd
-	 * @type {object}
-	 * @property {geo.map} target The current map.
-	 */
-	geo_event.drawEnd = 'geo_drawEnd';
-
-	/**
-	 * Triggered on every `mousemove` over the map's DOM element unless a click
-	 * might occur.  The event object extends {@link geo.mouseState}.
-	 *
-	 * @event geo.event.mousemove
-	 */
-	geo_event.mousemove = 'geo_mousemove';
-
-	/**
-	 * Triggered on `mouseup` events that happen soon enough and close enough to a
-	 * `mousedown` event.  The event object extends {@link geo.mouseState}.
-	 *
-	 * @event geo.event.mouseclick
-	 * @property {geo.mouseButtons} buttonsDown The buttons that were down at the
-	 *      start of the click action.
-	 */
-	geo_event.mouseclick = 'geo_mouseclick';
-
-	/**
-	 * Triggered on every `mousemove` during a brushing selection.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.brush
-	 */
-	geo_event.brush = 'geo_brush';
-
-	/**
-	 * Triggered after a brush selection ends.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.brushend
-	 */
-	geo_event.brushend = 'geo_brushend';
-
-	/**
-	 * Triggered when a brush selection starts.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.brushstart
-	 */
-	geo_event.brushstart = 'geo_brushstart';
-
-	/**
-	 * Triggered when brushing results in a selection.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.select
-	 */
-	geo_event.select = 'geo_select';
-
-	/**
-	 * Triggered when brushing results in a zoom selection.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.zoomselect
-	 */
-	geo_event.zoomselect = 'geo_zoomselect';
-
-	/**
-	 * Triggered when brushing results in a zoom-out selection.
-	 * The event object extends {@link geo.brushSelection}.
-	 *
-	 * @event geo.event.unzoomselect
-	 */
-
-	geo_event.unzoomselect = 'geo_unzoomselect';
-
-	/**
-	 * Triggered when an action is initiated with mouse down.
-	 *
-	 * @event geo.event.actiondown
-	 * @property {geo.actionState} state The action state.
-	 * @property {geo.mouseState} mouse The mouse state.
-	 * @property {jQuery.Event} event The triggering jQuery event.
-	 */
-	geo_event.actiondown = 'geo_actiondown';
-
-	/**
-	 * Triggered when an action is being processed during mouse movement.
-	 *
-	 * @event geo.event.actionmove
-	 * @property {geo.actionState} state The action state.
-	 * @property {geo.mouseState} mouse The mouse state.
-	 * @property {jQuery.Event} event The triggering event.
-	 */
-	geo_event.actionmove = 'geo_actionmove';
-
-	/**
-	 * Triggered when an action is ended with a mouse up.
-	 *
-	 * @event geo.event.actionup
-	 * @property {geo.actionState} state The action state.
-	 * @property {geo.mouseState} mouse The mouse state.
-	 * @property {jQuery.Event} event The triggering event.
-	 */
-	geo_event.actionup = 'geo_actionup';
-
-	/**
-	 * Triggered when an action results in a selection.
-	 *
-	 * @event geo.event.actionselection
-	 * @property {geo.actionState} state The action state.
-	 * @property {geo.mouseState} mouse The mouse state.
-	 * @property {jQuery.Event} event The triggering event.
-	 * @property {geo.screenPosition} lowerLeft Lower left of selection in screen
-	 *      coordinates.
-	 * @property {geo.screenPosition} upperRight Upper right of selection in screen
-	 *      coordinates.
-	 */
-	geo_event.actionselection = 'geo_actionselection';
-
-	/**
-	 * Triggered when an action is triggered with a mouse wheel event.
-	 *
-	 * @event geo.event.actionwheel
-	 * @property {geo.actionState} state The action state.
-	 * @property {geo.mouseState} mouse The mouse state.
-	 * @property {jQuery.Event} event The triggering event.
-	 */
-	geo_event.actionwheel = 'geo_actionwheel';
-
-	/**
-	 * Triggered when an action is triggered via the keyboard.
-	 *
-	 * @event geo.event.keyaction
-	 * @property {object} move The movement that would happen if the action is
-	 *      passed through.
-	 * @property {number} [move.zoomDelta] A change in the zoom level.
-	 * @property {number} [move.zoom] A new zoom level.
-	 * @property {number} [move.rotationDelta] A change in the rotation in radians.
-	 * @property {number} [move.rotation] A new absolute rotation in radians.
-	 * @property {number} [move.panX] A horizontal shift in display pixels.
-	 * @property {number} [move.panY] A vertical shift in display pixels.
-	 * @property {boolean} [move.cancel] Set to `true` to cancel the entire
-	 *      movement.
-	 * @property {string} action Action based on key
-	 * @property {number} factor Factor based on metakeys [0-2].  0 means a small
-	 *      movement is preferred, 1 a medium movement, and 2 a large movement.
-	 * @property {jQuery.Event} event The triggering event
-	 */
-	geo_event.keyaction = 'geo_keyaction';
-
-	/**
-	 * Triggered before a map navigation animation begins.  Set
-	 * `event.geo.cancelAnimation` to cancel the animation of the navigation.  This
-	 * will cause the map to navigate to the target location immediately.  Set
-	 * `event.geo.cancelNavigation` to cancel the navigation completely.  The
-	 * transition options can be modified in place.
-	 *
-	 * @event geo.event.transitionstart
-	 * @type {object}
-	 * @property {geo.geoPosition} center The target center.
-	 * @property {number} zoom The target zoom level.
-	 * @property {number} duration The duration of the transition in milliseconds.
-	 * @property {function} ease The easing function.
-	 */
-	geo_event.transitionstart = 'geo_transitionstart';
-
-	/**
-	 * Triggered after a map navigation animation ends.
-	 *
-	 * @event geo.event.transitionend
-	 * @type {object}
-	 * @property {geo.geoPosition} center The target center.
-	 * @property {number} zoom The target zoom level.
-	 * @property {number} duration The duration of the transition in milliseconds.
-	 * @property {function} ease The easing function.
-	 */
-	geo_event.transitionend = 'geo_transitionend';
-
-	/**
-	 * Triggered if a map navigation animation is canceled.
-	 *
-	 * @event geo.event.transitioncancel
-	 * @type {object}
-	 * @property {geo.geoPosition} center The target center.
-	 * @property {number} zoom The target zoom level.
-	 * @property {number} duration The duration of the transition in milliseconds.
-	 * @property {function} ease The easing function.
-	 */
-	geo_event.transitioncancel = 'geo_transitioncancel';
-
-	/**
-	 * Triggered when the parallel projection mode is changes.
-	 *
-	 * @event geo.event.parallelprojection
-	 * @type {object}
-	 * @property {boolean} paralellProjection `true` if parallel projection is
-	 *      turned on.
-	 */
-	geo_event.parallelprojection = 'geo_parallelprojection';
-
-	/**
-	 * This event object provides mouse/keyboard events that can be handled
-	 * by the features.  This provides a similar interface as core events,
-	 * but with different names so the events don't interfere.  Subclasses
-	 * can override this to provide custom events.
-	 *
-	 * These events will only be triggered on features which were instantiated
-	 * with the option 'selectionAPI'.
-	 * @namespace geo.event.feature
-	 */
-	geo_event.feature = {
-	  /**
-	   * The event is the feature version of {@link geo.event.mousemove}.
-	   * @event geo.event.feature.mousemove
-	   */
-	  mousemove:  'geo_feature_mousemove',
-	  /**
-	   * The event is the feature version of {@link geo.event.mouseover}.
-	   * @event geo.event.feature.mouseover
-	   */
-	  mouseover:  'geo_feature_mouseover',
-	  /**
-	   * The event is the feature version of {@link geo.event.mouseout}.
-	   * @event geo.event.feature.mouseout
-	   */
-	  mouseout:   'geo_feature_mouseout',
-	  /**
-	   * The event is the feature version of {@link geo.event.mouseon}.
-	   * @event geo.event.feature.mouseon
-	   */
-	  mouseon:    'geo_feature_mouseon',
-	  /**
-	   * The event is the feature version of {@link geo.event.mouseoff}.
-	   * @event geo.event.feature.mouseoff
-	   */
-	  mouseoff:   'geo_feature_mouseoff',
-	  /**
-	   * The event is the feature version of {@link geo.event.mouseclick}.
-	   * @event geo.event.feature.mouseclick
-	   */
-	  mouseclick: 'geo_feature_mouseclick',
-	  /**
-	   * The event is the feature version of {@link geo.event.brushend}.
-	   * @event geo.event.feature.brushend
-	   */
-	  brushend:   'geo_feature_brushend',
-	  /**
-	   * The event is the feature version of {@link geo.event.brush}.
-	   * @event geo.event.feature.brush
-	   */
-	  brush:      'geo_feature_brush'
-	};
-
-	/**
-	 * These events are triggered by the pixelmap feature.
-	 * @namespace geo.event.pixelmap
-	 */
-	geo_event.pixelmap = {
-	  /**
-	   * Report that an image associated with a pixel map has been prepared and
-	   * rendered once.
-	   *
-	   * @event geo.event.pixelmap.prepared
-	   * @type {object}
-	   * @property {geo.pixelmapFeature} pixelmap The pixelmap object that was
-	   *    prepared.
-	   */
-	  prepared: 'geo_pixelmap_prepared'
-	};
-
-	/**
-	 * These events are triggered by the map screenshot feature.
-	 * @namespace geo.event.screenshot
-	 */
-	geo_event.screenshot = {
-	  /**
-	   * Triggered when a screenshot has been completed.
-	   *
-	   * @event geo.event.screenshot.ready
-	   * @property {HTMLCanvasElement} canvas The canvas used to take the
-	   *    screenshot.
-	   * @property {string|HTMLCanvasElement} screenshot The screenshot as a
-	   *    dataURL string or the canvas, depending on the screenshot request.
-	   */
-	  ready: 'geo_screenshot_ready'
-	};
-
-	/**
-	 * These events are triggered by the camera when it's internal state is
-	 * mutated.
-	 * @namespace geo.event.camera
-	 */
-	geo_event.camera = {};
-
-	/**
-	 * Triggered after a general view matrix change (any change in the visible
-	 * bounds).  This is equivalent to the union of pan and zoom.
-	 *
-	 * @event geo.event.camera.view
-	 * @type {object}
-	 * @property {geo.camera} camera The camera instance.
-	 */
-	geo_event.camera.view = 'geo_camera_view';
-
-	/**
-	 * Triggered after a projection change.
-	 *
-	 * @event geo.event.camera.projection
-	 * @property {geo.camera} camera The camera instance.
-	 * @property {string} type The projection type, either `'perspective'` or
-	 *      `'parallel'`.
-	 */
-	geo_event.camera.projection = 'geo_camera_projection';
-
-	/**
-	 * Triggered after a viewport change.
-	 *
-	 * @event geo.event.camera.viewport
-	 * @property {geo.camera} camera The camera instance.
-	 * @property {geo.screenSize} viewport The new viewport size.
-	 */
-	geo_event.camera.viewport = 'geo_camera_viewport';
-
-	/**
-	 * These events are triggered by the annotation layer.
-	 * @namespace geo.event.annotation
-	 */
-	geo_event.annotation = {};
-
-	/**
-	 * Triggered when an annotation has been added.
-	 *
-	 * @event geo.event.annotation.add
-	 * @type {object}
-	 * @property {geo.annotation} annotation The annotation that was added.
-	 */
-	geo_event.annotation.add = 'geo_annotation_add';
-
-	/**
-	 * Triggered when an annotation is about to be added.
-	 *
-	 * @event geo.event.annotation.add_before
-	 * @type {object}
-	 * @property {geo.annotation} annotation The annotation that will be added.
-	 */
-	geo_event.annotation.add_before = 'geo_annotation_add_before';
-
-	/**
-	 * Triggered when an annotation has been altered.  This is currently only
-	 * triggered when updating existing annotations via the geojson function.
-	 *
-	 * @event geo.event.annotation.update
-	 * @type {object}
-	 * @property {geo.annotation} annotation The annotation that was altered.
-	 */
-	geo_event.annotation.update = 'geo_annotation_update';
-
-	/**
-	 * Triggered when an annotation has been removed.
-	 *
-	 * @event geo.event.annotation.remove
-	 * @type {object}
-	 * @property {geo.annotation} annotation The annotation that was removed.
-	 */
-	geo_event.annotation.remove = 'geo_annotation_remove';
-
-	/**
-	 * Triggered when an annotation's state changes.
-	 *
-	 * @event geo.event.annotation.state
-	 * @type {object}
-	 * @property {geo.annotation} annotation The annotation that changed.
-	 */
-	geo_event.annotation.state = 'geo_annotation_state';
-
-	/**
-	 * Triggered when the annotation mode is changed.
-	 *
-	 * @event geo.event.annotation.mode
-	 * @type {object}
-	 * @property {string?} mode The new annotation mode.  This is one of the values
-	 *      from `geo.annotation.annotationState`.
-	 * @property {string?} oldMode The annotation mode before this change.  This is
-	 *      one of the values from `geo.annotation.annotationState`.
-	 */
-	geo_event.annotation.mode = 'geo_annotation_mode';
-
-	module.exports = geo_event;
-
-
-/***/ }),
-/* 10 */
-/***/ (function(module, exports) {
-
-	/**
-	 * Common object containing all action types that are provided by the GeoJS
-	 * API.
-	 */
-	var geo_action = {
-	  momentum: 'geo_action_momentum',
-	  pan: 'geo_action_pan',
-	  rotate: 'geo_action_rotate',
-	  select: 'geo_action_select',
-	  unzoomselect: 'geo_action_unzoomselect',
-	  zoom: 'geo_action_zoom',
-	  zoomrotate: 'geo_action_zoom_rotate',
-	  zoomselect: 'geo_action_zoomselect',
-
-	  // annotation actions
-	  annotation_line: 'geo_annotation_line',
-	  annotation_polygon: 'geo_annotation_polygon',
-	  annotation_rectangle: 'geo_annotation_rectangle'
-	};
-
-	module.exports = geo_action;
-
-
-/***/ }),
-/* 11 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var proj4 = __webpack_require__(12);
-	var util = __webpack_require__(83);
-
-	/**
-	 * This purpose of this class is to provide a generic interface for computing
-	 * coordinate transformationss.  The interface is taken from the proj4js,
-	 * which also provides the geospatial projection implementation.  The
-	 * interface is intentionally simple to allow for custom, non-geospatial use
-	 * cases. For further details, see http://proj4js.org/
-	 *
-	 * The default transforms lat/long coordinates into web mercator
-	 * for use with standard tile sets.
-	 *
-	 * This class is intended to be extended in the future to support 2.5 and 3
-	 * dimensional transformations.  The forward/inverse methods take optional
-	 * z values that are ignored in current mapping context, but will in the
-	 * future perform more general 3D transformations.
-	 *
-	 * @class geo.transform
-	 * @param {object} options Constructor options
-	 * @param {string} options.source A proj4 string for the source projection
-	 * @param {string} options.target A proj4 string for the target projection
-	 * @returns {geo.transform}
-	 */
-
-	var transformCache = {};
-	/* Up to maxTransformCacheSize squared might be cached.  When the maximum cache
-	 * size is reached, the cache is completely emptied.  Since we probably won't
-	 * be rapidly switching between a large number of transforms, this is adequate
-	 * simple behavior. */
-	var maxTransformCacheSize = 10;
-
-	var transform = function (options) {
-	  'use strict';
-	  if (!(this instanceof transform)) {
-	    options = options || {};
-	    if (!(options.source in transformCache)) {
-	      if (Object.size(transformCache) >= maxTransformCacheSize) {
-	        transformCache = {};
-	      }
-	      transformCache[options.source] = {};
-	    }
-	    if (!(options.target in transformCache[options.source])) {
-	      if (Object.size(transformCache[options.source]) >= maxTransformCacheSize) {
-	        transformCache[options.source] = {};
-	      }
-	      transformCache[options.source][options.target] = new transform(options);
-	    }
-	    return transformCache[options.source][options.target];
-	  }
-
-	  var m_this = this,
-	      m_proj,   // The raw proj4js object
-	      m_source, // The source projection
-	      m_target; // The target projection
-
-	  /**
-	   * Generate the internal proj4 object.
-	   * @private
-	   */
-	  function generate_proj4() {
-	    m_proj = new proj4(
-	      m_this.source(),
-	      m_this.target()
-	    );
-	  }
-
-	  /**
-	   * Get/Set the source projection.
-	   *
-	   * @param {string} [arg] The new source projection.  If `undefined`, return
-	   *    the current source projection.
-	   * @returns {string|this} The current source projection if it was queried,
-	   *    otherwise the current transform object.
-	   */
-	  this.source = function (arg) {
-	    if (arg === undefined) {
-	      return m_source || 'EPSG:4326';
-	    }
-	    m_source = arg;
-	    generate_proj4();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set the target projection.
-	   *
-	   * @param {string} [arg] The new target projection.  If `undefined`, return
-	   *    the current target projection.
-	   * @returns {string|this} The current target projection if it was queried,
-	   *    otherwise the current transform object.
-	   */
-	  this.target = function (arg) {
-	    if (arg === undefined) {
-	      return m_target || 'EPSG:3857';
-	    }
-	    m_target = arg;
-	    generate_proj4();
-	    return m_this;
-	  };
-
-	  /**
-	   * Perform a forward transformation (source -> target).
-	   * @protected
-	   *
-	   * @param {geo.geoPosition} point The point in source coordinates.
-	   * @returns {geo.geoPosition} A point object in the target coordinates.
-	   */
-	  this._forward = function (point) {
-	    var pt = m_proj.forward(point);
-	    pt.z = point.z || 0;
-	    return pt;
-	  };
-
-	  /**
-	   * Perform an inverse transformation (target -> source).
-	   * @protected
-	   *
-	   * @param {geo.geoPosition} point The point in target coordinates.
-	   * @returns {geo.geoPosition} A point object in the source coordinates.
-	   */
-	  this._inverse = function (point) {
-	    var pt = m_proj.inverse(point);
-	    pt.z = point.z || 0;
-	    return pt;
-	  };
-
-	  /**
-	   * Perform a forward transformation (source -> target) in place.
-	   * @protected
-	   *
-	   * @param {geo.geoPosition|geo.geoPosition[]} point The point coordinates
-	   *    or array of points in source coordinates.
-	   * @returns {geo.geoPosition|geo.geoPosition[]} A point object or array in
-	   *    the target coordinates.
-	   */
-	  this.forward = function (point) {
-	    if (Array.isArray(point)) {
-	      return point.map(m_this._forward);
-	    }
-	    return m_this._forward(point);
-	  };
-
-	  /**
-	   * Perform an inverse transformation (target -> source) in place.
-	   * @protected
-	   *
-	   * @param {geo.geoPosition|geo.geoPosition[]} point The point coordinates
-	   *    or array of points in target coordinates.
-	   * @returns {geo.geoPosition|geo.geoPosition[]} A point object or array in
-	   *    the source coordinates.
-	   */
-	  this.inverse = function (point) {
-	    if (Array.isArray(point)) {
-	      return point.map(m_this._inverse);
-	    }
-	    return m_this._inverse(point);
-	  };
-
-	  // Set defaults given by the constructor
-	  options = options || {};
-	  try {
-	    this.source(options.source);
-	  } catch (err) {
-	    console.error('Can\'t use transform source: ' + options.source);
-	    this.source('EPSG:4326');
-	  }
-	  try {
-	    this.target(options.target);
-	  } catch (err) {
-	    console.error('Can\'t use transform target: ' + options.target);
-	    this.target('EPSG:3857');
-	  }
-
-	  return this;
-	};
-
-	/**
-	 * Contains a reference to `proj4.defs`.  The functions serves two
-	 * purposes.
-	 *
-	 *   1. It is a key value mapping of all loaded projection definitions
-	 *   2. It is a function that will add additional definitions.
-	 *
-	 * See:
-	 *   http://proj4js.org/
-	 */
-	transform.defs = proj4.defs;
-
-	/**
-	 * Look up a projection definition from epsg.io.
-	 * For the moment, we only handle `EPSG` codes.
-	 *
-	 * @param {string} projection A projection alias (e.g. EPSG:4326)
-	 * @returns {promise} Resolves with the proj4 definition
-	 */
-	transform.lookup = function (projection) {
-	  var $ = __webpack_require__(1);
-	  var code, defer = $.Deferred(), parts;
-
-	  if (proj4.defs.hasOwnProperty(projection)) {
-	    return defer.resolve(proj4.defs[projection]);
-	  }
-
-	  parts = projection.split(':');
-	  if (parts.length !== 2 || parts[0].toUpperCase() !== 'EPSG') {
-	    return defer.reject('Invalid projection code').promise();
-	  }
-	  code = parts[1];
-
-	  return $.ajax({
-	    url: 'http://epsg.io/?q=' + code + '&format=json'
-	  }).then(function (data) {
-	    var result = (data.results || [])[0];
-	    if (!result || !result.proj4) {
-	      return defer.reject(data).promise();
-	    }
-
-	    proj4.defs(projection, result.proj4);
-	    return $.when(proj4.defs[projection]);
-	  });
-	};
-
-	/**
-	 * Transform an array of coordinates from one projection into another.  The
-	 * transformation may occur in place (modifying the input coordinate array),
-	 * depending on the input format.  The coordinates can be an object with x,
-	 * y, and (optionally z) or an array of 2 or 3 values, or an array of either
-	 * of those, or a single flat array with 2 or 3 components per coordinate.
-	 * Arrays are always modified in place.  Individual point objects are not
-	 * altered; new point objects are returned unless no transform is needed.
-	 *
-	 * @param {string} srcPrj The source projection.
-	 * @param {string} tgtPrj The destination projection.
-	 * @param {geoPosition|geoPosition[]|number[]} coordinates An array of
-	 *      coordinate objects.  These may be in object or array form, or a flat
-	 *      array.
-	 * @param {number} numberOfComponents For flat arrays, either 2 or 3.
-	 * @returns {geoPosition|geoPosition[]|number[]} The transformed coordinates.
-	 */
-	transform.transformCoordinates = function (
-	        srcPrj, tgtPrj, coordinates, numberOfComponents) {
-	  'use strict';
-
-	  if (srcPrj === tgtPrj) {
-	    return coordinates;
-	  }
-
-	  var trans = transform({source: srcPrj, target: tgtPrj}), output;
-	  if (util.isObject(coordinates) && 'x' in coordinates && 'y' in coordinates) {
-	    output = trans.forward({x: coordinates.x, y: coordinates.y, z: coordinates.z || 0});
-	    if ('z' in coordinates) {
-	      return output;
-	    }
-	    return {x: output.x, y: output.y};
-	  }
-	  if (Array.isArray(coordinates) && coordinates.length === 1 &&
-	      util.isObject(coordinates[0]) && 'x' in coordinates[0] &&
-	      'y' in coordinates[0]) {
-	    output = trans.forward({x: coordinates[0].x, y: coordinates[0].y, z: coordinates[0].z || 0});
-	    if ('z' in coordinates[0]) {
-	      return [output];
-	    }
-	    return [{x: output.x, y: output.y}];
-	  }
-	  return transform.transformCoordinatesArray(trans, coordinates, numberOfComponents);
-	};
-
-	/**
-	 * Transform an array of coordinates from one projection into another.  The
-	 * transformation may occur in place (modifying the input coordinate array),
-	 * depending on the input format.  The coordinates can be an array of 2 or 3
-	 * values, or an array of either of those, or a single flat array with 2 or 3
-	 * components per coordinate.  The array is modified in place.
-	 *
-	 * @param {transform} trans The transformation object.
-	 * @param {geoPosition[]|number[]} coordinates An array of coordinate
-	 *      objects or a flat array.
-	 * @param {number} numberOfComponents For flat arrays, either 2 or 3.
-	 * @returns {geoPosition[]|number[]} The transformed coordinates
-	 */
-	transform.transformCoordinatesArray = function (trans, coordinates, numberOfComponents) {
-	  var i, count, offset, xAcc, yAcc, zAcc, writer, output, projPoint;
-
-	  // Default Z accessor
-	  zAcc = function () {
-	    return 0.0;
-	  };
-
-	  // Helper methods
-	  function handleArrayCoordinates() {
-	    if (Array.isArray(coordinates[0])) {
-	      if (coordinates[0].length === 2) {
-	        xAcc = function (index) {
-	          return coordinates[index][0];
-	        };
-	        yAcc = function (index) {
-	          return coordinates[index][1];
-	        };
-	        writer = function (index, x, y) {
-	          output[index] = [x, y];
-	        };
-	      } else if (coordinates[0].length === 3) {
-	        xAcc = function (index) {
-	          return coordinates[index][0];
-	        };
-	        yAcc = function (index) {
-	          return coordinates[index][1];
-	        };
-	        zAcc = function (index) {
-	          return coordinates[index][2];
-	        };
-	        writer = function (index, x, y, z) {
-	          output[index] = [x, y, z];
-	        };
-	      } else {
-	        throw new Error('Invalid coordinates. Requires two or three components per array');
-	      }
-	    } else {
-	      if (coordinates.length === 2) {
-	        offset = 2;
-
-	        xAcc = function (index) {
-	          return coordinates[index * offset];
-	        };
-	        yAcc = function (index) {
-	          return coordinates[index * offset + 1];
-	        };
-	        writer = function (index, x, y) {
-	          output[index] = x;
-	          output[index + 1] = y;
-	        };
-	      } else if (coordinates.length === 3) {
-	        offset = 3;
-
-	        xAcc = function (index) {
-	          return coordinates[index * offset];
-	        };
-	        yAcc = function (index) {
-	          return coordinates[index * offset + 1];
-	        };
-	        zAcc = function (index) {
-	          return coordinates[index * offset + 2];
-	        };
-	        writer = function (index, x, y, z) {
-	          output[index] = x;
-	          output[index + 1] = y;
-	          output[index + 2] = z;
-	        };
-	      } else if (numberOfComponents) {
-	        if (numberOfComponents === 2 || numberOfComponents === 3) {
-	          offset = numberOfComponents;
-
-	          xAcc = function (index) {
-	            return coordinates[index];
-	          };
-	          yAcc = function (index) {
-	            return coordinates[index + 1];
-	          };
-	          if (numberOfComponents === 2) {
-	            writer = function (index, x, y) {
-	              output[index] = x;
-	              output[index + 1] = y;
-	            };
-	          } else {
-	            zAcc = function (index) {
-	              return coordinates[index + 2];
-	            };
-	            writer = function (index, x, y, z) {
-	              output[index] = x;
-	              output[index + 1] = y;
-	              output[index + 2] = z;
-	            };
-	          }
-	        } else {
-	          throw new Error('Number of components should be two or three');
-	        }
-	      } else {
-	        throw new Error('Invalid coordinates');
-	      }
-	    }
-	  }
-
-	  // Helper methods
-	  function handleObjectCoordinates() {
-	    if (coordinates[0] &&
-	        'x' in coordinates[0] &&
-	        'y' in coordinates[0]) {
-	      xAcc = function (index) {
-	        return coordinates[index].x;
-	      };
-	      yAcc = function (index) {
-	        return coordinates[index].y;
-	      };
-
-	      if ('z' in coordinates[0]) {
-	        zAcc = function (index) {
-	          return coordinates[index].z;
-	        };
-	        writer = function (index, x, y, z) {
-	          output[i] = {x: x, y: y, z: z};
-	        };
-	      } else {
-	        writer = function (index, x, y) {
-	          output[index] = {x: x, y: y};
-	        };
-	      }
-	    } else {
-	      throw new Error('Invalid coordinates');
-	    }
-	  }
-
-	  if (Array.isArray(coordinates)) {
-	    output = [];
-	    output.length = coordinates.length;
-	    count = coordinates.length;
-
-	    if (!coordinates.length) {
-	      return output;
-	    }
-	    if (Array.isArray(coordinates[0]) || util.isObject(coordinates[0])) {
-	      offset = 1;
-
-	      if (Array.isArray(coordinates[0])) {
-	        handleArrayCoordinates();
-	      } else if (util.isObject(coordinates[0])) {
-	        handleObjectCoordinates();
-	      }
-	    } else {
-	      handleArrayCoordinates();
-	    }
-	  } else {
-	    throw new Error('Coordinates are not valid');
-	  }
-
-	  for (i = 0; i < count; i += offset) {
-	    projPoint = trans.forward({x: xAcc(i), y: yAcc(i), z: zAcc(i)});
-	    writer(i, projPoint.x, projPoint.y, projPoint.z);
-	  }
-	  return output;
-	};
-
-	/**
-	 * Apply an affine transformation consisting of a translation then a scaling
-	 * to the given coordinate array.  Note, the transformation occurs in place
-	 * so the input coordinate object are mutated.
-	 *
-	 * @param {object} def
-	 * @param {geo.geoPosition} def.origin The transformed origin
-	 * @param {object} def.scale The transformed scale factor.  This is an object
-	 *  with `x`, `y`, and `z` parameters.
-	 * @param {geo.geoPosition[]} coords An array of coordinate objects.
-	 * @returns {geo.geoPosition[]} The transformed coordinates.
-	 */
-	transform.affineForward = function (def, coords) {
-	  'use strict';
-	  var i, origin = def.origin, scale = def.scale || {x: 1, y: 1, z: 1};
-	  for (i = 0; i < coords.length; i += 1) {
-	    coords[i].x = (coords[i].x - origin.x) * scale.x;
-	    coords[i].y = (coords[i].y - origin.y) * scale.y;
-	    coords[i].z = ((coords[i].z || 0) - (origin.z || 0)) * scale.z;
-	  }
-	  return coords;
-	};
-
-	/**
-	 * Apply an inverse affine transformation which is the inverse to {@link
-	 * geo.transform.affineForward}.  Note, the transformation occurs in place so
-	 * the input coordinate object are mutated.
-	 *
-	 * @param {object} def
-	 * @param {geo.geoPosition} def.origin The transformed origin
-	 * @param {object} def.scale The transformed scale factor.  This is an object
-	 *  with `x`, `y`, and `z` parameters.
-	 * @param {geo.geoPosition[]} coords An array of coordinate objects.
-	 * @returns {geo.geoPosition[]} The transformed coordinates.
-	 */
-	transform.affineInverse = function (def, coords) {
-	  'use strict';
-	  var i, origin = def.origin, scale = def.scale || {x: 1, y: 1, z: 1};
-	  for (i = 0; i < coords.length; i += 1) {
-	    coords[i].x = coords[i].x / scale.x + origin.x;
-	    coords[i].y = coords[i].y / scale.y + origin.y;
-	    coords[i].z = (coords[i].z || 0) / scale.z + (origin.z || 0);
-	  }
-	  return coords;
-	};
-
-	module.exports = transform;
-
-
-/***/ }),
-/* 12 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var proj4 = __webpack_require__(13);
-	proj4.defaultDatum = 'WGS84'; //default datum
-	proj4.Proj = __webpack_require__(14);
-	proj4.WGS84 = new proj4.Proj('WGS84');
-	proj4.Point = __webpack_require__(40);
-	proj4.toPoint = __webpack_require__(39);
-	proj4.defs = __webpack_require__(16);
-	proj4.transform = __webpack_require__(35);
-	proj4.mgrs = __webpack_require__(41);
-	proj4.version = __webpack_require__(42);
-	__webpack_require__(43)(proj4);
-	module.exports = proj4;
-
-
-/***/ }),
-/* 13 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var proj = __webpack_require__(14);
-	var transform = __webpack_require__(35);
-	var wgs84 = proj('WGS84');
-
-	function transformer(from, to, coords) {
-	  var transformedArray;
-	  if (Array.isArray(coords)) {
-	    transformedArray = transform(from, to, coords);
-	    if (coords.length === 3) {
-	      return [transformedArray.x, transformedArray.y, transformedArray.z];
-	    }
-	    else {
-	      return [transformedArray.x, transformedArray.y];
-	    }
-	  }
-	  else {
-	    return transform(from, to, coords);
-	  }
-	}
-
-	function checkProj(item) {
-	  if (item instanceof proj) {
-	    return item;
-	  }
-	  if (item.oProj) {
-	    return item.oProj;
-	  }
-	  return proj(item);
-	}
-	function proj4(fromProj, toProj, coord) {
-	  fromProj = checkProj(fromProj);
-	  var single = false;
-	  var obj;
-	  if (typeof toProj === 'undefined') {
-	    toProj = fromProj;
-	    fromProj = wgs84;
-	    single = true;
-	  }
-	  else if (typeof toProj.x !== 'undefined' || Array.isArray(toProj)) {
-	    coord = toProj;
-	    toProj = fromProj;
-	    fromProj = wgs84;
-	    single = true;
-	  }
-	  toProj = checkProj(toProj);
-	  if (coord) {
-	    return transformer(fromProj, toProj, coord);
-	  }
-	  else {
-	    obj = {
-	      forward: function(coords) {
-	        return transformer(fromProj, toProj, coords);
-	      },
-	      inverse: function(coords) {
-	        return transformer(toProj, fromProj, coords);
-	      }
-	    };
-	    if (single) {
-	      obj.oProj = toProj;
-	    }
-	    return obj;
-	  }
-	}
-	module.exports = proj4;
-
-/***/ }),
-/* 14 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var parseCode = __webpack_require__(15);
-	var extend = __webpack_require__(22);
-	var projections = __webpack_require__(23);
-	var deriveConstants = __webpack_require__(31);
-	var Datum = __webpack_require__(33);
-	var datum = __webpack_require__(34);
-
-
-	function Projection(srsCode,callback) {
-	  if (!(this instanceof Projection)) {
-	    return new Projection(srsCode);
-	  }
-	  callback = callback || function(error){
-	    if(error){
-	      throw error;
-	    }
-	  };
-	  var json = parseCode(srsCode);
-	  if(typeof json !== 'object'){
-	    callback(srsCode);
-	    return;
-	  }
-	  var ourProj = Projection.projections.get(json.projName);
-	  if(!ourProj){
-	    callback(srsCode);
-	    return;
-	  }
-	  if (json.datumCode && json.datumCode !== 'none') {
-	    var datumDef = Datum[json.datumCode];
-	    if (datumDef) {
-	      json.datum_params = datumDef.towgs84 ? datumDef.towgs84.split(',') : null;
-	      json.ellps = datumDef.ellipse;
-	      json.datumName = datumDef.datumName ? datumDef.datumName : json.datumCode;
-	    }
-	  }
-	  json.k0 = json.k0 || 1.0;
-	  json.axis = json.axis || 'enu';
-
-	  var sphere = deriveConstants.sphere(json.a, json.b, json.rf, json.ellps, json.sphere);
-	  var ecc = deriveConstants.eccentricity(sphere.a, sphere.b, sphere.rf, json.R_A);
-	  var datumObj = json.datum || datum(json.datumCode, json.datum_params, sphere.a, sphere.b, ecc.es, ecc.ep2);
-
-	  extend(this, json); // transfer everything over from the projection because we don't know what we'll need
-	  extend(this, ourProj); // transfer all the methods from the projection
-
-	  // copy the 4 things over we calulated in deriveConstants.sphere
-	  this.a = sphere.a;
-	  this.b = sphere.b;
-	  this.rf = sphere.rf;
-	  this.sphere = sphere.sphere;
-
-	  // copy the 3 things we calculated in deriveConstants.eccentricity
-	  this.es = ecc.es;
-	  this.e = ecc.e;
-	  this.ep2 = ecc.ep2;
-
-	  // add in the datum object
-	  this.datum = datumObj;
-
-	  // init the projection
-	  this.init();
-
-	  // legecy callback from back in the day when it went to spatialreference.org
-	  callback(null, this);
-
-	}
-	Projection.projections = projections;
-	Projection.projections.start();
-	module.exports = Projection;
-
-
-/***/ }),
-/* 15 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var defs = __webpack_require__(16);
-	var wkt = __webpack_require__(21);
-	var projStr = __webpack_require__(18);
-	function testObj(code){
-	  return typeof code === 'string';
-	}
-	function testDef(code){
-	  return code in defs;
-	}
-	var codeWords = ['GEOGCS','GEOCCS','PROJCS','LOCAL_CS'];
-
-	function testWKT(code){
-	  return codeWords.some(function (word) {
-	    return code.indexOf(word) > -1;
-	  });
-	}
-	function testProj(code){
-	  return code[0] === '+';
-	}
-	function parse(code){
-	  if (testObj(code)) {
-	    //check to see if this is a WKT string
-	    if (testDef(code)) {
-	      return defs[code];
-	    }
-	    if (testWKT(code)) {
-	      return wkt(code);
-	    }
-	    if (testProj(code)) {
-	      return projStr(code);
-	    }
-	  }else{
-	    return code;
-	  }
-	}
-
-	module.exports = parse;
-
-
-/***/ }),
-/* 16 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var globals = __webpack_require__(17);
-	var parseProj = __webpack_require__(18);
-	var wkt = __webpack_require__(21);
-
-	function defs(name) {
-	  /*global console*/
-	  var that = this;
-	  if (arguments.length === 2) {
-	    var def = arguments[1];
-	    if (typeof def === 'string') {
-	      if (def.charAt(0) === '+') {
-	        defs[name] = parseProj(arguments[1]);
-	      }
-	      else {
-	        defs[name] = wkt(arguments[1]);
-	      }
-	    } else {
-	      defs[name] = def;
-	    }
-	  }
-	  else if (arguments.length === 1) {
-	    if (Array.isArray(name)) {
-	      return name.map(function(v) {
-	        if (Array.isArray(v)) {
-	          defs.apply(that, v);
-	        }
-	        else {
-	          defs(v);
-	        }
-	      });
-	    }
-	    else if (typeof name === 'string') {
-	      if (name in defs) {
-	        return defs[name];
-	      }
-	    }
-	    else if ('EPSG' in name) {
-	      defs['EPSG:' + name.EPSG] = name;
-	    }
-	    else if ('ESRI' in name) {
-	      defs['ESRI:' + name.ESRI] = name;
-	    }
-	    else if ('IAU2000' in name) {
-	      defs['IAU2000:' + name.IAU2000] = name;
-	    }
-	    else {
-	      console.log(name);
-	    }
-	    return;
-	  }
-
-
-	}
-	globals(defs);
-	module.exports = defs;
-
-
-/***/ }),
-/* 17 */
-/***/ (function(module, exports) {
-
-	module.exports = function(defs) {
-	  defs('EPSG:4326', "+title=WGS 84 (long/lat) +proj=longlat +ellps=WGS84 +datum=WGS84 +units=degrees");
-	  defs('EPSG:4269', "+title=NAD83 (long/lat) +proj=longlat +a=6378137.0 +b=6356752.31414036 +ellps=GRS80 +datum=NAD83 +units=degrees");
-	  defs('EPSG:3857', "+title=WGS 84 / Pseudo-Mercator +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs");
-
-	  defs.WGS84 = defs['EPSG:4326'];
-	  defs['EPSG:3785'] = defs['EPSG:3857']; // maintain backward compat, official code is 3857
-	  defs.GOOGLE = defs['EPSG:3857'];
-	  defs['EPSG:900913'] = defs['EPSG:3857'];
-	  defs['EPSG:102113'] = defs['EPSG:3857'];
-	};
-
-
-/***/ }),
-/* 18 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var D2R = 0.01745329251994329577;
-	var PrimeMeridian = __webpack_require__(19);
-	var units = __webpack_require__(20);
-
-	module.exports = function(defData) {
-	  var self = {};
-	  var paramObj = defData.split('+').map(function(v) {
-	    return v.trim();
-	  }).filter(function(a) {
-	    return a;
-	  }).reduce(function(p, a) {
-	    var split = a.split('=');
-	    split.push(true);
-	    p[split[0].toLowerCase()] = split[1];
-	    return p;
-	  }, {});
-	  var paramName, paramVal, paramOutname;
-	  var params = {
-	    proj: 'projName',
-	    datum: 'datumCode',
-	    rf: function(v) {
-	      self.rf = parseFloat(v);
-	    },
-	    lat_0: function(v) {
-	      self.lat0 = v * D2R;
-	    },
-	    lat_1: function(v) {
-	      self.lat1 = v * D2R;
-	    },
-	    lat_2: function(v) {
-	      self.lat2 = v * D2R;
-	    },
-	    lat_ts: function(v) {
-	      self.lat_ts = v * D2R;
-	    },
-	    lon_0: function(v) {
-	      self.long0 = v * D2R;
-	    },
-	    lon_1: function(v) {
-	      self.long1 = v * D2R;
-	    },
-	    lon_2: function(v) {
-	      self.long2 = v * D2R;
-	    },
-	    alpha: function(v) {
-	      self.alpha = parseFloat(v) * D2R;
-	    },
-	    lonc: function(v) {
-	      self.longc = v * D2R;
-	    },
-	    x_0: function(v) {
-	      self.x0 = parseFloat(v);
-	    },
-	    y_0: function(v) {
-	      self.y0 = parseFloat(v);
-	    },
-	    k_0: function(v) {
-	      self.k0 = parseFloat(v);
-	    },
-	    k: function(v) {
-	      self.k0 = parseFloat(v);
-	    },
-	    a: function(v) {
-	      self.a = parseFloat(v);
-	    },
-	    b: function(v) {
-	      self.b = parseFloat(v);
-	    },
-	    r_a: function() {
-	      self.R_A = true;
-	    },
-	    zone: function(v) {
-	      self.zone = parseInt(v, 10);
-	    },
-	    south: function() {
-	      self.utmSouth = true;
-	    },
-	    towgs84: function(v) {
-	      self.datum_params = v.split(",").map(function(a) {
-	        return parseFloat(a);
-	      });
-	    },
-	    to_meter: function(v) {
-	      self.to_meter = parseFloat(v);
-	    },
-	    units: function(v) {
-	      self.units = v;
-	      if (units[v]) {
-	        self.to_meter = units[v].to_meter;
-	      }
-	    },
-	    from_greenwich: function(v) {
-	      self.from_greenwich = v * D2R;
-	    },
-	    pm: function(v) {
-	      self.from_greenwich = (PrimeMeridian[v] ? PrimeMeridian[v] : parseFloat(v)) * D2R;
-	    },
-	    nadgrids: function(v) {
-	      if (v === '@null') {
-	        self.datumCode = 'none';
-	      }
-	      else {
-	        self.nadgrids = v;
-	      }
-	    },
-	    axis: function(v) {
-	      var legalAxis = "ewnsud";
-	      if (v.length === 3 && legalAxis.indexOf(v.substr(0, 1)) !== -1 && legalAxis.indexOf(v.substr(1, 1)) !== -1 && legalAxis.indexOf(v.substr(2, 1)) !== -1) {
-	        self.axis = v;
-	      }
-	    }
-	  };
-	  for (paramName in paramObj) {
-	    paramVal = paramObj[paramName];
-	    if (paramName in params) {
-	      paramOutname = params[paramName];
-	      if (typeof paramOutname === 'function') {
-	        paramOutname(paramVal);
-	      }
-	      else {
-	        self[paramOutname] = paramVal;
-	      }
-	    }
-	    else {
-	      self[paramName] = paramVal;
-	    }
-	  }
-	  if(typeof self.datumCode === 'string' && self.datumCode !== "WGS84"){
-	    self.datumCode = self.datumCode.toLowerCase();
-	  }
-	  return self;
-	};
-
-
-/***/ }),
-/* 19 */
-/***/ (function(module, exports) {
-
-	exports.greenwich = 0.0; //"0dE",
-	exports.lisbon = -9.131906111111; //"9d07'54.862\"W",
-	exports.paris = 2.337229166667; //"2d20'14.025\"E",
-	exports.bogota = -74.080916666667; //"74d04'51.3\"W",
-	exports.madrid = -3.687938888889; //"3d41'16.58\"W",
-	exports.rome = 12.452333333333; //"12d27'8.4\"E",
-	exports.bern = 7.439583333333; //"7d26'22.5\"E",
-	exports.jakarta = 106.807719444444; //"106d48'27.79\"E",
-	exports.ferro = -17.666666666667; //"17d40'W",
-	exports.brussels = 4.367975; //"4d22'4.71\"E",
-	exports.stockholm = 18.058277777778; //"18d3'29.8\"E",
-	exports.athens = 23.7163375; //"23d42'58.815\"E",
-	exports.oslo = 10.722916666667; //"10d43'22.5\"E"
-
-/***/ }),
-/* 20 */
-/***/ (function(module, exports) {
-
-	exports.ft = {to_meter: 0.3048};
-	exports['us-ft'] = {to_meter: 1200 / 3937};
-
-
-/***/ }),
-/* 21 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var D2R = 0.01745329251994329577;
-	var extend = __webpack_require__(22);
-
-	function mapit(obj, key, v) {
-	  obj[key] = v.map(function(aa) {
-	    var o = {};
-	    sExpr(aa, o);
-	    return o;
-	  }).reduce(function(a, b) {
-	    return extend(a, b);
-	  }, {});
-	}
-
-	function sExpr(v, obj) {
-	  var key;
-	  if (!Array.isArray(v)) {
-	    obj[v] = true;
-	    return;
-	  }
-	  else {
-	    key = v.shift();
-	    if (key === 'PARAMETER') {
-	      key = v.shift();
-	    }
-	    if (v.length === 1) {
-	      if (Array.isArray(v[0])) {
-	        obj[key] = {};
-	        sExpr(v[0], obj[key]);
-	      }
-	      else {
-	        obj[key] = v[0];
-	      }
-	    }
-	    else if (!v.length) {
-	      obj[key] = true;
-	    }
-	    else if (key === 'TOWGS84') {
-	      obj[key] = v;
-	    }
-	    else {
-	      obj[key] = {};
-	      if (['UNIT', 'PRIMEM', 'VERT_DATUM'].indexOf(key) > -1) {
-	        obj[key] = {
-	          name: v[0].toLowerCase(),
-	          convert: v[1]
-	        };
-	        if (v.length === 3) {
-	          obj[key].auth = v[2];
-	        }
-	      }
-	      else if (key === 'SPHEROID') {
-	        obj[key] = {
-	          name: v[0],
-	          a: v[1],
-	          rf: v[2]
-	        };
-	        if (v.length === 4) {
-	          obj[key].auth = v[3];
-	        }
-	      }
-	      else if (['GEOGCS', 'GEOCCS', 'DATUM', 'VERT_CS', 'COMPD_CS', 'LOCAL_CS', 'FITTED_CS', 'LOCAL_DATUM'].indexOf(key) > -1) {
-	        v[0] = ['name', v[0]];
-	        mapit(obj, key, v);
-	      }
-	      else if (v.every(function(aa) {
-	        return Array.isArray(aa);
-	      })) {
-	        mapit(obj, key, v);
-	      }
-	      else {
-	        sExpr(v, obj[key]);
-	      }
-	    }
-	  }
-	}
-
-	function rename(obj, params) {
-	  var outName = params[0];
-	  var inName = params[1];
-	  if (!(outName in obj) && (inName in obj)) {
-	    obj[outName] = obj[inName];
-	    if (params.length === 3) {
-	      obj[outName] = params[2](obj[outName]);
-	    }
-	  }
-	}
-
-	function d2r(input) {
-	  return input * D2R;
-	}
-
-	function cleanWKT(wkt) {
-	  if (wkt.type === 'GEOGCS') {
-	    wkt.projName = 'longlat';
-	  }
-	  else if (wkt.type === 'LOCAL_CS') {
-	    wkt.projName = 'identity';
-	    wkt.local = true;
-	  }
-	  else {
-	    if (typeof wkt.PROJECTION === "object") {
-	      wkt.projName = Object.keys(wkt.PROJECTION)[0];
-	    }
-	    else {
-	      wkt.projName = wkt.PROJECTION;
-	    }
-	  }
-	  if (wkt.UNIT) {
-	    wkt.units = wkt.UNIT.name.toLowerCase();
-	    if (wkt.units === 'metre') {
-	      wkt.units = 'meter';
-	    }
-	    if (wkt.UNIT.convert) {
-	      if (wkt.type === 'GEOGCS') {
-	        if (wkt.DATUM && wkt.DATUM.SPHEROID) {
-	          wkt.to_meter = parseFloat(wkt.UNIT.convert, 10)*wkt.DATUM.SPHEROID.a;
-	        }
-	      } else {
-	        wkt.to_meter = parseFloat(wkt.UNIT.convert, 10);
-	      }
-	    }
-	  }
-
-	  if (wkt.GEOGCS) {
-	    //if(wkt.GEOGCS.PRIMEM&&wkt.GEOGCS.PRIMEM.convert){
-	    //  wkt.from_greenwich=wkt.GEOGCS.PRIMEM.convert*D2R;
-	    //}
-	    if (wkt.GEOGCS.DATUM) {
-	      wkt.datumCode = wkt.GEOGCS.DATUM.name.toLowerCase();
-	    }
-	    else {
-	      wkt.datumCode = wkt.GEOGCS.name.toLowerCase();
-	    }
-	    if (wkt.datumCode.slice(0, 2) === 'd_') {
-	      wkt.datumCode = wkt.datumCode.slice(2);
-	    }
-	    if (wkt.datumCode === 'new_zealand_geodetic_datum_1949' || wkt.datumCode === 'new_zealand_1949') {
-	      wkt.datumCode = 'nzgd49';
-	    }
-	    if (wkt.datumCode === "wgs_1984") {
-	      if (wkt.PROJECTION === 'Mercator_Auxiliary_Sphere') {
-	        wkt.sphere = true;
-	      }
-	      wkt.datumCode = 'wgs84';
-	    }
-	    if (wkt.datumCode.slice(-6) === '_ferro') {
-	      wkt.datumCode = wkt.datumCode.slice(0, - 6);
-	    }
-	    if (wkt.datumCode.slice(-8) === '_jakarta') {
-	      wkt.datumCode = wkt.datumCode.slice(0, - 8);
-	    }
-	    if (~wkt.datumCode.indexOf('belge')) {
-	      wkt.datumCode = "rnb72";
-	    }
-	    if (wkt.GEOGCS.DATUM && wkt.GEOGCS.DATUM.SPHEROID) {
-	      wkt.ellps = wkt.GEOGCS.DATUM.SPHEROID.name.replace('_19', '').replace(/[Cc]larke\_18/, 'clrk');
-	      if (wkt.ellps.toLowerCase().slice(0, 13) === "international") {
-	        wkt.ellps = 'intl';
-	      }
-
-	      wkt.a = wkt.GEOGCS.DATUM.SPHEROID.a;
-	      wkt.rf = parseFloat(wkt.GEOGCS.DATUM.SPHEROID.rf, 10);
-	    }
-	    if (~wkt.datumCode.indexOf('osgb_1936')) {
-	      wkt.datumCode = "osgb36";
-	    }
-	  }
-	  if (wkt.b && !isFinite(wkt.b)) {
-	    wkt.b = wkt.a;
-	  }
-
-	  function toMeter(input) {
-	    var ratio = wkt.to_meter || 1;
-	    return parseFloat(input, 10) * ratio;
-	  }
-	  var renamer = function(a) {
-	    return rename(wkt, a);
-	  };
-	  var list = [
-	    ['standard_parallel_1', 'Standard_Parallel_1'],
-	    ['standard_parallel_2', 'Standard_Parallel_2'],
-	    ['false_easting', 'False_Easting'],
-	    ['false_northing', 'False_Northing'],
-	    ['central_meridian', 'Central_Meridian'],
-	    ['latitude_of_origin', 'Latitude_Of_Origin'],
-	    ['latitude_of_origin', 'Central_Parallel'],
-	    ['scale_factor', 'Scale_Factor'],
-	    ['k0', 'scale_factor'],
-	    ['latitude_of_center', 'Latitude_of_center'],
-	    ['lat0', 'latitude_of_center', d2r],
-	    ['longitude_of_center', 'Longitude_Of_Center'],
-	    ['longc', 'longitude_of_center', d2r],
-	    ['x0', 'false_easting', toMeter],
-	    ['y0', 'false_northing', toMeter],
-	    ['long0', 'central_meridian', d2r],
-	    ['lat0', 'latitude_of_origin', d2r],
-	    ['lat0', 'standard_parallel_1', d2r],
-	    ['lat1', 'standard_parallel_1', d2r],
-	    ['lat2', 'standard_parallel_2', d2r],
-	    ['alpha', 'azimuth', d2r],
-	    ['srsCode', 'name']
-	  ];
-	  list.forEach(renamer);
-	  if (!wkt.long0 && wkt.longc && (wkt.projName === 'Albers_Conic_Equal_Area' || wkt.projName === "Lambert_Azimuthal_Equal_Area")) {
-	    wkt.long0 = wkt.longc;
-	  }
-	  if (!wkt.lat_ts && wkt.lat1 && (wkt.projName === 'Stereographic_South_Pole' || wkt.projName === 'Polar Stereographic (variant B)')) {
-	    wkt.lat0 = d2r(wkt.lat1 > 0 ? 90 : -90);
-	    wkt.lat_ts = wkt.lat1;
-	  }
-	}
-	module.exports = function(wkt, self) {
-	  var lisp = JSON.parse(("," + wkt).replace(/\s*\,\s*([A-Z_0-9]+?)(\[)/g, ',["$1",').slice(1).replace(/\s*\,\s*([A-Z_0-9]+?)\]/g, ',"$1"]').replace(/,\["VERTCS".+/,''));
-	  var type = lisp.shift();
-	  var name = lisp.shift();
-	  lisp.unshift(['name', name]);
-	  lisp.unshift(['type', type]);
-	  lisp.unshift('output');
-	  var obj = {};
-	  sExpr(lisp, obj);
-	  cleanWKT(obj.output);
-	  return extend(self, obj.output);
-	};
-
-
-/***/ }),
-/* 22 */
-/***/ (function(module, exports) {
-
-	module.exports = function(destination, source) {
-	  destination = destination || {};
-	  var value, property;
-	  if (!source) {
-	    return destination;
-	  }
-	  for (property in source) {
-	    value = source[property];
-	    if (value !== undefined) {
-	      destination[property] = value;
-	    }
-	  }
-	  return destination;
-	};
-
-
-/***/ }),
-/* 23 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var projs = [
-	  __webpack_require__(24),
-	  __webpack_require__(30)
-	];
-	var names = {};
-	var projStore = [];
-
-	function add(proj, i) {
-	  var len = projStore.length;
-	  if (!proj.names) {
-	    console.log(i);
-	    return true;
-	  }
-	  projStore[len] = proj;
-	  proj.names.forEach(function(n) {
-	    names[n.toLowerCase()] = len;
-	  });
-	  return this;
-	}
-
-	exports.add = add;
-
-	exports.get = function(name) {
-	  if (!name) {
-	    return false;
-	  }
-	  var n = name.toLowerCase();
-	  if (typeof names[n] !== 'undefined' && projStore[names[n]]) {
-	    return projStore[names[n]];
-	  }
-	};
-	exports.start = function() {
-	  projs.forEach(add);
-	};
-
-
-/***/ }),
-/* 24 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var msfnz = __webpack_require__(25);
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	var R2D = 57.29577951308232088;
-	var adjust_lon = __webpack_require__(26);
-	var FORTPI = Math.PI/4;
-	var tsfnz = __webpack_require__(28);
-	var phi2z = __webpack_require__(29);
-	exports.init = function() {
-	  var con = this.b / this.a;
-	  this.es = 1 - con * con;
-	  if(!('x0' in this)){
-	    this.x0 = 0;
-	  }
-	  if(!('y0' in this)){
-	    this.y0 = 0;
-	  }
-	  this.e = Math.sqrt(this.es);
-	  if (this.lat_ts) {
-	    if (this.sphere) {
-	      this.k0 = Math.cos(this.lat_ts);
-	    }
-	    else {
-	      this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
-	    }
-	  }
-	  else {
-	    if (!this.k0) {
-	      if (this.k) {
-	        this.k0 = this.k;
-	      }
-	      else {
-	        this.k0 = 1;
-	      }
-	    }
-	  }
-	};
-
-	/* Mercator forward equations--mapping lat,long to x,y
-	  --------------------------------------------------*/
-
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  // convert to radians
-	  if (lat * R2D > 90 && lat * R2D < -90 && lon * R2D > 180 && lon * R2D < -180) {
-	    return null;
-	  }
-
-	  var x, y;
-	  if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
-	    return null;
-	  }
-	  else {
-	    if (this.sphere) {
-	      x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
-	      y = this.y0 + this.a * this.k0 * Math.log(Math.tan(FORTPI + 0.5 * lat));
-	    }
-	    else {
-	      var sinphi = Math.sin(lat);
-	      var ts = tsfnz(this.e, lat, sinphi);
-	      x = this.x0 + this.a * this.k0 * adjust_lon(lon - this.long0);
-	      y = this.y0 - this.a * this.k0 * Math.log(ts);
-	    }
-	    p.x = x;
-	    p.y = y;
-	    return p;
-	  }
-	};
-
-
-	/* Mercator inverse equations--mapping x,y to lat/long
-	  --------------------------------------------------*/
-	exports.inverse = function(p) {
-
-	  var x = p.x - this.x0;
-	  var y = p.y - this.y0;
-	  var lon, lat;
-
-	  if (this.sphere) {
-	    lat = HALF_PI - 2 * Math.atan(Math.exp(-y / (this.a * this.k0)));
-	  }
-	  else {
-	    var ts = Math.exp(-y / (this.a * this.k0));
-	    lat = phi2z(this.e, ts);
-	    if (lat === -9999) {
-	      return null;
-	    }
-	  }
-	  lon = adjust_lon(this.long0 + x / (this.a * this.k0));
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-
-	exports.names = ["Mercator", "Popular Visualisation Pseudo Mercator", "Mercator_1SP", "Mercator_Auxiliary_Sphere", "merc"];
-
-
-/***/ }),
-/* 25 */
-/***/ (function(module, exports) {
-
-	module.exports = function(eccent, sinphi, cosphi) {
-	  var con = eccent * sinphi;
-	  return cosphi / (Math.sqrt(1 - con * con));
-	};
-
-/***/ }),
-/* 26 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var TWO_PI = Math.PI * 2;
-	// SPI is slightly greater than Math.PI, so values that exceed the -180..180
-	// degree range by a tiny amount don't get wrapped. This prevents points that
-	// have drifted from their original location along the 180th meridian (due to
-	// floating point error) from changing their sign.
-	var SPI = 3.14159265359;
-	var sign = __webpack_require__(27);
-
-	module.exports = function(x) {
-	  return (Math.abs(x) <= SPI) ? x : (x - (sign(x) * TWO_PI));
-	};
-
-/***/ }),
-/* 27 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  return x<0 ? -1 : 1;
-	};
-
-/***/ }),
-/* 28 */
-/***/ (function(module, exports) {
-
-	var HALF_PI = Math.PI/2;
-
-	module.exports = function(eccent, phi, sinphi) {
-	  var con = eccent * sinphi;
-	  var com = 0.5 * eccent;
-	  con = Math.pow(((1 - con) / (1 + con)), com);
-	  return (Math.tan(0.5 * (HALF_PI - phi)) / con);
-	};
-
-/***/ }),
-/* 29 */
-/***/ (function(module, exports) {
-
-	var HALF_PI = Math.PI/2;
-	module.exports = function(eccent, ts) {
-	  var eccnth = 0.5 * eccent;
-	  var con, dphi;
-	  var phi = HALF_PI - 2 * Math.atan(ts);
-	  for (var i = 0; i <= 15; i++) {
-	    con = eccent * Math.sin(phi);
-	    dphi = HALF_PI - 2 * Math.atan(ts * (Math.pow(((1 - con) / (1 + con)), eccnth))) - phi;
-	    phi += dphi;
-	    if (Math.abs(dphi) <= 0.0000000001) {
-	      return phi;
-	    }
-	  }
-	  //console.log("phi2z has NoConvergence");
-	  return -9999;
-	};
-
-/***/ }),
-/* 30 */
-/***/ (function(module, exports) {
-
-	exports.init = function() {
-	  //no-op for longlat
-	};
-
-	function identity(pt) {
-	  return pt;
-	}
-	exports.forward = identity;
-	exports.inverse = identity;
-	exports.names = ["longlat", "identity"];
-
-
-/***/ }),
-/* 31 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	// ellipoid pj_set_ell.c
-	var SIXTH = 0.1666666666666666667;
-	/* 1/6 */
-	var RA4 = 0.04722222222222222222;
-	/* 17/360 */
-	var RA6 = 0.02215608465608465608;
-	var EPSLN = 1.0e-10;
-	var Ellipsoid = __webpack_require__(32);
-
-	exports.eccentricity = function(a, b, rf, R_A) {
-	  var a2 = a * a; // used in geocentric
-	  var b2 = b * b; // used in geocentric
-	  var es = (a2 - b2) / a2; // e ^ 2
-	  var e = 0;
-	  if (R_A) {
-	    a *= 1 - es * (SIXTH + es * (RA4 + es * RA6));
-	    a2 = a * a;
-	    es = 0;
-	  } else {
-	    e = Math.sqrt(es); // eccentricity
-	  }
-	  var ep2 = (a2 - b2) / b2; // used in geocentric
-	  return {
-	    es: es,
-	    e: e,
-	    ep2: ep2
-	  };
-	};
-	exports.sphere = function (a, b, rf, ellps, sphere) {
-	  if (!a) { // do we have an ellipsoid?
-	    var ellipse = Ellipsoid[ellps];
-	    if (!ellipse) {
-	      ellipse = Ellipsoid.WGS84;
-	    }
-	    a = ellipse.a;
-	    b = ellipse.b;
-	    rf = ellipse.rf;
-	  }
-
-	  if (rf && !b) {
-	    b = (1.0 - 1.0 / rf) * a;
-	  }
-	  if (rf === 0 || Math.abs(a - b) < EPSLN) {
-	    sphere = true;
-	    b = a;
-	  }
-	  return {
-	    a: a,
-	    b: b,
-	    rf: rf,
-	    sphere: sphere
-	  };
-	};
-
-
-/***/ }),
-/* 32 */
-/***/ (function(module, exports) {
-
-	exports.MERIT = {
-	  a: 6378137.0,
-	  rf: 298.257,
-	  ellipseName: "MERIT 1983"
-	};
-	exports.SGS85 = {
-	  a: 6378136.0,
-	  rf: 298.257,
-	  ellipseName: "Soviet Geodetic System 85"
-	};
-	exports.GRS80 = {
-	  a: 6378137.0,
-	  rf: 298.257222101,
-	  ellipseName: "GRS 1980(IUGG, 1980)"
-	};
-	exports.IAU76 = {
-	  a: 6378140.0,
-	  rf: 298.257,
-	  ellipseName: "IAU 1976"
-	};
-	exports.airy = {
-	  a: 6377563.396,
-	  b: 6356256.910,
-	  ellipseName: "Airy 1830"
-	};
-	exports.APL4 = {
-	  a: 6378137,
-	  rf: 298.25,
-	  ellipseName: "Appl. Physics. 1965"
-	};
-	exports.NWL9D = {
-	  a: 6378145.0,
-	  rf: 298.25,
-	  ellipseName: "Naval Weapons Lab., 1965"
-	};
-	exports.mod_airy = {
-	  a: 6377340.189,
-	  b: 6356034.446,
-	  ellipseName: "Modified Airy"
-	};
-	exports.andrae = {
-	  a: 6377104.43,
-	  rf: 300.0,
-	  ellipseName: "Andrae 1876 (Den., Iclnd.)"
-	};
-	exports.aust_SA = {
-	  a: 6378160.0,
-	  rf: 298.25,
-	  ellipseName: "Australian Natl & S. Amer. 1969"
-	};
-	exports.GRS67 = {
-	  a: 6378160.0,
-	  rf: 298.2471674270,
-	  ellipseName: "GRS 67(IUGG 1967)"
-	};
-	exports.bessel = {
-	  a: 6377397.155,
-	  rf: 299.1528128,
-	  ellipseName: "Bessel 1841"
-	};
-	exports.bess_nam = {
-	  a: 6377483.865,
-	  rf: 299.1528128,
-	  ellipseName: "Bessel 1841 (Namibia)"
-	};
-	exports.clrk66 = {
-	  a: 6378206.4,
-	  b: 6356583.8,
-	  ellipseName: "Clarke 1866"
-	};
-	exports.clrk80 = {
-	  a: 6378249.145,
-	  rf: 293.4663,
-	  ellipseName: "Clarke 1880 mod."
-	};
-	exports.clrk58 = {
-	  a: 6378293.645208759,
-	  rf: 294.2606763692654,
-	  ellipseName: "Clarke 1858"
-	};
-	exports.CPM = {
-	  a: 6375738.7,
-	  rf: 334.29,
-	  ellipseName: "Comm. des Poids et Mesures 1799"
-	};
-	exports.delmbr = {
-	  a: 6376428.0,
-	  rf: 311.5,
-	  ellipseName: "Delambre 1810 (Belgium)"
-	};
-	exports.engelis = {
-	  a: 6378136.05,
-	  rf: 298.2566,
-	  ellipseName: "Engelis 1985"
-	};
-	exports.evrst30 = {
-	  a: 6377276.345,
-	  rf: 300.8017,
-	  ellipseName: "Everest 1830"
-	};
-	exports.evrst48 = {
-	  a: 6377304.063,
-	  rf: 300.8017,
-	  ellipseName: "Everest 1948"
-	};
-	exports.evrst56 = {
-	  a: 6377301.243,
-	  rf: 300.8017,
-	  ellipseName: "Everest 1956"
-	};
-	exports.evrst69 = {
-	  a: 6377295.664,
-	  rf: 300.8017,
-	  ellipseName: "Everest 1969"
-	};
-	exports.evrstSS = {
-	  a: 6377298.556,
-	  rf: 300.8017,
-	  ellipseName: "Everest (Sabah & Sarawak)"
-	};
-	exports.fschr60 = {
-	  a: 6378166.0,
-	  rf: 298.3,
-	  ellipseName: "Fischer (Mercury Datum) 1960"
-	};
-	exports.fschr60m = {
-	  a: 6378155.0,
-	  rf: 298.3,
-	  ellipseName: "Fischer 1960"
-	};
-	exports.fschr68 = {
-	  a: 6378150.0,
-	  rf: 298.3,
-	  ellipseName: "Fischer 1968"
-	};
-	exports.helmert = {
-	  a: 6378200.0,
-	  rf: 298.3,
-	  ellipseName: "Helmert 1906"
-	};
-	exports.hough = {
-	  a: 6378270.0,
-	  rf: 297.0,
-	  ellipseName: "Hough"
-	};
-	exports.intl = {
-	  a: 6378388.0,
-	  rf: 297.0,
-	  ellipseName: "International 1909 (Hayford)"
-	};
-	exports.kaula = {
-	  a: 6378163.0,
-	  rf: 298.24,
-	  ellipseName: "Kaula 1961"
-	};
-	exports.lerch = {
-	  a: 6378139.0,
-	  rf: 298.257,
-	  ellipseName: "Lerch 1979"
-	};
-	exports.mprts = {
-	  a: 6397300.0,
-	  rf: 191.0,
-	  ellipseName: "Maupertius 1738"
-	};
-	exports.new_intl = {
-	  a: 6378157.5,
-	  b: 6356772.2,
-	  ellipseName: "New International 1967"
-	};
-	exports.plessis = {
-	  a: 6376523.0,
-	  rf: 6355863.0,
-	  ellipseName: "Plessis 1817 (France)"
-	};
-	exports.krass = {
-	  a: 6378245.0,
-	  rf: 298.3,
-	  ellipseName: "Krassovsky, 1942"
-	};
-	exports.SEasia = {
-	  a: 6378155.0,
-	  b: 6356773.3205,
-	  ellipseName: "Southeast Asia"
-	};
-	exports.walbeck = {
-	  a: 6376896.0,
-	  b: 6355834.8467,
-	  ellipseName: "Walbeck"
-	};
-	exports.WGS60 = {
-	  a: 6378165.0,
-	  rf: 298.3,
-	  ellipseName: "WGS 60"
-	};
-	exports.WGS66 = {
-	  a: 6378145.0,
-	  rf: 298.25,
-	  ellipseName: "WGS 66"
-	};
-	exports.WGS7 = {
-	  a: 6378135.0,
-	  rf: 298.26,
-	  ellipseName: "WGS 72"
-	};
-	exports.WGS84 = {
-	  a: 6378137.0,
-	  rf: 298.257223563,
-	  ellipseName: "WGS 84"
-	};
-	exports.sphere = {
-	  a: 6370997.0,
-	  b: 6370997.0,
-	  ellipseName: "Normal Sphere (r=6370997)"
-	};
-
-/***/ }),
-/* 33 */
-/***/ (function(module, exports) {
-
-	exports.wgs84 = {
-	  towgs84: "0,0,0",
-	  ellipse: "WGS84",
-	  datumName: "WGS84"
-	};
-	exports.ch1903 = {
-	  towgs84: "674.374,15.056,405.346",
-	  ellipse: "bessel",
-	  datumName: "swiss"
-	};
-	exports.ggrs87 = {
-	  towgs84: "-199.87,74.79,246.62",
-	  ellipse: "GRS80",
-	  datumName: "Greek_Geodetic_Reference_System_1987"
-	};
-	exports.nad83 = {
-	  towgs84: "0,0,0",
-	  ellipse: "GRS80",
-	  datumName: "North_American_Datum_1983"
-	};
-	exports.nad27 = {
-	  nadgrids: "@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",
-	  ellipse: "clrk66",
-	  datumName: "North_American_Datum_1927"
-	};
-	exports.potsdam = {
-	  towgs84: "606.0,23.0,413.0",
-	  ellipse: "bessel",
-	  datumName: "Potsdam Rauenberg 1950 DHDN"
-	};
-	exports.carthage = {
-	  towgs84: "-263.0,6.0,431.0",
-	  ellipse: "clark80",
-	  datumName: "Carthage 1934 Tunisia"
-	};
-	exports.hermannskogel = {
-	  towgs84: "653.0,-212.0,449.0",
-	  ellipse: "bessel",
-	  datumName: "Hermannskogel"
-	};
-	exports.ire65 = {
-	  towgs84: "482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",
-	  ellipse: "mod_airy",
-	  datumName: "Ireland 1965"
-	};
-	exports.rassadiran = {
-	  towgs84: "-133.63,-157.5,-158.62",
-	  ellipse: "intl",
-	  datumName: "Rassadiran"
-	};
-	exports.nzgd49 = {
-	  towgs84: "59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993",
-	  ellipse: "intl",
-	  datumName: "New Zealand Geodetic Datum 1949"
-	};
-	exports.osgb36 = {
-	  towgs84: "446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894",
-	  ellipse: "airy",
-	  datumName: "Airy 1830"
-	};
-	exports.s_jtsk = {
-	  towgs84: "589,76,480",
-	  ellipse: 'bessel',
-	  datumName: 'S-JTSK (Ferro)'
-	};
-	exports.beduaram = {
-	  towgs84: '-106,-87,188',
-	  ellipse: 'clrk80',
-	  datumName: 'Beduaram'
-	};
-	exports.gunung_segara = {
-	  towgs84: '-403,684,41',
-	  ellipse: 'bessel',
-	  datumName: 'Gunung Segara Jakarta'
-	};
-	exports.rnb72 = {
-	  towgs84: "106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1",
-	  ellipse: "intl",
-	  datumName: "Reseau National Belge 1972"
-	};
-
-/***/ }),
-/* 34 */
-/***/ (function(module, exports) {
-
-	var PJD_3PARAM = 1;
-	var PJD_7PARAM = 2;
-	var PJD_WGS84 = 4; // WGS84 or equivalent
-	var PJD_NODATUM = 5; // WGS84 or equivalent
-	var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
-
-	function datum(datumCode, datum_params, a, b, es, ep2) {
-	  var out = {};
-	  out.datum_type = PJD_WGS84; //default setting
-	  if (datumCode && datumCode === 'none') {
-	    out.datum_type = PJD_NODATUM;
-	  }
-
-	  if (datum_params) {
-	    out.datum_params = datum_params.map(parseFloat);
-	    if (out.datum_params[0] !== 0 || out.datum_params[1] !== 0 || out.datum_params[2] !== 0) {
-	      out.datum_type = PJD_3PARAM;
-	    }
-	    if (out.datum_params.length > 3) {
-	      if (out.datum_params[3] !== 0 || out.datum_params[4] !== 0 || out.datum_params[5] !== 0 || out.datum_params[6] !== 0) {
-	        out.datum_type = PJD_7PARAM;
-	        out.datum_params[3] *= SEC_TO_RAD;
-	        out.datum_params[4] *= SEC_TO_RAD;
-	        out.datum_params[5] *= SEC_TO_RAD;
-	        out.datum_params[6] = (out.datum_params[6] / 1000000.0) + 1.0;
-	      }
-	    }
-	  }
-
-
-	  out.a = a; //datum object also uses these values
-	  out.b = b;
-	  out.es = es;
-	  out.ep2 = ep2;
-	  return out;
-	}
-
-	module.exports = datum;
-
-
-/***/ }),
-/* 35 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var D2R = 0.01745329251994329577;
-	var R2D = 57.29577951308232088;
-	var PJD_3PARAM = 1;
-	var PJD_7PARAM = 2;
-	var datum_transform = __webpack_require__(36);
-	var adjust_axis = __webpack_require__(38);
-	var proj = __webpack_require__(14);
-	var toPoint = __webpack_require__(39);
-	function checkNotWGS(source, dest) {
-	  return ((source.datum.datum_type === PJD_3PARAM || source.datum.datum_type === PJD_7PARAM) && dest.datumCode !== 'WGS84') || ((dest.datum.datum_type === PJD_3PARAM || dest.datum.datum_type === PJD_7PARAM) && source.datumCode !== 'WGS84');
-	}
-	module.exports = function transform(source, dest, point) {
-	  var wgs84;
-	  if (Array.isArray(point)) {
-	    point = toPoint(point);
-	  }
-
-	  // Workaround for datum shifts towgs84, if either source or destination projection is not wgs84
-	  if (source.datum && dest.datum && checkNotWGS(source, dest)) {
-	    wgs84 = new proj('WGS84');
-	    point = transform(source, wgs84, point);
-	    source = wgs84;
-	  }
-	  // DGR, 2010/11/12
-	  if (source.axis !== 'enu') {
-	    point = adjust_axis(source, false, point);
-	  }
-	  // Transform source points to long/lat, if they aren't already.
-	  if (source.projName === 'longlat') {
-	    point = {
-	      x: point.x * D2R,
-	      y: point.y * D2R
-	    };
-	  }
-	  else {
-	    if (source.to_meter) {
-	      point = {
-	        x: point.x * source.to_meter,
-	        y: point.y * source.to_meter
-	      };
-	    }
-	    point = source.inverse(point); // Convert Cartesian to longlat
-	  }
-	  // Adjust for the prime meridian if necessary
-	  if (source.from_greenwich) {
-	    point.x += source.from_greenwich;
-	  }
-
-	  // Convert datums if needed, and if possible.
-	  point = datum_transform(source.datum, dest.datum, point);
-
-	  // Adjust for the prime meridian if necessary
-	  if (dest.from_greenwich) {
-	    point = {
-	      x: point.x - dest.grom_greenwich,
-	      y: point.y
-	    };
-	  }
-
-	  if (dest.projName === 'longlat') {
-	    // convert radians to decimal degrees
-	    point = {
-	      x: point.x * R2D,
-	      y: point.y * R2D
-	    };
-	  } else { // else project
-	    point = dest.forward(point);
-	    if (dest.to_meter) {
-	      point = {
-	        x: point.x / dest.to_meter,
-	        y: point.y / dest.to_meter
-	      };
-	    }
-	  }
-
-	  // DGR, 2010/11/12
-	  if (dest.axis !== 'enu') {
-	    return adjust_axis(dest, true, point);
-	  }
-
-	  return point;
-	};
-
-
-/***/ }),
-/* 36 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var PJD_3PARAM = 1;
-	var PJD_7PARAM = 2;
-	var PJD_NODATUM = 5; // WGS84 or equivalent
-	var datum = __webpack_require__(37);
-	function checkParams(type) {
-	  return (type === PJD_3PARAM || type === PJD_7PARAM);
-	}
-	module.exports = function(source, dest, point) {
-	  // Short cut if the datums are identical.
-	  if (datum.compareDatums(source, dest)) {
-	    return point; // in this case, zero is sucess,
-	    // whereas cs_compare_datums returns 1 to indicate TRUE
-	    // confusing, should fix this
-	  }
-
-	  // Explicitly skip datum transform by setting 'datum=none' as parameter for either source or dest
-	  if (source.datum_type === PJD_NODATUM || dest.datum_type === PJD_NODATUM) {
-	    return point;
-	  }
-
-	  // If this datum requires grid shifts, then apply it to geodetic coordinates.
-
-	  // Do we need to go through geocentric coordinates?
-	  if (source.es === dest.es && source.a === dest.a && !checkParams(source.datum_type) &&  !checkParams(dest.datum_type)) {
-	    return point;
-	  }
-
-	  // Convert to geocentric coordinates.
-	  point = datum.geodeticToGeocentric(point, source.es, source.a);
-	  // Convert between datums
-	  if (checkParams(source.datum_type)) {
-	    point = datum.geocentricToWgs84(point, source.datum_type, source.datum_params);
-	  }
-	  if (checkParams(dest.datum_type)) {
-	    point = datum.geocentricFromWgs84(point, dest.datum_type, dest.datum_params);
-	  }
-	  return datum.geocentricToGeodetic(point, dest.es, dest.a, dest.b);
-
-	};
-
-
-/***/ }),
-/* 37 */
-/***/ (function(module, exports) {
-
-	'use strict';
-	var PJD_3PARAM = 1;
-	var PJD_7PARAM = 2;
-	var HALF_PI = Math.PI/2;
-
-	exports.compareDatums = function(source, dest) {
-	  if (source.datum_type !== dest.datum_type) {
-	    return false; // false, datums are not equal
-	  } else if (source.a !== dest.a || Math.abs(this.es - dest.es) > 0.000000000050) {
-	    // the tolerence for es is to ensure that GRS80 and WGS84
-	    // are considered identical
-	    return false;
-	  } else if (source.datum_type === PJD_3PARAM) {
-	    return (this.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2]);
-	  } else if (source.datum_type === PJD_7PARAM) {
-	    return (source.datum_params[0] === dest.datum_params[0] && source.datum_params[1] === dest.datum_params[1] && source.datum_params[2] === dest.datum_params[2] && source.datum_params[3] === dest.datum_params[3] && source.datum_params[4] === dest.datum_params[4] && source.datum_params[5] === dest.datum_params[5] && source.datum_params[6] === dest.datum_params[6]);
-	  } else {
-	    return true; // datums are equal
-	  }
-	}; // cs_compare_datums()
-
-	/*
-	 * The function Convert_Geodetic_To_Geocentric converts geodetic coordinates
-	 * (latitude, longitude, and height) to geocentric coordinates (X, Y, Z),
-	 * according to the current ellipsoid parameters.
-	 *
-	 *    Latitude  : Geodetic latitude in radians                     (input)
-	 *    Longitude : Geodetic longitude in radians                    (input)
-	 *    Height    : Geodetic height, in meters                       (input)
-	 *    X         : Calculated Geocentric X coordinate, in meters    (output)
-	 *    Y         : Calculated Geocentric Y coordinate, in meters    (output)
-	 *    Z         : Calculated Geocentric Z coordinate, in meters    (output)
-	 *
-	 */
-	exports.geodeticToGeocentric = function(p, es, a) {
-	  var Longitude = p.x;
-	  var Latitude = p.y;
-	  var Height = p.z ? p.z : 0; //Z value not always supplied
-
-	  var Rn; /*  Earth radius at location  */
-	  var Sin_Lat; /*  Math.sin(Latitude)  */
-	  var Sin2_Lat; /*  Square of Math.sin(Latitude)  */
-	  var Cos_Lat; /*  Math.cos(Latitude)  */
-
-	  /*
-	   ** Don't blow up if Latitude is just a little out of the value
-	   ** range as it may just be a rounding issue.  Also removed longitude
-	   ** test, it should be wrapped by Math.cos() and Math.sin().  NFW for PROJ.4, Sep/2001.
-	   */
-	  if (Latitude < -HALF_PI && Latitude > -1.001 * HALF_PI) {
-	    Latitude = -HALF_PI;
-	  } else if (Latitude > HALF_PI && Latitude < 1.001 * HALF_PI) {
-	    Latitude = HALF_PI;
-	  } else if ((Latitude < -HALF_PI) || (Latitude > HALF_PI)) {
-	    /* Latitude out of range */
-	    //..reportError('geocent:lat out of range:' + Latitude);
-	    return null;
-	  }
-
-	  if (Longitude > Math.PI) {
-	    Longitude -= (2 * Math.PI);
-	  }
-	  Sin_Lat = Math.sin(Latitude);
-	  Cos_Lat = Math.cos(Latitude);
-	  Sin2_Lat = Sin_Lat * Sin_Lat;
-	  Rn = a / (Math.sqrt(1.0e0 - es * Sin2_Lat));
-	  return {
-	    x: (Rn + Height) * Cos_Lat * Math.cos(Longitude),
-	    y: (Rn + Height) * Cos_Lat * Math.sin(Longitude),
-	    z: ((Rn * (1 - es)) + Height) * Sin_Lat
-	  };
-	}; // cs_geodetic_to_geocentric()
-
-
-	exports.geocentricToGeodetic = function(p, es, a, b) {
-	  /* local defintions and variables */
-	  /* end-criterium of loop, accuracy of sin(Latitude) */
-	  var genau = 1e-12;
-	  var genau2 = (genau * genau);
-	  var maxiter = 30;
-
-	  var P; /* distance between semi-minor axis and location */
-	  var RR; /* distance between center and location */
-	  var CT; /* sin of geocentric latitude */
-	  var ST; /* cos of geocentric latitude */
-	  var RX;
-	  var RK;
-	  var RN; /* Earth radius at location */
-	  var CPHI0; /* cos of start or old geodetic latitude in iterations */
-	  var SPHI0; /* sin of start or old geodetic latitude in iterations */
-	  var CPHI; /* cos of searched geodetic latitude */
-	  var SPHI; /* sin of searched geodetic latitude */
-	  var SDPHI; /* end-criterium: addition-theorem of sin(Latitude(iter)-Latitude(iter-1)) */
-	  var iter; /* # of continous iteration, max. 30 is always enough (s.a.) */
-
-	  var X = p.x;
-	  var Y = p.y;
-	  var Z = p.z ? p.z : 0.0; //Z value not always supplied
-	  var Longitude;
-	  var Latitude;
-	  var Height;
-
-	  P = Math.sqrt(X * X + Y * Y);
-	  RR = Math.sqrt(X * X + Y * Y + Z * Z);
-
-	  /*      special cases for latitude and longitude */
-	  if (P / a < genau) {
-
-	    /*  special case, if P=0. (X=0., Y=0.) */
-	    Longitude = 0.0;
-
-	    /*  if (X,Y,Z)=(0.,0.,0.) then Height becomes semi-minor axis
-	     *  of ellipsoid (=center of mass), Latitude becomes PI/2 */
-	    if (RR / a < genau) {
-	      Latitude = HALF_PI;
-	      Height = -b;
-	      return {
-	        x: p.x,
-	        y: p.y,
-	        z: p.z
-	      };
-	    }
-	  } else {
-	    /*  ellipsoidal (geodetic) longitude
-	     *  interval: -PI < Longitude <= +PI */
-	    Longitude = Math.atan2(Y, X);
-	  }
-
-	  /* --------------------------------------------------------------
-	   * Following iterative algorithm was developped by
-	   * "Institut for Erdmessung", University of Hannover, July 1988.
-	   * Internet: www.ife.uni-hannover.de
-	   * Iterative computation of CPHI,SPHI and Height.
-	   * Iteration of CPHI and SPHI to 10**-12 radian resp.
-	   * 2*10**-7 arcsec.
-	   * --------------------------------------------------------------
-	   */
-	  CT = Z / RR;
-	  ST = P / RR;
-	  RX = 1.0 / Math.sqrt(1.0 - es * (2.0 - es) * ST * ST);
-	  CPHI0 = ST * (1.0 - es) * RX;
-	  SPHI0 = CT * RX;
-	  iter = 0;
-
-	  /* loop to find sin(Latitude) resp. Latitude
-	   * until |sin(Latitude(iter)-Latitude(iter-1))| < genau */
-	  do {
-	    iter++;
-	    RN = a / Math.sqrt(1.0 - es * SPHI0 * SPHI0);
-
-	    /*  ellipsoidal (geodetic) height */
-	    Height = P * CPHI0 + Z * SPHI0 - RN * (1.0 - es * SPHI0 * SPHI0);
-
-	    RK = es * RN / (RN + Height);
-	    RX = 1.0 / Math.sqrt(1.0 - RK * (2.0 - RK) * ST * ST);
-	    CPHI = ST * (1.0 - RK) * RX;
-	    SPHI = CT * RX;
-	    SDPHI = SPHI * CPHI0 - CPHI * SPHI0;
-	    CPHI0 = CPHI;
-	    SPHI0 = SPHI;
-	  }
-	  while (SDPHI * SDPHI > genau2 && iter < maxiter);
-
-	  /*      ellipsoidal (geodetic) latitude */
-	  Latitude = Math.atan(SPHI / Math.abs(CPHI));
-	  return {
-	    x: Longitude,
-	    y: Latitude,
-	    z: Height
-	  };
-	}; // cs_geocentric_to_geodetic()
-
-
-	/****************************************************************/
-	// pj_geocentic_to_wgs84( p )
-	//  p = point to transform in geocentric coordinates (x,y,z)
-
-
-	/** point object, nothing fancy, just allows values to be
-	    passed back and forth by reference rather than by value.
-	    Other point classes may be used as long as they have
-	    x and y properties, which will get modified in the transform method.
-	*/
-	exports.geocentricToWgs84 = function(p, datum_type, datum_params) {
-
-	  if (datum_type === PJD_3PARAM) {
-	    // if( x[io] === HUGE_VAL )
-	    //    continue;
-	    return {
-	      x: p.x + datum_params[0],
-	      y: p.y + datum_params[1],
-	      z: p.z + datum_params[2],
-	    };
-	  } else if (datum_type === PJD_7PARAM) {
-	    var Dx_BF = datum_params[0];
-	    var Dy_BF = datum_params[1];
-	    var Dz_BF = datum_params[2];
-	    var Rx_BF = datum_params[3];
-	    var Ry_BF = datum_params[4];
-	    var Rz_BF = datum_params[5];
-	    var M_BF = datum_params[6];
-	    // if( x[io] === HUGE_VAL )
-	    //    continue;
-	    return {
-	      x: M_BF * (p.x - Rz_BF * p.y + Ry_BF * p.z) + Dx_BF,
-	      y: M_BF * (Rz_BF * p.x + p.y - Rx_BF * p.z) + Dy_BF,
-	      z: M_BF * (-Ry_BF * p.x + Rx_BF * p.y + p.z) + Dz_BF
-	    };
-	  }
-	}; // cs_geocentric_to_wgs84
-
-	/****************************************************************/
-	// pj_geocentic_from_wgs84()
-	//  coordinate system definition,
-	//  point to transform in geocentric coordinates (x,y,z)
-	exports.geocentricFromWgs84 = function(p, datum_type, datum_params) {
-
-	  if (datum_type === PJD_3PARAM) {
-	    //if( x[io] === HUGE_VAL )
-	    //    continue;
-	    return {
-	      x: p.x - datum_params[0],
-	      y: p.y - datum_params[1],
-	      z: p.z - datum_params[2],
-	    };
-
-	  } else if (datum_type === PJD_7PARAM) {
-	    var Dx_BF = datum_params[0];
-	    var Dy_BF = datum_params[1];
-	    var Dz_BF = datum_params[2];
-	    var Rx_BF = datum_params[3];
-	    var Ry_BF = datum_params[4];
-	    var Rz_BF = datum_params[5];
-	    var M_BF = datum_params[6];
-	    var x_tmp = (p.x - Dx_BF) / M_BF;
-	    var y_tmp = (p.y - Dy_BF) / M_BF;
-	    var z_tmp = (p.z - Dz_BF) / M_BF;
-	    //if( x[io] === HUGE_VAL )
-	    //    continue;
-
-	    return {
-	      x: x_tmp + Rz_BF * y_tmp - Ry_BF * z_tmp,
-	      y: -Rz_BF * x_tmp + y_tmp + Rx_BF * z_tmp,
-	      z: Ry_BF * x_tmp - Rx_BF * y_tmp + z_tmp
-	    };
-	  } //cs_geocentric_from_wgs84()
-	};
-
-
-/***/ }),
-/* 38 */
-/***/ (function(module, exports) {
-
-	module.exports = function(crs, denorm, point) {
-	  var xin = point.x,
-	    yin = point.y,
-	    zin = point.z || 0.0;
-	  var v, t, i;
-	  var out = {};
-	  for (i = 0; i < 3; i++) {
-	    if (denorm && i === 2 && point.z === undefined) {
-	      continue;
-	    }
-	    if (i === 0) {
-	      v = xin;
-	      t = 'x';
-	    }
-	    else if (i === 1) {
-	      v = yin;
-	      t = 'y';
-	    }
-	    else {
-	      v = zin;
-	      t = 'z';
-	    }
-	    switch (crs.axis[i]) {
-	    case 'e':
-	      out[t] = v;
-	      break;
-	    case 'w':
-	      out[t] = -v;
-	      break;
-	    case 'n':
-	      out[t] = v;
-	      break;
-	    case 's':
-	      out[t] = -v;
-	      break;
-	    case 'u':
-	      if (point[t] !== undefined) {
-	        out.z = v;
-	      }
-	      break;
-	    case 'd':
-	      if (point[t] !== undefined) {
-	        out.z = -v;
-	      }
-	      break;
-	    default:
-	      //console.log("ERROR: unknow axis ("+crs.axis[i]+") - check definition of "+crs.projName);
-	      return null;
-	    }
-	  }
-	  return out;
-	};
-
-
-/***/ }),
-/* 39 */
-/***/ (function(module, exports) {
-
-	module.exports = function (array){
-	  var out = {
-	    x: array[0],
-	    y: array[1]
-	  };
-	  if (array.length>2) {
-	    out.z = array[2];
-	  }
-	  if (array.length>3) {
-	    out.m = array[3];
-	  }
-	  return out;
-	};
-
-/***/ }),
-/* 40 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var mgrs = __webpack_require__(41);
-
-	function Point(x, y, z) {
-	  if (!(this instanceof Point)) {
-	    return new Point(x, y, z);
-	  }
-	  if (Array.isArray(x)) {
-	    this.x = x[0];
-	    this.y = x[1];
-	    this.z = x[2] || 0.0;
-	  } else if(typeof x === 'object') {
-	    this.x = x.x;
-	    this.y = x.y;
-	    this.z = x.z || 0.0;
-	  } else if (typeof x === 'string' && typeof y === 'undefined') {
-	    var coords = x.split(',');
-	    this.x = parseFloat(coords[0], 10);
-	    this.y = parseFloat(coords[1], 10);
-	    this.z = parseFloat(coords[2], 10) || 0.0;
-	  } else {
-	    this.x = x;
-	    this.y = y;
-	    this.z = z || 0.0;
-	  }
-	  console.warn('proj4.Point will be removed in version 3, use proj4.toPoint');
-	}
-
-	Point.fromMGRS = function(mgrsStr) {
-	  return new Point(mgrs.toPoint(mgrsStr));
-	};
-	Point.prototype.toMGRS = function(accuracy) {
-	  return mgrs.forward([this.x, this.y], accuracy);
-	};
-	module.exports = Point;
-
-
-/***/ }),
-/* 41 */
-/***/ (function(module, exports) {
-
-	
-
-
-	/**
-	 * UTM zones are grouped, and assigned to one of a group of 6
-	 * sets.
-	 *
-	 * {int} @private
-	 */
-	var NUM_100K_SETS = 6;
-
-	/**
-	 * The column letters (for easting) of the lower left value, per
-	 * set.
-	 *
-	 * {string} @private
-	 */
-	var SET_ORIGIN_COLUMN_LETTERS = 'AJSAJS';
-
-	/**
-	 * The row letters (for northing) of the lower left value, per
-	 * set.
-	 *
-	 * {string} @private
-	 */
-	var SET_ORIGIN_ROW_LETTERS = 'AFAFAF';
-
-	var A = 65; // A
-	var I = 73; // I
-	var O = 79; // O
-	var V = 86; // V
-	var Z = 90; // Z
-
-	/**
-	 * Conversion of lat/lon to MGRS.
-	 *
-	 * @param {object} ll Object literal with lat and lon properties on a
-	 *     WGS84 ellipsoid.
-	 * @param {int} accuracy Accuracy in digits (5 for 1 m, 4 for 10 m, 3 for
-	 *      100 m, 2 for 1000 m or 1 for 10000 m). Optional, default is 5.
-	 * @return {string} the MGRS string for the given location and accuracy.
-	 */
-	exports.forward = function(ll, accuracy) {
-	  accuracy = accuracy || 5; // default accuracy 1m
-	  return encode(LLtoUTM({
-	    lat: ll[1],
-	    lon: ll[0]
-	  }), accuracy);
-	};
-
-	/**
-	 * Conversion of MGRS to lat/lon.
-	 *
-	 * @param {string} mgrs MGRS string.
-	 * @return {array} An array with left (longitude), bottom (latitude), right
-	 *     (longitude) and top (latitude) values in WGS84, representing the
-	 *     bounding box for the provided MGRS reference.
-	 */
-	exports.inverse = function(mgrs) {
-	  var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
-	  if (bbox.lat && bbox.lon) {
-	    return [bbox.lon, bbox.lat, bbox.lon, bbox.lat];
-	  }
-	  return [bbox.left, bbox.bottom, bbox.right, bbox.top];
-	};
-
-	exports.toPoint = function(mgrs) {
-	  var bbox = UTMtoLL(decode(mgrs.toUpperCase()));
-	  if (bbox.lat && bbox.lon) {
-	    return [bbox.lon, bbox.lat];
-	  }
-	  return [(bbox.left + bbox.right) / 2, (bbox.top + bbox.bottom) / 2];
-	};
-	/**
-	 * Conversion from degrees to radians.
-	 *
-	 * @private
-	 * @param {number} deg the angle in degrees.
-	 * @return {number} the angle in radians.
-	 */
-	function degToRad(deg) {
-	  return (deg * (Math.PI / 180.0));
-	}
-
-	/**
-	 * Conversion from radians to degrees.
-	 *
-	 * @private
-	 * @param {number} rad the angle in radians.
-	 * @return {number} the angle in degrees.
-	 */
-	function radToDeg(rad) {
-	  return (180.0 * (rad / Math.PI));
-	}
-
-	/**
-	 * Converts a set of Longitude and Latitude co-ordinates to UTM
-	 * using the WGS84 ellipsoid.
-	 *
-	 * @private
-	 * @param {object} ll Object literal with lat and lon properties
-	 *     representing the WGS84 coordinate to be converted.
-	 * @return {object} Object literal containing the UTM value with easting,
-	 *     northing, zoneNumber and zoneLetter properties, and an optional
-	 *     accuracy property in digits. Returns null if the conversion failed.
-	 */
-	function LLtoUTM(ll) {
-	  var Lat = ll.lat;
-	  var Long = ll.lon;
-	  var a = 6378137.0; //ellip.radius;
-	  var eccSquared = 0.00669438; //ellip.eccsq;
-	  var k0 = 0.9996;
-	  var LongOrigin;
-	  var eccPrimeSquared;
-	  var N, T, C, A, M;
-	  var LatRad = degToRad(Lat);
-	  var LongRad = degToRad(Long);
-	  var LongOriginRad;
-	  var ZoneNumber;
-	  // (int)
-	  ZoneNumber = Math.floor((Long + 180) / 6) + 1;
-
-	  //Make sure the longitude 180.00 is in Zone 60
-	  if (Long === 180) {
-	    ZoneNumber = 60;
-	  }
-
-	  // Special zone for Norway
-	  if (Lat >= 56.0 && Lat < 64.0 && Long >= 3.0 && Long < 12.0) {
-	    ZoneNumber = 32;
-	  }
-
-	  // Special zones for Svalbard
-	  if (Lat >= 72.0 && Lat < 84.0) {
-	    if (Long >= 0.0 && Long < 9.0) {
-	      ZoneNumber = 31;
-	    }
-	    else if (Long >= 9.0 && Long < 21.0) {
-	      ZoneNumber = 33;
-	    }
-	    else if (Long >= 21.0 && Long < 33.0) {
-	      ZoneNumber = 35;
-	    }
-	    else if (Long >= 33.0 && Long < 42.0) {
-	      ZoneNumber = 37;
-	    }
-	  }
-
-	  LongOrigin = (ZoneNumber - 1) * 6 - 180 + 3; //+3 puts origin
-	  // in middle of
-	  // zone
-	  LongOriginRad = degToRad(LongOrigin);
-
-	  eccPrimeSquared = (eccSquared) / (1 - eccSquared);
-
-	  N = a / Math.sqrt(1 - eccSquared * Math.sin(LatRad) * Math.sin(LatRad));
-	  T = Math.tan(LatRad) * Math.tan(LatRad);
-	  C = eccPrimeSquared * Math.cos(LatRad) * Math.cos(LatRad);
-	  A = Math.cos(LatRad) * (LongRad - LongOriginRad);
-
-	  M = a * ((1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256) * LatRad - (3 * eccSquared / 8 + 3 * eccSquared * eccSquared / 32 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(2 * LatRad) + (15 * eccSquared * eccSquared / 256 + 45 * eccSquared * eccSquared * eccSquared / 1024) * Math.sin(4 * LatRad) - (35 * eccSquared * eccSquared * eccSquared / 3072) * Math.sin(6 * LatRad));
-
-	  var UTMEasting = (k0 * N * (A + (1 - T + C) * A * A * A / 6.0 + (5 - 18 * T + T * T + 72 * C - 58 * eccPrimeSquared) * A * A * A * A * A / 120.0) + 500000.0);
-
-	  var UTMNorthing = (k0 * (M + N * Math.tan(LatRad) * (A * A / 2 + (5 - T + 9 * C + 4 * C * C) * A * A * A * A / 24.0 + (61 - 58 * T + T * T + 600 * C - 330 * eccPrimeSquared) * A * A * A * A * A * A / 720.0)));
-	  if (Lat < 0.0) {
-	    UTMNorthing += 10000000.0; //10000000 meter offset for
-	    // southern hemisphere
-	  }
-
-	  return {
-	    northing: Math.round(UTMNorthing),
-	    easting: Math.round(UTMEasting),
-	    zoneNumber: ZoneNumber,
-	    zoneLetter: getLetterDesignator(Lat)
-	  };
-	}
-
-	/**
-	 * Converts UTM coords to lat/long, using the WGS84 ellipsoid. This is a convenience
-	 * class where the Zone can be specified as a single string eg."60N" which
-	 * is then broken down into the ZoneNumber and ZoneLetter.
-	 *
-	 * @private
-	 * @param {object} utm An object literal with northing, easting, zoneNumber
-	 *     and zoneLetter properties. If an optional accuracy property is
-	 *     provided (in meters), a bounding box will be returned instead of
-	 *     latitude and longitude.
-	 * @return {object} An object literal containing either lat and lon values
-	 *     (if no accuracy was provided), or top, right, bottom and left values
-	 *     for the bounding box calculated according to the provided accuracy.
-	 *     Returns null if the conversion failed.
-	 */
-	function UTMtoLL(utm) {
-
-	  var UTMNorthing = utm.northing;
-	  var UTMEasting = utm.easting;
-	  var zoneLetter = utm.zoneLetter;
-	  var zoneNumber = utm.zoneNumber;
-	  // check the ZoneNummber is valid
-	  if (zoneNumber < 0 || zoneNumber > 60) {
-	    return null;
-	  }
-
-	  var k0 = 0.9996;
-	  var a = 6378137.0; //ellip.radius;
-	  var eccSquared = 0.00669438; //ellip.eccsq;
-	  var eccPrimeSquared;
-	  var e1 = (1 - Math.sqrt(1 - eccSquared)) / (1 + Math.sqrt(1 - eccSquared));
-	  var N1, T1, C1, R1, D, M;
-	  var LongOrigin;
-	  var mu, phi1Rad;
-
-	  // remove 500,000 meter offset for longitude
-	  var x = UTMEasting - 500000.0;
-	  var y = UTMNorthing;
-
-	  // We must know somehow if we are in the Northern or Southern
-	  // hemisphere, this is the only time we use the letter So even
-	  // if the Zone letter isn't exactly correct it should indicate
-	  // the hemisphere correctly
-	  if (zoneLetter < 'N') {
-	    y -= 10000000.0; // remove 10,000,000 meter offset used
-	    // for southern hemisphere
-	  }
-
-	  // There are 60 zones with zone 1 being at West -180 to -174
-	  LongOrigin = (zoneNumber - 1) * 6 - 180 + 3; // +3 puts origin
-	  // in middle of
-	  // zone
-
-	  eccPrimeSquared = (eccSquared) / (1 - eccSquared);
-
-	  M = y / k0;
-	  mu = M / (a * (1 - eccSquared / 4 - 3 * eccSquared * eccSquared / 64 - 5 * eccSquared * eccSquared * eccSquared / 256));
-
-	  phi1Rad = mu + (3 * e1 / 2 - 27 * e1 * e1 * e1 / 32) * Math.sin(2 * mu) + (21 * e1 * e1 / 16 - 55 * e1 * e1 * e1 * e1 / 32) * Math.sin(4 * mu) + (151 * e1 * e1 * e1 / 96) * Math.sin(6 * mu);
-	  // double phi1 = ProjMath.radToDeg(phi1Rad);
-
-	  N1 = a / Math.sqrt(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad));
-	  T1 = Math.tan(phi1Rad) * Math.tan(phi1Rad);
-	  C1 = eccPrimeSquared * Math.cos(phi1Rad) * Math.cos(phi1Rad);
-	  R1 = a * (1 - eccSquared) / Math.pow(1 - eccSquared * Math.sin(phi1Rad) * Math.sin(phi1Rad), 1.5);
-	  D = x / (N1 * k0);
-
-	  var lat = phi1Rad - (N1 * Math.tan(phi1Rad) / R1) * (D * D / 2 - (5 + 3 * T1 + 10 * C1 - 4 * C1 * C1 - 9 * eccPrimeSquared) * D * D * D * D / 24 + (61 + 90 * T1 + 298 * C1 + 45 * T1 * T1 - 252 * eccPrimeSquared - 3 * C1 * C1) * D * D * D * D * D * D / 720);
-	  lat = radToDeg(lat);
-
-	  var lon = (D - (1 + 2 * T1 + C1) * D * D * D / 6 + (5 - 2 * C1 + 28 * T1 - 3 * C1 * C1 + 8 * eccPrimeSquared + 24 * T1 * T1) * D * D * D * D * D / 120) / Math.cos(phi1Rad);
-	  lon = LongOrigin + radToDeg(lon);
-
-	  var result;
-	  if (utm.accuracy) {
-	    var topRight = UTMtoLL({
-	      northing: utm.northing + utm.accuracy,
-	      easting: utm.easting + utm.accuracy,
-	      zoneLetter: utm.zoneLetter,
-	      zoneNumber: utm.zoneNumber
-	    });
-	    result = {
-	      top: topRight.lat,
-	      right: topRight.lon,
-	      bottom: lat,
-	      left: lon
-	    };
-	  }
-	  else {
-	    result = {
-	      lat: lat,
-	      lon: lon
-	    };
-	  }
-	  return result;
-	}
-
-	/**
-	 * Calculates the MGRS letter designator for the given latitude.
-	 *
-	 * @private
-	 * @param {number} lat The latitude in WGS84 to get the letter designator
-	 *     for.
-	 * @return {char} The letter designator.
-	 */
-	function getLetterDesignator(lat) {
-	  //This is here as an error flag to show that the Latitude is
-	  //outside MGRS limits
-	  var LetterDesignator = 'Z';
-
-	  if ((84 >= lat) && (lat >= 72)) {
-	    LetterDesignator = 'X';
-	  }
-	  else if ((72 > lat) && (lat >= 64)) {
-	    LetterDesignator = 'W';
-	  }
-	  else if ((64 > lat) && (lat >= 56)) {
-	    LetterDesignator = 'V';
-	  }
-	  else if ((56 > lat) && (lat >= 48)) {
-	    LetterDesignator = 'U';
-	  }
-	  else if ((48 > lat) && (lat >= 40)) {
-	    LetterDesignator = 'T';
-	  }
-	  else if ((40 > lat) && (lat >= 32)) {
-	    LetterDesignator = 'S';
-	  }
-	  else if ((32 > lat) && (lat >= 24)) {
-	    LetterDesignator = 'R';
-	  }
-	  else if ((24 > lat) && (lat >= 16)) {
-	    LetterDesignator = 'Q';
-	  }
-	  else if ((16 > lat) && (lat >= 8)) {
-	    LetterDesignator = 'P';
-	  }
-	  else if ((8 > lat) && (lat >= 0)) {
-	    LetterDesignator = 'N';
-	  }
-	  else if ((0 > lat) && (lat >= -8)) {
-	    LetterDesignator = 'M';
-	  }
-	  else if ((-8 > lat) && (lat >= -16)) {
-	    LetterDesignator = 'L';
-	  }
-	  else if ((-16 > lat) && (lat >= -24)) {
-	    LetterDesignator = 'K';
-	  }
-	  else if ((-24 > lat) && (lat >= -32)) {
-	    LetterDesignator = 'J';
-	  }
-	  else if ((-32 > lat) && (lat >= -40)) {
-	    LetterDesignator = 'H';
-	  }
-	  else if ((-40 > lat) && (lat >= -48)) {
-	    LetterDesignator = 'G';
-	  }
-	  else if ((-48 > lat) && (lat >= -56)) {
-	    LetterDesignator = 'F';
-	  }
-	  else if ((-56 > lat) && (lat >= -64)) {
-	    LetterDesignator = 'E';
-	  }
-	  else if ((-64 > lat) && (lat >= -72)) {
-	    LetterDesignator = 'D';
-	  }
-	  else if ((-72 > lat) && (lat >= -80)) {
-	    LetterDesignator = 'C';
-	  }
-	  return LetterDesignator;
-	}
-
-	/**
-	 * Encodes a UTM location as MGRS string.
-	 *
-	 * @private
-	 * @param {object} utm An object literal with easting, northing,
-	 *     zoneLetter, zoneNumber
-	 * @param {number} accuracy Accuracy in digits (1-5).
-	 * @return {string} MGRS string for the given UTM location.
-	 */
-	function encode(utm, accuracy) {
-	  // prepend with leading zeroes
-	  var seasting = "00000" + utm.easting,
-	    snorthing = "00000" + utm.northing;
-
-	  return utm.zoneNumber + utm.zoneLetter + get100kID(utm.easting, utm.northing, utm.zoneNumber) + seasting.substr(seasting.length - 5, accuracy) + snorthing.substr(snorthing.length - 5, accuracy);
-	}
-
-	/**
-	 * Get the two letter 100k designator for a given UTM easting,
-	 * northing and zone number value.
-	 *
-	 * @private
-	 * @param {number} easting
-	 * @param {number} northing
-	 * @param {number} zoneNumber
-	 * @return the two letter 100k designator for the given UTM location.
-	 */
-	function get100kID(easting, northing, zoneNumber) {
-	  var setParm = get100kSetForZone(zoneNumber);
-	  var setColumn = Math.floor(easting / 100000);
-	  var setRow = Math.floor(northing / 100000) % 20;
-	  return getLetter100kID(setColumn, setRow, setParm);
-	}
-
-	/**
-	 * Given a UTM zone number, figure out the MGRS 100K set it is in.
-	 *
-	 * @private
-	 * @param {number} i An UTM zone number.
-	 * @return {number} the 100k set the UTM zone is in.
-	 */
-	function get100kSetForZone(i) {
-	  var setParm = i % NUM_100K_SETS;
-	  if (setParm === 0) {
-	    setParm = NUM_100K_SETS;
-	  }
-
-	  return setParm;
-	}
-
-	/**
-	 * Get the two-letter MGRS 100k designator given information
-	 * translated from the UTM northing, easting and zone number.
-	 *
-	 * @private
-	 * @param {number} column the column index as it relates to the MGRS
-	 *        100k set spreadsheet, created from the UTM easting.
-	 *        Values are 1-8.
-	 * @param {number} row the row index as it relates to the MGRS 100k set
-	 *        spreadsheet, created from the UTM northing value. Values
-	 *        are from 0-19.
-	 * @param {number} parm the set block, as it relates to the MGRS 100k set
-	 *        spreadsheet, created from the UTM zone. Values are from
-	 *        1-60.
-	 * @return two letter MGRS 100k code.
-	 */
-	function getLetter100kID(column, row, parm) {
-	  // colOrigin and rowOrigin are the letters at the origin of the set
-	  var index = parm - 1;
-	  var colOrigin = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(index);
-	  var rowOrigin = SET_ORIGIN_ROW_LETTERS.charCodeAt(index);
-
-	  // colInt and rowInt are the letters to build to return
-	  var colInt = colOrigin + column - 1;
-	  var rowInt = rowOrigin + row;
-	  var rollover = false;
-
-	  if (colInt > Z) {
-	    colInt = colInt - Z + A - 1;
-	    rollover = true;
-	  }
-
-	  if (colInt === I || (colOrigin < I && colInt > I) || ((colInt > I || colOrigin < I) && rollover)) {
-	    colInt++;
-	  }
-
-	  if (colInt === O || (colOrigin < O && colInt > O) || ((colInt > O || colOrigin < O) && rollover)) {
-	    colInt++;
-
-	    if (colInt === I) {
-	      colInt++;
-	    }
-	  }
-
-	  if (colInt > Z) {
-	    colInt = colInt - Z + A - 1;
-	  }
-
-	  if (rowInt > V) {
-	    rowInt = rowInt - V + A - 1;
-	    rollover = true;
-	  }
-	  else {
-	    rollover = false;
-	  }
-
-	  if (((rowInt === I) || ((rowOrigin < I) && (rowInt > I))) || (((rowInt > I) || (rowOrigin < I)) && rollover)) {
-	    rowInt++;
-	  }
-
-	  if (((rowInt === O) || ((rowOrigin < O) && (rowInt > O))) || (((rowInt > O) || (rowOrigin < O)) && rollover)) {
-	    rowInt++;
-
-	    if (rowInt === I) {
-	      rowInt++;
-	    }
-	  }
-
-	  if (rowInt > V) {
-	    rowInt = rowInt - V + A - 1;
-	  }
-
-	  var twoLetter = String.fromCharCode(colInt) + String.fromCharCode(rowInt);
-	  return twoLetter;
-	}
-
-	/**
-	 * Decode the UTM parameters from a MGRS string.
-	 *
-	 * @private
-	 * @param {string} mgrsString an UPPERCASE coordinate string is expected.
-	 * @return {object} An object literal with easting, northing, zoneLetter,
-	 *     zoneNumber and accuracy (in meters) properties.
-	 */
-	function decode(mgrsString) {
-
-	  if (mgrsString && mgrsString.length === 0) {
-	    throw ("MGRSPoint coverting from nothing");
-	  }
-
-	  var length = mgrsString.length;
-
-	  var hunK = null;
-	  var sb = "";
-	  var testChar;
-	  var i = 0;
-
-	  // get Zone number
-	  while (!(/[A-Z]/).test(testChar = mgrsString.charAt(i))) {
-	    if (i >= 2) {
-	      throw ("MGRSPoint bad conversion from: " + mgrsString);
-	    }
-	    sb += testChar;
-	    i++;
-	  }
-
-	  var zoneNumber = parseInt(sb, 10);
-
-	  if (i === 0 || i + 3 > length) {
-	    // A good MGRS string has to be 4-5 digits long,
-	    // ##AAA/#AAA at least.
-	    throw ("MGRSPoint bad conversion from: " + mgrsString);
-	  }
-
-	  var zoneLetter = mgrsString.charAt(i++);
-
-	  // Should we check the zone letter here? Why not.
-	  if (zoneLetter <= 'A' || zoneLetter === 'B' || zoneLetter === 'Y' || zoneLetter >= 'Z' || zoneLetter === 'I' || zoneLetter === 'O') {
-	    throw ("MGRSPoint zone letter " + zoneLetter + " not handled: " + mgrsString);
-	  }
-
-	  hunK = mgrsString.substring(i, i += 2);
-
-	  var set = get100kSetForZone(zoneNumber);
-
-	  var east100k = getEastingFromChar(hunK.charAt(0), set);
-	  var north100k = getNorthingFromChar(hunK.charAt(1), set);
-
-	  // We have a bug where the northing may be 2000000 too low.
-	  // How
-	  // do we know when to roll over?
-
-	  while (north100k < getMinNorthing(zoneLetter)) {
-	    north100k += 2000000;
-	  }
-
-	  // calculate the char index for easting/northing separator
-	  var remainder = length - i;
-
-	  if (remainder % 2 !== 0) {
-	    throw ("MGRSPoint has to have an even number \nof digits after the zone letter and two 100km letters - front \nhalf for easting meters, second half for \nnorthing meters" + mgrsString);
-	  }
-
-	  var sep = remainder / 2;
-
-	  var sepEasting = 0.0;
-	  var sepNorthing = 0.0;
-	  var accuracyBonus, sepEastingString, sepNorthingString, easting, northing;
-	  if (sep > 0) {
-	    accuracyBonus = 100000.0 / Math.pow(10, sep);
-	    sepEastingString = mgrsString.substring(i, i + sep);
-	    sepEasting = parseFloat(sepEastingString) * accuracyBonus;
-	    sepNorthingString = mgrsString.substring(i + sep);
-	    sepNorthing = parseFloat(sepNorthingString) * accuracyBonus;
-	  }
-
-	  easting = sepEasting + east100k;
-	  northing = sepNorthing + north100k;
-
-	  return {
-	    easting: easting,
-	    northing: northing,
-	    zoneLetter: zoneLetter,
-	    zoneNumber: zoneNumber,
-	    accuracy: accuracyBonus
-	  };
-	}
-
-	/**
-	 * Given the first letter from a two-letter MGRS 100k zone, and given the
-	 * MGRS table set for the zone number, figure out the easting value that
-	 * should be added to the other, secondary easting value.
-	 *
-	 * @private
-	 * @param {char} e The first letter from a two-letter MGRS 100´k zone.
-	 * @param {number} set The MGRS table set for the zone number.
-	 * @return {number} The easting value for the given letter and set.
-	 */
-	function getEastingFromChar(e, set) {
-	  // colOrigin is the letter at the origin of the set for the
-	  // column
-	  var curCol = SET_ORIGIN_COLUMN_LETTERS.charCodeAt(set - 1);
-	  var eastingValue = 100000.0;
-	  var rewindMarker = false;
-
-	  while (curCol !== e.charCodeAt(0)) {
-	    curCol++;
-	    if (curCol === I) {
-	      curCol++;
-	    }
-	    if (curCol === O) {
-	      curCol++;
-	    }
-	    if (curCol > Z) {
-	      if (rewindMarker) {
-	        throw ("Bad character: " + e);
-	      }
-	      curCol = A;
-	      rewindMarker = true;
-	    }
-	    eastingValue += 100000.0;
-	  }
-
-	  return eastingValue;
-	}
-
-	/**
-	 * Given the second letter from a two-letter MGRS 100k zone, and given the
-	 * MGRS table set for the zone number, figure out the northing value that
-	 * should be added to the other, secondary northing value. You have to
-	 * remember that Northings are determined from the equator, and the vertical
-	 * cycle of letters mean a 2000000 additional northing meters. This happens
-	 * approx. every 18 degrees of latitude. This method does *NOT* count any
-	 * additional northings. You have to figure out how many 2000000 meters need
-	 * to be added for the zone letter of the MGRS coordinate.
-	 *
-	 * @private
-	 * @param {char} n Second letter of the MGRS 100k zone
-	 * @param {number} set The MGRS table set number, which is dependent on the
-	 *     UTM zone number.
-	 * @return {number} The northing value for the given letter and set.
-	 */
-	function getNorthingFromChar(n, set) {
-
-	  if (n > 'V') {
-	    throw ("MGRSPoint given invalid Northing " + n);
-	  }
-
-	  // rowOrigin is the letter at the origin of the set for the
-	  // column
-	  var curRow = SET_ORIGIN_ROW_LETTERS.charCodeAt(set - 1);
-	  var northingValue = 0.0;
-	  var rewindMarker = false;
-
-	  while (curRow !== n.charCodeAt(0)) {
-	    curRow++;
-	    if (curRow === I) {
-	      curRow++;
-	    }
-	    if (curRow === O) {
-	      curRow++;
-	    }
-	    // fixing a bug making whole application hang in this loop
-	    // when 'n' is a wrong character
-	    if (curRow > V) {
-	      if (rewindMarker) { // making sure that this loop ends
-	        throw ("Bad character: " + n);
-	      }
-	      curRow = A;
-	      rewindMarker = true;
-	    }
-	    northingValue += 100000.0;
-	  }
-
-	  return northingValue;
-	}
-
-	/**
-	 * The function getMinNorthing returns the minimum northing value of a MGRS
-	 * zone.
-	 *
-	 * Ported from Geotrans' c Lattitude_Band_Value structure table.
-	 *
-	 * @private
-	 * @param {char} zoneLetter The MGRS zone to get the min northing for.
-	 * @return {number}
-	 */
-	function getMinNorthing(zoneLetter) {
-	  var northing;
-	  switch (zoneLetter) {
-	  case 'C':
-	    northing = 1100000.0;
-	    break;
-	  case 'D':
-	    northing = 2000000.0;
-	    break;
-	  case 'E':
-	    northing = 2800000.0;
-	    break;
-	  case 'F':
-	    northing = 3700000.0;
-	    break;
-	  case 'G':
-	    northing = 4600000.0;
-	    break;
-	  case 'H':
-	    northing = 5500000.0;
-	    break;
-	  case 'J':
-	    northing = 6400000.0;
-	    break;
-	  case 'K':
-	    northing = 7300000.0;
-	    break;
-	  case 'L':
-	    northing = 8200000.0;
-	    break;
-	  case 'M':
-	    northing = 9100000.0;
-	    break;
-	  case 'N':
-	    northing = 0.0;
-	    break;
-	  case 'P':
-	    northing = 800000.0;
-	    break;
-	  case 'Q':
-	    northing = 1700000.0;
-	    break;
-	  case 'R':
-	    northing = 2600000.0;
-	    break;
-	  case 'S':
-	    northing = 3500000.0;
-	    break;
-	  case 'T':
-	    northing = 4400000.0;
-	    break;
-	  case 'U':
-	    northing = 5300000.0;
-	    break;
-	  case 'V':
-	    northing = 6200000.0;
-	    break;
-	  case 'W':
-	    northing = 7000000.0;
-	    break;
-	  case 'X':
-	    northing = 7900000.0;
-	    break;
-	  default:
-	    northing = -1.0;
-	  }
-	  if (northing >= 0.0) {
-	    return northing;
-	  }
-	  else {
-	    throw ("Invalid zone letter: " + zoneLetter);
-	  }
-
-	}
-
-
-/***/ }),
-/* 42 */
-/***/ (function(module, exports) {
-
-	module.exports = '2.3.16';
-
-
-/***/ }),
-/* 43 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var projs = [
-	  __webpack_require__(44),
-	  __webpack_require__(48),
-	  __webpack_require__(50),
-	  __webpack_require__(53),
-	  __webpack_require__(54),
-	  __webpack_require__(55),
-	  __webpack_require__(56),
-	  __webpack_require__(57),
-	  __webpack_require__(58),
-	  __webpack_require__(67),
-	  __webpack_require__(69),
-	  __webpack_require__(71),
-	  __webpack_require__(72),
-	  __webpack_require__(74),
-	  __webpack_require__(75),
-	  __webpack_require__(76),
-	  __webpack_require__(77),
-	  __webpack_require__(78),
-	  __webpack_require__(79),
-	  __webpack_require__(80),
-	  __webpack_require__(81),
-	  __webpack_require__(82)
-	];
-	module.exports = function(proj4){
-	  projs.forEach(function(proj){
-	    proj4.Proj.projections.add(proj);
-	  });
-	};
-
-/***/ }),
-/* 44 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	// Heavily based on this tmerc projection implementation
-	// https://github.com/mbloch/mapshaper-proj/blob/master/src/projections/tmerc.js
-
-	var pj_enfn = __webpack_require__(45);
-	var pj_mlfn = __webpack_require__(46);
-	var pj_inv_mlfn = __webpack_require__(47);
-	var adjust_lon = __webpack_require__(26);
-	var HALF_PI = Math.PI / 2;
-	var EPSLN = 1.0e-10;
-	var sign = __webpack_require__(27);
-
-	exports.init = function() {
-	  this.x0 = this.x0 !== undefined ? this.x0 : 0;
-	  this.y0 = this.y0 !== undefined ? this.y0 : 0;
-	  this.long0 = this.long0 !== undefined ? this.long0 : 0;
-	  this.lat0 = this.lat0 !== undefined ? this.lat0 : 0;
-
-	  if (this.es) {
-	    this.en = pj_enfn(this.es);
-	    this.ml0 = pj_mlfn(this.lat0, Math.sin(this.lat0), Math.cos(this.lat0), this.en);
-	  }
-	};
-
-	/**
-	    Transverse Mercator Forward  - long/lat to x/y
-	    long/lat in radians
-	  */
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  var delta_lon = adjust_lon(lon - this.long0);
-	  var con;
-	  var x, y;
-	  var sin_phi = Math.sin(lat);
-	  var cos_phi = Math.cos(lat);
-
-	  if (!this.es) {
-	    var b = cos_phi * Math.sin(delta_lon);
-
-	    if ((Math.abs(Math.abs(b) - 1)) < EPSLN) {
-	      return (93);
-	    }
-	    else {
-	      x = 0.5 * this.a * this.k0 * Math.log((1 + b) / (1 - b)) + this.x0;
-	      y = cos_phi * Math.cos(delta_lon) / Math.sqrt(1 - Math.pow(b, 2));
-	      b = Math.abs(y);
-
-	      if (b >= 1) {
-	        if ((b - 1) > EPSLN) {
-	          return (93);
-	        }
-	        else {
-	          y = 0;
-	        }
-	      }
-	      else {
-	        y = Math.acos(y);
-	      }
-
-	      if (lat < 0) {
-	        y = -y;
-	      }
-
-	      y = this.a * this.k0 * (y - this.lat0) + this.y0;
-	    }
-	  }
-	  else {
-	    var al = cos_phi * delta_lon;
-	    var als = Math.pow(al, 2);
-	    var c = this.ep2 * Math.pow(cos_phi, 2);
-	    var cs = Math.pow(c, 2);
-	    var tq = Math.abs(cos_phi) > EPSLN ? Math.tan(lat) : 0;
-	    var t = Math.pow(tq, 2);
-	    var ts = Math.pow(t, 2);
-	    con = 1 - this.es * Math.pow(sin_phi, 2);
-	    al = al / Math.sqrt(con);
-	    var ml = pj_mlfn(lat, sin_phi, cos_phi, this.en);
-
-	    x = this.a * (this.k0 * al * (1 +
-	      als / 6 * (1 - t + c +
-	      als / 20 * (5 - 18 * t + ts + 14 * c - 58 * t * c +
-	      als / 42 * (61 + 179 * ts - ts * t - 479 * t))))) +
-	      this.x0;
-
-	    y = this.a * (this.k0 * (ml - this.ml0 +
-	      sin_phi * delta_lon * al / 2 * (1 +
-	      als / 12 * (5 - t + 9 * c + 4 * cs +
-	      als / 30 * (61 + ts - 58 * t + 270 * c - 330 * t * c +
-	      als / 56 * (1385 + 543 * ts - ts * t - 3111 * t)))))) +
-	      this.y0;
-	  }
-
-	  p.x = x;
-	  p.y = y;
-
-	  return p;
-	};
-
-	/**
-	    Transverse Mercator Inverse  -  x/y to long/lat
-	  */
-	exports.inverse = function(p) {
-	  var con, phi;
-	  var lat, lon;
-	  var x = (p.x - this.x0) * (1 / this.a);
-	  var y = (p.y - this.y0) * (1 / this.a);
-
-	  if (!this.es) {
-	    var f = Math.exp(x / this.k0);
-	    var g = 0.5 * (f - 1 / f);
-	    var temp = this.lat0 + y / this.k0;
-	    var h = Math.cos(temp);
-	    con = Math.sqrt((1 - Math.pow(h, 2)) / (1 + Math.pow(g, 2)));
-	    lat = Math.asin(con);
-
-	    if (y < 0) {
-	      lat = -lat;
-	    }
-
-	    if ((g === 0) && (h === 0)) {
-	      lon = 0;
-	    }
-	    else {
-	      lon = adjust_lon(Math.atan2(g, h) + this.long0);
-	    }
-	  }
-	  else { // ellipsoidal form
-	    con = this.ml0 + y / this.k0;
-	    phi = pj_inv_mlfn(con, this.es, this.en);
-
-	    if (Math.abs(phi) < HALF_PI) {
-	      var sin_phi = Math.sin(phi);
-	      var cos_phi = Math.cos(phi);
-	      var tan_phi = Math.abs(cos_phi) > EPSLN ? Math.tan(phi) : 0;
-	      var c = this.ep2 * Math.pow(cos_phi, 2);
-	      var cs = Math.pow(c, 2);
-	      var t = Math.pow(tan_phi, 2);
-	      var ts = Math.pow(t, 2);
-	      con = 1 - this.es * Math.pow(sin_phi, 2);
-	      var d = x * Math.sqrt(con) / this.k0;
-	      var ds = Math.pow(d, 2);
-	      con = con * tan_phi;
-
-	      lat = phi - (con * ds / (1 - this.es)) * 0.5 * (1 -
-	        ds / 12 * (5 + 3 * t - 9 * c * t + c - 4 * cs -
-	        ds / 30 * (61 + 90 * t - 252 * c * t + 45 * ts + 46 * c -
-	        ds / 56 * (1385 + 3633 * t + 4095 * ts + 1574 * ts * t))));
-
-	      lon = adjust_lon(this.long0 + (d * (1 -
-	        ds / 6 * (1 + 2 * t + c -
-	        ds / 20 * (5 + 28 * t + 24 * ts + 8 * c * t + 6 * c -
-	        ds / 42 * (61 + 662 * t + 1320 * ts + 720 * ts * t)))) / cos_phi));
-	    }
-	    else {
-	      lat = HALF_PI * sign(y);
-	      lon = 0;
-	    }
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-
-	  return p;
-	};
-
-	exports.names = ["Transverse_Mercator", "Transverse Mercator", "tmerc"];
-
-
-/***/ }),
-/* 45 */
-/***/ (function(module, exports) {
-
-	var C00 = 1;
-	var C02 = 0.25;
-	var C04 = 0.046875;
-	var C06 = 0.01953125;
-	var C08 = 0.01068115234375;
-	var C22 = 0.75;
-	var C44 = 0.46875;
-	var C46 = 0.01302083333333333333;
-	var C48 = 0.00712076822916666666;
-	var C66 = 0.36458333333333333333;
-	var C68 = 0.00569661458333333333;
-	var C88 = 0.3076171875;
-
-	module.exports = function(es) {
-	  var en = [];
-	  en[0] = C00 - es * (C02 + es * (C04 + es * (C06 + es * C08)));
-	  en[1] = es * (C22 - es * (C04 + es * (C06 + es * C08)));
-	  var t = es * es;
-	  en[2] = t * (C44 - es * (C46 + es * C48));
-	  t *= es;
-	  en[3] = t * (C66 - es * C68);
-	  en[4] = t * es * C88;
-	  return en;
-	};
-
-/***/ }),
-/* 46 */
-/***/ (function(module, exports) {
-
-	module.exports = function(phi, sphi, cphi, en) {
-	  cphi *= sphi;
-	  sphi *= sphi;
-	  return (en[0] * phi - cphi * (en[1] + sphi * (en[2] + sphi * (en[3] + sphi * en[4]))));
-	};
-
-/***/ }),
-/* 47 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var pj_mlfn = __webpack_require__(46);
-	var EPSLN = 1.0e-10;
-	var MAX_ITER = 20;
-	module.exports = function(arg, es, en) {
-	  var k = 1 / (1 - es);
-	  var phi = arg;
-	  for (var i = MAX_ITER; i; --i) { /* rarely goes over 2 iterations */
-	    var s = Math.sin(phi);
-	    var t = 1 - es * s * s;
-	    //t = this.pj_mlfn(phi, s, Math.cos(phi), en) - arg;
-	    //phi -= t * (t * Math.sqrt(t)) * k;
-	    t = (pj_mlfn(phi, s, Math.cos(phi), en) - arg) * (t * Math.sqrt(t)) * k;
-	    phi -= t;
-	    if (Math.abs(t) < EPSLN) {
-	      return phi;
-	    }
-	  }
-	  //..reportError("cass:pj_inv_mlfn: Convergence error");
-	  return phi;
-	};
-
-/***/ }),
-/* 48 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_zone = __webpack_require__(49);
-	var tmerc = __webpack_require__(44);
-
-	exports.dependsOn = 'tmerc';
-
-	exports.init = function() {
-	  var zone = adjust_zone(this.zone, this.long0);
-	  if (!zone) {
-	    return;
-	  }
-
-	  this.lat0 = 0;
-	  this.long0 = (zone + 0.5) * Math.PI / 30 - Math.PI;
-	  this.x0 = 500000;
-	  this.y0 = this.utmSouth ? 10000000 : 0;
-	  this.k0 = 0.9996;
-
-	  tmerc.init.apply(this);
-	  this.forward = tmerc.forward;
-	  this.inverse = tmerc.inverse;
-	};
-
-	exports.names = ["Universal Transverse Mercator System", "utm"];
-
-
-/***/ }),
-/* 49 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-
-	module.exports = function(zone, lon) {
-	  if (!zone) {
-	    zone = Math.floor((adjust_lon(lon) + Math.PI) * 30 / Math.PI);
-
-	    if (zone < 0) {
-	      return 0;
-	    }
-	    else if (zone >= 60) {
-	      return 59;
-	    }
-	  }
-	  else {
-	    if (zone > 0 && zone <= 60) {
-	      return zone - 1;
-	    }
-	  }
-	};
-
-
-/***/ }),
-/* 50 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var gauss = __webpack_require__(51);
-	var adjust_lon = __webpack_require__(26);
-	exports.init = function() {
-	  gauss.init.apply(this);
-	  if (!this.rc) {
-	    return;
-	  }
-	  this.sinc0 = Math.sin(this.phic0);
-	  this.cosc0 = Math.cos(this.phic0);
-	  this.R2 = 2 * this.rc;
-	  if (!this.title) {
-	    this.title = "Oblique Stereographic Alternative";
-	  }
-	};
-
-	exports.forward = function(p) {
-	  var sinc, cosc, cosl, k;
-	  p.x = adjust_lon(p.x - this.long0);
-	  gauss.forward.apply(this, [p]);
-	  sinc = Math.sin(p.y);
-	  cosc = Math.cos(p.y);
-	  cosl = Math.cos(p.x);
-	  k = this.k0 * this.R2 / (1 + this.sinc0 * sinc + this.cosc0 * cosc * cosl);
-	  p.x = k * cosc * Math.sin(p.x);
-	  p.y = k * (this.cosc0 * sinc - this.sinc0 * cosc * cosl);
-	  p.x = this.a * p.x + this.x0;
-	  p.y = this.a * p.y + this.y0;
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var sinc, cosc, lon, lat, rho;
-	  p.x = (p.x - this.x0) / this.a;
-	  p.y = (p.y - this.y0) / this.a;
-
-	  p.x /= this.k0;
-	  p.y /= this.k0;
-	  if ((rho = Math.sqrt(p.x * p.x + p.y * p.y))) {
-	    var c = 2 * Math.atan2(rho, this.R2);
-	    sinc = Math.sin(c);
-	    cosc = Math.cos(c);
-	    lat = Math.asin(cosc * this.sinc0 + p.y * sinc * this.cosc0 / rho);
-	    lon = Math.atan2(p.x * sinc, rho * this.cosc0 * cosc - p.y * this.sinc0 * sinc);
-	  }
-	  else {
-	    lat = this.phic0;
-	    lon = 0;
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-	  gauss.inverse.apply(this, [p]);
-	  p.x = adjust_lon(p.x + this.long0);
-	  return p;
-	};
-
-	exports.names = ["Stereographic_North_Pole", "Oblique_Stereographic", "Polar_Stereographic", "sterea","Oblique Stereographic Alternative"];
-
-
-/***/ }),
-/* 51 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var FORTPI = Math.PI/4;
-	var srat = __webpack_require__(52);
-	var HALF_PI = Math.PI/2;
-	var MAX_ITER = 20;
-	exports.init = function() {
-	  var sphi = Math.sin(this.lat0);
-	  var cphi = Math.cos(this.lat0);
-	  cphi *= cphi;
-	  this.rc = Math.sqrt(1 - this.es) / (1 - this.es * sphi * sphi);
-	  this.C = Math.sqrt(1 + this.es * cphi * cphi / (1 - this.es));
-	  this.phic0 = Math.asin(sphi / this.C);
-	  this.ratexp = 0.5 * this.C * this.e;
-	  this.K = Math.tan(0.5 * this.phic0 + FORTPI) / (Math.pow(Math.tan(0.5 * this.lat0 + FORTPI), this.C) * srat(this.e * sphi, this.ratexp));
-	};
-
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  p.y = 2 * Math.atan(this.K * Math.pow(Math.tan(0.5 * lat + FORTPI), this.C) * srat(this.e * Math.sin(lat), this.ratexp)) - HALF_PI;
-	  p.x = this.C * lon;
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var DEL_TOL = 1e-14;
-	  var lon = p.x / this.C;
-	  var lat = p.y;
-	  var num = Math.pow(Math.tan(0.5 * lat + FORTPI) / this.K, 1 / this.C);
-	  for (var i = MAX_ITER; i > 0; --i) {
-	    lat = 2 * Math.atan(num * srat(this.e * Math.sin(p.y), - 0.5 * this.e)) - HALF_PI;
-	    if (Math.abs(lat - p.y) < DEL_TOL) {
-	      break;
-	    }
-	    p.y = lat;
-	  }
-	  /* convergence failed */
-	  if (!i) {
-	    return null;
-	  }
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["gauss"];
-
-
-/***/ }),
-/* 52 */
-/***/ (function(module, exports) {
-
-	module.exports = function(esinp, exp) {
-	  return (Math.pow((1 - esinp) / (1 + esinp), exp));
-	};
-
-/***/ }),
-/* 53 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	var sign = __webpack_require__(27);
-	var msfnz = __webpack_require__(25);
-	var tsfnz = __webpack_require__(28);
-	var phi2z = __webpack_require__(29);
-	var adjust_lon = __webpack_require__(26);
-	exports.ssfn_ = function(phit, sinphi, eccen) {
-	  sinphi *= eccen;
-	  return (Math.tan(0.5 * (HALF_PI + phit)) * Math.pow((1 - sinphi) / (1 + sinphi), 0.5 * eccen));
-	};
-
-	exports.init = function() {
-	  this.coslat0 = Math.cos(this.lat0);
-	  this.sinlat0 = Math.sin(this.lat0);
-	  if (this.sphere) {
-	    if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
-	      this.k0 = 0.5 * (1 + sign(this.lat0) * Math.sin(this.lat_ts));
-	    }
-	  }
-	  else {
-	    if (Math.abs(this.coslat0) <= EPSLN) {
-	      if (this.lat0 > 0) {
-	        //North pole
-	        //trace('stere:north pole');
-	        this.con = 1;
-	      }
-	      else {
-	        //South pole
-	        //trace('stere:south pole');
-	        this.con = -1;
-	      }
-	    }
-	    this.cons = Math.sqrt(Math.pow(1 + this.e, 1 + this.e) * Math.pow(1 - this.e, 1 - this.e));
-	    if (this.k0 === 1 && !isNaN(this.lat_ts) && Math.abs(this.coslat0) <= EPSLN) {
-	      this.k0 = 0.5 * this.cons * msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts)) / tsfnz(this.e, this.con * this.lat_ts, this.con * Math.sin(this.lat_ts));
-	    }
-	    this.ms1 = msfnz(this.e, this.sinlat0, this.coslat0);
-	    this.X0 = 2 * Math.atan(this.ssfn_(this.lat0, this.sinlat0, this.e)) - HALF_PI;
-	    this.cosX0 = Math.cos(this.X0);
-	    this.sinX0 = Math.sin(this.X0);
-	  }
-	};
-
-	// Stereographic forward equations--mapping lat,long to x,y
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var sinlat = Math.sin(lat);
-	  var coslat = Math.cos(lat);
-	  var A, X, sinX, cosX, ts, rh;
-	  var dlon = adjust_lon(lon - this.long0);
-
-	  if (Math.abs(Math.abs(lon - this.long0) - Math.PI) <= EPSLN && Math.abs(lat + this.lat0) <= EPSLN) {
-	    //case of the origine point
-	    //trace('stere:this is the origin point');
-	    p.x = NaN;
-	    p.y = NaN;
-	    return p;
-	  }
-	  if (this.sphere) {
-	    //trace('stere:sphere case');
-	    A = 2 * this.k0 / (1 + this.sinlat0 * sinlat + this.coslat0 * coslat * Math.cos(dlon));
-	    p.x = this.a * A * coslat * Math.sin(dlon) + this.x0;
-	    p.y = this.a * A * (this.coslat0 * sinlat - this.sinlat0 * coslat * Math.cos(dlon)) + this.y0;
-	    return p;
-	  }
-	  else {
-	    X = 2 * Math.atan(this.ssfn_(lat, sinlat, this.e)) - HALF_PI;
-	    cosX = Math.cos(X);
-	    sinX = Math.sin(X);
-	    if (Math.abs(this.coslat0) <= EPSLN) {
-	      ts = tsfnz(this.e, lat * this.con, this.con * sinlat);
-	      rh = 2 * this.a * this.k0 * ts / this.cons;
-	      p.x = this.x0 + rh * Math.sin(lon - this.long0);
-	      p.y = this.y0 - this.con * rh * Math.cos(lon - this.long0);
-	      //trace(p.toString());
-	      return p;
-	    }
-	    else if (Math.abs(this.sinlat0) < EPSLN) {
-	      //Eq
-	      //trace('stere:equateur');
-	      A = 2 * this.a * this.k0 / (1 + cosX * Math.cos(dlon));
-	      p.y = A * sinX;
-	    }
-	    else {
-	      //other case
-	      //trace('stere:normal case');
-	      A = 2 * this.a * this.k0 * this.ms1 / (this.cosX0 * (1 + this.sinX0 * sinX + this.cosX0 * cosX * Math.cos(dlon)));
-	      p.y = A * (this.cosX0 * sinX - this.sinX0 * cosX * Math.cos(dlon)) + this.y0;
-	    }
-	    p.x = A * cosX * Math.sin(dlon) + this.x0;
-	  }
-	  //trace(p.toString());
-	  return p;
-	};
-
-
-	//* Stereographic inverse equations--mapping x,y to lat/long
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  var lon, lat, ts, ce, Chi;
-	  var rh = Math.sqrt(p.x * p.x + p.y * p.y);
-	  if (this.sphere) {
-	    var c = 2 * Math.atan(rh / (0.5 * this.a * this.k0));
-	    lon = this.long0;
-	    lat = this.lat0;
-	    if (rh <= EPSLN) {
-	      p.x = lon;
-	      p.y = lat;
-	      return p;
-	    }
-	    lat = Math.asin(Math.cos(c) * this.sinlat0 + p.y * Math.sin(c) * this.coslat0 / rh);
-	    if (Math.abs(this.coslat0) < EPSLN) {
-	      if (this.lat0 > 0) {
-	        lon = adjust_lon(this.long0 + Math.atan2(p.x, - 1 * p.y));
-	      }
-	      else {
-	        lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
-	      }
-	    }
-	    else {
-	      lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(c), rh * this.coslat0 * Math.cos(c) - p.y * this.sinlat0 * Math.sin(c)));
-	    }
-	    p.x = lon;
-	    p.y = lat;
-	    return p;
-	  }
-	  else {
-	    if (Math.abs(this.coslat0) <= EPSLN) {
-	      if (rh <= EPSLN) {
-	        lat = this.lat0;
-	        lon = this.long0;
-	        p.x = lon;
-	        p.y = lat;
-	        //trace(p.toString());
-	        return p;
-	      }
-	      p.x *= this.con;
-	      p.y *= this.con;
-	      ts = rh * this.cons / (2 * this.a * this.k0);
-	      lat = this.con * phi2z(this.e, ts);
-	      lon = this.con * adjust_lon(this.con * this.long0 + Math.atan2(p.x, - 1 * p.y));
-	    }
-	    else {
-	      ce = 2 * Math.atan(rh * this.cosX0 / (2 * this.a * this.k0 * this.ms1));
-	      lon = this.long0;
-	      if (rh <= EPSLN) {
-	        Chi = this.X0;
-	      }
-	      else {
-	        Chi = Math.asin(Math.cos(ce) * this.sinX0 + p.y * Math.sin(ce) * this.cosX0 / rh);
-	        lon = adjust_lon(this.long0 + Math.atan2(p.x * Math.sin(ce), rh * this.cosX0 * Math.cos(ce) - p.y * this.sinX0 * Math.sin(ce)));
-	      }
-	      lat = -1 * phi2z(this.e, Math.tan(0.5 * (HALF_PI + Chi)));
-	    }
-	  }
-	  p.x = lon;
-	  p.y = lat;
-
-	  //trace(p.toString());
-	  return p;
-
-	};
-	exports.names = ["stere", "Stereographic_South_Pole", "Polar Stereographic (variant B)"];
-
-
-/***/ }),
-/* 54 */
-/***/ (function(module, exports) {
-
-	/*
-	  references:
-	    Formules et constantes pour le Calcul pour la
-	    projection cylindrique conforme à axe oblique et pour la transformation entre
-	    des systèmes de référence.
-	    http://www.swisstopo.admin.ch/internet/swisstopo/fr/home/topics/survey/sys/refsys/switzerland.parsysrelated1.31216.downloadList.77004.DownloadFile.tmp/swissprojectionfr.pdf
-	  */
-	exports.init = function() {
-	  var phy0 = this.lat0;
-	  this.lambda0 = this.long0;
-	  var sinPhy0 = Math.sin(phy0);
-	  var semiMajorAxis = this.a;
-	  var invF = this.rf;
-	  var flattening = 1 / invF;
-	  var e2 = 2 * flattening - Math.pow(flattening, 2);
-	  var e = this.e = Math.sqrt(e2);
-	  this.R = this.k0 * semiMajorAxis * Math.sqrt(1 - e2) / (1 - e2 * Math.pow(sinPhy0, 2));
-	  this.alpha = Math.sqrt(1 + e2 / (1 - e2) * Math.pow(Math.cos(phy0), 4));
-	  this.b0 = Math.asin(sinPhy0 / this.alpha);
-	  var k1 = Math.log(Math.tan(Math.PI / 4 + this.b0 / 2));
-	  var k2 = Math.log(Math.tan(Math.PI / 4 + phy0 / 2));
-	  var k3 = Math.log((1 + e * sinPhy0) / (1 - e * sinPhy0));
-	  this.K = k1 - this.alpha * k2 + this.alpha * e / 2 * k3;
-	};
-
-
-	exports.forward = function(p) {
-	  var Sa1 = Math.log(Math.tan(Math.PI / 4 - p.y / 2));
-	  var Sa2 = this.e / 2 * Math.log((1 + this.e * Math.sin(p.y)) / (1 - this.e * Math.sin(p.y)));
-	  var S = -this.alpha * (Sa1 + Sa2) + this.K;
-
-	  // spheric latitude
-	  var b = 2 * (Math.atan(Math.exp(S)) - Math.PI / 4);
-
-	  // spheric longitude
-	  var I = this.alpha * (p.x - this.lambda0);
-
-	  // psoeudo equatorial rotation
-	  var rotI = Math.atan(Math.sin(I) / (Math.sin(this.b0) * Math.tan(b) + Math.cos(this.b0) * Math.cos(I)));
-
-	  var rotB = Math.asin(Math.cos(this.b0) * Math.sin(b) - Math.sin(this.b0) * Math.cos(b) * Math.cos(I));
-
-	  p.y = this.R / 2 * Math.log((1 + Math.sin(rotB)) / (1 - Math.sin(rotB))) + this.y0;
-	  p.x = this.R * rotI + this.x0;
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var Y = p.x - this.x0;
-	  var X = p.y - this.y0;
-
-	  var rotI = Y / this.R;
-	  var rotB = 2 * (Math.atan(Math.exp(X / this.R)) - Math.PI / 4);
-
-	  var b = Math.asin(Math.cos(this.b0) * Math.sin(rotB) + Math.sin(this.b0) * Math.cos(rotB) * Math.cos(rotI));
-	  var I = Math.atan(Math.sin(rotI) / (Math.cos(this.b0) * Math.cos(rotI) - Math.sin(this.b0) * Math.tan(rotB)));
-
-	  var lambda = this.lambda0 + I / this.alpha;
-
-	  var S = 0;
-	  var phy = b;
-	  var prevPhy = -1000;
-	  var iteration = 0;
-	  while (Math.abs(phy - prevPhy) > 0.0000001) {
-	    if (++iteration > 20) {
-	      //...reportError("omercFwdInfinity");
-	      return;
-	    }
-	    //S = Math.log(Math.tan(Math.PI / 4 + phy / 2));
-	    S = 1 / this.alpha * (Math.log(Math.tan(Math.PI / 4 + b / 2)) - this.K) + this.e * Math.log(Math.tan(Math.PI / 4 + Math.asin(this.e * Math.sin(phy)) / 2));
-	    prevPhy = phy;
-	    phy = 2 * Math.atan(Math.exp(S)) - Math.PI / 2;
-	  }
-
-	  p.x = lambda;
-	  p.y = phy;
-	  return p;
-	};
-
-	exports.names = ["somerc"];
-
-
-/***/ }),
-/* 55 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var tsfnz = __webpack_require__(28);
-	var adjust_lon = __webpack_require__(26);
-	var phi2z = __webpack_require__(29);
-	var HALF_PI = Math.PI/2;
-	var FORTPI = Math.PI/4;
-	var EPSLN = 1.0e-10;
-
-	/* Initialize the Oblique Mercator  projection
-	    ------------------------------------------*/
-	exports.init = function() {
-	  this.no_off = this.no_off || false;
-	  this.no_rot = this.no_rot || false;
-
-	  if (isNaN(this.k0)) {
-	    this.k0 = 1;
-	  }
-	  var sinlat = Math.sin(this.lat0);
-	  var coslat = Math.cos(this.lat0);
-	  var con = this.e * sinlat;
-
-	  this.bl = Math.sqrt(1 + this.es / (1 - this.es) * Math.pow(coslat, 4));
-	  this.al = this.a * this.bl * this.k0 * Math.sqrt(1 - this.es) / (1 - con * con);
-	  var t0 = tsfnz(this.e, this.lat0, sinlat);
-	  var dl = this.bl / coslat * Math.sqrt((1 - this.es) / (1 - con * con));
-	  if (dl * dl < 1) {
-	    dl = 1;
-	  }
-	  var fl;
-	  var gl;
-	  if (!isNaN(this.longc)) {
-	    //Central point and azimuth method
-
-	    if (this.lat0 >= 0) {
-	      fl = dl + Math.sqrt(dl * dl - 1);
-	    }
-	    else {
-	      fl = dl - Math.sqrt(dl * dl - 1);
-	    }
-	    this.el = fl * Math.pow(t0, this.bl);
-	    gl = 0.5 * (fl - 1 / fl);
-	    this.gamma0 = Math.asin(Math.sin(this.alpha) / dl);
-	    this.long0 = this.longc - Math.asin(gl * Math.tan(this.gamma0)) / this.bl;
-
-	  }
-	  else {
-	    //2 points method
-	    var t1 = tsfnz(this.e, this.lat1, Math.sin(this.lat1));
-	    var t2 = tsfnz(this.e, this.lat2, Math.sin(this.lat2));
-	    if (this.lat0 >= 0) {
-	      this.el = (dl + Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
-	    }
-	    else {
-	      this.el = (dl - Math.sqrt(dl * dl - 1)) * Math.pow(t0, this.bl);
-	    }
-	    var hl = Math.pow(t1, this.bl);
-	    var ll = Math.pow(t2, this.bl);
-	    fl = this.el / hl;
-	    gl = 0.5 * (fl - 1 / fl);
-	    var jl = (this.el * this.el - ll * hl) / (this.el * this.el + ll * hl);
-	    var pl = (ll - hl) / (ll + hl);
-	    var dlon12 = adjust_lon(this.long1 - this.long2);
-	    this.long0 = 0.5 * (this.long1 + this.long2) - Math.atan(jl * Math.tan(0.5 * this.bl * (dlon12)) / pl) / this.bl;
-	    this.long0 = adjust_lon(this.long0);
-	    var dlon10 = adjust_lon(this.long1 - this.long0);
-	    this.gamma0 = Math.atan(Math.sin(this.bl * (dlon10)) / gl);
-	    this.alpha = Math.asin(dl * Math.sin(this.gamma0));
-	  }
-
-	  if (this.no_off) {
-	    this.uc = 0;
-	  }
-	  else {
-	    if (this.lat0 >= 0) {
-	      this.uc = this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
-	    }
-	    else {
-	      this.uc = -1 * this.al / this.bl * Math.atan2(Math.sqrt(dl * dl - 1), Math.cos(this.alpha));
-	    }
-	  }
-
-	};
-
-
-	/* Oblique Mercator forward equations--mapping lat,long to x,y
-	    ----------------------------------------------------------*/
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var dlon = adjust_lon(lon - this.long0);
-	  var us, vs;
-	  var con;
-	  if (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN) {
-	    if (lat > 0) {
-	      con = -1;
-	    }
-	    else {
-	      con = 1;
-	    }
-	    vs = this.al / this.bl * Math.log(Math.tan(FORTPI + con * this.gamma0 * 0.5));
-	    us = -1 * con * HALF_PI * this.al / this.bl;
-	  }
-	  else {
-	    var t = tsfnz(this.e, lat, Math.sin(lat));
-	    var ql = this.el / Math.pow(t, this.bl);
-	    var sl = 0.5 * (ql - 1 / ql);
-	    var tl = 0.5 * (ql + 1 / ql);
-	    var vl = Math.sin(this.bl * (dlon));
-	    var ul = (sl * Math.sin(this.gamma0) - vl * Math.cos(this.gamma0)) / tl;
-	    if (Math.abs(Math.abs(ul) - 1) <= EPSLN) {
-	      vs = Number.POSITIVE_INFINITY;
-	    }
-	    else {
-	      vs = 0.5 * this.al * Math.log((1 - ul) / (1 + ul)) / this.bl;
-	    }
-	    if (Math.abs(Math.cos(this.bl * (dlon))) <= EPSLN) {
-	      us = this.al * this.bl * (dlon);
-	    }
-	    else {
-	      us = this.al * Math.atan2(sl * Math.cos(this.gamma0) + vl * Math.sin(this.gamma0), Math.cos(this.bl * dlon)) / this.bl;
-	    }
-	  }
-
-	  if (this.no_rot) {
-	    p.x = this.x0 + us;
-	    p.y = this.y0 + vs;
-	  }
-	  else {
-
-	    us -= this.uc;
-	    p.x = this.x0 + vs * Math.cos(this.alpha) + us * Math.sin(this.alpha);
-	    p.y = this.y0 + us * Math.cos(this.alpha) - vs * Math.sin(this.alpha);
-	  }
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var us, vs;
-	  if (this.no_rot) {
-	    vs = p.y - this.y0;
-	    us = p.x - this.x0;
-	  }
-	  else {
-	    vs = (p.x - this.x0) * Math.cos(this.alpha) - (p.y - this.y0) * Math.sin(this.alpha);
-	    us = (p.y - this.y0) * Math.cos(this.alpha) + (p.x - this.x0) * Math.sin(this.alpha);
-	    us += this.uc;
-	  }
-	  var qp = Math.exp(-1 * this.bl * vs / this.al);
-	  var sp = 0.5 * (qp - 1 / qp);
-	  var tp = 0.5 * (qp + 1 / qp);
-	  var vp = Math.sin(this.bl * us / this.al);
-	  var up = (vp * Math.cos(this.gamma0) + sp * Math.sin(this.gamma0)) / tp;
-	  var ts = Math.pow(this.el / Math.sqrt((1 + up) / (1 - up)), 1 / this.bl);
-	  if (Math.abs(up - 1) < EPSLN) {
-	    p.x = this.long0;
-	    p.y = HALF_PI;
-	  }
-	  else if (Math.abs(up + 1) < EPSLN) {
-	    p.x = this.long0;
-	    p.y = -1 * HALF_PI;
-	  }
-	  else {
-	    p.y = phi2z(this.e, ts);
-	    p.x = adjust_lon(this.long0 - Math.atan2(sp * Math.cos(this.gamma0) - vp * Math.sin(this.gamma0), Math.cos(this.bl * us / this.al)) / this.bl);
-	  }
-	  return p;
-	};
-
-	exports.names = ["Hotine_Oblique_Mercator", "Hotine Oblique Mercator", "Hotine_Oblique_Mercator_Azimuth_Natural_Origin", "Hotine_Oblique_Mercator_Azimuth_Center", "omerc"];
-
-/***/ }),
-/* 56 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var EPSLN = 1.0e-10;
-	var msfnz = __webpack_require__(25);
-	var tsfnz = __webpack_require__(28);
-	var HALF_PI = Math.PI/2;
-	var sign = __webpack_require__(27);
-	var adjust_lon = __webpack_require__(26);
-	var phi2z = __webpack_require__(29);
-	exports.init = function() {
-
-	  // array of:  r_maj,r_min,lat1,lat2,c_lon,c_lat,false_east,false_north
-	  //double c_lat;                   /* center latitude                      */
-	  //double c_lon;                   /* center longitude                     */
-	  //double lat1;                    /* first standard parallel              */
-	  //double lat2;                    /* second standard parallel             */
-	  //double r_maj;                   /* major axis                           */
-	  //double r_min;                   /* minor axis                           */
-	  //double false_east;              /* x offset in meters                   */
-	  //double false_north;             /* y offset in meters                   */
-
-	  if (!this.lat2) {
-	    this.lat2 = this.lat1;
-	  } //if lat2 is not defined
-	  if (!this.k0) {
-	    this.k0 = 1;
-	  }
-	  this.x0 = this.x0 || 0;
-	  this.y0 = this.y0 || 0;
-	  // Standard Parallels cannot be equal and on opposite sides of the equator
-	  if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
-	    return;
-	  }
-
-	  var temp = this.b / this.a;
-	  this.e = Math.sqrt(1 - temp * temp);
-
-	  var sin1 = Math.sin(this.lat1);
-	  var cos1 = Math.cos(this.lat1);
-	  var ms1 = msfnz(this.e, sin1, cos1);
-	  var ts1 = tsfnz(this.e, this.lat1, sin1);
-
-	  var sin2 = Math.sin(this.lat2);
-	  var cos2 = Math.cos(this.lat2);
-	  var ms2 = msfnz(this.e, sin2, cos2);
-	  var ts2 = tsfnz(this.e, this.lat2, sin2);
-
-	  var ts0 = tsfnz(this.e, this.lat0, Math.sin(this.lat0));
-
-	  if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
-	    this.ns = Math.log(ms1 / ms2) / Math.log(ts1 / ts2);
-	  }
-	  else {
-	    this.ns = sin1;
-	  }
-	  if (isNaN(this.ns)) {
-	    this.ns = sin1;
-	  }
-	  this.f0 = ms1 / (this.ns * Math.pow(ts1, this.ns));
-	  this.rh = this.a * this.f0 * Math.pow(ts0, this.ns);
-	  if (!this.title) {
-	    this.title = "Lambert Conformal Conic";
-	  }
-	};
-
-
-	// Lambert Conformal conic forward equations--mapping lat,long to x,y
-	// -----------------------------------------------------------------
-	exports.forward = function(p) {
-
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  // singular cases :
-	  if (Math.abs(2 * Math.abs(lat) - Math.PI) <= EPSLN) {
-	    lat = sign(lat) * (HALF_PI - 2 * EPSLN);
-	  }
-
-	  var con = Math.abs(Math.abs(lat) - HALF_PI);
-	  var ts, rh1;
-	  if (con > EPSLN) {
-	    ts = tsfnz(this.e, lat, Math.sin(lat));
-	    rh1 = this.a * this.f0 * Math.pow(ts, this.ns);
-	  }
-	  else {
-	    con = lat * this.ns;
-	    if (con <= 0) {
-	      return null;
-	    }
-	    rh1 = 0;
-	  }
-	  var theta = this.ns * adjust_lon(lon - this.long0);
-	  p.x = this.k0 * (rh1 * Math.sin(theta)) + this.x0;
-	  p.y = this.k0 * (this.rh - rh1 * Math.cos(theta)) + this.y0;
-
-	  return p;
-	};
-
-	// Lambert Conformal Conic inverse equations--mapping x,y to lat/long
-	// -----------------------------------------------------------------
-	exports.inverse = function(p) {
-
-	  var rh1, con, ts;
-	  var lat, lon;
-	  var x = (p.x - this.x0) / this.k0;
-	  var y = (this.rh - (p.y - this.y0) / this.k0);
-	  if (this.ns > 0) {
-	    rh1 = Math.sqrt(x * x + y * y);
-	    con = 1;
-	  }
-	  else {
-	    rh1 = -Math.sqrt(x * x + y * y);
-	    con = -1;
-	  }
-	  var theta = 0;
-	  if (rh1 !== 0) {
-	    theta = Math.atan2((con * x), (con * y));
-	  }
-	  if ((rh1 !== 0) || (this.ns > 0)) {
-	    con = 1 / this.ns;
-	    ts = Math.pow((rh1 / (this.a * this.f0)), con);
-	    lat = phi2z(this.e, ts);
-	    if (lat === -9999) {
-	      return null;
-	    }
-	  }
-	  else {
-	    lat = -HALF_PI;
-	  }
-	  lon = adjust_lon(theta / this.ns + this.long0);
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-
-	exports.names = ["Lambert Tangential Conformal Conic Projection", "Lambert_Conformal_Conic", "Lambert_Conformal_Conic_2SP", "lcc"];
-
-
-/***/ }),
-/* 57 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	exports.init = function() {
-	  this.a = 6377397.155;
-	  this.es = 0.006674372230614;
-	  this.e = Math.sqrt(this.es);
-	  if (!this.lat0) {
-	    this.lat0 = 0.863937979737193;
-	  }
-	  if (!this.long0) {
-	    this.long0 = 0.7417649320975901 - 0.308341501185665;
-	  }
-	  /* if scale not set default to 0.9999 */
-	  if (!this.k0) {
-	    this.k0 = 0.9999;
-	  }
-	  this.s45 = 0.785398163397448; /* 45 */
-	  this.s90 = 2 * this.s45;
-	  this.fi0 = this.lat0;
-	  this.e2 = this.es;
-	  this.e = Math.sqrt(this.e2);
-	  this.alfa = Math.sqrt(1 + (this.e2 * Math.pow(Math.cos(this.fi0), 4)) / (1 - this.e2));
-	  this.uq = 1.04216856380474;
-	  this.u0 = Math.asin(Math.sin(this.fi0) / this.alfa);
-	  this.g = Math.pow((1 + this.e * Math.sin(this.fi0)) / (1 - this.e * Math.sin(this.fi0)), this.alfa * this.e / 2);
-	  this.k = Math.tan(this.u0 / 2 + this.s45) / Math.pow(Math.tan(this.fi0 / 2 + this.s45), this.alfa) * this.g;
-	  this.k1 = this.k0;
-	  this.n0 = this.a * Math.sqrt(1 - this.e2) / (1 - this.e2 * Math.pow(Math.sin(this.fi0), 2));
-	  this.s0 = 1.37008346281555;
-	  this.n = Math.sin(this.s0);
-	  this.ro0 = this.k1 * this.n0 / Math.tan(this.s0);
-	  this.ad = this.s90 - this.uq;
-	};
-
-	/* ellipsoid */
-	/* calculate xy from lat/lon */
-	/* Constants, identical to inverse transform function */
-	exports.forward = function(p) {
-	  var gfi, u, deltav, s, d, eps, ro;
-	  var lon = p.x;
-	  var lat = p.y;
-	  var delta_lon = adjust_lon(lon - this.long0);
-	  /* Transformation */
-	  gfi = Math.pow(((1 + this.e * Math.sin(lat)) / (1 - this.e * Math.sin(lat))), (this.alfa * this.e / 2));
-	  u = 2 * (Math.atan(this.k * Math.pow(Math.tan(lat / 2 + this.s45), this.alfa) / gfi) - this.s45);
-	  deltav = -delta_lon * this.alfa;
-	  s = Math.asin(Math.cos(this.ad) * Math.sin(u) + Math.sin(this.ad) * Math.cos(u) * Math.cos(deltav));
-	  d = Math.asin(Math.cos(u) * Math.sin(deltav) / Math.cos(s));
-	  eps = this.n * d;
-	  ro = this.ro0 * Math.pow(Math.tan(this.s0 / 2 + this.s45), this.n) / Math.pow(Math.tan(s / 2 + this.s45), this.n);
-	  p.y = ro * Math.cos(eps) / 1;
-	  p.x = ro * Math.sin(eps) / 1;
-
-	  if (!this.czech) {
-	    p.y *= -1;
-	    p.x *= -1;
-	  }
-	  return (p);
-	};
-
-	/* calculate lat/lon from xy */
-	exports.inverse = function(p) {
-	  var u, deltav, s, d, eps, ro, fi1;
-	  var ok;
-
-	  /* Transformation */
-	  /* revert y, x*/
-	  var tmp = p.x;
-	  p.x = p.y;
-	  p.y = tmp;
-	  if (!this.czech) {
-	    p.y *= -1;
-	    p.x *= -1;
-	  }
-	  ro = Math.sqrt(p.x * p.x + p.y * p.y);
-	  eps = Math.atan2(p.y, p.x);
-	  d = eps / Math.sin(this.s0);
-	  s = 2 * (Math.atan(Math.pow(this.ro0 / ro, 1 / this.n) * Math.tan(this.s0 / 2 + this.s45)) - this.s45);
-	  u = Math.asin(Math.cos(this.ad) * Math.sin(s) - Math.sin(this.ad) * Math.cos(s) * Math.cos(d));
-	  deltav = Math.asin(Math.cos(s) * Math.sin(d) / Math.cos(u));
-	  p.x = this.long0 - deltav / this.alfa;
-	  fi1 = u;
-	  ok = 0;
-	  var iter = 0;
-	  do {
-	    p.y = 2 * (Math.atan(Math.pow(this.k, - 1 / this.alfa) * Math.pow(Math.tan(u / 2 + this.s45), 1 / this.alfa) * Math.pow((1 + this.e * Math.sin(fi1)) / (1 - this.e * Math.sin(fi1)), this.e / 2)) - this.s45);
-	    if (Math.abs(fi1 - p.y) < 0.0000000001) {
-	      ok = 1;
-	    }
-	    fi1 = p.y;
-	    iter += 1;
-	  } while (ok === 0 && iter < 15);
-	  if (iter >= 15) {
-	    return null;
-	  }
-
-	  return (p);
-	};
-	exports.names = ["Krovak", "krovak"];
-
-
-/***/ }),
-/* 58 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var mlfn = __webpack_require__(59);
-	var e0fn = __webpack_require__(60);
-	var e1fn = __webpack_require__(61);
-	var e2fn = __webpack_require__(62);
-	var e3fn = __webpack_require__(63);
-	var gN = __webpack_require__(64);
-	var adjust_lon = __webpack_require__(26);
-	var adjust_lat = __webpack_require__(65);
-	var imlfn = __webpack_require__(66);
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	exports.init = function() {
-	  if (!this.sphere) {
-	    this.e0 = e0fn(this.es);
-	    this.e1 = e1fn(this.es);
-	    this.e2 = e2fn(this.es);
-	    this.e3 = e3fn(this.es);
-	    this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
-	  }
-	};
-
-
-
-	/* Cassini forward equations--mapping lat,long to x,y
-	  -----------------------------------------------------------------------*/
-	exports.forward = function(p) {
-
-	  /* Forward equations
-	      -----------------*/
-	  var x, y;
-	  var lam = p.x;
-	  var phi = p.y;
-	  lam = adjust_lon(lam - this.long0);
-
-	  if (this.sphere) {
-	    x = this.a * Math.asin(Math.cos(phi) * Math.sin(lam));
-	    y = this.a * (Math.atan2(Math.tan(phi), Math.cos(lam)) - this.lat0);
-	  }
-	  else {
-	    //ellipsoid
-	    var sinphi = Math.sin(phi);
-	    var cosphi = Math.cos(phi);
-	    var nl = gN(this.a, this.e, sinphi);
-	    var tl = Math.tan(phi) * Math.tan(phi);
-	    var al = lam * Math.cos(phi);
-	    var asq = al * al;
-	    var cl = this.es * cosphi * cosphi / (1 - this.es);
-	    var ml = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
-
-	    x = nl * al * (1 - asq * tl * (1 / 6 - (8 - tl + 8 * cl) * asq / 120));
-	    y = ml - this.ml0 + nl * sinphi / cosphi * asq * (0.5 + (5 - tl + 6 * cl) * asq / 24);
-
-
-	  }
-
-	  p.x = x + this.x0;
-	  p.y = y + this.y0;
-	  return p;
-	};
-
-	/* Inverse equations
-	  -----------------*/
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  var x = p.x / this.a;
-	  var y = p.y / this.a;
-	  var phi, lam;
-
-	  if (this.sphere) {
-	    var dd = y + this.lat0;
-	    phi = Math.asin(Math.sin(dd) * Math.cos(x));
-	    lam = Math.atan2(Math.tan(x), Math.cos(dd));
-	  }
-	  else {
-	    /* ellipsoid */
-	    var ml1 = this.ml0 / this.a + y;
-	    var phi1 = imlfn(ml1, this.e0, this.e1, this.e2, this.e3);
-	    if (Math.abs(Math.abs(phi1) - HALF_PI) <= EPSLN) {
-	      p.x = this.long0;
-	      p.y = HALF_PI;
-	      if (y < 0) {
-	        p.y *= -1;
-	      }
-	      return p;
-	    }
-	    var nl1 = gN(this.a, this.e, Math.sin(phi1));
-
-	    var rl1 = nl1 * nl1 * nl1 / this.a / this.a * (1 - this.es);
-	    var tl1 = Math.pow(Math.tan(phi1), 2);
-	    var dl = x * this.a / nl1;
-	    var dsq = dl * dl;
-	    phi = phi1 - nl1 * Math.tan(phi1) / rl1 * dl * dl * (0.5 - (1 + 3 * tl1) * dl * dl / 24);
-	    lam = dl * (1 - dsq * (tl1 / 3 + (1 + 3 * tl1) * tl1 * dsq / 15)) / Math.cos(phi1);
-
-	  }
-
-	  p.x = adjust_lon(lam + this.long0);
-	  p.y = adjust_lat(phi);
-	  return p;
-
-	};
-	exports.names = ["Cassini", "Cassini_Soldner", "cass"];
-
-/***/ }),
-/* 59 */
-/***/ (function(module, exports) {
-
-	module.exports = function(e0, e1, e2, e3, phi) {
-	  return (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi));
-	};
-
-/***/ }),
-/* 60 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  return (1 - 0.25 * x * (1 + x / 16 * (3 + 1.25 * x)));
-	};
-
-/***/ }),
-/* 61 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  return (0.375 * x * (1 + 0.25 * x * (1 + 0.46875 * x)));
-	};
-
-/***/ }),
-/* 62 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  return (0.05859375 * x * x * (1 + 0.75 * x));
-	};
-
-/***/ }),
-/* 63 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  return (x * x * x * (35 / 3072));
-	};
-
-/***/ }),
-/* 64 */
-/***/ (function(module, exports) {
-
-	module.exports = function(a, e, sinphi) {
-	  var temp = e * sinphi;
-	  return a / Math.sqrt(1 - temp * temp);
-	};
-
-/***/ }),
-/* 65 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var HALF_PI = Math.PI/2;
-	var sign = __webpack_require__(27);
-
-	module.exports = function(x) {
-	  return (Math.abs(x) < HALF_PI) ? x : (x - (sign(x) * Math.PI));
-	};
-
-/***/ }),
-/* 66 */
-/***/ (function(module, exports) {
-
-	module.exports = function(ml, e0, e1, e2, e3) {
-	  var phi;
-	  var dphi;
-
-	  phi = ml / e0;
-	  for (var i = 0; i < 15; i++) {
-	    dphi = (ml - (e0 * phi - e1 * Math.sin(2 * phi) + e2 * Math.sin(4 * phi) - e3 * Math.sin(6 * phi))) / (e0 - 2 * e1 * Math.cos(2 * phi) + 4 * e2 * Math.cos(4 * phi) - 6 * e3 * Math.cos(6 * phi));
-	    phi += dphi;
-	    if (Math.abs(dphi) <= 0.0000000001) {
-	      return phi;
-	    }
-	  }
-
-	  //..reportError("IMLFN-CONV:Latitude failed to converge after 15 iterations");
-	  return NaN;
-	};
-
-/***/ }),
-/* 67 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var HALF_PI = Math.PI/2;
-	var FORTPI = Math.PI/4;
-	var EPSLN = 1.0e-10;
-	var qsfnz = __webpack_require__(68);
-	var adjust_lon = __webpack_require__(26);
-	/*
-	  reference
-	    "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
-	    The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
-	  */
-
-	exports.S_POLE = 1;
-	exports.N_POLE = 2;
-	exports.EQUIT = 3;
-	exports.OBLIQ = 4;
-
-
-	/* Initialize the Lambert Azimuthal Equal Area projection
-	  ------------------------------------------------------*/
-	exports.init = function() {
-	  var t = Math.abs(this.lat0);
-	  if (Math.abs(t - HALF_PI) < EPSLN) {
-	    this.mode = this.lat0 < 0 ? this.S_POLE : this.N_POLE;
-	  }
-	  else if (Math.abs(t) < EPSLN) {
-	    this.mode = this.EQUIT;
-	  }
-	  else {
-	    this.mode = this.OBLIQ;
-	  }
-	  if (this.es > 0) {
-	    var sinphi;
-
-	    this.qp = qsfnz(this.e, 1);
-	    this.mmf = 0.5 / (1 - this.es);
-	    this.apa = this.authset(this.es);
-	    switch (this.mode) {
-	    case this.N_POLE:
-	      this.dd = 1;
-	      break;
-	    case this.S_POLE:
-	      this.dd = 1;
-	      break;
-	    case this.EQUIT:
-	      this.rq = Math.sqrt(0.5 * this.qp);
-	      this.dd = 1 / this.rq;
-	      this.xmf = 1;
-	      this.ymf = 0.5 * this.qp;
-	      break;
-	    case this.OBLIQ:
-	      this.rq = Math.sqrt(0.5 * this.qp);
-	      sinphi = Math.sin(this.lat0);
-	      this.sinb1 = qsfnz(this.e, sinphi) / this.qp;
-	      this.cosb1 = Math.sqrt(1 - this.sinb1 * this.sinb1);
-	      this.dd = Math.cos(this.lat0) / (Math.sqrt(1 - this.es * sinphi * sinphi) * this.rq * this.cosb1);
-	      this.ymf = (this.xmf = this.rq) / this.dd;
-	      this.xmf *= this.dd;
-	      break;
-	    }
-	  }
-	  else {
-	    if (this.mode === this.OBLIQ) {
-	      this.sinph0 = Math.sin(this.lat0);
-	      this.cosph0 = Math.cos(this.lat0);
-	    }
-	  }
-	};
-
-	/* Lambert Azimuthal Equal Area forward equations--mapping lat,long to x,y
-	  -----------------------------------------------------------------------*/
-	exports.forward = function(p) {
-
-	  /* Forward equations
-	      -----------------*/
-	  var x, y, coslam, sinlam, sinphi, q, sinb, cosb, b, cosphi;
-	  var lam = p.x;
-	  var phi = p.y;
-
-	  lam = adjust_lon(lam - this.long0);
-
-	  if (this.sphere) {
-	    sinphi = Math.sin(phi);
-	    cosphi = Math.cos(phi);
-	    coslam = Math.cos(lam);
-	    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
-	      y = (this.mode === this.EQUIT) ? 1 + cosphi * coslam : 1 + this.sinph0 * sinphi + this.cosph0 * cosphi * coslam;
-	      if (y <= EPSLN) {
-	        return null;
-	      }
-	      y = Math.sqrt(2 / y);
-	      x = y * cosphi * Math.sin(lam);
-	      y *= (this.mode === this.EQUIT) ? sinphi : this.cosph0 * sinphi - this.sinph0 * cosphi * coslam;
-	    }
-	    else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
-	      if (this.mode === this.N_POLE) {
-	        coslam = -coslam;
-	      }
-	      if (Math.abs(phi + this.phi0) < EPSLN) {
-	        return null;
-	      }
-	      y = FORTPI - phi * 0.5;
-	      y = 2 * ((this.mode === this.S_POLE) ? Math.cos(y) : Math.sin(y));
-	      x = y * Math.sin(lam);
-	      y *= coslam;
-	    }
-	  }
-	  else {
-	    sinb = 0;
-	    cosb = 0;
-	    b = 0;
-	    coslam = Math.cos(lam);
-	    sinlam = Math.sin(lam);
-	    sinphi = Math.sin(phi);
-	    q = qsfnz(this.e, sinphi);
-	    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
-	      sinb = q / this.qp;
-	      cosb = Math.sqrt(1 - sinb * sinb);
-	    }
-	    switch (this.mode) {
-	    case this.OBLIQ:
-	      b = 1 + this.sinb1 * sinb + this.cosb1 * cosb * coslam;
-	      break;
-	    case this.EQUIT:
-	      b = 1 + cosb * coslam;
-	      break;
-	    case this.N_POLE:
-	      b = HALF_PI + phi;
-	      q = this.qp - q;
-	      break;
-	    case this.S_POLE:
-	      b = phi - HALF_PI;
-	      q = this.qp + q;
-	      break;
-	    }
-	    if (Math.abs(b) < EPSLN) {
-	      return null;
-	    }
-	    switch (this.mode) {
-	    case this.OBLIQ:
-	    case this.EQUIT:
-	      b = Math.sqrt(2 / b);
-	      if (this.mode === this.OBLIQ) {
-	        y = this.ymf * b * (this.cosb1 * sinb - this.sinb1 * cosb * coslam);
-	      }
-	      else {
-	        y = (b = Math.sqrt(2 / (1 + cosb * coslam))) * sinb * this.ymf;
-	      }
-	      x = this.xmf * b * cosb * sinlam;
-	      break;
-	    case this.N_POLE:
-	    case this.S_POLE:
-	      if (q >= 0) {
-	        x = (b = Math.sqrt(q)) * sinlam;
-	        y = coslam * ((this.mode === this.S_POLE) ? b : -b);
-	      }
-	      else {
-	        x = y = 0;
-	      }
-	      break;
-	    }
-	  }
-
-	  p.x = this.a * x + this.x0;
-	  p.y = this.a * y + this.y0;
-	  return p;
-	};
-
-	/* Inverse equations
-	  -----------------*/
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  var x = p.x / this.a;
-	  var y = p.y / this.a;
-	  var lam, phi, cCe, sCe, q, rho, ab;
-
-	  if (this.sphere) {
-	    var cosz = 0,
-	      rh, sinz = 0;
-
-	    rh = Math.sqrt(x * x + y * y);
-	    phi = rh * 0.5;
-	    if (phi > 1) {
-	      return null;
-	    }
-	    phi = 2 * Math.asin(phi);
-	    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
-	      sinz = Math.sin(phi);
-	      cosz = Math.cos(phi);
-	    }
-	    switch (this.mode) {
-	    case this.EQUIT:
-	      phi = (Math.abs(rh) <= EPSLN) ? 0 : Math.asin(y * sinz / rh);
-	      x *= sinz;
-	      y = cosz * rh;
-	      break;
-	    case this.OBLIQ:
-	      phi = (Math.abs(rh) <= EPSLN) ? this.phi0 : Math.asin(cosz * this.sinph0 + y * sinz * this.cosph0 / rh);
-	      x *= sinz * this.cosph0;
-	      y = (cosz - Math.sin(phi) * this.sinph0) * rh;
-	      break;
-	    case this.N_POLE:
-	      y = -y;
-	      phi = HALF_PI - phi;
-	      break;
-	    case this.S_POLE:
-	      phi -= HALF_PI;
-	      break;
-	    }
-	    lam = (y === 0 && (this.mode === this.EQUIT || this.mode === this.OBLIQ)) ? 0 : Math.atan2(x, y);
-	  }
-	  else {
-	    ab = 0;
-	    if (this.mode === this.OBLIQ || this.mode === this.EQUIT) {
-	      x /= this.dd;
-	      y *= this.dd;
-	      rho = Math.sqrt(x * x + y * y);
-	      if (rho < EPSLN) {
-	        p.x = 0;
-	        p.y = this.phi0;
-	        return p;
-	      }
-	      sCe = 2 * Math.asin(0.5 * rho / this.rq);
-	      cCe = Math.cos(sCe);
-	      x *= (sCe = Math.sin(sCe));
-	      if (this.mode === this.OBLIQ) {
-	        ab = cCe * this.sinb1 + y * sCe * this.cosb1 / rho;
-	        q = this.qp * ab;
-	        y = rho * this.cosb1 * cCe - y * this.sinb1 * sCe;
-	      }
-	      else {
-	        ab = y * sCe / rho;
-	        q = this.qp * ab;
-	        y = rho * cCe;
-	      }
-	    }
-	    else if (this.mode === this.N_POLE || this.mode === this.S_POLE) {
-	      if (this.mode === this.N_POLE) {
-	        y = -y;
-	      }
-	      q = (x * x + y * y);
-	      if (!q) {
-	        p.x = 0;
-	        p.y = this.phi0;
-	        return p;
-	      }
-	      ab = 1 - q / this.qp;
-	      if (this.mode === this.S_POLE) {
-	        ab = -ab;
-	      }
-	    }
-	    lam = Math.atan2(x, y);
-	    phi = this.authlat(Math.asin(ab), this.apa);
-	  }
-
-
-	  p.x = adjust_lon(this.long0 + lam);
-	  p.y = phi;
-	  return p;
-	};
-
-	/* determine latitude from authalic latitude */
-	exports.P00 = 0.33333333333333333333;
-	exports.P01 = 0.17222222222222222222;
-	exports.P02 = 0.10257936507936507936;
-	exports.P10 = 0.06388888888888888888;
-	exports.P11 = 0.06640211640211640211;
-	exports.P20 = 0.01641501294219154443;
-
-	exports.authset = function(es) {
-	  var t;
-	  var APA = [];
-	  APA[0] = es * this.P00;
-	  t = es * es;
-	  APA[0] += t * this.P01;
-	  APA[1] = t * this.P10;
-	  t *= es;
-	  APA[0] += t * this.P02;
-	  APA[1] += t * this.P11;
-	  APA[2] = t * this.P20;
-	  return APA;
-	};
-
-	exports.authlat = function(beta, APA) {
-	  var t = beta + beta;
-	  return (beta + APA[0] * Math.sin(t) + APA[1] * Math.sin(t + t) + APA[2] * Math.sin(t + t + t));
-	};
-	exports.names = ["Lambert Azimuthal Equal Area", "Lambert_Azimuthal_Equal_Area", "laea"];
-
-
-/***/ }),
-/* 68 */
-/***/ (function(module, exports) {
-
-	module.exports = function(eccent, sinphi) {
-	  var con;
-	  if (eccent > 1.0e-7) {
-	    con = eccent * sinphi;
-	    return ((1 - eccent * eccent) * (sinphi / (1 - con * con) - (0.5 / eccent) * Math.log((1 - con) / (1 + con))));
-	  }
-	  else {
-	    return (2 * sinphi);
-	  }
-	};
-
-/***/ }),
-/* 69 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var EPSLN = 1.0e-10;
-	var msfnz = __webpack_require__(25);
-	var qsfnz = __webpack_require__(68);
-	var adjust_lon = __webpack_require__(26);
-	var asinz = __webpack_require__(70);
-	exports.init = function() {
-
-	  if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
-	    return;
-	  }
-	  this.temp = this.b / this.a;
-	  this.es = 1 - Math.pow(this.temp, 2);
-	  this.e3 = Math.sqrt(this.es);
-
-	  this.sin_po = Math.sin(this.lat1);
-	  this.cos_po = Math.cos(this.lat1);
-	  this.t1 = this.sin_po;
-	  this.con = this.sin_po;
-	  this.ms1 = msfnz(this.e3, this.sin_po, this.cos_po);
-	  this.qs1 = qsfnz(this.e3, this.sin_po, this.cos_po);
-
-	  this.sin_po = Math.sin(this.lat2);
-	  this.cos_po = Math.cos(this.lat2);
-	  this.t2 = this.sin_po;
-	  this.ms2 = msfnz(this.e3, this.sin_po, this.cos_po);
-	  this.qs2 = qsfnz(this.e3, this.sin_po, this.cos_po);
-
-	  this.sin_po = Math.sin(this.lat0);
-	  this.cos_po = Math.cos(this.lat0);
-	  this.t3 = this.sin_po;
-	  this.qs0 = qsfnz(this.e3, this.sin_po, this.cos_po);
-
-	  if (Math.abs(this.lat1 - this.lat2) > EPSLN) {
-	    this.ns0 = (this.ms1 * this.ms1 - this.ms2 * this.ms2) / (this.qs2 - this.qs1);
-	  }
-	  else {
-	    this.ns0 = this.con;
-	  }
-	  this.c = this.ms1 * this.ms1 + this.ns0 * this.qs1;
-	  this.rh = this.a * Math.sqrt(this.c - this.ns0 * this.qs0) / this.ns0;
-	};
-
-	/* Albers Conical Equal Area forward equations--mapping lat,long to x,y
-	  -------------------------------------------------------------------*/
-	exports.forward = function(p) {
-
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  this.sin_phi = Math.sin(lat);
-	  this.cos_phi = Math.cos(lat);
-
-	  var qs = qsfnz(this.e3, this.sin_phi, this.cos_phi);
-	  var rh1 = this.a * Math.sqrt(this.c - this.ns0 * qs) / this.ns0;
-	  var theta = this.ns0 * adjust_lon(lon - this.long0);
-	  var x = rh1 * Math.sin(theta) + this.x0;
-	  var y = this.rh - rh1 * Math.cos(theta) + this.y0;
-
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-
-	exports.inverse = function(p) {
-	  var rh1, qs, con, theta, lon, lat;
-
-	  p.x -= this.x0;
-	  p.y = this.rh - p.y + this.y0;
-	  if (this.ns0 >= 0) {
-	    rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
-	    con = 1;
-	  }
-	  else {
-	    rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
-	    con = -1;
-	  }
-	  theta = 0;
-	  if (rh1 !== 0) {
-	    theta = Math.atan2(con * p.x, con * p.y);
-	  }
-	  con = rh1 * this.ns0 / this.a;
-	  if (this.sphere) {
-	    lat = Math.asin((this.c - con * con) / (2 * this.ns0));
-	  }
-	  else {
-	    qs = (this.c - con * con) / this.ns0;
-	    lat = this.phi1z(this.e3, qs);
-	  }
-
-	  lon = adjust_lon(theta / this.ns0 + this.long0);
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-
-	/* Function to compute phi1, the latitude for the inverse of the
-	   Albers Conical Equal-Area projection.
-	-------------------------------------------*/
-	exports.phi1z = function(eccent, qs) {
-	  var sinphi, cosphi, con, com, dphi;
-	  var phi = asinz(0.5 * qs);
-	  if (eccent < EPSLN) {
-	    return phi;
-	  }
-
-	  var eccnts = eccent * eccent;
-	  for (var i = 1; i <= 25; i++) {
-	    sinphi = Math.sin(phi);
-	    cosphi = Math.cos(phi);
-	    con = eccent * sinphi;
-	    com = 1 - con * con;
-	    dphi = 0.5 * com * com / cosphi * (qs / (1 - eccnts) - sinphi / com + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
-	    phi = phi + dphi;
-	    if (Math.abs(dphi) <= 1e-7) {
-	      return phi;
-	    }
-	  }
-	  return null;
-	};
-	exports.names = ["Albers_Conic_Equal_Area", "Albers", "aea"];
-
-
-/***/ }),
-/* 70 */
-/***/ (function(module, exports) {
-
-	module.exports = function(x) {
-	  if (Math.abs(x) > 1) {
-	    x = (x > 1) ? 1 : -1;
-	  }
-	  return Math.asin(x);
-	};
-
-/***/ }),
-/* 71 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var EPSLN = 1.0e-10;
-	var asinz = __webpack_require__(70);
-
-	/*
-	  reference:
-	    Wolfram Mathworld "Gnomonic Projection"
-	    http://mathworld.wolfram.com/GnomonicProjection.html
-	    Accessed: 12th November 2009
-	  */
-	exports.init = function() {
-
-	  /* Place parameters in static storage for common use
-	      -------------------------------------------------*/
-	  this.sin_p14 = Math.sin(this.lat0);
-	  this.cos_p14 = Math.cos(this.lat0);
-	  // Approximation for projecting points to the horizon (infinity)
-	  this.infinity_dist = 1000 * this.a;
-	  this.rc = 1;
-	};
-
-
-	/* Gnomonic forward equations--mapping lat,long to x,y
-	    ---------------------------------------------------*/
-	exports.forward = function(p) {
-	  var sinphi, cosphi; /* sin and cos value        */
-	  var dlon; /* delta longitude value      */
-	  var coslon; /* cos of longitude        */
-	  var ksp; /* scale factor          */
-	  var g;
-	  var x, y;
-	  var lon = p.x;
-	  var lat = p.y;
-	  /* Forward equations
-	      -----------------*/
-	  dlon = adjust_lon(lon - this.long0);
-
-	  sinphi = Math.sin(lat);
-	  cosphi = Math.cos(lat);
-
-	  coslon = Math.cos(dlon);
-	  g = this.sin_p14 * sinphi + this.cos_p14 * cosphi * coslon;
-	  ksp = 1;
-	  if ((g > 0) || (Math.abs(g) <= EPSLN)) {
-	    x = this.x0 + this.a * ksp * cosphi * Math.sin(dlon) / g;
-	    y = this.y0 + this.a * ksp * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon) / g;
-	  }
-	  else {
-
-	    // Point is in the opposing hemisphere and is unprojectable
-	    // We still need to return a reasonable point, so we project 
-	    // to infinity, on a bearing 
-	    // equivalent to the northern hemisphere equivalent
-	    // This is a reasonable approximation for short shapes and lines that 
-	    // straddle the horizon.
-
-	    x = this.x0 + this.infinity_dist * cosphi * Math.sin(dlon);
-	    y = this.y0 + this.infinity_dist * (this.cos_p14 * sinphi - this.sin_p14 * cosphi * coslon);
-
-	  }
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-
-	exports.inverse = function(p) {
-	  var rh; /* Rho */
-	  var sinc, cosc;
-	  var c;
-	  var lon, lat;
-
-	  /* Inverse equations
-	      -----------------*/
-	  p.x = (p.x - this.x0) / this.a;
-	  p.y = (p.y - this.y0) / this.a;
-
-	  p.x /= this.k0;
-	  p.y /= this.k0;
-
-	  if ((rh = Math.sqrt(p.x * p.x + p.y * p.y))) {
-	    c = Math.atan2(rh, this.rc);
-	    sinc = Math.sin(c);
-	    cosc = Math.cos(c);
-
-	    lat = asinz(cosc * this.sin_p14 + (p.y * sinc * this.cos_p14) / rh);
-	    lon = Math.atan2(p.x * sinc, rh * this.cos_p14 * cosc - p.y * this.sin_p14 * sinc);
-	    lon = adjust_lon(this.long0 + lon);
-	  }
-	  else {
-	    lat = this.phic0;
-	    lon = 0;
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["gnom"];
-
-
-/***/ }),
-/* 72 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var qsfnz = __webpack_require__(68);
-	var msfnz = __webpack_require__(25);
-	var iqsfnz = __webpack_require__(73);
-	/*
-	  reference:  
-	    "Cartographic Projection Procedures for the UNIX Environment-
-	    A User's Manual" by Gerald I. Evenden,
-	    USGS Open File Report 90-284and Release 4 Interim Reports (2003)
-	*/
-	exports.init = function() {
-	  //no-op
-	  if (!this.sphere) {
-	    this.k0 = msfnz(this.e, Math.sin(this.lat_ts), Math.cos(this.lat_ts));
-	  }
-	};
-
-
-	/* Cylindrical Equal Area forward equations--mapping lat,long to x,y
-	    ------------------------------------------------------------*/
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var x, y;
-	  /* Forward equations
-	      -----------------*/
-	  var dlon = adjust_lon(lon - this.long0);
-	  if (this.sphere) {
-	    x = this.x0 + this.a * dlon * Math.cos(this.lat_ts);
-	    y = this.y0 + this.a * Math.sin(lat) / Math.cos(this.lat_ts);
-	  }
-	  else {
-	    var qs = qsfnz(this.e, Math.sin(lat));
-	    x = this.x0 + this.a * this.k0 * dlon;
-	    y = this.y0 + this.a * qs * 0.5 / this.k0;
-	  }
-
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	/* Cylindrical Equal Area inverse equations--mapping x,y to lat/long
-	    ------------------------------------------------------------*/
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  var lon, lat;
-
-	  if (this.sphere) {
-	    lon = adjust_lon(this.long0 + (p.x / this.a) / Math.cos(this.lat_ts));
-	    lat = Math.asin((p.y / this.a) * Math.cos(this.lat_ts));
-	  }
-	  else {
-	    lat = iqsfnz(this.e, 2 * p.y * this.k0 / this.a);
-	    lon = adjust_lon(this.long0 + p.x / (this.a * this.k0));
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["cea"];
-
-
-/***/ }),
-/* 73 */
-/***/ (function(module, exports) {
-
-	var HALF_PI = Math.PI/2;
-
-	module.exports = function(eccent, q) {
-	  var temp = 1 - (1 - eccent * eccent) / (2 * eccent) * Math.log((1 - eccent) / (1 + eccent));
-	  if (Math.abs(Math.abs(q) - temp) < 1.0E-6) {
-	    if (q < 0) {
-	      return (-1 * HALF_PI);
-	    }
-	    else {
-	      return HALF_PI;
-	    }
-	  }
-	  //var phi = 0.5* q/(1-eccent*eccent);
-	  var phi = Math.asin(0.5 * q);
-	  var dphi;
-	  var sin_phi;
-	  var cos_phi;
-	  var con;
-	  for (var i = 0; i < 30; i++) {
-	    sin_phi = Math.sin(phi);
-	    cos_phi = Math.cos(phi);
-	    con = eccent * sin_phi;
-	    dphi = Math.pow(1 - con * con, 2) / (2 * cos_phi) * (q / (1 - eccent * eccent) - sin_phi / (1 - con * con) + 0.5 / eccent * Math.log((1 - con) / (1 + con)));
-	    phi += dphi;
-	    if (Math.abs(dphi) <= 0.0000000001) {
-	      return phi;
-	    }
-	  }
-
-	  //console.log("IQSFN-CONV:Latitude failed to converge after 30 iterations");
-	  return NaN;
-	};
-
-/***/ }),
-/* 74 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var adjust_lat = __webpack_require__(65);
-	exports.init = function() {
-
-	  this.x0 = this.x0 || 0;
-	  this.y0 = this.y0 || 0;
-	  this.lat0 = this.lat0 || 0;
-	  this.long0 = this.long0 || 0;
-	  this.lat_ts = this.lat_ts || 0;
-	  this.title = this.title || "Equidistant Cylindrical (Plate Carre)";
-
-	  this.rc = Math.cos(this.lat_ts);
-	};
-
-
-	// forward equations--mapping lat,long to x,y
-	// -----------------------------------------------------------------
-	exports.forward = function(p) {
-
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  var dlon = adjust_lon(lon - this.long0);
-	  var dlat = adjust_lat(lat - this.lat0);
-	  p.x = this.x0 + (this.a * dlon * this.rc);
-	  p.y = this.y0 + (this.a * dlat);
-	  return p;
-	};
-
-	// inverse equations--mapping x,y to lat/long
-	// -----------------------------------------------------------------
-	exports.inverse = function(p) {
-
-	  var x = p.x;
-	  var y = p.y;
-
-	  p.x = adjust_lon(this.long0 + ((x - this.x0) / (this.a * this.rc)));
-	  p.y = adjust_lat(this.lat0 + ((y - this.y0) / (this.a)));
-	  return p;
-	};
-	exports.names = ["Equirectangular", "Equidistant_Cylindrical", "eqc"];
-
-
-/***/ }),
-/* 75 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var e0fn = __webpack_require__(60);
-	var e1fn = __webpack_require__(61);
-	var e2fn = __webpack_require__(62);
-	var e3fn = __webpack_require__(63);
-	var adjust_lon = __webpack_require__(26);
-	var adjust_lat = __webpack_require__(65);
-	var mlfn = __webpack_require__(59);
-	var EPSLN = 1.0e-10;
-	var gN = __webpack_require__(64);
-	var MAX_ITER = 20;
-	exports.init = function() {
-	  /* Place parameters in static storage for common use
-	      -------------------------------------------------*/
-	  this.temp = this.b / this.a;
-	  this.es = 1 - Math.pow(this.temp, 2); // devait etre dans tmerc.js mais n y est pas donc je commente sinon retour de valeurs nulles
-	  this.e = Math.sqrt(this.es);
-	  this.e0 = e0fn(this.es);
-	  this.e1 = e1fn(this.es);
-	  this.e2 = e2fn(this.es);
-	  this.e3 = e3fn(this.es);
-	  this.ml0 = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0); //si que des zeros le calcul ne se fait pas
-	};
-
-
-	/* Polyconic forward equations--mapping lat,long to x,y
-	    ---------------------------------------------------*/
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var x, y, el;
-	  var dlon = adjust_lon(lon - this.long0);
-	  el = dlon * Math.sin(lat);
-	  if (this.sphere) {
-	    if (Math.abs(lat) <= EPSLN) {
-	      x = this.a * dlon;
-	      y = -1 * this.a * this.lat0;
-	    }
-	    else {
-	      x = this.a * Math.sin(el) / Math.tan(lat);
-	      y = this.a * (adjust_lat(lat - this.lat0) + (1 - Math.cos(el)) / Math.tan(lat));
-	    }
-	  }
-	  else {
-	    if (Math.abs(lat) <= EPSLN) {
-	      x = this.a * dlon;
-	      y = -1 * this.ml0;
-	    }
-	    else {
-	      var nl = gN(this.a, this.e, Math.sin(lat)) / Math.tan(lat);
-	      x = nl * Math.sin(el);
-	      y = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, lat) - this.ml0 + nl * (1 - Math.cos(el));
-	    }
-
-	  }
-	  p.x = x + this.x0;
-	  p.y = y + this.y0;
-	  return p;
-	};
-
-
-	/* Inverse equations
-	  -----------------*/
-	exports.inverse = function(p) {
-	  var lon, lat, x, y, i;
-	  var al, bl;
-	  var phi, dphi;
-	  x = p.x - this.x0;
-	  y = p.y - this.y0;
-
-	  if (this.sphere) {
-	    if (Math.abs(y + this.a * this.lat0) <= EPSLN) {
-	      lon = adjust_lon(x / this.a + this.long0);
-	      lat = 0;
-	    }
-	    else {
-	      al = this.lat0 + y / this.a;
-	      bl = x * x / this.a / this.a + al * al;
-	      phi = al;
-	      var tanphi;
-	      for (i = MAX_ITER; i; --i) {
-	        tanphi = Math.tan(phi);
-	        dphi = -1 * (al * (phi * tanphi + 1) - phi - 0.5 * (phi * phi + bl) * tanphi) / ((phi - al) / tanphi - 1);
-	        phi += dphi;
-	        if (Math.abs(dphi) <= EPSLN) {
-	          lat = phi;
-	          break;
-	        }
-	      }
-	      lon = adjust_lon(this.long0 + (Math.asin(x * Math.tan(phi) / this.a)) / Math.sin(lat));
-	    }
-	  }
-	  else {
-	    if (Math.abs(y + this.ml0) <= EPSLN) {
-	      lat = 0;
-	      lon = adjust_lon(this.long0 + x / this.a);
-	    }
-	    else {
-
-	      al = (this.ml0 + y) / this.a;
-	      bl = x * x / this.a / this.a + al * al;
-	      phi = al;
-	      var cl, mln, mlnp, ma;
-	      var con;
-	      for (i = MAX_ITER; i; --i) {
-	        con = this.e * Math.sin(phi);
-	        cl = Math.sqrt(1 - con * con) * Math.tan(phi);
-	        mln = this.a * mlfn(this.e0, this.e1, this.e2, this.e3, phi);
-	        mlnp = this.e0 - 2 * this.e1 * Math.cos(2 * phi) + 4 * this.e2 * Math.cos(4 * phi) - 6 * this.e3 * Math.cos(6 * phi);
-	        ma = mln / this.a;
-	        dphi = (al * (cl * ma + 1) - ma - 0.5 * cl * (ma * ma + bl)) / (this.es * Math.sin(2 * phi) * (ma * ma + bl - 2 * al * ma) / (4 * cl) + (al - ma) * (cl * mlnp - 2 / Math.sin(2 * phi)) - mlnp);
-	        phi -= dphi;
-	        if (Math.abs(dphi) <= EPSLN) {
-	          lat = phi;
-	          break;
-	        }
-	      }
-
-	      //lat=phi4z(this.e,this.e0,this.e1,this.e2,this.e3,al,bl,0,0);
-	      cl = Math.sqrt(1 - this.es * Math.pow(Math.sin(lat), 2)) * Math.tan(lat);
-	      lon = adjust_lon(this.long0 + Math.asin(x * cl / this.a) / Math.sin(lat));
-	    }
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["Polyconic", "poly"];
-
-/***/ }),
-/* 76 */
-/***/ (function(module, exports) {
-
-	var SEC_TO_RAD = 4.84813681109535993589914102357e-6;
-	/*
-	  reference
-	    Department of Land and Survey Technical Circular 1973/32
-	      http://www.linz.govt.nz/docs/miscellaneous/nz-map-definition.pdf
-	    OSG Technical Report 4.1
-	      http://www.linz.govt.nz/docs/miscellaneous/nzmg.pdf
-	  */
-
-	/**
-	 * iterations: Number of iterations to refine inverse transform.
-	 *     0 -> km accuracy
-	 *     1 -> m accuracy -- suitable for most mapping applications
-	 *     2 -> mm accuracy
-	 */
-	exports.iterations = 1;
-
-	exports.init = function() {
-	  this.A = [];
-	  this.A[1] = 0.6399175073;
-	  this.A[2] = -0.1358797613;
-	  this.A[3] = 0.063294409;
-	  this.A[4] = -0.02526853;
-	  this.A[5] = 0.0117879;
-	  this.A[6] = -0.0055161;
-	  this.A[7] = 0.0026906;
-	  this.A[8] = -0.001333;
-	  this.A[9] = 0.00067;
-	  this.A[10] = -0.00034;
-
-	  this.B_re = [];
-	  this.B_im = [];
-	  this.B_re[1] = 0.7557853228;
-	  this.B_im[1] = 0;
-	  this.B_re[2] = 0.249204646;
-	  this.B_im[2] = 0.003371507;
-	  this.B_re[3] = -0.001541739;
-	  this.B_im[3] = 0.041058560;
-	  this.B_re[4] = -0.10162907;
-	  this.B_im[4] = 0.01727609;
-	  this.B_re[5] = -0.26623489;
-	  this.B_im[5] = -0.36249218;
-	  this.B_re[6] = -0.6870983;
-	  this.B_im[6] = -1.1651967;
-
-	  this.C_re = [];
-	  this.C_im = [];
-	  this.C_re[1] = 1.3231270439;
-	  this.C_im[1] = 0;
-	  this.C_re[2] = -0.577245789;
-	  this.C_im[2] = -0.007809598;
-	  this.C_re[3] = 0.508307513;
-	  this.C_im[3] = -0.112208952;
-	  this.C_re[4] = -0.15094762;
-	  this.C_im[4] = 0.18200602;
-	  this.C_re[5] = 1.01418179;
-	  this.C_im[5] = 1.64497696;
-	  this.C_re[6] = 1.9660549;
-	  this.C_im[6] = 2.5127645;
-
-	  this.D = [];
-	  this.D[1] = 1.5627014243;
-	  this.D[2] = 0.5185406398;
-	  this.D[3] = -0.03333098;
-	  this.D[4] = -0.1052906;
-	  this.D[5] = -0.0368594;
-	  this.D[6] = 0.007317;
-	  this.D[7] = 0.01220;
-	  this.D[8] = 0.00394;
-	  this.D[9] = -0.0013;
-	};
-
-	/**
-	    New Zealand Map Grid Forward  - long/lat to x/y
-	    long/lat in radians
-	  */
-	exports.forward = function(p) {
-	  var n;
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  var delta_lat = lat - this.lat0;
-	  var delta_lon = lon - this.long0;
-
-	  // 1. Calculate d_phi and d_psi    ...                          // and d_lambda
-	  // For this algorithm, delta_latitude is in seconds of arc x 10-5, so we need to scale to those units. Longitude is radians.
-	  var d_phi = delta_lat / SEC_TO_RAD * 1E-5;
-	  var d_lambda = delta_lon;
-	  var d_phi_n = 1; // d_phi^0
-
-	  var d_psi = 0;
-	  for (n = 1; n <= 10; n++) {
-	    d_phi_n = d_phi_n * d_phi;
-	    d_psi = d_psi + this.A[n] * d_phi_n;
-	  }
-
-	  // 2. Calculate theta
-	  var th_re = d_psi;
-	  var th_im = d_lambda;
-
-	  // 3. Calculate z
-	  var th_n_re = 1;
-	  var th_n_im = 0; // theta^0
-	  var th_n_re1;
-	  var th_n_im1;
-
-	  var z_re = 0;
-	  var z_im = 0;
-	  for (n = 1; n <= 6; n++) {
-	    th_n_re1 = th_n_re * th_re - th_n_im * th_im;
-	    th_n_im1 = th_n_im * th_re + th_n_re * th_im;
-	    th_n_re = th_n_re1;
-	    th_n_im = th_n_im1;
-	    z_re = z_re + this.B_re[n] * th_n_re - this.B_im[n] * th_n_im;
-	    z_im = z_im + this.B_im[n] * th_n_re + this.B_re[n] * th_n_im;
-	  }
-
-	  // 4. Calculate easting and northing
-	  p.x = (z_im * this.a) + this.x0;
-	  p.y = (z_re * this.a) + this.y0;
-
-	  return p;
-	};
-
-
-	/**
-	    New Zealand Map Grid Inverse  -  x/y to long/lat
-	  */
-	exports.inverse = function(p) {
-	  var n;
-	  var x = p.x;
-	  var y = p.y;
-
-	  var delta_x = x - this.x0;
-	  var delta_y = y - this.y0;
-
-	  // 1. Calculate z
-	  var z_re = delta_y / this.a;
-	  var z_im = delta_x / this.a;
-
-	  // 2a. Calculate theta - first approximation gives km accuracy
-	  var z_n_re = 1;
-	  var z_n_im = 0; // z^0
-	  var z_n_re1;
-	  var z_n_im1;
-
-	  var th_re = 0;
-	  var th_im = 0;
-	  for (n = 1; n <= 6; n++) {
-	    z_n_re1 = z_n_re * z_re - z_n_im * z_im;
-	    z_n_im1 = z_n_im * z_re + z_n_re * z_im;
-	    z_n_re = z_n_re1;
-	    z_n_im = z_n_im1;
-	    th_re = th_re + this.C_re[n] * z_n_re - this.C_im[n] * z_n_im;
-	    th_im = th_im + this.C_im[n] * z_n_re + this.C_re[n] * z_n_im;
-	  }
-
-	  // 2b. Iterate to refine the accuracy of the calculation
-	  //        0 iterations gives km accuracy
-	  //        1 iteration gives m accuracy -- good enough for most mapping applications
-	  //        2 iterations bives mm accuracy
-	  for (var i = 0; i < this.iterations; i++) {
-	    var th_n_re = th_re;
-	    var th_n_im = th_im;
-	    var th_n_re1;
-	    var th_n_im1;
-
-	    var num_re = z_re;
-	    var num_im = z_im;
-	    for (n = 2; n <= 6; n++) {
-	      th_n_re1 = th_n_re * th_re - th_n_im * th_im;
-	      th_n_im1 = th_n_im * th_re + th_n_re * th_im;
-	      th_n_re = th_n_re1;
-	      th_n_im = th_n_im1;
-	      num_re = num_re + (n - 1) * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
-	      num_im = num_im + (n - 1) * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
-	    }
-
-	    th_n_re = 1;
-	    th_n_im = 0;
-	    var den_re = this.B_re[1];
-	    var den_im = this.B_im[1];
-	    for (n = 2; n <= 6; n++) {
-	      th_n_re1 = th_n_re * th_re - th_n_im * th_im;
-	      th_n_im1 = th_n_im * th_re + th_n_re * th_im;
-	      th_n_re = th_n_re1;
-	      th_n_im = th_n_im1;
-	      den_re = den_re + n * (this.B_re[n] * th_n_re - this.B_im[n] * th_n_im);
-	      den_im = den_im + n * (this.B_im[n] * th_n_re + this.B_re[n] * th_n_im);
-	    }
-
-	    // Complex division
-	    var den2 = den_re * den_re + den_im * den_im;
-	    th_re = (num_re * den_re + num_im * den_im) / den2;
-	    th_im = (num_im * den_re - num_re * den_im) / den2;
-	  }
-
-	  // 3. Calculate d_phi              ...                                    // and d_lambda
-	  var d_psi = th_re;
-	  var d_lambda = th_im;
-	  var d_psi_n = 1; // d_psi^0
-
-	  var d_phi = 0;
-	  for (n = 1; n <= 9; n++) {
-	    d_psi_n = d_psi_n * d_psi;
-	    d_phi = d_phi + this.D[n] * d_psi_n;
-	  }
-
-	  // 4. Calculate latitude and longitude
-	  // d_phi is calcuated in second of arc * 10^-5, so we need to scale back to radians. d_lambda is in radians.
-	  var lat = this.lat0 + (d_phi * SEC_TO_RAD * 1E5);
-	  var lon = this.long0 + d_lambda;
-
-	  p.x = lon;
-	  p.y = lat;
-
-	  return p;
-	};
-	exports.names = ["New_Zealand_Map_Grid", "nzmg"];
-
-/***/ }),
-/* 77 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	/*
-	  reference
-	    "New Equal-Area Map Projections for Noncircular Regions", John P. Snyder,
-	    The American Cartographer, Vol 15, No. 4, October 1988, pp. 341-355.
-	  */
-
-
-	/* Initialize the Miller Cylindrical projection
-	  -------------------------------------------*/
-	exports.init = function() {
-	  //no-op
-	};
-
-
-	/* Miller Cylindrical forward equations--mapping lat,long to x,y
-	    ------------------------------------------------------------*/
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  /* Forward equations
-	      -----------------*/
-	  var dlon = adjust_lon(lon - this.long0);
-	  var x = this.x0 + this.a * dlon;
-	  var y = this.y0 + this.a * Math.log(Math.tan((Math.PI / 4) + (lat / 2.5))) * 1.25;
-
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	/* Miller Cylindrical inverse equations--mapping x,y to lat/long
-	    ------------------------------------------------------------*/
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-
-	  var lon = adjust_lon(this.long0 + p.x / this.a);
-	  var lat = 2.5 * (Math.atan(Math.exp(0.8 * p.y / this.a)) - Math.PI / 4);
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["Miller_Cylindrical", "mill"];
-
-
-/***/ }),
-/* 78 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var adjust_lat = __webpack_require__(65);
-	var pj_enfn = __webpack_require__(45);
-	var MAX_ITER = 20;
-	var pj_mlfn = __webpack_require__(46);
-	var pj_inv_mlfn = __webpack_require__(47);
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	var asinz = __webpack_require__(70);
-	exports.init = function() {
-	  /* Place parameters in static storage for common use
-	    -------------------------------------------------*/
-
-
-	  if (!this.sphere) {
-	    this.en = pj_enfn(this.es);
-	  }
-	  else {
-	    this.n = 1;
-	    this.m = 0;
-	    this.es = 0;
-	    this.C_y = Math.sqrt((this.m + 1) / this.n);
-	    this.C_x = this.C_y / (this.m + 1);
-	  }
-
-	};
-
-	/* Sinusoidal forward equations--mapping lat,long to x,y
-	  -----------------------------------------------------*/
-	exports.forward = function(p) {
-	  var x, y;
-	  var lon = p.x;
-	  var lat = p.y;
-	  /* Forward equations
-	    -----------------*/
-	  lon = adjust_lon(lon - this.long0);
-
-	  if (this.sphere) {
-	    if (!this.m) {
-	      lat = this.n !== 1 ? Math.asin(this.n * Math.sin(lat)) : lat;
-	    }
-	    else {
-	      var k = this.n * Math.sin(lat);
-	      for (var i = MAX_ITER; i; --i) {
-	        var V = (this.m * lat + Math.sin(lat) - k) / (this.m + Math.cos(lat));
-	        lat -= V;
-	        if (Math.abs(V) < EPSLN) {
-	          break;
-	        }
-	      }
-	    }
-	    x = this.a * this.C_x * lon * (this.m + Math.cos(lat));
-	    y = this.a * this.C_y * lat;
-
-	  }
-	  else {
-
-	    var s = Math.sin(lat);
-	    var c = Math.cos(lat);
-	    y = this.a * pj_mlfn(lat, s, c, this.en);
-	    x = this.a * lon * c / Math.sqrt(1 - this.es * s * s);
-	  }
-
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var lat, temp, lon, s;
-
-	  p.x -= this.x0;
-	  lon = p.x / this.a;
-	  p.y -= this.y0;
-	  lat = p.y / this.a;
-
-	  if (this.sphere) {
-	    lat /= this.C_y;
-	    lon = lon / (this.C_x * (this.m + Math.cos(lat)));
-	    if (this.m) {
-	      lat = asinz((this.m * lat + Math.sin(lat)) / this.n);
-	    }
-	    else if (this.n !== 1) {
-	      lat = asinz(Math.sin(lat) / this.n);
-	    }
-	    lon = adjust_lon(lon + this.long0);
-	    lat = adjust_lat(lat);
-	  }
-	  else {
-	    lat = pj_inv_mlfn(p.y / this.a, this.es, this.en);
-	    s = Math.abs(lat);
-	    if (s < HALF_PI) {
-	      s = Math.sin(lat);
-	      temp = this.long0 + p.x * Math.sqrt(1 - this.es * s * s) / (this.a * Math.cos(lat));
-	      //temp = this.long0 + p.x / (this.a * Math.cos(lat));
-	      lon = adjust_lon(temp);
-	    }
-	    else if ((s - EPSLN) < HALF_PI) {
-	      lon = this.long0;
-	    }
-	  }
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["Sinusoidal", "sinu"];
-
-/***/ }),
-/* 79 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var EPSLN = 1.0e-10;
-	exports.init = function() {};
-
-	/* Mollweide forward equations--mapping lat,long to x,y
-	    ----------------------------------------------------*/
-	exports.forward = function(p) {
-
-	  /* Forward equations
-	      -----------------*/
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  var delta_lon = adjust_lon(lon - this.long0);
-	  var theta = lat;
-	  var con = Math.PI * Math.sin(lat);
-
-	  /* Iterate using the Newton-Raphson method to find theta
-	      -----------------------------------------------------*/
-	  for (var i = 0; true; i++) {
-	    var delta_theta = -(theta + Math.sin(theta) - con) / (1 + Math.cos(theta));
-	    theta += delta_theta;
-	    if (Math.abs(delta_theta) < EPSLN) {
-	      break;
-	    }
-	  }
-	  theta /= 2;
-
-	  /* If the latitude is 90 deg, force the x coordinate to be "0 + false easting"
-	       this is done here because of precision problems with "cos(theta)"
-	       --------------------------------------------------------------------------*/
-	  if (Math.PI / 2 - Math.abs(lat) < EPSLN) {
-	    delta_lon = 0;
-	  }
-	  var x = 0.900316316158 * this.a * delta_lon * Math.cos(theta) + this.x0;
-	  var y = 1.4142135623731 * this.a * Math.sin(theta) + this.y0;
-
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	exports.inverse = function(p) {
-	  var theta;
-	  var arg;
-
-	  /* Inverse equations
-	      -----------------*/
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  arg = p.y / (1.4142135623731 * this.a);
-
-	  /* Because of division by zero problems, 'arg' can not be 1.  Therefore
-	       a number very close to one is used instead.
-	       -------------------------------------------------------------------*/
-	  if (Math.abs(arg) > 0.999999999999) {
-	    arg = 0.999999999999;
-	  }
-	  theta = Math.asin(arg);
-	  var lon = adjust_lon(this.long0 + (p.x / (0.900316316158 * this.a * Math.cos(theta))));
-	  if (lon < (-Math.PI)) {
-	    lon = -Math.PI;
-	  }
-	  if (lon > Math.PI) {
-	    lon = Math.PI;
-	  }
-	  arg = (2 * theta + Math.sin(2 * theta)) / Math.PI;
-	  if (Math.abs(arg) > 1) {
-	    arg = 1;
-	  }
-	  var lat = Math.asin(arg);
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["Mollweide", "moll"];
-
-
-/***/ }),
-/* 80 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var e0fn = __webpack_require__(60);
-	var e1fn = __webpack_require__(61);
-	var e2fn = __webpack_require__(62);
-	var e3fn = __webpack_require__(63);
-	var msfnz = __webpack_require__(25);
-	var mlfn = __webpack_require__(59);
-	var adjust_lon = __webpack_require__(26);
-	var adjust_lat = __webpack_require__(65);
-	var imlfn = __webpack_require__(66);
-	var EPSLN = 1.0e-10;
-	exports.init = function() {
-
-	  /* Place parameters in static storage for common use
-	      -------------------------------------------------*/
-	  // Standard Parallels cannot be equal and on opposite sides of the equator
-	  if (Math.abs(this.lat1 + this.lat2) < EPSLN) {
-	    return;
-	  }
-	  this.lat2 = this.lat2 || this.lat1;
-	  this.temp = this.b / this.a;
-	  this.es = 1 - Math.pow(this.temp, 2);
-	  this.e = Math.sqrt(this.es);
-	  this.e0 = e0fn(this.es);
-	  this.e1 = e1fn(this.es);
-	  this.e2 = e2fn(this.es);
-	  this.e3 = e3fn(this.es);
-
-	  this.sinphi = Math.sin(this.lat1);
-	  this.cosphi = Math.cos(this.lat1);
-
-	  this.ms1 = msfnz(this.e, this.sinphi, this.cosphi);
-	  this.ml1 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat1);
-
-	  if (Math.abs(this.lat1 - this.lat2) < EPSLN) {
-	    this.ns = this.sinphi;
-	  }
-	  else {
-	    this.sinphi = Math.sin(this.lat2);
-	    this.cosphi = Math.cos(this.lat2);
-	    this.ms2 = msfnz(this.e, this.sinphi, this.cosphi);
-	    this.ml2 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat2);
-	    this.ns = (this.ms1 - this.ms2) / (this.ml2 - this.ml1);
-	  }
-	  this.g = this.ml1 + this.ms1 / this.ns;
-	  this.ml0 = mlfn(this.e0, this.e1, this.e2, this.e3, this.lat0);
-	  this.rh = this.a * (this.g - this.ml0);
-	};
-
-
-	/* Equidistant Conic forward equations--mapping lat,long to x,y
-	  -----------------------------------------------------------*/
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var rh1;
-
-	  /* Forward equations
-	      -----------------*/
-	  if (this.sphere) {
-	    rh1 = this.a * (this.g - lat);
-	  }
-	  else {
-	    var ml = mlfn(this.e0, this.e1, this.e2, this.e3, lat);
-	    rh1 = this.a * (this.g - ml);
-	  }
-	  var theta = this.ns * adjust_lon(lon - this.long0);
-	  var x = this.x0 + rh1 * Math.sin(theta);
-	  var y = this.y0 + this.rh - rh1 * Math.cos(theta);
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	/* Inverse equations
-	  -----------------*/
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y = this.rh - p.y + this.y0;
-	  var con, rh1, lat, lon;
-	  if (this.ns >= 0) {
-	    rh1 = Math.sqrt(p.x * p.x + p.y * p.y);
-	    con = 1;
-	  }
-	  else {
-	    rh1 = -Math.sqrt(p.x * p.x + p.y * p.y);
-	    con = -1;
-	  }
-	  var theta = 0;
-	  if (rh1 !== 0) {
-	    theta = Math.atan2(con * p.x, con * p.y);
-	  }
-
-	  if (this.sphere) {
-	    lon = adjust_lon(this.long0 + theta / this.ns);
-	    lat = adjust_lat(this.g - rh1 / this.a);
-	    p.x = lon;
-	    p.y = lat;
-	    return p;
-	  }
-	  else {
-	    var ml = this.g - rh1 / this.a;
-	    lat = imlfn(ml, this.e0, this.e1, this.e2, this.e3);
-	    lon = adjust_lon(this.long0 + theta / this.ns);
-	    p.x = lon;
-	    p.y = lat;
-	    return p;
-	  }
-
-	};
-	exports.names = ["Equidistant_Conic", "eqdc"];
-
-
-/***/ }),
-/* 81 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	var asinz = __webpack_require__(70);
-	/* Initialize the Van Der Grinten projection
-	  ----------------------------------------*/
-	exports.init = function() {
-	  //this.R = 6370997; //Radius of earth
-	  this.R = this.a;
-	};
-
-	exports.forward = function(p) {
-
-	  var lon = p.x;
-	  var lat = p.y;
-
-	  /* Forward equations
-	    -----------------*/
-	  var dlon = adjust_lon(lon - this.long0);
-	  var x, y;
-
-	  if (Math.abs(lat) <= EPSLN) {
-	    x = this.x0 + this.R * dlon;
-	    y = this.y0;
-	  }
-	  var theta = asinz(2 * Math.abs(lat / Math.PI));
-	  if ((Math.abs(dlon) <= EPSLN) || (Math.abs(Math.abs(lat) - HALF_PI) <= EPSLN)) {
-	    x = this.x0;
-	    if (lat >= 0) {
-	      y = this.y0 + Math.PI * this.R * Math.tan(0.5 * theta);
-	    }
-	    else {
-	      y = this.y0 + Math.PI * this.R * -Math.tan(0.5 * theta);
-	    }
-	    //  return(OK);
-	  }
-	  var al = 0.5 * Math.abs((Math.PI / dlon) - (dlon / Math.PI));
-	  var asq = al * al;
-	  var sinth = Math.sin(theta);
-	  var costh = Math.cos(theta);
-
-	  var g = costh / (sinth + costh - 1);
-	  var gsq = g * g;
-	  var m = g * (2 / sinth - 1);
-	  var msq = m * m;
-	  var con = Math.PI * this.R * (al * (g - msq) + Math.sqrt(asq * (g - msq) * (g - msq) - (msq + asq) * (gsq - msq))) / (msq + asq);
-	  if (dlon < 0) {
-	    con = -con;
-	  }
-	  x = this.x0 + con;
-	  //con = Math.abs(con / (Math.PI * this.R));
-	  var q = asq + g;
-	  con = Math.PI * this.R * (m * q - al * Math.sqrt((msq + asq) * (asq + 1) - q * q)) / (msq + asq);
-	  if (lat >= 0) {
-	    //y = this.y0 + Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
-	    y = this.y0 + con;
-	  }
-	  else {
-	    //y = this.y0 - Math.PI * this.R * Math.sqrt(1 - con * con - 2 * al * con);
-	    y = this.y0 - con;
-	  }
-	  p.x = x;
-	  p.y = y;
-	  return p;
-	};
-
-	/* Van Der Grinten inverse equations--mapping x,y to lat/long
-	  ---------------------------------------------------------*/
-	exports.inverse = function(p) {
-	  var lon, lat;
-	  var xx, yy, xys, c1, c2, c3;
-	  var a1;
-	  var m1;
-	  var con;
-	  var th1;
-	  var d;
-
-	  /* inverse equations
-	    -----------------*/
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  con = Math.PI * this.R;
-	  xx = p.x / con;
-	  yy = p.y / con;
-	  xys = xx * xx + yy * yy;
-	  c1 = -Math.abs(yy) * (1 + xys);
-	  c2 = c1 - 2 * yy * yy + xx * xx;
-	  c3 = -2 * c1 + 1 + 2 * yy * yy + xys * xys;
-	  d = yy * yy / c3 + (2 * c2 * c2 * c2 / c3 / c3 / c3 - 9 * c1 * c2 / c3 / c3) / 27;
-	  a1 = (c1 - c2 * c2 / 3 / c3) / c3;
-	  m1 = 2 * Math.sqrt(-a1 / 3);
-	  con = ((3 * d) / a1) / m1;
-	  if (Math.abs(con) > 1) {
-	    if (con >= 0) {
-	      con = 1;
-	    }
-	    else {
-	      con = -1;
-	    }
-	  }
-	  th1 = Math.acos(con) / 3;
-	  if (p.y >= 0) {
-	    lat = (-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
-	  }
-	  else {
-	    lat = -(-m1 * Math.cos(th1 + Math.PI / 3) - c2 / 3 / c3) * Math.PI;
-	  }
-
-	  if (Math.abs(xx) < EPSLN) {
-	    lon = this.long0;
-	  }
-	  else {
-	    lon = adjust_lon(this.long0 + Math.PI * (xys - 1 + Math.sqrt(1 + 2 * (xx * xx - yy * yy) + xys * xys)) / 2 / xx);
-	  }
-
-	  p.x = lon;
-	  p.y = lat;
-	  return p;
-	};
-	exports.names = ["Van_der_Grinten_I", "VanDerGrinten", "vandg"];
-
-/***/ }),
-/* 82 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var adjust_lon = __webpack_require__(26);
-	var HALF_PI = Math.PI/2;
-	var EPSLN = 1.0e-10;
-	var mlfn = __webpack_require__(59);
-	var e0fn = __webpack_require__(60);
-	var e1fn = __webpack_require__(61);
-	var e2fn = __webpack_require__(62);
-	var e3fn = __webpack_require__(63);
-	var gN = __webpack_require__(64);
-	var asinz = __webpack_require__(70);
-	var imlfn = __webpack_require__(66);
-	exports.init = function() {
-	  this.sin_p12 = Math.sin(this.lat0);
-	  this.cos_p12 = Math.cos(this.lat0);
-	};
-
-	exports.forward = function(p) {
-	  var lon = p.x;
-	  var lat = p.y;
-	  var sinphi = Math.sin(p.y);
-	  var cosphi = Math.cos(p.y);
-	  var dlon = adjust_lon(lon - this.long0);
-	  var e0, e1, e2, e3, Mlp, Ml, tanphi, Nl1, Nl, psi, Az, G, H, GH, Hs, c, kp, cos_c, s, s2, s3, s4, s5;
-	  if (this.sphere) {
-	    if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
-	      //North Pole case
-	      p.x = this.x0 + this.a * (HALF_PI - lat) * Math.sin(dlon);
-	      p.y = this.y0 - this.a * (HALF_PI - lat) * Math.cos(dlon);
-	      return p;
-	    }
-	    else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
-	      //South Pole case
-	      p.x = this.x0 + this.a * (HALF_PI + lat) * Math.sin(dlon);
-	      p.y = this.y0 + this.a * (HALF_PI + lat) * Math.cos(dlon);
-	      return p;
-	    }
-	    else {
-	      //default case
-	      cos_c = this.sin_p12 * sinphi + this.cos_p12 * cosphi * Math.cos(dlon);
-	      c = Math.acos(cos_c);
-	      kp = c / Math.sin(c);
-	      p.x = this.x0 + this.a * kp * cosphi * Math.sin(dlon);
-	      p.y = this.y0 + this.a * kp * (this.cos_p12 * sinphi - this.sin_p12 * cosphi * Math.cos(dlon));
-	      return p;
-	    }
-	  }
-	  else {
-	    e0 = e0fn(this.es);
-	    e1 = e1fn(this.es);
-	    e2 = e2fn(this.es);
-	    e3 = e3fn(this.es);
-	    if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
-	      //North Pole case
-	      Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
-	      Ml = this.a * mlfn(e0, e1, e2, e3, lat);
-	      p.x = this.x0 + (Mlp - Ml) * Math.sin(dlon);
-	      p.y = this.y0 - (Mlp - Ml) * Math.cos(dlon);
-	      return p;
-	    }
-	    else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
-	      //South Pole case
-	      Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
-	      Ml = this.a * mlfn(e0, e1, e2, e3, lat);
-	      p.x = this.x0 + (Mlp + Ml) * Math.sin(dlon);
-	      p.y = this.y0 + (Mlp + Ml) * Math.cos(dlon);
-	      return p;
-	    }
-	    else {
-	      //Default case
-	      tanphi = sinphi / cosphi;
-	      Nl1 = gN(this.a, this.e, this.sin_p12);
-	      Nl = gN(this.a, this.e, sinphi);
-	      psi = Math.atan((1 - this.es) * tanphi + this.es * Nl1 * this.sin_p12 / (Nl * cosphi));
-	      Az = Math.atan2(Math.sin(dlon), this.cos_p12 * Math.tan(psi) - this.sin_p12 * Math.cos(dlon));
-	      if (Az === 0) {
-	        s = Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
-	      }
-	      else if (Math.abs(Math.abs(Az) - Math.PI) <= EPSLN) {
-	        s = -Math.asin(this.cos_p12 * Math.sin(psi) - this.sin_p12 * Math.cos(psi));
-	      }
-	      else {
-	        s = Math.asin(Math.sin(dlon) * Math.cos(psi) / Math.sin(Az));
-	      }
-	      G = this.e * this.sin_p12 / Math.sqrt(1 - this.es);
-	      H = this.e * this.cos_p12 * Math.cos(Az) / Math.sqrt(1 - this.es);
-	      GH = G * H;
-	      Hs = H * H;
-	      s2 = s * s;
-	      s3 = s2 * s;
-	      s4 = s3 * s;
-	      s5 = s4 * s;
-	      c = Nl1 * s * (1 - s2 * Hs * (1 - Hs) / 6 + s3 / 8 * GH * (1 - 2 * Hs) + s4 / 120 * (Hs * (4 - 7 * Hs) - 3 * G * G * (1 - 7 * Hs)) - s5 / 48 * GH);
-	      p.x = this.x0 + c * Math.sin(Az);
-	      p.y = this.y0 + c * Math.cos(Az);
-	      return p;
-	    }
-	  }
-
-
-	};
-
-	exports.inverse = function(p) {
-	  p.x -= this.x0;
-	  p.y -= this.y0;
-	  var rh, z, sinz, cosz, lon, lat, con, e0, e1, e2, e3, Mlp, M, N1, psi, Az, cosAz, tmp, A, B, D, Ee, F;
-	  if (this.sphere) {
-	    rh = Math.sqrt(p.x * p.x + p.y * p.y);
-	    if (rh > (2 * HALF_PI * this.a)) {
-	      return;
-	    }
-	    z = rh / this.a;
-
-	    sinz = Math.sin(z);
-	    cosz = Math.cos(z);
-
-	    lon = this.long0;
-	    if (Math.abs(rh) <= EPSLN) {
-	      lat = this.lat0;
-	    }
-	    else {
-	      lat = asinz(cosz * this.sin_p12 + (p.y * sinz * this.cos_p12) / rh);
-	      con = Math.abs(this.lat0) - HALF_PI;
-	      if (Math.abs(con) <= EPSLN) {
-	        if (this.lat0 >= 0) {
-	          lon = adjust_lon(this.long0 + Math.atan2(p.x, - p.y));
-	        }
-	        else {
-	          lon = adjust_lon(this.long0 - Math.atan2(-p.x, p.y));
-	        }
-	      }
-	      else {
-	        /*con = cosz - this.sin_p12 * Math.sin(lat);
-	        if ((Math.abs(con) < EPSLN) && (Math.abs(p.x) < EPSLN)) {
-	          //no-op, just keep the lon value as is
-	        } else {
-	          var temp = Math.atan2((p.x * sinz * this.cos_p12), (con * rh));
-	          lon = adjust_lon(this.long0 + Math.atan2((p.x * sinz * this.cos_p12), (con * rh)));
-	        }*/
-	        lon = adjust_lon(this.long0 + Math.atan2(p.x * sinz, rh * this.cos_p12 * cosz - p.y * this.sin_p12 * sinz));
-	      }
-	    }
-
-	    p.x = lon;
-	    p.y = lat;
-	    return p;
-	  }
-	  else {
-	    e0 = e0fn(this.es);
-	    e1 = e1fn(this.es);
-	    e2 = e2fn(this.es);
-	    e3 = e3fn(this.es);
-	    if (Math.abs(this.sin_p12 - 1) <= EPSLN) {
-	      //North pole case
-	      Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
-	      rh = Math.sqrt(p.x * p.x + p.y * p.y);
-	      M = Mlp - rh;
-	      lat = imlfn(M / this.a, e0, e1, e2, e3);
-	      lon = adjust_lon(this.long0 + Math.atan2(p.x, - 1 * p.y));
-	      p.x = lon;
-	      p.y = lat;
-	      return p;
-	    }
-	    else if (Math.abs(this.sin_p12 + 1) <= EPSLN) {
-	      //South pole case
-	      Mlp = this.a * mlfn(e0, e1, e2, e3, HALF_PI);
-	      rh = Math.sqrt(p.x * p.x + p.y * p.y);
-	      M = rh - Mlp;
-
-	      lat = imlfn(M / this.a, e0, e1, e2, e3);
-	      lon = adjust_lon(this.long0 + Math.atan2(p.x, p.y));
-	      p.x = lon;
-	      p.y = lat;
-	      return p;
-	    }
-	    else {
-	      //default case
-	      rh = Math.sqrt(p.x * p.x + p.y * p.y);
-	      Az = Math.atan2(p.x, p.y);
-	      N1 = gN(this.a, this.e, this.sin_p12);
-	      cosAz = Math.cos(Az);
-	      tmp = this.e * this.cos_p12 * cosAz;
-	      A = -tmp * tmp / (1 - this.es);
-	      B = 3 * this.es * (1 - A) * this.sin_p12 * this.cos_p12 * cosAz / (1 - this.es);
-	      D = rh / N1;
-	      Ee = D - A * (1 + A) * Math.pow(D, 3) / 6 - B * (1 + 3 * A) * Math.pow(D, 4) / 24;
-	      F = 1 - A * Ee * Ee / 2 - D * Ee * Ee * Ee / 6;
-	      psi = Math.asin(this.sin_p12 * Math.cos(Ee) + this.cos_p12 * Math.sin(Ee) * cosAz);
-	      lon = adjust_lon(this.long0 + Math.asin(Math.sin(Az) * Math.sin(Ee) / Math.cos(psi)));
-	      lat = Math.atan((1 - this.es * F * this.sin_p12 / Math.sin(psi)) * Math.tan(psi) / (1 - this.es));
-	      p.x = lon;
-	      p.y = lat;
-	      return p;
-	    }
-	  }
-
-	};
-	exports.names = ["Azimuthal_Equidistant", "aeqd"];
-
-
-/***/ }),
-/* 83 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-
-	var throttle = __webpack_require__(84);
-	var mockVGL = __webpack_require__(85);
-	var DistanceGrid = __webpack_require__(204);
-	var ClusterGroup = __webpack_require__(205);
-
-	var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
-
-	var m_timingData = {},
-	    m_timingKeepRecent = 200,
-	    m_threshold = 15,
-	    m_originalRequestAnimationFrame;
-
-	/**
-	 * @typedef {object} geo.util.cssColorConversionRecord
-	 * @property {string} name The name of the color conversion.
-	 * @property {RegEx} regex A regex that, if it matches the color string, will
-	 *      cause the process function to be invoked.
-	 * @property {function} process A function that takes (`color`, `match`) with
-	 *      the original color string and the results of matching the regex using
-	 *      the regex's `exec` function.  It outputs a {@link geo.geoColorObject}
-	 *      color object or the original color string if there is still a parsing
-	 *      failure.
-	 */
-
-	/**
-	 * Takes a variable number of arguments and returns the first numeric value
-	 * it finds.
-	 *
-	 * @param {...*} var_args Any number of arguments.
-	 * @returns {number} The first numeric argument, or `undefined` if there are no
-	 *      numeric arguments.
-	 * @private
-	 */
-	function setNumeric() {
-	  var i;
-	  for (i = 0; i < arguments.length; i += 1) {
-	    if (isFinite(arguments[i])) {
-	      return arguments[i];
-	    }
-	  }
-	}
-
-	/**
-	 * Contains utility classes and methods used by geojs.
-	 * @namespace geo.util
-	 */
-	var util = module.exports = {
-	  DistanceGrid: DistanceGrid,
-	  ClusterGroup: ClusterGroup,
-
-	  /**
-	   * Check if a point is inside of a polygon.
-	   * Algorithm description:
-	   *   http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html
-	   * The point and polygon must be in the same coordinate system.
-	   *
-	   * @param {geo.point2D} point The test point.
-	   * @param {geo.point2D[]} outer The outer boundary of the polygon.
-	   * @param {Array.<geo.point2D[]>} [inner] A list of inner boundaries
-	   *    (holes).
-	   * @param {object} [range] If specified, this is the extent of the outer
-	   *    polygon and is used for early detection.
-	   * @param {geo.point2D} range.min The minimum value of coordinates in
-	   *    the outer polygon.
-	   * @param {geo.point2D} range.max The maximum value of coordinates in
-	   *    the outer polygon.
-	   * @returns {boolean} `true` if the point is inside or on the border of the
-	   *    polygon.
-	   * @memberof geo.util
-	   */
-	  pointInPolygon: function (point, outer, inner, range) {
-	    var inside = false, n = outer.length, i, j;
-
-	    if (range && range.min && range.max) {
-	      if (point.x < range.min.x || point.y < range.min.y ||
-	          point.x > range.max.x || point.y > range.max.y) {
-	        return;
-	      }
-	    }
-
-	    if (n < 3) {
-	      // we need 3 coordinates for this to make sense
-	      return false;
-	    }
-
-	    for (i = 0, j = n - 1; i < n; j = i, i += 1) {
-	      if (((outer[i].y > point.y) !== (outer[j].y > point.y)) &&
-	          (point.x < (outer[j].x - outer[i].x) *
-	          (point.y - outer[i].y) / (outer[j].y - outer[i].y) + outer[i].x)) {
-	        inside = !inside;
-	      }
-	    }
-
-	    if (inner && inside) {
-	      (inner || []).forEach(function (hole) {
-	        inside = inside && !util.pointInPolygon(point, hole);
-	      });
-	    }
-
-	    return inside;
-	  },
-
-	  /**
-	   * Return a point in the basis of the triangle.  If the point is located on
-	   * a vertex of the triangle, it will be at `vert0`: (0, 0), `vert1`:
-	   * (1, 0), `vert2`: (0, 1).  If it is within the triangle, its coordinates
-	   * will be 0 <= x <= 1, 0 <= y <= 1, x + y <= 1.  The point and vertices
-	   * must be in the same coordinate system.
-	   *
-	   * @param {geo.point2D} point The point to convert.
-	   * @param {geo.point2D} vert0 Vertex 0 of the triangle.
-	   * @param {geo.point2D} vert1 Vertex 1 (x direction) of the triangle.
-	   * @param {geo.point2D} vert2 Vertex 2 (y direction) of the triangle.
-	   * @returns {geo.point2D} The point in the triangle basis, or `undefined`
-	   *    if the triangle is degenerate.
-	   * @memberof geo.util
-	   */
-	  pointTo2DTriangleBasis: function (point, vert0, vert1, vert2) {
-	    var a = vert1.x - vert0.x,
-	        b = vert2.x - vert0.x,
-	        c = vert1.y - vert0.y,
-	        d = vert2.y - vert0.y,
-	        x = point.x - vert0.x,
-	        y = point.y - vert0.y,
-	        det = a * d - b * c;
-	    if (det) {
-	      return {x: (x * d - y * b) / det, y: (x * -c + y * a) / det};
-	    }
-	  },
-
-	  /**
-	   * Check if an object an HTML Image element that is fully loaded.
-	   *
-	   * @param {object} img an object that might be an HTML Image element.
-	   * @param {boolean} [allowFailedImage] If `true`, an image element that has
-	   *     a source and has failed to load is also considered 'ready' in the
-	   *     sense that it isn't expected to change to a better state.
-	   * @returns {boolean} `true` if this is an image that is ready.
-	   * @memberof geo.util
-	   */
-	  isReadyImage: function (img, allowFailedImage) {
-	    if (img instanceof Image && img.complete && img.src) {
-	      if ((img.naturalWidth && img.naturalHeight) || allowFailedImage) {
-	        return true;
-	      }
-	    }
-	    return false;
-	  },
-
-	  /**
-	   * Test if an object is a function.
-	   *
-	   * @param {object} f An object that might be a function.
-	   * @returns {boolean} `true` if the object is a function.
-	   * @memberof geo.util
-	   */
-	  isFunction: function (f) {
-	    return typeof f === 'function';
-	  },
-
-	  /**
-	   * Return a function.  If the supplied object is a function, return it.
-	   * Otherwise, return a function that returns the argument.
-	   *
-	   * @param {object} f An object that might be a function.
-	   * @returns {function} A function.  Either `f` or a function that returns
-	   *    `f`.
-	   * @memberof geo.util
-	   */
-	  ensureFunction: function (f) {
-	    if (util.isFunction(f)) {
-	      return f;
-	    } else {
-	      return function () { return f; };
-	    }
-	  },
-
-	  /**
-	   * Check if a value coerces to a number that is finite, not a NaN, and not
-	   * `null`, `false`, or the empty string.
-	   *
-	   * @param {object} val The value to check.
-	   * @returns {boolean} True if `val` is a non-null, non-false, finite number.
-	   */
-	  isNonNullFinite: function (val) {
-	    return isFinite(val) && val !== null && val !== false && val !== '';
-	  },
-
-	  /**
-	   * Return a random string of length n || 8.  The string consists of
-	   * mixed-case ASCII alphanumerics.
-	   *
-	   * @param {number} [n=8] The length of the string to return.
-	   * @returns {string} A string of random characters.
-	   * @memberof geo.util
-	   */
-	  randomString: function (n) {
-	    var s, i, r;
-	    n = n || 8;
-	    s = '';
-	    for (i = 0; i < n; i += 1) {
-	      r = Math.floor(Math.random() * chars.length);
-	      s += chars.substring(r, r + 1);
-	    }
-	    return s;
-	  },
-
-	  /**
-	   * Convert a color to a standard rgb object.  Allowed inputs:
-	   *   - rgb object with optional 'a' (alpha) value.
-	   *   - css color name
-	   *   - #rrggbb, #rrggbbaa, #rgb, #rgba hexadecimal colors
-	   *   - rgb(), rgba(), hsl(), and hsla() css colors
-	   *   - transparent
-	   * The output object always contains r, g, b on a scale of [0-1].  If an
-	   * alpha value is specified, the output will also contain an 'a' value on a
-	   * scale of [0-1].  Objects already in rgb format are not checked to make
-	   * sure that all parameters are in the range of [0-1], but string inputs
-	   * are so validated.
-	   *
-	   * @param {geo.geoColor} color Any valid color input.
-	   * @returns {geo.geoColorObject} An rgb color object, possibly with an 'a'
-	   *    value.  If the input cannot be converted to a valid color, the input
-	   *    value is returned.
-	   * @memberof geo.util
-	   */
-	  convertColor: function (color) {
-	    if (color === undefined || color === null || (color.r !== undefined &&
-	        color.g !== undefined && color.b !== undefined)) {
-	      return color;
-	    }
-	    var opacity;
-	    if (typeof color === 'string') {
-	      var lowerColor = color.toLowerCase();
-	      if (util.cssColors.hasOwnProperty(lowerColor)) {
-	        color = util.cssColors[lowerColor];
-	      } else if (color.charAt(0) === '#') {
-	        if (color.length === 4 || color.length === 5) {
-	          /* interpret values of the form #rgb as #rrggbb and #rgba as
-	           * #rrggbbaa */
-	          if (color.length === 5) {
-	            opacity = parseInt(color.slice(4), 16) / 0xf;
-	          }
-	          color = parseInt(color.slice(1, 4), 16);
-	          color = (color & 0xf00) * 0x1100 + (color & 0xf0) * 0x110 + (color & 0xf) * 0x11;
-	        } else if (color.length === 7 || color.length === 9) {
-	          if (color.length === 9) {
-	            opacity = parseInt(color.slice(7), 16) / 0xff;
-	          }
-	          color = parseInt(color.slice(1, 7), 16);
-	        }
-	      } else if (lowerColor === 'transparent') {
-	        opacity = color = 0;
-	      } else if (lowerColor.indexOf('(') >= 0) {
-	        for (var idx = 0; idx < util.cssColorConversions.length; idx += 1) {
-	          var match = util.cssColorConversions[idx].regex.exec(lowerColor);
-	          if (match) {
-	            return util.cssColorConversions[idx].process(lowerColor, match);
-	          }
-	        }
-	      }
-	    }
-	    if (isFinite(color)) {
-	      color = {
-	        r: ((color & 0xff0000) >> 16) / 255,
-	        g: ((color & 0xff00) >> 8) / 255,
-	        b: ((color & 0xff)) / 255
-	      };
-	    }
-	    if (opacity !== undefined && color && color.r !== undefined) {
-	      color.a = opacity;
-	    }
-	    return color;
-	  },
-
-	  /**
-	   * Convert a color (possibly with opacity) and an optional opacity value to
-	   * a color object that always has opacity.  The opacity is guaranteed to be
-	   * within [0-1].  A valid color object is always returned.
-	   *
-	   * @param {geo.geoColor} [color] Any valid color input.  If an invalid value
-	   *    or no value is supplied, the `defaultColor` is used.
-	   * @param {number} [opacity=1] A value from [0-1].  This is multipled with
-	   *    the opacity from `color`.
-	   * @param {geo.geoColorObject} [defaultColor={r: 0, g: 0, b: 0}] The color
-	   *    to use if an invalid color is supplied.
-	   * @returns {geo.geoColorObject} An rgba color object.
-	   * @memberof geo.util
-	   */
-	  convertColorAndOpacity: function (color, opacity, defaultColor) {
-	    color = util.convertColor(color);
-	    if (!color || color.r === undefined || color.g === undefined || color.b === undefined) {
-	      color = util.convertColor(defaultColor || {r: 0, g: 0, b: 0});
-	    }
-	    if (!color || color.r === undefined || color.g === undefined || color.b === undefined) {
-	      color = {r: 0, g: 0, b: 0};
-	    }
-	    color = {
-	      r: isFinite(color.r) && color.r >= 0 ? (color.r <= 1 ? +color.r : 1) : 0,
-	      g: isFinite(color.g) && color.g >= 0 ? (color.g <= 1 ? +color.g : 1) : 0,
-	      b: isFinite(color.b) && color.b >= 0 ? (color.b <= 1 ? +color.b : 1) : 0,
-	      a: util.isNonNullFinite(color.a) && color.a >= 0 && color.a < 1 ? +color.a : 1
-	    };
-	    if (util.isNonNullFinite(opacity) && opacity < 1) {
-	      color.a = opacity <= 0 ? 0 : color.a * opacity;
-	    }
-	    return color;
-	  },
-
-	  /**
-	   * Convert a color to a six or eight digit hex value prefixed with #.
-	   *
-	   * @param {geo.geoColorObject} color The color object to convert.
-	   * @param {boolean} [allowAlpha] If truthy and `color` has a defined `a`
-	   *    value, include the alpha channel in the output.  If `'needed'`, only
-	   *    include the alpha channel if it is set and not 1.
-	   * @returns {string} A color string.
-	   * @memberof geo.util
-	   */
-	  convertColorToHex: function (color, allowAlpha) {
-	    var rgb = util.convertColor(color), value;
-	    if (!rgb.r && !rgb.g && !rgb.b) {
-	      value = '#000000';
-	    } else {
-	      value = '#' + ((1 << 24) + (Math.round(rgb.r * 255) << 16) +
-	                     (Math.round(rgb.g * 255) << 8) +
-	                      Math.round(rgb.b * 255)).toString(16).slice(1);
-	    }
-	    if (rgb.a !== undefined && allowAlpha && (rgb.a < 1 || allowAlpha !== 'needed')) {
-	      value += (256 + Math.round(rgb.a * 255)).toString(16).slice(1);
-	    }
-	    return value;
-	  },
-	  /**
-	   * Convert a color to a css rgba() value.
-	   *
-	   * @param {geo.geoColorObject} color The color object to convert.
-	   * @returns {string} A color string.
-	   * @memberof geo.util
-	   */
-	  convertColorToRGBA: function (color) {
-	    var rgb = util.convertColor(color);
-	    if (!rgb) {
-	      rgb = {r: 0, g: 0, b: 0};
-	    }
-	    if (!util.isNonNullFinite(rgb.a) || rgb.a > 1) {
-	      rgb.a = 1;
-	    }
-	    return 'rgba(' + Math.round(rgb.r * 255) + ', ' + Math.round(rgb.g * 255) +
-	           ', ' + Math.round(rgb.b * 255) + ', ' + +((+rgb.a).toFixed(5)) + ')';
-	  },
-
-	  /**
-	   * Normalize a coordinate object into {@link geo.geoPosition} form.  The
-	   * input can be a 2 or 3 element array or an object with a variety of
-	   * properties.
-	   *
-	   * @param {object|array} p The point to convert.
-	   * @returns {geo.geoPosition} The point as an object with `x`, `y`, and `z`
-	   *    properties.
-	   * @memberof geo.util
-	   */
-	  normalizeCoordinates: function (p) {
-	    p = p || {};
-	    if (Array.isArray(p)) {
-	      return {
-	        x: p[0],
-	        y: p[1],
-	        z: p[2] || 0
-	      };
-	    }
-	    return {
-	      x: setNumeric(
-	        p.x,
-	        p.longitude,
-	        p.lng,
-	        p.lon,
-	        0
-	      ),
-	      y: setNumeric(
-	        p.y,
-	        p.latitude,
-	        p.lat,
-	        0
-	      ),
-	      z: setNumeric(
-	        p.z,
-	        p.elevation,
-	        p.elev,
-	        p.height,
-	        0
-	      )
-	    };
-	  },
-
-	  /**
-	   * Compare two arrays and return if their contents are equal.
-	   * @param {array} a1 First array to compare.
-	   * @param {array} a2 Second array to compare.
-	   * @returns {boolean} `true` if the contents of the arrays are equal.
-	   * @memberof geo.util
-	   */
-	  compareArrays: function (a1, a2) {
-	    return (a1.length === a2.length && a1.every(function (el, idx) {
-	      return el === a2[idx];
-	    }));
-	  },
-
-	  /**
-	   * Create a `vec3` that is always an array.  This should only be used if it
-	   * will not be used in a WebGL context.  Plain arrays usually use 64-bit
-	   * float values, whereas `vec3` defaults to 32-bit floats.
-	   *
-	   * @returns {array} Zeroed-out vec3 compatible array.
-	   * @memberof geo.util
-	   */
-	  vec3AsArray: function () {
-	    return [0, 0, 0];
-	  },
-
-	  /**
-	   * Create a `mat3` that is always an array.  This should only be used if it
-	   * will not be used in a WebGL context.  Plain arrays usually use 64-bit
-	   * float values, whereas `mat3` defaults to 32-bit floats.
-	   *
-	   * @returns {array} Identity `mat3` compatible array.
-	   * @memberof geo.util
-	   */
-	  mat3AsArray: function () {
-	    return [
-	      1, 0, 0,
-	      0, 1, 0,
-	      0, 0, 1
-	    ];
-	  },
-
-	  /**
-	   * Create a `mat4` that is always an array.  This should only be used if it
-	   * will not be used in a WebGL context.  Plain arrays usually use 64-bit
-	   * float values, whereas `mat4` defaults to 32-bit floats.
-	   *
-	   * @returns {array} Identity `mat4` compatible array.
-	   * @memberof geo.util
-	   */
-	  mat4AsArray: function () {
-	    return [
-	      1, 0, 0, 0,
-	      0, 1, 0, 0,
-	      0, 0, 1, 0,
-	      0, 0, 0, 1
-	    ];
-	  },
-
-	  /**
-	   * Get a buffer for a vgl geometry source.  If a buffer already exists and
-	   * is the correct size, return it.  Otherwise, allocate a new buffer; any
-	   * data in an old buffer is discarded.
-	   *
-	   * @param {vgl.geometryData} geom The geometry to reference and modify.
-	   * @param {string} srcName The name of the source.
-	   * @param {number} len The number of elements for the array.
-	   * @returns {Float32Array} A buffer for the named source.
-	   * @memberof geo.util
-	   */
-	  getGeomBuffer: function (geom, srcName, len) {
-	    var src = geom.sourceByName(srcName), data;
-
-	    data = src.data();
-	    if (data instanceof Float32Array && data.length === len) {
-	      return data;
-	    }
-	    data = new Float32Array(len);
-	    src.setData(data);
-	    return data;
-	  },
-
-	  /**
-	   * Ensure that the input and modifiers properties of all actions are
-	   * objects, not plain strings.
-	   *
-	   * @param {geo.actionRecord[]} actions An array of actions to adjust as
-	   *    needed.
-	   * @memberof geo.util
-	   */
-	  adjustActions: function (actions) {
-	    var action, i;
-	    for (i = 0; i < actions.length; i += 1) {
-	      action = actions[i];
-	      if ($.type(action.input) === 'string') {
-	        var actionEvents = {};
-	        actionEvents[action.input] = true;
-	        action.input = actionEvents;
-	      }
-	      if (!action.modifiers) {
-	        action.modifiers = {};
-	      }
-	      if ($.type(action.modifiers) === 'string') {
-	        var actionModifiers = {};
-	        actionModifiers[action.modifiers] = true;
-	        action.modifiers = actionModifiers;
-	      }
-	    }
-	  },
-
-	  /**
-	   * Add an action to the list of handled actions.
-	   *
-	   * @param {geo.actionRecord[]} actions An array of actions to adjust as
-	   *    needed.
-	   * @param {geo.actionRecord} action An object defining the action.  Use
-	   *    `action`, `name`, and `owner` to make this entry distinct if it will
-	   *    need to be removed later.
-	   * @param {boolean} toEnd The action is added at the beginning of the
-	   *    actions list unless `toEnd` is `true`.  Earlier actions prevent later
-	   *    actions with the similar input and modifiers.
-	   * @memberof geo.util
-	   */
-	  addAction: function (actions, action, toEnd) {
-	    if (toEnd) {
-	      actions.push(action);
-	    } else {
-	      actions.unshift(action);
-	    }
-	    util.adjustActions(actions);
-	  },
-
-	  /**
-	   * Check if an action is in the actions list.  An action matches if the
-	   * `action`, `name`, and `owner` match.  A `null` or `undefined` value will
-	   * match all actions.  If using a {@link geo.actionRecord} object, this is
-	   * the same as passing (`action.action`, `action.name`, `action.owner`).
-	   *
-	   * @param {geo.actionRecord[]} actions An array of actions to search.
-	   * @param {geo.actionRecord|string} action Either an action object or the
-	   *    name of an action.
-	   * @param {string} [name] Optional name associated with the action.
-	   * @param {string} [owner] Optional owner associated with the action.
-	   * @returns {geo.actionRecord?} The first matching action or `null`.
-	   * @memberof geo.util
-	   */
-	  hasAction: function (actions, action, name, owner) {
-	    if (action && action.action) {
-	      name = action.name;
-	      owner = action.owner;
-	      action = action.action;
-	    }
-	    for (var i = 0; i < actions.length; i += 1) {
-	      if ((!action || actions[i].action === action) &&
-	          (!name || actions[i].name === name) &&
-	          (!owner || actions[i].owner === owner)) {
-	        return actions[i];
-	      }
-	    }
-	    return null;
-	  },
-
-	  /**
-	   * Remove all matching actions.  Actions are matched as with `hasAction`.
-	   *
-	   * @param {geo.actionRecord[]} actions An array of actions to adjust as
-	   *    needed.
-	   * @param {geo.actionRecord|string} action Either an action object or the
-	   *    name of an action.
-	   * @param {string} [name] Optional name associated with the action.
-	   * @param {string} [owner] Optional owner associated with the action.
-	   * @returns {number} The number of actions that were removed.
-	   * @memberof geo.util
-	   */
-	  removeAction: function (actions, action, name, owner) {
-	    var found, removed = 0;
-
-	    do {
-	      found = util.hasAction(actions, action, name, owner);
-	      if (found) {
-	        actions.splice($.inArray(found, actions), 1);
-	        removed += 1;
-	      }
-	    } while (found);
-	    return removed;
-	  },
-
-	  /**
-	   * Determine if the current inputs and modifiers match a known action.
-	   *
-	   * @param {object} inputs Aan object where each input that is currently
-	   *    active is truthy.  Common inputs are `left`, `right`, `middle`,
-	   *    `wheel`, `pan`, `rotate`.
-	   * @param {object} modifiers An object where each currently applied
-	   *    modifier is truthy.  Common modifiers are `shift`, `ctrl`, `alt`,
-	   *    `meta`.
-	   * @param {geo.actionRecord[]} actions A list of actions to compare to the
-	   *    inputs and modifiers.  The first action that matches will be
-	   *    returned.
-	   * @returns {geo.actionRecord} A matching action or `undefined`.
-	   * @memberof geo.util
-	   */
-	  actionMatch: function (inputs, modifiers, actions) {
-	    var matched;
-
-	    /* actions must have already been processed by adjustActions */
-	    if (actions.some(function (action) {
-	      for (var input in action.input) {
-	        if (action.input.hasOwnProperty(input)) {
-	          if ((action.input[input] === false && inputs[input]) ||
-	              (action.input[input] && !inputs[input])) {
-	            return false;
-	          }
-	        }
-	      }
-	      for (var modifier in action.modifiers) {
-	        if (action.modifiers.hasOwnProperty(modifier)) {
-	          if ((action.modifiers[modifier] === false && modifiers[modifier]) ||
-	              (action.modifiers[modifier] && !modifiers[modifier])) {
-	            return false;
-	          }
-	        }
-	      }
-	      matched = action;
-	      return true;
-	    })) {
-	      return matched;
-	    }
-	  },
-
-	  /**
-	   * Return recommended defaults for map parameters and osm or tile layer
-	   * paramaters where the expected intent is to use the map in pixel
-	   * coordinates (upper left is (0, 0), lower right is (`width`, `height`).
-	   *
-	   * @example <caption>The returned objects can be modified or
-	   *    extended.</caption>
-	   * var results = pixelCoordinateParams('#map', 10000, 9000);
-	   * var map = geo.map($.extend(results.map, {clampZoom: false}));
-	   * map.createLayer('osm', results.layer);
-	   *
-	   * @param {string} [node] DOM selector for the map container.
-	   * @param {number} width Width of the whole map contents in pixels.
-	   * @param {number} height Height of the whole map contents in pixels.
-	   * @param {number} [tileWidth] If an osm or tile layer is going to be used,
-	   *    the width of a tile.
-	   * @param {number} [tileHeight] If an osm or tile layer is going to be used,
-	   *    the height of a tile.
-	   * @returns {object} An object with `map` and `layer` properties.  `map` is
-	   *    an object that can be passed to {@link geo.map}, and `layer` is an
-	   *    object that can be passed to `map.createLayer`.
-	   * @memberof geo.util
-	   */
-	  pixelCoordinateParams: function (node, width, height, tileWidth, tileHeight) {
-	    var mapW, mapH, tiled;
-	    if (node) {
-	      node = $(node);
-	      mapW = node.innerWidth();
-	      mapH = node.innerHeight();
-	    }
-	    tileWidth = tileWidth || width;
-	    tileHeight = tileHeight || height;
-	    tiled = (tileWidth !== width || tileHeight !== height);
-	    var minLevel = Math.min(0, Math.floor(Math.log(Math.min(
-	          (mapW || tileWidth) / tileWidth,
-	          (mapH || tileHeight) / tileHeight)) / Math.log(2))),
-	        maxLevel = Math.ceil(Math.log(Math.max(
-	          width / tileWidth,
-	          height / tileHeight)) / Math.log(2));
-	    var mapParams = {
-	      node: node,
-	      ingcs: '+proj=longlat +axis=esu',
-	      gcs: '+proj=longlat +axis=enu',
-	      maxBounds: {left: 0, top: 0, right: width, bottom: height},
-	      unitsPerPixel: Math.pow(2, maxLevel),
-	      center: {x: width / 2, y: height / 2},
-	      min: minLevel,
-	      max: maxLevel,
-	      zoom: minLevel,
-	      clampBoundsX: true,
-	      clampBoundsY: true,
-	      clampZoom: true
-	    };
-	    var layerParams = {
-	      maxLevel: maxLevel,
-	      wrapX: false,
-	      wrapY: false,
-	      tileOffset: function () {
-	        return {x: 0, y: 0};
-	      },
-	      attribution: '',
-	      tileWidth: tileWidth,
-	      tileHeight: tileHeight,
-	      tileRounding: Math.ceil,
-	      tilesAtZoom: tiled ? function (level) {
-	        var scale = Math.pow(2, maxLevel - level);
-	        return {
-	          x: Math.ceil(width / tileWidth / scale),
-	          y: Math.ceil(height / tileHeight / scale)
-	        };
-	      } : undefined,
-	      tilesMaxBounds: tiled ? function (level) {
-	        var scale = Math.pow(2, maxLevel - level);
-	        return {
-	          x: Math.floor(width / scale),
-	          y: Math.floor(height / scale)
-	        };
-	      } : undefined
-	    };
-	    return {map: mapParams, layer: layerParams};
-	  },
-
-	  /**
-	   * Escape any character in a string that has a code point >= 127.
-	   *
-	   * @param {string} text The string to escape.
-	   * @returns {string} The escaped string.
-	   * @memberof geo.util
-	   */
-	  escapeUnicodeHTML: function (text) {
-	    return text.replace(/./g, function (k) {
-	      var code = k.charCodeAt();
-	      if (code < 127) {
-	        return k;
-	      }
-	      return '&#' + code.toString(10) + ';';
-	    });
-	  },
-
-	  /**
-	   * Check svg image and html img tags.  If the source is set, load images
-	   * explicitly and convert them to local data:image references.
-	   *
-	   * @param {jQuery.selector} elem A jQuery selector or element set that may
-	   *    contain images.
-	   * @returns {jQuery.Deferred[]} A list of deferred objects that resolve
-	   *    when images are dereferenced.
-	   * @memberof geo.util
-	   */
-	  dereferenceElements: function (elem) {
-	    var deferList = [];
-
-	    $('img,image', elem).each(function () {
-	      var src = $(this);
-	      var key = src.is('image') ? 'href' : 'src';
-	      if (src.attr(key)) {
-	        var img = new Image();
-	        if (src.attr(key).substr(0, 4) === 'http' || src[0].crossOrigin) {
-	          img.crossOrigin = src[0].crossOrigin || 'anonymous';
-	        }
-	        var defer = $.Deferred();
-	        img.onload = function () {
-	          var cvs = document.createElement('canvas');
-	          cvs.width = img.naturalWidth;
-	          cvs.height = img.naturalHeight;
-	          cvs.getContext('2d').drawImage(img, 0, 0);
-	          src.attr(key, cvs.toDataURL('image/png'));
-	          if (src.attr(key).substr(0, 10) !== 'data:image') {
-	            src.remove();
-	          }
-	          defer.resolve();
-	        };
-	        img.onerror = function () {
-	          src.remove();
-	          defer.resolve();
-	        };
-	        img.src = src.attr(key);
-	        deferList.push(defer);
-	      }
-	    });
-	    return deferList;
-	  },
-
-	  /**
-	   * Convert an html element to an image.  This attempts to localize any
-	   * images within the element.  If there are other external references, the
-	   * image may not work due to security considerations.
-	   *
-	   * @param {jQuery.selector} elem Either a jquery selector or an HTML
-	   *    element.  This may contain multiple elements.  The direct parent and
-	   *    grandparent of the element are used for class information.
-	   * @param {number} [parents] Number of layers up to travel to get class
-	   *    information.
-	   * @returns {jQuery.Deferred} A jquery deferred object which receives an
-	   *    HTML Image element when resolved.
-	   * @memberof geo.util
-	   */
-	  htmlToImage: function (elem, parents) {
-	    var defer = $.Deferred(), container;
-
-	    var parent = $(elem);
-	    elem = $(elem).clone();
-	    while (parents && parents > 0) {
-	      parent = parent.parent();
-	      if (parent.is('div')) {
-	        /* Create a containing div with the parent's class and id (so css
-	         * will be used), but override size and background. */
-	        container = $('<div>').attr({
-	          'class': parent.attr('class'),
-	          id: parent.attr('id')
-	        }).css({
-	          width: '100%',
-	          height: '100%',
-	          background: 'none',
-	          margin: 0
-	        });
-	        container.append(elem);
-	        elem = container;
-	      }
-	      parents -= 1;
-	    }
-	    // canvas elements won't render properly here.
-	    $('canvas', elem).remove();
-	    container = $('<div xmlns="http://www.w3.org/1999/xhtml">');
-	    container.css({
-	      width: parent.width() + 'px',
-	      height: parent.height() + 'px'
-	    });
-	    container.append($('<head>'));
-	    var body = $('<body>');
-	    container.append(body);
-	    /* We must specify the new body as having no background, or we'll clobber
-	     * other layers. */
-	    body.css({
-	      width: parent.width() + 'px',
-	      height: parent.height() + 'px',
-	      background: 'none',
-	      margin: 0
-	    });
-	    body.append(elem);
-	    var deferList = util.dereferenceElements(elem);
-	    /* Get styles and links in order, as order matters in css */
-	    $('style,link[rel="stylesheet"]').each(function () {
-	      var styleElem;
-	      if ($(this).is('style')) {
-	        styleElem = $(this).clone();
-	      } else {
-	        var fetch = $.Deferred();
-	        styleElem = $('<style type="text/css">');
-	        $.get($(this).attr('href')).done(function (css) {
-	          styleElem.text(css);
-	          fetch.resolve();
-	        });
-	        deferList.push(fetch);
-	      }
-	      $('head', container).append(styleElem);
-	    });
-
-	    $.when.apply($, deferList).then(function () {
-	      var svg = $('<svg xmlns="http://www.w3.org/2000/svg">' +
-	                  '<foreignObject width="100%" height="100%">' +
-	                  '</foreignObject></svg>');
-	      svg.attr({
-	        width: parent.width() + 'px',
-	        height: parent.height() + 'px',
-	        'text-rendering': 'optimizeLegibility'
-	      });
-	      $('foreignObject', svg).append(container);
-
-	      var img = new Image();
-	      img.onload = function () {
-	        defer.resolve(img);
-	      };
-	      img.onerror = function () {
-	        defer.reject();
-	      };
-	      img.src = 'data:image/svg+xml;base64,' +
-	          btoa(util.escapeUnicodeHTML(
-	              new XMLSerializer().serializeToString(svg[0])));
-	    });
-	    return defer;
-	  },
-
-	  /**
-	   * Report on one or all of the tracked timings.
-	   *
-	   * @param {string} [name] A name to report on, or `undefined` to report all.
-	   * @returns {object} An object with timing information, or an object with
-	   *    properties for all tracked timings, each of which contains timing
-	   *    information.
-	   * @memberof geo.util
-	   */
-	  timeReport: function (name) {
-	    $.each(m_timingData, function (key, item) {
-	      /* calculate the standard deviation of each item. */
-	      if (item.count) {
-	        item.stddev = Math.sqrt(Math.abs((
-	          item.sum2 - item.sum * item.sum / item.count) / item.count));
-	        item.average = item.sum / item.count;
-	      } else {
-	        item.stddev = 0;
-	        item.average = 0;
-	      }
-	    });
-	    if (name) {
-	      return m_timingData[name];
-	    }
-	    return m_timingData;
-	  },
-
-	  /**
-	   * Note the start time of a function (or any other section of code).  This
-	   * should be paired with `timeFunctionStop`, which will collect statistics on
-	   * the amount of time spent in a function.
-	   *
-	   * @param {string} name Name to use for tracking the timing.
-	   * @param {boolean} reset If `true`, clear old tracking data for this named
-	   *    tracker.
-	   * @memberof geo.util
-	   */
-	  timeFunctionStart: function (name, reset) {
-	    if (!m_timingData[name] || reset) {
-	      m_timingData[name] = {
-	        count: 0, sum: 0, sum2: 0, max: 0, recent: []
-	      };
-	    }
-	    m_timingData[name].start = window.performance.now();
-	  },
-
-	  /**
-	   * Note the stop time of a function (or any other section of code).  This
-	   * should be paired with `timeFunctionStart`.
-	   *
-	   * @param {string} name Name to use for tracking the timing.
-	   * @memberof geo.util
-	   */
-	  timeFunctionStop: function (name) {
-	    if (!m_timingData[name] || !m_timingData[name].start) {
-	      return;
-	    }
-	    var duration = window.performance.now() - m_timingData[name].start;
-	    m_timingData[name].start = null;
-	    m_timingData[name].sum += duration;
-	    m_timingData[name].sum2 += duration * duration;
-	    m_timingData[name].count += 1;
-	    m_timingData[name].max = Math.max(
-	      m_timingData[name].max, duration);
-	    m_timingData[name].recent.push(duration);
-	    if (m_timingData[name].recent.length > m_timingKeepRecent) {
-	      m_timingData[name].recent.splice(
-	          0, m_timingData[name].recent.length - m_timingKeepRecent);
-	    }
-	  },
-
-	  /**
-	   * Start or stop tracking the time spent in `requestAnimationFrame`.  If
-	   * tracked, the results can be fetched via
-	   * `timeFunctionReport('requestAnimationFrame')`.
-	   *
-	   * @param {boolean} [stop] Falsy to start tracking, truthy to start tracking.
-	   * @param {boolean} [reset] If truthy, reset the statistics.
-	   * @param {number} [threshold=15] If present, set the threshold in
-	   *    milliseconds used in tracking slow callbacks.
-	   * @param {number} [keep=200] If present, set the number of recent frame
-	   *    times to track.
-	   * @memberof geo.util
-	   */
-	  timeRequestAnimationFrame: function (stop, reset, threshold, keep) {
-	    if (!m_timingData.requestAnimationFrame || reset) {
-	      m_timingData.requestAnimationFrame = {
-	        count: 0,
-	        sum: 0,
-	        sum2: 0,
-	        max: 0,
-	        above_threshold: 0,
-	        recent: [],
-	        recentsub: []
-	      };
-	    }
-	    if (threshold) {
-	      m_threshold = threshold;
-	    }
-	    if (keep) {
-	      m_timingKeepRecent = keep;
-	    }
-	    if (stop && m_originalRequestAnimationFrame) {
-	      window.requestAnimationFrame = m_originalRequestAnimationFrame;
-	      m_originalRequestAnimationFrame = null;
-	    } else if (!stop && !m_originalRequestAnimationFrame) {
-	      m_originalRequestAnimationFrame = window.requestAnimationFrame;
-	      window.requestAnimationFrame = function (callback) {
-	        return m_originalRequestAnimationFrame.call(window, function (timestamp) {
-	          var track = m_timingData.requestAnimationFrame, recent;
-	          /* Some environments have unsynchronized performance and time
-	           * counters.  The nowDelta factor compensates for this.  For
-	           * instance, our test enviornment has performance.now() values on
-	           * the order of ~3000 and timestamps approximating epoch. */
-	          if (track.timestamp !== timestamp) {
-	            track.nowDelta = window.performance.now() - timestamp;
-	            if (Math.abs(track.nowDelta) < 1000) {
-	              track.nowDelta = 0;
-	            }
-	            track.timestamp = timestamp;
-	            track.subcalls = track.subcalls || 0;
-	            track.start = {
-	              sum: track.sum,
-	              sum2: track.sum2,
-	              count: track.count,
-	              max: track.max,
-	              above_threshold: track.above_threshold
-	            };
-	            track.recent.push([0]);
-	            track.recentsub.push([]);
-	            if (track.recent.length > m_timingKeepRecent) {
-	              track.recent.splice(
-	                  0, track.recent.length - m_timingKeepRecent);
-	              track.recentsub.splice(
-	                  0, track.recentsub.length - m_timingKeepRecent);
-	            }
-	          }
-	          track.subcalls += 1;
-	          callback.apply(this, arguments);
-	          var duration = window.performance.now() - timestamp;
-	          duration -= track.nowDelta;
-	          track.sum = track.start.sum + duration;
-	          track.sum2 = track.start.sum2 + duration * duration;
-	          track.count = track.start.count + 1;
-	          track.max = Math.max(track.max, duration);
-	          track.above_threshold = track.start.above_threshold + (
-	            duration >= m_threshold ? 1 : 0);
-	          track.recent[track.recent.length - 1] = duration;
-	          recent = track.recentsub[track.recent.length - 1];
-	          recent.push({
-	            total_duration: duration,
-	            duration: duration - (recent.length ?
-	              recent[recent.length - 1].total_duration : 0),
-	            callback: callback.name || callback
-	          });
-	        });
-	      };
-	    }
-	  },
-
-	  /**
-	   * Test if an item is an object.  This uses typeof not instanceof, since
-	   * instanceof will return false for some things that we expect to be objects.
-	   *
-	   * @param {*} value The item to test.
-	   * @returns {boolean} True if the tested item is an object.
-	   */
-	  isObject: function (value) {
-	    var type = typeof value;
-	    return value !== null && value !== undefined && (type === 'object' || type === 'function');
-	  },
-
-	  ///////////////////////////////////////////////////////////////////////////
-	  /*
-	   * Utility member properties.
-	   */
-	  ///////////////////////////////////////////////////////////////////////////
-
-	  /**
-	   * Radius of the earth in meters, from the equatorial radius of SRID 4326.
-	   * @memberof geo.util
-	   */
-	  radiusEarth: 6378137,
-
-	  /**
-	   * A regular expression string that will parse a number (integer or floating
-	   * point) for CSS properties.
-	   * @memberof geo.util
-	   */
-	  cssNumberRegex: '[+-]?(?:\\d+\\.?\\d*|\\.\\d+)(?:[eE][+-]?\\d+)?',
-
-	  /**
-	   * A dictionary of conversion factors for angular CSS measurements.
-	   * @memberof geo.util
-	   */
-	  cssAngleUnitsBase: {deg: 360, grad: 400, rad: 2 * Math.PI, turn: 1},
-
-	  /**
-	   * The predefined CSS colors.  See
-	   * {@link https://drafts.csswg.org/css-color}.
-	   *
-	   * @memberof geo.util
-	   */
-	  cssColors: {
-	    aliceblue: 0xf0f8ff,
-	    antiquewhite: 0xfaebd7,
-	    aqua: 0x00ffff,
-	    aquamarine: 0x7fffd4,
-	    azure: 0xf0ffff,
-	    beige: 0xf5f5dc,
-	    bisque: 0xffe4c4,
-	    black: 0x000000,
-	    blanchedalmond: 0xffebcd,
-	    blue: 0x0000ff,
-	    blueviolet: 0x8a2be2,
-	    brown: 0xa52a2a,
-	    burlywood: 0xdeb887,
-	    cadetblue: 0x5f9ea0,
-	    chartreuse: 0x7fff00,
-	    chocolate: 0xd2691e,
-	    coral: 0xff7f50,
-	    cornflowerblue: 0x6495ed,
-	    cornsilk: 0xfff8dc,
-	    crimson: 0xdc143c,
-	    cyan: 0x00ffff,
-	    darkblue: 0x00008b,
-	    darkcyan: 0x008b8b,
-	    darkgoldenrod: 0xb8860b,
-	    darkgray: 0xa9a9a9,
-	    darkgreen: 0x006400,
-	    darkgrey: 0xa9a9a9,
-	    darkkhaki: 0xbdb76b,
-	    darkmagenta: 0x8b008b,
-	    darkolivegreen: 0x556b2f,
-	    darkorange: 0xff8c00,
-	    darkorchid: 0x9932cc,
-	    darkred: 0x8b0000,
-	    darksalmon: 0xe9967a,
-	    darkseagreen: 0x8fbc8f,
-	    darkslateblue: 0x483d8b,
-	    darkslategray: 0x2f4f4f,
-	    darkslategrey: 0x2f4f4f,
-	    darkturquoise: 0x00ced1,
-	    darkviolet: 0x9400d3,
-	    deeppink: 0xff1493,
-	    deepskyblue: 0x00bfff,
-	    dimgray: 0x696969,
-	    dimgrey: 0x696969,
-	    dodgerblue: 0x1e90ff,
-	    firebrick: 0xb22222,
-	    floralwhite: 0xfffaf0,
-	    forestgreen: 0x228b22,
-	    fuchsia: 0xff00ff,
-	    gainsboro: 0xdcdcdc,
-	    ghostwhite: 0xf8f8ff,
-	    gold: 0xffd700,
-	    goldenrod: 0xdaa520,
-	    gray: 0x808080,
-	    green: 0x008000,
-	    greenyellow: 0xadff2f,
-	    grey: 0x808080,
-	    honeydew: 0xf0fff0,
-	    hotpink: 0xff69b4,
-	    indianred: 0xcd5c5c,
-	    indigo: 0x4b0082,
-	    ivory: 0xfffff0,
-	    khaki: 0xf0e68c,
-	    lavender: 0xe6e6fa,
-	    lavenderblush: 0xfff0f5,
-	    lawngreen: 0x7cfc00,
-	    lemonchiffon: 0xfffacd,
-	    lightblue: 0xadd8e6,
-	    lightcoral: 0xf08080,
-	    lightcyan: 0xe0ffff,
-	    lightgoldenrodyellow: 0xfafad2,
-	    lightgray: 0xd3d3d3,
-	    lightgreen: 0x90ee90,
-	    lightgrey: 0xd3d3d3,
-	    lightpink: 0xffb6c1,
-	    lightsalmon: 0xffa07a,
-	    lightseagreen: 0x20b2aa,
-	    lightskyblue: 0x87cefa,
-	    lightslategray: 0x778899,
-	    lightslategrey: 0x778899,
-	    lightsteelblue: 0xb0c4de,
-	    lightyellow: 0xffffe0,
-	    lime: 0x00ff00,
-	    limegreen: 0x32cd32,
-	    linen: 0xfaf0e6,
-	    magenta: 0xff00ff,
-	    maroon: 0x800000,
-	    mediumaquamarine: 0x66cdaa,
-	    mediumblue: 0x0000cd,
-	    mediumorchid: 0xba55d3,
-	    mediumpurple: 0x9370db,
-	    mediumseagreen: 0x3cb371,
-	    mediumslateblue: 0x7b68ee,
-	    mediumspringgreen: 0x00fa9a,
-	    mediumturquoise: 0x48d1cc,
-	    mediumvioletred: 0xc71585,
-	    midnightblue: 0x191970,
-	    mintcream: 0xf5fffa,
-	    mistyrose: 0xffe4e1,
-	    moccasin: 0xffe4b5,
-	    navajowhite: 0xffdead,
-	    navy: 0x000080,
-	    oldlace: 0xfdf5e6,
-	    olive: 0x808000,
-	    olivedrab: 0x6b8e23,
-	    orange: 0xffa500,
-	    orangered: 0xff4500,
-	    orchid: 0xda70d6,
-	    palegoldenrod: 0xeee8aa,
-	    palegreen: 0x98fb98,
-	    paleturquoise: 0xafeeee,
-	    palevioletred: 0xdb7093,
-	    papayawhip: 0xffefd5,
-	    peachpuff: 0xffdab9,
-	    peru: 0xcd853f,
-	    pink: 0xffc0cb,
-	    plum: 0xdda0dd,
-	    powderblue: 0xb0e0e6,
-	    purple: 0x800080,
-	    rebeccapurple: 0x663399,
-	    red: 0xff0000,
-	    rosybrown: 0xbc8f8f,
-	    royalblue: 0x4169e1,
-	    saddlebrown: 0x8b4513,
-	    salmon: 0xfa8072,
-	    sandybrown: 0xf4a460,
-	    seagreen: 0x2e8b57,
-	    seashell: 0xfff5ee,
-	    sienna: 0xa0522d,
-	    silver: 0xc0c0c0,
-	    skyblue: 0x87ceeb,
-	    slateblue: 0x6a5acd,
-	    slategray: 0x708090,
-	    slategrey: 0x708090,
-	    snow: 0xfffafa,
-	    springgreen: 0x00ff7f,
-	    steelblue: 0x4682b4,
-	    tan: 0xd2b48c,
-	    teal: 0x008080,
-	    thistle: 0xd8bfd8,
-	    tomato: 0xff6347,
-	    turquoise: 0x40e0d0,
-	    violet: 0xee82ee,
-	    wheat: 0xf5deb3,
-	    white: 0xffffff,
-	    whitesmoke: 0xf5f5f5,
-	    yellow: 0xffff00,
-	    yellowgreen: 0x9acd32
-	  }
-	};
-
-	///////////////////////////////////////////////////////////////////////////
-	/*
-	 * Utility member properties that need to refer to util functions and
-	 * properties.
-	 */
-	///////////////////////////////////////////////////////////////////////////
-
-	/**
-	 * A list of regex and processing functions for color conversions to rgb
-	 * objects.  Each entry is a {@link geo.util.cssColorConversionRecord}.  In
-	 * general, these conversions are somewhat more forgiving than the css
-	 * specification (see https://drafts.csswg.org/css-color/) in that
-	 * percentages may be mixed with numbers, and that floating point values are
-	 * accepted for all numbers.  Commas are optional.  As per the latest draft
-	 * standard, `rgb` and `rgba` are aliases of each other, as are `hsl` and
-	 * `hsla`.
-	 * @alias cssColorConversions
-	 * @memberof geo.util
-	 */
-	util.cssColorConversions = [{
-	  name: 'rgb',
-	  regex: new RegExp(
-	    '^\\s*rgba?' +
-	    '\\(\\s*(' + util.cssNumberRegex + ')\\s*(%?)\\s*' +
-	    ',?\\s*(' + util.cssNumberRegex + ')\\s*(%?)\\s*' +
-	    ',?\\s*(' + util.cssNumberRegex + ')\\s*(%?)\\s*' +
-	    '([/,]?\\s*(' + util.cssNumberRegex + ')\\s*(%?)\\s*)?' +
-	    '\\)\\s*$'),
-	  process: function (color, match) {
-	    color = {
-	      r: Math.min(1, Math.max(0, +match[1] / (match[2] ? 100 : 255))),
-	      g: Math.min(1, Math.max(0, +match[3] / (match[4] ? 100 : 255))),
-	      b: Math.min(1, Math.max(0, +match[5] / (match[6] ? 100 : 255)))
-	    };
-	    if (match[7]) {
-	      color.a = Math.min(1, Math.max(0, +match[8] / (match[9] ? 100 : 1)));
-	    }
-	    return color;
-	  }
-	}, {
-	  name: 'hsl',
-	  regex: new RegExp(
-	    '^\\s*hsla?' +
-	    '\\(\\s*(' + util.cssNumberRegex + ')\\s*(deg|grad|rad|turn)?\\s*' +
-	    ',?\\s*(' + util.cssNumberRegex + ')\\s*%\\s*' +
-	    ',?\\s*(' + util.cssNumberRegex + ')\\s*%\\s*' +
-	    '([/,]?\\s*(' + util.cssNumberRegex + ')\\s*(%?)\\s*)?' +
-	    '\\)\\s*$'),
-	  process: function (color, match) {
-	    /* Conversion from https://www.w3.org/TR/2011/REC-css3-color-20110607
-	     */
-	    var hue_to_rgb = function (m1, m2, h) {
-	      h = h - Math.floor(h);
-	      if (h * 6 < 1) {
-	        return m1 + (m2 - m1) * h * 6;
-	      }
-	      if (h * 6 < 3) {
-	        return m2;
-	      }
-	      if (h * 6 < 4) {
-	        return m1 + (m2 - m1) * (2 / 3 - h) * 6;
-	      }
-	      return m1;
-	    };
-
-	    var h = +match[1] / (util.cssAngleUnitsBase[match[2]] || 360),
-	        s = Math.min(1, Math.max(0, +match[3] / 100)),
-	        l = Math.min(1, Math.max(0, +match[4] / 100)),
-	        m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s,
-	        m1 = l * 2 - m2;
-	    color = {
-	      r: hue_to_rgb(m1, m2, h + 1 / 3),
-	      g: hue_to_rgb(m1, m2, h),
-	      b: hue_to_rgb(m1, m2, h - 1 / 3)
-	    };
-	    if (match[5]) {
-	      color.a = Math.min(1, Math.max(0, +match[6] / (match[7] ? 100 : 1)));
-	    }
-	    return color;
-	  }
-	}];
-
-	/* Add additional utilities to the main object. */
-	$.extend(util, throttle, mockVGL);
-
-
-/***/ }),
-/* 84 */
-/***/ (function(module, exports) {
-
-	/**
-	 * Based on the following jquery throttle / debounce plugin:
-	 *
-	 * jQuery throttle / debounce - v1.1 - 3/7/2010
-	 * http://benalman.com/projects/jquery-throttle-debounce-plugin/
-	 *
-	 * @copyright 2010 "Cowboy" Ben Alman
-	 * Dual licensed under the MIT and GPL licenses.
-	 * http://benalman.com/about/license/
-	 *
-	 * The implementation included here is modified to support a callback
-	 * method that can accumulate values between actual invocations of
-	 * the throttled method.
-	 */
-
-	/**
-	 * Throttle execution of a function. Especially useful for rate limiting
-	 * execution of handlers on events like resize and scroll. If you want to
-	 * rate-limit execution of a function to a single time see
-	 * {@link geo.util.debounce}.
-	 *
-	 * In this visualization, | is a throttled-function call and X is the actual
-	 * callback execution:
-	 *
-	 * ```
-	 * Throttled with `no_trailing` specified as false or unspecified:
-	 * ||||||||||||||||||||||||| (pause) |||||||||||||||||||||||||
-	 * X    X    X    X    X    X        X    X    X    X    X    X
-	 *
-	 * Throttled with `no_trailing` specified as true:
-	 * ||||||||||||||||||||||||| (pause) |||||||||||||||||||||||||
-	 * X    X    X    X    X             X    X    X    X    X
-	 * ```
-	 *
-	 * @alias geo.util.throttle
-	 * @param {number} delay A zero-or-greater delay in milliseconds. For event
-	 *    callbacks, values around 100 or 250 (or even higher) are most useful.
-	 * @param {boolean} [no_trailing=false] If no_trailing is
-	 *    true, callback will only execute every `delay` milliseconds while the
-	 *    throttled-function is being called. If no_trailing is false or
-	 *    unspecified, callback will be executed one final time after the last
-	 *    throttled-function call. (After the throttled-function has not been
-	 *    called for `delay` milliseconds, the internal counter is reset)
-	 * @param {function} callback A function to be executed after `delay`
-	 *    milliseconds. The `this` context and all arguments are passed through,
-	 *    as-is, to `callback` when the throttled-function is executed.
-	 * @param {function} [accumulator] A function to be executed (synchronously)
-	 *    during **each** call to the wrapped function.  Typically, this
-	 *    this method is used to accumulate values that the callback uses
-	 *    when it finally executes.
-	 *
-	 * @returns {function} The throttled version of `callback`
-	 *
-	 * @example
-	 * var throttled = geo.util.throttle( delay, [ no_trailing, ] callback );
-	 * $('selector').bind( 'someevent', throttled );
-	 * $('selector').unbind( 'someevent', throttled );
-	 */
-	var throttle = function (delay, no_trailing,
-	                              callback, accumulator, debounce_mode) {
-	  // After wrapper has stopped being called, this timeout ensures that
-	  // `callback` is executed at the proper times in `throttle` and `end`
-	  // debounce modes.
-	  var timeout_id,
-
-	    // Keep track of the last time `callback` was executed.
-	      last_exec = 0;
-
-	  // `no_trailing` defaults to falsy.
-	  if (typeof no_trailing !== 'boolean') {
-	    debounce_mode = accumulator;
-	    accumulator = callback;
-	    callback = no_trailing;
-	    no_trailing = undefined;
-	  }
-
-	  // accumulator defaults to no-op
-	  if (typeof accumulator !== 'function') {
-	    debounce_mode = accumulator;
-	    accumulator = function () {};
-	  }
-
-	  // The `wrapper` function encapsulates all of the throttling / debouncing
-	  // functionality and when executed will limit the rate at which `callback`
-	  // is executed.
-	  function wrapper() {
-	    var that = this,
-	        elapsed = +new Date() - last_exec,
-	        args = arguments;
-
-	    // Execute `callback` and update the `last_exec` timestamp.
-	    function exec() {
-	      last_exec = +new Date();
-	      callback.apply(that, args);
-	    }
-
-	    // If `debounce_mode` is true (at_begin) this is used to clear the flag
-	    // to allow future `callback` executions.
-	    function clear() {
-	      timeout_id = undefined;
-	    }
-
-	    // always call the accumulator first
-	    accumulator.apply(that, args);
-
-	    if (debounce_mode && !timeout_id) {
-	      // Since `wrapper` is being called for the first time and
-	      // `debounce_mode` is true (at_begin), execute `callback`.
-	      exec();
-	    }
-
-	    // Clear any existing timeout.
-	    void (
-	      timeout_id && clearTimeout(timeout_id)
-	    );
-
-	    if (debounce_mode === undefined && elapsed > delay) {
-	      // In throttle mode, if `delay` time has been exceeded, execute
-	      // `callback`.
-	      exec();
-
-	    } else if (no_trailing !== true) {
-	      /*
-	       * In trailing throttle mode, since `delay` time has not been
-	       * exceeded, schedule `callback` to execute `delay` ms after most
-	       * recent execution.
-	       *
-	       * If `debounce_mode` is true (at_begin), schedule `clear` to execute
-	       * after `delay` ms.
-	       *
-	       * If `debounce_mode` is false (at end), schedule `callback` to
-	       * execute after `delay` ms.
-	       */
-	      timeout_id = setTimeout(
-	        debounce_mode ?
-	          clear :
-	          exec,
-	        debounce_mode === undefined ?
-	          delay - elapsed :
-	          delay
-	      );
-	    }
-	  }
-
-	  // Return the wrapper function.
-	  return wrapper;
-	};
-
-	/**
-	 * Debounce execution of a function. Debouncing, unlike throttling,
-	 * guarantees that a function is only executed a single time, either at the
-	 * very beginning of a series of calls, or at the very end. If you want to
-	 * simply rate-limit execution of a function, see the <jQuery.throttle>
-	 * method.
-	 *
-	 * In this visualization, | is a debounced-function call and X is the actual
-	 * callback execution:
-	 *
-	 * ::
-	 *
-	 *   Debounced with `at_begin` specified as false or unspecified:
-	 *   ||||||||||||||||||||||||| (pause) |||||||||||||||||||||||||
-	 *                            X                                 X
-	 *
-	 *   Debounced with `at_begin` specified as true:
-	 *   ||||||||||||||||||||||||| (pause) |||||||||||||||||||||||||
-	 *   X                                 X
-	 *
-	 *
-	 * @param {number} delay A zero-or-greater delay in milliseconds. For event
-	 *    callbacks, values around 100 or 250 (or even higher) are most useful.
-	 * @param {boolean} [at_begin=false] If at_begin is false or
-	 *    unspecified, callback will only be executed `delay` milliseconds after
-	 *    the last debounced-function call. If at_begin is true, callback will be
-	 *    executed only at the first debounced-function call. (After the
-	 *    throttled-function has not been called for `delay` milliseconds, the
-	 *    internal counter is reset)
-	 * @param {function} callback A function to be executed after delay milliseconds.
-	 *    The `this` context and all arguments are passed through, as-is, to
-	 *    `callback` when the debounced-function is executed.
-	 * @param {function} [accumulator] A function to be executed (synchronously)
-	 *    during **each** call to the wrapped function.  Typically, this
-	 *    this method is used to accumulate values that the callback uses
-	 *    when it finally executes.
-	 *
-	 * @returns {function} A new, debounced, function.
-	 *
-	 * @example
-	 * var debounced = geo.util.debounce( delay, [ at_begin, ] callback );
-	 * $('selector').bind( 'someevent', debounced );
-	 * $('selector').unbind( 'someevent', debounced );
-	 *
-	 */
-
-	var debounce = function (delay, at_begin, callback, accumulator) {
-	  if (typeof at_begin !== 'boolean') {
-	    accumulator = callback;
-	    callback = at_begin;
-	    at_begin = false;
-	  }
-	  accumulator = accumulator || function () {};
-	  return throttle(delay, false, callback, accumulator, !!at_begin);
-	};
-
-	module.exports = {
-	  throttle: throttle,
-	  debounce: debounce
-	};
-
-
-/***/ }),
-/* 85 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/* eslint-disable camelcase */
-	/* eslint-disable underscore/prefer-constant */
-
-	var $ = __webpack_require__(1);
-	var vgl = __webpack_require__(86);
-	var vglRenderer = __webpack_require__(200);
-
-	var _renderWindow, _supported;
-
-	module.exports = {};
-
-	/**
-	 * Replace vgl.renderer with a mocked version for testing in a non-webGL state.
-	 * Use restoreVGLRenderer to unmock.  Call vgl.mockCounts() to get the number
-	 * of times different webGL functions have been called.
-	 *
-	 * @param {boolean} [supported=true] If false, then the vgl renderer will
-	 *      indicate that this is an unsupported browser environment.
-	 * @alias geo.util.mockVGLRenderer
-	 */
-	module.exports.mockVGLRenderer = function mockVGLRenderer(supported) {
-	  'use strict';
-	  var vgl = __webpack_require__(86);
-
-	  if (supported === undefined) {
-	    supported = true;
-	  }
-
-	  if (vgl._mocked) {
-	    throw new Error('VGL renderer already mocked');
-	  }
-
-	  var mockCounts = {};
-	  var count = function (name) {
-	    mockCounts[name] = (mockCounts[name] || 0) + 1;
-	  };
-	  var noop = function (name) {
-	    return function () {
-	      count(name);
-	    };
-	  };
-	  var _id = 0,
-	      incID = function (name) {
-	        return function () {
-	          count(name);
-	          _id += 1;
-	          return _id;
-	        };
-	      };
-	  /* The context largely does nothing. */
-	  var default_context = {
-	    activeTexture: noop('activeTexture'),
-	    attachShader: noop('attachShader'),
-	    bindAttribLocation: noop('bindAttribLocation'),
-	    bindBuffer: noop('bindBuffer'),
-	    bindFramebuffer: noop('bindFramebuffer'),
-	    bindTexture: noop('bindTexture'),
-	    blendFuncSeparate: noop('blendFuncSeparate'),
-	    bufferData: noop('bufferData'),
-	    bufferSubData: noop('bufferSubData'),
-	    checkFramebufferStatus: function (key) {
-	      count('checkFramebufferStatus');
-	      if (key === vgl.GL.FRAMEBUFFER) {
-	        return vgl.GL.FRAMEBUFFER_COMPLETE;
-	      }
-	    },
-	    clear: noop('clear'),
-	    clearColor: noop('clearColor'),
-	    clearDepth: noop('clearDepth'),
-	    compileShader: noop('compileShader'),
-	    createBuffer: incID('createBuffer'),
-	    createFramebuffer: noop('createFramebuffer'),
-	    createProgram: incID('createProgram'),
-	    createShader: incID('createShader'),
-	    createTexture: incID('createTexture'),
-	    deleteBuffer: noop('deleteBuffer'),
-	    deleteProgram: noop('deleteProgram'),
-	    deleteShader: noop('deleteShader'),
-	    deleteTexture: noop('deleteTexture'),
-	    depthFunc: noop('depthFunc'),
-	    disable: noop('disable'),
-	    disableVertexAttribArray: noop('disableVertexAttribArray'),
-	    drawArrays: noop('drawArrays'),
-	    enable: noop('enable'),
-	    enableVertexAttribArray: noop('enableVertexAttribArray'),
-	    finish: noop('finish'),
-	    getExtension: incID('getExtension'),
-	    getParameter: function (key) {
-	      count('getParameter');
-	      if (key === vgl.GL.DEPTH_BITS) {
-	        return 16;
-	      }
-	    },
-	    getProgramParameter: function (id, key) {
-	      count('getProgramParameter');
-	      if (key === vgl.GL.LINK_STATUS) {
-	        return true;
-	      }
-	    },
-	    getShaderInfoLog: function () {
-	      count('getShaderInfoLog');
-	      return 'log';
-	    },
-	    getShaderParameter: function (id, key) {
-	      count('getShaderParameter');
-	      if (key === vgl.GL.COMPILE_STATUS) {
-	        return true;
-	      }
-	    },
-	    getUniformLocation: incID('getUniformLocation'),
-	    isEnabled: function (key) {
-	      count('isEnabled');
-	      if (key === vgl.GL.BLEND) {
-	        return true;
-	      }
-	    },
-	    linkProgram: noop('linkProgram'),
-	    pixelStorei: noop('pixelStorei'),
-	    shaderSource: noop('shaderSource'),
-	    texImage2D: noop('texImage2D'),
-	    texParameteri: noop('texParameteri'),
-	    uniform1iv: noop('uniform1iv'),
-	    uniform1fv: noop('uniform1fv'),
-	    uniform2fv: noop('uniform2fv'),
-	    uniform3fv: noop('uniform3fv'),
-	    uniform4fv: noop('uniform4fv'),
-	    uniformMatrix3fv: noop('uniformMatrix3fv'),
-	    uniformMatrix4fv: noop('uniformMatrix4fv'),
-	    useProgram: noop('useProgram'),
-	    vertexAttribPointer: noop('vertexAttribPointer'),
-	    vertexAttrib3fv: noop('vertexAttrib3fv'),
-	    viewport: noop('viewport')
-	  };
-
-	  _renderWindow = vgl.renderWindow;
-	  var mockedRenderWindow = function () {
-	    /* Temporarily put back the original definition of renderWindow so that the
-	     * class instance will be instantiated correctly. */
-	    vgl.renderWindow = _renderWindow;
-	    var m_this = new vgl.renderWindow(),
-	        m_context;
-	    vgl.renderWindow = mockedRenderWindow;
-
-	    m_this._setup = function () {
-	      var i, renderers = m_this.renderers(),
-	          wsize = m_this.windowSize(),
-	          wpos = m_this.windowPosition();
-
-	      m_context = $.extend({}, default_context);
-
-	      for (i = 0; i < renderers.length; i += 1) {
-	        if ((renderers[i].width() > wsize[0]) ||
-	            renderers[i].width() === 0 ||
-	            (renderers[i].height() > wsize[1]) ||
-	            renderers[i].height() === 0) {
-	          renderers[i].resize(wpos[0], wpos[1], wsize[0], wsize[1]);
-	        }
-	      }
-	      return true;
-	    };
-	    m_this.context = function () {
-	      return m_context;
-	    };
-	    return m_this;
-	  };
-	  vgl.renderWindow = mockedRenderWindow;
-
-	  _supported = vglRenderer.supported;
-	  vglRenderer.supported = function () {
-	    return !!supported;
-	  };
-
-	  vgl._mocked = true;
-	  vgl.mockCounts = function () {
-	    return mockCounts;
-	  };
-	};
-
-	/**
-	 * Unmock the vgl renderer.
-	 * @alias geo.util.restoreVGLRenderer
-	 */
-	module.exports.restoreVGLRenderer = function () {
-	  if (vgl._mocked) {
-	    vgl.renderWindow = _renderWindow;
-	    vglRenderer.supported = _supported;
-	    delete vgl._mocked;
-	    // delete vgl._mockedRenderWindow;
-	    delete vgl.mockCounts;
-	  }
-	};
-
-
-/***/ }),
-/* 86 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/* WEBPACK VAR INJECTION */(function(global) {module.exports = global["vgl"] = __webpack_require__(87);
-	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
-
-/***/ }),
-/* 87 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*** IMPORTS FROM imports-loader ***/
-	var mat4 = __webpack_require__(88);
-	var vec4 = __webpack_require__(112);
-	var vec3 = __webpack_require__(138);
-	var vec2 = __webpack_require__(171);
-	var $ = __webpack_require__(1);
-
-	(function (root, factory) {
-	  if (true) {
-	    // AMD. Register as an anonymous module unless amdModuleId is set
-	    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = function () {
-	      return (root['vgl'] = factory());
-	    }.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-	  } else if (typeof exports === 'object') {
-	    // Node. Does not work with strict CommonJS, but
-	    // only CommonJS-like environments that support module.exports,
-	    // like Node.
-	    module.exports = factory();
-	  } else {
-	    root['vgl'] = factory();
-	  }
-	}(this, function () {
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/* exported vgl, inherit */
-	//////////////////////////////////////////////////////////////////////////////
-
-	if (typeof ogs === 'undefined') {
-	  var ogs = {};
-	}
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create namespace for the given name
-	 *
-	 * @param ns_string
-	 * @returns {*|{}}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	ogs.namespace = function (ns_string) {
-	  'use strict';
-
-	  var parts = ns_string.split('.'), parent = ogs, i;
-
-	  // strip redundant leading global
-	  if (parts[0] === 'ogs') {
-	    parts = parts.slice(1);
-	  }
-	  for (i = 0; i < parts.length; i += 1) {
-	    // create a property if it doesn't exist
-	    if (typeof parent[parts[i]] === 'undefined') {
-	      parent[parts[i]] = {};
-	    }
-	    parent = parent[parts[i]];
-	  }
-	  return parent;
-	};
-
-	/** vgl namespace */
-	var vgl = ogs.namespace('gl');
-	window.vgl = vgl;
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Convenient function to define JS inheritance
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.inherit = function (C, P) {
-	  'use strict';
-
-	  var F = inherit.func();
-	  F.prototype = P.prototype;
-	  C.prototype = new F();
-	  C.prototype.constructor = C;
-	};
-	vgl.inherit.func = function () {
-	  'use strict';
-	  return function () {};
-	};
-
-	window.inherit = vgl.inherit;
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Convenient function to get size of an object
-	 *
-	 * @param obj
-	 * @returns {number} *
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	Object.size = function (obj) {
-	  'use strict';
-
-	  var size = 0, key;
-	  for (key in obj) {
-	    if (obj.hasOwnProperty(key)) {
-	      size += 1;
-	    }
-	  }
-	  return size;
-	};
-
-	/* Polyfill for Math.log2 */
-	if (!Math.log2) {
-	  Math.log2 = function (val) {
-	    return Math.log(val) / Math.log(2);
-	  };
-	}
-
-	vgl.version = '0.3.10';
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Wrap GL enums. Currently to get values of the enums we need to create
-	 * or access the context.
-	 *
-	 * Using enums from here:
-	 * https://github.com/toji/dart-gl-enums/blob/master/lib/gl_enums.dart
-	 *
-	 * @class
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.GL = {
-	  ACTIVE_ATTRIBUTES : 0x8B89,
-	  ACTIVE_TEXTURE : 0x84E0,
-	  ACTIVE_UNIFORMS : 0x8B86,
-	  ALIASED_LINE_WIDTH_RANGE : 0x846E,
-	  ALIASED_POINT_SIZE_RANGE : 0x846D,
-	  ALPHA : 0x1906,
-	  ALPHA_BITS : 0x0D55,
-	  ALWAYS : 0x0207,
-	  ARRAY_BUFFER : 0x8892,
-	  ARRAY_BUFFER_BINDING : 0x8894,
-	  ATTACHED_SHADERS : 0x8B85,
-	  BACK : 0x0405,
-	  BLEND : 0x0BE2,
-	  BLEND_COLOR : 0x8005,
-	  BLEND_DST_ALPHA : 0x80CA,
-	  BLEND_DST_RGB : 0x80C8,
-	  BLEND_EQUATION : 0x8009,
-	  BLEND_EQUATION_ALPHA : 0x883D,
-	  BLEND_EQUATION_RGB : 0x8009,
-	  BLEND_SRC_ALPHA : 0x80CB,
-	  BLEND_SRC_RGB : 0x80C9,
-	  BLUE_BITS : 0x0D54,
-	  BOOL : 0x8B56,
-	  BOOL_VEC2 : 0x8B57,
-	  BOOL_VEC3 : 0x8B58,
-	  BOOL_VEC4 : 0x8B59,
-	  BROWSER_DEFAULT_WEBGL : 0x9244,
-	  BUFFER_SIZE : 0x8764,
-	  BUFFER_USAGE : 0x8765,
-	  BYTE : 0x1400,
-	  CCW : 0x0901,
-	  CLAMP_TO_EDGE : 0x812F,
-	  COLOR_ATTACHMENT0 : 0x8CE0,
-	  COLOR_BUFFER_BIT : 0x00004000,
-	  COLOR_CLEAR_VALUE : 0x0C22,
-	  COLOR_WRITEMASK : 0x0C23,
-	  COMPILE_STATUS : 0x8B81,
-	  COMPRESSED_TEXTURE_FORMATS : 0x86A3,
-	  CONSTANT_ALPHA : 0x8003,
-	  CONSTANT_COLOR : 0x8001,
-	  CONTEXT_LOST_WEBGL : 0x9242,
-	  CULL_FACE : 0x0B44,
-	  CULL_FACE_MODE : 0x0B45,
-	  CURRENT_PROGRAM : 0x8B8D,
-	  CURRENT_VERTEX_ATTRIB : 0x8626,
-	  CW : 0x0900,
-	  DECR : 0x1E03,
-	  DECR_WRAP : 0x8508,
-	  DELETE_STATUS : 0x8B80,
-	  DEPTH_ATTACHMENT : 0x8D00,
-	  DEPTH_BITS : 0x0D56,
-	  DEPTH_BUFFER_BIT : 0x00000100,
-	  DEPTH_CLEAR_VALUE : 0x0B73,
-	  DEPTH_COMPONENT : 0x1902,
-	  DEPTH_COMPONENT16 : 0x81A5,
-	  DEPTH_FUNC : 0x0B74,
-	  DEPTH_RANGE : 0x0B70,
-	  DEPTH_STENCIL : 0x84F9,
-	  DEPTH_STENCIL_ATTACHMENT : 0x821A,
-	  DEPTH_TEST : 0x0B71,
-	  DEPTH_WRITEMASK : 0x0B72,
-	  DITHER : 0x0BD0,
-	  DONT_CARE : 0x1100,
-	  DST_ALPHA : 0x0304,
-	  DST_COLOR : 0x0306,
-	  DYNAMIC_DRAW : 0x88E8,
-	  ELEMENT_ARRAY_BUFFER : 0x8893,
-	  ELEMENT_ARRAY_BUFFER_BINDING : 0x8895,
-	  EQUAL : 0x0202,
-	  FASTEST : 0x1101,
-	  FLOAT : 0x1406,
-	  FLOAT_MAT2 : 0x8B5A,
-	  FLOAT_MAT3 : 0x8B5B,
-	  FLOAT_MAT4 : 0x8B5C,
-	  FLOAT_VEC2 : 0x8B50,
-	  FLOAT_VEC3 : 0x8B51,
-	  FLOAT_VEC4 : 0x8B52,
-	  FRAGMENT_SHADER : 0x8B30,
-	  FRAMEBUFFER : 0x8D40,
-	  FRAMEBUFFER_ATTACHMENT_OBJECT_NAME : 0x8CD1,
-	  FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE : 0x8CD0,
-	  FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE : 0x8CD3,
-	  FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL : 0x8CD2,
-	  FRAMEBUFFER_BINDING : 0x8CA6,
-	  FRAMEBUFFER_COMPLETE : 0x8CD5,
-	  FRAMEBUFFER_INCOMPLETE_ATTACHMENT : 0x8CD6,
-	  FRAMEBUFFER_INCOMPLETE_DIMENSIONS : 0x8CD9,
-	  FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT : 0x8CD7,
-	  FRAMEBUFFER_UNSUPPORTED : 0x8CDD,
-	  FRONT : 0x0404,
-	  FRONT_AND_BACK : 0x0408,
-	  FRONT_FACE : 0x0B46,
-	  FUNC_ADD : 0x8006,
-	  FUNC_REVERSE_SUBTRACT : 0x800B,
-	  FUNC_SUBTRACT : 0x800A,
-	  GENERATE_MIPMAP_HINT : 0x8192,
-	  GEQUAL : 0x0206,
-	  GREATER : 0x0204,
-	  GREEN_BITS : 0x0D53,
-	  HIGH_FLOAT : 0x8DF2,
-	  HIGH_INT : 0x8DF5,
-	  INCR : 0x1E02,
-	  INCR_WRAP : 0x8507,
-	  INT : 0x1404,
-	  INT_VEC2 : 0x8B53,
-	  INT_VEC3 : 0x8B54,
-	  INT_VEC4 : 0x8B55,
-	  INVALID_ENUM : 0x0500,
-	  INVALID_FRAMEBUFFER_OPERATION : 0x0506,
-	  INVALID_OPERATION : 0x0502,
-	  INVALID_VALUE : 0x0501,
-	  INVERT : 0x150A,
-	  KEEP : 0x1E00,
-	  LEQUAL : 0x0203,
-	  LESS : 0x0201,
-	  LINEAR : 0x2601,
-	  LINEAR_MIPMAP_LINEAR : 0x2703,
-	  LINEAR_MIPMAP_NEAREST : 0x2701,
-	  LINES : 0x0001,
-	  LINE_LOOP : 0x0002,
-	  LINE_STRIP : 0x0003,
-	  LINE_WIDTH : 0x0B21,
-	  LINK_STATUS : 0x8B82,
-	  LOW_FLOAT : 0x8DF0,
-	  LOW_INT : 0x8DF3,
-	  LUMINANCE : 0x1909,
-	  LUMINANCE_ALPHA : 0x190A,
-	  MAX_COMBINED_TEXTURE_IMAGE_UNITS : 0x8B4D,
-	  MAX_CUBE_MAP_TEXTURE_SIZE : 0x851C,
-	  MAX_FRAGMENT_UNIFORM_VECTORS : 0x8DFD,
-	  MAX_RENDERBUFFER_SIZE : 0x84E8,
-	  MAX_TEXTURE_IMAGE_UNITS : 0x8872,
-	  MAX_TEXTURE_SIZE : 0x0D33,
-	  MAX_VARYING_VECTORS : 0x8DFC,
-	  MAX_VERTEX_ATTRIBS : 0x8869,
-	  MAX_VERTEX_TEXTURE_IMAGE_UNITS : 0x8B4C,
-	  MAX_VERTEX_UNIFORM_VECTORS : 0x8DFB,
-	  MAX_VIEWPORT_DIMS : 0x0D3A,
-	  MEDIUM_FLOAT : 0x8DF1,
-	  MEDIUM_INT : 0x8DF4,
-	  MIRRORED_REPEAT : 0x8370,
-	  NEAREST : 0x2600,
-	  NEAREST_MIPMAP_LINEAR : 0x2702,
-	  NEAREST_MIPMAP_NEAREST : 0x2700,
-	  NEVER : 0x0200,
-	  NICEST : 0x1102,
-	  NONE : 0,
-	  NOTEQUAL : 0x0205,
-	  NO_ERROR : 0,
-	  ONE : 1,
-	  ONE_MINUS_CONSTANT_ALPHA : 0x8004,
-	  ONE_MINUS_CONSTANT_COLOR : 0x8002,
-	  ONE_MINUS_DST_ALPHA : 0x0305,
-	  ONE_MINUS_DST_COLOR : 0x0307,
-	  ONE_MINUS_SRC_ALPHA : 0x0303,
-	  ONE_MINUS_SRC_COLOR : 0x0301,
-	  OUT_OF_MEMORY : 0x0505,
-	  PACK_ALIGNMENT : 0x0D05,
-	  POINTS : 0x0000,
-	  POLYGON_OFFSET_FACTOR : 0x8038,
-	  POLYGON_OFFSET_FILL : 0x8037,
-	  POLYGON_OFFSET_UNITS : 0x2A00,
-	  RED_BITS : 0x0D52,
-	  RENDERBUFFER : 0x8D41,
-	  RENDERBUFFER_ALPHA_SIZE : 0x8D53,
-	  RENDERBUFFER_BINDING : 0x8CA7,
-	  RENDERBUFFER_BLUE_SIZE : 0x8D52,
-	  RENDERBUFFER_DEPTH_SIZE : 0x8D54,
-	  RENDERBUFFER_GREEN_SIZE : 0x8D51,
-	  RENDERBUFFER_HEIGHT : 0x8D43,
-	  RENDERBUFFER_INTERNAL_FORMAT : 0x8D44,
-	  RENDERBUFFER_RED_SIZE : 0x8D50,
-	  RENDERBUFFER_STENCIL_SIZE : 0x8D55,
-	  RENDERBUFFER_WIDTH : 0x8D42,
-	  RENDERER : 0x1F01,
-	  REPEAT : 0x2901,
-	  REPLACE : 0x1E01,
-	  RGB : 0x1907,
-	  RGB565 : 0x8D62,
-	  RGB5_A1 : 0x8057,
-	  RGBA : 0x1908,
-	  RGBA4 : 0x8056,
-	  SAMPLER_2D : 0x8B5E,
-	  SAMPLER_CUBE : 0x8B60,
-	  SAMPLES : 0x80A9,
-	  SAMPLE_ALPHA_TO_COVERAGE : 0x809E,
-	  SAMPLE_BUFFERS : 0x80A8,
-	  SAMPLE_COVERAGE : 0x80A0,
-	  SAMPLE_COVERAGE_INVERT : 0x80AB,
-	  SAMPLE_COVERAGE_VALUE : 0x80AA,
-	  SCISSOR_BOX : 0x0C10,
-	  SCISSOR_TEST : 0x0C11,
-	  SHADER_TYPE : 0x8B4F,
-	  SHADING_LANGUAGE_VERSION : 0x8B8C,
-	  SHORT : 0x1402,
-	  SRC_ALPHA : 0x0302,
-	  SRC_ALPHA_SATURATE : 0x0308,
-	  SRC_COLOR : 0x0300,
-	  STATIC_DRAW : 0x88E4,
-	  STENCIL_ATTACHMENT : 0x8D20,
-	  STENCIL_BACK_FAIL : 0x8801,
-	  STENCIL_BACK_FUNC : 0x8800,
-	  STENCIL_BACK_PASS_DEPTH_FAIL : 0x8802,
-	  STENCIL_BACK_PASS_DEPTH_PASS : 0x8803,
-	  STENCIL_BACK_REF : 0x8CA3,
-	  STENCIL_BACK_VALUE_MASK : 0x8CA4,
-	  STENCIL_BACK_WRITEMASK : 0x8CA5,
-	  STENCIL_BITS : 0x0D57,
-	  STENCIL_BUFFER_BIT : 0x00000400,
-	  STENCIL_CLEAR_VALUE : 0x0B91,
-	  STENCIL_FAIL : 0x0B94,
-	  STENCIL_FUNC : 0x0B92,
-	  STENCIL_INDEX : 0x1901,
-	  STENCIL_INDEX8 : 0x8D48,
-	  STENCIL_PASS_DEPTH_FAIL : 0x0B95,
-	  STENCIL_PASS_DEPTH_PASS : 0x0B96,
-	  STENCIL_REF : 0x0B97,
-	  STENCIL_TEST : 0x0B90,
-	  STENCIL_VALUE_MASK : 0x0B93,
-	  STENCIL_WRITEMASK : 0x0B98,
-	  STREAM_DRAW : 0x88E0,
-	  SUBPIXEL_BITS : 0x0D50,
-	  TEXTURE : 0x1702,
-	  TEXTURE0 : 0x84C0,
-	  TEXTURE1 : 0x84C1,
-	  TEXTURE10 : 0x84CA,
-	  TEXTURE11 : 0x84CB,
-	  TEXTURE12 : 0x84CC,
-	  TEXTURE13 : 0x84CD,
-	  TEXTURE14 : 0x84CE,
-	  TEXTURE15 : 0x84CF,
-	  TEXTURE16 : 0x84D0,
-	  TEXTURE17 : 0x84D1,
-	  TEXTURE18 : 0x84D2,
-	  TEXTURE19 : 0x84D3,
-	  TEXTURE2 : 0x84C2,
-	  TEXTURE20 : 0x84D4,
-	  TEXTURE21 : 0x84D5,
-	  TEXTURE22 : 0x84D6,
-	  TEXTURE23 : 0x84D7,
-	  TEXTURE24 : 0x84D8,
-	  TEXTURE25 : 0x84D9,
-	  TEXTURE26 : 0x84DA,
-	  TEXTURE27 : 0x84DB,
-	  TEXTURE28 : 0x84DC,
-	  TEXTURE29 : 0x84DD,
-	  TEXTURE3 : 0x84C3,
-	  TEXTURE30 : 0x84DE,
-	  TEXTURE31 : 0x84DF,
-	  TEXTURE4 : 0x84C4,
-	  TEXTURE5 : 0x84C5,
-	  TEXTURE6 : 0x84C6,
-	  TEXTURE7 : 0x84C7,
-	  TEXTURE8 : 0x84C8,
-	  TEXTURE9 : 0x84C9,
-	  TEXTURE_2D : 0x0DE1,
-	  TEXTURE_BINDING_2D : 0x8069,
-	  TEXTURE_BINDING_CUBE_MAP : 0x8514,
-	  TEXTURE_CUBE_MAP : 0x8513,
-	  TEXTURE_CUBE_MAP_NEGATIVE_X : 0x8516,
-	  TEXTURE_CUBE_MAP_NEGATIVE_Y : 0x8518,
-	  TEXTURE_CUBE_MAP_NEGATIVE_Z : 0x851A,
-	  TEXTURE_CUBE_MAP_POSITIVE_X : 0x8515,
-	  TEXTURE_CUBE_MAP_POSITIVE_Y : 0x8517,
-	  TEXTURE_CUBE_MAP_POSITIVE_Z : 0x8519,
-	  TEXTURE_MAG_FILTER : 0x2800,
-	  TEXTURE_MIN_FILTER : 0x2801,
-	  TEXTURE_WRAP_S : 0x2802,
-	  TEXTURE_WRAP_T : 0x2803,
-	  TRIANGLES : 0x0004,
-	  TRIANGLE_FAN : 0x0006,
-	  TRIANGLE_STRIP : 0x0005,
-	  UNPACK_ALIGNMENT : 0x0CF5,
-	  UNPACK_COLORSPACE_CONVERSION_WEBGL : 0x9243,
-	  UNPACK_FLIP_Y_WEBGL : 0x9240,
-	  UNPACK_PREMULTIPLY_ALPHA_WEBGL : 0x9241,
-	  UNSIGNED_BYTE : 0x1401,
-	  UNSIGNED_INT : 0x1405,
-	  UNSIGNED_SHORT : 0x1403,
-	  UNSIGNED_SHORT_4_4_4_4 : 0x8033,
-	  UNSIGNED_SHORT_5_5_5_1 : 0x8034,
-	  UNSIGNED_SHORT_5_6_5 : 0x8363,
-	  VALIDATE_STATUS : 0x8B83,
-	  VENDOR : 0x1F00,
-	  VERSION : 0x1F02,
-	  VERTEX_ATTRIB_ARRAY_BUFFER_BINDING : 0x889F,
-	  VERTEX_ATTRIB_ARRAY_ENABLED : 0x8622,
-	  VERTEX_ATTRIB_ARRAY_NORMALIZED : 0x886A,
-	  VERTEX_ATTRIB_ARRAY_POINTER : 0x8645,
-	  VERTEX_ATTRIB_ARRAY_SIZE : 0x8623,
-	  VERTEX_ATTRIB_ARRAY_STRIDE : 0x8624,
-	  VERTEX_ATTRIB_ARRAY_TYPE : 0x8625,
-	  VERTEX_SHADER : 0x8B31,
-	  VIEWPORT : 0x0BA2,
-	  ZERO : 0
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class timestamp
-	 *
-	 * @class
-	 * @returns {vgl.timestamp}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	var m_globalModifiedTime = 0;
-
-	vgl.timestamp = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.timestamp)) {
-	    return new vgl.timestamp();
-	  }
-
-	  var m_modifiedTime = 0;
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update modified time
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.modified = function () {
-	    m_globalModifiedTime += 1;
-	    m_modifiedTime = m_globalModifiedTime;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get modified time
-	   *
-	   * @returns {number}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.getMTime = function () {
-	    return m_modifiedTime;
-	  };
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class object
-	 *
-	 * @class
-	 * @returns {vgl.object}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.object = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.object)) {
-	    return new vgl.object();
-	  }
-
-	  /** @private */
-	  var m_modifiedTime = vgl.timestamp();
-	  m_modifiedTime.modified();
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Mark the object modified
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.modified = function () {
-	    m_modifiedTime.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return modified time of the object
-	   *
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getMTime = function () {
-	    return m_modifiedTime.getMTime();
-	  };
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class event
-	 *
-	 * @class event
-	 * @returns {vgl.event}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.event = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.event)) {
-	    return new vgl.event();
-	  }
-	  vgl.object.call(this);
-
-	  return this;
-	};
-
-	inherit(vgl.event, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 *  types
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.event.keyPress = 'vgl.event.keyPress';
-	vgl.event.mousePress = 'vgl.event.mousePress';
-	vgl.event.mouseRelease = 'vgl.event.mouseRelease';
-	vgl.event.contextMenu = 'vgl.event.contextMenu';
-	vgl.event.configure = 'vgl.event.configure';
-	vgl.event.enable = 'vgl.event.enable';
-	vgl.event.mouseWheel = 'vgl.event.mouseWheel';
-	vgl.event.keyRelease = 'vgl.event.keyRelease';
-	vgl.event.middleButtonPress = 'vgl.event.middleButtonPress';
-	vgl.event.startInteraction = 'vgl.event.startInteraction';
-	vgl.event.enter = 'vgl.event.enter';
-	vgl.event.rightButtonPress = 'vgl.event.rightButtonPress';
-	vgl.event.middleButtonRelease = 'vgl.event.middleButtonRelease';
-	vgl.event.char = 'vgl.event.char';
-	vgl.event.disable = 'vgl.event.disable';
-	vgl.event.endInteraction = 'vgl.event.endInteraction';
-	vgl.event.mouseMove = 'vgl.event.mouseMove';
-	vgl.event.mouseOut = 'vgl.event.mouseOut';
-	vgl.event.expose = 'vgl.event.expose';
-	vgl.event.timer = 'vgl.event.timer';
-	vgl.event.leftButtonPress = 'vgl.event.leftButtonPress';
-	vgl.event.leave = 'vgl.event.leave';
-	vgl.event.rightButtonRelease = 'vgl.event.rightButtonRelease';
-	vgl.event.leftButtonRelease = 'vgl.event.leftButtonRelease';
-	vgl.event.click = 'vgl.event.click';
-	vgl.event.dblClick = 'vgl.event.dblClick';
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class boundingObject
-	 *
-	 * @class
-	 * @return {vgl.boundingObject}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.boundingObject = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.boundingObject)) {
-	    return new vgl.boundingObject();
-	  }
-	  vgl.object.call(this);
-
-	  /** @private */
-	  var m_bounds = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
-	      m_computeBoundsTimestamp = vgl.timestamp(),
-	      m_boundsDirtyTimestamp = vgl.timestamp();
-
-	  m_computeBoundsTimestamp.modified();
-	  m_boundsDirtyTimestamp.modified();
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get current bounds of the object
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bounds = function () {
-	    return m_bounds;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if bounds are valid
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasValidBounds = function (bounds) {
-	    if (bounds[0] === Number.MAX_VALUE ||
-	        bounds[1] === -Number.MAX_VALUE ||
-	        bounds[2] === Number.MAX_VALUE ||
-	        bounds[3] === -Number.MAX_VALUE ||
-	        bounds[4] === Number.MAX_VALUE ||
-	        bounds[5] === -Number.MAX_VALUE) {
-	      return false;
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set current bounds of the object
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setBounds = function (minX, maxX, minY, maxY, minZ, maxZ) {
-	    if (!this.hasValidBounds([minX, maxX, minY, maxY, minZ, maxZ])) {
-	      return;
-	    }
-
-	    m_bounds[0] = minX;
-	    m_bounds[1] = maxX;
-	    m_bounds[2] = minY;
-	    m_bounds[3] = maxY;
-	    m_bounds[4] = minZ;
-	    m_bounds[5] = maxZ;
-
-	    this.modified();
-	    m_computeBoundsTimestamp.modified();
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Reset bounds to default values
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetBounds = function () {
-	    m_bounds[0] = Number.MAX_VALUE;
-	    m_bounds[1] = -Number.MAX_VALUE;
-	    m_bounds[2] = Number.MAX_VALUE;
-	    m_bounds[3] = -Number.MAX_VALUE;
-	    m_bounds[4] = Number.MAX_VALUE;
-	    m_bounds[5] = -Number.MAX_VALUE;
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute bounds of the object
-	   *
-	   * Should be implemented by the concrete class
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return bounds computation modification time
-	   *
-	   * @returns {vgl.timestamp}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBoundsTimestamp = function () {
-	    return m_computeBoundsTimestamp;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return bounds dirty timestamp
-	   *
-	   * @returns {vgl.timestamp}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.boundsDirtyTimestamp = function () {
-	    return m_boundsDirtyTimestamp;
-	  };
-
-	  this.resetBounds();
-
-	  return this;
-	};
-
-	vgl.boundingObject.ReferenceFrame = {
-	  'Relative' : 0,
-	  'Absolute' : 1
-	};
-
-	inherit(vgl.boundingObject, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class node
-	 *
-	 * @class
-	 * @returns {vgl.node}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.node = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.node)) {
-	    return new vgl.node();
-	  }
-	  vgl.boundingObject.call(this);
-
-	  /** @private */
-	  var m_parent = null,
-	      m_material = null,
-	      m_visible = true,
-	      m_overlay = false;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Accept visitor for scene traversal
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.accept = function (visitor) {
-	    visitor.visit(this);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return active material used by the node
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.material = function () {
-	    return m_material;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set material to be used the node
-	   *
-	   * @param material
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setMaterial = function (material) {
-	    if (material !== m_material) {
-	      m_material = material;
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if the node is visible or node
-	   *
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.visible = function () {
-	    return m_visible;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Turn ON/OFF visibility of the node
-	   *
-	   * @param flag
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setVisible = function (flag) {
-	    if (flag !== m_visible) {
-	      m_visible = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return current parent of the node
-	   *
-	   * @returns {null}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parent = function () {
-	    return m_parent;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set parent of the node
-	   *
-	   * @param parent
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setParent = function (parent) {
-	    if (parent !== m_parent) {
-	      if (m_parent !== null) {
-	        m_parent.removeChild(this);
-	      }
-	      m_parent = parent;
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if the node is an overlay node
-	   *
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.overlay = function () {
-	    return m_overlay;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set if the node is an overlay node or not
-	   *
-	   * @param flag
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setOverlay = function (flag) {
-	    if (m_overlay !== flag) {
-	      m_overlay = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /*
-	   * Traverse parent and their parent and so on
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.ascend = function (visitor) {
-	    visitor = visitor; /* unused parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Traverse children
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.traverse = function (visitor) {
-	    visitor = visitor; /* unused parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Mark that the bounds are modified
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.boundsModified = function () {
-	    // @todo Implement this
-	    this.boundsDirtyTimestamp().modified();
-
-	    if (m_parent !== null) {
-	      m_parent.boundsModified();
-	    }
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.node, vgl.boundingObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class groupNode
-	 *
-	 * @class
-	 * @returns {vgl.groupNode}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.groupNode = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.groupNode)) {
-	    return new vgl.groupNode();
-	  }
-	  vgl.node.call(this);
-
-	  var m_children = [];
-
-	  // Reference to base class methods
-	  this.b_setVisible = this.setVisible;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Turn on / off visibility
-	   *
-	   * @param flag
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setVisible = function (flag) {
-	    var i;
-
-	    if (this.b_setVisible(flag) !== true) {
-	      return false;
-	    }
-
-	    for (i = 0; i < m_children.length; i += 1) {
-	      m_children[i].setVisible(flag);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Make the incoming node as child of the group node
-	   *
-	   * @param childNode
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addChild = function (childNode) {
-	    if (childNode instanceof vgl.node) {
-	      if (m_children.indexOf(childNode) === -1) {
-	        childNode.setParent(this);
-	        m_children.push(childNode);
-	        this.boundsDirtyTimestamp().modified();
-	        return true;
-	      }
-	      return false;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove parent-child relationship between the group and incoming node
-	   *
-	   * @param childNode
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeChild = function (childNode) {
-	    if (childNode.parent() === this) {
-	      var index = m_children.indexOf(childNode);
-	      if (index >= 0) {
-	        m_children.splice(index, 1);
-	        childNode.setParent(null);
-	        this.boundsDirtyTimestamp().modified();
-	        return true;
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove parent-child relationship between child nodes and the group node
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeChildren = function () {
-	    while (m_children.length) {
-	      this.removeChild(m_children[0]);
-	    }
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return children of this group node
-	   *
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.children = function () {
-	    return m_children;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return true if this group node has node as a child, false otherwise.
-	   *
-	   * @param node
-	   * @returns {bool}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasChild = function (node) {
-	    var i = 0, child = false;
-
-	    for (i = 0; i < m_children.length; i += 1) {
-	      if (m_children[i] === node) {
-	        child = true;
-	        break;
-	      }
-	    }
-
-	    return child;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Accept a visitor and traverse the scene tree
-	   *
-	   * @param visitor
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.accept = function (visitor) {
-	    visitor.visit(this);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Traverse the scene
-	   *
-	   * @param visitor
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.traverse = function (visitor) {
-	    switch (visitor.type()) {
-	      case visitor.UpdateVisitor:
-	        this.traverseChildrenAndUpdateBounds(visitor);
-	        break;
-	      case visitor.CullVisitor:
-	        this.traverseChildren(visitor);
-	        break;
-	      default:
-	        break;
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Traverse all of the children and update the bounds for each
-	   *
-	   * @param visitor
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.traverseChildrenAndUpdateBounds = function (visitor) {
-	    var i;
-
-	    if (this.parent() && this.boundsDirtyTimestamp().getMTime() >
-	      this.computeBoundsTimestamp().getMTime()) {
-	      // Flag parents bounds dirty.
-	      this.parent().boundsDirtyTimestamp().modified();
-	    }
-
-	    this.computeBounds();
-
-	    if (visitor.mode() === visitor.TraverseAllChildren) {
-	      for (i = 0; i < m_children.length; i += 1) {
-	        m_children[i].accept(visitor);
-	        this.updateBounds(m_children[i]);
-	      }
-	    }
-
-	    this.computeBoundsTimestamp().modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Traverse children of the group node
-	   *
-	   * @param visitor
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.traverseChildren = function (visitor) {
-	    var i;
-
-	    if (visitor.mode() === visitor.TraverseAllChildren) {
-	      for (i = 0; i < m_children.length; i += 1) {
-	        m_children[i].accept(visitor);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute bounds for the group node
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	    var i = 0;
-
-	    if (this.computeBoundsTimestamp().getMTime() >
-	        this.boundsDirtyTimestamp().getMTime()) {
-	      return;
-	    }
-
-	    for (i = 0; i < m_children.length; i += 1) {
-	      this.updateBounds(m_children[i]);
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update bounds for the group node
-	   *
-	   * This method is used internally to update bounds of the group node by
-	   * traversing each of its child.
-	   *
-	   * @param child
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.updateBounds = function (child) {
-	    // FIXME: This check should not be required and possibly is incorrect
-	    if (child.overlay()) {
-	      return;
-	    }
-
-	    // Make sure that child bounds are up to date
-	    child.computeBounds();
-
-	    var bounds = this.bounds(),
-	        childBounds = child.bounds(),
-	        istep = 0,
-	        jstep = 0,
-	        i;
-
-	    for (i = 0; i < 3; i += 1) {
-	      istep = i * 2;
-	      jstep = i * 2 + 1;
-	      if (childBounds[istep] < bounds[istep]) {
-	        bounds[istep] = childBounds[istep];
-	      }
-	      if (childBounds[jstep] > bounds[jstep]) {
-	        bounds[jstep] = childBounds[jstep];
-	      }
-	    }
-
-	    this.setBounds(bounds[0], bounds[1], bounds[2], bounds[3],
-	                   bounds[4], bounds[5]);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.groupNode, vgl.node);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec3, mat4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class actor
-	 *
-	 * @class
-	 * @returns {vgl.actor}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.actor = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.actor)) {
-	    return new vgl.actor();
-	  }
-	  vgl.node.call(this);
-
-	  /** @private */
-	  var m_this = this,
-	      m_transformMatrix = mat4.create(),
-	      m_referenceFrame = vgl.boundingObject.ReferenceFrame.Relative,
-	      m_mapper = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get transformation matrix used by the actor
-	   *
-	   * @returns {mat4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.matrix = function () {
-	    return m_transformMatrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set transformation matrix for the actor
-	   *
-	   * @param {mat4} 4X4 transformation matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setMatrix = function (tmatrix) {
-	    if (tmatrix !== m_transformMatrix) {
-	      m_transformMatrix = tmatrix;
-	      m_this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get reference frame for the transformations
-	   *
-	   * @returns {String} Possible values are Absolute or Relative
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.referenceFrame = function () {
-	    return m_referenceFrame;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set reference frame for the transformations
-	   *
-	   * @param {vgl.boundingObject.ReferenceFrame}
-	   * referenceFrame Possible values are (Absolute | Relative)
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setReferenceFrame = function (referenceFrame) {
-	    if (referenceFrame !== m_referenceFrame) {
-	      m_referenceFrame = referenceFrame;
-	      m_this.modified();
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return mapper where actor gets it behavior and data
-	   *
-	   * @returns {vgl.mapper}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.mapper = function () {
-	    return m_mapper;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Connect an actor to its data source
-	   *
-	   * @param {vgl.mapper}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setMapper = function (mapper) {
-	    if (mapper !== m_mapper) {
-	      m_mapper = mapper;
-	      m_this.boundsModified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * @todo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.accept = function (visitor) {
-	    visitor = visitor; /* ignore this parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * @todo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.ascend = function (visitor) {
-	    visitor = visitor; /* ignore this parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute object space to world space matrix
-	   * @todo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeLocalToWorldMatrix = function (matrix, visitor) {
-	    matrix = matrix; /* ignore this parameter */
-	    visitor = visitor; /* ignore this parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute world space to object space matrix
-	   * @todo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeWorldToLocalMatrix = function (matrix, visitor) {
-	    matrix = matrix; /* ignore this parameter */
-	    visitor = visitor; /* ignore this parameter */
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute actor bounds
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	    if (m_mapper === null || m_mapper === undefined) {
-	      m_this.resetBounds();
-	      return;
-	    }
-
-	    var computeBoundsTimestamp = m_this.computeBoundsTimestamp(),
-	        mapperBounds, minPt, maxPt, newBounds;
-
-	    if (m_this.boundsDirtyTimestamp().getMTime() > computeBoundsTimestamp.getMTime() ||
-	      m_mapper.boundsDirtyTimestamp().getMTime() > computeBoundsTimestamp.getMTime()) {
-
-	      m_mapper.computeBounds();
-	      mapperBounds = m_mapper.bounds();
-
-	      minPt = [mapperBounds[0], mapperBounds[2], mapperBounds[4]];
-	      maxPt = [mapperBounds[1], mapperBounds[3], mapperBounds[5]];
-
-	      vec3.transformMat4(minPt, minPt, m_transformMatrix);
-	      vec3.transformMat4(maxPt, maxPt, m_transformMatrix);
-
-	      newBounds = [
-	        minPt[0] > maxPt[0] ? maxPt[0] : minPt[0],
-	        minPt[0] > maxPt[0] ? minPt[0] : maxPt[0],
-	        minPt[1] > maxPt[1] ? maxPt[1] : minPt[1],
-	        minPt[1] > maxPt[1] ? minPt[1] : maxPt[1],
-	        minPt[2] > maxPt[2] ? maxPt[2] : minPt[2],
-	        minPt[2] > maxPt[2] ? minPt[2] : maxPt[2]
-	      ];
-
-	      m_this.setBounds(newBounds[0], newBounds[1],
-	                     newBounds[2], newBounds[3],
-	                     newBounds[4], newBounds[5]);
-
-	      computeBoundsTimestamp.modified();
-	    }
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.actor, vgl.node);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Freeze javascript object
-	 *
-	 * @param obj
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.freezeObject = function (obj) {
-	  'use strict';
-
-	  /**
-	   * Freezes an object, using Object.freeze if available, otherwise returns
-	   * the object unchanged.  This function should be used in setup code to prevent
-	   * errors from completely halting JavaScript execution in legacy browsers.
-	   *
-	   * @exports freezeObject
-	   */
-	  var freezedObject = Object.freeze ? Object.freeze(obj) : undefined;
-	  if (typeof freezedObject === 'undefined') {
-	    return obj;
-	  }
-
-	  return freezedObject;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Returns the first parameter if not undefined,
-	 * otherwise the second parameter.
-	 *
-	 * @class
-	 * @returns {vgl.defaultValue}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.defaultValue = function (a, b) {
-	  'use strict';
-
-	  if (typeof a !== 'undefined') {
-	    return a;
-	  }
-	  return b;
-	};
-
-	vgl.defaultValue.EMPTY_OBJECT = vgl.freezeObject({});
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class graphicsObject
-	 *
-	 * @class
-	 * @param type
-	 * @returns {vgl.graphicsObject}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.graphicsObject = function (type) {
-	  'use strict';
-
-	  type = type; /* unused parameter */
-	  if (!(this instanceof vgl.graphicsObject)) {
-	    return new vgl.graphicsObject();
-	  }
-	  vgl.object.call(this);
-
-	  var m_this = this;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Setup (initialize) the object
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._setup = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove any resources acquired before deletion
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._cleanup = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind and activate
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bind = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind and deactivate
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   *
-	   * TODO: Change it to unbind (simple)
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.undoBind = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the object
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove the object and release its graphics resources
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.remove = function (renderState) {
-	    m_this._cleanup(renderState);
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.graphicsObject, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, Uint16Array*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of geojson reader
-	 *
-	 * This contains code that reads a geoJSON file and produces rendering
-	 * primitives from it.
-	 *
-	 * @class
-	 * @returns {vgl.geojsonReader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.geojsonReader = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.geojsonReader)) {
-	    return new vgl.geojsonReader();
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read scalars
-	   *
-	   * @param coordinates
-	   * @param geom
-	   * @param size_estimate
-	   * @param idx
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readScalars = function (coordinates, geom, size_estimate, idx) {
-	    var array = null,
-	        s = null,
-	        r = null,
-	        g = null,
-	        b = null;
-
-	    if (this.m_scalarFormat === 'values' && coordinates.length === 4) {
-	      s = coordinates[3];
-	      array = geom.sourceData(vgl.vertexAttributeKeys.Scalar);
-
-	      if (!array) {
-	        array = new vgl.sourceDataSf();
-	        if (this.m_scalarRange) {
-	          array.setScalarRange(this.m_scalarRange[0], this.m_scalarRange[1]);
-	        }
-	        if (size_estimate !== undefined) {
-	          //array.length = size_estimate; //no, slow on Safari
-	          array.data().length = size_estimate;
-	        }
-	        geom.addSource(array);
-	      }
-	      if (size_estimate === undefined) {
-	        array.pushBack(s);
-	      } else {
-	        array.insertAt(idx, s);
-	      }
-	    } else if (this.m_scalarFormat === 'rgb' && coordinates.length === 6) {
-	      array = geom.sourceData(vgl.vertexAttributeKeys.Color);
-	      if (!array) {
-	        array = new vgl.sourceDataC3fv();
-	        if (size_estimate !== undefined) {
-	          array.length = size_estimate * 3;
-	        }
-	        geom.addSource(array);
-	      }
-	      r = coordinates[3];
-	      g = coordinates[4];
-	      b = coordinates[5];
-	      if (size_estimate === undefined) {
-	        array.pushBack([r, g, b]);
-	      } else {
-	        array.insertAt(idx, [r, g, b]);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read point data
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readPoint = function (coordinates) {
-	    var geom = new vgl.geometryData(),
-	        vglpoints = new vgl.points(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        indices = new Uint16Array(1),
-	        x = null,
-	        y = null,
-	        z = null,
-	        i = null;
-
-	    geom.addSource(vglcoords);
-	    for (i = 0; i < 1; i += 1) {
-	      indices[i] = i;
-
-	      x = coordinates[0];
-	      y = coordinates[1];
-	      z = 0.0;
-	      if (coordinates.length > 2) {
-	        z = coordinates[2];
-	      }
-
-	      //console.log('read ' + x + ',' + y + ',' + z);
-	      vglcoords.pushBack([x, y, z]);
-
-	      //attributes
-	      this.readScalars(coordinates, geom);
-	    }
-
-	    vglpoints.setIndices(indices);
-	    geom.addPrimitive(vglpoints);
-	    geom.setName('aPoint');
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read multipoint data
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readMultiPoint = function (coordinates) {
-	    var geom = new vgl.geometryData(),
-	        vglpoints = new vgl.points(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        indices = new Uint16Array(coordinates.length),
-	        pntcnt = 0,
-	        estpntcnt = coordinates.length,
-	        x = null,
-	        y = null,
-	        z = null,
-	        i;
-
-	    //preallocate with size estimate
-	    vglcoords.data().length = estpntcnt * 3; //x,y,z
-
-	    for (i = 0; i < coordinates.length; i += 1) {
-	      indices[i] = i;
-	      x = coordinates[i][0];
-	      y = coordinates[i][1];
-	      z = 0.0;
-	      if (coordinates[i].length > 2) {
-	        z = coordinates[i][2];
-	      }
-
-	      //console.log('read ' + x + ',' + y + ',' + z);
-	      vglcoords.insertAt(pntcnt, [x, y, z]);
-
-	      //attributes
-	      this.readScalars(coordinates[i], geom, estpntcnt, pntcnt);
-
-	      pntcnt += 1;
-	    }
-
-	    vglpoints.setIndices(indices);
-	    geom.addPrimitive(vglpoints);
-	    geom.addSource(vglcoords);
-	    geom.setName('manyPoints');
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read line string data
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readLineString = function (coordinates) {
-	    var geom = new vgl.geometryData(),
-	        vglline = new vgl.lineStrip(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        indices = [],
-	        i = null,
-	        x = null,
-	        y = null,
-	        z = null;
-
-	    vglline.setIndicesPerPrimitive(coordinates.length);
-
-	    for (i = 0; i < coordinates.length; i += 1) {
-	      indices.push(i);
-	      x = coordinates[i][0];
-	      y = coordinates[i][1];
-	      z = 0.0;
-	      if (coordinates[i].length > 2) {
-	        z = coordinates[i][2];
-	      }
-
-	      //console.log('read ' + x + ',' + y + ',' + z);
-	      vglcoords.pushBack([x, y, z]);
-
-	      //attributes
-	      this.readScalars(coordinates[i], geom);
-	    }
-
-	    vglline.setIndices(indices);
-	    geom.addPrimitive(vglline);
-	    geom.addSource(vglcoords);
-	    geom.setName('aLineString');
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read multi line string
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readMultiLineString = function (coordinates) {
-	    var geom = new vgl.geometryData(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        pntcnt = 0,
-	        //lines should be at least 2 verts long, underest OK
-	        estpntcnt = coordinates.length * 2,
-	        i = null,
-	        j = null,
-	        x = null,
-	        y = null,
-	        z = null,
-	        indices = null,
-	        vglline = null,
-	        thisLineLength = null;
-
-	    // Preallocate with size estimate
-	    vglcoords.data().length = estpntcnt * 3; //x,y,z
-
-	    for (j = 0; j < coordinates.length; j += 1) {
-	      indices = [];
-	      //console.log('getting line ' + j);
-	      vglline = new vgl.lineStrip();
-	      thisLineLength = coordinates[j].length;
-	      vglline.setIndicesPerPrimitive(thisLineLength);
-	      for (i = 0; i < thisLineLength; i += 1) {
-	        indices.push(pntcnt);
-	        x = coordinates[j][i][0];
-	        y = coordinates[j][i][1];
-	        z = 0.0;
-	        if (coordinates[j][i].length > 2) {
-	          z = coordinates[j][i][2];
-	        }
-
-	        //console.log('read ' + x + ',' + y + ',' + z);
-	        vglcoords.insertAt(pntcnt, [x, y, z]);
-
-	        //attributes
-	        this.readScalars(coordinates[j][i], geom, estpntcnt * 2, pntcnt);
-
-	        pntcnt += 1;
-	      }
-
-	      vglline.setIndices(indices);
-	      geom.addPrimitive(vglline);
-	    }
-
-	    geom.setName('aMultiLineString');
-	    geom.addSource(vglcoords);
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read polygon data
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readPolygon = function (coordinates) {
-	    //TODO: ignoring holes given in coordinates[1...]
-	    //TODO: ignoring convex
-	    //TODO: implement ear clipping in VGL instead of this to handle both
-	    var geom = new vgl.geometryData(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        x = null,
-	        y = null,
-	        z = null,
-	        thisPolyLength = coordinates[0].length,
-	        vl = 1,
-	        i = null,
-	        indices = null,
-	        vgltriangle = null;
-
-	    for (i = 0; i < thisPolyLength; i += 1) {
-	      x = coordinates[0][i][0];
-	      y = coordinates[0][i][1];
-	      z = 0.0;
-	      if (coordinates[0][i].length > 2) {
-	        z = coordinates[0][i][2];
-	      }
-
-	      //console.log('read ' + x + ',' + y + ',' + z);
-	      vglcoords.pushBack([x, y, z]);
-
-	      //attributes
-	      this.readScalars(coordinates[0][i], geom);
-
-	      if (i > 1) {
-	        //console.log('Cutting new triangle 0,'+ vl+ ','+ i);
-	        indices = new Uint16Array([0, vl, i]);
-	        vgltriangle = new vgl.triangles();
-	        vgltriangle.setIndices(indices);
-	        geom.addPrimitive(vgltriangle);
-	        vl = i;
-	      }
-	    }
-
-	    geom.setName('POLY');
-	    geom.addSource(vglcoords);
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read multi polygon data
-	   *
-	   * @param coordinates
-	   * @returns {vgl.geometryData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readMultiPolygon = function (coordinates) {
-	    var geom = new vgl.geometryData(),
-	        vglcoords = new vgl.sourceDataP3fv(),
-	        ccount = 0,
-	        numPolys = coordinates.length,
-	        pntcnt = 0,
-	        estpntcnt = numPolys * 3, // assume triangles, underest is fine
-	        vgltriangle = new vgl.triangles(),
-	        indexes = [],
-	        i = null,
-	        j = null,
-	        x = null,
-	        y = null,
-	        z = null,
-	        thisPolyLength = null,
-	        vf = null,
-	        vl = null,
-	        flip = null,
-	        flipped = false,
-	        tcount = 0;
-
-	    //var time1 = new Date().getTime()
-	    //var a = 0;
-	    //var b = 0;
-	    //var c = 0;
-	    //var d = 0;
-
-	    //preallocate with size estimate
-	    vglcoords.data().length = numPolys * 3; //x,y,z
-	    for (j = 0; j < numPolys; j += 1) {
-	      //console.log('getting poly ' + j);
-
-	      thisPolyLength = coordinates[j][0].length;
-	      vf = ccount;
-	      vl = ccount + 1;
-	      flip = [false, false, false];
-	      for (i = 0; i < thisPolyLength; i += 1) {
-	        //var timea = new Date().getTime()
-
-	        x = coordinates[j][0][i][0];
-	        y = coordinates[j][0][i][1];
-	        z = 0.0;
-	        if (coordinates[j][0][i].length > 2) {
-	          z = coordinates[j][0][i][2];
-	        }
-	        flipped = false;
-	        if (x > 180) {
-	          flipped = true;
-	          x = x - 360;
-	        }
-	        if (i === 0) {
-	          flip[0] = flipped;
-	        } else {
-	          flip[1 + (i - 1) % 2] = flipped;
-	        }
-	        //var timeb = new Date().getTime();
-	        //console.log('read ' + x + ',' + y + ',' + z);
-
-	        vglcoords.insertAt(pntcnt, [x, y, z]);
-	        //var timec = new Date().getTime();
-
-	        //attributes
-	        this.readScalars(coordinates[j][0][i], geom, estpntcnt, pntcnt);
-	        pntcnt += 1;
-	        //var timed = new Date().getTime()
-
-	        if (i > 1) {
-	          //if (vl < 50) {
-	          //console.log('Cutting new triangle ' + tcount + ':' + vf + ',' +
-	          //            vl + ',' + ccount);
-	          //console.log(indexes);
-	          //}
-	          if (flip[0] === flip[1] && flip[1] === flip[2]) {
-	            //indexes = indexes.concat([vf,vl,ccount]); //no, very slow in Safari
-	            indexes[tcount * 3 + 0] = vf;
-	            indexes[tcount * 3 + 1] = vl;
-	            indexes[tcount * 3 + 2] = ccount;
-	            tcount += 1;
-	          }
-	          //else {
-	          //  //TODO: duplicate triangles that straddle boundary on either side
-	          //}
-
-	          vl = ccount;
-	        }
-	        ccount += 1;
-	        //var timee = new Date().getTime()
-	        //a = a + (timeb-timea)
-	        //b = b + (timec-timeb)
-	        //c = c + (timed-timec)
-	        //d = d + (timee-timed)
-	      }
-	    }
-	    vgltriangle.setIndices(indexes);
-	    geom.addPrimitive(vgltriangle);
-
-	    //console.log('NUMPOLYS ' + pntcnt);
-	    //console.log('RMP: ', a, ',', b, ',', c, ',', d)
-	    //var time2 = new Date().getTime()
-
-	    geom.setName('aMultiPoly');
-	    geom.addSource(vglcoords);
-	    //var time3 = new Date().getTime()
-	    //console.log('RMP: ', time2-time1, ',', time3-time2)
-
-	    return geom;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * @param object
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readGJObjectInt = function (object) {
-	    if (!object.hasOwnProperty('type')) {
-	      //console.log('uh oh, not a geojson object');
-	      return null;
-	    }
-
-	    //look for properties type annotation
-	    if (object.properties &&
-	        object.properties.ScalarFormat &&
-	        object.properties.ScalarFormat === 'values') {
-	      this.m_scalarFormat = 'values';
-	      if (object.properties.ScalarRange) {
-	        this.m_scalarRange = object.properties.ScalarRange;
-	      }
-	    }
-	    if (object.properties &&
-	        object.properties.ScalarFormat &&
-	        object.properties.ScalarFormat === 'rgb') {
-	      this.m_scalarFormat = 'rgb';
-	    }
-
-	    //TODO: ignoring 'crs' and 'bbox' and misc meta data on all of these,
-	    //best to handle as references into original probably
-	    var ret,
-	        type = object.type,
-	        next = null,
-	        nextset = null,
-	        i = null;
-
-	    switch (type) {
-	      case 'Point':
-	        //console.log('parsed Point');
-	        ret = this.readPoint(object.coordinates);
-	        break;
-	      case 'MultiPoint':
-	        //console.log('parsed MultiPoint');
-	        ret = this.readMultiPoint(object.coordinates);
-	        break;
-	      case 'LineString':
-	        //console.log('parsed LineString');
-	        ret = this.readLineString(object.coordinates);
-	        break;
-	      case 'MultiLineString':
-	        //console.log('parsed MultiLineString');
-	        ret = this.readMultiLineString(object.coordinates);
-	        break;
-	      case 'Polygon':
-	        //console.log('parsed Polygon');
-	        ret = this.readPolygon(object.coordinates);
-	        break;
-	      case 'MultiPolygon':
-	        //console.log('parsed MultiPolygon');
-	        ret = this.readMultiPolygon(object.coordinates);
-	        break;
-	      case 'GeometryCollection':
-	        //console.log('parsed GeometryCollection');
-	        nextset = [];
-	        for (i = 0; i < object.geometries.length; i += 1) {
-	          next = this.readGJObject(object.geometries[i]);
-	          nextset.push(next);
-	        }
-	        ret = nextset;
-	        break;
-	      case 'Feature':
-	        //console.log('parsed Feature');
-	        next = this.readGJObject(object.geometry);
-	        ret = next;
-	        break;
-	      case 'FeatureCollection':
-	        //console.log('parsed FeatureCollection');
-	        nextset = [];
-	        for (i = 0; i < object.features.length; i += 1) {
-	          next = this.readGJObject(object.features[i]);
-	          nextset.push(next);
-	        }
-	        ret = nextset;
-	        break;
-	      default:
-	        console.log('Don\'t understand type ' + type);
-	        ret = null;
-	        break;
-	    }
-	    return ret;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * @param object
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readGJObject = function (object) {
-	    //var time1, time2;
-	    var ret;
-	    //time1 = new Date().getTime()
-	    ret = this.readGJObjectInt(object);
-	    //time2 = new Date().getTime()
-	    //console.log('ELAPSED: ', time2-time1)
-	    return ret;
-	  };
-
-	  /**
-	   * Linearize geometries
-	   *
-	   * @param geoms
-	   * @param geom
-	   */
-	  this.linearizeGeoms = function (geoms, geom) {
-	    var i = null;
-
-	    if (Object.prototype.toString.call(geom) === '[object Array]') {
-	      for (i = 0; i < geom.length; i += 1) {
-	        this.linearizeGeoms(geoms, geom[i]);
-	      }
-	    } else {
-	      geoms.push(geom);
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Read geometries from geojson object
-	   *
-	   * @param object
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readGeomObject = function (object) {
-	    var geom,
-	        geoms = [];
-
-	    geom = this.readGJObject(object);
-	    this.linearizeGeoms(geoms, geom);
-	    return geoms;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Given a buffer get rendering primitives
-	   *
-	   * @param buffer
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getPrimitives = function (buffer) {
-	    //console.log('Parsing geoJSON');
-	    if (!buffer) {
-	      return [];
-	    }
-
-	    var obj = JSON.parse(buffer),
-	        geom = this.readGJObject(obj),
-	        geoms = [];
-
-	    this.m_scalarFormat = 'none';
-	    this.m_scalarRange = null;
-
-	    this.linearizeGeoms(geoms, geom);
-
-	    return { 'geoms': geoms,
-	             'scalarFormat': this.m_scalarFormat,
-	             'scalarRange': this.m_scalarRange };
-	  };
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	vgl.data = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.data)) {
-	    return new vgl.data();
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return data type. Should be implemented by the derived class
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.type = function () {
-	  };
-	};
-
-	vgl.data.raster = 0;
-	vgl.data.point = 1;
-	vgl.data.lineString = 2;
-	vgl.data.polygon = 3;
-	vgl.data.geometry = 10;
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, Uint16Array, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class primitive
-	 *
-	 * @class
-	 * @return {vgl.primitive}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.primitive = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.primitive)) {
-	    return new vgl.primitive();
-	  }
-
-	  /** @private */
-	  var m_indicesPerPrimitive = 0,
-	      m_primitiveType = 0,
-	      m_indicesValueType = 0,
-	      m_indices = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get indices of the primitive
-	   *
-	   * @returns {null}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.indices = function () {
-	    return m_indices;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create indices array for the primitive
-	   * @param type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.createIndices = function (type) {
-	    void type;
-	    // TODO Check for the type
-	    m_indices = new Uint16Array();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return the number of indices
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.numberOfIndices = function () {
-	    return m_indices.length;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return size of indices in bytes
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.sizeInBytes = function () {
-	    return m_indices.length * Uint16Array.BYTES_PER_ELEMENT;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /*
-	   * Return primitive type g
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.primitiveType = function () {
-	    return m_primitiveType;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set primitive type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPrimitiveType = function (type) {
-	    m_primitiveType = type;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return count of indices that form a primitives
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.indicesPerPrimitive = function () {
-	    return m_indicesPerPrimitive;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set count of indices that form a primitive
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setIndicesPerPrimitive = function (count) {
-	    m_indicesPerPrimitive = count;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return indices value type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.indicesValueType = function () {
-	    return m_indicesValueType;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set indices value type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setIndicesValueType = function (type) {
-	    m_indicesValueType = type;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set indices from a array
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setIndices = function (indicesArray) {
-	    // TODO Check for the type
-	    m_indices = new Uint16Array(indicesArray);
-	  };
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class triangleStrip
-	 *
-	 * @returns {vgl.triangleStrip}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.triangleStrip = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.triangleStrip)) {
-	    return new vgl.triangleStrip();
-	  }
-
-	  vgl.primitive.call(this);
-
-	  this.setPrimitiveType(vgl.GL.TRIANGLE_STRIP);
-	  this.setIndicesValueType(vgl.GL.UNSIGNED_SHORT);
-	  this.setIndicesPerPrimitive(3);
-
-	  return this;
-	};
-
-	inherit(vgl.triangleStrip, vgl.primitive);
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class triangles
-	 *
-	 * @returns {vgl.triangles}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.triangles = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.triangles)) {
-	    return new vgl.triangles();
-	  }
-	  vgl.primitive.call(this);
-
-	  this.setPrimitiveType(vgl.GL.TRIANGLES);
-	  this.setIndicesValueType(vgl.GL.UNSIGNED_SHORT);
-	  this.setIndicesPerPrimitive(3);
-
-	  return this;
-	};
-
-	inherit(vgl.triangles, vgl.primitive);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * create a instance of lines primitive type
-	 *
-	 * @returns {vgl.lines}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.lines = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.lines)) {
-	    return new vgl.lines();
-	  }
-	  vgl.primitive.call(this);
-
-	  this.setPrimitiveType(vgl.GL.LINES);
-	  this.setIndicesValueType(vgl.GL.UNSIGNED_SHORT);
-	  this.setIndicesPerPrimitive(2);
-
-	  return this;
-	};
-	inherit(vgl.lines, vgl.primitive);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * create a instance of line strip primitive type
-	 *
-	 * @returns {vgl.lineStrip}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.lineStrip = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.lineStrip)) {
-	    return new vgl.lineStrip();
-	  }
-	  vgl.primitive.call(this);
-
-	  this.setPrimitiveType(vgl.GL.LINE_STRIP);
-	  this.setIndicesValueType(vgl.GL.UNSIGNED_SHORT);
-	  this.setIndicesPerPrimitive(2);
-
-	  return this;
-	};
-	inherit(vgl.lineStrip, vgl.primitive);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class points
-	 *
-	 * @returns {vgl.points}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.points = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.points)) {
-	    return new vgl.points();
-	  }
-	  vgl.primitive.call(this);
-
-	  this.setPrimitiveType(vgl.GL.POINTS);
-	  this.setIndicesValueType(vgl.GL.UNSIGNED_SHORT);
-	  this.setIndicesPerPrimitive(1);
-
-	  return this;
-	};
-
-	inherit(vgl.points, vgl.primitive);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class vertexDataP3f
-	 *
-	 * @returns {vgl.vertexDataP3f}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.vertexDataP3f = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.vertexDataP3f)) {
-	    return new vgl.vertexDataP3f();
-	  }
-
-	  /** @private */
-	  this.m_position = [];
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class vertexDataP3N3f
-	 *
-	 * @class
-	 * @returns {vgl.vertexDataP3N3f}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.vertexDataP3N3f = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.vertexDataP3N3f)) {
-	    return new vgl.vertexDataP3N3f();
-	  }
-
-	  this.m_position = [];
-	  this.m_normal = [];
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class vertexDataP3T3f
-	 *
-	 * @class
-	 * @returns {vgl.vertexDataP3T3f}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.vertexDataP3T3f = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.vertexDataP3T3f)) {
-	    return new vgl.vertexDataP3T3f();
-	  }
-
-	  this.m_position = [];
-	  this.m_texCoordinate = [];
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceData
-	 * @class
-	 * @returns {vgl.sourceData}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceData = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceData)) {
-	    return new vgl.sourceData(arg);
-	  }
-
-	  arg = arg || {};
-	  var m_attributesMap = {},
-	      m_data = [],
-	      m_name = arg.name || 'Source ' + new Date().toISOString(),
-
-	      ////////////////////////////////////////////////////////////////////////
-	      /**
-	       * Attribute data for the source
-	       */
-	      ////////////////////////////////////////////////////////////////////////
-	      vglAttributeData = function () {
-	        // Number of components per group
-	        // Type of data type (GL_FLOAT etc)
-	        this.m_numberOfComponents = 0;
-	        // Size of data type
-	        this.m_dataType = 0;
-	        this.m_dataTypeSize = 0;
-	        // Specifies whether fixed-point data values should be normalized
-	        // (true) or converted directly as fixed-point values (false)
-	        // when they are accessed.
-	        this.m_normalized = false;
-	        // Strides for each attribute.
-	        this.m_stride = 0;
-	        // Offset
-	        this.m_offset = 0;
-	      };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return raw data for this source
-	   *
-	   * @returns {Array or Float32Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.data = function () {
-	    return m_data;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return raw data for this source
-	   *
-	   * @returns {Array or Float32Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getData = function () {
-	    return this.data();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * If the raw data is not a Float32Array, convert it to one.  Then, return
-	   * raw data for this source
-	   *
-	   * @returns {Float32Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.dataToFloat32Array = function () {
-	    if (!(m_data instanceof Float32Array)) {
-	      m_data = new Float32Array(m_data);
-	    }
-	    return m_data;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set data for this source
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setData = function (data) {
-	    if (!(data instanceof Array) && !(data instanceof Float32Array)) {
-	      console.log('[error] Requires array');
-	      return;
-	    }
-	    if (data instanceof Float32Array) {
-	      m_data = data;
-	    } else {
-	      m_data = data.slice(0);
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add new attribute data to the source
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addAttribute = function (key, dataType, sizeOfDataType, offset, stride,
-	                               noOfComponents, normalized) {
-
-	    if (!m_attributesMap.hasOwnProperty(key)) {
-	      /* jshint newcap: false */
-	      //jscs:disable requireCapitalizedConstructors
-	      var newAttr = new vglAttributeData();
-	      //jscs:enable requireCapitalizedConstructors
-	      /* jshint newcap: true */
-	      newAttr.m_dataType = dataType;
-	      newAttr.m_dataTypeSize = sizeOfDataType;
-	      newAttr.m_offset = offset;
-	      newAttr.m_stride = stride;
-	      newAttr.m_numberOfComponents = noOfComponents;
-	      newAttr.m_normalized = normalized;
-	      m_attributesMap[key] = newAttr;
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return size of the source data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.sizeOfArray = function () {
-	    return Object.size(m_data);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return length of array
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.lengthOfArray = function () {
-	    return m_data.length;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return size of the source data in bytes
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  /*
-	    * TODO: code below is probably wrong.
-	    *   Example:
-	    *            format P3N3f
-	    *            m_data = [ 1, 2, 3, 4, 5, 6 ]; // contains one vertex,
-	    *                                    // one normal, m_data.length == 6
-	    *
-	    *       The inner loop computes:
-	    *             sizeInBytes += 3 * 4; // for position
-	    *             sizeInBytes += 3 * 4; // for normal
-	    *
-	    *        Then sizeInBytes *= 6; // m_data.length == 6
-	    *        which gives sizeInBytes == 144 bytes when it should have been 4*6 = 24
-	    */
-	  this.sizeInBytes = function () {
-	    var sizeInBytes = 0,
-	        keys = this.keys(), i;
-
-	    for (i = 0; i < keys.length; i += 1) {
-	      sizeInBytes += this.attributeNumberOfComponents(keys[i]) *
-	                     this.sizeOfAttributeDataType(keys[i]);
-	    }
-
-	    sizeInBytes *= this.sizeOfArray();
-
-	    return sizeInBytes;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if there is attribute exists of a given key type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasKey = function (key) {
-	    return m_attributesMap.hasOwnProperty(key);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return keys of all attributes
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.keys = function () {
-	    return Object.keys(m_attributesMap);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return number of attributes of source data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.numberOfAttributes = function () {
-	    return Object.size(m_attributesMap);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return number of components of the attribute data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.attributeNumberOfComponents = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_numberOfComponents;
-	    }
-
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return if the attribute data is normalized
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.normalized = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_normalized;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return size of the attribute data type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.sizeOfAttributeDataType = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_dataTypeSize;
-	    }
-
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return attribute data type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.attributeDataType = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_dataType;
-	    }
-
-	    return undefined;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return attribute offset
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.attributeOffset = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_offset;
-	    }
-
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return attribute stride
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.attributeStride = function (key) {
-	    if (m_attributesMap.hasOwnProperty(key)) {
-	      return m_attributesMap[key].m_stride;
-	    }
-
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Virtual function to insert new vertex data at the end
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.pushBack = function (vertexData) {
-	    void vertexData;
-	    // Should be implemented by the base class
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Insert new data block to the raw data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.insert = function (data) {
-	    var i;
-
-	    //m_data = m_data.concat(data); //no, slow on Safari
-	    /* If we will are given a Float32Array and don't have any other data, use
-	     * it directly. */
-	    if (!m_data.length && data.length && data instanceof Float32Array) {
-	      m_data = data;
-	      return;
-	    }
-	    /* If our internal array is immutable and we will need to change it, create
-	     * a regular mutable array from it. */
-	    if (!m_data.slice && (m_data.length || !data.slice)) {
-	      m_data = Array.prototype.slice.call(m_data);
-	    }
-	    if (!data.length) {
-	      /* data is a singular value, so append it to our array */
-	      m_data[m_data.length] = data;
-	    } else {
-	      /* We don't have any data currently, so it is faster to copy the data
-	       * using slice. */
-	      if (!m_data.length && data.slice) {
-	        m_data = data.slice(0);
-	      } else {
-	        for (i = 0; i < data.length; i += 1) {
-	          m_data[m_data.length] = data[i];
-	        }
-	      }
-	    }
-	  };
-
-	  this.insertAt = function (index, data) {
-	    var i;
-
-	    if (!data.length) {
-	      m_data[index] = data;
-	    } else {
-	      for (i = 0; i < data.length; i += 1) {
-	        m_data[index * data.length + i] = data[i];
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return name of the source data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.name = function () {
-	    return m_name;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set name of the source data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setName = function (name) {
-	    m_name = name;
-	  };
-
-	  return this;
-	};
-
-	vgl.sourceDataAnyfv = function (size, key, arg) {
-	  'use strict';
-	  if (!(this instanceof vgl.sourceDataAnyfv)) {
-	    return new vgl.sourceDataAnyfv(size, key, arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-	  this.addAttribute(key, vgl.GL.FLOAT,
-	                    4, 0, size * 4, size, false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value);
-	  };
-
-	  return this;
-	};
-	inherit(vgl.sourceDataAnyfv, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataP3T3f
-	 *
-	 * @returns {vgl.sourceDataP3T3f}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataP3T3f = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataP3T3f)) {
-	    return new vgl.sourceDataP3T3f(arg);
-	  }
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Position, vgl.GL.FLOAT, 4, 0, 6 * 4, 3,
-	                    false);
-	  this.addAttribute(vgl.vertexAttributeKeys.TextureCoordinate, vgl.GL.FLOAT, 4, 12,
-	                    6 * 4, 3, false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value.m_position);
-	    this.insert(value.m_texCoordinate);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataP3T3f, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataP3N3f
-	 *
-	 * @returns {vgl.sourceDataP3N3f}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataP3N3f = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataP3N3f)) {
-	    return new vgl.sourceDataP3N3f(arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Position, vgl.GL.FLOAT, 4, 0, 6 * 4, 3,
-	                    false);
-	  this.addAttribute(vgl.vertexAttributeKeys.Normal, vgl.GL.FLOAT, 4, 12, 6 * 4, 3,
-	                    false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value.m_position);
-	    this.insert(value.m_normal);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataP3N3f, vgl.sourceData);
-
-	/////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataP3fv
-	 *
-	 * @returns {vgl.sourceDataP3fv}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataP3fv = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataP3fv)) {
-	    return new vgl.sourceDataP3fv(arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Position, vgl.GL.FLOAT, 4, 0, 3 * 4, 3,
-	                    false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataP3fv, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataT2fv
-	 *
-	 * @returns {vgl.sourceDataT2fv}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataT2fv = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataT2fv)) {
-	    return new vgl.sourceDataT2fv(arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.TextureCoordinate, vgl.GL.FLOAT, 4, 0,
-	                    2 * 4, 2, false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataT2fv, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataC3fv
-	 *
-	 * @returns {vgl.sourceDataC3fv}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataC3fv = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataC3fv)) {
-	    return new vgl.sourceDataC3fv(arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Color, vgl.GL.FLOAT, 4, 0, 3 * 4, 3, false);
-
-	  this.pushBack = function (value) {
-	    this.insert(value);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataC3fv, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataSf meant to hold scalar float values
-	 *
-	 * @class
-	 * @returns {vgl.sourceDataSf}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataSf = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataSf)) {
-	    return new vgl.sourceDataSf(arg);
-	  }
-
-	  var m_min = null,
-	      m_max = null,
-	      m_fixedmin = null,
-	      m_fixedmax = null;
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Scalar, vgl.GL.FLOAT, 4, 0, 4, 1, false);
-
-	  this.pushBack = function (value) {
-	    if (m_max === null || value > m_max) {
-	      m_max = value;
-	    }
-	    if (m_min === null || value < m_min) {
-	      m_min = value;
-	    }
-	    //this.insert(value); //no, slow on Safari
-	    this.data()[this.data().length] = value;
-	  };
-
-	  this.insertAt = function (index, value) {
-	    if (m_max === null || value > m_max) {
-	      m_max = value;
-	    }
-	    if (m_min === null || value < m_min) {
-	      m_min = value;
-	    }
-	    //call superclass ??
-	    //vgl.sourceData.insertAt.call(this, index, value);
-	    this.data()[index] = value;
-	  };
-
-	  this.scalarRange = function () {
-	    if (m_fixedmin === null || m_fixedmax === null) {
-	      return [m_min, m_max];
-	    }
-
-	    return [m_fixedmin, m_fixedmax];
-	  };
-
-	  this.setScalarRange = function (min, max) {
-	    m_fixedmin = min;
-	    m_fixedmax = max;
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataSf, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class sourceDataDf meant to hold data float values
-	 *
-	 * This source array is the best way to pass a array of floats to the shader
-	 * that has one entry for each of the vertices.
-	 *
-	 * @class
-	 * @returns {vgl.sourceDataDf}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.sourceDataDf = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.sourceDataDf)) {
-	    return new vgl.sourceDataDf(arg);
-	  }
-
-	  vgl.sourceData.call(this, arg);
-
-	  this.addAttribute(vgl.vertexAttributeKeys.Scalar, vgl.GL.FLOAT,
-	                    4, 0, 4, 1, false);
-
-	  this.pushBack = function (value) {
-	    this.data()[this.data().length] = value;
-	  };
-
-	  this.insertAt = function (index, value) {
-	    this.data()[index] = value;
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.sourceDataDf, vgl.sourceData);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class geometryData
-	 *
-	 * @class
-	 * @returns {vgl.geometryData}
-	 */
-	/////////////////////////////////////////////////////////////////////////////
-	vgl.geometryData = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.geometryData)) {
-	    return new vgl.geometryData();
-	  }
-	  vgl.data.call(this);
-
-	  /** @private */
-	  var m_name = '',
-	      m_primitives = [],
-	      m_sources = [],
-	      m_bounds = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0],
-	      m_computeBoundsTimestamp = vgl.timestamp(),
-	      m_boundsDirtyTimestamp = vgl.timestamp();
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return type
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.type = function () {
-	    return vgl.data.geometry;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return ID of the geometry data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.name = function () {
-	    return m_name;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set name of the geometry data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setName = function (name) {
-	    m_name = name;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add new source
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addSource = function (source, sourceName) {
-	    // @todo Check if the incoming source has duplicate keys
-
-	    if (sourceName !== undefined) {
-	      source.setName(sourceName);
-	    }
-	    // NOTE This might not work on IE8 or lower
-	    if (m_sources.indexOf(source) === -1) {
-	      m_sources.push(source);
-
-	      if (source.hasKey(vgl.vertexAttributeKeys.Position)) {
-	        m_boundsDirtyTimestamp.modified();
-	      }
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return source for a given index. Returns 0 if not found.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.source = function (index) {
-	    if (index < m_sources.length) {
-	      return m_sources[index];
-	    }
-
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return source with a specified name.  Returns 0 if not found.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.sourceByName = function (sourceName) {
-	    for (var i = 0; i < m_sources.length; i += 1) {
-	      if (m_sources[i].name() === sourceName) {
-	        return m_sources[i];
-	      }
-	    }
-	    return 0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return number of sources
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.numberOfSources = function () {
-	    return m_sources.length;
-	  };
-
-	  /**
-	   * Return source data given a key
-	   */
-	  this.sourceData = function (key) {
-	    var i;
-
-	    for (i = 0; i < m_sources.length; i += 1) {
-	      if (m_sources[i].hasKey(key)) {
-	        return m_sources[i];
-	      }
-	    }
-
-	    return null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add new primitive
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addPrimitive = function (primitive) {
-	    m_primitives.push(primitive);
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return primitive for a given index. Returns null if not found.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.primitive = function (index) {
-	    if (index < m_primitives.length) {
-	      return m_primitives[index];
-	    }
-
-	    return null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return number of primitives
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.numberOfPrimitives = function () {
-	    return m_primitives.length;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return bounds [minX, maxX, minY, maxY, minZ, maxZ]
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bounds = function () {
-	    if (m_boundsDirtyTimestamp.getMTime() > m_computeBoundsTimestamp.getMTime()) {
-	      this.computeBounds();
-	    }
-	    return m_bounds;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if bounds are dirty or mark them as such.
-	   *
-	   * @param dirty: true to set bounds as dirty.
-	   * Return true if bounds are dirty.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.boundsDirty = function (dirty) {
-	    if (dirty) {
-	      m_boundsDirtyTimestamp.modified();
-	    }
-	    return m_boundsDirtyTimestamp.getMTime() > m_computeBoundsTimestamp.getMTime();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Reset bounds
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetBounds = function () {
-	    m_bounds[0] = 0.0;
-	    m_bounds[1] = 0.0;
-	    m_bounds[2] = 0.0;
-	    m_bounds[3] = 0.0;
-	    m_bounds[4] = 0.0;
-	    m_bounds[5] = 0.0;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set bounds
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setBounds = function (minX, maxX, minY, maxY, minZ, maxZ) {
-	    m_bounds[0] = minX;
-	    m_bounds[1] = maxX;
-	    m_bounds[2] = minY;
-	    m_bounds[3] = maxY;
-	    m_bounds[4] = minZ;
-	    m_bounds[5] = maxZ;
-
-	    m_computeBoundsTimestamp.modified();
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute bounds
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	    if (m_boundsDirtyTimestamp.getMTime() > m_computeBoundsTimestamp.getMTime()) {
-	      var attr = vgl.vertexAttributeKeys.Position,
-	          sourceData = this.sourceData(attr),
-	          data = sourceData.data(),
-	          numberOfComponents = sourceData.attributeNumberOfComponents(attr),
-	          stride = sourceData.attributeStride(attr),
-	          offset = sourceData.attributeOffset(attr),
-	          sizeOfDataType = sourceData.sizeOfAttributeDataType(attr),
-	          count = data.length,
-	          j, ib, jb, maxv, minv,
-	          value = null,
-	          vertexIndex;
-
-	      // We advance by index, not by byte
-	      stride /= sizeOfDataType;
-	      offset /= sizeOfDataType;
-
-	      this.resetBounds();
-
-	      for (j = 0; j < numberOfComponents; j += 1) {
-	        ib = j * 2;
-	        jb = j * 2 + 1;
-	        if (count) {
-	          maxv = minv = m_bounds[jb] = data[offset + j];
-	        } else {
-	          maxv = minv = 0;
-	        }
-	        for (vertexIndex = offset + stride + j; vertexIndex < count;
-	             vertexIndex += stride) {
-	          value = data[vertexIndex];
-	          if (value > maxv) {
-	            maxv = value;
-	          }
-	          if (value < minv) {
-	            minv = value;
-	          }
-	        }
-	        m_bounds[ib] = minv; m_bounds[jb] = maxv;
-	      }
-
-	      m_computeBoundsTimestamp.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Returns the vertex closest to a given position
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.findClosestVertex = function (point) {
-	    var attr = vgl.vertexAttributeKeys.Position,
-	        sourceData = this.sourceData(attr),
-	        sizeOfDataType = sourceData.sizeOfAttributeDataType(attr),
-	        numberOfComponents = sourceData.attributeNumberOfComponents(attr),
-	        data = sourceData.data(),
-	        stride = sourceData.attributeStride(attr) / sizeOfDataType,
-	        offset = sourceData.attributeOffset(attr) / sizeOfDataType,
-	        minDist = Number.MAX_VALUE,
-	        minIndex = null,
-	        vi, vPos, dx, dy, dz, dist, i;
-
-	    // assume positions are always triplets
-	    if (numberOfComponents !== 3) {
-	      console.log('[warning] Find closest vertex assumes three' +
-	        'component vertex ');
-	    }
-
-	    if (!point.z) {
-	      point = {x: point.x, y: point.y, z: 0};
-	    }
-
-	    for (vi = offset, i = 0; vi < data.length; vi += stride, i += 1) {
-	      vPos = [data[vi],
-	              data[vi + 1],
-	              data[vi + 2]];
-
-	      dx = vPos[0] - point.x;
-	      dy = vPos[1] - point.y;
-	      dz = vPos[2] - point.z;
-	      dist = Math.sqrt(dx * dx + dy * dy + dz * dz);
-	      if (dist < minDist) {
-	        minDist = dist;
-	        minIndex = i;
-	      }
-	    }
-	    return minIndex;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Returns the requested vertex position
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getPosition = function (index) {
-	    var attr = vgl.vertexAttributeKeys.Position,
-	        sourceData = this.sourceData(attr),
-	        sizeOfDataType = sourceData.sizeOfAttributeDataType(attr),
-	        numberOfComponents = sourceData.attributeNumberOfComponents(attr),
-	        data = sourceData.data(),
-	        stride = sourceData.attributeStride(attr) / sizeOfDataType,
-	        offset = sourceData.attributeOffset(attr) / sizeOfDataType;
-
-	    // assume positions are always triplets
-	    if (numberOfComponents !== 3) {
-	      console.log('[warning] getPosition assumes three component data');
-	    }
-
-	    return [data[offset + index * stride],
-	            data[offset + index * stride + 1],
-	            data[offset + index * stride + 2]];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Returns the scalar corresponding to a given vertex index
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getScalar = function (index) {
-	    var attr = vgl.vertexAttributeKeys.Scalar,
-	        sourceData = this.sourceData(attr),
-	        sizeOfDataType, data, stride, offset;
-
-	    if (!sourceData) {
-	      return null;
-	    }
-
-	    sizeOfDataType = sourceData.sizeOfAttributeDataType(attr);
-	    data = sourceData.data();
-	    stride = sourceData.attributeStride(attr) / sizeOfDataType;
-	    offset = sourceData.attributeOffset(attr) / sizeOfDataType;
-
-	    if (index * stride + offset >= data.length) {
-	      console.log('access out of bounds in getScalar');
-	    }
-
-	    return data[index * stride + offset];
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.geometryData, vgl.data);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, Float32Array, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class mapper
-	 *
-	 * @class
-	 * @returns {vgl.mapper}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.mapper = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.mapper)) {
-	    return new vgl.mapper(arg);
-	  }
-	  vgl.boundingObject.call(this);
-
-	  /** @private */
-	  arg = arg || {};
-
-	  var m_color = [0.0, 1.0, 1.0],
-	      m_geomData = null,
-	      m_buffers = [],
-	      m_bufferVertexAttributeMap = {},
-	      m_dynamicDraw = arg.dynamicDraw === undefined ? false : arg.dynamicDraw,
-	      m_glCompileTimestamp = vgl.timestamp(),
-	      m_context = null,
-	      m_this = this;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Delete cached VBO if any
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.deleteVertexBufferObjects = function (renderState) {
-	    var i;
-	    var context = m_context;
-	    if (renderState) {
-	      context = renderState.m_context;
-	    }
-	    if (context) {
-	      for (i = 0; i < m_buffers.length; i += 1) {
-	        context.deleteBuffer(m_buffers[i]);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create new VBO for all its geometryData sources and primitives
-	   *
-	   * @private
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  function createVertexBufferObjects(renderState) {
-	    if (m_geomData) {
-	      if (renderState) {
-	        m_context = renderState.m_context;
-	      }
-	      var numberOfSources = m_geomData.numberOfSources(),
-	          i, j, k, bufferId = null, keys, ks, numberOfPrimitives, data;
-
-	      for (i = 0; i < numberOfSources; i += 1) {
-	        bufferId = m_context.createBuffer();
-	        m_context.bindBuffer(vgl.GL.ARRAY_BUFFER, bufferId);
-	        data = m_geomData.source(i).data();
-	        if (!(data instanceof Float32Array)) {
-	          data = new Float32Array(data);
-	        }
-	        m_context.bufferData(vgl.GL.ARRAY_BUFFER, data,
-	                      m_dynamicDraw ? vgl.GL.DYNAMIC_DRAW :
-	                      vgl.GL.STATIC_DRAW);
-
-	        keys = m_geomData.source(i).keys();
-	        ks = [];
-
-	        for (j = 0; j < keys.length; j += 1) {
-	          ks.push(keys[j]);
-	        }
-
-	        m_bufferVertexAttributeMap[i] = ks;
-	        m_buffers[i] = bufferId;
-	      }
-
-	      numberOfPrimitives = m_geomData.numberOfPrimitives();
-	      for (k = 0; k < numberOfPrimitives; k += 1) {
-	        bufferId = m_context.createBuffer();
-	        m_context.bindBuffer(vgl.GL.ARRAY_BUFFER, bufferId);
-	        m_context.bufferData(vgl.GL.ARRAY_BUFFER,
-	          m_geomData.primitive(k).indices(), vgl.GL.STATIC_DRAW);
-	        m_buffers[i] = bufferId;
-	        i += 1;
-	      }
-
-	      m_glCompileTimestamp.modified();
-	    }
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Clear cache related to buffers
-	   *
-	   * @private
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  function cleanUpDrawObjects(renderState) {
-	    void renderState;
-	    m_bufferVertexAttributeMap = {};
-	    m_buffers = [];
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Setup draw objects; Delete old ones and create new ones
-	   *
-	   * @private
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  function setupDrawObjects(renderState) {
-	    // Delete buffer objects from past if any.
-	    m_this.deleteVertexBufferObjects(renderState);
-
-	    // Clear any cache related to buffers
-	    cleanUpDrawObjects(renderState);
-
-	    // Now construct the new ones.
-	    createVertexBufferObjects(renderState);
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute bounds of the data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	    if (m_geomData === null || typeof m_geomData === 'undefined') {
-	      this.resetBounds();
-	      return;
-	    }
-
-	    var computeBoundsTimestamp = this.computeBoundsTimestamp(),
-	        boundsDirtyTimestamp = this.boundsDirtyTimestamp(),
-	        geomBounds = null;
-
-	    if (boundsDirtyTimestamp.getMTime() > computeBoundsTimestamp.getMTime()) {
-	      geomBounds = m_geomData.bounds();
-
-	      this.setBounds(geomBounds[0], geomBounds[1], geomBounds[2],
-	        geomBounds[3], geomBounds[4], geomBounds[5]);
-
-	      computeBoundsTimestamp.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get solid color of the geometry
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.color = function () {
-	    return m_color;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set solid color of the geometry. Default is teal [1.0, 1.0, 1.0]
-	   *
-	   * @param r Red component of the color [0.0 - 1.0]
-	   * @param g Green component of the color [0.0 - 1.0]
-	   * @param b Blue component of the color [0.0 - 1.0]
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setColor = function (r, g, b) {
-	    m_color[0] = r;
-	    m_color[1] = g;
-	    m_color[2] = b;
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return stored geometry data if any
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.geometryData = function () {
-	    return m_geomData;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Connect mapper to its geometry data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setGeometryData = function (geom) {
-	    if (m_geomData !== geom) {
-	      m_geomData = geom;
-
-	      this.modified();
-	      this.boundsDirtyTimestamp().modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update the buffer used for a named source.
-	   *
-	   * @param {String} sourceName The name of the source to update.
-	   * @param {Object[] or Float32Array} values The values to use for the source.
-	   *    If not specified, use the source's own buffer.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.updateSourceBuffer = function (sourceName, values, renderState) {
-	    if (renderState) {
-	      m_context = renderState.m_context;
-	    }
-	    if (!m_context) {
-	      return false;
-	    }
-	    var bufferIndex = -1;
-	    for (var i = 0; i < m_geomData.numberOfSources(); i += 1) {
-	      if (m_geomData.source(i).name() === sourceName) {
-	        bufferIndex = i;
-	        break;
-	      }
-	    }
-	    if (bufferIndex < 0 || bufferIndex >= m_buffers.length) {
-	      return false;
-	    }
-	    if (!values) {
-	      values = m_geomData.source(i).dataToFloat32Array();
-	    }
-	    m_context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_buffers[bufferIndex]);
-	    if (values instanceof Float32Array) {
-	      m_context.bufferSubData(vgl.GL.ARRAY_BUFFER, 0, values);
-	    } else {
-	      m_context.bufferSubData(vgl.GL.ARRAY_BUFFER, 0,
-	                              new Float32Array(values));
-	    }
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get the buffer used for a named source.  If the current buffer isn't a
-	   * Float32Array, it is converted to one.  This array can then be modified
-	   * directly, after which updateSourceBuffer can be called to update the
-	   * GL array.
-	   *
-	   * @param {String} sourceName The name of the source to update.
-	   * @returns {Float32Array} An array used for this source.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getSourceBuffer = function (sourceName) {
-	    var source = m_geomData.sourceByName(sourceName);
-	    if (!source) {
-	      return new Float32Array();
-	    }
-	    return source.dataToFloat32Array();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the mapper
-	   *
-	   * @param {object} renderState: the current renderering state object.
-	   * @param {boolean} noUndoBindVertexData: if true, do not unbind vertex data.
-	   *    This may be desirable if the render function is subclassed.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function (renderState, noUndoBindVertexData) {
-	    if (this.getMTime() > m_glCompileTimestamp.getMTime() ||
-	        renderState.m_contextChanged) {
-	      setupDrawObjects(renderState);
-	    }
-	    m_context = renderState.m_context;
-
-	    // Fixed vertex color
-	    m_context.vertexAttrib3fv(vgl.vertexAttributeKeys.Color, this.color());
-
-	    // TODO Use renderState
-	    var bufferIndex = 0,
-	        j = 0, i, noOfPrimitives = null, primitive = null;
-
-	    for (i in m_bufferVertexAttributeMap) {
-	      if (m_bufferVertexAttributeMap.hasOwnProperty(i)) {
-	        m_context.bindBuffer(vgl.GL.ARRAY_BUFFER,
-	                             m_buffers[bufferIndex]);
-	        for (j = 0; j < m_bufferVertexAttributeMap[i].length; j += 1) {
-	          renderState.m_material
-	              .bindVertexData(renderState, m_bufferVertexAttributeMap[i][j]);
-	        }
-	        bufferIndex += 1;
-	      }
-	    }
-
-	    noOfPrimitives = m_geomData.numberOfPrimitives();
-	    for (j = 0; j < noOfPrimitives; j += 1, bufferIndex += 1) {
-	      primitive = m_geomData.primitive(j);
-	      if (!primitive.numberOfIndices()) {
-	        continue;
-	      }
-	      m_context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_buffers[bufferIndex]);
-	      switch (primitive.primitiveType()) {
-	        case vgl.GL.POINTS:
-	          m_context.drawArrays(vgl.GL.POINTS, 0, primitive.numberOfIndices());
-	          break;
-	        case vgl.GL.LINES:
-	          m_context.drawArrays(vgl.GL.LINES, 0, primitive.numberOfIndices());
-	          break;
-	        case vgl.GL.LINE_STRIP:
-	          m_context.drawArrays(vgl.GL.LINE_STRIP, 0, primitive.numberOfIndices());
-	          break;
-	        case vgl.GL.TRIANGLES:
-	          m_context.drawArrays(vgl.GL.TRIANGLES, 0, primitive.numberOfIndices());
-	          break;
-	        case vgl.GL.TRIANGLE_STRIP:
-	          m_context.drawArrays(vgl.GL.TRIANGLE_STRIP, 0, primitive.numberOfIndices());
-	          break;
-	      }
-	      m_context.bindBuffer(vgl.GL.ARRAY_BUFFER, null);
-	    }
-
-	    /* If we are rendering multiple features in the same context, we must
-	     * unbind the vertex data to make sure the next feature has a known state.
-	     * This is optional.
-	     */
-	    if (!noUndoBindVertexData) {
-	      this.undoBindVertexData(renderState);
-	    }
-	  };
-
-	  /**
-	   * Unbind the vertex data,
-	   */
-	  this.undoBindVertexData = function (renderState) {
-	    var i, j;
-
-	    for (i in m_bufferVertexAttributeMap) {
-	      if (m_bufferVertexAttributeMap.hasOwnProperty(i)) {
-	        for (j = 0; j < m_bufferVertexAttributeMap[i].length; j += 1) {
-	          renderState.m_material
-	              .undoBindVertexData(renderState, m_bufferVertexAttributeMap[i][j]);
-	        }
-	      }
-	    }
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.mapper, vgl.boundingObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	vgl.groupMapper = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.groupMapper)) {
-	    return new vgl.groupMapper();
-	  }
-	  vgl.mapper.call(this);
-
-	  /** @private */
-	  var m_createMappersTimestamp = vgl.timestamp(),
-	      m_mappers = [],
-	      m_geomDataArray = [];
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return stored geometry data if any
-	   *
-	   * @param index optional
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.geometryData = function (index) {
-	    if (index !== undefined && index < m_geomDataArray.length) {
-	      return m_geomDataArray[index];
-	    }
-
-	    if (m_geomDataArray.length > 0) {
-	      return m_geomDataArray[0];
-	    }
-
-	    return null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Connect mapper to its geometry data
-	   *
-	   * @param geom {vgl.geomData}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setGeometryData = function (geom) {
-	    if (m_geomDataArray.length === 1) {
-	      if (m_geomDataArray[0] === geom) {
-	        return;
-	      }
-	    }
-	    m_geomDataArray = [];
-	    m_geomDataArray.push(geom);
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return stored geometry data array if any
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.geometryDataArray = function () {
-	    return m_geomDataArray;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Connect mapper to its geometry data
-	   *
-	   * @param geoms {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setGeometryDataArray = function (geoms) {
-	    if (geoms instanceof Array) {
-	      if (m_geomDataArray !== geoms) {
-	        m_geomDataArray = [];
-	        m_geomDataArray = geoms;
-	        this.modified();
-	        return true;
-	      }
-	    } else {
-	      console.log('[error] Requies array of geometry data');
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute bounds of the data
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeBounds = function () {
-	    if (m_geomDataArray === null ||
-	        m_geomDataArray === undefined) {
-	      this.resetBounds();
-	      return;
-	    }
-
-	    var computeBoundsTimestamp = this.computeBoundsTimestamp(),
-	        boundsDirtyTimestamp = this.boundsDirtyTimestamp(),
-	        m_bounds = this.bounds(),
-	        geomBounds = null,
-	        i = null;
-
-	    if (boundsDirtyTimestamp.getMTime() >
-	        computeBoundsTimestamp.getMTime()) {
-
-	      for (i = 0; i < m_geomDataArray.length; i += 1) {
-	        geomBounds = m_geomDataArray[i].bounds();
-
-	        if (m_bounds[0] > geomBounds[0]) {
-	          m_bounds[0] = geomBounds[0];
-	        }
-	        if (m_bounds[1] < geomBounds[1]) {
-	          m_bounds[1] = geomBounds[1];
-	        }
-	        if (m_bounds[2] > geomBounds[2]) {
-	          m_bounds[2] = geomBounds[2];
-	        }
-	        if (m_bounds[3] < geomBounds[3]) {
-	          m_bounds[3] = geomBounds[3];
-	        }
-	        if (m_bounds[4] > geomBounds[4]) {
-	          m_bounds[4] = geomBounds[4];
-	        }
-	        if (m_bounds[5] < geomBounds[5]) {
-	          m_bounds[5] = geomBounds[5];
-	        }
-	      }
-
-	      this.modified();
-	      computeBoundsTimestamp.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the mapper
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function (renderState) {
-	    var i = null;
-
-	    if (this.getMTime() > m_createMappersTimestamp.getMTime()) {
-	      // NOTE Hoping that it will release the graphics resources
-	      for (i = 0; i < m_geomDataArray.length; i += 1) {
-	        m_mappers.push(vgl.mapper());
-	        m_mappers[i].setGeometryData(m_geomDataArray[i]);
-	      }
-	      m_createMappersTimestamp.modified();
-	    }
-
-	    for (i = 0; i < m_mappers.length; i += 1) {
-	      m_mappers[i].render(renderState);
-	    }
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.groupMapper, vgl.mapper);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	vgl.materialAttributeType = {
-	  'Undefined' : 0x0,
-	  'ShaderProgram' : 0x1,
-	  'Texture' : 0x2,
-	  'Blend' : 0x3,
-	  'Depth' : 0x4
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class materialAttribute
-	 *
-	 * @class
-	 * @param type
-	 * @returns {vgl.materialAttribute}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.materialAttribute = function (type) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.materialAttribute)) {
-	    return new vgl.materialAttribute(type);
-	  }
-	  vgl.graphicsObject.call(this);
-
-	  /** @private */
-	  var m_this = this,
-	      m_type = type,
-	      m_enabled = true;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return tyep of the material attribute
-	   *
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.type = function () {
-	    return m_type;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return if material attribute is enabled or not
-	   *
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.enabled = function () {
-	    return m_enabled;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind and activate vertex specific data
-	   *
-	   * @param renderState
-	   * @param key
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bindVertexData = function (renderState, key) {
-	    renderState = renderState; /* unused parameter */
-	    key = key; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind and deactivate vertex specific data
-	   *
-	   * @param renderState
-	   * @param key
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.undoBindVertexData = function (renderState, key) {
-	    renderState = renderState; /* unused parameter */
-	    key = key; /* unused parameter */
-	    return false;
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.materialAttribute, vgl.graphicsObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of clas blendFunction
-	 *
-	 * @class
-	 * @param source
-	 * @param destination
-	 * @returns {vgl.blendFunction}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.blendFunction = function (source, destination) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.blendFunction)) {
-	    return new vgl.blendFunction(source, destination);
-	  }
-
-	  /** @private */
-	  var m_source = source,
-	      m_destination = destination;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Apply blend function to the current state
-	   *
-	   * @param {vgl.renderState}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.apply = function (renderState) {
-	    renderState.m_context.blendFuncSeparate(m_source, m_destination,
-	                         vgl.GL.ONE, vgl.GL.ONE_MINUS_SRC_ALPHA);
-	  };
-
-	  return this;
-	};
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class blend
-	 *
-	 * @returns {vgl.blend}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.blend = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.blend)) {
-	    return new vgl.blend();
-	  }
-	  vgl.materialAttribute.call(
-	    this, vgl.materialAttributeType.Blend);
-
-	  /** @private */
-	  var m_wasEnabled = false,
-	      m_blendFunction = vgl.blendFunction(vgl.GL.SRC_ALPHA,
-	                                          vgl.GL.ONE_MINUS_SRC_ALPHA);
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind blend attribute
-	   *
-	   * @param {vgl.renderState}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bind = function (renderState) {
-	    m_wasEnabled = renderState.m_context.isEnabled(vgl.GL.BLEND);
-
-	    if (this.enabled()) {
-	      renderState.m_context.enable(vgl.GL.BLEND);
-	      m_blendFunction.apply(renderState);
-	    } else {
-	      renderState.m_context.disable(vgl.GL.BLEND);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind blend attribute
-	   *
-	   * @param {vgl.renderState}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.undoBind = function (renderState) {
-	    if (m_wasEnabled) {
-	      renderState.m_context.enable(vgl.GL.BLEND);
-	    } else {
-	      renderState.m_context.disable(vgl.GL.BLEND);
-	    }
-
-	    return true;
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.blend, vgl.materialAttribute);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class material
-	 *
-	 * @class
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.material = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.material)) {
-	    return new vgl.material();
-	  }
-	  vgl.graphicsObject.call(this);
-
-	  // / Private member variables
-	  var m_this = this,
-	      m_shaderProgram = new vgl.shaderProgram(),
-	      m_binNumber = 100,
-	      m_textureAttributes = {},
-	      m_attributes = {};
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return bin number for the material
-	   *
-	   * @default 100
-	   * @returns {number}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.binNumber = function () {
-	    return m_binNumber;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set bin number for the material
-	   *
-	   * @param binNo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setBinNumber = function (binNo) {
-	    m_binNumber = binNo;
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if incoming attribute already exists in the material
-	   *
-	   * @param attr
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.exists = function (attr) {
-	    if (attr.type() === vgl.materialAttributeType.Texture) {
-	      return m_textureAttributes.hasOwnProperty(attr.textureUnit());
-	    }
-	    return m_attributes.hasOwnProperty(attr.type());
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get uniform given a name
-
-	   * @param name Uniform name
-	   * @returns {vgl.uniform}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.uniform = function (name) {
-	    return m_shaderProgram ? m_shaderProgram.uniform(name) : null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get material attribute
-
-	   * @param {number} type attribute type
-	   * @param {number} textureUnit attribute texture unit if type is Texture.
-	   * @returns {vgl.materialAttribute}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.attribute = function (type, textureUnit) {
-	    if (m_attributes.hasOwnProperty(type)) {
-	      return m_attributes[type];
-	    }
-
-	    if (type === vgl.materialAttributeType.Texture && m_textureAttributes.hasOwnProperty(textureUnit)) {
-	      return m_textureAttributes[textureUnit];
-	    }
-
-	    return null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set a new attribute for the material
-	   *
-	   * This method replace any existing attribute except for textures as
-	   * materials can have multiple textures.
-	   *
-	   * @param attr
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setAttribute = function (attr) {
-	    if (attr.type() === vgl.materialAttributeType.Texture) {
-	      if (m_textureAttributes[attr.textureUnit()] === attr) {
-	        return false;
-	      }
-	      m_textureAttributes[attr.textureUnit()] = attr;
-	      m_this.modified();
-	      return true;
-	    }
-
-	    if (m_attributes[attr.type()] === attr) {
-	      return false;
-	    }
-
-	    // Shader is a very special attribute
-	    if (attr.type() === vgl.materialAttributeType.ShaderProgram) {
-	      m_shaderProgram = attr;
-	    }
-
-	    m_attributes[attr.type()] = attr;
-	    m_this.modified();
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add a new attribute to the material.
-	   *
-	   * @param attr
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addAttribute = function (attr) {
-	    if (m_this.exists(attr)) {
-	      return false;
-	    }
-
-	    if (attr.type() === vgl.materialAttributeType.Texture) {
-	      // TODO Currently we don't check if we are replacing or not.
-	      // It would be nice to have a flag for it.
-	      m_textureAttributes[attr.textureUnit()] = attr;
-	      m_this.modified();
-	      return true;
-	    }
-
-	    // Shader is a very special attribute
-	    if (attr.type() === vgl.materialAttributeType.ShaderProgram) {
-	      m_shaderProgram = attr;
-	    }
-
-	    m_attributes[attr.type()] = attr;
-	    m_this.modified();
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return shader program used by the material
-	   *
-	   * @returns {vgl.shaderProgram}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.shaderProgram = function () {
-	    return m_shaderProgram;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Setup (initialize) the material attribute
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._setup = function (renderState) {
-	    void renderState; /* unused parameter */
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove any resources acquired before deletion
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._cleanup = function (renderState) {
-	    for (var key in m_attributes) {
-	      if (m_attributes.hasOwnProperty(key)) {
-	        m_attributes[key]._cleanup(renderState);
-	      }
-	    }
-
-	    for (key in m_textureAttributes) {
-	      if (m_textureAttributes.hasOwnProperty(key)) {
-	        m_textureAttributes[key]._cleanup(renderState);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind and activate material states
-	   *
-	   * @param renderState
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bind = function (renderState) {
-	    var key = null;
-
-	    m_shaderProgram.bind(renderState);
-
-	    for (key in m_attributes) {
-	      if (m_attributes.hasOwnProperty(key)) {
-	        if (m_attributes[key] !== m_shaderProgram) {
-	          m_attributes[key].bind(renderState);
-	        }
-	      }
-	    }
-
-	    for (key in m_textureAttributes) {
-	      if (m_textureAttributes.hasOwnProperty(key)) {
-	        m_textureAttributes[key].bind(renderState);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo-bind and de-activate material states
-	   *
-	   * @param renderState
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.undoBind = function (renderState) {
-	    var key = null;
-	    for (key in m_attributes) {
-	      if (m_attributes.hasOwnProperty(key)) {
-	        m_attributes[key].undoBind(renderState);
-	      }
-	    }
-
-	    for (key in m_textureAttributes) {
-	      if (m_textureAttributes.hasOwnProperty(key)) {
-	        m_textureAttributes[key].undoBind(renderState);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind vertex data
-	   *
-	   * @param renderState
-	   * @param key
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bindVertexData = function (renderState, key) {
-	    var i = null;
-
-	    for (i in m_attributes) {
-	      if (m_attributes.hasOwnProperty(i)) {
-	        m_attributes[i].bindVertexData(renderState, key);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind vertex data
-	   *
-	   * @param renderState
-	   * @param key
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.undoBindVertexData = function (renderState, key) {
-	    var i = null;
-
-	    for (i in m_attributes) {
-	      if (m_attributes.hasOwnProperty(i)) {
-	        m_attributes[i].undoBindVertexData(renderState, key);
-	      }
-	    }
-	  };
-
-	  return m_this;
-	};
-
-	vgl.material.RenderBin = {
-	  'Base' : 0,
-	  'Default' : 100,
-	  'Opaque' : 100,
-	  'Transparent' : 1000,
-	  'Overlay' : 10000
-	};
-
-	inherit(vgl.material, vgl.graphicsObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec2, vec3, vec4, mat4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class renderState
-	 *
-	 * @returns {vgl.renderState}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.renderState = function () {
-	  'use strict';
-
-	  this.m_context = null;
-	  this.m_modelViewMatrix = mat4.create();
-	  this.m_normalMatrix = mat4.create();
-	  this.m_projectionMatrix = null;
-	  this.m_material = null;
-	  this.m_mapper = null;
-	};
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class renderer *
-	 *
-	 * @returns {vgl.renderer}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.renderer = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.renderer)) {
-	    return new vgl.renderer(arg);
-	  }
-	  vgl.graphicsObject.call(this);
-	  arg = arg || {};
-
-	  /** @private */
-	  var m_this = this;
-	  m_this.m_renderWindow = null;
-	  m_this.m_contextChanged = false;
-	  m_this.m_sceneRoot = new vgl.groupNode();
-	  m_this.m_camera = new vgl.camera(arg);
-	  m_this.m_nearClippingPlaneTolerance = null;
-	  m_this.m_x = 0;
-	  m_this.m_y = 0;
-	  m_this.m_width = 0;
-	  m_this.m_height = 0;
-	  m_this.m_resizable = true;
-	  m_this.m_resetScene = true;
-	  m_this.m_layer = 0;
-	  m_this.m_renderPasses = null;
-	  m_this.m_resetClippingRange = true;
-	  m_this.m_depthBits = null;
-
-	  m_this.m_camera.addChild(m_this.m_sceneRoot);
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get width of the renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.width = function () {
-	    return m_this.m_width;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get height of the renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.height = function () {
-	    return m_this.m_height;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get layer this renderer is associated with
-	   *
-	   * @return {Number}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.layer = function () {
-	    return m_this.m_layer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set the layer this renderer is associated with.
-	   *
-	   * @param layerNo
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setLayer = function (layerNo) {
-	    m_this.m_layer = layerNo;
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.isResizable = function () {
-	    return m_this.m_resizable;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setResizable = function (r) {
-	    m_this.m_resizable = r;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return render window (owner) of the renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.renderWindow = function () {
-	    return m_this.m_renderWindow;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set render window for the renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setRenderWindow = function (renWin) {
-	    if (m_this.m_renderWindow !== renWin) {
-	      if (m_this.m_renderWindow) {
-	        m_this.m_renderWindow.removeRenderer(this);
-	      }
-	      m_this.m_renderWindow = renWin;
-	      m_this.m_contextChanged = true;
-	      m_this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get background color
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.backgroundColor = function () {
-	    return m_this.m_camera.clearColor();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set background color of the renderer
-	   *
-	   * @param r
-	   * @param g
-	   * @param b
-	   * @param a
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setBackgroundColor = function (r, g, b, a) {
-	    m_this.m_camera.setClearColor(r, g, b, a);
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get scene root
-	   *
-	   * @returns {vgl.groupNode}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.sceneRoot = function () {
-	    return m_this.m_sceneRoot;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get main camera of the renderer
-	   *
-	   * @returns {vgl.camera}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.camera = function () {
-	    return m_this.m_camera;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the scene
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function () {
-	    var i, renSt, children, actor = null, sortedActors = [],
-	        mvMatrixInv = mat4.create(), clearColor = null;
-
-	    renSt = new vgl.renderState();
-	    renSt.m_renderer = m_this;
-	    renSt.m_context = m_this.renderWindow().context();
-	    if (!m_this.m_depthBits || m_this.m_contextChanged) {
-	      m_this.m_depthBits = renSt.m_context.getParameter(vgl.GL.DEPTH_BITS);
-	    }
-	    renSt.m_contextChanged = m_this.m_contextChanged;
-
-	    if (m_this.m_renderPasses) {
-	      for (i = 0; i < m_this.m_renderPasses.length; i += 1) {
-	        if (m_this.m_renderPasses[i].render(renSt)) {
-	          // Stop the rendering if render pass returns false
-	          console.log('returning');
-	          m_this.m_renderPasses[i].remove(renSt);
-	          return;
-	        }
-	        m_this.m_renderPasses[i].remove(renSt);
-	      }
-	    }
-
-	    renSt.m_context.enable(vgl.GL.DEPTH_TEST);
-	    renSt.m_context.depthFunc(vgl.GL.LEQUAL);
-
-	    /*jshint bitwise: false */
-	    if (m_this.m_camera.clearMask() & vgl.GL.COLOR_BUFFER_BIT) {
-	      clearColor = m_this.m_camera.clearColor();
-	      renSt.m_context.clearColor(clearColor[0], clearColor[1],
-	                                 clearColor[2], clearColor[3]);
-	    }
-
-	    if (m_this.m_camera.clearMask() & vgl.GL.DEPTH_BUFFER_BIT) {
-	      renSt.m_context.clearDepth(m_this.m_camera.clearDepth());
-	    }
-	    /*jshint bitwise: true */
-
-	    renSt.m_context.clear(m_this.m_camera.clearMask());
-
-	    // Set the viewport for this renderer
-	    renSt.m_context.viewport(m_this.m_x, m_this.m_y,
-	                             m_this.m_width, m_this.m_height);
-
-	    children = m_this.m_sceneRoot.children();
-
-	    if (children.length > 0 && m_this.m_resetScene) {
-	      m_this.resetCamera();
-	      m_this.m_resetScene = false;
-	    }
-
-	    for (i = 0; i < children.length; i += 1) {
-	      actor = children[i];
-
-	      // Compute the bounds even if the actor is not visible
-	      actor.computeBounds();
-
-	      // If bin number is < 0, then don't even bother
-	      // rendering the data
-	      if (actor.visible() && actor.material().binNumber() >= 0) {
-	        sortedActors.push([actor.material().binNumber(), actor]);
-	      }
-	    }
-
-	    // Now perform sorting
-	    sortedActors.sort(function (a, b) { return a[0] - b[0]; });
-
-	    for (i = 0; i < sortedActors.length; i += 1) {
-	      actor = sortedActors[i][1];
-	      if (actor.referenceFrame() ===
-	          vgl.boundingObject.ReferenceFrame.Relative) {
-	        var view = m_this.m_camera.viewMatrix();
-	        /* If the view matrix is a plain array, keep it as such.  This is
-	         * intended to preserve precision, and will only be the case if the
-	         * view matrix was created by delibrately setting it as an array. */
-	        if (view instanceof Array) {
-	          renSt.m_modelViewMatrix = new Array(16);
-	        }
-	        mat4.multiply(renSt.m_modelViewMatrix, view, actor.matrix());
-	        renSt.m_projectionMatrix = m_this.m_camera.projectionMatrix();
-	        renSt.m_modelViewAlignment = m_this.m_camera.viewAlignment();
-	      } else {
-	        renSt.m_modelViewMatrix = actor.matrix();
-	        renSt.m_modelViewAlignment = null;
-	        renSt.m_projectionMatrix = mat4.create();
-	        mat4.ortho(renSt.m_projectionMatrix,
-	                   0, m_this.m_width, 0, m_this.m_height, -1, 1);
-	      }
-
-	      mat4.invert(mvMatrixInv, renSt.m_modelViewMatrix);
-	      mat4.transpose(renSt.m_normalMatrix, mvMatrixInv);
-	      renSt.m_material = actor.material();
-	      renSt.m_mapper = actor.mapper();
-
-	      // TODO Fix this shortcut
-	      renSt.m_material.bind(renSt);
-	      renSt.m_mapper.render(renSt);
-	      renSt.m_material.undoBind(renSt);
-	    }
-
-	    renSt.m_context.finish();
-	    m_this.m_contextChanged = false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Automatically set up the camera based on visible actors
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetCamera = function () {
-	    m_this.m_camera.computeBounds();
-
-	    var vn = m_this.m_camera.directionOfProjection(),
-	        visibleBounds = m_this.m_camera.bounds(),
-	        center = [
-	          (visibleBounds[0] + visibleBounds[1]) / 2.0,
-	          (visibleBounds[2] + visibleBounds[3]) / 2.0,
-	          (visibleBounds[4] + visibleBounds[5]) / 2.0
-	        ],
-	        diagonals = [
-	          visibleBounds[1] - visibleBounds[0],
-	          visibleBounds[3] - visibleBounds[2],
-	          visibleBounds[5] - visibleBounds[4]
-	        ],
-	        radius = 0.0,
-	        aspect = m_this.m_camera.viewAspect(),
-	        angle = m_this.m_camera.viewAngle(),
-	        distance = null,
-	        vup = null;
-
-	    if (diagonals[0] > diagonals[1]) {
-	      if (diagonals[0] > diagonals[2]) {
-	        radius = diagonals[0] / 2.0;
-	      } else {
-	        radius = diagonals[2] / 2.0;
-	      }
-	    } else {
-	      if (diagonals[1] > diagonals[2]) {
-	        radius = diagonals[1] / 2.0;
-	      } else {
-	        radius = diagonals[2] / 2.0;
-	      }
-	    }
-
-	    // @todo Need to figure out what's happening here
-	    if (aspect >= 1.0) {
-	      angle = 2.0 * Math.atan(Math.tan(angle * 0.5) / aspect);
-	    } else {
-	      angle = 2.0 * Math.atan(Math.tan(angle * 0.5) * aspect);
-	    }
-
-	    distance = radius / Math.sin(angle * 0.5);
-	    vup = m_this.m_camera.viewUpDirection();
-
-	    if (Math.abs(vec3.dot(vup, vn)) > 0.999) {
-	      m_this.m_camera.setViewUpDirection(-vup[2], vup[0], vup[1]);
-	    }
-
-	    m_this.m_camera.setFocalPoint(center[0], center[1], center[2]);
-	    m_this.m_camera.setPosition(center[0] + distance * -vn[0],
-	      center[1] + distance * -vn[1], center[2] + distance * -vn[2]);
-
-	    m_this.resetCameraClippingRange(visibleBounds);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	  * Check whether or not whether or not the bounds are valid
-	  */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasValidBounds = function (bounds) {
-	    if (bounds[0] === Number.MAX_VALUE ||
-	        bounds[1] === -Number.MAX_VALUE ||
-	        bounds[2] === Number.MAX_VALUE ||
-	        bounds[3] === -Number.MAX_VALUE ||
-	        bounds[4] === Number.MAX_VALUE ||
-	        bounds[5] === -Number.MAX_VALUE) {
-	      return false;
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Recalculate camera's clipping range
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetCameraClippingRange = function (bounds) {
-	    if (typeof bounds === 'undefined') {
-	      m_this.m_camera.computeBounds();
-	      bounds = m_this.m_camera.bounds();
-	    }
-
-	    if (!m_this.hasValidBounds(bounds)) {
-	      return;
-	    }
-
-	    var vn = m_this.m_camera.viewPlaneNormal(),
-	        position = m_this.m_camera.position(),
-	        a = -vn[0],
-	        b = -vn[1],
-	        c = -vn[2],
-	        d = -(a * position[0] + b * position[1] + c * position[2]),
-	        range = vec2.create(),
-	        dist = null,
-	        i = null,
-	        j = null,
-	        k = null;
-
-	    if (!m_this.m_resetClippingRange) {
-	      return;
-	    }
-
-	    // Set the max near clipping plane and the min far clipping plane
-	    range[0] = a * bounds[0] + b * bounds[2] + c * bounds[4] + d;
-	    range[1] = 1e-18;
-
-	    // Find the closest / farthest bounding box vertex
-	    for (k = 0; k < 2; k += 1) {
-	      for (j = 0; j < 2; j += 1) {
-	        for (i = 0; i < 2; i += 1) {
-	          dist = a * bounds[i] + b * bounds[2 + j] + c * bounds[4 + k] + d;
-	          range[0] = (dist < range[0]) ? (dist) : (range[0]);
-	          range[1] = (dist > range[1]) ? (dist) : (range[1]);
-	        }
-	      }
-	    }
-
-	    // Do not let the range behind the camera throw off the calculation.
-	    if (range[0] < 0.0) {
-	      range[0] = 0.0;
-	    }
-
-	    // Give ourselves a little breathing room
-	    range[0] = 0.99 * range[0] - (range[1] - range[0]) * 0.5;
-	    range[1] = 1.01 * range[1] + (range[1] - range[0]) * 0.5;
-
-	    // Make sure near is not bigger than far
-	    range[0] = (range[0] >= range[1]) ? (0.01 * range[1]) : (range[0]);
-
-	    // Make sure near is at least some fraction of far - this prevents near
-	    // from being behind the camera or too close in front. How close is too
-	    // close depends on the resolution of the depth buffer.
-	    if (!m_this.m_nearClippingPlaneTolerance) {
-	      m_this.m_nearClippingPlaneTolerance = 0.01;
-
-	      if (m_this.m_depthBits && m_this.m_depthBits > 16) {
-	        m_this.m_nearClippingPlaneTolerance = 0.001;
-	      }
-	    }
-
-	    // make sure the front clipping range is not too far from the far clippnig
-	    // range, this is to make sure that the zbuffer resolution is effectively
-	    // used.
-	    if (range[0] < m_this.m_nearClippingPlaneTolerance * range[1]) {
-	      range[0] = m_this.m_nearClippingPlaneTolerance * range[1];
-	    }
-
-	    m_this.m_camera.setClippingRange(range[0], range[1]);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Resize viewport given a width and height
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resize = function (width, height) {
-	    if (!width || !height) {
-	      return;
-	    }
-	    // @note: where do m_this.m_x and m_this.m_y come from?
-	    m_this.positionAndResize(m_this.m_x, m_this.m_y, width, height);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Resize viewport given a position, width and height
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.positionAndResize = function (x, y, width, height) {
-	    var i;
-
-	    // TODO move this code to camera
-	    if (x < 0 || y < 0 || width <= 0 || height <= 0) {
-	      console.log('[error] Invalid position and resize values',
-	        x, y, width, height);
-	      return;
-	    }
-
-	    //If we're allowing this renderer to resize ...
-	    if (m_this.m_resizable) {
-	      m_this.m_width = width;
-	      m_this.m_height = height;
-
-	      m_this.m_camera.setViewAspect(width / height);
-	      m_this.m_camera.setParallelExtents({width: width, height: height});
-	      m_this.modified();
-	    }
-
-	    if (m_this.m_renderPasses) {
-	      for (i = 0; i < m_this.m_renderPasses.length; i += 1) {
-	        m_this.m_renderPasses[i].resize(width, height);
-	        m_this.m_renderPasses[i].renderer().positionAndResize(x, y, width, height);
-	      }
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add new actor to the collection
-	   *
-	   * @param actor
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addActor = function (actor) {
-	    if (actor instanceof vgl.actor) {
-	      m_this.m_sceneRoot.addChild(actor);
-	      m_this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return true if this renderer has this actor attached, false otherwise.
-	   *
-	   * @param actor
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasActor = function (actor) {
-	    return m_this.m_sceneRoot.hasChild(actor);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add an array of actors to the collection
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addActors = function (actors) {
-	    var i = null;
-	    if (actors instanceof Array) {
-	      for (i = 0; i < actors.length; i += 1) {
-	        m_this.m_sceneRoot.addChild(actors[i]);
-	      }
-	      m_this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove the actor from the collection
-	   *
-	   * @param actor
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeActor = function (actor) {
-	    if (m_this.m_sceneRoot.children().indexOf(actor) !== -1) {
-	      /* When we remove an actor, free the VBOs of the mapper and mark the
-	       * mapper as modified; it will reallocate VBOs as necessary. */
-	      if (actor.mapper()) {
-	        actor.mapper().deleteVertexBufferObjects();
-	        actor.mapper().modified();
-	      }
-	      m_this.m_sceneRoot.removeChild(actor);
-	      m_this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove actors from the collection
-	   *
-	   * @param actors
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeActors = function (actors) {
-	    if (!(actors instanceof Array)) {
-	      return false;
-	    }
-
-	    var i;
-	    for (i = 0; i < actors.length; i += 1) {
-	      m_this.m_sceneRoot.removeChild(actors[i]);
-	    }
-	    m_this.modified();
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove all actors for a renderer
-	   *
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeAllActors = function () {
-	    return m_this.m_sceneRoot.removeChildren();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Transform a point in the world space to display space
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.worldToDisplay = function (worldPt, viewMatrix, projectionMatrix, width,
-	                                 height) {
-	    var viewProjectionMatrix = mat4.create(),
-	        winX = null,
-	        winY = null,
-	        winZ = null,
-	        winW = null,
-	        clipPt = null;
-
-	    mat4.multiply(viewProjectionMatrix, projectionMatrix, viewMatrix);
-
-	    // Transform world to clipping coordinates
-	    clipPt = vec4.create();
-	    vec4.transformMat4(clipPt, worldPt, viewProjectionMatrix);
-
-	    if (clipPt[3] !== 0.0) {
-	      clipPt[0] = clipPt[0] / clipPt[3];
-	      clipPt[1] = clipPt[1] / clipPt[3];
-	      clipPt[2] = clipPt[2] / clipPt[3];
-	      clipPt[3] = 1.0;
-	    }
-
-	    winX = (((clipPt[0]) + 1) / 2.0) * width;
-	    // We calculate -point3D.getY() because the screen Y axis is
-	    // oriented top->down
-	    winY = ((1 - clipPt[1]) / 2.0) * height;
-	    winZ = clipPt[2];
-	    winW = clipPt[3];
-
-	    return vec4.fromValues(winX, winY, winZ, winW);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Transform a point in display space to world space
-	   * @param displayPt
-	   * @param viewMatrix
-	   * @param projectionMatrix
-	   * @param width
-	   * @param height
-	   * @returns {vec4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.displayToWorld = function (displayPt, viewMatrix, projectionMatrix,
-	                                 width, height) {
-	    var x = (2.0 * displayPt[0] / width) - 1,
-	        y = -(2.0 * displayPt[1] / height) + 1,
-	        z = displayPt[2],
-	        viewProjectionInverse = mat4.create(),
-	        worldPt = null;
-
-	    mat4.multiply(viewProjectionInverse, projectionMatrix, viewMatrix);
-	    mat4.invert(viewProjectionInverse, viewProjectionInverse);
-
-	    worldPt = vec4.fromValues(x, y, z, 1);
-	    vec4.transformMat4(worldPt, worldPt, viewProjectionInverse);
-	    if (worldPt[3] !== 0.0) {
-	      worldPt[0] = worldPt[0] / worldPt[3];
-	      worldPt[1] = worldPt[1] / worldPt[3];
-	      worldPt[2] = worldPt[2] / worldPt[3];
-	      worldPt[3] = 1.0;
-	    }
-
-	    return worldPt;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get the focusDisplayPoint
-	   * @returns {vec4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.focusDisplayPoint = function () {
-	    var focalPoint = m_this.m_camera.focalPoint(),
-	        focusWorldPt = vec4.fromValues(
-	        focalPoint[0], focalPoint[1], focalPoint[2], 1);
-
-	    return m_this.worldToDisplay(
-	      focusWorldPt, m_this.m_camera.viewMatrix(),
-	      m_this.m_camera.projectionMatrix(), m_this.m_width, m_this.m_height);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Will the scene be reset.
-	   * @returns {bool}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetScene = function () {
-	    return m_this.m_resetScene;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * If true the scene will be reset, otherwise the scene will not be
-	   * automatically reset.
-	   *
-	   * @param reset
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setResetScene = function (reset) {
-	    if (m_this.m_resetScene !== reset) {
-	      m_this.m_resetScene = reset;
-	      m_this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Will the clipping range be reset
-	   * @returns {bool}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resetClippingRange = function () {
-	    return m_this.m_resetClippingRange;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * If true the camera clipping range will be reset, otherwise the scene will
-	   * not be automatically reset.
-	   *
-	   * @param reset
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setResetClippingRange = function (reset) {
-	    if (m_this.m_resetClippingRange !== reset) {
-	      m_this.m_resetClippingRange = reset;
-	      m_this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addRenderPass = function (renPass) {
-	    var i;
-
-	    if (m_this.m_renderPasses) {
-	      for (i = 0; i < m_this.m_renderPasses.length; i += 1) {
-	        if (renPass === m_this.m_renderPasses[i]) {
-	          return;
-	        }
-	      }
-	    }
-
-	    m_this.m_renderPasses = [];
-	    m_this.m_renderPasses.push(renPass);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeRenderPass = function (renPass) {
-	    renPass = renPass; // TODO Implement this
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._cleanup = function (renderState) {
-	    var children = m_this.m_sceneRoot.children();
-	    for (var i = 0; i < children.length; i += 1) {
-	      var actor = children[i];
-	      actor.material()._cleanup(renderState);
-	      actor.mapper()._cleanup(renderState);
-	    }
-
-	    m_this.m_sceneRoot.removeChildren();
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.renderer, vgl.graphicsObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class renderWindow
-	 *
-	 * @class
-	 * @returns {vgl.renderWindow}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.renderWindow = function (canvas) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.renderWindow)) {
-	    return new vgl.renderWindow(canvas);
-	  }
-	  vgl.graphicsObject.call(this);
-
-	  /** @private */
-	  var m_this = this,
-	      m_x = 0,
-	      m_y = 0,
-	      m_width = 400,
-	      m_height = 400,
-	      m_canvas = canvas,
-	      m_activeRender = null,
-	      m_renderers = [],
-	      m_context = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get size of the render window
-	   *
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.windowSize = function () {
-	    return [m_width, m_height];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set size of the render window
-	   *
-	   * @param width
-	   * @param height
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setWindowSize = function (width, height) {
-
-	    if (m_width !== width || m_height !== height) {
-	      m_width = width;
-	      m_height = height;
-
-	      m_this.modified();
-
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get window position (top left coordinates)
-	   *
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.windowPosition = function () {
-	    return [m_x, m_y];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set window position (top left coordinates)
-	   *
-	   * @param x
-	   * @param y
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setWindowPosition = function (x, y) {
-	    if ((m_x !== x) || (m_y !== y)) {
-	      m_x = x;
-	      m_y = y;
-	      m_this.modified();
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return all renderers contained in the render window
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.renderers = function () {
-	    return m_renderers;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get active renderer of the the render window
-	   *
-	   * @returns vgl.renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.activeRenderer = function () {
-	    return m_activeRender;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add renderer to the render window
-	   *
-	   * @param ren
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.addRenderer = function (ren) {
-	    if (m_this.hasRenderer(ren) === false) {
-	      m_renderers.push(ren);
-	      ren.setRenderWindow(m_this);
-	      if (m_activeRender === null) {
-	        m_activeRender = ren;
-	      }
-	      if (ren.layer() !== 0) {
-	        ren.camera().setClearMask(vgl.GL.DepthBufferBit);
-	      }
-	      m_this.modified();
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Remove renderer from the render window
-	   *
-	   * @param ren
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.removeRenderer = function (ren) {
-	    var index = m_renderers.indexOf(ren);
-	    if (index !== -1) {
-	      if (m_activeRender === ren) {
-	        m_activeRender = null;
-	      }
-	      m_renderers.splice(index, 1);
-	      m_this.modified();
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return a renderer at a given index
-	   *
-	   * @param index
-	   * @returns {vgl.renderer}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getRenderer = function (index) {
-	    if (index < m_renderers.length) {
-	      return m_renderers[index];
-	    }
-
-	    console.log('[WARNING] Out of index array');
-	    return null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if the renderer exists
-	   *
-	   * @param ren
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.hasRenderer = function (ren) {
-	    var i;
-	    for (i = 0; i < m_renderers.length; i += 1) {
-	      if (ren === m_renderers[i]) {
-	        return true;
-	      }
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Resize window
-	   *
-	   * @param width
-	   * @param height
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.resize = function (width, height) {
-	    m_this.positionAndResize(m_x, m_y, width, height);
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Resize and reposition the window
-	   *
-	   * @param x
-	   * @param y
-	   * @param width
-	   * @param height
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.positionAndResize = function (x, y, width, height) {
-	    m_x = x;
-	    m_y = y;
-	    m_width = width;
-	    m_height = height;
-	    var i;
-	    for (i = 0; i < m_renderers.length; i += 1) {
-	      m_renderers[i].positionAndResize(m_x, m_y, m_width, m_height);
-	    }
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create the window
-	   *
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._setup = function (renderState) {
-	    renderState = renderState; /* unused parameter */
-	    m_context = null;
-
-	    try {
-	      // Try to grab the standard context. If it fails, fallback to
-	      // experimental.
-	      m_context = m_canvas.getContext('webgl') ||
-	            m_canvas.getContext('experimental-webgl');
-
-	      // Set width and height of renderers if not set already
-	      var i;
-	      for (i = 0; i < m_renderers.length; i += 1) {
-	        if ((m_renderers[i].width() > m_width) ||
-	            m_renderers[i].width() === 0 ||
-	            (m_renderers[i].height() > m_height) ||
-	            m_renderers[i].height() === 0) {
-	          m_renderers[i].resize(m_x, m_y, m_width, m_height);
-	        }
-	      }
-
-	      return true;
-	    } catch (e) {
-	    }
-
-	    // If we don't have a GL context, give up now
-	    if (!m_context) {
-	      console('[ERROR] Unable to initialize WebGL. Your browser may not support it.');
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return current GL context
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.context = function () {
-	    return m_context;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Delete this window and release any graphics resources
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._cleanup = function (renderState) {
-	    var i;
-	    for (i = 0; i < m_renderers.length; i += 1) {
-	      m_renderers[i]._cleanup(renderState);
-	    }
-	    vgl.clearCachedShaders(renderState ? renderState.m_context : null);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the scene
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function () {
-	    var i;
-	    m_renderers.sort(function (a, b) { return a.layer() - b.layer(); });
-	    for (i = 0; i < m_renderers.length; i += 1) {
-	      m_renderers[i].render();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get the focusDisplayPoint from the activeRenderer
-	   * @returns {vec4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.focusDisplayPoint = function () {
-	    return m_activeRender.focusDisplayPoint();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Transform a point in display space to world space
-	   * @param {Number} x
-	   * @param {Number} y
-	   * @param {vec4} focusDisplayPoint
-	   * @returns {vec4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.displayToWorld = function (x, y, focusDisplayPoint, ren) {
-	    ren = ren === undefined ? ren = m_activeRender : ren;
-
-	    var camera = ren.camera();
-	    if (!focusDisplayPoint) {
-	      focusDisplayPoint = ren.focusDisplayPoint();
-	    }
-
-	    return ren.displayToWorld(
-	      vec4.fromValues(x, y, focusDisplayPoint[2], 1.0), camera.viewMatrix(),
-	      camera.projectionMatrix(), m_width, m_height);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Transform a point in display space to world space
-	   * @param {Number} x
-	   * @param {Number} y
-	   * @param {vec4} focusDisplayPoint
-	   * @returns {vec4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.worldToDisplay = function (x, y, z, ren) {
-	    ren = ren === undefined ? ren = m_activeRender : ren;
-	    var camera = ren.camera();
-	    return ren.worldToDisplay(
-	      vec4.fromValues(x, y, z, 1.0), camera.viewMatrix(),
-	      camera.projectionMatrix(), m_width, m_height);
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.renderWindow, vgl.graphicsObject);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec3, vec4, mat4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class camera
-	 *
-	 * @class
-	 * @returns {vgl.camera}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.camera = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.camera)) {
-	    return new vgl.camera(arg);
-	  }
-	  vgl.groupNode.call(this);
-	  arg = arg || {};
-
-	  /** @private */
-	  var m_viewAngle = (Math.PI * 30) / 180.0,
-	      m_position = vec4.fromValues(0.0, 0.0, 1.0, 1.0),
-	      m_focalPoint = vec4.fromValues(0.0, 0.0, 0.0, 1.0),
-	      m_centerOfRotation = vec3.fromValues(0.0, 0.0, 0.0),
-	      m_viewUp = vec4.fromValues(0.0, 1.0, 0.0, 0.0),
-	      m_rightDir = vec4.fromValues(1.0, 0.0, 0.0, 0.0),
-	      m_near = 0.01,
-	      m_far = 10000.0,
-	      m_viewAspect = 1.0,
-	      m_directionOfProjection = vec4.fromValues(0.0, 0.0, -1.0, 0.0),
-	      m_viewPlaneNormal = vec4.fromValues(0.0, 0.0, 1.0, 0.0),
-	      m_viewMatrix = mat4.create(),
-	      m_projectionMatrix = mat4.create(),
-	      m_computeModelViewMatrixTime = vgl.timestamp(),
-	      m_computeProjectMatrixTime = vgl.timestamp(),
-	      m_left = -1.0,
-	      m_right = 1.0,
-	      m_top = +1.0,
-	      m_bottom = -1.0,
-	      m_parallelExtents = {zoom: 1, tilesize: 256},
-	      m_enableTranslation = true,
-	      m_enableRotation = true,
-	      m_enableScale = true,
-	      m_enableParallelProjection = false,
-	      m_clearColor = [0.0, 0.0, 0.0, 0.0],
-	      m_clearDepth = 1.0,
-	      /*jshint bitwise: false */
-	      m_clearMask = vgl.GL.COLOR_BUFFER_BIT |
-	                    vgl.GL.DEPTH_BUFFER_BIT;
-	  /*jshint bitwise: true */
-
-	  if (arg.parallelProjection !== undefined) {
-	    m_enableParallelProjection = arg.parallelProjection ? true : false;
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get view angle of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewAngle = function () {
-	    return m_viewAngle;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set view angle of the camera in degrees, which is converted to radians.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewAngleDegrees = function (a) {
-	    this.setViewAngle(Math.PI * a / 180.0);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set view angle of the camera in degrees, which is converted to radians.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewAngle = function (a) {
-	    if (m_enableScale) {
-	      m_viewAngle = a;
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get position of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.position = function () {
-	    return m_position;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set position of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPosition = function (x, y, z) {
-	    if (m_enableTranslation) {
-	      m_position = vec4.fromValues(x, y, z, 1.0);
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get focal point of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.focalPoint = function () {
-	    return m_focalPoint;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set focal point of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setFocalPoint = function (x, y, z) {
-	    if (m_enableRotation && m_enableTranslation) {
-	      m_focalPoint = vec4.fromValues(x, y, z, 1.0);
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get view-up direction of camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewUpDirection = function () {
-	    return m_viewUp;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set view-up direction of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewUpDirection = function (x, y, z) {
-	    m_viewUp = vec4.fromValues(x, y, z, 0);
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get center of rotation for camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.centerOfRotation = function () {
-	    return m_centerOfRotation;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set center of rotation for camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setCenterOfRotation = function (centerOfRotation) {
-	    m_centerOfRotation = centerOfRotation;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get clipping range of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.clippingRange = function () {
-	    return [m_near, m_far];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set clipping range of the camera
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setClippingRange = function (near, far) {
-	    m_near = near;
-	    m_far = far;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get view aspect
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewAspect = function () {
-	    return m_viewAspect;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set view aspect
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewAspect = function (aspect) {
-	    m_viewAspect = aspect;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return active mode for scaling (enabled / disabled)
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.enableScale = function () {
-	    return m_enableScale;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Enable/disable scaling
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setEnableScale = function (flag) {
-	    if (flag !== m_enableScale) {
-	      m_enableScale = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return m_enableScale;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return active mode for rotation (enabled / disabled)
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.enableRotation = function () {
-	    return m_enableRotation;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Enable / disable rotation
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setEnableRotation = function (flag) {
-	    if (flag !== m_enableRotation) {
-	      m_enableRotation = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return m_enableRotation;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return active mode for translation (enabled/disabled)
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.enableTranslation = function () {
-	    return m_enableTranslation;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Enable / disable translation
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setEnableTranslation = function (flag) {
-	    if (flag !== m_enableTranslation) {
-	      m_enableTranslation = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return m_enableTranslation;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return if parallel projection is enabled
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.isEnabledParallelProjection = function () {
-	    return m_enableParallelProjection;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Enable / disable parallel projection
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.enableParallelProjection = function (flag) {
-	    if (flag !== m_enableParallelProjection) {
-	      m_enableParallelProjection = flag;
-	      this.modified();
-	      return true;
-	    }
-
-	    return m_enableParallelProjection;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Enable / disable parallel projection
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setEnableParallelProjection = function (flag) {
-	    return this.enableParallelProjection(flag);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get parallel projection parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parallelProjection = function () {
-	    return {left: m_left, right: m_right, top: m_top, bottom: m_bottom};
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set parallel projection parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setParallelProjection = function (left, right, top, bottom) {
-	    m_left = left;
-	    m_right = right;
-	    m_top = top;
-	    m_bottom = bottom;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get parallel projection extents parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parallelExtents = function () {
-	    return m_parallelExtents;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set parallel projection extents parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setParallelExtents = function (extents) {
-	    var prop = ['width', 'height', 'zoom', 'tilesize'], mod = false, i, key;
-	    for (i = 0; i < prop.length; i += 1) {
-	      key = prop[i];
-	      if (extents[key] !== undefined &&
-	          extents[key] !== m_parallelExtents[key]) {
-	        m_parallelExtents[key] = extents[key];
-	        mod = true;
-	      }
-	    }
-	    if (mod && m_parallelExtents.width && m_parallelExtents.height &&
-	        m_parallelExtents.zoom !== undefined && m_parallelExtents.tilesize) {
-	      var unitsPerPixel = this.unitsPerPixel(m_parallelExtents.zoom,
-	                                             m_parallelExtents.tilesize);
-	      m_right = unitsPerPixel * m_parallelExtents.width / 2;
-	      m_left = -m_right;
-	      m_top = unitsPerPixel * m_parallelExtents.height / 2;
-	      m_bottom = -m_top;
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute the units per pixel.
-	   *
-	   * @param zoom: tile zoom level.
-	   * @param tilesize: number of pixels per tile (defaults to 256).
-	   * @returns: unitsPerPixel.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.unitsPerPixel = function (zoom, tilesize) {
-	    tilesize = tilesize || 256;
-	    return 360.0 * Math.pow(2, -zoom) / tilesize;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return direction of projection
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.directionOfProjection = function () {
-	    this.computeDirectionOfProjection();
-	    return m_directionOfProjection;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return view plane normal direction
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewPlaneNormal = function () {
-	    this.computeViewPlaneNormal();
-	    return m_viewPlaneNormal;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return view-matrix for the camera This method does not compute the
-	   * view-matrix for the camera. It is assumed that a call to computeViewMatrix
-	   * has been made earlier.
-	   *
-	   * @returns {mat4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewMatrix = function () {
-	    return this.computeViewMatrix();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set the view-matrix for the camera and mark that it is up to date so that
-	   * it won't be recomputed unless something else changes.
-	   *
-	   * @param {mat4} view: new view matrix.
-	   * @param {boolean} preserveType: if true, clone the input using slice.  This
-	   *    can be used to ensure the array is a specific precision.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewMatrix = function (view, preserveType) {
-	    if (!preserveType) {
-	      mat4.copy(m_viewMatrix, view);
-	    } else {
-	      m_viewMatrix = view.slice();
-	    }
-	    m_computeModelViewMatrixTime.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return camera projection matrix This method does not compute the
-	   * projection-matrix for the camera. It is assumed that a call to
-	   * computeProjectionMatrix has been made earlier.
-	   *
-	   * @returns {mat4}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.projectionMatrix = function () {
-	    return this.computeProjectionMatrix();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set the projection-matrix for the camera and mark that it is up to date so
-	   * that it won't be recomputed unless something else changes.
-	   *
-	   * @param {mat4} proj: new projection matrix.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setProjectionMatrix = function (proj) {
-	    mat4.copy(m_projectionMatrix, proj);
-	    m_computeProjectMatrixTime.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return clear mask used by this camera
-	   *
-	   * @returns {number}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.clearMask = function () {
-	    return m_clearMask;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set clear mask for camera
-	   *
-	   * @param mask
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setClearMask = function (mask) {
-	    m_clearMask = mask;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get clear color (background color) of the camera
-	   *
-	   * @returns {Array}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.clearColor = function () {
-	    return m_clearColor;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set clear color (background color) for the camera
-	   *
-	   * @param color RGBA
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setClearColor = function (r, g, b, a) {
-	    m_clearColor[0] = r;
-	    m_clearColor[1] = g;
-	    m_clearColor[2] = b;
-	    m_clearColor[3] = a;
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   * @returns {{1.0: null}}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.clearDepth = function () {
-	    return m_clearDepth;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *
-	   * @param depth
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setClearDepth = function (depth) {
-	    m_clearDepth = depth;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute direction of projection
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeDirectionOfProjection = function () {
-	    vec3.subtract(m_directionOfProjection, m_focalPoint, m_position);
-	    vec3.normalize(m_directionOfProjection, m_directionOfProjection);
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute view plane normal
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeViewPlaneNormal = function () {
-	    m_viewPlaneNormal[0] = -m_directionOfProjection[0];
-	    m_viewPlaneNormal[1] = -m_directionOfProjection[1];
-	    m_viewPlaneNormal[2] = -m_directionOfProjection[2];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Move camera closer or further away from the scene
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.zoom = function (d, dir) {
-	    if (d === 0) {
-	      return;
-	    }
-
-	    if (!m_enableTranslation) {
-	      return;
-	    }
-
-	    d = d * vec3.distance(m_focalPoint, m_position);
-	    if (!dir) {
-	      dir = m_directionOfProjection;
-	      m_position[0] = m_focalPoint[0] - d * dir[0];
-	      m_position[1] = m_focalPoint[1] - d * dir[1];
-	      m_position[2] = m_focalPoint[2] - d * dir[2];
-	    } else {
-	      m_position[0] = m_position[0] + d * dir[0];
-	      m_position[1] = m_position[1] + d * dir[1];
-	      m_position[2] = m_position[2] + d * dir[2];
-	    }
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Move camera sideways
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.pan = function (dx, dy, dz) {
-	    if (!m_enableTranslation) {
-	      return;
-	    }
-
-	    m_position[0] += dx;
-	    m_position[1] += dy;
-	    m_position[2] += dz;
-
-	    m_focalPoint[0] += dx;
-	    m_focalPoint[1] += dy;
-	    m_focalPoint[2] += dz;
-
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute camera coordinate axes
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeOrthogonalAxes = function () {
-	    this.computeDirectionOfProjection();
-	    vec3.cross(m_rightDir, m_directionOfProjection, m_viewUp);
-	    vec3.normalize(m_rightDir, m_rightDir);
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Rotate camera around center of rotation
-	   * @param dx Rotation around vertical axis in degrees
-	   * @param dy Rotation around horizontal axis in degrees
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.rotate = function (dx, dy) {
-	    if (!m_enableRotation) {
-	      return;
-	    }
-
-	    // Convert degrees into radians
-	    dx = 0.5 * dx * (Math.PI / 180.0);
-	    dy = 0.5 * dy * (Math.PI / 180.0);
-
-	    var mat = mat4.create(),
-	        inverseCenterOfRotation = new vec3.create();
-
-	    mat4.identity(mat);
-
-	    inverseCenterOfRotation[0] = -m_centerOfRotation[0];
-	    inverseCenterOfRotation[1] = -m_centerOfRotation[1];
-	    inverseCenterOfRotation[2] = -m_centerOfRotation[2];
-
-	    mat4.translate(mat, mat, m_centerOfRotation);
-	    mat4.rotate(mat, mat, dx, m_viewUp);
-	    mat4.rotate(mat, mat, dy, m_rightDir);
-	    mat4.translate(mat, mat, inverseCenterOfRotation);
-
-	    vec4.transformMat4(m_position, m_position, mat);
-	    vec4.transformMat4(m_focalPoint, m_focalPoint, mat);
-
-	    // Update viewup vector
-	    vec4.transformMat4(m_viewUp, m_viewUp, mat);
-	    vec4.normalize(m_viewUp, m_viewUp);
-
-	    // Update direction of projection
-	    this.computeOrthogonalAxes();
-
-	    // Mark modified
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute camera view matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeViewMatrix = function () {
-	    if (m_computeModelViewMatrixTime.getMTime() < this.getMTime()) {
-	      mat4.lookAt(m_viewMatrix, m_position, m_focalPoint, m_viewUp);
-	      m_computeModelViewMatrixTime.modified();
-	    }
-	    return m_viewMatrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Check if the texture should be aligned to the screen.  Alignment only
-	   * occurs if the parallel extents contain width, height, and a
-	   * close-to-integer zoom level, and if the units-per-pixel value has been
-	   * computed.  The camera must either be in parallel projection mode OR must
-	   * have a perspective camera which is oriented along the z-axis without any
-	   * rotation.
-	   *
-	   * @returns: either null if no alignment should occur, or an alignment object
-	   *           with the rounding value and offsets.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewAlignment = function () {
-	    if (!m_enableParallelProjection) {
-	      /* If we aren't in parallel projection mode, ensure that the projection
-	       * matrix meets strict specifications */
-	      var proj = this.projectionMatrix();
-	      if (proj[1] || proj[2] || proj[3] || proj[4] || proj[6] || proj[7] ||
-	          proj[8] || proj[9] || proj[12] || proj[13] || proj[15]) {
-	        return null;
-	      }
-	    }
-	    var unitsPerPixel = this.unitsPerPixel(m_parallelExtents.zoom,
-	                                           m_parallelExtents.tilesize);
-	    /* If we don't have screen dimensions, we can't know how to align pixels */
-	    if (!m_parallelExtents.width || !m_parallelExtents.height ||
-	        !unitsPerPixel) {
-	      return null;
-	    }
-	    /* If we aren't at an integer zoom level, we shouldn't align pixels.  If
-	     * we are really close to an integer zoom level, that is good enough. */
-	    if (parseFloat(m_parallelExtents.zoom.toFixed(6)) !==
-	        parseFloat(m_parallelExtents.zoom.toFixed(0))) {
-	      return null;
-	    }
-	    var align = {roundx: unitsPerPixel, roundy: unitsPerPixel, dx: 0, dy: 0};
-	    /* If the screen is an odd number of pixels, shift the view center to the
-	     * center of a pixel so that the pixels fit discretely across the screen.
-	     * If an even number of pixels, align the view center between pixels for
-	     * the same reason. */
-	    if (m_parallelExtents.width % 2) {
-	      align.dx = unitsPerPixel * 0.5;
-	    }
-	    if (m_parallelExtents.height % 2) {
-	      align.dy = unitsPerPixel * 0.5;
-	    }
-	    return align;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute camera projection matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.computeProjectionMatrix = function () {
-	    if (m_computeProjectMatrixTime.getMTime() < this.getMTime()) {
-	      if (!m_enableParallelProjection) {
-	        mat4.perspective(m_projectionMatrix, m_viewAngle, m_viewAspect, m_near, m_far);
-	      } else {
-	        mat4.ortho(m_projectionMatrix,
-	          m_left, m_right, m_bottom, m_top, m_near, m_far);
-	      }
-
-	      m_computeProjectMatrixTime.modified();
-	    }
-
-	    return m_projectionMatrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Convert a zoom level and window size to a camera height.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.zoomToHeight = function (zoom, width, height) {
-	    return vgl.zoomToHeight(zoom, width, height, m_viewAngle);
-	  };
-
-	  this.computeDirectionOfProjection();
-
-	  return this;
-	};
-
-	inherit(vgl.camera, vgl.groupNode);
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Convert a zoom level and window size to a camera height.
-	 *
-	 * @param zoom: Zoom level, as used in OSM maps.
-	 * @param width: width of the window.
-	 * @param height: height of the window.
-	 * @returns: perspective camera height.
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.zoomToHeight = function (zoom, width, height, viewAngle) {
-	  'use strict';
-	  viewAngle = viewAngle || (30 * Math.PI / 180.0);
-	  var newZ = 360 * Math.pow(2, -zoom);
-	  newZ /= Math.tan(viewAngle / 2) * 2 * 256 / height;
-	  return newZ;
-	};
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Convert a camera height and window size to a zoom level.
-	 *
-	 * @param z: perspective camera height.
-	 * @param width: width of the window.
-	 * @param height: height of the window.
-	 * @returns: zoom level.
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.heightToZoom = function (z, width, height, viewAngle) {
-	  'use strict';
-	  viewAngle = viewAngle || (30 * Math.PI / 180.0);
-	  z *= Math.tan(viewAngle / 2) * 2 * 256 / height;
-	  var zoom = -Math.log2(z / 360);
-	  return zoom;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit, $*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class interactorStyle
-	 *
-	 * @class vgl.interactorStyle
-	 * interactorStyle is a base class for all interactor styles
-	 * @returns {vgl.interactorStyle}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-	vgl.interactorStyle = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.interactorStyle)) {
-	    return new vgl.interactorStyle();
-	  }
-	  vgl.object.call(this);
-
-	  // Private member variables
-	  var m_that = this,
-	      m_viewer = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return viewer referenced by the interactor style
-	   *
-	   * @returns {null}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.viewer = function () {
-	    return m_viewer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set viewer for the interactor style
-	   *
-	   * @param viewer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setViewer = function (viewer) {
-	    if (viewer !== m_viewer) {
-	      m_viewer = viewer;
-	      $(m_viewer).on(vgl.event.mousePress, m_that.handleMouseDown);
-	      $(m_viewer).on(vgl.event.mouseRelease, m_that.handleMouseUp);
-	      $(m_viewer).on(vgl.event.mouseMove, m_that.handleMouseMove);
-	      $(m_viewer).on(vgl.event.mouseOut, m_that.handleMouseOut);
-	      $(m_viewer).on(vgl.event.mouseWheel, m_that.handleMouseWheel);
-	      $(m_viewer).on(vgl.event.keyPress, m_that.handleKeyPress);
-	      $(m_viewer).on(vgl.event.mouseContextMenu, m_that.handleContextMenu);
-	      $(m_viewer).on(vgl.event.click, m_that.handleClick);
-	      $(m_viewer).on(vgl.event.dblClick, m_that.handleDoubleClick);
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse down event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseDown = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse up event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseUp = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseMove = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseOut = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse wheel event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseWheel = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle click event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleClick = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle double click event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleDoubleClick = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle key press event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleKeyPress = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle context menu event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleContextMenu = function (event) {
-	    event = event; /* unused parameter */
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Reset to default
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.reset = function () {
-	    return true;
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.interactorStyle, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of trackballInteractorStyle
-	 *
-	 * @class vgl.trackballInteractorStyle
-	 * @returns {vgl.trackballInteractorStyle}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.trackballInteractorStyle = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.trackballInteractorStyle)) {
-	    return new vgl.trackballInteractorStyle();
-	  }
-	  vgl.interactorStyle.call(this);
-	  var m_that = this,
-	      m_leftMouseBtnDown = false,
-	      m_rightMouseBtnDown = false,
-	      m_midMouseBtnDown = false,
-	      m_outsideCanvas,
-	      m_currPos = {x: 0, y: 0},
-	      m_lastPos = {x: 0, y: 0};
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseMove = function (event) {
-	    var width = m_that.viewer().renderWindow().windowSize()[0],
-	        height = m_that.viewer().renderWindow().windowSize()[1],
-	        ren = m_that.viewer().renderWindow().activeRenderer(),
-	        cam = ren.camera(), coords = m_that.viewer().relMouseCoords(event),
-	        fp, fdp, fwp, dp1, dp2, wp1, wp2, dx, dy, dz, m_zTrans;
-
-	    m_outsideCanvas = false;
-	    m_currPos = {x: 0, y: 0};
-
-	    if ((coords.x < 0) || (coords.x > width)) {
-	      m_currPos.x = 0;
-	      m_outsideCanvas = true;
-	    } else {
-	      m_currPos.x = coords.x;
-	    }
-	    if ((coords.y < 0) || (coords.y > height)) {
-	      m_currPos.y = 0;
-	      m_outsideCanvas = true;
-	    } else {
-	      m_currPos.y = coords.y;
-	    }
-	    if (m_outsideCanvas === true) {
-	      return;
-	    }
-
-	    fp = cam.focalPoint();
-	    fwp = vec4.fromValues(fp[0], fp[1], fp[2], 1);
-	    fdp = ren.worldToDisplay(fwp, cam.viewMatrix(),
-	                              cam.projectionMatrix(), width, height);
-
-	    dp1 = vec4.fromValues(m_currPos.x, m_currPos.y, fdp[2], 1.0);
-	    dp2 = vec4.fromValues(m_lastPos.x, m_lastPos.y, fdp[2], 1.0);
-
-	    wp1 = ren.displayToWorld(dp1, cam.viewMatrix(), cam.projectionMatrix(),
-	                             width, height);
-	    wp2 = ren.displayToWorld(dp2, cam.viewMatrix(), cam.projectionMatrix(),
-	                             width, height);
-
-	    dx = wp1[0] - wp2[0];
-	    dy = wp1[1] - wp2[1];
-	    dz = wp1[2] - wp2[2];
-
-	    if (m_midMouseBtnDown) {
-	      cam.pan(-dx, -dy, -dz);
-	      m_that.viewer().render();
-	    }
-	    if (m_leftMouseBtnDown) {
-	      cam.rotate((m_lastPos.x - m_currPos.x),
-	      (m_lastPos.y - m_currPos.y));
-	      ren.resetCameraClippingRange();
-	      m_that.viewer().render();
-	    }
-	    if (m_rightMouseBtnDown) {
-	      /// 2.0 is the speed up factor
-	      m_zTrans = 2.0 * (m_currPos.y - m_lastPos.y) / height;
-
-	      // Calculate zoom scale here
-	      if (m_zTrans > 0) {
-	        cam.zoom(1 - Math.abs(m_zTrans));
-	      } else {
-	        cam.zoom(1 + Math.abs(m_zTrans));
-	      }
-	      ren.resetCameraClippingRange();
-	      m_that.viewer().render();
-	    }
-	    m_lastPos.x = m_currPos.x;
-	    m_lastPos.y = m_currPos.y;
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse down event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseDown = function (event) {
-	    var coords;
-
-	    if (event.button === 0) {
-	      m_leftMouseBtnDown = true;
-	    }
-	    if (event.button === 1) {
-	      m_midMouseBtnDown = true;
-	    }
-	    if (event.button === 2) {
-	      m_rightMouseBtnDown = true;
-	    }
-	    coords = m_that.viewer().relMouseCoords(event);
-	    if (coords.x < 0) {
-	      m_lastPos.x = 0;
-	    } else {
-	      m_lastPos.x = coords.x;
-	    }
-	    if (coords.y < 0) {
-	      m_lastPos.y = 0;
-	    } else {
-	      m_lastPos.y = coords.y;
-	    }
-	    return false;
-	  };
-
-	  // @note We never get mouse up from scroll bar: See the bug report here
-	  // http://bugs.jquery.com/ticket/8184
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse up event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseUp = function (event) {
-	    if (event.button === 0) {
-	      m_leftMouseBtnDown = false;
-	    }
-	    if (event.button === 1) {
-	      m_midMouseBtnDown = false;
-	    }
-	    if (event.button === 2) {
-	      m_rightMouseBtnDown = false;
-	    }
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse wheel event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseWheel = function (event) {
-	    var ren = m_that.viewer().renderWindow().activeRenderer(),
-	        cam = ren.camera();
-
-	    // TODO Compute zoom factor intelligently
-	    if (event.originalEvent.wheelDelta < 0) {
-	      cam.zoom(0.9);
-	    } else {
-	      cam.zoom(1.1);
-	    }
-	    ren.resetCameraClippingRange();
-	    m_that.viewer().render();
-	    return true;
-	  };
-
-	  return this;
-	};
-	inherit(vgl.trackballInteractorStyle, vgl.interactorStyle);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of pvwInteractorStyle (for ParaViewWeb)
-	 *
-	 * @class vgl.pvwInteractorStyle
-	 * @returns {vgl.pvwInteractorStyle}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.pvwInteractorStyle = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.pvwInteractorStyle)) {
-	    return new vgl.pvwInteractorStyle();
-	  }
-	  vgl.trackballInteractorStyle.call(this);
-	  var m_that = this,
-	      m_leftMouseButtonDown = false,
-	      m_rightMouseButtonDown = false,
-	      m_middleMouseButtonDown = false,
-	      m_width,
-	      m_height,
-	      m_renderer,
-	      m_camera,
-	      m_outsideCanvas,
-	      m_coords,
-	      m_currentMousePos,
-	      m_focalPoint,
-	      m_focusWorldPt,
-	      m_focusDisplayPt,
-	      m_displayPt1,
-	      m_displayPt2,
-	      m_worldPt1,
-	      m_worldPt2,
-	      m_dx,
-	      m_dy,
-	      m_dz,
-	      m_zTrans,
-	      m_mouseLastPos = {
-	        x: 0,
-	        y: 0
-	      };
-
-	  function render() {
-	    m_renderer.resetCameraClippingRange();
-	    m_that.viewer().render();
-	  }
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseMove = function (event) {
-	    var rens = [], i = null, secCameras = [], deltaxy = null;
-	    m_width = m_that.viewer().renderWindow().windowSize()[0];
-	    m_height = m_that.viewer().renderWindow().windowSize()[1];
-	    m_renderer = m_that.viewer().renderWindow().activeRenderer();
-	    m_camera = m_renderer.camera();
-	    m_outsideCanvas = false;
-	    m_coords = m_that.viewer().relMouseCoords(event);
-	    m_currentMousePos = {
-	      x: 0,
-	      y: 0
-	    };
-
-	    // Get secondary cameras
-	    rens = m_that.viewer().renderWindow().renderers();
-	    for (i = 0; i < rens.length; i += 1) {
-	      if (m_renderer !== rens[i]) {
-	        secCameras.push(rens[i].camera());
-	      }
-	    }
-
-	    if ((m_coords.x < 0) || (m_coords.x > m_width)) {
-	      m_currentMousePos.x = 0;
-	      m_outsideCanvas = true;
-	    } else {
-	      m_currentMousePos.x = m_coords.x;
-	    }
-	    if ((m_coords.y < 0) || (m_coords.y > m_height)) {
-	      m_currentMousePos.y = 0;
-	      m_outsideCanvas = true;
-	    } else {
-	      m_currentMousePos.y = m_coords.y;
-	    }
-	    if (m_outsideCanvas === true) {
-	      return;
-	    }
-	    m_focalPoint = m_camera.focalPoint();
-	    m_focusWorldPt = vec4.fromValues(m_focalPoint[0], m_focalPoint[1],
-	                                     m_focalPoint[2], 1);
-	    m_focusDisplayPt = m_renderer.worldToDisplay(m_focusWorldPt,
-	        m_camera.viewMatrix(), m_camera.projectionMatrix(), m_width, m_height);
-	    m_displayPt1 = vec4.fromValues(
-	      m_currentMousePos.x, m_currentMousePos.y, m_focusDisplayPt[2], 1.0);
-	    m_displayPt2 = vec4.fromValues(
-	      m_mouseLastPos.x, m_mouseLastPos.y, m_focusDisplayPt[2], 1.0);
-	    m_worldPt1 = m_renderer.displayToWorld(
-	      m_displayPt1, m_camera.viewMatrix(), m_camera.projectionMatrix(),
-	      m_width, m_height);
-	    m_worldPt2 = m_renderer.displayToWorld(
-	      m_displayPt2, m_camera.viewMatrix(), m_camera.projectionMatrix(),
-	      m_width, m_height);
-
-	    m_dx = m_worldPt1[0] - m_worldPt2[0];
-	    m_dy = m_worldPt1[1] - m_worldPt2[1];
-	    m_dz = m_worldPt1[2] - m_worldPt2[2];
-
-	    if (m_middleMouseButtonDown) {
-	      m_camera.pan(-m_dx, -m_dy, -m_dz);
-	      render();
-	    }
-	    if (m_leftMouseButtonDown) {
-	      deltaxy = [(m_mouseLastPos.x - m_currentMousePos.x),
-	      (m_mouseLastPos.y - m_currentMousePos.y)];
-	      m_camera.rotate(deltaxy[0], deltaxy[1]);
-
-	      // Apply rotation to all other cameras
-	      for (i = 0; i < secCameras.length; i += 1) {
-	        secCameras[i].rotate(deltaxy[0], deltaxy[1]);
-	      }
-
-	      // Apply rotation to all other cameras
-	      for (i = 0; i < rens.length; i += 1) {
-	        rens[i].resetCameraClippingRange();
-	      }
-	      render();
-	    }
-	    if (m_rightMouseButtonDown) {
-	      /// 2.0 is the speed up factor.
-	      m_zTrans = 2.0 * (m_currentMousePos.y - m_mouseLastPos.y) / m_height;
-
-	      // Calculate zoom scale here
-	      if (m_zTrans > 0) {
-	        m_camera.zoom(1 - Math.abs(m_zTrans));
-	      } else {
-	        m_camera.zoom(1 + Math.abs(m_zTrans));
-	      }
-	      render();
-	    }
-	    m_mouseLastPos.x = m_currentMousePos.x;
-	    m_mouseLastPos.y = m_currentMousePos.y;
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse down event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseDown = function (event) {
-	    if (event.button === 0) {
-	      m_leftMouseButtonDown = true;
-	    }
-	    if (event.button === 1) {
-	      m_middleMouseButtonDown = true;
-	    }
-	    if (event.button === 2) {
-	      m_rightMouseButtonDown = true;
-	    }
-	    m_coords = m_that.viewer().relMouseCoords(event);
-	    if (m_coords.x < 0) {
-	      m_mouseLastPos.x = 0;
-	    } else {
-	      m_mouseLastPos.x = m_coords.x;
-	    }
-	    if (m_coords.y < 0) {
-	      m_mouseLastPos.y = 0;
-	    } else {
-	      m_mouseLastPos.y = m_coords.y;
-	    }
-	    return false;
-	  };
-
-	  // @note We never get mouse up from scroll bar: See the bug report here
-	  // http://bugs.jquery.com/ticket/8184
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse up event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseUp = function (event) {
-	    if (event.button === 0) {
-	      m_leftMouseButtonDown = false;
-	    }
-	    if (event.button === 1) {
-	      m_middleMouseButtonDown = false;
-	    }
-	    if (event.button === 2) {
-	      m_rightMouseButtonDown = false;
-	    }
-	    return false;
-	  };
-
-	  return this;
-	};
-	inherit(vgl.pvwInteractorStyle, vgl.trackballInteractorStyle);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global window, vgl, inherit, $*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class viewer
-	 *
-	 * @param canvas
-	 * @returns {vgl.viewer}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.viewer = function (canvas, options) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.viewer)) {
-	    return new vgl.viewer(canvas, options);
-	  }
-
-	  vgl.object.call(this);
-
-	  var m_that = this,
-	      m_canvas = canvas,
-	      m_ready = true,
-	      m_interactorStyle = null,
-	      m_renderer = vgl.renderer(options),
-	      m_renderWindow = vgl.renderWindow(m_canvas);
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get canvas of the viewer
-	   *
-	   * @returns {*}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.canvas = function () {
-	    return m_canvas;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Return render window of the viewer
-	   *
-	   * @returns {vgl.renderWindow}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.renderWindow = function () {
-	    return m_renderWindow;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Initialize the viewer
-	   *
-	   * This is a must call or otherwise render context may not initialized
-	   * properly.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.init = function () {
-	    if (m_renderWindow !== null) {
-	      m_renderWindow._setup();
-	    } else {
-	      console.log('[ERROR] No render window attached');
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   *  Remove the viewer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.exit = function (renderState) {
-	    if (m_renderWindow !== null) {
-	      m_renderWindow._cleanup(renderState);
-	    } else {
-	      console.log('[ERROR] No render window attached');
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get interactor style of the viewer
-	   *
-	   * @returns {vgl.interactorStyle}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.interactorStyle = function () {
-	    return m_interactorStyle;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set interactor style to be used by the viewer
-	   *
-	   * @param {vgl.interactorStyle} style
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setInteractorStyle = function (style) {
-	    if (style !== m_interactorStyle) {
-	      m_interactorStyle = style;
-	      m_interactorStyle.setViewer(this);
-	      this.modified();
-	    }
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse down event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseDown = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      // Only prevent default action for right mouse button
-	      if (event.button === 2) {
-	        fixedEvent.preventDefault();
-	      }
-	      fixedEvent.state = 'down';
-	      fixedEvent.type = vgl.event.mousePress;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse up event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseUp = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.state = 'up';
-	      fixedEvent.type = vgl.event.mouseRelease;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseMove = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.mouseMove;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse wheel scroll
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseWheel = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.mouseWheel;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle mouse move event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleMouseOut = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.mouseOut;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle key press event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleKeyPress = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.keyPress;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return true;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle context menu event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleContextMenu = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.contextMenu;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle click event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleClick = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.click;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Handle double click event
-	   *
-	   * @param event
-	   * @returns {boolean}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.handleDoubleClick = function (event) {
-	    if (m_ready === true) {
-	      var fixedEvent = $.event.fix(event || window.event);
-	      fixedEvent.preventDefault();
-	      fixedEvent.type = vgl.event.dblClick;
-	      $(m_that).trigger(fixedEvent);
-	    }
-
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get mouse coodinates related to canvas
-	   *
-	   * @param event
-	   * @returns {{x: number, y: number}}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.relMouseCoords = function (event) {
-	    if (event.pageX === undefined || event.pageY === undefined) {
-	      throw 'Missing attributes pageX and pageY on the event';
-	    }
-
-	    var totalOffsetX = 0,
-	        totalOffsetY = 0,
-	        canvasX = 0,
-	        canvasY = 0,
-	        currentElement = m_canvas;
-
-	    do {
-	      totalOffsetX += currentElement.offsetLeft - currentElement.scrollLeft;
-	      totalOffsetY += currentElement.offsetTop - currentElement.scrollTop;
-	      currentElement = currentElement.offsetParent;
-	    } while (currentElement);
-
-	    canvasX = event.pageX - totalOffsetX;
-	    canvasY = event.pageY - totalOffsetY;
-
-	    return {
-	      x: canvasX,
-	      y: canvasY
-	    };
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function () {
-	    m_renderWindow.render();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind canvas mouse events to their default handlers
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.bindEventHandlers = function () {
-	    $(m_canvas).on('mousedown', this.handleMouseDown);
-	    $(m_canvas).on('mouseup', this.handleMouseUp);
-	    $(m_canvas).on('mousemove', this.handleMouseMove);
-	    $(m_canvas).on('mousewheel', this.handleMouseWheel);
-	    $(m_canvas).on('contextmenu', this.handleContextMenu);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo earlier binded  handlers for canvas mouse events
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.unbindEventHandlers = function () {
-	    $(m_canvas).off('mousedown', this.handleMouseDown);
-	    $(m_canvas).off('mouseup', this.handleMouseUp);
-	    $(m_canvas).off('mousemove', this.handleMouseMove);
-	    $(m_canvas).off('mousewheel', this.handleMouseWheel);
-	    $(m_canvas).off('contextmenu', this.handleContextMenu);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Initialize
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this._init = function () {
-	    this.bindEventHandlers();
-	    m_renderWindow.addRenderer(m_renderer);
-	  };
-
-	  this._init();
-	  return this;
-	};
-
-	inherit(vgl.viewer, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class shader
-	 *
-	 * @param type
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.shader = function (type) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.shader)) {
-	    return new vgl.shader(type);
-	  }
-	  vgl.object.call(this);
-
-	  var m_shaderContexts = [],
-	      m_shaderType = type,
-	      m_shaderSource = '';
-
-	  /**
-	   * A shader can be associated with multiple contexts.  Each context needs to
-	   * be compiled and attached separately.  These are tracked in the
-	   * m_shaderContexts array.
-	   *
-	   * @param renderState a renderState that includes a m_context value.
-	   * @return an object with context, compileTimestamp, and, if compiled, a
-	   *    shaderHandle entry.
-	   */
-	  this._getContextEntry = function (renderState) {
-	    var context = renderState.m_context, i, entry;
-	    for (i = 0; i < m_shaderContexts.length; i += 1) {
-	      if (m_shaderContexts[i].context === context) {
-	        return m_shaderContexts[i];
-	      }
-	    }
-	    entry = {
-	      context: context,
-	      compileTimestamp: vgl.timestamp()
-	    };
-	    m_shaderContexts.push(entry);
-	    return entry;
-	  };
-
-	  /**
-	   * Remove the context from the list of tracked contexts.  This allows the
-	   * associated shader handle to be GCed.  Does nothing if the context is not
-	   * in the list of tracked contexts.
-	   *
-	   * @param renderState a renderState that includes a m_context value.
-	   */
-	  this.removeContext = function (renderState) {
-	    var context = renderState.m_context, i;
-	    for (i = 0; i < m_shaderContexts.length; i += 1) {
-	      if (m_shaderContexts[i].context === context) {
-	        m_shaderContexts.splice(i, 1);
-	        return;
-	      }
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get shader handle
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.shaderHandle = function (renderState) {
-	    var entry = this._getContextEntry(renderState);
-	    return entry.shaderHandle;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get type of the shader
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.shaderType = function () {
-	    return m_shaderType;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get shader source
-	   *
-	   * @returns {string}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.shaderSource = function () {
-	    return m_shaderSource;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set shader source
-	   *
-	   * @param {string} source
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setShaderSource = function (source) {
-	    m_shaderSource = source;
-	    this.modified();
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compile the shader
-	   *
-	   * @returns {null}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.compile = function (renderState) {
-	    var entry = this._getContextEntry(renderState);
-	    if (this.getMTime() < entry.compileTimestamp.getMTime()) {
-	      return entry.shaderHandle;
-	    }
-
-	    renderState.m_context.deleteShader(entry.shaderHandle);
-	    entry.shaderHandle = renderState.m_context.createShader(m_shaderType);
-	    renderState.m_context.shaderSource(entry.shaderHandle, m_shaderSource);
-	    renderState.m_context.compileShader(entry.shaderHandle);
-
-	    // See if it compiled successfully
-	    if (!renderState.m_context.getShaderParameter(entry.shaderHandle,
-	        vgl.GL.COMPILE_STATUS)) {
-	      console.log('[ERROR] An error occurred compiling the shaders: ' +
-	                  renderState.m_context.getShaderInfoLog(entry.shaderHandle));
-	      console.log(m_shaderSource);
-	      renderState.m_context.deleteShader(entry.shaderHandle);
-	      return null;
-	    }
-
-	    entry.compileTimestamp.modified();
-
-	    return entry.shaderHandle;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Attach shader to the program
-	   *
-	   * @param programHandle
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.attachShader = function (renderState, programHandle) {
-	    renderState.m_context.attachShader(
-	        programHandle, this.shaderHandle(renderState));
-	  };
-	};
-
-	inherit(vgl.shader, vgl.object);
-
-	/* We can use the same shader multiple times if it is identical.  This caches
-	 * the last N shaders and will reuse them when possible.  The cache keeps the
-	 * most recently requested shader at the front.  If you are doing anything more
-	 * to a shader then creating it and setting its source once, do not use this
-	 * cache.
-	 */
-	(function () {
-	  'use strict';
-	  var m_shaderCache = [],
-	      m_shaderCacheMaxSize = 10;
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get a shader from the cache.  Create a new shader if necessary using a
-	   * specific source.
-	   *
-	   * @param type One of vgl.GL.*_SHADER
-	   * @param context the GL context for the shader.
-	   * @param {string} source the source code of the shader.
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  vgl.getCachedShader = function (type, context, source) {
-	    for (var i = 0; i < m_shaderCache.length; i += 1) {
-	      if (m_shaderCache[i].type === type &&
-	          m_shaderCache[i].context === context &&
-	          m_shaderCache[i].source === source) {
-	        if (i) {
-	          m_shaderCache.splice(0, 0, m_shaderCache.splice(i, 1)[0]);
-	        }
-	        return m_shaderCache[0].shader;
-	      }
-	    }
-	    var shader = new vgl.shader(type);
-	    shader.setShaderSource(source);
-	    m_shaderCache.unshift({
-	      type: type,
-	      context: context,
-	      source: source,
-	      shader: shader
-	    });
-	    if (m_shaderCache.length >= m_shaderCacheMaxSize) {
-	      m_shaderCache.splice(m_shaderCacheMaxSize,
-	                           m_shaderCache.length - m_shaderCacheMaxSize);
-	    }
-	    return shader;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Clear the shader cache.
-	   *
-	   * @param context the GL context to clear, or null for clear all.
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  vgl.clearCachedShaders = function (context) {
-	    for (var i = m_shaderCache.length - 1; i >= 0; i -= 1) {
-	      if (context === null || context === undefined ||
-	          m_shaderCache[i].context === context) {
-	        m_shaderCache.splice(i, 1);
-	      }
-	    }
-	  };
-	})();
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit, $*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instace of class shaderProgram
-	 *
-	 * @class
-	 * @returns {vgl.shaderProgram}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-
-	var getBaseUrl = (function () {
-	  'use strict';
-	  var baseUrl = '.';
-	  var scripts = document.getElementsByTagName('script');
-	  /* When run in certain environments, there may be no scripts loaded.  For
-	   * instance, jQuery's $.getScript won't add it to a script tag. */
-	  if (scripts.length > 0) {
-	    var index = scripts.length - 1;
-	    var vglScript = scripts[index];
-	    index = vglScript.src.lastIndexOf('/');
-	    baseUrl = vglScript.src.substring(0, index);
-	  }
-	  return function () { return baseUrl; };
-	})();
-
-	vgl.shaderProgram = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.shaderProgram)) {
-	    return new vgl.shaderProgram();
-	  }
-	  vgl.materialAttribute.call(
-	    this, vgl.materialAttributeType.ShaderProgram);
-
-	  /** @private */
-	  var m_this = this,
-	      m_programHandle = 0,
-	      m_compileTimestamp = vgl.timestamp(),
-	      m_bindTimestamp = vgl.timestamp(),
-	      m_shaders = [],
-	      m_uniforms = [],
-	      m_vertexAttributes = {},
-	      m_uniformNameToLocation = {},
-	      m_vertexAttributeNameToLocation = {};
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create a particular shader type using GLSL shader strings from a file
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.loadFromFile = function (type, sourceUrl) {
-	    var shader, success = false;
-	    $.ajax({
-	      url: sourceUrl,
-	      type: 'GET',
-	      dataType: 'text',
-	      async: false,
-	      success: function (result) {
-	        //console.log(result);
-	        shader = vgl.shader(type);
-	        shader.setShaderSource(result);
-	        m_this.addShader(shader);
-	        success = true;
-	      }
-	    });
-	    return success;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create a particular shader type using GLSL shader strings from a file
-	   * relative to VGL load URL.
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.loadShader = function (type, file) {
-	    return this.loadFromFile(type, getBaseUrl() + '/shaders/' + file);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Query uniform location in the program
-	   *
-	   * @param name
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.queryUniformLocation = function (renderState, name) {
-	    return renderState.m_context.getUniformLocation(m_programHandle, name);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Query attribute location in the program
-	   *
-	   * @param name
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.queryAttributeLocation = function (renderState, name) {
-	    return renderState.m_context.getAttribLocation(m_programHandle, name);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add a new shader to the program
-	   *
-	   * @param shader
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.addShader = function (shader) {
-	    if (m_shaders.indexOf(shader) > -1) {
-	      return false;
-	    }
-
-	    var i;
-	    for (i = m_shaders.length - 2; i >= 0; i -= 1) {
-	      if (m_shaders[i].shaderType() === shader.shaderType()) {
-	        m_shaders.splice(i, 1);
-	      }
-	    }
-
-	    m_shaders.push(shader);
-	    m_this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add a new uniform to the program
-	   *
-	   * @param uniform
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.addUniform = function (uniform) {
-	    if (m_uniforms.indexOf(uniform) > -1) {
-	      return false;
-	    }
-
-	    m_uniforms.push(uniform);
-	    m_this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Add a new vertex attribute to the program
-	   *
-	   * @param attr
-	   * @param key
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.addVertexAttribute = function (attr, key) {
-	    m_vertexAttributes[key] = attr;
-	    m_this.modified();
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get uniform location
-	   *
-	   * This method does not perform any query into the program but relies on
-	   * the fact that it depends on a call to queryUniformLocation earlier.
-	   *
-	   * @param name
-	   * @returns {number}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.uniformLocation = function (name) {
-	    return m_uniformNameToLocation[name];
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get attribute location
-	   *
-	   * This method does not perform any query into the program but relies on the
-	   * fact that it depends on a call to queryUniformLocation earlier.
-	   *
-	   * @param name
-	   * @returns {number}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.attributeLocation = function (name) {
-	    return m_vertexAttributeNameToLocation[name];
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get uniform object using name as the key
-	   *
-	   * @param name
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.uniform = function (name) {
-	    var i;
-	    for (i = 0; i < m_uniforms.length; i += 1) {
-	      if (m_uniforms[i].name() === name) {
-	        return m_uniforms[i];
-	      }
-	    }
-
-	    return null;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update all uniforms
-	   *
-	   * This method should be used directly unless required
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.updateUniforms = function (renderState) {
-	    var i;
-
-	    for (i = 0; i < m_uniforms.length; i += 1) {
-	      m_uniforms[i].callGL(renderState,
-	        m_uniformNameToLocation[m_uniforms[i].name()]);
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Link shader program
-	   *
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.link = function (renderState) {
-	    renderState.m_context.linkProgram(m_programHandle);
-
-	    // If creating the shader program failed, alert
-	    if (!renderState.m_context.getProgramParameter(m_programHandle,
-	        vgl.GL.LINK_STATUS)) {
-	      console.log('[ERROR] Unable to initialize the shader program.');
-	      return false;
-	    }
-
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Use the shader program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.use = function (renderState) {
-	    renderState.m_context.useProgram(m_programHandle);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Peform any initialization required
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this._setup = function (renderState) {
-	    if (m_programHandle === 0) {
-	      m_programHandle = renderState.m_context.createProgram();
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Peform any clean up required when the program gets deleted
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this._cleanup = function (renderState) {
-	    m_this.deleteVertexAndFragment(renderState);
-	    m_this.deleteProgram(renderState);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Delete the shader program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.deleteProgram = function (renderState) {
-	    renderState.m_context.deleteProgram(m_programHandle);
-	    m_programHandle = 0;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Delete vertex and fragment shaders
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.deleteVertexAndFragment = function (renderState) {
-	    var i;
-	    for (i = 0; i < m_shaders.length; i += 1) {
-	      renderState.m_context.detachShader(m_shaders[i].shaderHandle(renderState));
-	      renderState.m_context.deleteShader(m_shaders[i].shaderHandle(renderState));
-	      m_shaders[i].removeContext(renderState);
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compile and link a shader
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.compileAndLink = function (renderState) {
-	    var i;
-
-	    if (m_compileTimestamp.getMTime() >= this.getMTime()) {
-	      return;
-	    }
-
-	    m_this._setup(renderState);
-
-	    // Compile shaders
-	    for (i = 0; i < m_shaders.length; i += 1) {
-	      m_shaders[i].compile(renderState);
-	      m_shaders[i].attachShader(renderState, m_programHandle);
-	    }
-
-	    m_this.bindAttributes(renderState);
-
-	    // link program
-	    if (!m_this.link(renderState)) {
-	      console.log('[ERROR] Failed to link Program');
-	      m_this._cleanup(renderState);
-	    }
-
-	    m_compileTimestamp.modified();
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind the program with its shaders
-	   *
-	   * @param renderState
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.bind = function (renderState) {
-	    var i = 0;
-
-	    if (m_bindTimestamp.getMTime() < m_this.getMTime()) {
-
-	      // Compile shaders
-	      m_this.compileAndLink(renderState);
-
-	      m_this.use(renderState);
-	      m_this.bindUniforms(renderState);
-	      m_bindTimestamp.modified();
-	    } else {
-	      m_this.use(renderState);
-	    }
-
-	    // Call update callback.
-	    for (i = 0; i < m_uniforms.length; i += 1) {
-	      m_uniforms[i].update(renderState, m_this);
-	    }
-
-	    // Now update values to GL.
-	    m_this.updateUniforms(renderState);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo binding of the shader program
-	   *
-	   * @param renderState
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.undoBind = function (renderState) {
-	    // REF https://www.khronos.org/opengles/sdk/docs/man/xhtml/glUseProgram.xml
-	    // If program is 0, then the current rendering state refers to an invalid
-	    // program object, and the results of vertex and fragment shader execution
-	    // due to any glDrawArrays or glDrawElements commands are undefined
-	    renderState.m_context.useProgram(null);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind vertex data
-	   *
-	   * @param renderState
-	   * @param key
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.bindVertexData = function (renderState, key) {
-	    if (m_vertexAttributes.hasOwnProperty(key)) {
-	      m_vertexAttributes[key].bindVertexData(renderState, key);
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind vetex data
-	   *
-	   * @param renderState
-	   * @param key
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.undoBindVertexData = function (renderState, key) {
-	    if (m_vertexAttributes.hasOwnProperty(key)) {
-	      m_vertexAttributes[key].undoBindVertexData(renderState, key);
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind uniforms
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.bindUniforms = function (renderState) {
-	    var i;
-	    for (i = 0; i < m_uniforms.length; i += 1) {
-	      m_uniformNameToLocation[m_uniforms[i].name()] = this
-	          .queryUniformLocation(renderState, m_uniforms[i].name());
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind vertex attributes
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.bindAttributes = function (renderState) {
-	    var key, name;
-	    for (key in m_vertexAttributes) {
-	      if (m_vertexAttributes.hasOwnProperty(key)) {
-	        name = m_vertexAttributes[key].name();
-	        renderState.m_context.bindAttribLocation(m_programHandle, key, name);
-	        m_vertexAttributeNameToLocation[name] = key;
-	      }
-	    }
-	  };
-
-	  return m_this;
-	};
-
-	inherit(vgl.shaderProgram, vgl.materialAttribute);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global Uint8Array, vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class texture
-	 *
-	 * @class
-	 * @returns {vgl.texture}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.texture = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.texture)) {
-	    return new vgl.texture();
-	  }
-	  vgl.materialAttribute.call(
-	    this, vgl.materialAttributeType.Texture);
-
-	  this.m_width = 0;
-	  this.m_height = 0;
-	  this.m_depth = 0;
-
-	  this.m_textureHandle = null;
-	  this.m_textureUnit = 0;
-
-	  this.m_pixelFormat = vgl.GL.RGBA;
-	  this.m_pixelDataType = vgl.GL.UNSIGNED_BYTE;
-	  this.m_internalFormat = vgl.GL.RGBA;
-	  this.m_nearestPixel = false;
-
-	  this.m_image = null;
-
-	  var m_setupTimestamp = vgl.timestamp(),
-	      m_that = this;
-
-	  function activateTextureUnit(renderState) {
-	    switch (m_that.m_textureUnit) {
-	      case 0:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE0);
-	        break;
-	      case 1:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE1);
-	        break;
-	      case 2:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE2);
-	        break;
-	      case 3:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE3);
-	        break;
-	      case 4:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE4);
-	        break;
-	      case 5:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE5);
-	        break;
-	      case 6:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE6);
-	        break;
-	      case 7:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE7);
-	        break;
-	      case 8:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE8);
-	        break;
-	      case 9:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE9);
-	        break;
-	      case 10:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE10);
-	        break;
-	      case 11:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE11);
-	        break;
-	      case 12:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE12);
-	        break;
-	      case 13:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE13);
-	        break;
-	      case 14:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE14);
-	        break;
-	      case 15:
-	        renderState.m_context.activeTexture(vgl.GL.TEXTURE15);
-	        break;
-	      default:
-	        throw '[error] Texture unit ' + m_that.m_textureUnit +
-	              ' is not supported';
-	    }
-	  }
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create texture, update parameters, and bind data
-	   *
-	   * @param renderState
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setup = function (renderState) {
-	    // Activate the texture unit first
-	    activateTextureUnit(renderState);
-
-	    renderState.m_context.deleteTexture(this.m_textureHandle);
-	    this.m_textureHandle = renderState.m_context.createTexture();
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, this.m_textureHandle);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MIN_FILTER,
-	        this.m_nearestPixel ? vgl.GL.NEAREST : vgl.GL.LINEAR);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MAG_FILTER,
-	        this.m_nearestPixel ? vgl.GL.NEAREST : vgl.GL.LINEAR);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_S, vgl.GL.CLAMP_TO_EDGE);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_T, vgl.GL.CLAMP_TO_EDGE);
-
-	    if (this.m_image !== null) {
-	      renderState.m_context.pixelStorei(vgl.GL.UNPACK_ALIGNMENT, 1);
-	      renderState.m_context.pixelStorei(vgl.GL.UNPACK_FLIP_Y_WEBGL, true);
-
-	      this.updateDimensions();
-	      this.computeInternalFormatUsingImage();
-
-	      // console.log('m_internalFormat ' + this.m_internalFormat);
-	      // console.log('m_pixelFormat ' + this.m_pixelFormat);
-	      // console.log('m_pixelDataType ' + this.m_pixelDataType);
-
-	      // FOR now support only 2D textures
-	      renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D, 0, this.m_internalFormat,
-	        this.m_pixelFormat, this.m_pixelDataType, this.m_image);
-	    } else {
-	      renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D, 0, this.m_internalFormat,
-	        this.m_width, this.m_height, 0, this.m_pixelFormat, this.m_pixelDataType, null);
-	    }
-
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, null);
-	    m_setupTimestamp.modified();
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create texture and if already created use it
-	   *
-	   * @param renderState
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.bind = function (renderState) {
-	    // TODO Call setup via material setup
-	    if (this.getMTime() > m_setupTimestamp.getMTime()) {
-	      this.setup(renderState);
-	    }
-
-	    activateTextureUnit(renderState);
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, this.m_textureHandle);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Turn off the use of this texture
-	   *
-	   * @param renderState
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.undoBind = function (renderState) {
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, null);
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get image used by the texture
-	   *
-	   * @returns {vgl.image}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.image = function () {
-	    return this.m_image;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set image for the texture
-	   *
-	   * @param {vgl.image} image
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setImage = function (image) {
-	    if (image !== null) {
-	      this.m_image = image;
-	      this.updateDimensions();
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get nearest pixel flag for the texture
-	   *
-	   * @returns boolean
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.nearestPixel = function () {
-	    return this.m_nearestPixel;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set nearest pixel flag for the texture
-	   *
-	   * @param {boolean} nearest pixel flag
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setNearestPixel = function (nearest) {
-	    nearest = nearest ? true : false;
-	    if (nearest !== this.m_nearestPixel) {
-	      this.m_nearestPixel = nearest;
-	      this.modified();
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get texture unit of the texture
-	   *
-	   * @returns {number}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.textureUnit = function () {
-	    return this.m_textureUnit;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set texture unit of the texture. Default is 0.
-	   *
-	   * @param {number} unit
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setTextureUnit = function (unit) {
-	    if (this.m_textureUnit === unit) {
-	      return false;
-	    }
-
-	    this.m_textureUnit = unit;
-	    this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get width of the texture
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.width = function () {
-	    return this.m_width;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set width of the texture
-	   *
-	   * @param {number} width
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setWidth = function (width) {
-	    if (m_that.m_width !== width) {
-	      m_that.m_width = width;
-	      m_that.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get width of the texture
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.height = function () {
-	    return m_that.m_height;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set height of the texture
-	   *
-	   * @param {number} height
-	   * @returns {vgl.texture}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setHeight = function (height) {
-	    if (m_that.m_height !== height) {
-	      m_that.m_height = height;
-	      m_that.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get depth of the texture
-	   *
-	   * @returns {number}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.depth = function () {
-	    return this.m_depth;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set depth of the texture
-	   *
-	   * @param {number} depth
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setDepth = function (depth) {
-	    if (this.m_image === null) {
-	      return false;
-	    }
-
-	    this.m_depth = depth;
-	    this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get the texture handle (id) of the texture
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.textureHandle = function () {
-	    return this.m_textureHandle;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get internal format of the texture
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.internalFormat = function () {
-	    return this.m_internalFormat;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set internal format of the texture
-	   *
-	   * @param internalFormat
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setInternalFormat = function (internalFormat) {
-	    if (this.m_internalFormat !== internalFormat) {
-	      this.m_internalFormat = internalFormat;
-	      this.modified();
-	      return true;
-	    }
-
-	    return false;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get pixel format of the texture
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.pixelFormat = function () {
-	    return this.m_pixelFormat;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set pixel format of the texture
-	   *
-	   * @param pixelFormat
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setPixelFormat = function (pixelFormat) {
-	    if (this.m_image === null) {
-	      return false;
-	    }
-
-	    this.m_pixelFormat = pixelFormat;
-	    this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get pixel data type
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.pixelDataType = function () {
-	    return this.m_pixelDataType;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set pixel data type
-	   *
-	   * @param pixelDataType
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setPixelDataType = function (pixelDataType) {
-	    if (this.m_image === null) {
-	      return false;
-	    }
-
-	    this.m_pixelDataType = pixelDataType;
-
-	    this.modified();
-
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Compute internal format of the texture
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.computeInternalFormatUsingImage = function () {
-	    // Currently image does not define internal format
-	    // and hence it's pixel format is the only way to query
-	    // information on how color has been stored.
-	    // switch (this.m_image.pixelFormat()) {
-	    // case vgl.GL.RGB:
-	    // this.m_internalFormat = vgl.GL.RGB;
-	    // break;
-	    // case vgl.GL.RGBA:
-	    // this.m_internalFormat = vgl.GL.RGBA;
-	    // break;
-	    // case vgl.GL.Luminance:
-	    // this.m_internalFormat = vgl.GL.Luminance;
-	    // break;
-	    // case vgl.GL.LuminanceAlpha:
-	    // this.m_internalFormat = vgl.GL.LuminanceAlpha;
-	    // break;
-	    // // Do nothing when image pixel format is none or undefined.
-	    // default:
-	    // break;
-	    // };
-
-	    // TODO Fix this
-	    this.m_internalFormat = vgl.GL.RGBA;
-	    this.m_pixelFormat = vgl.GL.RGBA;
-	    this.m_pixelDataType = vgl.GL.UNSIGNED_BYTE;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update texture dimensions
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.updateDimensions = function () {
-	    if (this.m_image !== null) {
-	      this.m_width = this.m_image.width;
-	      this.m_height = this.m_image.height;
-	      this.m_depth = 0; // Only 2D images are supported now
-	    }
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.texture, vgl.materialAttribute);
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class lookupTable
-	 *
-	 * @class
-	 * @returns {vgl.lookupTable}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.lookupTable = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.lookupTable)) {
-	    return new vgl.lookupTable();
-	  }
-	  vgl.texture.call(this);
-
-	  var m_setupTimestamp = vgl.timestamp(),
-	      m_range = [0, 0];
-
-	  this.m_colorTable = //paraview bwr colortable
-	    [0.07514311, 0.468049805, 1, 1,
-	     0.247872569, 0.498782363, 1, 1,
-	     0.339526309, 0.528909511, 1, 1,
-	     0.409505078, 0.558608486, 1, 1,
-	     0.468487184, 0.588057293, 1, 1,
-	     0.520796675, 0.617435078, 1, 1,
-	     0.568724526, 0.646924167, 1, 1,
-	     0.613686735, 0.676713218, 1, 1,
-	     0.656658579, 0.707001303, 1, 1,
-	     0.698372844, 0.738002964, 1, 1,
-	     0.739424025, 0.769954435, 1, 1,
-	     0.780330104, 0.803121429, 1, 1,
-	     0.821573924, 0.837809045, 1, 1,
-	     0.863634967, 0.874374691, 1, 1,
-	     0.907017747, 0.913245283, 1, 1,
-	     0.936129275, 0.938743558, 0.983038586, 1,
-	     0.943467973, 0.943498599, 0.943398095, 1,
-	     0.990146732, 0.928791426, 0.917447482, 1,
-	     1, 0.88332677, 0.861943246, 1,
-	     1, 0.833985467, 0.803839606, 1,
-	     1, 0.788626485, 0.750707739, 1,
-	     1, 0.746206642, 0.701389973, 1,
-	     1, 0.70590052, 0.654994046, 1,
-	     1, 0.667019783, 0.610806959, 1,
-	     1, 0.6289553, 0.568237474, 1,
-	     1, 0.591130233, 0.526775617, 1,
-	     1, 0.552955184, 0.485962266, 1,
-	     1, 0.513776083, 0.445364274, 1,
-	     1, 0.472800903, 0.404551679, 1,
-	     1, 0.428977855, 0.363073592, 1,
-	     1, 0.380759558, 0.320428137, 1,
-	     0.961891484, 0.313155629, 0.265499262, 1,
-	     0.916482116, 0.236630659, 0.209939162, 1].map(
-	             function (x) { return x * 255; });
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create lookup table, initialize parameters, and bind data to it
-	   *
-	   * @param {vgl.renderState} renderState
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setup = function (renderState) {
-	    if (this.textureUnit() === 0) {
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE0);
-	    } else if (this.textureUnit() === 1) {
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE1);
-	    }
-
-	    renderState.m_context.deleteTexture(this.m_textureHandle);
-	    this.m_textureHandle = renderState.m_context.createTexture();
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, this.m_textureHandle);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MIN_FILTER, vgl.GL.LINEAR);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MAG_FILTER, vgl.GL.LINEAR);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_S, vgl.GL.CLAMP_TO_EDGE);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_T, vgl.GL.CLAMP_TO_EDGE);
-	    renderState.m_context.pixelStorei(vgl.GL.UNPACK_ALIGNMENT, 1);
-
-	    this.m_width = this.m_colorTable.length / 4;
-	    this.m_height = 1;
-	    this.m_depth = 0;
-	    renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D,
-	        0, vgl.GL.RGBA, this.m_width, this.m_height, this.m_depth,
-	        vgl.GL.RGBA, vgl.GL.UNSIGNED_BYTE, new Uint8Array(this.m_colorTable));
-
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, null);
-	    m_setupTimestamp.modified();
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get color table used by the lookup table
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.colorTable = function () {
-	    return this.m_colorTable;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set color table used by the lookup table
-	   *
-	   * @param colors
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setColorTable = function (colors) {
-	    if (this.m_colorTable === colors) {
-	      return false;
-	    }
-
-	    this.m_colorTable = colors;
-	    this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get scalar range
-	   *
-	   * @returns {Array}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.range = function () {
-	    return m_range;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set scalar range for the lookup table
-	   *
-	   * @param range
-	   * @returns {boolean}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.setRange = function (range) {
-	    if (m_range === range) {
-	      return false;
-	    }
-	    m_range = range;
-	    this.modified();
-	    return true;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Given a [min,max] range update the lookup table range
-	   *
-	   * @param range
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.updateRange = function (range) {
-	    if (!(range instanceof Array)) {
-	      console.log('[error] Invalid data type for range. Requires array [min,max]');
-	    }
-
-	    if (range[0] < m_range[0]) {
-	      m_range[0] = range[0];
-	      this.modified();
-	    }
-
-	    if (range[1] > m_range[1]) {
-	      m_range[1] = range[1];
-	      this.modified();
-	    }
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.lookupTable, vgl.texture);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, mat4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class uniform
-	 *
-	 * @param type
-	 * @param name
-	 * @returns {vgl.uniform} OpenGL uniform encapsulation
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.uniform = function (type, name) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.uniform)) {
-	    return new vgl.uniform(type, name);
-	  }
-
-	  this.getTypeNumberOfComponents = function (type) {
-	    switch (type) {
-	      case vgl.GL.FLOAT:
-	      case vgl.GL.INT:
-	      case vgl.GL.BOOL:
-	        return 1;
-
-	      case vgl.GL.FLOAT_VEC2:
-	      case vgl.GL.INT_VEC2:
-	      case vgl.GL.BOOL_VEC2:
-	        return 2;
-
-	      case vgl.GL.FLOAT_VEC3:
-	      case vgl.GL.INT_VEC3:
-	      case vgl.GL.BOOL_VEC3:
-	        return 3;
-
-	      case vgl.GL.FLOAT_VEC4:
-	      case vgl.GL.INT_VEC4:
-	      case vgl.GL.BOOL_VEC4:
-	        return 4;
-
-	      case vgl.GL.FLOAT_MAT3:
-	        return 9;
-
-	      case vgl.GL.FLOAT_MAT4:
-	        return 16;
-
-	      default:
-	        return 0;
-	    }
-	  };
-
-	  var m_type = type,
-	      m_name = name,
-	      m_dataArray = [];
-
-	  m_dataArray.length = this.getTypeNumberOfComponents(m_type);
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get name of the uniform
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.name = function () {
-	    return m_name;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get type of the uniform
-	   *
-	   * @returns {*}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.type = function () {
-	    return m_type;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get value of the uniform
-	   *
-	   * @returns {Array}
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.get = function () {
-	    return m_dataArray;
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set value of the uniform
-	   *
-	   * @param value
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.set = function (value) {
-	    var i = 0, lendata = m_dataArray.length;
-	    if (lendata !== 1) {
-	      for (i = 0; i < lendata; i += 1) {
-	        m_dataArray[i] = value[i];
-	      }
-	    } else {
-	      m_dataArray[0] = value;
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Call GL and pass updated values to the current shader
-	   *
-	   * @param location
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.callGL = function (renderState, location) {
-	    switch (m_type) {
-	      case vgl.GL.BOOL:
-	      case vgl.GL.INT:
-	        renderState.m_context.uniform1iv(location, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT:
-	        renderState.m_context.uniform1fv(location, m_dataArray);
-	        break;
-	      case vgl.GL.BOOL_VEC2:
-	      case vgl.GL.INT_VEC2:
-	        renderState.m_context.uniform2iv(location, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT_VEC2:
-	        renderState.m_context.uniform2fv(location, m_dataArray);
-	        break;
-	      case vgl.GL.BOOL_VEC3:
-	      case vgl.GL.INT_VEC3:
-	        renderState.m_context.uniform3iv(location, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT_VEC3:
-	        renderState.m_context.uniform3fv(location, m_dataArray);
-	        break;
-	      case vgl.GL.BOOL_VEC4:
-	      case vgl.GL.INT_VEC4:
-	        renderState.m_context.uniform4iv(location, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT_VEC4:
-	        renderState.m_context.uniform4fv(location, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT_MAT3:
-	        renderState.m_context.uniformMatrix3fv(location, vgl.GL.FALSE, m_dataArray);
-	        break;
-	      case vgl.GL.FLOAT_MAT4:
-	        renderState.m_context.uniformMatrix4fv(location, vgl.GL.FALSE, m_dataArray);
-	        break;
-	      default:
-	        break;
-	    }
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Virtual method to update the uniform
-	   *
-	   * Should be implemented by the derived class.
-	   *
-	   * @param renderState
-	   * @param program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.update = function (renderState, program) {
-	    void renderState; /* unused parameter */
-	    void program; /* unused parameter */
-	    // Should be implemented by the derived class
-	  };
-
-	  return this;
-	};
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create new instance of class modelViewUniform
-	 *
-	 * @param name
-	 * @returns {vgl.modelViewUniform}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.modelViewUniform = function (name) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.modelViewUniform)) {
-	    return new vgl.modelViewUniform(name);
-	  }
-
-	  if (!name) {
-	    name = 'modelViewMatrix';
-	  }
-
-	  vgl.uniform.call(this, vgl.GL.FLOAT_MAT4, name);
-
-	  this.set(mat4.create());
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update the uniform given a render state and shader program
-	   *
-	   * @param {vgl.renderState} renderState
-	   * @param {vgl.shaderProgram} program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.update = function (renderState, program) {
-	    void program; /* unused parameter */
-	    this.set(renderState.m_modelViewMatrix);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.modelViewUniform, vgl.uniform);
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create new instance of class modelViewOriginUniform.
-	 *
-	 * @param name
-	 * @param {array} origin a triplet of floats.
-	 * @returns {vgl.modelViewUniform}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.modelViewOriginUniform = function (name, origin) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.modelViewOriginUniform)) {
-	    return new vgl.modelViewOriginUniform(name, origin);
-	  }
-
-	  if (!name) {
-	    name = 'modelViewMatrix';
-	  }
-	  origin = origin || [0, 0, 0];
-
-	  var m_origin = [origin[0], origin[1], origin[2] || 0];
-
-	  vgl.uniform.call(this, vgl.GL.FLOAT_MAT4, name);
-
-	  this.set(mat4.create());
-
-	  /**
-	   * Change the origin used by the uniform view matrix.
-	   *
-	   * @param {array} origin a triplet of floats.
-	   */
-	  this.setOrigin = function (origin) {
-	    origin = origin || [0, 0, 0];
-	    m_origin = [origin[0], origin[1], origin[2] || 0];
-	  };
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update the uniform given a render state and shader program.  This offsets
-	   * the modelViewMatrix by the origin, and, if the model view should be
-	   * aligned, aligns it appropriately.  The alignment must be done after the
-	   * origin offset to maintain precision.
-	   *
-	   * @param {vgl.renderState} renderState
-	   * @param {vgl.shaderProgram} program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.update = function (renderState, program) {
-	    void program; /* unused parameter */
-	    var view = renderState.m_modelViewMatrix;
-	    if (renderState.m_modelViewAlignment) {
-	      /* adjust alignment before origin.  Otherwise, a changing origin can
-	       * affect the rounding choice and result in a 1 pixe jitter. */
-	      var align = renderState.m_modelViewAlignment;
-	      /* Don't modify the orignal matrix.  If we are in an environment where
-	       * you can't slice an Float32Array, switch to a regular array */
-	      view = view.slice ? view.slice() : Array.prototype.slice.call(view);
-	      /* view[12] and view[13] are the x and y offsets.  align.round is the
-	       * units-per-pixel, and align.dx and .dy are either 0 or half the size of
-	       * a unit-per-pixel.  The alignment guarantees that the texels are
-	       * aligned with screen pixels. */
-	      view[12] = Math.round(view[12] / align.roundx) * align.roundx + align.dx;
-	      view[13] = Math.round(view[13] / align.roundy) * align.roundy + align.dy;
-	    }
-	    view = mat4.translate(mat4.create(), view, m_origin);
-	    this.set(view);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.modelViewOriginUniform, vgl.uniform);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class projectionUniform
-	 *
-	 * @param name
-	 * @returns {vgl.projectionUniform}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.projectionUniform = function (name) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.projectionUniform)) {
-	    return new vgl.projectionUniform(name);
-	  }
-
-	  if (!name) {
-	    name = 'projectionMatrix';
-	  }
-
-	  vgl.uniform.call(this, vgl.GL.FLOAT_MAT4, name);
-
-	  this.set(mat4.create());
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update the uniform given a render state and shader program
-	   *
-	   * @param renderState
-	   * @param program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.update = function (renderState, program) {
-	    void program; /* unused parameter */
-	    this.set(renderState.m_projectionMatrix);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.projectionUniform, vgl.uniform);
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class floatUniform
-	 *
-	 * @param name
-	 * @param value
-	 * @returns {vgl.floatUniform}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.floatUniform = function (name, value) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.floatUniform)) {
-	    return new vgl.floatUniform(name, value);
-	  }
-
-	  if (!name) {
-	    name = 'floatUniform';
-	  }
-
-	  value = value === undefined ? 1.0 : value;
-
-	  vgl.uniform.call(this, vgl.GL.FLOAT, name);
-
-	  this.set(value);
-	};
-
-	inherit(vgl.floatUniform, vgl.uniform);
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create new instance of class normalMatrixUniform
-	 *
-	 * @param name
-	 * @returns {vgl.normalMatrixUniform}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.normalMatrixUniform = function (name) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.normalMatrixUniform)) {
-	    return new vgl.normalMatrixUniform(name);
-	  }
-
-	  if (!name) {
-	    name = 'normalMatrix';
-	  }
-
-	  vgl.uniform.call(this, vgl.GL.FLOAT_MAT4, name);
-
-	  this.set(mat4.create());
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Update the uniform given a render state and shader program
-	   *
-	   * @param {vgl.renderState} renderState
-	   * @param {vgl.shaderProgram} program
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.update = function (renderState, program) {
-	    void program; /* unused parameter */
-	    this.set(renderState.m_normalMatrix);
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.normalMatrixUniform, vgl.uniform);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Keys to identify vertex attributes
-	 *
-	 * @type {{Position: number, Normal: number, TextureCoordinate: number,
-	 *         Color: number, Scalar: number, Scalar2: number, Scalar3: number,
-	 *         Scalar4: number, Scalar5: number, Scalar6: number, Scalar7: number,
-	 *         CountAttributeIndex: number}}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.vertexAttributeKeys = {
-	  'Position' : 0,
-	  'Normal' : 1,
-	  'TextureCoordinate' : 2,
-	  'Color' : 3,
-	  'Scalar': 4,
-	  'CountAttributeIndex' : 5
-	};
-
-	vgl.vertexAttributeKeysIndexed = {
-	  'Zero' : 0,
-	  'One' : 1,
-	  'Two' : 2,
-	  'Three' : 3,
-	  'Four' : 4,
-	  'Five' : 5,
-	  'Six' : 6,
-	  'Seven' : 7,
-	  'Eight' : 8,
-	  'Nine' : 9
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of vertexAttribute
-	 *
-	 * @param {string} name
-	 * @returns {vgl.vertexAttribute}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.vertexAttribute = function (name) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.vertexAttribute)) {
-	    return new vgl.vertexAttribute(name);
-	  }
-
-	  var m_name = name;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get name of the vertex attribute
-	   *
-	   * @returns {string}
-	   */
-	  //////////////////////////////////////////////////////////////////////////////
-	  this.name = function () {
-	    return m_name;
-	  };
-
-	  //////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Bind vertex data to the given render state
-	   *
-	   * @param {vgl.renderState} renderState
-	   * @param {vgl.vertexAttributeKeys} key
-	   */
-	  //////////////////////////////////////////////////////////////////////////////
-	  this.bindVertexData = function (renderState, key) {
-	    var geometryData = renderState.m_mapper.geometryData(),
-	        sourceData = geometryData.sourceData(key),
-	        program = renderState.m_material.shaderProgram();
-
-	    renderState.m_context.vertexAttribPointer(program.attributeLocation(
-	        m_name), sourceData
-	        .attributeNumberOfComponents(key), sourceData.attributeDataType(key),
-	                           sourceData.normalized(key), sourceData
-	                               .attributeStride(key), sourceData
-	                               .attributeOffset(key));
-
-	    renderState.m_context.enableVertexAttribArray(program.attributeLocation(m_name));
-	  };
-
-	  //////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Undo bind vertex data for a given render state
-	   *
-	   * @param {vgl.renderState} renderState
-	   * @param {vgl.vertexAttributeKeys} key
-	   */
-	  //////////////////////////////////////////////////////////////////////////////
-	  this.undoBindVertexData = function (renderState, key) {
-	    key = key; /* unused parameter */
-
-	    var program = renderState.m_material.shaderProgram();
-
-	    renderState.m_context.disableVertexAttribArray(program.attributeLocation(m_name));
-	  };
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	///////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class source
-	 *
-	 * @returns {vgl.source}
-	 */
-	///////////////////////////////////////////////////////////////////////////////
-	vgl.source = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.source)) {
-	    return new vgl.source();
-	  }
-
-	  vgl.object.call(this);
-
-	  /////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Virtual function to create a source instance
-	   */
-	  /////////////////////////////////////////////////////////////////////////////
-	  this.create = function () {
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.source, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class planeSource
-	 *
-	 * @class
-	 * @returns {vgl.planeSource}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.planeSource = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.planeSource)) {
-	    return new vgl.planeSource();
-	  }
-	  vgl.source.call(this);
-
-	  var m_origin = [0.0, 0.0, 0.0],
-	      m_point1 = [1.0, 0.0, 0.0],
-	      m_point2 = [0.0, 1.0, 0.0],
-	      m_normal = [0.0, 0.0, 1.0],
-	      m_xresolution = 1,
-	      m_yresolution = 1,
-	      m_geom = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set origin of the plane
-	   *
-	   * @param x
-	   * @param y
-	   * @param z
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setOrigin = function (x, y, z) {
-	    m_origin[0] = x;
-	    m_origin[1] = y;
-	    m_origin[2] = z;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set point that defines the first axis of the plane
-	   *
-	   * @param x
-	   * @param y
-	   * @param z
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPoint1 = function (x, y, z) {
-	    m_point1[0] = x;
-	    m_point1[1] = y;
-	    m_point1[2] = z;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set point that defines the first axis of the plane
-	   *
-	   * @param x
-	   * @param y
-	   * @param z
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPoint2 = function (x, y, z) {
-	    m_point2[0] = x;
-	    m_point2[1] = y;
-	    m_point2[2] = z;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create a plane geometry given input parameters
-	   *
-	   * @returns {null}
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.create = function () {
-	    m_geom = new vgl.geometryData();
-
-	    var x = [], tc = [], v1 = [], v2 = [],
-	        pts = [], i, j, ii, numPts,
-	        posIndex = 0, normIndex = 0, colorIndex = 0, texCoordIndex = 0,
-	        positions = [], normals = [], colors = [],
-	        texCoords = [], indices = [], tristrip = null,
-	        sourcePositions = null, sourceColors = null, sourceTexCoords;
-
-	    x.length = 3;
-	    tc.length = 2;
-	    v1.length = 3;
-	    v2.length = 3;
-	    pts.length = 3;
-
-	    // Check input
-	    for (i = 0; i < 3; i += 1) {
-	      v1[i] = m_point1[i] - m_origin[i];
-	      v2[i] = m_point2[i] - m_origin[i];
-	    }
-
-	    // TODO Compute center and normal
-	    // Set things up; allocate memory
-	    numPts = (m_xresolution + 1) * (m_yresolution + 1);
-	    positions.length = 3 * numPts;
-	    normals.length = 3 * numPts;
-	    texCoords.length = 2 * numPts;
-	    indices.length = numPts;
-
-	    for (i = 0; i < (m_yresolution + 1); i += 1) {
-	      tc[1] = i / m_yresolution;
-
-	      for (j = 0; j < (m_xresolution + 1); j += 1) {
-	        tc[0] = j / m_xresolution;
-
-	        for (ii = 0; ii < 3; ii += 1) {
-	          x[ii] = m_origin[ii] + tc[0] * v1[ii] + tc[1] * v2[ii];
-	        }
-
-	        //jshint plusplus: false
-	        positions[posIndex++] = x[0];
-	        positions[posIndex++] = x[1];
-	        positions[posIndex++] = x[2];
-
-	        colors[colorIndex++] = 1.0;
-	        colors[colorIndex++] = 1.0;
-	        colors[colorIndex++] = 1.0;
-
-	        normals[normIndex++] = m_normal[0];
-	        normals[normIndex++] = m_normal[1];
-	        normals[normIndex++] = m_normal[2];
-
-	        texCoords[texCoordIndex++] = tc[0];
-	        texCoords[texCoordIndex++] = tc[1];
-	        //jshint plusplus: true
-	      }
-	    }
-
-	    /// Generate polygon connectivity
-	    for (i = 0; i < m_yresolution; i += 1) {
-	      for (j = 0; j < m_xresolution; j += 1) {
-	        pts[0] = j + i * (m_xresolution + 1);
-	        pts[1] = pts[0] + 1;
-	        pts[2] = pts[0] + m_xresolution + 2;
-	        pts[3] = pts[0] + m_xresolution + 1;
-	      }
-	    }
-
-	    for (i = 0; i < numPts; i += 1) {
-	      indices[i] = i;
-	    }
-
-	    tristrip = new vgl.triangleStrip();
-	    tristrip.setIndices(indices);
-
-	    sourcePositions = vgl.sourceDataP3fv();
-	    sourcePositions.pushBack(positions);
-
-	    sourceColors = vgl.sourceDataC3fv();
-	    sourceColors.pushBack(colors);
-
-	    sourceTexCoords = vgl.sourceDataT2fv();
-	    sourceTexCoords.pushBack(texCoords);
-
-	    m_geom.addSource(sourcePositions);
-	    m_geom.addSource(sourceColors);
-	    m_geom.addSource(sourceTexCoords);
-	    m_geom.addPrimitive(tristrip);
-
-	    return m_geom;
-	  };
-	};
-
-	inherit(vgl.planeSource, vgl.source);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class pointSource
-	 *
-	 * @class
-	 * @returns {vgl.pointSource}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.pointSource = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.pointSource)) {
-	    return new vgl.pointSource();
-	  }
-	  vgl.source.call(this);
-
-	  var m_this = this,
-	      m_positions = [],
-	      m_colors = [],
-	      m_textureCoords = [],
-	      m_size = [],
-	      m_geom = null;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get positions for the points
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getPositions = function () {
-	    return m_positions;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set positions for the source
-	   *
-	   * @param positions
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPositions = function (positions) {
-	    if (positions instanceof Array) {
-	      m_positions = positions;
-	    } else {
-	      console
-	          .log('[ERROR] Invalid data type for positions. Array is required.');
-	    }
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get colors for the points
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getColors = function () {
-	    return m_colors;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set colors for the points
-	   *
-	   * @param colors
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setColors = function (colors) {
-	    if (colors instanceof Array) {
-	      m_colors = colors;
-	    } else {
-	      console.log('[ERROR] Invalid data type for colors. Array is required.');
-	    }
-
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get size for the points
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getSize = function () {
-	    return m_size;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set colors for the points
-	   *
-	   * @param colors
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setSize = function (size) {
-	    m_size = size;
-	    this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set texture coordinates for the points
-	   *
-	   * @param texcoords
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setTextureCoordinates = function (texcoords) {
-	    if (texcoords instanceof Array) {
-	      m_textureCoords = texcoords;
-	    } else {
-	      console.log('[ERROR] Invalid data type for ' +
-	                  'texture coordinates. Array is required.');
-	    }
-	    m_this.modified();
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create a point geometry given input parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.create = function () {
-	    m_geom = new vgl.geometryData();
-
-	    if (m_positions.length % 3 !== 0) {
-	      console.log('[ERROR] Invalid length of the points array');
-	      return;
-	    }
-
-	    var numPts = m_positions.length / 3,
-	        i = 0,
-	        indices = [],
-	        pointsPrimitive,
-	        sourcePositions,
-	        sourceColors,
-	        sourceTexCoords,
-	        sourceSize;
-
-	    indices.length = numPts;
-	    for (i = 0; i < numPts; i += 1) {
-	      indices[i] = i;
-	    }
-
-	    /// Generate array of size if needed
-	    sourceSize = vgl.sourceDataDf();
-	    if (numPts !== m_size.length) {
-	      for (i = 0; i < numPts; i += 1) {
-	        sourceSize.pushBack(m_size);
-	      }
-	    } else {
-	      sourceSize.setData(m_size);
-	    }
-	    m_geom.addSource(sourceSize);
-
-	    pointsPrimitive = new vgl.points();
-	    pointsPrimitive.setIndices(indices);
-
-	    sourcePositions = vgl.sourceDataP3fv();
-	    sourcePositions.pushBack(m_positions);
-	    m_geom.addSource(sourcePositions);
-
-	    if ((m_colors.length > 0) && m_colors.length === m_positions.length) {
-	      sourceColors = vgl.sourceDataC3fv();
-	      sourceColors.pushBack(m_colors);
-	      m_geom.addSource(sourceColors);
-	    } else if ((m_colors.length > 0) && m_colors.length !== m_positions.length) {
-	      console
-	          .log('[ERROR] Number of colors are different than number of points');
-	    }
-
-	    if (m_textureCoords.length > 0 &&
-	        m_textureCoords.length === m_positions.length) {
-	      sourceTexCoords = vgl.sourceDataT2fv();
-	      sourceTexCoords.pushBack(m_textureCoords);
-	      m_geom.addSource(sourceTexCoords);
-	    } else if (m_textureCoords.length > 0 &&
-	        (m_textureCoords.length / 2) !== (m_positions.length / 3)) {
-	      console
-	          .log('[ERROR] Number of texture coordinates are different than ' +
-	               'number of points');
-	    }
-
-	    m_geom.addPrimitive(pointsPrimitive);
-
-	    return m_geom;
-	  };
-	};
-
-	inherit(vgl.pointSource, vgl.source);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class lineSource
-	 *
-	 * @class
-	 * @returns {vgl.lineSource}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.lineSource = function (positions, colors) {
-	  'use strict';
-
-	  if (!(this instanceof vgl.lineSource)) {
-	    return new vgl.lineSource();
-	  }
-	  vgl.source.call(this);
-
-	  var m_positions = positions,
-	      m_colors = colors;
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set start positions for the lines
-	   *
-	   * @param positions
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setPositions = function (positions) {
-	    if (positions instanceof Array) {
-	      m_positions = positions;
-	      this.modified();
-	      return true;
-	    }
-
-	    console
-	      .log('[ERROR] Invalid data type for positions. Array is required.');
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Set colors for the lines
-	   *
-	   * @param colors
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setColors = function (colors) {
-	    if (colors instanceof Array) {
-	      m_colors = colors;
-	      this.modified();
-	      return true;
-	    }
-
-	    console.log('[ERROR] Invalid data type for colors. Array is required.');
-	    return false;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create a point geometry given input parameters
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.create = function () {
-	    if (!m_positions) {
-	      console.log('[error] Invalid positions');
-	      return;
-	    }
-
-	    if (m_positions.length % 3 !== 0) {
-	      console.log('[error] Line source requires 3d points');
-	      return;
-	    }
-
-	    if (m_positions.length % 3 !== 0) {
-	      console.log('[ERROR] Invalid length of the points array');
-	      return;
-	    }
-
-	    var m_geom = new vgl.geometryData(),
-	        numPts = m_positions.length / 3,
-	        i,
-	        indices = [],
-	        linesPrimitive,
-	        sourcePositions,
-	        sourceColors;
-
-	    indices.length = numPts;
-
-	    for (i = 0; i < numPts; i += 1) {
-	      indices[i] = i;
-	    }
-
-	    linesPrimitive = new vgl.lines();
-	    linesPrimitive.setIndices(indices);
-
-	    sourcePositions = vgl.sourceDataP3fv();
-	    sourcePositions.pushBack(m_positions);
-	    m_geom.addSource(sourcePositions);
-
-	    if (m_colors && (m_colors.length > 0) &&
-	         m_colors.length === m_positions.length) {
-	      sourceColors = vgl.sourceDataC3fv();
-	      sourceColors.pushBack(m_colors);
-	      m_geom.addSource(sourceColors);
-	    } else if (m_colors && (m_colors.length > 0) &&
-	             m_colors.length !== m_positions.length) {
-	      console
-	        .log('[error] Number of colors are different than number of points');
-	    }
-
-	    m_geom.addPrimitive(linesPrimitive);
-
-	    return m_geom;
-	  };
-	};
-
-	inherit(vgl.lineSource, vgl.source);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global document, vgl, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class utils
-	 *
-	 * Utility class provides helper functions such as functions to create
-	 * shaders, geometry etc.
-	 *
-	 * @returns {vgl.utils}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.utils)) {
-	    return new vgl.utils();
-	  }
-	  vgl.object.call(this);
-
-	  return this;
-	};
-
-	inherit(vgl.utils, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Helper function to compute power of 2 number
-	 *
-	 * @param value
-	 * @param pow
-	 *
-	 * @returns {number}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.computePowerOfTwo = function (value, pow) {
-	  'use strict';
-	  pow = pow || 1;
-	  while (pow < value) {
-	    pow *= 2;
-	  }
-	  return pow;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of default vertex shader that uses a texture
-	 *
-	 * Helper function to create default vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createTextureVertexShader = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute vec3 textureCoord;',
-	    'uniform mediump float pointSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying highp vec3 iTextureCoord;',
-	    'void main(void)',
-	    '{',
-	    'gl_PointSize = pointSize;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    ' iTextureCoord = textureCoord;', '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of default fragment shader that uses a texture
-	 *
-	 * Helper function to create default fragment shader with sampler
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createTextureFragmentShader = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'varying highp vec3 iTextureCoord;',
-	    'uniform sampler2D sampler2d;',
-	    'uniform mediump float opacity;',
-	    'void main(void) {',
-	    'gl_FragColor = vec4(texture2D(sampler2d, vec2(iTextureCoord.s, ' +
-	                        'iTextureCoord.t)).xyz, opacity);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create variation of createTextureFragmentShader which uses texture alpha
-	 *
-	 * Helper function to create default fragment shader with sampler
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createRgbaTextureFragmentShader = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'varying highp vec3 iTextureCoord;',
-	    'uniform sampler2D sampler2d;',
-	    'uniform mediump float opacity;',
-	    'void main(void) {',
-	    '  mediump vec4 color = vec4(texture2D(sampler2d, vec2(' +
-	                                'iTextureCoord.s, iTextureCoord.t)).xyzw);',
-	    '  color.w *= opacity;',
-	    '  gl_FragColor = color;',
-	    '}'
-	  ].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of default vertex shader
-	 *
-	 * Helper function to create default vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createVertexShader = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute vec3 vertexColor;',
-	    'uniform mediump float pointSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying mediump vec3 iVertexColor;',
-	    'varying highp vec3 iTextureCoord;',
-	    'void main(void)',
-	    '{',
-	    'gl_PointSize = pointSize;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    ' iVertexColor = vertexColor;', '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of default vertex shader
-	 *
-	 * Helper function to create default vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointVertexShader = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute vec3 vertexColor;',
-	    'attribute float vertexSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying mediump vec3 iVertexColor;',
-	    'varying highp vec3 iTextureCoord;',
-	    'void main(void)',
-	    '{',
-	    'gl_PointSize =  vertexSize;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    ' iVertexColor = vertexColor;', '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of vertex shader with a solid color
-	 *
-	 * Helper function to create default vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createVertexShaderSolidColor = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'uniform mediump float pointSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'void main(void)',
-	    '{',
-	    'gl_PointSize = pointSize;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of vertex shader that passes values through
-	 * for color mapping
-	 *
-	 * Helper function to create default vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createVertexShaderColorMap = function (context, min, max) {
-	  'use strict';
-	  min = min; /* unused parameter */
-	  max = max; /* unused parameter */
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute float vertexScalar;',
-	    'uniform mediump float pointSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'uniform float lutMin;',
-	    'uniform float lutMax;',
-	    'varying mediump float iVertexScalar;',
-	    'void main(void)',
-	    '{',
-	    'gl_PointSize = pointSize;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    'iVertexScalar = (vertexScalar-lutMin)/(lutMax-lutMin);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of default fragment shader
-	 *
-	 * Helper function to create default fragment shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createFragmentShader = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = ['varying mediump vec3 iVertexColor;',
-	                              'uniform mediump float opacity;',
-	                              'void main(void) {',
-	                              'gl_FragColor = vec4(iVertexColor, opacity);',
-	                              '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a Phong vertex shader
-	 *
-	 * Helper function to create Phong vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPhongVertexShader = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute highp vec3 vertexPosition;',
-	    'attribute mediump vec3 vertexNormal;',
-	    'attribute mediump vec3 vertexColor;',
-
-	    'uniform highp mat4 projectionMatrix;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 normalMatrix;',
-
-	    'varying highp vec4 varPosition;',
-	    'varying mediump vec3 varNormal;',
-	    'varying mediump vec3 varVertexColor;',
-
-	    'void main(void)',
-	    '{',
-	    'varPosition = modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    'gl_Position = projectionMatrix * varPosition;',
-	    'varNormal = vec3(normalMatrix * vec4(vertexNormal, 0.0));',
-	    'varVertexColor = vertexColor;',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of Phong fragment shader
-	 *
-	 * Helper function to create Phong fragment shader
-	 *
-	 * NOTE: Shader assumes directional light
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPhongFragmentShader = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'uniform mediump float opacity;',
-	    'precision mediump float;',
-	    'varying vec3 varNormal;',
-	    'varying vec4 varPosition;',
-	    'varying mediump vec3 varVertexColor;',
-	    'const vec3 lightPos = vec3(0.0, 0.0,10000.0);',
-	    'const vec3 ambientColor = vec3(0.01, 0.01, 0.01);',
-	    'const vec3 specColor = vec3(0.0, 0.0, 0.0);',
-
-	    'void main() {',
-	    'vec3 normal = normalize(varNormal);',
-	    'vec3 lightDir = normalize(lightPos);',
-	    'vec3 reflectDir = -reflect(lightDir, normal);',
-	    'vec3 viewDir = normalize(-varPosition.xyz);',
-
-	    'float lambertian = max(dot(lightDir, normal), 0.0);',
-	    'vec3 color = vec3(0.0);',
-	    'if(lambertian > 0.0) {',
-	    '  color = lambertian * varVertexColor;',
-	    '}',
-	    'gl_FragColor = vec4(color * opacity, 1.0 - opacity);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of fragment shader with an assigned constant color.
-	 *
-	 * Helper function to create default fragment shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createFragmentShaderSolidColor = function (context, color) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'uniform mediump float opacity;',
-	    'void main(void) {',
-	    'gl_FragColor = vec4(' + color[0] + ',' + color[1] + ',' + color[2] + ', opacity);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of fragment shader that maps values into colors bia lookup table
-	 *
-	 * Helper function to create default fragment shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createFragmentShaderColorMap = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'varying mediump float iVertexScalar;',
-	    'uniform sampler2D sampler2d;',
-	    'uniform mediump float opacity;',
-	    'void main(void) {',
-	    'gl_FragColor = vec4(texture2D(sampler2d, vec2(iVertexScalar, ' +
-	            '0.0)).xyz, opacity);',
-	    '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of vertex shader for point sprites
-	 *
-	 * Helper function to create default point sprites vertex shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointSpritesVertexShader = function (context) {
-	  'use strict';
-	  var vertexShaderSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute vec3 vertexColor;',
-	    'uniform mediump vec2 pointSize;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'uniform float height;',
-	    'varying mediump vec3 iVertexColor;',
-	    'varying highp float iVertexScalar;',
-	    'void main(void)',
-	    '{',
-	    'mediump float realPointSize = pointSize.y;',
-	    'if (pointSize.x > pointSize.y) {',
-	    '  realPointSize = pointSize.x;}',
-	    'gl_PointSize = realPointSize ;',
-	    'iVertexScalar = vertexPosition.z;',
-	    'gl_Position = projectionMatrix * modelViewMatrix * ' +
-	            'vec4(vertexPosition.xy, height, 1.0);',
-	    ' iVertexColor = vertexColor;', '}'].join('\n');
-	  return vgl.getCachedShader(vgl.GL.VERTEX_SHADER, context,
-	                             vertexShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of fragment shader for point sprites
-	 *
-	 * Helper function to create default point sprites fragment shader
-	 *
-	 * @param context
-	 * @returns {vgl.shader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointSpritesFragmentShader = function (context) {
-	  'use strict';
-	  var fragmentShaderSource = [
-	    'varying mediump vec3 iVertexColor;',
-	    'varying highp float iVertexScalar;',
-	    'uniform sampler2D opacityLookup;',
-	    'uniform highp float lutMin;',
-	    'uniform highp float lutMax;',
-	    'uniform sampler2D scalarsToColors;',
-	    'uniform int useScalarsToColors;',
-	    'uniform int useVertexColors;',
-	    'uniform mediump vec2 pointSize;',
-	    'uniform mediump float vertexColorWeight;',
-	    'void main(void) {',
-	    'mediump vec2 realTexCoord;',
-	    'if (pointSize.x > pointSize.y) {',
-	    '  realTexCoord = vec2(1.0, pointSize.y/pointSize.x) * gl_PointCoord;',
-	    '} else {',
-	    '  realTexCoord = vec2(pointSize.x/pointSize.y, 1.0) * gl_PointCoord;',
-	    '}',
-	    'highp float texOpacity = texture2D(opacityLookup, realTexCoord).w;',
-	    'if (useScalarsToColors == 1) {',
-	    '  gl_FragColor = vec4(texture2D(scalarsToColors, vec2((' +
-	            'iVertexScalar - lutMin)/(lutMax - lutMin), 0.0)).xyz, ' +
-	            'texOpacity);',
-	    '} else if (useVertexColors == 1) {',
-	    '  gl_FragColor = vec4(iVertexColor, texOpacity);',
-	    '} else {',
-	    '  gl_FragColor = vec4(texture2D(opacityLookup, realTexCoord).xyz, texOpacity);',
-	    '}}'
-	  ].join('\n');
-	  return vgl.getCachedShader(vgl.GL.FRAGMENT_SHADER, context,
-	                             fragmentShaderSource);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of texture material
-	 *
-	 * Helper function to create a texture material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createTextureMaterial = function (isRgba, origin) {
-	  'use strict';
-	  var mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createTextureVertexShader(vgl.GL),
-	      fragmentShader = null,
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      texCoordVertAttr = new vgl.vertexAttribute('textureCoord'),
-	      pointsizeUniform = new vgl.floatUniform('pointSize', 5.0),
-	      modelViewUniform,
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	      samplerUniform = new vgl.uniform(vgl.GL.INT, 'sampler2d'),
-	      opacityUniform = null;
-	  if (origin !== undefined) {
-	    modelViewUniform = new vgl.modelViewOriginUniform('modelViewMatrix',
-	                                                      origin);
-	  } else {
-	    modelViewUniform = new vgl.modelViewUniform('modelViewMatrix');
-	  }
-
-	  samplerUniform.set(0);
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(texCoordVertAttr,
-	                          vgl.vertexAttributeKeys.TextureCoordinate);
-	  prog.addUniform(pointsizeUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-
-	  if (isRgba) {
-	    fragmentShader = vgl.utils.createRgbaTextureFragmentShader(vgl.GL);
-	  } else {
-	    fragmentShader = vgl.utils.createTextureFragmentShader(vgl.GL);
-	  }
-	  opacityUniform = new vgl.floatUniform('opacity', 1.0);
-	  prog.addUniform(opacityUniform);
-
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of geometry material
-	 *
-	 * Helper function to create geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createGeometryMaterial = function () {
-	  'use strict';
-	  var mat = new vgl.material(),
-	      prog = new vgl.shaderProgram(),
-	      pointSize = 5.0,
-	      opacity = 1.0,
-	      vertexShader = vgl.utils.createVertexShader(vgl.GL),
-	      fragmentShader = vgl.utils.createFragmentShader(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      colorVertAttr = new vgl.vertexAttribute('vertexColor'),
-	      pointsizeUniform = new vgl.floatUniform('pointSize', pointSize),
-	      opacityUniform = new vgl.floatUniform('opacity', opacity),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix');
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(colorVertAttr, vgl.vertexAttributeKeys.Color);
-	  prog.addUniform(pointsizeUniform);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of geometry material
-	 *
-	 * Helper function to create geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointGeometryMaterial = function (opacity) {
-	  'use strict';
-	  opacity = opacity === undefined ? 1.0 : opacity;
-	  var mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createPointVertexShader(vgl.GL),
-	      fragmentShader = vgl.utils.createFragmentShader(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      colorVertAttr = new vgl.vertexAttribute('vertexColor'),
-	      sizeVertAttr = new vgl.vertexAttribute('vertexSize'),
-	      opacityUniform = new vgl.floatUniform('opacity', opacity),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix');
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(colorVertAttr, vgl.vertexAttributeKeys.Color);
-	  prog.addVertexAttribute(sizeVertAttr, vgl.vertexAttributeKeys.Scalar);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of geometry material with the phong shader
-	 *
-	 * Helper function to create color phong shaded geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPhongMaterial = function () {
-	  'use strict';
-	  var mat = new vgl.material(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createPhongVertexShader(vgl.GL),
-	      fragmentShader = vgl.utils.createPhongFragmentShader(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      normalVertAttr = new vgl.vertexAttribute('vertexNormal'),
-	      colorVertAttr = new vgl.vertexAttribute('vertexColor'),
-	      opacityUniform = new vgl.floatUniform('opacity', 1.0),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      normalUniform = new vgl.normalMatrixUniform('normalMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix');
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(normalVertAttr, vgl.vertexAttributeKeys.Normal);
-	  prog.addVertexAttribute(colorVertAttr, vgl.vertexAttributeKeys.Color);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addUniform(normalUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  //mat.addAttribute(blend);
-	  mat.addAttribute(prog);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of colored geometry material
-	 *
-	 * Helper function to create color geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createColorMaterial = function () {
-	  'use strict';
-	  var mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createVertexShader(vgl.GL),
-	      fragmentShader = vgl.utils.createFragmentShader(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      texCoordVertAttr = new vgl.vertexAttribute('textureCoord'),
-	      colorVertAttr = new vgl.vertexAttribute('vertexColor'),
-	      pointsizeUniform = new vgl.floatUniform('pointSize', 5.0),
-	      opacityUniform = new vgl.floatUniform('opacity', 1.0),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix');
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(colorVertAttr, vgl.vertexAttributeKeys.Color);
-	  prog.addVertexAttribute(texCoordVertAttr,
-	                          vgl.vertexAttributeKeys.TextureCoordinate);
-	  prog.addUniform(pointsizeUniform);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of geometry material
-	 *
-	 * Helper function to create geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createColorMappedMaterial = function (lut) {
-	  'use strict';
-	  if (!lut) {
-	    lut = new vgl.lookupTable();
-	  }
-
-	  var scalarRange = lut.range(),
-	      mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createVertexShaderColorMap(
-	        vgl.GL, scalarRange[0], scalarRange[1]),
-	      fragmentShader = vgl.utils.createFragmentShaderColorMap(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      scalarVertAttr = new vgl.vertexAttribute('vertexScalar'),
-	      pointsizeUniform = new vgl.floatUniform('pointSize', 5.0),
-	      opacityUniform = new vgl.floatUniform('opacity', 1.0),
-	      lutMinUniform = new vgl.floatUniform('lutMin', scalarRange[0]),
-	      lutMaxUniform = new vgl.floatUniform('lutMax', scalarRange[1]),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	      samplerUniform = new vgl.uniform(vgl.GL.FLOAT, 'sampler2d'),
-	      lookupTable = lut;
-
-	  samplerUniform.set(0);
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(scalarVertAttr, vgl.vertexAttributeKeys.Scalar);
-	  prog.addUniform(pointsizeUniform);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(lutMinUniform);
-	  prog.addUniform(lutMaxUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-	  mat.addAttribute(lookupTable);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Update color mapped material
-	 *
-	 * @param mat
-	 * @param scalarRange
-	 * @param lut
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.updateColorMappedMaterial = function (mat, lut) {
-	  'use strict';
-	  if (!mat) {
-	    console.log('[warning] Invalid material. Nothing to update.');
-	    return;
-	  }
-
-	  if (!lut) {
-	    console.log('[warning] Invalid lookup table. Nothing to update.');
-	    return;
-	  }
-
-	  var lutMin = mat.shaderProgram().uniform('lutMin'),
-	      lutMax = mat.shaderProgram().uniform('lutMax');
-
-	  lutMin.set(lut.range()[0]);
-	  lutMax.set(lut.range()[1]);
-
-	  // This will replace the existing lookup table
-	  mat.setAttribute(lut);
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of solid color material
-	 *
-	 * Helper function to create geometry material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createSolidColorMaterial = function (color) {
-	  'use strict';
-	  if (!color) {
-	    color = [1.0, 1.0, 1.0];
-	  }
-
-	  var mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createVertexShaderSolidColor(vgl.GL),
-	      fragmentShader = vgl.utils.createFragmentShaderSolidColor(vgl.GL, color),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      pointsizeUniform = new vgl.floatUniform('pointSize', 5.0),
-	      opacityUniform = new vgl.floatUniform('opacity', 1.0),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix');
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addUniform(pointsizeUniform);
-	  prog.addUniform(opacityUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of point sprites material
-	 *
-	 * Helper function to create point sprites material
-	 *
-	 * @returns {vgl.material}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointSpritesMaterial = function (image, lut) {
-	  'use strict';
-	  var scalarRange = lut === undefined ? [0, 1] : lut.range(),
-	      mat = new vgl.material(),
-	      blend = new vgl.blend(),
-	      prog = new vgl.shaderProgram(),
-	      vertexShader = vgl.utils.createPointSpritesVertexShader(vgl.GL),
-	      fragmentShader = vgl.utils.createPointSpritesFragmentShader(vgl.GL),
-	      posVertAttr = new vgl.vertexAttribute('vertexPosition'),
-	      colorVertAttr = new vgl.vertexAttribute('vertexColor'),
-	      heightUniform = new vgl.floatUniform('height', 0.0),
-	      vertexColorWeightUniform =
-	        new vgl.floatUniform('vertexColorWeight', 0.0),
-	      lutMinUniform = new vgl.floatUniform('lutMin', scalarRange[0]),
-	      lutMaxUniform = new vgl.floatUniform('lutMax', scalarRange[1]),
-	      modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	      projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	      samplerUniform = new vgl.uniform(vgl.GL.INT, 'opacityLookup'),
-	      scalarsToColors = new vgl.uniform(vgl.GL.INT, 'scalarsToColors'),
-	      useScalarsToColors = new vgl.uniform(vgl.GL.INT, 'useScalarsToColors'),
-	      useVertexColors = new vgl.uniform(vgl.GL.INT, 'useVertexColors'),
-	      pointSize = new vgl.uniform(vgl.GL.FLOAT_VEC2, 'pointSize'),
-	      texture = new vgl.texture();
-
-	  samplerUniform.set(0);
-	  scalarsToColors.set(1);
-	  useScalarsToColors.set(0);
-	  useVertexColors.set(0);
-	  pointSize.set([1.0, 1.0]);
-
-	  prog.addVertexAttribute(posVertAttr, vgl.vertexAttributeKeys.Position);
-	  prog.addVertexAttribute(colorVertAttr, vgl.vertexAttributeKeys.Color);
-	  prog.addUniform(heightUniform);
-	  prog.addUniform(vertexColorWeightUniform);
-	  prog.addUniform(modelViewUniform);
-	  prog.addUniform(projectionUniform);
-	  prog.addUniform(samplerUniform);
-	  prog.addUniform(useVertexColors);
-	  prog.addUniform(useScalarsToColors);
-	  prog.addUniform(pointSize);
-	  prog.addShader(fragmentShader);
-	  prog.addShader(vertexShader);
-	  mat.addAttribute(prog);
-	  mat.addAttribute(blend);
-
-	  if (lut) {
-	    prog.addUniform(scalarsToColors);
-	    useScalarsToColors.set(1);
-	    prog.addUniform(lutMinUniform);
-	    prog.addUniform(lutMaxUniform);
-	    lut.setTextureUnit(1);
-	    mat.addAttribute(lut);
-	  }
-
-	  texture.setImage(image);
-	  texture.setTextureUnit(0);
-	  mat.addAttribute(texture);
-	  return mat;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of an actor that contains a plane geometry
-	 *
-	 * Function to create a plane node This method will create a plane actor
-	 * with texture coordinates, eventually normal, and plane material.
-	 *
-	 * @returns {vgl.actor}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPlane = function (originX, originY, originZ,
-	                                 point1X, point1Y, point1Z,
-	                                 point2X, point2Y, point2Z) {
-	  'use strict';
-	  var mapper = new vgl.mapper(),
-	      planeSource = new vgl.planeSource(),
-	      mat = vgl.utils.createGeometryMaterial(),
-	      actor = new vgl.actor();
-
-	  planeSource.setOrigin(originX, originY, originZ);
-	  planeSource.setPoint1(point1X, point1Y, point1Z);
-	  planeSource.setPoint2(point2X, point2Y, point2Z);
-
-	  mapper.setGeometryData(planeSource.create());
-	  actor.setMapper(mapper);
-	  actor.setMaterial(mat);
-
-	  return actor;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of an actor that contains a texture plane geometry
-	 *
-	 * Helper function to create a plane textured node This method will create
-	 * a plane actor with texture coordinates, eventually normal, and plane
-	 * material.
-	 *
-	 * @returns {vgl.actor}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createTexturePlane = function (originX, originY, originZ,
-	                                        point1X, point1Y, point1Z,
-	                                        point2X, point2Y, point2Z,
-	                                        isRgba) {
-	  'use strict';
-	  var mapper = new vgl.mapper(),
-	      planeSource = new vgl.planeSource(),
-	      mat = vgl.utils.createTextureMaterial(isRgba,
-	                                            [originX, originY, originZ]),
-	      actor = new vgl.actor();
-
-	  planeSource.setPoint1(point1X - originX, point1Y - originY, point1Z - originZ);
-	  planeSource.setPoint2(point2X - originX, point2Y - originY, point2Z - originZ);
-	  mapper.setGeometryData(planeSource.create());
-
-	  actor.setMapper(mapper);
-	  actor.setMaterial(mat);
-
-	  return actor;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of an actor that contains points
-	 *
-	 * Helper function to create a point node This method will create a point
-	 * actor with texture coordinates, eventually normal, and plane material.
-	 *
-	 * @returns {vgl.actor}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPoints = function (positions, size, colors, texcoords, opacity) {
-	  'use strict';
-	  if (!positions) {
-	    console.log('[ERROR] Cannot create points without positions');
-	    return null;
-	  }
-
-	  opacity = opacity === undefined ? 1.0 : opacity;
-	  var mapper = new vgl.mapper(),
-	      pointSource = new vgl.pointSource(),
-	      mat = vgl.utils.createPointGeometryMaterial(opacity),
-	      actor = new vgl.actor();
-
-	  pointSource.setPositions(positions);
-	  if (colors) {
-	    pointSource.setColors(colors);
-	  }
-
-	  if (texcoords) {
-	    pointSource.setTextureCoordinates(texcoords);
-	  }
-
-	  if (size) {
-	    pointSource.setSize(size);
-	  } else {
-	    pointSource.setSize(1.0);
-	  }
-
-	  mapper.setGeometryData(pointSource.create());
-	  actor.setMapper(mapper);
-	  actor.setMaterial(mat);
-
-	  return actor;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of an actor that contains point sprites
-	 *
-	 * Helper function to create a point sprites node This method will create
-	 * a point sprites actor with texture coordinates, normals, and a point sprites
-	 * material.
-	 *
-	 * @returns {vgl.actor}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createPointSprites = function (image, positions, colors,
-	                                              texcoords) {
-	  'use strict';
-	  if (!image) {
-	    console.log('[ERROR] Point sprites requires an image');
-	    return null;
-	  }
-
-	  if (!positions) {
-	    console.log('[ERROR] Cannot create points without positions');
-	    return null;
-	  }
-
-	  var mapper = new vgl.mapper(),
-	      pointSource = new vgl.pointSource(),
-	      mat = vgl.utils.createPointSpritesMaterial(image),
-	      actor = new vgl.actor();
-
-	  pointSource.setPositions(positions);
-	  if (colors) {
-	    pointSource.setColors(colors);
-	  }
-
-	  if (texcoords) {
-	    pointSource.setTextureCoordinates(texcoords);
-	  }
-
-	  mapper.setGeometryData(pointSource.create());
-	  actor.setMapper(mapper);
-	  actor.setMaterial(mat);
-
-	  return actor;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create lines given positions, colors, and desired length
-	 *
-	 * @param positions
-	 * @param colors
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createLines = function (positions, colors) {
-	  'use strict';
-	  if (!positions) {
-	    console.log('[ERROR] Cannot create points without positions');
-	    return null;
-	  }
-
-	  var mapper = new vgl.mapper(),
-	      lineSource = new vgl.lineSource(),
-	      mat = vgl.utils.createGeometryMaterial(),
-	      actor = new vgl.actor();
-
-	  lineSource.setPositions(positions);
-	  if (colors) {
-	    lineSource.setColors(colors);
-	  }
-
-	  mapper.setGeometryData(lineSource.create());
-	  actor.setMapper(mapper);
-	  actor.setMaterial(mat);
-
-	  return actor;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create color legend
-	 *
-	 * @param lookupTable
-	 * @param width
-	 * @param height
-	 * @param origin
-	 * @param divs
-	 * @returns {Array}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.createColorLegend = function (varname, lookupTable, origin,
-	                                             width, height, countMajor,
-	                                             countMinor) {
-	  'use strict';
-
-	  if (!lookupTable) {
-	    console.log('[error] Invalid lookup table');
-	    return [];
-	  }
-
-	  //////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Create labels for the legend
-	   *
-	   * @param ticks
-	   * @param range
-	   * @param divs
-	   */
-	  //////////////////////////////////////////////////////////////////////////////
-	  function createLabels(varname, positions, range) {
-	    if (!positions) {
-	      console.log('[error] Create labels requires positions (x,y,z) array');
-	      return;
-	    }
-
-	    if (positions.length % 3 !== 0) {
-	      console.log('[error] Create labels require positions array contain 3d points');
-	      return;
-	    }
-
-	    if (!range) {
-	      console.log('[error] Create labels requires Valid range');
-	      return;
-	    }
-
-	    var actor = null,
-	        size = vgl.utils.computePowerOfTwo(48),
-	        index = 0,
-	        actors = [],
-	        origin = [],
-	        pt1 = [],
-	        pt2 = [],
-	        delta = (positions[6] - positions[0]),
-	        axisLabelOffset = 4, i;
-
-	    origin.length = 3;
-	    pt1.length = 3;
-	    pt2.length = 3;
-
-	    // For now just create labels for end points
-	    for (i = 0; i < 2; i += 1) {
-	      index = i * (positions.length - 3);
-
-	      origin[0] = positions[index] - delta;
-	      origin[1] = positions[index + 1] - 2 * delta;
-	      origin[2] = positions[index + 2];
-
-	      pt1[0] = positions[index] + delta;
-	      pt1[1] = origin[1];
-	      pt1[2] = origin[2];
-
-	      pt2[0] = origin[0];
-	      pt2[1] = positions[1];
-	      pt2[2] = origin[2];
-
-	      actor = vgl.utils.createTexturePlane(
-	        origin[0], origin[1], origin[2],
-	        pt1[0], pt1[1], pt1[2],
-	        pt2[0], pt2[1], pt2[2], true);
-
-	      actor.setReferenceFrame(vgl.boundingObject.ReferenceFrame.Absolute);
-	      actor.material().setBinNumber(vgl.material.RenderBin.Overlay);
-	      actor.material().addAttribute(vgl.utils.create2DTexture(
-	        range[i].toFixed(2).toString(), 12, null));
-	      actors.push(actor);
-	    }
-
-	    // Create axis label
-	    origin[0] = (positions[0] + positions[positions.length - 3] - size) * 0.5;
-	    origin[1] = positions[1] + axisLabelOffset;
-	    origin[2] = positions[2];
-
-	    pt1[0] = origin[0] + size;
-	    pt1[1] = origin[1];
-	    pt1[2] = origin[2];
-
-	    pt2[0] = origin[0];
-	    pt2[1] = origin[1] + size;
-	    pt2[2] = origin[2];
-
-	    actor = vgl.utils.createTexturePlane(
-	      origin[0], origin[1], origin[2],
-	      pt1[0], pt1[1], pt1[2],
-	      pt2[0], pt2[1], pt2[2], true);
-	    actor.setReferenceFrame(vgl.boundingObject.ReferenceFrame.Absolute);
-	    actor.material().setBinNumber(vgl.material.RenderBin.Overlay);
-	    actor.material().addAttribute(vgl.utils.create2DTexture(
-	      varname, 24, null));
-	    actors.push(actor);
-
-	    return actors;
-	  }
-
-	  //////////////////////////////////////////////////////////////////////////////
-	  // TODO Currently we assume that the ticks are laid on x-axis
-	  // and this is on a 2D plane (ignoring Z axis. For now lets
-	  // not draw minor ticks.
-	  /**
-	   * Create ticks and labels
-	   *
-	   * @param originX
-	   * @param originY
-	   * @param originZ
-	   * @param pt1X
-	   * @param pt1Y
-	   * @param pt1Z
-	   * @param pt2X
-	   * @param pt2Y
-	   * @param pt2Z
-	   * @param divs
-	   * @param heightMajor
-	   * @param heightMinor
-	   * @returns {Array} Returns array of vgl.actor
-	   */
-	  //////////////////////////////////////////////////////////////////////////////
-	  function createTicksAndLabels(varname, lut,
-	                        originX, originY, originZ,
-	                        pt1X, pt1Y, pt1Z,
-	                        pt2X, pt2Y, pt2Z,
-	                        countMajor, countMinor,
-	                        heightMajor, heightMinor) {
-	    heightMinor = heightMinor; /* unused parameter */
-	    var width = pt2X - pt1X,
-	        index = null,
-	        delta = width / countMajor,
-	        positions = [],
-	        actors = [];
-
-	    for (index = 0; index <= countMajor; index += 1) {
-	      positions.push(pt1X + delta * index);
-	      positions.push(pt1Y);
-	      positions.push(pt1Z);
-
-	      positions.push(pt1X + delta * index);
-	      positions.push(pt1Y + heightMajor);
-	      positions.push(pt1Z);
-	    }
-
-	    // TODO: Fix this
-	    //actor = vgl.utils.createLines(positions, null);
-	    //actor.setReferenceFrame(vgl.boundingObject.ReferenceFrame.Absolute);
-	    //actor.material().setBinNumber(vgl.material.RenderBin.Overlay);
-	    //actors.push(actor);
-
-	    actors = actors.concat(createLabels(varname, positions, lut.range()));
-	    return actors;
-	  }
-
-	  // TODO Currently we create only one type of legend
-	  var pt1X = origin[0] + width,
-	      pt1Y = origin[1],
-	      pt1Z = 0.0,
-	      pt2X = origin[0],
-	      pt2Y = origin[1] + height,
-	      pt2Z = 0.0,
-	      actors = [],
-	      actor = null,
-	      mat = null,
-	      group = vgl.groupNode();
-
-	  actor = vgl.utils.createTexturePlane(
-	    origin[0], origin[1], origin[2],
-	    pt1X, pt1Y, pt1Z,
-	    pt2X, pt2Y, pt2Z, true
-	  );
-
-	  mat = actor.material();
-	  mat.addAttribute(lookupTable);
-	  actor.setMaterial(mat);
-	  group.addChild(actor);
-	  actor.material().setBinNumber(vgl.material.RenderBin.Overlay);
-	  actor.setReferenceFrame(vgl.boundingObject.ReferenceFrame.Absolute);
-	  actors.push(actor);
-	  actors = actors.concat(createTicksAndLabels(
-	                          varname,
-	                          lookupTable,
-	                          origin[0], origin[1], origin[1],
-	                          pt2X, pt1Y, pt1Z,
-	                          pt1X, pt1Y, pt1Z,
-	                          countMajor, countMinor, 5, 3));
-
-	  // TODO This needs to change so that we can return a group node
-	  // which should get appended to the scene graph
-	  return actors;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create 2D texture by rendering text using canvas2D context
-	 *
-	 * @param textToWrite
-	 * @param textSize
-	 * @param color
-	 * @returns {vgl.texture}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.utils.create2DTexture = function (textToWrite, textSize,
-	  color, font, alignment, baseline, bold) {
-	  'use strict';
-
-	  var canvas = document.getElementById('textRendering'),
-	      ctx = null,
-	      texture = vgl.texture();
-
-	  font = font || 'sans-serif';
-	  alignment = alignment || 'center';
-	  baseline = baseline || 'bottom';
-
-	  if (typeof bold === 'undefined') {
-	    bold = true;
-	  }
-
-	  if (!canvas) {
-	    canvas = document.createElement('canvas');
-	  }
-	  ctx = canvas.getContext('2d');
-
-	  canvas.setAttribute('id', 'textRendering');
-	  canvas.style.display = 'none';
-
-	  // Make width and height equal so that we get pretty looking text.
-	  canvas.height = vgl.utils.computePowerOfTwo(8 * textSize);
-	  canvas.width = canvas.height;
-
-	  ctx.fillStyle = 'rgba(0, 0, 0, 0)';
-	  ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
-
-	  // This determines the text colour, it can take a hex value or rgba value
-	  // (e.g. rgba(255,0,0,0.5))
-	  ctx.fillStyle = 'rgba(200, 85, 10, 1.0)';
-
-	  // This determines the alignment of text, e.g. left, center, right
-	  ctx.textAlign = alignment;
-
-	  // This determines the baseline of the text, e.g. top, middle, bottom
-	  ctx.textBaseline = baseline;
-
-	  // This determines the size of the text and the font family used
-	  ctx.font = 4 * textSize + 'px ' + font;
-	  if (bold) {
-	    ctx.font = 'bold ' + ctx.font;
-	  }
-
-	  ctx.fillText(textToWrite, canvas.width / 2, canvas.height / 2, canvas.width);
-
-	  texture.setImage(canvas);
-	  texture.updateDimensions();
-
-	  return texture;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, vec4, inherit*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class picker
-	 *
-	 * @class vgl.picker
-	 * @returns {vgl.picker}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.picker = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.picker)) {
-	    return new vgl.picker();
-	  }
-	  vgl.object.call(this);
-
-	  /** @private */
-	  var m_actors = [];
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Get actors intersected
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getActors = function () {
-	    return m_actors;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Perform pick operation
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.pick = function (selectionX, selectionY, renderer) {
-	    // Check if variables are acceptable
-	    if (selectionX === undefined) {
-	      return 0;
-	    }
-	    if (selectionY === undefined) {
-	      return 0;
-	    }
-	    if (renderer === undefined) {
-	      return 0;
-	    }
-
-	    // Clean list of actors intersected previously
-	    m_actors = [];
-
-	    //
-	    var camera = renderer.camera(),
-	        width = renderer.width(),
-	        height = renderer.height(),
-	        fpoint = camera.focalPoint(),
-	        focusWorldPt = vec4.fromValues(fpoint[0], fpoint[1], fpoint[2], 1.0),
-	        focusDisplayPt = renderer.worldToDisplay(
-	          focusWorldPt, camera.viewMatrix(),
-	        camera.projectionMatrix(), width, height),
-	        displayPt = vec4.fromValues(selectionX,
-	                      selectionY, focusDisplayPt[2], 1.0),
-	        // Convert selection point into world coordinates
-	        worldPt = renderer.displayToWorld(displayPt, camera.viewMatrix(),
-	                    camera.projectionMatrix(), width, height),
-	        cameraPos = camera.position(), ray = [], actors, count, i, bb,
-	        tmin, tmax, tymin, tymax, tzmin, tzmax, actor;
-
-	    for (i = 0; i < 3; i += 1) {
-	      ray[i] = worldPt[i] - cameraPos[i];
-	    }
-
-	    // Go through all actors and check if intersects
-	    actors = renderer.sceneRoot().children();
-	    count = 0;
-
-	    for (i = 0; i < actors.length; i += 1) {
-	      actor = actors[i];
-	      if (actor.visible() === true) {
-	        bb = actor.bounds();
-	        // Ray-aabb intersection - Smits' method
-	        if (ray[0] >= 0) {
-	          tmin = (bb[0] - cameraPos[0]) / ray[0];
-	          tmax = (bb[1] - cameraPos[0]) / ray[0];
-	        } else {
-	          tmin = (bb[1] - cameraPos[0]) / ray[0];
-	          tmax = (bb[0] - cameraPos[0]) / ray[0];
-	        }
-	        if (ray[1] >= 0) {
-	          tymin = (bb[2] - cameraPos[1]) / ray[1];
-	          tymax = (bb[3] - cameraPos[1]) / ray[1];
-	        } else {
-	          tymin = (bb[3] - cameraPos[1]) / ray[1];
-	          tymax = (bb[2] - cameraPos[1]) / ray[1];
-	        }
-	        if ((tmin > tymax) || (tymin > tmax)) {
-	          //jscs:disable disallowKeywords
-	          continue;
-	          //jscs:enable disallowKeywords
-	        }
-
-	        if (tymin > tmin) {
-	          tmin = tymin;
-	        }
-	        if (tymax < tmax) {
-	          tmax = tymax;
-	        }
-	        if (ray[2] >= 0) {
-	          tzmin = (bb[4] - cameraPos[2]) / ray[2];
-	          tzmax = (bb[5] - cameraPos[2]) / ray[2];
-	        } else {
-	          tzmin = (bb[5] - cameraPos[2]) / ray[2];
-	          tzmax = (bb[4] - cameraPos[2]) / ray[2];
-	        }
-	        if ((tmin > tzmax) || (tzmin > tmax)) {
-	          //jscs:disable disallowKeywords
-	          continue;
-	          //jscs:enable disallowKeywords
-	        }
-	        if (tzmin > tmin) {
-	          tmin = tzmin;
-	        }
-	        if (tzmax < tmax) {
-	          tmax = tzmax;
-	        }
-
-	        m_actors[count] = actor;
-	        count += 1;
-	      }
-	    }
-	    return count;
-	  };
-
-	  return this;
-	};
-
-	inherit(vgl.picker, vgl.object);
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, $*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of shapefile reader
-	 *
-	 * This contains code that reads a shapefile and produces vgl geometries
-	 *
-	 * @class
-	 * @returns {vgl.shapefileReader}
-	 */
-	//////////////////////////////////////////////////////////////////////////////
-	vgl.shapefileReader = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.shapefileReader)) {
-	    return new vgl.shapefileReader();
-	  }
-
-	  var m_that = this;
-	  var SHP_NULL = 0;
-	  var SHP_POINT = 1;
-	  var SHP_POLYGON = 5;
-	  var SHP_POLYLINE = 3;
-
-	  this.int8 = function (data, offset) {
-	    return data.charCodeAt(offset);
-	  };
-
-	  /*jshint bitwise: false */
-	  this.bint32 = function (data, offset) {
-	    return (
-	      ((data.charCodeAt(offset) & 0xff) << 24) +
-	        ((data.charCodeAt(offset + 1) & 0xff) << 16) +
-	        ((data.charCodeAt(offset + 2) & 0xff) << 8) +
-	        (data.charCodeAt(offset + 3) & 0xff)
-	    );
-	  };
-
-	  this.lint32 = function (data, offset) {
-	    return (
-	      ((data.charCodeAt(offset + 3) & 0xff) << 24) +
-	        ((data.charCodeAt(offset + 2) & 0xff) << 16) +
-	        ((data.charCodeAt(offset + 1) & 0xff) << 8) +
-	        (data.charCodeAt(offset) & 0xff)
-	    );
-	  };
-
-	  this.bint16 = function (data, offset) {
-	    return (
-	      ((data.charCodeAt(offset) & 0xff) << 8) +
-	        (data.charCodeAt(offset + 1) & 0xff)
-	    );
-	  };
-
-	  this.lint16 = function (data, offset) {
-	    return (
-	      ((data.charCodeAt(offset + 1) & 0xff) << 8) +
-	        (data.charCodeAt(offset) & 0xff)
-	    );
-	  };
-
-	  this.ldbl64 = function (data, offset) {
-	    var b0 = data.charCodeAt(offset) & 0xff;
-	    var b1 = data.charCodeAt(offset + 1) & 0xff;
-	    var b2 = data.charCodeAt(offset + 2) & 0xff;
-	    var b3 = data.charCodeAt(offset + 3) & 0xff;
-	    var b4 = data.charCodeAt(offset + 4) & 0xff;
-	    var b5 = data.charCodeAt(offset + 5) & 0xff;
-	    var b6 = data.charCodeAt(offset + 6) & 0xff;
-	    var b7 = data.charCodeAt(offset + 7) & 0xff;
-
-	    var sign = 1 - 2 * (b7 >> 7);
-	    var exp = (((b7 & 0x7f) << 4) + ((b6 & 0xf0) >> 4)) - 1023;
-	    //var frac = (b6 & 0x0f) * Math.pow (2, -4) + b5 * Math.pow (2, -12) + b4 *
-	    // Math.pow (2, -20) + b3 * Math.pow (2, -28) + b2 * Math.pow (2, -36) + b1 *
-	    // Math.pow (2, -44) + b0 * Math.pow (2, -52);
-
-	    //return sign * (1 + frac) * Math.pow (2, exp);
-	    var frac = (b6 & 0x0f) * Math.pow(2, 48) + b5 * Math.pow(2, 40) + b4 *
-	                 Math.pow(2, 32) + b3 * Math.pow(2, 24) + b2 *
-	                 Math.pow(2, 16) + b1 * Math.pow(2, 8) + b0;
-
-	    return sign * (1 + frac * Math.pow(2, -52)) * Math.pow(2, exp);
-	  };
-
-	  this.lfloat32 = function (data, offset) {
-	    var b0 = data.charCodeAt(offset) & 0xff;
-	    var b1 = data.charCodeAt(offset + 1) & 0xff;
-	    var b2 = data.charCodeAt(offset + 2) & 0xff;
-	    var b3 = data.charCodeAt(offset + 3) & 0xff;
-
-	    var sign = 1 - 2 * (b3 >> 7);
-	    var exp = (((b3 & 0x7f) << 1) + ((b2 & 0xfe) >> 7)) - 127;
-	    var frac = (b2 & 0x7f) * Math.pow(2, 16) + b1 * Math.pow(2, 8) + b0;
-
-	    return sign * (1 + frac * Math.pow(2, -23)) * Math.pow(2, exp);
-	  };
-	  /*jshint bitwise: true */
-
-	  this.str = function (data, offset, length) {
-	    var chars = [];
-	    var index = offset;
-	    while (index < offset + length) {
-	      var c = data[index];
-	      if (c.charCodeAt(0) !== 0) {
-	        chars.push(c);
-	      } else {
-	        break;
-	      }
-	      index += 1;
-	    }
-	    return chars.join('');
-	  };
-
-	  this.readHeader = function (data) {
-	    var code = this.bint32(data, 0);
-	    var length = this.bint32(data, 24);
-	    var version = this.lint32(data, 28);
-	    var shapetype = this.lint32(data, 32);
-
-	    /*
-	    var xmin = this.ldbl64(data, 36);
-	    var ymin = this.ldbl64(data, 44);
-	    var xmax = this.ldbl64(data, 52);
-	    var ymax = this.ldbl64(data, 60);
-	    */
-	    return {
-	      code: code,
-	      length: length,
-	      version: version,
-	      shapetype: shapetype
-	      // bounds: new Box (vect (xmin, ymin), vect (xmax, ymax))
-	    };
-	  };
-
-	  this.loadShx = function (data) {
-	    var indices = [];
-	    var appendIndex = function (offset) {
-	      indices.push(2 * m_that.bint32(data, offset));
-	      return offset + 8;
-	    };
-	    var offset = 100;
-	    while (offset < data.length) {
-	      offset = appendIndex(offset);
-	    }
-	    return indices;
-	  };
-
-	  this.Shapefile = function (options) {
-	    var path = options.path;
-	    $.ajax({
-	      url: path + '.shx',
-	      mimeType: 'text/plain; charset=x-user-defined',
-	      success: function (data) {
-	        var indices = this.loadShx(data);
-	        $.ajax({
-	          url: path + '.shp',
-	          mimeType: 'text/plain; charset=x-user-defined',
-	          success: function (data) {
-	            $.ajax({
-	              url: path + '.dbf',
-	              mimeType: 'text/plain; charset=x-user-defined',
-	              success: function (dbf_data) {
-	                var layer = this.loadShp(data, dbf_data, indices, options);
-	                options.success(layer);
-	              }
-	            });
-	          }
-	        });
-	      }
-	    });
-	  };
-
-	  this.localShapefile = function (options) {
-	    var shxFile = options.shx;
-	    var shpFile = options.shp;
-	    var dbfFile = options.dbf;
-	    var shxReader = new FileReader();
-	    shxReader.onloadend = function () {
-	      var indices = m_that.loadShx(shxReader.result);
-	      var shpReader = new FileReader();
-
-	      shpReader.onloadend = function () {
-	        var shpData = shpReader.result;
-
-	        var dbfReader = new FileReader();
-	        dbfReader.onloadend = function () {
-	          var dbfData = dbfReader.result;
-	          var layer = m_that.loadShp(shpData, dbfData, indices, options);
-	          options.success(layer);
-	        };
-	        dbfReader.readAsBinaryString(dbfFile);
-	      };
-	      shpReader.readAsBinaryString(shpFile);
-	    };
-	    shxReader.readAsBinaryString(shxFile);
-	  };
-
-	  this.loadDBF = function (data) {
-	    var readHeader = function (offset) {
-	      var name = m_that.str(data, offset, 10);
-	      var type = m_that.str(data, offset + 11, 1);
-	      var length = m_that.int8(data, offset + 16);
-	      return {
-	        name: name,
-	        type: type,
-	        length: length
-	      };
-	    };
-
-	    // Level of the dBASE file
-	    var level = m_that.int8(data, 0);
-	    if (level === 4) {
-	      throw 'Level 7 dBASE not supported';
-	    }
-
-	    // Date of last update
-	    /*
-	    var year = m_that.int8(data, 1);
-	    var month = m_that.int8(data, 2);
-	    var day = m_that.int8(data, 3);
-	    */
-
-	    var num_entries = m_that.lint32(data, 4);
-	    var header_size = m_that.lint16(data, 8);
-	    var record_size = m_that.lint16(data, 10);
-
-	    var FIELDS_START = 32;
-	    var HEADER_LENGTH = 32;
-
-	    var header_offset = FIELDS_START;
-	    var headers = [];
-	    while (header_offset < header_size - 1) {
-	      headers.push(readHeader(header_offset));
-	      header_offset += HEADER_LENGTH;
-	    }
-
-	    var records = [];
-	    var record_offset = header_size;
-	    while (record_offset < header_size + num_entries * record_size) {
-	      var declare = m_that.str(data, record_offset, 1);
-	      if (declare === '*') {
-	        // Record size in the header include the size of the delete indicator
-	        record_offset += record_size;
-	      } else {
-	        // Move offset to the start of the actual data
-	        record_offset += 1;
-	        var record = {};
-	        for (var i = 0; i < headers.length; i += 1) {
-	          var header = headers[i];
-	          var value;
-	          if (header.type === 'C') {
-	            value = m_that.str(data, record_offset, header.length).trim();
-	          } else if (header.type === 'N') {
-	            value = parseFloat(m_that.str(data, record_offset, header.length));
-	          }
-	          record_offset += header.length;
-	          record[header.name] = value;
-	        }
-	        records.push(record);
-	      }
-	    }
-	    return records;
-	  };
-
-	  this.loadShp = function (data, dbf_data, indices, options) {
-	    options = options; /* unused parameter */
-	    var features = [];
-	    var readRing = function (offset, start, end) {
-	      var ring = [];
-	      for (var i = end - 1; i >= start; i -= 1) {
-	        var x = m_that.ldbl64(data, offset + 16 * i);
-	        var y = m_that.ldbl64(data, offset + 16 * i + 8);
-	        ring.push([x, y]);
-	      }
-	      //if (ring.length <= 3)
-	      // return [];
-	      return ring;
-	    };
-
-	    var readRecord = function (offset) {
-	      // var index = m_that.bint32(data, offset);
-	      // var record_length = m_that.bint32(data, offset + 4);
-	      var record_offset = offset + 8;
-	      var geom_type = m_that.lint32(data, record_offset);
-	      var num_parts, num_points, parts_start, points_start, i,
-	          start, end, ring, rings;
-
-	      if (geom_type === SHP_NULL) {
-	        console.log('NULL Shape');
-	        //return offset + 12;
-	      } else if (geom_type === SHP_POINT) {
-	        var x = m_that.ldbl64(data, record_offset + 4);
-	        var y = m_that.ldbl64(data, record_offset + 12);
-
-	        features.push({
-	          type: 'Point',
-	          attr: {},
-	          geom: [[x, y]]
-	        });
-	      } else if (geom_type === SHP_POLYGON) {
-	        num_parts = m_that.lint32(data, record_offset + 36);
-	        num_points = m_that.lint32(data, record_offset + 40);
-
-	        parts_start = offset + 52;
-	        points_start = offset + 52 + 4 * num_parts;
-
-	        rings = [];
-	        for (i = 0; i < num_parts; i += 1) {
-	          start = m_that.lint32(data, parts_start + i * 4);
-	          if (i + 1 < num_parts) {
-	            end = m_that.lint32(data, parts_start + (i + 1) * 4);
-	          } else {
-	            end = num_points;
-	          }
-	          ring = readRing(points_start, start, end);
-	          rings.push(ring);
-	        }
-	        features.push({
-	          type: 'Polygon',
-	          attr: {},
-	          geom: [rings]
-	        });
-	      } else if (geom_type === SHP_POLYLINE) {
-	        num_parts = m_that.lint32(data, record_offset + 36);
-	        num_points = m_that.lint32(data, record_offset + 40);
-
-	        parts_start = offset + 52;
-	        points_start = offset + 52 + 4 * num_parts;
-
-	        rings = [];
-	        for (i = 0; i < num_parts; i += 1) {
-	          start = m_that.lint32(data, parts_start + i * 4);
-	          if (i + 1 < num_parts) {
-	            end = m_that.lint32(data, parts_start + (i + 1) * 4);
-	          } else {
-	            end = num_points;
-	          }
-	          ring = readRing(points_start, start, end);
-	          rings.push(ring);
-	        }
-	        features.push({
-	          type: 'Polyline',
-	          attr: {},
-	          geom: [rings]
-	        });
-	      } else {
-	        throw 'Not Implemented: ' + geom_type;
-	      }
-	      //return offset + 2 * record_length + SHP_HEADER_LEN;
-	    };
-
-	    var attr = this.loadDBF(dbf_data), i;
-
-	    //var offset = 100;
-	    //while (offset < length * 2) {
-	    // offset = readRecord (offset);
-	    //}
-	    for (i = 0; i < indices.length; i += 1) {
-	      var offset = indices[i];
-	      readRecord(offset);
-	    }
-
-	    var layer = []; //new Layer ();
-
-	    for (i = 0; i < features.length; i += 1) {
-	      var feature = features[i];
-	      feature.attr = attr[i];
-	      layer.push(feature);
-	    }
-	    return layer;
-	  };
-
-	  return this;
-	};
-
-	//////////////////////////////////////////////////////////////////////////////
-	/**
-	 * @module vgl
-	 */
-
-	/*global vgl, mat4, unescape, Float32Array, Int8Array, Uint16Array*/
-	//////////////////////////////////////////////////////////////////////////////
-
-	//////////////////////////////////////////////////////////////////////////////
-	//
-	// vbgModule.vtkReader class
-	// This contains code that unpack a json base64 encoded vtkdataset,
-	// such as those produced by ParaView's webGL exporter (where much
-	// of the code originated from) and convert it to VGL representation.
-	//
-	//////////////////////////////////////////////////////////////////////////////
-
-	vgl.vtkReader = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.vtkReader)) {
-	    return new vgl.vtkReader();
-	  }
-
-	  var m_base64Chars =
-	    ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-	     'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-	     'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
-	     'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
-	     '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'],
-	      m_reverseBase64Chars = [],
-	      m_vtkRenderedList = {},
-	      m_vtkObjectCount = 0,
-	      m_vtkScene = null,
-	      m_node = null,
-	      END_OF_INPUT = -1,
-	      m_base64Str = '',
-	      m_base64Count = 0,
-	      m_pos = 0,
-	      m_viewer = null,
-	      i = 0;
-
-	  //initialize the array here if not already done.
-	  if (m_reverseBase64Chars.length === 0) {
-	    for (i = 0; i < m_base64Chars.length; i += 1) {
-	      m_reverseBase64Chars[m_base64Chars[i]] = i;
-	    }
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * ntos
-	   *
-	   * @param n
-	   * @returns unescaped n
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.ntos = function (n) {
-	    var unN;
-
-	    unN = n.toString(16);
-	    if (unN.length === 1) {
-	      unN = '0' + unN;
-	    }
-	    unN = '%' + unN;
-
-	    return unescape(unN);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * readReverseBase64
-	   *
-	   * @returns
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readReverseBase64 = function () {
-	    var nextCharacter;
-
-	    if (!m_base64Str) {
-	      return END_OF_INPUT;
-	    }
-
-	    while (true) {
-	      if (m_base64Count >= m_base64Str.length) {
-	        return END_OF_INPUT;
-	      }
-	      nextCharacter = m_base64Str.charAt(m_base64Count);
-	      m_base64Count += 1;
-
-	      if (m_reverseBase64Chars[nextCharacter]) {
-	        return m_reverseBase64Chars[nextCharacter];
-	      }
-	      if (nextCharacter === 'A') {
-	        return 0;
-	      }
-	    }
-
-	    return END_OF_INPUT;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * decode64
-	   *
-	   * @param str
-	   * @returns result
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.decode64 = function (str) {
-	    var result = '',
-	        inBuffer = new Array(4),
-	        done = false;
-
-	    m_base64Str = str;
-	    m_base64Count = 0;
-
-	    while (!done &&
-	           (inBuffer[0] = this.readReverseBase64()) !== END_OF_INPUT &&
-	           (inBuffer[1] = this.readReverseBase64()) !== END_OF_INPUT) {
-	      inBuffer[2] = this.readReverseBase64();
-	      inBuffer[3] = this.readReverseBase64();
-	      /*jshint bitwise: false */
-	      result += this.ntos((((inBuffer[0] << 2) & 0xff) | inBuffer[1] >> 4));
-	      if (inBuffer[2] !== END_OF_INPUT) {
-	        result += this.ntos((((inBuffer[1] << 4) & 0xff) | inBuffer[2] >> 2));
-	        if (inBuffer[3] !== END_OF_INPUT) {
-	          result += this.ntos((((inBuffer[2] << 6) & 0xff) | inBuffer[3]));
-	        } else {
-	          done = true;
-	        }
-	      } else {
-	        done = true;
-	      }
-	      /*jshint bitwise: true */
-	    }
-
-	    return result;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * readNumber
-	   *
-	   * @param ss
-	   * @returns v
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readNumber = function (ss) {
-	    //jshint plusplus: false, bitwise: false
-	    var v = ((ss[m_pos++]) +
-	             (ss[m_pos++] << 8) +
-	             (ss[m_pos++] << 16) +
-	             (ss[m_pos++] << 24));
-	    //jshint plusplus: true, bitwise: true
-	    return v;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * readF3Array
-	   *
-	   * @param numberOfPoints
-	   * @param ss
-	   * @returns points
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readF3Array = function (numberOfPoints, ss) {
-	    var size = numberOfPoints * 4 * 3, test = new Int8Array(size),
-	        points = null, i;
-
-	    for (i = 0; i < size; i += 1) {
-	      test[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    points = new Float32Array(test.buffer);
-
-	    return points;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * readColorArray
-	   *
-	   * @param numberOfPoints
-	   * @param ss
-	   * @param vglcolors
-	   * @returns points
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.readColorArray = function (numberOfPoints, ss, vglcolors) {
-	    var i, idx = 0, tmp = new Array(numberOfPoints * 3);
-	    //jshint plusplus: false
-	    for (i = 0; i < numberOfPoints; i += 1) {
-	      tmp[idx++] = ss[m_pos++] / 255.0;
-	      tmp[idx++] = ss[m_pos++] / 255.0;
-	      tmp[idx++] = ss[m_pos++] / 255.0;
-	      m_pos++;
-	    }
-	    //jshint plusplus: true
-	    vglcolors.insert(tmp);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parseObject
-	   *
-	   * @param buffer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parseObject = function (vtkObject) {
-	    var geom = new vgl.geometryData(), mapper = vgl.mapper(), ss = [],
-	        type = null, data = null, size, matrix = null, material = null,
-	        actor, colorMapData, shaderProg, opacityUniform, lookupTable,
-	        colorTable, windowSize, width, height, position;
-
-	    //dehexlify
-	    //data = this.decode64(vtkObject.data);
-	    data = atob(vtkObject.data);
-	    //jshint bitwise: false
-	    for (i = 0; i < data.length; i += 1) {
-	      ss[i] = data.charCodeAt(i) & 0xff;
-	    }
-	    //jshint bitwise: true
-
-	    //Determine the Object type
-	    m_pos = 0;
-	    size = this.readNumber(ss);
-	    type = String.fromCharCode(ss[m_pos]);
-	    m_pos += 1;
-	    geom.setName(type);
-
-	    // Lines
-	    if (type === 'L') {
-	      matrix = this.parseLineData(geom, ss);
-	      material = vgl.utils.createGeometryMaterial();
-	    // Mesh
-	    } else if (type === 'M') {
-	      matrix = this.parseMeshData(geom, ss);
-	      material = vgl.utils.createPhongMaterial();
-	    // Points
-	    } else if (type === 'P') {
-	      matrix = this.parsePointData(geom, ss);
-	      material = vgl.utils.createGeometryMaterial();
-	    // ColorMap
-	    } else if (type === 'C') {
-	      colorMapData = this.parseColorMapData(geom, ss, size);
-	      colorTable = [];
-
-	      for (i = 0; i < colorMapData.colors.length; i += 1) {
-	        colorTable.push(colorMapData.colors[i][1]);
-	        colorTable.push(colorMapData.colors[i][2]);
-	        colorTable.push(colorMapData.colors[i][3]);
-	        colorTable.push(colorMapData.colors[i][0] * 255);
-	      }
-
-	      lookupTable = new vgl.lookupTable();
-	      lookupTable.setColorTable(colorTable);
-
-	      windowSize = m_viewer.renderWindow().windowSize();
-	      width = colorMapData.size[0] * windowSize[0];
-	      height = colorMapData.size[1] * windowSize[1];
-
-	      position = [colorMapData.position[0] * windowSize[0],
-	                  (1 - colorMapData.position[1]) * windowSize[1], 0];
-	      position[1] = position[1] - height;
-
-	      // For now hardcode the height
-	      height = 30;
-
-	      return vgl.utils.createColorLegend(colorMapData.title,
-	          lookupTable, position, width, height, 3, 0);
-	    // Unknown
-	    } else {
-	      console.log('Ignoring unrecognized encoded data type ' + type);
-	    }
-
-	    mapper.setGeometryData(geom);
-
-	    //default opacity === solid. If were transparent, set it lower.
-	    if (vtkObject.hasTransparency) {
-	      shaderProg = material.shaderProgram();
-	      opacityUniform = shaderProg.uniform('opacity');
-	      console.log('opacity ', vtkObject.opacity);
-	      opacityUniform.set(vtkObject.opacity);
-	      material.setBinNumber(1000);
-	    }
-
-	    actor = vgl.actor();
-	    actor.setMapper(mapper);
-	    actor.setMaterial(material);
-	    actor.setMatrix(mat4.transpose(mat4.create(), matrix));
-
-	    return [actor];
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parseLineData
-	   *
-	   * @param geom, ss
-	   * @returns matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parseLineData = function (geom, ss) {
-	    var vglpoints = null, vglcolors = null, vgllines = null,
-	        matrix = mat4.create(),
-	        numberOfIndex, numberOfPoints, points,
-	        temp, index, size, m, i,
-	        p = null, idx = 0;
-
-	    numberOfPoints = this.readNumber(ss);
-	    p = new Array(numberOfPoints * 3);
-
-	    //Getting Points
-	    vglpoints = new vgl.sourceDataP3fv();
-	    points = this.readF3Array(numberOfPoints, ss);
-
-	    //jshint plusplus: false
-	    for (i = 0; i < numberOfPoints; i += 1) {
-	      p[idx++] = points[i * 3];
-	      p[idx++] = points[i * 3 + 1];
-	      p[idx++] = points[i * 3 + 2];
-	    }
-	    //jshint plusplus: true
-	    vglpoints.insert(p);
-	    geom.addSource(vglpoints);
-
-	    //Getting Colors
-	    vglcolors = new vgl.sourceDataC3fv();
-	    this.readColorArray(numberOfPoints, ss, vglcolors);
-	    geom.addSource(vglcolors);
-
-	    //Getting connectivity
-	    vgllines = new vgl.lines();
-	    geom.addPrimitive(vgllines);
-	    numberOfIndex = this.readNumber(ss);
-
-	    temp = new Int8Array(numberOfIndex * 2);
-	    for (i = 0; i < numberOfIndex * 2; i += 1) {
-	      temp[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    index = new Uint16Array(temp.buffer);
-	    vgllines.setIndices(index);
-	    vgllines.setPrimitiveType(vgl.GL.LINES);
-
-	    //Getting Matrix
-	    size = 16 * 4;
-	    temp = new Int8Array(size);
-	    for (i = 0; i < size; i += 1) {
-	      temp[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    m = new Float32Array(temp.buffer);
-	    mat4.copy(matrix, m);
-
-	    return matrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parseMeshData
-	   *
-	   * @param geom, ss
-	   * @returns matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parseMeshData = function (geom, ss) {
-	    var vglpoints = null, vglcolors = null,
-	        normals = null, matrix = mat4.create(),
-	        vgltriangles = null, numberOfIndex, numberOfPoints,
-	        points, temp, index, size, m, i,
-	        pn = null, idx = 0;
-
-	    numberOfPoints = this.readNumber(ss);
-	    pn = new Array(numberOfPoints * 6);
-	    //Getting Points
-	    vglpoints = new vgl.sourceDataP3N3f();
-	    points = this.readF3Array(numberOfPoints, ss);
-
-	    //Getting Normals
-	    normals = this.readF3Array(numberOfPoints, ss);
-	    //jshint plusplus: false
-	    for (i = 0; i < numberOfPoints; i += 1) {
-	      pn[idx++] = points[i * 3];
-	      pn[idx++] = points[i * 3 + 1];
-	      pn[idx++] = points[i * 3 + 2];
-	      pn[idx++] = normals[i * 3];
-	      pn[idx++] = normals[i * 3 + 1];
-	      pn[idx++] = normals[i * 3 + 2];
-	    }
-	    //jshint plusplus: true
-	    vglpoints.insert(pn);
-	    geom.addSource(vglpoints);
-
-	    //Getting Colors
-	    vglcolors = new vgl.sourceDataC3fv();
-	    this.readColorArray(numberOfPoints, ss, vglcolors);
-	    geom.addSource(vglcolors);
-
-	    //Getting connectivity
-	    temp = [];
-	    vgltriangles = new vgl.triangles();
-	    numberOfIndex = this.readNumber(ss);
-
-	    temp = new Int8Array(numberOfIndex * 2);
-	    for (i = 0; i < numberOfIndex * 2; i += 1) {
-	      temp[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    index = new Uint16Array(temp.buffer);
-	    vgltriangles.setIndices(index);
-	    geom.addPrimitive(vgltriangles);
-
-	    //Getting Matrix
-	    size = 16 * 4;
-	    temp = new Int8Array(size);
-	    for (i = 0; i < size; i += 1) {
-	      temp[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    m = new Float32Array(temp.buffer);
-	    mat4.copy(matrix, m);
-
-	    return matrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parsePointData
-	   *
-	   * @param geom, ss
-	   * @returns matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parsePointData = function (geom, ss) {
-	    var numberOfPoints, points, indices, temp, size,
-	        matrix = mat4.create(), vglpoints = null,
-	        vglcolors = null, vglVertexes = null, m,
-	        p = null, idx = 0;
-
-	    numberOfPoints = this.readNumber(ss);
-	    p = new Array(numberOfPoints * 3);
-
-	    //Getting Points and creating 1:1 connectivity
-	    vglpoints = new vgl.sourceDataP3fv();
-	    points = this.readF3Array(numberOfPoints, ss);
-
-	    indices = new Uint16Array(numberOfPoints);
-
-	    //jshint plusplus: false
-	    for (i = 0; i < numberOfPoints; i += 1) {
-	      indices[i] = i;
-	      p[idx++] = points[i * 3];
-	      p[idx++] = points[i * 3 + 1];
-	      p[idx++] = points[i * 3 + 2];
-	    }
-	    //jshint plusplus: true
-	    vglpoints.insert(p);
-	    geom.addSource(vglpoints);
-
-	    //Getting Colors
-	    vglcolors = new vgl.sourceDataC3fv();
-	    this.readColorArray(numberOfPoints, ss, vglcolors);
-	    geom.addSource(vglcolors);
-
-	    //Getting connectivity
-	    vglVertexes = new vgl.points();
-	    vglVertexes.setIndices(indices);
-	    geom.addPrimitive(vglVertexes);
-
-	    //Getting matrix
-	    size = 16 * 4;
-	    temp = new Int8Array(size);
-	    for (i = 0; i < size; i += 1) {
-	      temp[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-
-	    m = new Float32Array(temp.buffer);
-	    mat4.copy(matrix, m);
-
-	    return matrix;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parseColorMapData
-	   *
-	   * @param geom, ss
-	   * @returns matrix
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parseColorMapData = function (geom, ss, numColors) {
-
-	    var tmpArray, size, xrgb, i, c, obj = {};
-
-	    // Set number of colors
-	    obj.numOfColors = numColors;
-
-	    // Getting Position
-	    size = 8;
-	    tmpArray = new Int8Array(size);
-	    for (i = 0; i < size; i += 1) {
-	      tmpArray[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-	    obj.position = new Float32Array(tmpArray.buffer);
-
-	    // Getting Size
-	    size = 8;
-	    tmpArray = new Int8Array(size);
-	    for (i = 0; i < size; i += 1) {
-	      tmpArray[i] = ss[m_pos];
-	      m_pos += 1;
-	    }
-	    obj.size = new Float32Array(tmpArray.buffer);
-
-	    //Getting Colors
-	    obj.colors = [];
-	    //jshint plusplus: false
-	    for (c = 0; c < obj.numOfColors; c += 1) {
-	      tmpArray = new Int8Array(4);
-	      for (i = 0; i < 4; i += 1) {
-	        tmpArray[i] = ss[m_pos];
-	        m_pos += 1;
-	      }
-
-	      xrgb = [
-	        new Float32Array(tmpArray.buffer)[0],
-	        ss[m_pos++],
-	        ss[m_pos++],
-	        ss[m_pos++]
-	      ];
-	      obj.colors[c] = xrgb;
-	    }
-
-	    obj.orientation = ss[m_pos++];
-	    obj.numOfLabels = ss[m_pos++];
-	    obj.title = '';
-	    while (m_pos < ss.length) {
-	      obj.title += String.fromCharCode(ss[m_pos++]);
-	    }
-	    //jshint plusplus: true
-
-	    return obj;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * parseSceneMetadata
-	   *
-	   * @param data
-	   * @returns renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.parseSceneMetadata = function (renderer, layer) {
-
-	    var sceneRenderer = m_vtkScene.Renderers[layer],
-	        camera = renderer.camera(), bgc, localWidth, localHeight;
-
-	    localWidth = (sceneRenderer.size[0] - sceneRenderer.origin[0]) * m_node.width;
-	    localHeight = (sceneRenderer.size[1] - sceneRenderer.origin[1]) * m_node.height;
-	    renderer.resize(localWidth, localHeight);
-
-	    /// We are setting the center to the focal point because of
-	    /// a possible paraview web bug. The center of rotation isn't
-	    /// getting updated correctly on resetCamera.
-	    camera.setCenterOfRotation(
-	      [sceneRenderer.LookAt[1], sceneRenderer.LookAt[2],
-	       sceneRenderer.LookAt[3]]);
-	    camera.setViewAngleDegrees(sceneRenderer.LookAt[0]);
-	    camera.setPosition(
-	      sceneRenderer.LookAt[7], sceneRenderer.LookAt[8],
-	      sceneRenderer.LookAt[9]);
-	    camera.setFocalPoint(
-	      sceneRenderer.LookAt[1], sceneRenderer.LookAt[2],
-	      sceneRenderer.LookAt[3]);
-	    camera.setViewUpDirection(
-	      sceneRenderer.LookAt[4], sceneRenderer.LookAt[5],
-	      sceneRenderer.LookAt[6]);
-
-	    if (layer === 0) {
-	      bgc = sceneRenderer.Background1;
-	      renderer.setBackgroundColor(bgc[0], bgc[1], bgc[2], 1);
-	    } else {
-	      renderer.setResizable(false);
-	    }
-	    renderer.setLayer(layer);
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * initScene
-	   *
-	   * @returns viewer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.initScene = function () {
-	    var renderer, layer;
-
-	    if (m_vtkScene === null) {
-	      return m_viewer;
-	    }
-	    for (layer = m_vtkScene.Renderers.length - 1; layer >= 0; layer -= 1) {
-
-	      renderer = this.getRenderer(layer);
-	      this.parseSceneMetadata(renderer, layer);
-	    }
-
-	    return m_viewer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * createViewer - Creates a viewer object.
-	   *
-	   * @param
-	   *
-	   * @returns viewer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.createViewer = function (node) {
-	    var interactorStyle;
-
-	    if (m_viewer === null) {
-	      m_node = node;
-	      m_viewer = vgl.viewer(node);
-	      m_viewer.init();
-	      m_viewer.renderWindow().removeRenderer(m_viewer.renderWindow().activeRenderer());
-	      m_viewer.renderWindow().addRenderer(new vgl.depthPeelRenderer());
-	      m_vtkRenderedList[0] = m_viewer.renderWindow().activeRenderer();
-	      m_viewer.renderWindow().resize(node.width, node.height);
-	      interactorStyle = vgl.pvwInteractorStyle();
-	      m_viewer.setInteractorStyle(interactorStyle);
-	    }
-
-	    return m_viewer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * deleteViewer - Deletes the viewer object associated with the reader.
-	   *
-	   * @returns void
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.deleteViewer = function () {
-	    m_vtkRenderedList = {};
-	    m_viewer = null;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * updateCanvas -
-	   *
-	   * @param
-	   *
-	   * @returns void
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.updateCanvas = function (node) {
-	    m_node = node;
-	    m_viewer.renderWindow().resize(node.width, node.height);
-
-	    return m_viewer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * clearVtkObjectData - Clear out the list of VTK geometry data.
-	   *
-	   * @param void
-	   * @returns void
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.numObjects = function () {
-	    return m_vtkObjectCount;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * getRenderer - Gets (or creates) the renderer for a layer.
-	   *
-	   * @param layer
-	   * @returns renderer
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.getRenderer = function (layer) {
-	    var renderer;
-
-	    renderer = m_vtkRenderedList[layer];
-	    if (renderer === null || typeof renderer === 'undefined') {
-	      renderer = new vgl.renderer();
-	      renderer.setResetScene(false);
-	      renderer.setResetClippingRange(false);
-	      m_viewer.renderWindow().addRenderer(renderer);
-
-	      if (layer !== 0) {
-	        renderer.camera().setClearMask(vgl.GL.DepthBufferBit);
-	      }
-
-	      m_vtkRenderedList[layer] = renderer;
-	    }
-
-	    return renderer;
-	  };
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * setVtkScene - Set the VTK scene data for camera initialization.
-	   *
-	   * @param scene
-	   * @returns void
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.setVtkScene = function (scene) {
-	    m_vtkScene = scene;
-	  };
-
-	  return this;
-	};
-
-	vgl.DataBuffers = function (initialSize) {
-	  'use strict';
-	  if (!(this instanceof vgl.DataBuffers)) {
-	    return new vgl.DataBuffers(initialSize);
-	  }
-
-	  var data = {};
-
-	  var size;
-	  if (!initialSize && initialSize !== 0) {
-	    size = 256;
-	  } else {
-	    size = initialSize;
-	  }
-
-	  var current = 0;
-
-	  var copyArray = function (dst, src, start, count) {
-	    if (!dst) {
-	      throw 'No destination';
-	    }
-	    if (!start) {
-	      start = 0;
-	    }
-	    if (!count) {
-	      count = src.length;
-	    }
-	    for (var i = 0; i < count; i += 1) {
-	      dst[start + i] = src[i];
-	    }
-	  };
-
-	  var resize = function (min_expand) {
-	    var new_size = size;
-	    /* If the array would increase substantially, don't just double its
-	     * size.  If the array has been increasing gradually, double it as the
-	     * expectation is that it will increase again. */
-	    if (new_size * 2 < min_expand) {
-	      new_size = min_expand;
-	    }
-	    while (new_size < min_expand) {
-	      new_size *= 2;
-	    }
-	    size = new_size;
-	    for (var name in data) {
-	      if (data.hasOwnProperty(name)) {
-	        var newArray = new Float32Array(new_size * data[name].len);
-	        var oldArray = data[name].array;
-	        copyArray(newArray, oldArray);
-	        data[name].array = newArray;
-	        data[name].dirty = true;
-	      }
-	    }
-	  };
-
-	  /**
-	   * Allocate a buffer with a name and a specific number of components per
-	   * entry.  If a buffer with the specified name already exists, it will be
-	   * overwritten.
-	   *
-	   * @param name: the name of the buffer to create or replace.
-	   * @param len: number of components per entry.  Most be a positive integer.
-	   */
-	  this.create = function (name, len) {
-	    if (!len || len < 0) {
-	      throw 'Length of buffer must be a positive integer';
-	    }
-	    var array = new Float32Array(size * len);
-	    data[name] = {
-	      array: array,
-	      len: len,
-	      dirty: false
-	    };
-	    return data[name].array;
-	  };
-
-	  this.alloc = function (num) {
-	    if ((current + num) >= size) {
-	      resize(current + num);
-	    }
-	    var start = current;
-	    current += num;
-	    return start;
-	  };
-
-	  this.get = function (name) {
-	    return data[name].array;
-	  };
-
-	  this.write = function (name, array, start, count) {
-	    if (start + count > size) {
-	      throw 'Write would exceed buffer size';
-	    }
-	    copyArray(data[name].array, array, start * data[name].len, count * data[name].len);
-	    data[name].dirty = true;
-	  };
-
-	  this.repeat = function (name, elem, start, count) {
-	    if (start + count > size) {
-	      throw 'Repeat would exceed buffer size';
-	    }
-	    for (var i = 0; i < count; i += 1) {
-	      copyArray(data[name].array, elem,
-	                 (start + i) * data[name].len, data[name].len);
-	    }
-	    data[name].dirty = true;
-	  };
-
-	  this.count = function () {
-	    return current;
-	  };
-
-	  this.data = function (name) {
-	    return data[name].array;
-	  };
-	};
-
-	////////////////////////////////////////////////////////////////////////////
-	/**
-	 * Create a new instance of class renderer *
-	 *
-	 * @returns {vgl.renderer}
-	 */
-	////////////////////////////////////////////////////////////////////////////
-
-	vgl.depthPeelRenderer = function () {
-	  'use strict';
-
-	  if (!(this instanceof vgl.depthPeelRenderer)) {
-	    return new vgl.depthPeelRenderer();
-	  }
-	  vgl.renderer.call(this);
-
-	  var m_this = this, fbo = [], texID = [], depthTexID = [],
-	      colorBlenderTexID, colorBlenderFBOID, setupTime = vgl.timestamp(),
-	      fpMaterial = vgl.material(), blMaterial = vgl.material(),
-	      fiMaterial = vgl.material(), frontPeelShader = null, blendShader = null,
-	      finalShader, NUM_PASSES = 6, m_quad = null, fpwidth, fpheight, blwidth, blheight,
-	      fiwidth, fiheight, fpopacity, fibackgroundColor;
-
-	  function drawFullScreenQuad(renderState, material) {
-	    m_quad.setMaterial(material);
-
-	    renderState.m_mapper = m_quad.mapper();
-	    renderState.m_material = material;
-
-	    renderState.m_material.bind(renderState);
-	    renderState.m_mapper.render(renderState);
-	    renderState.m_material.undoBind(renderState);
-
-	    m_quad.setMaterial(null);
-	  }
-
-	  function initScreenQuad(renderState, width, height) {
-	    console.log(width);
-	    console.log(height);
-	    m_quad = vgl.utils.createPlane(0.0, 0.0, 0.0,
-	                                   1.0, 0.0, 0.0,
-	                                   0.0, 1.0, 0.0);
-	  }
-
-	  function initShaders(renderState) {
-	    var fpmv, fpproj, fpvertex, fpcolor, fpdepthTex, fpnormal, fpnr,
-	        blvertex, blColorSamp, blPrevDepthSamp, blCurrDepthSamp,
-	        fivertex, fitempTex;
-
-	    // Load the front to back peeling shader
-	    fpvertex = new vgl.vertexAttribute('vertexPosition');
-	    fpnormal = new vgl.vertexAttribute('vertexNormal');
-	    fpcolor = new vgl.vertexAttribute('vertexColor');
-	    fpmv = new vgl.modelViewUniform('modelViewMatrix');
-	    fpnr = new vgl.modelViewUniform('normalMatrix');
-	    fpproj = new vgl.projectionUniform('projectionMatrix');
-	    fpwidth = new vgl.floatUniform('width');
-	    fpheight = new vgl.floatUniform('height');
-	    fpopacity = new vgl.floatUniform('opacity', 1.0);
-	    fpdepthTex = new vgl.uniform(vgl.GL.INT, 'depthTexture');
-	    fpdepthTex.set(0);
-
-	    frontPeelShader = new vgl.shaderProgram();
-	    frontPeelShader.loadShader(vgl.GL.VERTEX_SHADER, 'front_peel.vert');
-	    frontPeelShader.loadShader(vgl.GL.FRAGMENT_SHADER, 'front_peel.frag');
-
-	    frontPeelShader.addUniform(fpmv);
-	    frontPeelShader.addUniform(fpnr);
-	    frontPeelShader.addUniform(fpproj);
-	    frontPeelShader.addUniform(fpdepthTex);
-	    frontPeelShader.addUniform(fpwidth);
-	    frontPeelShader.addUniform(fpheight);
-	    frontPeelShader.addUniform(fpopacity);
-	    frontPeelShader.addVertexAttribute(fpvertex, vgl.vertexAttributeKeys.Position);
-	    frontPeelShader.addVertexAttribute(fpnormal, vgl.vertexAttributeKeys.Normal);
-	    frontPeelShader.addVertexAttribute(fpcolor, vgl.vertexAttributeKeys.Color);
-
-	    // Compile and link the shader
-	    frontPeelShader.compileAndLink(renderState);
-
-	    fpMaterial.addAttribute(frontPeelShader);
-
-	    //     //add attributes and uniforms
-	    //     frontPeelShader.AddAttribute('vVertex');
-	    //     frontPeelShader.AddUniform('MVP');
-	    //     frontPeelShader.AddUniform('vColor');
-	    //     frontPeelShader.AddUniform('depthTexture');
-	    //     //pass constant uniforms at initialization
-	    //     glUniform1i(frontPeelShader('depthTexture'), 0);
-	    // frontPeelShader.UnUse();
-
-	    // Load the blending shader
-	    blendShader = new vgl.shaderProgram();
-	    blendShader.loadShader(vgl.GL.VERTEX_SHADER, 'blend.vert');
-	    blendShader.loadShader(vgl.GL.FRAGMENT_SHADER, 'blend.frag');
-	    blColorSamp = new vgl.uniform(vgl.GL.INT, 'currColorTexture');
-	    blPrevDepthSamp = new vgl.uniform(vgl.GL.INT, 'prevDepthTexture');
-	    blCurrDepthSamp = new vgl.uniform(vgl.GL.INT, 'currDepthTexture');
-
-	    blwidth = new vgl.floatUniform('width');
-	    blheight = new vgl.floatUniform('height');
-	    blColorSamp.set(0);
-	    blPrevDepthSamp.set(1);
-	    blCurrDepthSamp.set(2);
-
-	    blvertex = new vgl.vertexAttribute('vertexPosition');
-
-	    blendShader.addUniform(blColorSamp);
-	    blendShader.addUniform(blPrevDepthSamp);
-	    blendShader.addUniform(blPrevDepthSamp);
-	    blendShader.addUniform(blwidth);
-	    blendShader.addUniform(blheight);
-	    blendShader.addVertexAttribute(blvertex,
-	      vgl.vertexAttributeKeys.Position);
-
-	    // Compile and link the shader
-	    blendShader.compileAndLink(renderState);
-	    blMaterial.addAttribute(blendShader);
-
-	    //     //add attributes and uniforms
-	    //     blendShader.AddAttribute('vVertex');
-	    //     blendShader.AddUniform('currColorTexture');
-	    //     //pass constant uniforms at initialization
-	    //     glUniform1i(blendShader('currColorTexture'), 0);
-	    // blendShader.UnUse();
-
-	    //Load the final shader
-	    finalShader = new vgl.shaderProgram();
-	    finalShader.loadShader(vgl.GL.VERTEX_SHADER, 'blend.vert');
-	    finalShader.loadShader(vgl.GL.FRAGMENT_SHADER, 'final.frag');
-
-	    //fimv = new vgl.modelViewUniform('modelViewMatrix');
-	    //fiproj = new vgl.projectionUniform('projectionMatrix');
-	    fitempTex = new vgl.uniform(vgl.GL.INT, 'colorTexture');
-	    fiwidth = new vgl.floatUniform('width');
-	    fiheight = new vgl.floatUniform('height');
-	    fibackgroundColor = new vgl.uniform(vgl.GL.FLOAT_VEC3, 'backgroundColor');
-	    fitempTex.set(0);
-	    fivertex = new vgl.vertexAttribute('vertexPosition');
-
-	    //finalShader.addUniform(fimv);
-	    //finalShader.addUniform(fiproj);
-	    finalShader.addUniform(fitempTex);
-	    finalShader.addUniform(fiwidth);
-	    finalShader.addUniform(fiheight);
-	    finalShader.addUniform(fibackgroundColor);
-	    finalShader.addVertexAttribute(fivertex, vgl.vertexAttributeKeys.Position);
-	    finalShader.compileAndLink(renderState);
-	    fiMaterial.addAttribute(finalShader);
-	  }
-
-	  function initFBO(renderState, WIDTH, HEIGHT) {
-	    var i, textureFloatExt, textureFloatLinearExt, depthTextureExt, filtering;
-
-	    // Or browser-appropriate prefix
-	    depthTextureExt = renderState.m_context.getExtension('WEBKIT_WEBGL_depth_texture');
-	    if (!depthTextureExt) {
-	      depthTextureExt = renderState.m_context.getExtension('WEBGL_depth_texture');
-
-	      if (!depthTextureExt) {
-	        console.log('Depth textures are not supported');
-	      }
-	    }
-
-	    var floatTextureExt = renderState.m_context.getExtension('OES_texture_float');
-	    if (!floatTextureExt) {
-	      console.log('float textures are not supported');
-	    }
-
-	    textureFloatExt = renderState.m_context.getExtension('OES_texture_float');
-	    if (!textureFloatExt) {
-	      console.log('Extension Texture Float is not working');
-	      window.alert(':( Sorry, Your browser doesn\'t support texture float extension.');
-	      return;
-	    }
-	    textureFloatLinearExt = renderState.m_context.getExtension(
-	        'OES_texture_float_linear');
-	    depthTextureExt = renderState.m_context.getExtension('WEBGL_depth_texture');
-
-	    if (!depthTextureExt) {
-	      console.log('Extension Depth texture is not working');
-	      window.alert(':( Sorry, Your browser doesn\'t support depth texture extension.');
-	      return;
-	    }
-
-	    filtering = textureFloatLinearExt ? vgl.GL.LINEAR : vgl.GL.NEAREST;
-
-	    //FBO initialization function
-	    // Generate 2 FBO
-	    fbo.push(renderState.m_context.createFramebuffer());
-	    fbo.push(renderState.m_context.createFramebuffer());
-
-	    // Create two textures
-	    texID.push(renderState.m_context.createTexture());
-	    texID.push(renderState.m_context.createTexture());
-
-	    //The FBO has two depth attachments
-	    depthTexID.push(renderState.m_context.createTexture());
-	    depthTexID.push(renderState.m_context.createTexture());
-
-	    // For each attachment
-	    for (i = 0; i < 2; i += 1) {
-	      // First initialize the depth texture
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, depthTexID[i]);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MAG_FILTER, vgl.GL.NEAREST);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MIN_FILTER, vgl.GL.NEAREST);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_S, vgl.GL.CLAMP_TO_EDGE);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_T, vgl.GL.CLAMP_TO_EDGE);
-	      renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D, 0,
-	        vgl.GL.DEPTH_COMPONENT, WIDTH, HEIGHT, 0, vgl.GL.DEPTH_COMPONENT,
-	        vgl.GL.UNSIGNED_SHORT, null);
-
-	      // Second initialize the color attachment
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, texID[i]);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MAG_FILTER, filtering);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MIN_FILTER, filtering);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_S, vgl.GL.CLAMP_TO_EDGE);
-	      renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_T, vgl.GL.CLAMP_TO_EDGE);
-	      renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D, 0, vgl.GL.RGBA,
-	        WIDTH, HEIGHT, 0, vgl.GL.RGBA, vgl.GL.FLOAT, null);
-
-	      // Bind FBO and attach the depth and color attachments
-	      renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, fbo[i]);
-	      renderState.m_context.framebufferTexture2D(vgl.GL.FRAMEBUFFER,
-	        vgl.GL.DEPTH_ATTACHMENT, vgl.GL.TEXTURE_2D, depthTexID[i], 0);
-	      renderState.m_context.framebufferTexture2D(vgl.GL.FRAMEBUFFER,
-	        vgl.GL.COLOR_ATTACHMENT0, vgl.GL.TEXTURE_2D, texID[i], 0);
-	    }
-
-	    // Now setup the color attachment for color blend FBO
-	    colorBlenderTexID = renderState.m_context.createTexture();
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, colorBlenderTexID);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_S, vgl.GL.CLAMP_TO_EDGE);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_WRAP_T, vgl.GL.CLAMP_TO_EDGE);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MIN_FILTER, vgl.GL.NEAREST);
-	    renderState.m_context.texParameteri(vgl.GL.TEXTURE_2D,
-	        vgl.GL.TEXTURE_MAG_FILTER, vgl.GL.NEAREST);
-	    renderState.m_context.texImage2D(vgl.GL.TEXTURE_2D, 0, vgl.GL.RGBA,
-	        WIDTH, HEIGHT, 0, vgl.GL.RGBA, vgl.GL.FLOAT, null);
-
-	    // Generate the color blend FBO ID
-	    colorBlenderFBOID = renderState.m_context.createFramebuffer();
-	    renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, colorBlenderFBOID);
-
-	    // Set the depth attachment of previous FBO as depth attachment for this FBO
-	    renderState.m_context.framebufferTexture2D(vgl.GL.FRAMEBUFFER,
-	        vgl.GL.DEPTH_ATTACHMENT, vgl.GL.TEXTURE_2D, depthTexID[0], 0);
-
-	    // Set the color blender texture as the FBO color attachment
-	    renderState.m_context.framebufferTexture2D(vgl.GL.FRAMEBUFFER,
-	        vgl.GL.COLOR_ATTACHMENT0, vgl.GL.TEXTURE_2D, colorBlenderTexID, 0);
-
-	    // Check the FBO completeness status
-	    var status = renderState.m_context.checkFramebufferStatus(
-	        vgl.GL.FRAMEBUFFER);
-	    if (status === vgl.GL.FRAMEBUFFER_COMPLETE) {
-	      console.log('FBO setup successful !!! \n');
-	    } else {
-	      console.log('Problem with FBO setup');
-	    }
-	    // Unbind FBO
-	    renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, null);
-	  }
-
-	  function setup(renderState) {
-	    if (setupTime.getMTime() < m_this.getMTime()) {
-	      initScreenQuad(renderState, m_this.width(), m_this.height());
-	      initShaders(renderState, m_this.width(), m_this.height());
-	      initFBO(renderState, m_this.width(), m_this.height());
-	      setupTime.modified();
-	    }
-	  }
-
-	  function drawScene(renderState, sortedActors, material) {
-
-	    var i, actor, mvMatrixInv = mat4.create();
-
-	    // // Enable alpha blending with over compositing
-	    // gl.enable(vgl.GL.BLEND);
-	    // gl.blendFunc(vgl.GL.SRC_ALPHA, vgl.GL.ONE_MINUS_SRC_ALPHA);
-
-	    for (i = 0; i < sortedActors.length; i += 1) {
-	      actor = sortedActors[i][2];
-
-	      if (actor.referenceFrame() ===
-	          vgl.boundingObject.ReferenceFrame.Relative) {
-	        mat4.multiply(renderState.m_modelViewMatrix, m_this.m_camera.viewMatrix(),
-	          actor.matrix());
-	        renderState.m_projectionMatrix = m_this.m_camera.projectionMatrix();
-	      } else {
-	        renderState.m_modelViewMatrix = actor.matrix();
-	        renderState.m_projectionMatrix = mat4.create();
-	        mat4.ortho(renderState.m_projectionMatrix, 0,
-	                   m_this.m_width, 0, m_this.m_height, -1, 1);
-	      }
-
-	      mat4.invert(mvMatrixInv, renderState.m_modelViewMatrix);
-	      mat4.transpose(renderState.m_normalMatrix, mvMatrixInv);
-	      renderState.m_mapper = actor.mapper();
-
-	      // TODO Fix this shortcut
-	      if (!material) {
-	        renderState.m_material = actor.material();
-	        renderState.m_material.bind(renderState);
-	        renderState.m_mapper.render(renderState);
-	        renderState.m_material.undoBind(renderState);
-	      } else {
-
-	        var ou = actor.material().shaderProgram().uniform('opacity');
-	        if (ou) {
-	          fpopacity.set(ou.get()[0]);
-	        } else {
-	          fpopacity.set(1.0);
-	        }
-	        renderState.m_material = material;
-	        renderState.m_material.bind(renderState);
-	        renderState.m_mapper.render(renderState);
-	        renderState.m_material.undoBind(renderState);
-	      }
-	    }
-	  }
-
-	  function depthPeelRender(renderState, actors) {
-	    var layer;
-
-	    fpwidth.set(m_this.width());
-	    fpheight.set(m_this.height());
-	    blwidth.set(m_this.width());
-	    blheight.set(m_this.height());
-	    fiwidth.set(m_this.width());
-	    fiheight.set(m_this.height());
-
-	    // Clear color and depth buffer
-	    renderState.m_context.clearColor(0.0, 0.0, 0.0, 0.0);
-	    /*jshint bitwise: false */
-	    renderState.m_context.clear(vgl.GL.OLOR_BUFFER_BIT | vgl.GL.DEPTH_BUFFER_BIT);
-	    /*jshint bitwise: true */
-
-	    // Bind the color blending FBO
-	    renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, colorBlenderFBOID);
-
-	    // 1. In the first pass, we render normally with depth test enabled to
-	    // get the nearest surface
-	    renderState.m_context.enable(vgl.GL.DEPTH_TEST);
-	    renderState.m_context.disable(vgl.GL.BLEND);
-
-	    var clearColor = m_this.m_camera.clearColor();
-	    renderState.m_context.clearColor(clearColor[0], clearColor[1], clearColor[2], 0.0);
-	    /*jshint bitwise: false */
-	    renderState.m_context.clear(vgl.GL.COLOR_BUFFER_BIT | vgl.GL.DEPTH_BUFFER_BIT);
-	    /*jshint bitwise: true */
-
-	    drawScene(renderState, actors);
-
-	    // 2. Depth peeling + blending pass
-	    var numLayers = (NUM_PASSES - 1) * 2;
-
-	    // For each pass
-	    for (layer = 1; layer < numLayers; layer += 1) {
-	      var currId = layer % 2;
-	      var prevId = 1 - currId;
-
-	      // Bind the current FBO
-	      renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, fbo[currId]);
-
-	      // Disbale blending and enable depth testing
-	      renderState.m_context.disable(vgl.GL.BLEND);
-	      renderState.m_context.enable(vgl.GL.DEPTH_TEST);
-
-	      // Bind the depth texture from the previous step
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, depthTexID[prevId]);
-
-	      // Set clear color to black
-	      renderState.m_context.clearColor(0.0, 0.0, 0.0, 0.0);
-
-	      // Clear the color and depth buffers
-	      /*jshint bitwise: false */
-	      renderState.m_context.clear(vgl.GL.COLOR_BUFFER_BIT | vgl.GL.DEPTH_BUFFER_BIT);
-	      /*jshint bitwise: true */
-
-	      // Render scene with the front to back peeling shader
-	      drawScene(renderState, actors, fpMaterial);
-
-	      // Bind the color blender FBO
-	      renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, colorBlenderFBOID);
-
-	      // Enable blending but disable depth testing
-	      renderState.m_context.disable(vgl.GL.DEPTH_TEST);
-	      renderState.m_context.enable(vgl.GL.BLEND);
-
-	      // Change the blending equation to add
-	      renderState.m_context.blendEquation(vgl.GL.FUNC_ADD);
-
-	      // Use separate blending function
-	      renderState.m_context.blendFuncSeparate(vgl.GL.DST_ALPHA, vgl.GL.ONE,
-	          vgl.GL.ZERO, vgl.GL.ONE_MINUS_SRC_ALPHA);
-
-	      // Bind the result from the previous iteration as texture
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE0);
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, texID[currId]);
-
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE1);
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, depthTexID[prevId]);
-
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE2);
-	      renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, depthTexID[currId]);
-
-	      drawFullScreenQuad(renderState, blMaterial);
-
-	      renderState.m_context.activeTexture(vgl.GL.TEXTURE0);
-
-	      // Disable blending
-	      renderState.m_context.disable(vgl.GL.BLEND);
-	    }
-
-	    // 3. Final render pass
-	    //remove the FBO
-	    renderState.m_context.bindFramebuffer(vgl.GL.FRAMEBUFFER, null);
-
-	    // Disable depth testing and blending
-	    renderState.m_context.disable(vgl.GL.DEPTH_TEST);
-	    renderState.m_context.disable(vgl.GL.BLEND);
-
-	    // Bind the color blender texture
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, colorBlenderTexID);
-
-	    fibackgroundColor.set(m_this.m_camera.clearColor());
-
-	    // Draw full screen quad
-	    drawFullScreenQuad(renderState, fiMaterial);
-
-	    renderState.m_context.bindTexture(vgl.GL.TEXTURE_2D, null);
-	  }
-
-	  ////////////////////////////////////////////////////////////////////////////
-	  /**
-	   * Render the scene
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.render = function () {
-	    var i, renSt, children, actor = null, sortedActors = [];
-
-	    renSt = new vgl.renderState();
-	    renSt.m_renderer = m_this;
-	    renSt.m_context = m_this.renderWindow().context();
-	    renSt.m_contextChanged = m_this.m_contextChanged;
-
-	    // Set the viewport for this renderer
-	    renSt.m_context.viewport(m_this.m_x, m_this.m_y, m_this.m_width, m_this.m_height);
-
-	    // Check if we have initialized
-	    setup(renSt);
-
-	    children = m_this.m_sceneRoot.children();
-
-	    if (children.length > 0 && m_this.m_resetScene) {
-	      this.resetCamera();
-	      m_this.m_resetScene = false;
-	    }
-
-	    for (i = 0; i < children.length; i += 1) {
-	      actor = children[i];
-	      actor.computeBounds();
-	      if (actor.visible()) {
-	        sortedActors.push([actor.material().binNumber(),
-	          actor.material().shaderProgram().uniform('opacity').get()[0],
-	          actor]);
-	      }
-	    }
-
-	    // Now perform sorting
-	    sortedActors.sort(function (a, b) { return a[0] - b[0]; });
-	    sortedActors.sort(function (a, b) { return b[1] - a[1]; });
-
-	    depthPeelRender(renSt, sortedActors);
-	  };
-	};
-
-	inherit(vgl.depthPeelRenderer, vgl.renderer);
-
-	return vgl;
-
-	}));
-
-
-
-/***/ }),
-/* 88 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = {
-	  create: __webpack_require__(89)
-	  , clone: __webpack_require__(90)
-	  , copy: __webpack_require__(91)
-	  , identity: __webpack_require__(92)
-	  , transpose: __webpack_require__(93)
-	  , invert: __webpack_require__(94)
-	  , adjoint: __webpack_require__(95)
-	  , determinant: __webpack_require__(96)
-	  , multiply: __webpack_require__(97)
-	  , translate: __webpack_require__(98)
-	  , scale: __webpack_require__(99)
-	  , rotate: __webpack_require__(100)
-	  , rotateX: __webpack_require__(101)
-	  , rotateY: __webpack_require__(102)
-	  , rotateZ: __webpack_require__(103)
-	  , fromRotationTranslation: __webpack_require__(104)
-	  , fromQuat: __webpack_require__(105)
-	  , frustum: __webpack_require__(106)
-	  , perspective: __webpack_require__(107)
-	  , perspectiveFromFieldOfView: __webpack_require__(108)
-	  , ortho: __webpack_require__(109)
-	  , lookAt: __webpack_require__(110)
-	  , str: __webpack_require__(111)
-	}
-
-/***/ }),
-/* 89 */
-/***/ (function(module, exports) {
-
-	module.exports = create;
-
-	/**
-	 * Creates a new identity mat4
-	 *
-	 * @returns {mat4} a new 4x4 matrix
-	 */
-	function create() {
-	    var out = new Float32Array(16);
-	    out[0] = 1;
-	    out[1] = 0;
-	    out[2] = 0;
-	    out[3] = 0;
-	    out[4] = 0;
-	    out[5] = 1;
-	    out[6] = 0;
-	    out[7] = 0;
-	    out[8] = 0;
-	    out[9] = 0;
-	    out[10] = 1;
-	    out[11] = 0;
-	    out[12] = 0;
-	    out[13] = 0;
-	    out[14] = 0;
-	    out[15] = 1;
-	    return out;
-	};
-
-/***/ }),
-/* 90 */
-/***/ (function(module, exports) {
-
-	module.exports = clone;
-
-	/**
-	 * Creates a new mat4 initialized with values from an existing matrix
-	 *
-	 * @param {mat4} a matrix to clone
-	 * @returns {mat4} a new 4x4 matrix
-	 */
-	function clone(a) {
-	    var out = new Float32Array(16);
-	    out[0] = a[0];
-	    out[1] = a[1];
-	    out[2] = a[2];
-	    out[3] = a[3];
-	    out[4] = a[4];
-	    out[5] = a[5];
-	    out[6] = a[6];
-	    out[7] = a[7];
-	    out[8] = a[8];
-	    out[9] = a[9];
-	    out[10] = a[10];
-	    out[11] = a[11];
-	    out[12] = a[12];
-	    out[13] = a[13];
-	    out[14] = a[14];
-	    out[15] = a[15];
-	    return out;
-	};
-
-/***/ }),
-/* 91 */
-/***/ (function(module, exports) {
-
-	module.exports = copy;
-
-	/**
-	 * Copy the values from one mat4 to another
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the source matrix
-	 * @returns {mat4} out
-	 */
-	function copy(out, a) {
-	    out[0] = a[0];
-	    out[1] = a[1];
-	    out[2] = a[2];
-	    out[3] = a[3];
-	    out[4] = a[4];
-	    out[5] = a[5];
-	    out[6] = a[6];
-	    out[7] = a[7];
-	    out[8] = a[8];
-	    out[9] = a[9];
-	    out[10] = a[10];
-	    out[11] = a[11];
-	    out[12] = a[12];
-	    out[13] = a[13];
-	    out[14] = a[14];
-	    out[15] = a[15];
-	    return out;
-	};
-
-/***/ }),
-/* 92 */
-/***/ (function(module, exports) {
-
-	module.exports = identity;
-
-	/**
-	 * Set a mat4 to the identity matrix
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @returns {mat4} out
-	 */
-	function identity(out) {
-	    out[0] = 1;
-	    out[1] = 0;
-	    out[2] = 0;
-	    out[3] = 0;
-	    out[4] = 0;
-	    out[5] = 1;
-	    out[6] = 0;
-	    out[7] = 0;
-	    out[8] = 0;
-	    out[9] = 0;
-	    out[10] = 1;
-	    out[11] = 0;
-	    out[12] = 0;
-	    out[13] = 0;
-	    out[14] = 0;
-	    out[15] = 1;
-	    return out;
-	};
-
-/***/ }),
-/* 93 */
-/***/ (function(module, exports) {
-
-	module.exports = transpose;
-
-	/**
-	 * Transpose the values of a mat4
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the source matrix
-	 * @returns {mat4} out
-	 */
-	function transpose(out, a) {
-	    // If we are transposing ourselves we can skip a few steps but have to cache some values
-	    if (out === a) {
-	        var a01 = a[1], a02 = a[2], a03 = a[3],
-	            a12 = a[6], a13 = a[7],
-	            a23 = a[11];
-
-	        out[1] = a[4];
-	        out[2] = a[8];
-	        out[3] = a[12];
-	        out[4] = a01;
-	        out[6] = a[9];
-	        out[7] = a[13];
-	        out[8] = a02;
-	        out[9] = a12;
-	        out[11] = a[14];
-	        out[12] = a03;
-	        out[13] = a13;
-	        out[14] = a23;
-	    } else {
-	        out[0] = a[0];
-	        out[1] = a[4];
-	        out[2] = a[8];
-	        out[3] = a[12];
-	        out[4] = a[1];
-	        out[5] = a[5];
-	        out[6] = a[9];
-	        out[7] = a[13];
-	        out[8] = a[2];
-	        out[9] = a[6];
-	        out[10] = a[10];
-	        out[11] = a[14];
-	        out[12] = a[3];
-	        out[13] = a[7];
-	        out[14] = a[11];
-	        out[15] = a[15];
-	    }
-	    
-	    return out;
-	};
-
-/***/ }),
-/* 94 */
-/***/ (function(module, exports) {
-
-	module.exports = invert;
-
-	/**
-	 * Inverts a mat4
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the source matrix
-	 * @returns {mat4} out
-	 */
-	function invert(out, a) {
-	    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
-	        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
-	        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
-	        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],
-
-	        b00 = a00 * a11 - a01 * a10,
-	        b01 = a00 * a12 - a02 * a10,
-	        b02 = a00 * a13 - a03 * a10,
-	        b03 = a01 * a12 - a02 * a11,
-	        b04 = a01 * a13 - a03 * a11,
-	        b05 = a02 * a13 - a03 * a12,
-	        b06 = a20 * a31 - a21 * a30,
-	        b07 = a20 * a32 - a22 * a30,
-	        b08 = a20 * a33 - a23 * a30,
-	        b09 = a21 * a32 - a22 * a31,
-	        b10 = a21 * a33 - a23 * a31,
-	        b11 = a22 * a33 - a23 * a32,
-
-	        // Calculate the determinant
-	        det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-
-	    if (!det) { 
-	        return null; 
-	    }
-	    det = 1.0 / det;
-
-	    out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
-	    out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
-	    out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
-	    out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
-	    out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
-	    out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
-	    out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
-	    out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
-	    out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
-	    out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
-	    out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
-	    out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
-	    out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
-	    out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
-	    out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
-	    out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
-
-	    return out;
-	};
-
-/***/ }),
-/* 95 */
-/***/ (function(module, exports) {
-
-	module.exports = adjoint;
-
-	/**
-	 * Calculates the adjugate of a mat4
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the source matrix
-	 * @returns {mat4} out
-	 */
-	function adjoint(out, a) {
-	    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
-	        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
-	        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
-	        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-	    out[0]  =  (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));
-	    out[1]  = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));
-	    out[2]  =  (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));
-	    out[3]  = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));
-	    out[4]  = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));
-	    out[5]  =  (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));
-	    out[6]  = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));
-	    out[7]  =  (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));
-	    out[8]  =  (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));
-	    out[9]  = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));
-	    out[10] =  (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));
-	    out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));
-	    out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));
-	    out[13] =  (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));
-	    out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));
-	    out[15] =  (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));
-	    return out;
-	};
-
-/***/ }),
-/* 96 */
-/***/ (function(module, exports) {
-
-	module.exports = determinant;
-
-	/**
-	 * Calculates the determinant of a mat4
-	 *
-	 * @param {mat4} a the source matrix
-	 * @returns {Number} determinant of a
-	 */
-	function determinant(a) {
-	    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
-	        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
-	        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
-	        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],
-
-	        b00 = a00 * a11 - a01 * a10,
-	        b01 = a00 * a12 - a02 * a10,
-	        b02 = a00 * a13 - a03 * a10,
-	        b03 = a01 * a12 - a02 * a11,
-	        b04 = a01 * a13 - a03 * a11,
-	        b05 = a02 * a13 - a03 * a12,
-	        b06 = a20 * a31 - a21 * a30,
-	        b07 = a20 * a32 - a22 * a30,
-	        b08 = a20 * a33 - a23 * a30,
-	        b09 = a21 * a32 - a22 * a31,
-	        b10 = a21 * a33 - a23 * a31,
-	        b11 = a22 * a33 - a23 * a32;
-
-	    // Calculate the determinant
-	    return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-	};
-
-/***/ }),
-/* 97 */
-/***/ (function(module, exports) {
-
-	module.exports = multiply;
-
-	/**
-	 * Multiplies two mat4's
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the first operand
-	 * @param {mat4} b the second operand
-	 * @returns {mat4} out
-	 */
-	function multiply(out, a, b) {
-	    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
-	        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
-	        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
-	        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-	    // Cache only the current line of the second matrix
-	    var b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];  
-	    out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-	    out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-	    out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-	    out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-	    b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];
-	    out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-	    out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-	    out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-	    out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-	    b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];
-	    out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-	    out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-	    out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-	    out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-	    b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];
-	    out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-	    out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-	    out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-	    out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-	    return out;
-	};
-
-/***/ }),
-/* 98 */
-/***/ (function(module, exports) {
-
-	module.exports = translate;
-
-	/**
-	 * Translate a mat4 by the given vector
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to translate
-	 * @param {vec3} v vector to translate by
-	 * @returns {mat4} out
-	 */
-	function translate(out, a, v) {
-	    var x = v[0], y = v[1], z = v[2],
-	        a00, a01, a02, a03,
-	        a10, a11, a12, a13,
-	        a20, a21, a22, a23;
-
-	    if (a === out) {
-	        out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
-	        out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
-	        out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
-	        out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
-	    } else {
-	        a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
-	        a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
-	        a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
-
-	        out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
-	        out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
-	        out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;
-
-	        out[12] = a00 * x + a10 * y + a20 * z + a[12];
-	        out[13] = a01 * x + a11 * y + a21 * z + a[13];
-	        out[14] = a02 * x + a12 * y + a22 * z + a[14];
-	        out[15] = a03 * x + a13 * y + a23 * z + a[15];
-	    }
-
-	    return out;
-	};
-
-/***/ }),
-/* 99 */
-/***/ (function(module, exports) {
-
-	module.exports = scale;
-
-	/**
-	 * Scales the mat4 by the dimensions in the given vec3
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to scale
-	 * @param {vec3} v the vec3 to scale the matrix by
-	 * @returns {mat4} out
-	 **/
-	function scale(out, a, v) {
-	    var x = v[0], y = v[1], z = v[2];
-
-	    out[0] = a[0] * x;
-	    out[1] = a[1] * x;
-	    out[2] = a[2] * x;
-	    out[3] = a[3] * x;
-	    out[4] = a[4] * y;
-	    out[5] = a[5] * y;
-	    out[6] = a[6] * y;
-	    out[7] = a[7] * y;
-	    out[8] = a[8] * z;
-	    out[9] = a[9] * z;
-	    out[10] = a[10] * z;
-	    out[11] = a[11] * z;
-	    out[12] = a[12];
-	    out[13] = a[13];
-	    out[14] = a[14];
-	    out[15] = a[15];
-	    return out;
-	};
-
-/***/ }),
-/* 100 */
-/***/ (function(module, exports) {
-
-	module.exports = rotate;
-
-	/**
-	 * Rotates a mat4 by the given angle
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to rotate
-	 * @param {Number} rad the angle to rotate the matrix by
-	 * @param {vec3} axis the axis to rotate around
-	 * @returns {mat4} out
-	 */
-	function rotate(out, a, rad, axis) {
-	    var x = axis[0], y = axis[1], z = axis[2],
-	        len = Math.sqrt(x * x + y * y + z * z),
-	        s, c, t,
-	        a00, a01, a02, a03,
-	        a10, a11, a12, a13,
-	        a20, a21, a22, a23,
-	        b00, b01, b02,
-	        b10, b11, b12,
-	        b20, b21, b22;
-
-	    if (Math.abs(len) < 0.000001) { return null; }
-	    
-	    len = 1 / len;
-	    x *= len;
-	    y *= len;
-	    z *= len;
-
-	    s = Math.sin(rad);
-	    c = Math.cos(rad);
-	    t = 1 - c;
-
-	    a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
-	    a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
-	    a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
-
-	    // Construct the elements of the rotation matrix
-	    b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;
-	    b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;
-	    b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;
-
-	    // Perform rotation-specific matrix multiplication
-	    out[0] = a00 * b00 + a10 * b01 + a20 * b02;
-	    out[1] = a01 * b00 + a11 * b01 + a21 * b02;
-	    out[2] = a02 * b00 + a12 * b01 + a22 * b02;
-	    out[3] = a03 * b00 + a13 * b01 + a23 * b02;
-	    out[4] = a00 * b10 + a10 * b11 + a20 * b12;
-	    out[5] = a01 * b10 + a11 * b11 + a21 * b12;
-	    out[6] = a02 * b10 + a12 * b11 + a22 * b12;
-	    out[7] = a03 * b10 + a13 * b11 + a23 * b12;
-	    out[8] = a00 * b20 + a10 * b21 + a20 * b22;
-	    out[9] = a01 * b20 + a11 * b21 + a21 * b22;
-	    out[10] = a02 * b20 + a12 * b21 + a22 * b22;
-	    out[11] = a03 * b20 + a13 * b21 + a23 * b22;
-
-	    if (a !== out) { // If the source and destination differ, copy the unchanged last row
-	        out[12] = a[12];
-	        out[13] = a[13];
-	        out[14] = a[14];
-	        out[15] = a[15];
-	    }
-	    return out;
-	};
-
-/***/ }),
-/* 101 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateX;
-
-	/**
-	 * Rotates a matrix by the given angle around the X axis
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to rotate
-	 * @param {Number} rad the angle to rotate the matrix by
-	 * @returns {mat4} out
-	 */
-	function rotateX(out, a, rad) {
-	    var s = Math.sin(rad),
-	        c = Math.cos(rad),
-	        a10 = a[4],
-	        a11 = a[5],
-	        a12 = a[6],
-	        a13 = a[7],
-	        a20 = a[8],
-	        a21 = a[9],
-	        a22 = a[10],
-	        a23 = a[11];
-
-	    if (a !== out) { // If the source and destination differ, copy the unchanged rows
-	        out[0]  = a[0];
-	        out[1]  = a[1];
-	        out[2]  = a[2];
-	        out[3]  = a[3];
-	        out[12] = a[12];
-	        out[13] = a[13];
-	        out[14] = a[14];
-	        out[15] = a[15];
-	    }
-
-	    // Perform axis-specific matrix multiplication
-	    out[4] = a10 * c + a20 * s;
-	    out[5] = a11 * c + a21 * s;
-	    out[6] = a12 * c + a22 * s;
-	    out[7] = a13 * c + a23 * s;
-	    out[8] = a20 * c - a10 * s;
-	    out[9] = a21 * c - a11 * s;
-	    out[10] = a22 * c - a12 * s;
-	    out[11] = a23 * c - a13 * s;
-	    return out;
-	};
-
-/***/ }),
-/* 102 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateY;
-
-	/**
-	 * Rotates a matrix by the given angle around the Y axis
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to rotate
-	 * @param {Number} rad the angle to rotate the matrix by
-	 * @returns {mat4} out
-	 */
-	function rotateY(out, a, rad) {
-	    var s = Math.sin(rad),
-	        c = Math.cos(rad),
-	        a00 = a[0],
-	        a01 = a[1],
-	        a02 = a[2],
-	        a03 = a[3],
-	        a20 = a[8],
-	        a21 = a[9],
-	        a22 = a[10],
-	        a23 = a[11];
-
-	    if (a !== out) { // If the source and destination differ, copy the unchanged rows
-	        out[4]  = a[4];
-	        out[5]  = a[5];
-	        out[6]  = a[6];
-	        out[7]  = a[7];
-	        out[12] = a[12];
-	        out[13] = a[13];
-	        out[14] = a[14];
-	        out[15] = a[15];
-	    }
-
-	    // Perform axis-specific matrix multiplication
-	    out[0] = a00 * c - a20 * s;
-	    out[1] = a01 * c - a21 * s;
-	    out[2] = a02 * c - a22 * s;
-	    out[3] = a03 * c - a23 * s;
-	    out[8] = a00 * s + a20 * c;
-	    out[9] = a01 * s + a21 * c;
-	    out[10] = a02 * s + a22 * c;
-	    out[11] = a03 * s + a23 * c;
-	    return out;
-	};
-
-/***/ }),
-/* 103 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateZ;
-
-	/**
-	 * Rotates a matrix by the given angle around the Z axis
-	 *
-	 * @param {mat4} out the receiving matrix
-	 * @param {mat4} a the matrix to rotate
-	 * @param {Number} rad the angle to rotate the matrix by
-	 * @returns {mat4} out
-	 */
-	function rotateZ(out, a, rad) {
-	    var s = Math.sin(rad),
-	        c = Math.cos(rad),
-	        a00 = a[0],
-	        a01 = a[1],
-	        a02 = a[2],
-	        a03 = a[3],
-	        a10 = a[4],
-	        a11 = a[5],
-	        a12 = a[6],
-	        a13 = a[7];
-
-	    if (a !== out) { // If the source and destination differ, copy the unchanged last row
-	        out[8]  = a[8];
-	        out[9]  = a[9];
-	        out[10] = a[10];
-	        out[11] = a[11];
-	        out[12] = a[12];
-	        out[13] = a[13];
-	        out[14] = a[14];
-	        out[15] = a[15];
-	    }
-
-	    // Perform axis-specific matrix multiplication
-	    out[0] = a00 * c + a10 * s;
-	    out[1] = a01 * c + a11 * s;
-	    out[2] = a02 * c + a12 * s;
-	    out[3] = a03 * c + a13 * s;
-	    out[4] = a10 * c - a00 * s;
-	    out[5] = a11 * c - a01 * s;
-	    out[6] = a12 * c - a02 * s;
-	    out[7] = a13 * c - a03 * s;
-	    return out;
-	};
-
-/***/ }),
-/* 104 */
-/***/ (function(module, exports) {
-
-	module.exports = fromRotationTranslation;
-
-	/**
-	 * Creates a matrix from a quaternion rotation and vector translation
-	 * This is equivalent to (but much faster than):
-	 *
-	 *     mat4.identity(dest);
-	 *     mat4.translate(dest, vec);
-	 *     var quatMat = mat4.create();
-	 *     quat4.toMat4(quat, quatMat);
-	 *     mat4.multiply(dest, quatMat);
-	 *
-	 * @param {mat4} out mat4 receiving operation result
-	 * @param {quat4} q Rotation quaternion
-	 * @param {vec3} v Translation vector
-	 * @returns {mat4} out
-	 */
-	function fromRotationTranslation(out, q, v) {
-	    // Quaternion math
-	    var x = q[0], y = q[1], z = q[2], w = q[3],
-	        x2 = x + x,
-	        y2 = y + y,
-	        z2 = z + z,
-
-	        xx = x * x2,
-	        xy = x * y2,
-	        xz = x * z2,
-	        yy = y * y2,
-	        yz = y * z2,
-	        zz = z * z2,
-	        wx = w * x2,
-	        wy = w * y2,
-	        wz = w * z2;
-
-	    out[0] = 1 - (yy + zz);
-	    out[1] = xy + wz;
-	    out[2] = xz - wy;
-	    out[3] = 0;
-	    out[4] = xy - wz;
-	    out[5] = 1 - (xx + zz);
-	    out[6] = yz + wx;
-	    out[7] = 0;
-	    out[8] = xz + wy;
-	    out[9] = yz - wx;
-	    out[10] = 1 - (xx + yy);
-	    out[11] = 0;
-	    out[12] = v[0];
-	    out[13] = v[1];
-	    out[14] = v[2];
-	    out[15] = 1;
-	    
-	    return out;
-	};
-
-/***/ }),
-/* 105 */
-/***/ (function(module, exports) {
-
-	module.exports = fromQuat;
-
-	/**
-	 * Creates a matrix from a quaternion rotation.
-	 *
-	 * @param {mat4} out mat4 receiving operation result
-	 * @param {quat4} q Rotation quaternion
-	 * @returns {mat4} out
-	 */
-	function fromQuat(out, q) {
-	    var x = q[0], y = q[1], z = q[2], w = q[3],
-	        x2 = x + x,
-	        y2 = y + y,
-	        z2 = z + z,
-
-	        xx = x * x2,
-	        yx = y * x2,
-	        yy = y * y2,
-	        zx = z * x2,
-	        zy = z * y2,
-	        zz = z * z2,
-	        wx = w * x2,
-	        wy = w * y2,
-	        wz = w * z2;
-
-	    out[0] = 1 - yy - zz;
-	    out[1] = yx + wz;
-	    out[2] = zx - wy;
-	    out[3] = 0;
-
-	    out[4] = yx - wz;
-	    out[5] = 1 - xx - zz;
-	    out[6] = zy + wx;
-	    out[7] = 0;
-
-	    out[8] = zx + wy;
-	    out[9] = zy - wx;
-	    out[10] = 1 - xx - yy;
-	    out[11] = 0;
-
-	    out[12] = 0;
-	    out[13] = 0;
-	    out[14] = 0;
-	    out[15] = 1;
-
-	    return out;
-	};
-
-/***/ }),
-/* 106 */
-/***/ (function(module, exports) {
-
-	module.exports = frustum;
-
-	/**
-	 * Generates a frustum matrix with the given bounds
-	 *
-	 * @param {mat4} out mat4 frustum matrix will be written into
-	 * @param {Number} left Left bound of the frustum
-	 * @param {Number} right Right bound of the frustum
-	 * @param {Number} bottom Bottom bound of the frustum
-	 * @param {Number} top Top bound of the frustum
-	 * @param {Number} near Near bound of the frustum
-	 * @param {Number} far Far bound of the frustum
-	 * @returns {mat4} out
-	 */
-	function frustum(out, left, right, bottom, top, near, far) {
-	    var rl = 1 / (right - left),
-	        tb = 1 / (top - bottom),
-	        nf = 1 / (near - far);
-	    out[0] = (near * 2) * rl;
-	    out[1] = 0;
-	    out[2] = 0;
-	    out[3] = 0;
-	    out[4] = 0;
-	    out[5] = (near * 2) * tb;
-	    out[6] = 0;
-	    out[7] = 0;
-	    out[8] = (right + left) * rl;
-	    out[9] = (top + bottom) * tb;
-	    out[10] = (far + near) * nf;
-	    out[11] = -1;
-	    out[12] = 0;
-	    out[13] = 0;
-	    out[14] = (far * near * 2) * nf;
-	    out[15] = 0;
-	    return out;
-	};
-
-/***/ }),
-/* 107 */
-/***/ (function(module, exports) {
-
-	module.exports = perspective;
-
-	/**
-	 * Generates a perspective projection matrix with the given bounds
-	 *
-	 * @param {mat4} out mat4 frustum matrix will be written into
-	 * @param {number} fovy Vertical field of view in radians
-	 * @param {number} aspect Aspect ratio. typically viewport width/height
-	 * @param {number} near Near bound of the frustum
-	 * @param {number} far Far bound of the frustum
-	 * @returns {mat4} out
-	 */
-	function perspective(out, fovy, aspect, near, far) {
-	    var f = 1.0 / Math.tan(fovy / 2),
-	        nf = 1 / (near - far);
-	    out[0] = f / aspect;
-	    out[1] = 0;
-	    out[2] = 0;
-	    out[3] = 0;
-	    out[4] = 0;
-	    out[5] = f;
-	    out[6] = 0;
-	    out[7] = 0;
-	    out[8] = 0;
-	    out[9] = 0;
-	    out[10] = (far + near) * nf;
-	    out[11] = -1;
-	    out[12] = 0;
-	    out[13] = 0;
-	    out[14] = (2 * far * near) * nf;
-	    out[15] = 0;
-	    return out;
-	};
-
-/***/ }),
-/* 108 */
-/***/ (function(module, exports) {
-
-	module.exports = perspectiveFromFieldOfView;
-
-	/**
-	 * Generates a perspective projection matrix with the given field of view.
-	 * This is primarily useful for generating projection matrices to be used
-	 * with the still experiemental WebVR API.
-	 *
-	 * @param {mat4} out mat4 frustum matrix will be written into
-	 * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees
-	 * @param {number} near Near bound of the frustum
-	 * @param {number} far Far bound of the frustum
-	 * @returns {mat4} out
-	 */
-	function perspectiveFromFieldOfView(out, fov, near, far) {
-	    var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),
-	        downTan = Math.tan(fov.downDegrees * Math.PI/180.0),
-	        leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),
-	        rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),
-	        xScale = 2.0 / (leftTan + rightTan),
-	        yScale = 2.0 / (upTan + downTan);
-
-	    out[0] = xScale;
-	    out[1] = 0.0;
-	    out[2] = 0.0;
-	    out[3] = 0.0;
-	    out[4] = 0.0;
-	    out[5] = yScale;
-	    out[6] = 0.0;
-	    out[7] = 0.0;
-	    out[8] = -((leftTan - rightTan) * xScale * 0.5);
-	    out[9] = ((upTan - downTan) * yScale * 0.5);
-	    out[10] = far / (near - far);
-	    out[11] = -1.0;
-	    out[12] = 0.0;
-	    out[13] = 0.0;
-	    out[14] = (far * near) / (near - far);
-	    out[15] = 0.0;
-	    return out;
-	}
-
-
-
-/***/ }),
-/* 109 */
-/***/ (function(module, exports) {
-
-	module.exports = ortho;
-
-	/**
-	 * Generates a orthogonal projection matrix with the given bounds
-	 *
-	 * @param {mat4} out mat4 frustum matrix will be written into
-	 * @param {number} left Left bound of the frustum
-	 * @param {number} right Right bound of the frustum
-	 * @param {number} bottom Bottom bound of the frustum
-	 * @param {number} top Top bound of the frustum
-	 * @param {number} near Near bound of the frustum
-	 * @param {number} far Far bound of the frustum
-	 * @returns {mat4} out
-	 */
-	function ortho(out, left, right, bottom, top, near, far) {
-	    var lr = 1 / (left - right),
-	        bt = 1 / (bottom - top),
-	        nf = 1 / (near - far);
-	    out[0] = -2 * lr;
-	    out[1] = 0;
-	    out[2] = 0;
-	    out[3] = 0;
-	    out[4] = 0;
-	    out[5] = -2 * bt;
-	    out[6] = 0;
-	    out[7] = 0;
-	    out[8] = 0;
-	    out[9] = 0;
-	    out[10] = 2 * nf;
-	    out[11] = 0;
-	    out[12] = (left + right) * lr;
-	    out[13] = (top + bottom) * bt;
-	    out[14] = (far + near) * nf;
-	    out[15] = 1;
-	    return out;
-	};
-
-/***/ }),
-/* 110 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var identity = __webpack_require__(92);
-
-	module.exports = lookAt;
-
-	/**
-	 * Generates a look-at matrix with the given eye position, focal point, and up axis
-	 *
-	 * @param {mat4} out mat4 frustum matrix will be written into
-	 * @param {vec3} eye Position of the viewer
-	 * @param {vec3} center Point the viewer is looking at
-	 * @param {vec3} up vec3 pointing up
-	 * @returns {mat4} out
-	 */
-	function lookAt(out, eye, center, up) {
-	    var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,
-	        eyex = eye[0],
-	        eyey = eye[1],
-	        eyez = eye[2],
-	        upx = up[0],
-	        upy = up[1],
-	        upz = up[2],
-	        centerx = center[0],
-	        centery = center[1],
-	        centerz = center[2];
-
-	    if (Math.abs(eyex - centerx) < 0.000001 &&
-	        Math.abs(eyey - centery) < 0.000001 &&
-	        Math.abs(eyez - centerz) < 0.000001) {
-	        return identity(out);
-	    }
-
-	    z0 = eyex - centerx;
-	    z1 = eyey - centery;
-	    z2 = eyez - centerz;
-
-	    len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);
-	    z0 *= len;
-	    z1 *= len;
-	    z2 *= len;
-
-	    x0 = upy * z2 - upz * z1;
-	    x1 = upz * z0 - upx * z2;
-	    x2 = upx * z1 - upy * z0;
-	    len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);
-	    if (!len) {
-	        x0 = 0;
-	        x1 = 0;
-	        x2 = 0;
-	    } else {
-	        len = 1 / len;
-	        x0 *= len;
-	        x1 *= len;
-	        x2 *= len;
-	    }
-
-	    y0 = z1 * x2 - z2 * x1;
-	    y1 = z2 * x0 - z0 * x2;
-	    y2 = z0 * x1 - z1 * x0;
-
-	    len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);
-	    if (!len) {
-	        y0 = 0;
-	        y1 = 0;
-	        y2 = 0;
-	    } else {
-	        len = 1 / len;
-	        y0 *= len;
-	        y1 *= len;
-	        y2 *= len;
-	    }
-
-	    out[0] = x0;
-	    out[1] = y0;
-	    out[2] = z0;
-	    out[3] = 0;
-	    out[4] = x1;
-	    out[5] = y1;
-	    out[6] = z1;
-	    out[7] = 0;
-	    out[8] = x2;
-	    out[9] = y2;
-	    out[10] = z2;
-	    out[11] = 0;
-	    out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);
-	    out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);
-	    out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);
-	    out[15] = 1;
-
-	    return out;
-	};
-
-/***/ }),
-/* 111 */
-/***/ (function(module, exports) {
-
-	module.exports = str;
-
-	/**
-	 * Returns a string representation of a mat4
-	 *
-	 * @param {mat4} mat matrix to represent as a string
-	 * @returns {String} string representation of the matrix
-	 */
-	function str(a) {
-	    return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
-	                    a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +
-	                    a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + 
-	                    a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';
-	};
-
-/***/ }),
-/* 112 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = {
-	  create: __webpack_require__(113),
-	  clone: __webpack_require__(114),
-	  fromValues: __webpack_require__(115),
-	  copy: __webpack_require__(116),
-	  set: __webpack_require__(117),
-	  add: __webpack_require__(118),
-	  subtract: __webpack_require__(119),
-	  multiply: __webpack_require__(120),
-	  divide: __webpack_require__(121),
-	  min: __webpack_require__(122),
-	  max: __webpack_require__(123),
-	  scale: __webpack_require__(124),
-	  scaleAndAdd: __webpack_require__(125),
-	  distance: __webpack_require__(126),
-	  squaredDistance: __webpack_require__(127),
-	  length: __webpack_require__(128),
-	  squaredLength: __webpack_require__(129),
-	  negate: __webpack_require__(130),
-	  inverse: __webpack_require__(131),
-	  normalize: __webpack_require__(132),
-	  dot: __webpack_require__(133),
-	  lerp: __webpack_require__(134),
-	  random: __webpack_require__(135),
-	  transformMat4: __webpack_require__(136),
-	  transformQuat: __webpack_require__(137)
-	}
-
-
-/***/ }),
-/* 113 */
-/***/ (function(module, exports) {
-
-	module.exports = create
-
-	/**
-	 * Creates a new, empty vec4
-	 *
-	 * @returns {vec4} a new 4D vector
-	 */
-	function create () {
-	  var out = new Float32Array(4)
-	  out[0] = 0
-	  out[1] = 0
-	  out[2] = 0
-	  out[3] = 0
-	  return out
-	}
-
-
-/***/ }),
-/* 114 */
-/***/ (function(module, exports) {
-
-	module.exports = clone
-
-	/**
-	 * Creates a new vec4 initialized with values from an existing vector
-	 *
-	 * @param {vec4} a vector to clone
-	 * @returns {vec4} a new 4D vector
-	 */
-	function clone (a) {
-	  var out = new Float32Array(4)
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = a[2]
-	  out[3] = a[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 115 */
-/***/ (function(module, exports) {
-
-	module.exports = fromValues
-
-	/**
-	 * Creates a new vec4 initialized with the given values
-	 *
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @param {Number} z Z component
-	 * @param {Number} w W component
-	 * @returns {vec4} a new 4D vector
-	 */
-	function fromValues (x, y, z, w) {
-	  var out = new Float32Array(4)
-	  out[0] = x
-	  out[1] = y
-	  out[2] = z
-	  out[3] = w
-	  return out
-	}
-
-
-/***/ }),
-/* 116 */
-/***/ (function(module, exports) {
-
-	module.exports = copy
-
-	/**
-	 * Copy the values from one vec4 to another
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the source vector
-	 * @returns {vec4} out
-	 */
-	function copy (out, a) {
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = a[2]
-	  out[3] = a[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 117 */
-/***/ (function(module, exports) {
-
-	module.exports = set
-
-	/**
-	 * Set the components of a vec4 to the given values
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @param {Number} z Z component
-	 * @param {Number} w W component
-	 * @returns {vec4} out
-	 */
-	function set (out, x, y, z, w) {
-	  out[0] = x
-	  out[1] = y
-	  out[2] = z
-	  out[3] = w
-	  return out
-	}
-
-
-/***/ }),
-/* 118 */
-/***/ (function(module, exports) {
-
-	module.exports = add
-
-	/**
-	 * Adds two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function add (out, a, b) {
-	  out[0] = a[0] + b[0]
-	  out[1] = a[1] + b[1]
-	  out[2] = a[2] + b[2]
-	  out[3] = a[3] + b[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 119 */
-/***/ (function(module, exports) {
-
-	module.exports = subtract
-
-	/**
-	 * Subtracts vector b from vector a
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function subtract (out, a, b) {
-	  out[0] = a[0] - b[0]
-	  out[1] = a[1] - b[1]
-	  out[2] = a[2] - b[2]
-	  out[3] = a[3] - b[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 120 */
-/***/ (function(module, exports) {
-
-	module.exports = multiply
-
-	/**
-	 * Multiplies two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function multiply (out, a, b) {
-	  out[0] = a[0] * b[0]
-	  out[1] = a[1] * b[1]
-	  out[2] = a[2] * b[2]
-	  out[3] = a[3] * b[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 121 */
-/***/ (function(module, exports) {
-
-	module.exports = divide
-
-	/**
-	 * Divides two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function divide (out, a, b) {
-	  out[0] = a[0] / b[0]
-	  out[1] = a[1] / b[1]
-	  out[2] = a[2] / b[2]
-	  out[3] = a[3] / b[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 122 */
-/***/ (function(module, exports) {
-
-	module.exports = min
-
-	/**
-	 * Returns the minimum of two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function min (out, a, b) {
-	  out[0] = Math.min(a[0], b[0])
-	  out[1] = Math.min(a[1], b[1])
-	  out[2] = Math.min(a[2], b[2])
-	  out[3] = Math.min(a[3], b[3])
-	  return out
-	}
-
-
-/***/ }),
-/* 123 */
-/***/ (function(module, exports) {
-
-	module.exports = max
-
-	/**
-	 * Returns the maximum of two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {vec4} out
-	 */
-	function max (out, a, b) {
-	  out[0] = Math.max(a[0], b[0])
-	  out[1] = Math.max(a[1], b[1])
-	  out[2] = Math.max(a[2], b[2])
-	  out[3] = Math.max(a[3], b[3])
-	  return out
-	}
-
-
-/***/ }),
-/* 124 */
-/***/ (function(module, exports) {
-
-	module.exports = scale
-
-	/**
-	 * Scales a vec4 by a scalar number
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the vector to scale
-	 * @param {Number} b amount to scale the vector by
-	 * @returns {vec4} out
-	 */
-	function scale (out, a, b) {
-	  out[0] = a[0] * b
-	  out[1] = a[1] * b
-	  out[2] = a[2] * b
-	  out[3] = a[3] * b
-	  return out
-	}
-
-
-/***/ }),
-/* 125 */
-/***/ (function(module, exports) {
-
-	module.exports = scaleAndAdd
-
-	/**
-	 * Adds two vec4's after scaling the second operand by a scalar value
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @param {Number} scale the amount to scale b by before adding
-	 * @returns {vec4} out
-	 */
-	function scaleAndAdd (out, a, b, scale) {
-	  out[0] = a[0] + (b[0] * scale)
-	  out[1] = a[1] + (b[1] * scale)
-	  out[2] = a[2] + (b[2] * scale)
-	  out[3] = a[3] + (b[3] * scale)
-	  return out
-	}
-
-
-/***/ }),
-/* 126 */
-/***/ (function(module, exports) {
-
-	module.exports = distance
-
-	/**
-	 * Calculates the euclidian distance between two vec4's
-	 *
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {Number} distance between a and b
-	 */
-	function distance (a, b) {
-	  var x = b[0] - a[0],
-	    y = b[1] - a[1],
-	    z = b[2] - a[2],
-	    w = b[3] - a[3]
-	  return Math.sqrt(x * x + y * y + z * z + w * w)
-	}
-
-
-/***/ }),
-/* 127 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredDistance
-
-	/**
-	 * Calculates the squared euclidian distance between two vec4's
-	 *
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {Number} squared distance between a and b
-	 */
-	function squaredDistance (a, b) {
-	  var x = b[0] - a[0],
-	    y = b[1] - a[1],
-	    z = b[2] - a[2],
-	    w = b[3] - a[3]
-	  return x * x + y * y + z * z + w * w
-	}
-
-
-/***/ }),
-/* 128 */
-/***/ (function(module, exports) {
-
-	module.exports = length
-
-	/**
-	 * Calculates the length of a vec4
-	 *
-	 * @param {vec4} a vector to calculate length of
-	 * @returns {Number} length of a
-	 */
-	function length (a) {
-	  var x = a[0],
-	    y = a[1],
-	    z = a[2],
-	    w = a[3]
-	  return Math.sqrt(x * x + y * y + z * z + w * w)
-	}
-
-
-/***/ }),
-/* 129 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredLength
-
-	/**
-	 * Calculates the squared length of a vec4
-	 *
-	 * @param {vec4} a vector to calculate squared length of
-	 * @returns {Number} squared length of a
-	 */
-	function squaredLength (a) {
-	  var x = a[0],
-	    y = a[1],
-	    z = a[2],
-	    w = a[3]
-	  return x * x + y * y + z * z + w * w
-	}
-
-
-/***/ }),
-/* 130 */
-/***/ (function(module, exports) {
-
-	module.exports = negate
-
-	/**
-	 * Negates the components of a vec4
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a vector to negate
-	 * @returns {vec4} out
-	 */
-	function negate (out, a) {
-	  out[0] = -a[0]
-	  out[1] = -a[1]
-	  out[2] = -a[2]
-	  out[3] = -a[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 131 */
-/***/ (function(module, exports) {
-
-	module.exports = inverse
-
-	/**
-	 * Returns the inverse of the components of a vec4
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a vector to invert
-	 * @returns {vec4} out
-	 */
-	function inverse (out, a) {
-	  out[0] = 1.0 / a[0]
-	  out[1] = 1.0 / a[1]
-	  out[2] = 1.0 / a[2]
-	  out[3] = 1.0 / a[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 132 */
-/***/ (function(module, exports) {
-
-	module.exports = normalize
-
-	/**
-	 * Normalize a vec4
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a vector to normalize
-	 * @returns {vec4} out
-	 */
-	function normalize (out, a) {
-	  var x = a[0],
-	    y = a[1],
-	    z = a[2],
-	    w = a[3]
-	  var len = x * x + y * y + z * z + w * w
-	  if (len > 0) {
-	    len = 1 / Math.sqrt(len)
-	    out[0] = x * len
-	    out[1] = y * len
-	    out[2] = z * len
-	    out[3] = w * len
-	  }
-	  return out
-	}
-
-
-/***/ }),
-/* 133 */
-/***/ (function(module, exports) {
-
-	module.exports = dot
-
-	/**
-	 * Calculates the dot product of two vec4's
-	 *
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @returns {Number} dot product of a and b
-	 */
-	function dot (a, b) {
-	  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]
-	}
-
-
-/***/ }),
-/* 134 */
-/***/ (function(module, exports) {
-
-	module.exports = lerp
-
-	/**
-	 * Performs a linear interpolation between two vec4's
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the first operand
-	 * @param {vec4} b the second operand
-	 * @param {Number} t interpolation amount between the two inputs
-	 * @returns {vec4} out
-	 */
-	function lerp (out, a, b, t) {
-	  var ax = a[0],
-	    ay = a[1],
-	    az = a[2],
-	    aw = a[3]
-	  out[0] = ax + t * (b[0] - ax)
-	  out[1] = ay + t * (b[1] - ay)
-	  out[2] = az + t * (b[2] - az)
-	  out[3] = aw + t * (b[3] - aw)
-	  return out
-	}
-
-
-/***/ }),
-/* 135 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var vecNormalize = __webpack_require__(132)
-	var vecScale = __webpack_require__(124)
-
-	module.exports = random
-
-	/**
-	 * Generates a random vector with the given scale
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
-	 * @returns {vec4} out
-	 */
-	function random (out, scale) {
-	  scale = scale || 1.0
-
-	  // TODO: This is a pretty awful way of doing this. Find something better.
-	  out[0] = Math.random()
-	  out[1] = Math.random()
-	  out[2] = Math.random()
-	  out[3] = Math.random()
-	  vecNormalize(out, out)
-	  vecScale(out, out, scale)
-	  return out
-	}
-
-
-/***/ }),
-/* 136 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat4
-
-	/**
-	 * Transforms the vec4 with a mat4.
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the vector to transform
-	 * @param {mat4} m matrix to transform with
-	 * @returns {vec4} out
-	 */
-	function transformMat4 (out, a, m) {
-	  var x = a[0], y = a[1], z = a[2], w = a[3]
-	  out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w
-	  out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w
-	  out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w
-	  out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w
-	  return out
-	}
-
-
-/***/ }),
-/* 137 */
-/***/ (function(module, exports) {
-
-	module.exports = transformQuat
-
-	/**
-	 * Transforms the vec4 with a quat
-	 *
-	 * @param {vec4} out the receiving vector
-	 * @param {vec4} a the vector to transform
-	 * @param {quat} q quaternion to transform with
-	 * @returns {vec4} out
-	 */
-	function transformQuat (out, a, q) {
-	  var x = a[0], y = a[1], z = a[2],
-	    qx = q[0], qy = q[1], qz = q[2], qw = q[3],
-
-	    // calculate quat * vec
-	    ix = qw * x + qy * z - qz * y,
-	    iy = qw * y + qz * x - qx * z,
-	    iz = qw * z + qx * y - qy * x,
-	    iw = -qx * x - qy * y - qz * z
-
-	  // calculate result * inverse quat
-	  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy
-	  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz
-	  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx
-	  out[3] = a[3]
-	  return out
-	}
-
-
-/***/ }),
-/* 138 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = {
-	  create: __webpack_require__(139)
-	  , clone: __webpack_require__(140)
-	  , angle: __webpack_require__(141)
-	  , fromValues: __webpack_require__(142)
-	  , copy: __webpack_require__(145)
-	  , set: __webpack_require__(146)
-	  , add: __webpack_require__(147)
-	  , subtract: __webpack_require__(148)
-	  , multiply: __webpack_require__(149)
-	  , divide: __webpack_require__(150)
-	  , min: __webpack_require__(151)
-	  , max: __webpack_require__(152)
-	  , scale: __webpack_require__(153)
-	  , scaleAndAdd: __webpack_require__(154)
-	  , distance: __webpack_require__(155)
-	  , squaredDistance: __webpack_require__(156)
-	  , length: __webpack_require__(157)
-	  , squaredLength: __webpack_require__(158)
-	  , negate: __webpack_require__(159)
-	  , inverse: __webpack_require__(160)
-	  , normalize: __webpack_require__(143)
-	  , dot: __webpack_require__(144)
-	  , cross: __webpack_require__(161)
-	  , lerp: __webpack_require__(162)
-	  , random: __webpack_require__(163)
-	  , transformMat4: __webpack_require__(164)
-	  , transformMat3: __webpack_require__(165)
-	  , transformQuat: __webpack_require__(166)
-	  , rotateX: __webpack_require__(167)
-	  , rotateY: __webpack_require__(168)
-	  , rotateZ: __webpack_require__(169)
-	  , forEach: __webpack_require__(170)
-	}
-
-/***/ }),
-/* 139 */
-/***/ (function(module, exports) {
-
-	module.exports = create;
-
-	/**
-	 * Creates a new, empty vec3
-	 *
-	 * @returns {vec3} a new 3D vector
-	 */
-	function create() {
-	    var out = new Float32Array(3)
-	    out[0] = 0
-	    out[1] = 0
-	    out[2] = 0
-	    return out
-	}
-
-/***/ }),
-/* 140 */
-/***/ (function(module, exports) {
-
-	module.exports = clone;
-
-	/**
-	 * Creates a new vec3 initialized with values from an existing vector
-	 *
-	 * @param {vec3} a vector to clone
-	 * @returns {vec3} a new 3D vector
-	 */
-	function clone(a) {
-	    var out = new Float32Array(3)
-	    out[0] = a[0]
-	    out[1] = a[1]
-	    out[2] = a[2]
-	    return out
-	}
-
-/***/ }),
-/* 141 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = angle
-
-	var fromValues = __webpack_require__(142)
-	var normalize = __webpack_require__(143)
-	var dot = __webpack_require__(144)
-
-	/**
-	 * Get the angle between two 3D vectors
-	 * @param {vec3} a The first operand
-	 * @param {vec3} b The second operand
-	 * @returns {Number} The angle in radians
-	 */
-	function angle(a, b) {
-	    var tempA = fromValues(a[0], a[1], a[2])
-	    var tempB = fromValues(b[0], b[1], b[2])
-	 
-	    normalize(tempA, tempA)
-	    normalize(tempB, tempB)
-	 
-	    var cosine = dot(tempA, tempB)
-
-	    if(cosine > 1.0){
-	        return 0
-	    } else {
-	        return Math.acos(cosine)
-	    }     
-	}
-
-
-/***/ }),
-/* 142 */
-/***/ (function(module, exports) {
-
-	module.exports = fromValues;
-
-	/**
-	 * Creates a new vec3 initialized with the given values
-	 *
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @param {Number} z Z component
-	 * @returns {vec3} a new 3D vector
-	 */
-	function fromValues(x, y, z) {
-	    var out = new Float32Array(3)
-	    out[0] = x
-	    out[1] = y
-	    out[2] = z
-	    return out
-	}
-
-/***/ }),
-/* 143 */
-/***/ (function(module, exports) {
-
-	module.exports = normalize;
-
-	/**
-	 * Normalize a vec3
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a vector to normalize
-	 * @returns {vec3} out
-	 */
-	function normalize(out, a) {
-	    var x = a[0],
-	        y = a[1],
-	        z = a[2]
-	    var len = x*x + y*y + z*z
-	    if (len > 0) {
-	        //TODO: evaluate use of glm_invsqrt here?
-	        len = 1 / Math.sqrt(len)
-	        out[0] = a[0] * len
-	        out[1] = a[1] * len
-	        out[2] = a[2] * len
-	    }
-	    return out
-	}
-
-/***/ }),
-/* 144 */
-/***/ (function(module, exports) {
-
-	module.exports = dot;
-
-	/**
-	 * Calculates the dot product of two vec3's
-	 *
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {Number} dot product of a and b
-	 */
-	function dot(a, b) {
-	    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]
-	}
-
-/***/ }),
-/* 145 */
-/***/ (function(module, exports) {
-
-	module.exports = copy;
-
-	/**
-	 * Copy the values from one vec3 to another
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the source vector
-	 * @returns {vec3} out
-	 */
-	function copy(out, a) {
-	    out[0] = a[0]
-	    out[1] = a[1]
-	    out[2] = a[2]
-	    return out
-	}
-
-/***/ }),
-/* 146 */
-/***/ (function(module, exports) {
-
-	module.exports = set;
-
-	/**
-	 * Set the components of a vec3 to the given values
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @param {Number} z Z component
-	 * @returns {vec3} out
-	 */
-	function set(out, x, y, z) {
-	    out[0] = x
-	    out[1] = y
-	    out[2] = z
-	    return out
-	}
-
-/***/ }),
-/* 147 */
-/***/ (function(module, exports) {
-
-	module.exports = add;
-
-	/**
-	 * Adds two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function add(out, a, b) {
-	    out[0] = a[0] + b[0]
-	    out[1] = a[1] + b[1]
-	    out[2] = a[2] + b[2]
-	    return out
-	}
-
-/***/ }),
-/* 148 */
-/***/ (function(module, exports) {
-
-	module.exports = subtract;
-
-	/**
-	 * Subtracts vector b from vector a
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function subtract(out, a, b) {
-	    out[0] = a[0] - b[0]
-	    out[1] = a[1] - b[1]
-	    out[2] = a[2] - b[2]
-	    return out
-	}
-
-/***/ }),
-/* 149 */
-/***/ (function(module, exports) {
-
-	module.exports = multiply;
-
-	/**
-	 * Multiplies two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function multiply(out, a, b) {
-	    out[0] = a[0] * b[0]
-	    out[1] = a[1] * b[1]
-	    out[2] = a[2] * b[2]
-	    return out
-	}
-
-/***/ }),
-/* 150 */
-/***/ (function(module, exports) {
-
-	module.exports = divide;
-
-	/**
-	 * Divides two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function divide(out, a, b) {
-	    out[0] = a[0] / b[0]
-	    out[1] = a[1] / b[1]
-	    out[2] = a[2] / b[2]
-	    return out
-	}
-
-/***/ }),
-/* 151 */
-/***/ (function(module, exports) {
-
-	module.exports = min;
-
-	/**
-	 * Returns the minimum of two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function min(out, a, b) {
-	    out[0] = Math.min(a[0], b[0])
-	    out[1] = Math.min(a[1], b[1])
-	    out[2] = Math.min(a[2], b[2])
-	    return out
-	}
-
-/***/ }),
-/* 152 */
-/***/ (function(module, exports) {
-
-	module.exports = max;
-
-	/**
-	 * Returns the maximum of two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function max(out, a, b) {
-	    out[0] = Math.max(a[0], b[0])
-	    out[1] = Math.max(a[1], b[1])
-	    out[2] = Math.max(a[2], b[2])
-	    return out
-	}
-
-/***/ }),
-/* 153 */
-/***/ (function(module, exports) {
-
-	module.exports = scale;
-
-	/**
-	 * Scales a vec3 by a scalar number
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the vector to scale
-	 * @param {Number} b amount to scale the vector by
-	 * @returns {vec3} out
-	 */
-	function scale(out, a, b) {
-	    out[0] = a[0] * b
-	    out[1] = a[1] * b
-	    out[2] = a[2] * b
-	    return out
-	}
-
-/***/ }),
-/* 154 */
-/***/ (function(module, exports) {
-
-	module.exports = scaleAndAdd;
-
-	/**
-	 * Adds two vec3's after scaling the second operand by a scalar value
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @param {Number} scale the amount to scale b by before adding
-	 * @returns {vec3} out
-	 */
-	function scaleAndAdd(out, a, b, scale) {
-	    out[0] = a[0] + (b[0] * scale)
-	    out[1] = a[1] + (b[1] * scale)
-	    out[2] = a[2] + (b[2] * scale)
-	    return out
-	}
-
-/***/ }),
-/* 155 */
-/***/ (function(module, exports) {
-
-	module.exports = distance;
-
-	/**
-	 * Calculates the euclidian distance between two vec3's
-	 *
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {Number} distance between a and b
-	 */
-	function distance(a, b) {
-	    var x = b[0] - a[0],
-	        y = b[1] - a[1],
-	        z = b[2] - a[2]
-	    return Math.sqrt(x*x + y*y + z*z)
-	}
-
-/***/ }),
-/* 156 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredDistance;
-
-	/**
-	 * Calculates the squared euclidian distance between two vec3's
-	 *
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {Number} squared distance between a and b
-	 */
-	function squaredDistance(a, b) {
-	    var x = b[0] - a[0],
-	        y = b[1] - a[1],
-	        z = b[2] - a[2]
-	    return x*x + y*y + z*z
-	}
-
-/***/ }),
-/* 157 */
-/***/ (function(module, exports) {
-
-	module.exports = length;
-
-	/**
-	 * Calculates the length of a vec3
-	 *
-	 * @param {vec3} a vector to calculate length of
-	 * @returns {Number} length of a
-	 */
-	function length(a) {
-	    var x = a[0],
-	        y = a[1],
-	        z = a[2]
-	    return Math.sqrt(x*x + y*y + z*z)
-	}
-
-/***/ }),
-/* 158 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredLength;
-
-	/**
-	 * Calculates the squared length of a vec3
-	 *
-	 * @param {vec3} a vector to calculate squared length of
-	 * @returns {Number} squared length of a
-	 */
-	function squaredLength(a) {
-	    var x = a[0],
-	        y = a[1],
-	        z = a[2]
-	    return x*x + y*y + z*z
-	}
-
-/***/ }),
-/* 159 */
-/***/ (function(module, exports) {
-
-	module.exports = negate;
-
-	/**
-	 * Negates the components of a vec3
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a vector to negate
-	 * @returns {vec3} out
-	 */
-	function negate(out, a) {
-	    out[0] = -a[0]
-	    out[1] = -a[1]
-	    out[2] = -a[2]
-	    return out
-	}
-
-/***/ }),
-/* 160 */
-/***/ (function(module, exports) {
-
-	module.exports = inverse;
-
-	/**
-	 * Returns the inverse of the components of a vec3
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a vector to invert
-	 * @returns {vec3} out
-	 */
-	function inverse(out, a) {
-	  out[0] = 1.0 / a[0]
-	  out[1] = 1.0 / a[1]
-	  out[2] = 1.0 / a[2]
-	  return out
-	}
-
-/***/ }),
-/* 161 */
-/***/ (function(module, exports) {
-
-	module.exports = cross;
-
-	/**
-	 * Computes the cross product of two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @returns {vec3} out
-	 */
-	function cross(out, a, b) {
-	    var ax = a[0], ay = a[1], az = a[2],
-	        bx = b[0], by = b[1], bz = b[2]
-
-	    out[0] = ay * bz - az * by
-	    out[1] = az * bx - ax * bz
-	    out[2] = ax * by - ay * bx
-	    return out
-	}
-
-/***/ }),
-/* 162 */
-/***/ (function(module, exports) {
-
-	module.exports = lerp;
-
-	/**
-	 * Performs a linear interpolation between two vec3's
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the first operand
-	 * @param {vec3} b the second operand
-	 * @param {Number} t interpolation amount between the two inputs
-	 * @returns {vec3} out
-	 */
-	function lerp(out, a, b, t) {
-	    var ax = a[0],
-	        ay = a[1],
-	        az = a[2]
-	    out[0] = ax + t * (b[0] - ax)
-	    out[1] = ay + t * (b[1] - ay)
-	    out[2] = az + t * (b[2] - az)
-	    return out
-	}
-
-/***/ }),
-/* 163 */
-/***/ (function(module, exports) {
-
-	module.exports = random;
-
-	/**
-	 * Generates a random vector with the given scale
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
-	 * @returns {vec3} out
-	 */
-	function random(out, scale) {
-	    scale = scale || 1.0
-
-	    var r = Math.random() * 2.0 * Math.PI
-	    var z = (Math.random() * 2.0) - 1.0
-	    var zScale = Math.sqrt(1.0-z*z) * scale
-
-	    out[0] = Math.cos(r) * zScale
-	    out[1] = Math.sin(r) * zScale
-	    out[2] = z * scale
-	    return out
-	}
-
-/***/ }),
-/* 164 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat4;
-
-	/**
-	 * Transforms the vec3 with a mat4.
-	 * 4th vector component is implicitly '1'
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the vector to transform
-	 * @param {mat4} m matrix to transform with
-	 * @returns {vec3} out
-	 */
-	function transformMat4(out, a, m) {
-	    var x = a[0], y = a[1], z = a[2],
-	        w = m[3] * x + m[7] * y + m[11] * z + m[15]
-	    w = w || 1.0
-	    out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w
-	    out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w
-	    out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w
-	    return out
-	}
-
-/***/ }),
-/* 165 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat3;
-
-	/**
-	 * Transforms the vec3 with a mat3.
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the vector to transform
-	 * @param {mat4} m the 3x3 matrix to transform with
-	 * @returns {vec3} out
-	 */
-	function transformMat3(out, a, m) {
-	    var x = a[0], y = a[1], z = a[2]
-	    out[0] = x * m[0] + y * m[3] + z * m[6]
-	    out[1] = x * m[1] + y * m[4] + z * m[7]
-	    out[2] = x * m[2] + y * m[5] + z * m[8]
-	    return out
-	}
-
-/***/ }),
-/* 166 */
-/***/ (function(module, exports) {
-
-	module.exports = transformQuat;
-
-	/**
-	 * Transforms the vec3 with a quat
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec3} a the vector to transform
-	 * @param {quat} q quaternion to transform with
-	 * @returns {vec3} out
-	 */
-	function transformQuat(out, a, q) {
-	    // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations
-
-	    var x = a[0], y = a[1], z = a[2],
-	        qx = q[0], qy = q[1], qz = q[2], qw = q[3],
-
-	        // calculate quat * vec
-	        ix = qw * x + qy * z - qz * y,
-	        iy = qw * y + qz * x - qx * z,
-	        iz = qw * z + qx * y - qy * x,
-	        iw = -qx * x - qy * y - qz * z
-
-	    // calculate result * inverse quat
-	    out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy
-	    out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz
-	    out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx
-	    return out
-	}
-
-/***/ }),
-/* 167 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateX;
-
-	/**
-	 * Rotate a 3D vector around the x-axis
-	 * @param {vec3} out The receiving vec3
-	 * @param {vec3} a The vec3 point to rotate
-	 * @param {vec3} b The origin of the rotation
-	 * @param {Number} c The angle of rotation
-	 * @returns {vec3} out
-	 */
-	function rotateX(out, a, b, c){
-	    var p = [], r=[]
-	    //Translate point to the origin
-	    p[0] = a[0] - b[0]
-	    p[1] = a[1] - b[1]
-	    p[2] = a[2] - b[2]
-
-	    //perform rotation
-	    r[0] = p[0]
-	    r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c)
-	    r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c)
-
-	    //translate to correct position
-	    out[0] = r[0] + b[0]
-	    out[1] = r[1] + b[1]
-	    out[2] = r[2] + b[2]
-
-	    return out
-	}
-
-/***/ }),
-/* 168 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateY;
-
-	/**
-	 * Rotate a 3D vector around the y-axis
-	 * @param {vec3} out The receiving vec3
-	 * @param {vec3} a The vec3 point to rotate
-	 * @param {vec3} b The origin of the rotation
-	 * @param {Number} c The angle of rotation
-	 * @returns {vec3} out
-	 */
-	function rotateY(out, a, b, c){
-	    var p = [], r=[]
-	    //Translate point to the origin
-	    p[0] = a[0] - b[0]
-	    p[1] = a[1] - b[1]
-	    p[2] = a[2] - b[2]
-	  
-	    //perform rotation
-	    r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c)
-	    r[1] = p[1]
-	    r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c)
-	  
-	    //translate to correct position
-	    out[0] = r[0] + b[0]
-	    out[1] = r[1] + b[1]
-	    out[2] = r[2] + b[2]
-	  
-	    return out
-	}
-
-/***/ }),
-/* 169 */
-/***/ (function(module, exports) {
-
-	module.exports = rotateZ;
-
-	/**
-	 * Rotate a 3D vector around the z-axis
-	 * @param {vec3} out The receiving vec3
-	 * @param {vec3} a The vec3 point to rotate
-	 * @param {vec3} b The origin of the rotation
-	 * @param {Number} c The angle of rotation
-	 * @returns {vec3} out
-	 */
-	function rotateZ(out, a, b, c){
-	    var p = [], r=[]
-	    //Translate point to the origin
-	    p[0] = a[0] - b[0]
-	    p[1] = a[1] - b[1]
-	    p[2] = a[2] - b[2]
-	  
-	    //perform rotation
-	    r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c)
-	    r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c)
-	    r[2] = p[2]
-	  
-	    //translate to correct position
-	    out[0] = r[0] + b[0]
-	    out[1] = r[1] + b[1]
-	    out[2] = r[2] + b[2]
-	  
-	    return out
-	}
-
-/***/ }),
-/* 170 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = forEach;
-
-	var vec = __webpack_require__(139)()
-
-	/**
-	 * Perform some operation over an array of vec3s.
-	 *
-	 * @param {Array} a the array of vectors to iterate over
-	 * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
-	 * @param {Number} offset Number of elements to skip at the beginning of the array
-	 * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
-	 * @param {Function} fn Function to call for each vector in the array
-	 * @param {Object} [arg] additional argument to pass to fn
-	 * @returns {Array} a
-	 * @function
-	 */
-	function forEach(a, stride, offset, count, fn, arg) {
-	        var i, l
-	        if(!stride) {
-	            stride = 3
-	        }
-
-	        if(!offset) {
-	            offset = 0
-	        }
-	        
-	        if(count) {
-	            l = Math.min((count * stride) + offset, a.length)
-	        } else {
-	            l = a.length
-	        }
-
-	        for(i = offset; i < l; i += stride) {
-	            vec[0] = a[i] 
-	            vec[1] = a[i+1] 
-	            vec[2] = a[i+2]
-	            fn(vec, vec, arg)
-	            a[i] = vec[0] 
-	            a[i+1] = vec[1] 
-	            a[i+2] = vec[2]
-	        }
-	        
-	        return a
-	}
-
-/***/ }),
-/* 171 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = {
-	  create: __webpack_require__(172)
-	  , clone: __webpack_require__(173)
-	  , fromValues: __webpack_require__(174)
-	  , copy: __webpack_require__(175)
-	  , set: __webpack_require__(176)
-	  , add: __webpack_require__(177)
-	  , subtract: __webpack_require__(178)
-	  , multiply: __webpack_require__(179)
-	  , divide: __webpack_require__(180)
-	  , min: __webpack_require__(181)
-	  , max: __webpack_require__(182)
-	  , scale: __webpack_require__(183)
-	  , scaleAndAdd: __webpack_require__(184)
-	  , distance: __webpack_require__(185)
-	  , squaredDistance: __webpack_require__(186)
-	  , length: __webpack_require__(187)
-	  , squaredLength: __webpack_require__(188)
-	  , negate: __webpack_require__(189)
-	  , normalize: __webpack_require__(190)
-	  , dot: __webpack_require__(191)
-	  , cross: __webpack_require__(192)
-	  , lerp: __webpack_require__(193)
-	  , random: __webpack_require__(194)
-	  , transformMat2: __webpack_require__(195)
-	  , transformMat2d: __webpack_require__(196)
-	  , transformMat3: __webpack_require__(197)
-	  , transformMat4: __webpack_require__(198)
-	  , forEach: __webpack_require__(199)
-	}
-
-/***/ }),
-/* 172 */
-/***/ (function(module, exports) {
-
-	module.exports = create
-
-	/**
-	 * Creates a new, empty vec2
-	 *
-	 * @returns {vec2} a new 2D vector
-	 */
-	function create() {
-	    var out = new Float32Array(2)
-	    out[0] = 0
-	    out[1] = 0
-	    return out
-	}
-
-/***/ }),
-/* 173 */
-/***/ (function(module, exports) {
-
-	module.exports = clone
-
-	/**
-	 * Creates a new vec2 initialized with values from an existing vector
-	 *
-	 * @param {vec2} a vector to clone
-	 * @returns {vec2} a new 2D vector
-	 */
-	function clone(a) {
-	    var out = new Float32Array(2)
-	    out[0] = a[0]
-	    out[1] = a[1]
-	    return out
-	}
-
-/***/ }),
-/* 174 */
-/***/ (function(module, exports) {
-
-	module.exports = fromValues
-
-	/**
-	 * Creates a new vec2 initialized with the given values
-	 *
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @returns {vec2} a new 2D vector
-	 */
-	function fromValues(x, y) {
-	    var out = new Float32Array(2)
-	    out[0] = x
-	    out[1] = y
-	    return out
-	}
-
-/***/ }),
-/* 175 */
-/***/ (function(module, exports) {
-
-	module.exports = copy
-
-	/**
-	 * Copy the values from one vec2 to another
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the source vector
-	 * @returns {vec2} out
-	 */
-	function copy(out, a) {
-	    out[0] = a[0]
-	    out[1] = a[1]
-	    return out
-	}
-
-/***/ }),
-/* 176 */
-/***/ (function(module, exports) {
-
-	module.exports = set
-
-	/**
-	 * Set the components of a vec2 to the given values
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {Number} x X component
-	 * @param {Number} y Y component
-	 * @returns {vec2} out
-	 */
-	function set(out, x, y) {
-	    out[0] = x
-	    out[1] = y
-	    return out
-	}
-
-/***/ }),
-/* 177 */
-/***/ (function(module, exports) {
-
-	module.exports = add
-
-	/**
-	 * Adds two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function add(out, a, b) {
-	    out[0] = a[0] + b[0]
-	    out[1] = a[1] + b[1]
-	    return out
-	}
-
-/***/ }),
-/* 178 */
-/***/ (function(module, exports) {
-
-	module.exports = subtract
-
-	/**
-	 * Subtracts vector b from vector a
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function subtract(out, a, b) {
-	    out[0] = a[0] - b[0]
-	    out[1] = a[1] - b[1]
-	    return out
-	}
-
-/***/ }),
-/* 179 */
-/***/ (function(module, exports) {
-
-	module.exports = multiply
-
-	/**
-	 * Multiplies two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function multiply(out, a, b) {
-	    out[0] = a[0] * b[0]
-	    out[1] = a[1] * b[1]
-	    return out
-	}
-
-/***/ }),
-/* 180 */
-/***/ (function(module, exports) {
-
-	module.exports = divide
-
-	/**
-	 * Divides two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function divide(out, a, b) {
-	    out[0] = a[0] / b[0]
-	    out[1] = a[1] / b[1]
-	    return out
-	}
-
-/***/ }),
-/* 181 */
-/***/ (function(module, exports) {
-
-	module.exports = min
-
-	/**
-	 * Returns the minimum of two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function min(out, a, b) {
-	    out[0] = Math.min(a[0], b[0])
-	    out[1] = Math.min(a[1], b[1])
-	    return out
-	}
-
-/***/ }),
-/* 182 */
-/***/ (function(module, exports) {
-
-	module.exports = max
-
-	/**
-	 * Returns the maximum of two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec2} out
-	 */
-	function max(out, a, b) {
-	    out[0] = Math.max(a[0], b[0])
-	    out[1] = Math.max(a[1], b[1])
-	    return out
-	}
-
-/***/ }),
-/* 183 */
-/***/ (function(module, exports) {
-
-	module.exports = scale
-
-	/**
-	 * Scales a vec2 by a scalar number
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the vector to scale
-	 * @param {Number} b amount to scale the vector by
-	 * @returns {vec2} out
-	 */
-	function scale(out, a, b) {
-	    out[0] = a[0] * b
-	    out[1] = a[1] * b
-	    return out
-	}
-
-/***/ }),
-/* 184 */
-/***/ (function(module, exports) {
-
-	module.exports = scaleAndAdd
-
-	/**
-	 * Adds two vec2's after scaling the second operand by a scalar value
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @param {Number} scale the amount to scale b by before adding
-	 * @returns {vec2} out
-	 */
-	function scaleAndAdd(out, a, b, scale) {
-	    out[0] = a[0] + (b[0] * scale)
-	    out[1] = a[1] + (b[1] * scale)
-	    return out
-	}
-
-/***/ }),
-/* 185 */
-/***/ (function(module, exports) {
-
-	module.exports = distance
-
-	/**
-	 * Calculates the euclidian distance between two vec2's
-	 *
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {Number} distance between a and b
-	 */
-	function distance(a, b) {
-	    var x = b[0] - a[0],
-	        y = b[1] - a[1]
-	    return Math.sqrt(x*x + y*y)
-	}
-
-/***/ }),
-/* 186 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredDistance
-
-	/**
-	 * Calculates the squared euclidian distance between two vec2's
-	 *
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {Number} squared distance between a and b
-	 */
-	function squaredDistance(a, b) {
-	    var x = b[0] - a[0],
-	        y = b[1] - a[1]
-	    return x*x + y*y
-	}
-
-/***/ }),
-/* 187 */
-/***/ (function(module, exports) {
-
-	module.exports = length
-
-	/**
-	 * Calculates the length of a vec2
-	 *
-	 * @param {vec2} a vector to calculate length of
-	 * @returns {Number} length of a
-	 */
-	function length(a) {
-	    var x = a[0],
-	        y = a[1]
-	    return Math.sqrt(x*x + y*y)
-	}
-
-/***/ }),
-/* 188 */
-/***/ (function(module, exports) {
-
-	module.exports = squaredLength
-
-	/**
-	 * Calculates the squared length of a vec2
-	 *
-	 * @param {vec2} a vector to calculate squared length of
-	 * @returns {Number} squared length of a
-	 */
-	function squaredLength(a) {
-	    var x = a[0],
-	        y = a[1]
-	    return x*x + y*y
-	}
-
-/***/ }),
-/* 189 */
-/***/ (function(module, exports) {
-
-	module.exports = negate
-
-	/**
-	 * Negates the components of a vec2
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a vector to negate
-	 * @returns {vec2} out
-	 */
-	function negate(out, a) {
-	    out[0] = -a[0]
-	    out[1] = -a[1]
-	    return out
-	}
-
-/***/ }),
-/* 190 */
-/***/ (function(module, exports) {
-
-	module.exports = normalize
-
-	/**
-	 * Normalize a vec2
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a vector to normalize
-	 * @returns {vec2} out
-	 */
-	function normalize(out, a) {
-	    var x = a[0],
-	        y = a[1]
-	    var len = x*x + y*y
-	    if (len > 0) {
-	        //TODO: evaluate use of glm_invsqrt here?
-	        len = 1 / Math.sqrt(len)
-	        out[0] = a[0] * len
-	        out[1] = a[1] * len
-	    }
-	    return out
-	}
-
-/***/ }),
-/* 191 */
-/***/ (function(module, exports) {
-
-	module.exports = dot
-
-	/**
-	 * Calculates the dot product of two vec2's
-	 *
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {Number} dot product of a and b
-	 */
-	function dot(a, b) {
-	    return a[0] * b[0] + a[1] * b[1]
-	}
-
-/***/ }),
-/* 192 */
-/***/ (function(module, exports) {
-
-	module.exports = cross
-
-	/**
-	 * Computes the cross product of two vec2's
-	 * Note that the cross product must by definition produce a 3D vector
-	 *
-	 * @param {vec3} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @returns {vec3} out
-	 */
-	function cross(out, a, b) {
-	    var z = a[0] * b[1] - a[1] * b[0]
-	    out[0] = out[1] = 0
-	    out[2] = z
-	    return out
-	}
-
-/***/ }),
-/* 193 */
-/***/ (function(module, exports) {
-
-	module.exports = lerp
-
-	/**
-	 * Performs a linear interpolation between two vec2's
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the first operand
-	 * @param {vec2} b the second operand
-	 * @param {Number} t interpolation amount between the two inputs
-	 * @returns {vec2} out
-	 */
-	function lerp(out, a, b, t) {
-	    var ax = a[0],
-	        ay = a[1]
-	    out[0] = ax + t * (b[0] - ax)
-	    out[1] = ay + t * (b[1] - ay)
-	    return out
-	}
-
-/***/ }),
-/* 194 */
-/***/ (function(module, exports) {
-
-	module.exports = random
-
-	/**
-	 * Generates a random vector with the given scale
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
-	 * @returns {vec2} out
-	 */
-	function random(out, scale) {
-	    scale = scale || 1.0
-	    var r = Math.random() * 2.0 * Math.PI
-	    out[0] = Math.cos(r) * scale
-	    out[1] = Math.sin(r) * scale
-	    return out
-	}
-
-/***/ }),
-/* 195 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat2
-
-	/**
-	 * Transforms the vec2 with a mat2
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the vector to transform
-	 * @param {mat2} m matrix to transform with
-	 * @returns {vec2} out
-	 */
-	function transformMat2(out, a, m) {
-	    var x = a[0],
-	        y = a[1]
-	    out[0] = m[0] * x + m[2] * y
-	    out[1] = m[1] * x + m[3] * y
-	    return out
-	}
-
-/***/ }),
-/* 196 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat2d
-
-	/**
-	 * Transforms the vec2 with a mat2d
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the vector to transform
-	 * @param {mat2d} m matrix to transform with
-	 * @returns {vec2} out
-	 */
-	function transformMat2d(out, a, m) {
-	    var x = a[0],
-	        y = a[1]
-	    out[0] = m[0] * x + m[2] * y + m[4]
-	    out[1] = m[1] * x + m[3] * y + m[5]
-	    return out
-	}
-
-/***/ }),
-/* 197 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat3
-
-	/**
-	 * Transforms the vec2 with a mat3
-	 * 3rd vector component is implicitly '1'
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the vector to transform
-	 * @param {mat3} m matrix to transform with
-	 * @returns {vec2} out
-	 */
-	function transformMat3(out, a, m) {
-	    var x = a[0],
-	        y = a[1]
-	    out[0] = m[0] * x + m[3] * y + m[6]
-	    out[1] = m[1] * x + m[4] * y + m[7]
-	    return out
-	}
-
-/***/ }),
-/* 198 */
-/***/ (function(module, exports) {
-
-	module.exports = transformMat4
-
-	/**
-	 * Transforms the vec2 with a mat4
-	 * 3rd vector component is implicitly '0'
-	 * 4th vector component is implicitly '1'
-	 *
-	 * @param {vec2} out the receiving vector
-	 * @param {vec2} a the vector to transform
-	 * @param {mat4} m matrix to transform with
-	 * @returns {vec2} out
-	 */
-	function transformMat4(out, a, m) {
-	    var x = a[0], 
-	        y = a[1]
-	    out[0] = m[0] * x + m[4] * y + m[12]
-	    out[1] = m[1] * x + m[5] * y + m[13]
-	    return out
-	}
-
-/***/ }),
-/* 199 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = forEach
-
-	var vec = __webpack_require__(172)()
-
-	/**
-	 * Perform some operation over an array of vec2s.
-	 *
-	 * @param {Array} a the array of vectors to iterate over
-	 * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed
-	 * @param {Number} offset Number of elements to skip at the beginning of the array
-	 * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
-	 * @param {Function} fn Function to call for each vector in the array
-	 * @param {Object} [arg] additional argument to pass to fn
-	 * @returns {Array} a
-	 * @function
-	 */
-	function forEach(a, stride, offset, count, fn, arg) {
-	    var i, l
-	    if(!stride) {
-	        stride = 2
-	    }
-
-	    if(!offset) {
-	        offset = 0
-	    }
-	    
-	    if(count) {
-	        l = Math.min((count * stride) + offset, a.length)
-	    } else {
-	        l = a.length
-	    }
-
-	    for(i = offset; i < l; i += stride) {
-	        vec[0] = a[i]
-	        vec[1] = a[i+1]
-	        fn(vec, vec, arg)
-	        a[i] = vec[0]
-	        a[i+1] = vec[1]
-	    }
-	    
-	    return a
-	}
-
-/***/ }),
-/* 200 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerRenderer = __webpack_require__(201).registerRenderer;
-	var renderer = __webpack_require__(202);
-
-	/**
-	 * Create a new instance of class vglRenderer
-	 *
-	 * @class geo.gl.vglRenderer
-	 * @extends geo.renderer
-	 * @param canvas
-	 * @returns {geo.gl.vglRenderer}
-	 */
-	var vglRenderer = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof vglRenderer)) {
-	    return new vglRenderer(arg);
-	  }
-	  arg = arg || {};
-	  renderer.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var vgl = __webpack_require__(86);
-	  var mat4 = __webpack_require__(88);
-	  var util = __webpack_require__(83);
-	  var geo_event = __webpack_require__(9);
-
-	  var m_this = this,
-	      m_contextRenderer = null,
-	      m_viewer = null,
-	      m_width = 0,
-	      m_height = 0,
-	      m_lastZoom,
-	      m_updateCamera = false,
-	      s_init = this._init,
-	      s_exit = this._exit;
-
-	  // TODO: Move this API to the base class
-	  /**
-	   * Return width of the renderer
-	   */
-	  this.width = function () {
-	    return m_width;
-	  };
-
-	  /**
-	   * Return height of the renderer
-	   */
-	  this.height = function () {
-	    return m_height;
-	  };
-
-	  /**
-	   * Get context specific renderer
-	   */
-	  this.contextRenderer = function () {
-	    return m_contextRenderer;
-	  };
-
-	  /**
-	   * Get API used by the renderer
-	   */
-	  this.api = function () {
-	    return 'vgl';
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    if (m_this.initialized()) {
-	      return m_this;
-	    }
-
-	    s_init.call(m_this);
-
-	    var canvas = $(document.createElement('canvas'));
-	    canvas.addClass('webgl-canvas');
-	    $(m_this.layer().node().get(0)).append(canvas);
-
-	    if (window.contextPreserveDrawingBuffer) {
-	      var elem = canvas.get(0);
-	      var getContext = elem.getContext;
-	      elem.getContext = function (contextType, contextAttributes) {
-	        contextAttributes = contextAttributes || {};
-	        contextAttributes.preserveDrawingBuffer = true;
-	        return getContext.call(elem, contextType, contextAttributes);
-	      };
-	    }
-
-	    m_viewer = vgl.viewer(canvas.get(0), arg.options);
-	    m_viewer.init();
-	    m_contextRenderer = m_viewer.renderWindow().activeRenderer();
-	    m_contextRenderer.setResetScene(false);
-
-	    if (m_viewer.renderWindow().renderers().length > 0) {
-	      m_contextRenderer.setLayer(m_viewer.renderWindow().renderers().length);
-	    }
-	    m_this.canvas(canvas);
-	    /* Initialize the size of the renderer */
-	    var map = m_this.layer().map(),
-	        mapSize = map.size();
-	    m_this._resize(0, 0, mapSize.width, mapSize.height);
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Handle resize event
-	   */
-	  this._resize = function (x, y, w, h) {
-	    var renderWindow = m_viewer.renderWindow();
-
-	    m_width = w;
-	    m_height = h;
-	    m_this.canvas().attr('width', w);
-	    m_this.canvas().attr('height', h);
-	    renderWindow.positionAndResize(x, y, w, h);
-
-	    m_updateCamera = true;
-	    m_this._render();
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Render.  This actually schedules rendering for the next animation frame.
-	   */
-	  this._render = function () {
-	    /* If we are already scheduled to render, don't schedule again.  Rather,
-	     * mark that we should render after other animation frame requests occur.
-	     * It would be nice if we could just reschedule the call by removing and
-	     * readding the animation frame request, but this doesn't work for if the
-	     * reschedule occurs during another animation frame callback (it then waits
-	     * until a subsequent frame). */
-	    m_this.layer().map().scheduleAnimationFrame(this._renderFrame, true);
-	    return m_this;
-	  };
-
-	  /**
-	   * This clears the render timer and actually renders.
-	   */
-	  this._renderFrame = function () {
-	    if (m_updateCamera) {
-	      m_updateCamera = false;
-	      m_this._updateRendererCamera();
-	    }
-	    m_viewer.render();
-	  };
-
-	  /**
-	   * Exit
-	   */
-	  this._exit = function () {
-	    m_this.canvas().remove();
-	    m_viewer.exit();
-	    s_exit();
-	  };
-
-	  this._updateRendererCamera = function () {
-	    var renderWindow = m_viewer.renderWindow(),
-	        map = m_this.layer().map(),
-	        camera = map.camera(),
-	        rotation = map.rotation() || 0,
-	        view = camera.view,
-	        proj = camera.projectionMatrix;
-	    if (proj[15]) {
-	      /* we want positive z to be closer to the camera, but webGL does the
-	       * converse, so reverse the z coordinates. */
-	      proj = mat4.scale(util.mat4AsArray(), proj, [1, 1, -1]);
-	    }
-	    /* A similar kluge as in the base camera class worldToDisplay4.  With this,
-	     * we can show z values from 0 to 1. */
-	    proj = mat4.translate(util.mat4AsArray(), proj,
-	                          [0, 0, camera.constructor.bounds.far]);
-	    /* Check if the rotation is a multiple of 90 */
-	    var basis = Math.PI / 2,
-	        angle = rotation % basis,  // move to range (-pi/2, pi/2)
-	        ortho = (Math.min(Math.abs(angle), Math.abs(angle - basis)) < 0.00001);
-	    renderWindow.renderers().forEach(function (renderer) {
-	      var cam = renderer.camera();
-	      if (util.compareArrays(view, cam.viewMatrix()) &&
-	          util.compareArrays(proj, cam.projectionMatrix()) &&
-	          m_lastZoom === map.zoom()) {
-	        return;
-	      }
-	      m_lastZoom = map.zoom();
-	      cam.setViewMatrix(view, true);
-	      cam.setProjectionMatrix(proj);
-	      var viewport = camera.viewport;
-	      /* Test if we should align texels.  We won't if the projection matrix
-	       * is not simple, if there is a rotation that isn't a multiple of 90
-	       * degrees, if the viewport is not at an integer location, or if the zoom
-	       * level is not close to an integer.
-	       *   Note that the test for the viewport is strict (val % 1 is non-zero
-	       * if the value is not an integer), as, in general, the alignment is only
-	       * non-integral if a percent offset or calculation was used in css
-	       * somewhere.  The test for zoom level always has some allowance for
-	       * precision, as it is often the result of repeated computations. */
-	      if (proj[1] || proj[2] || proj[3] || proj[4] || proj[6] || proj[7] ||
-	          proj[8] || proj[9] || proj[11] || proj[15] !== 1 || !ortho ||
-	          (viewport.left && viewport.left % 1) ||
-	          (viewport.top && viewport.top % 1) ||
-	          (parseFloat(m_lastZoom.toFixed(6)) !==
-	           parseFloat(m_lastZoom.toFixed(0)))) {
-	        /* Don't align texels */
-	        cam.viewAlignment = function () {
-	          return null;
-	        };
-	      } else {
-	        /* Set information for texel alignment.  The rounding factors should
-	         * probably be divided by window.devicePixelRatio. */
-	        cam.viewAlignment = function () {
-	          var align = {
-	            roundx: 2.0 / viewport.width,
-	            roundy: 2.0 / viewport.height
-	          };
-	          align.dx = (viewport.width % 2) ? align.roundx * 0.5 : 0;
-	          align.dy = (viewport.height % 2) ? align.roundy * 0.5 : 0;
-	          return align;
-	        };
-	      }
-	    });
-	  };
-
-	  // Connect to pan event.  This is sufficient, as all zooms and rotations also
-	  // produce a pan
-	  m_this.layer().geoOn(geo_event.pan, function (evt) {
-	    void (evt);
-	    m_updateCamera = true;
-	  });
-
-	  // Connect to parallelprojection event
-	  m_this.layer().geoOn(geo_event.parallelprojection, function (evt) {
-	    var vglRenderer = m_this.contextRenderer(),
-	        camera,
-	        layer = m_this.layer();
-
-	    if (evt.geo && evt.geo._triggeredBy !== layer) {
-	      if (!vglRenderer || !vglRenderer.camera()) {
-	        console.log('Parallel projection event triggered on unconnected VGL ' +
-	                    'renderer.');
-	        return;
-	      }
-	      camera = vglRenderer.camera();
-	      camera.setEnableParallelProjection(evt.parallelProjection);
-	      m_updateCamera = true;
-	    }
-	  });
-
-	  return this;
-	};
-
-	inherit(vglRenderer, renderer);
-
-	registerRenderer('vgl', vglRenderer);
-
-	(function () {
-	  'use strict';
-
-	  var checkedWebGL;
-
-	  /**
-	   * Report if the vgl renderer is supported.  This is just a check if webGL is
-	   * supported and available.
-	   *
-	   * @returns {boolean} true if available.
-	   */
-	  vglRenderer.supported = function () {
-	    if (checkedWebGL === undefined) {
-	      /* This is extracted from what Modernizr uses. */
-	      var canvas, ctx, exts; // eslint-disable-line no-unused-vars
-	      try {
-	        canvas = document.createElement('canvas');
-	        ctx = (canvas.getContext('webgl') ||
-	               canvas.getContext('experimental-webgl'));
-	        exts = ctx.getSupportedExtensions();
-	        checkedWebGL = true;
-	      } catch (e) {
-	        console.error('No webGL support');
-	        checkedWebGL = false;
-	      }
-	      canvas = undefined;
-	      ctx = undefined;
-	      exts = undefined;
-	    }
-	    return checkedWebGL;
-	  };
-
-	  /**
-	   * If the vgl renderer is not supported, supply the name of a renderer that
-	   * should be used instead.  This asks for the null renderer.
-	   *
-	   * @returns null for the null renderer.
-	   */
-	  vglRenderer.fallback = function () {
-	    return null;
-	  };
-
-	})();
-
-	module.exports = vglRenderer;
-
-
-/***/ }),
-/* 201 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var widgets = {
-	  dom: {}
-	};
-	var layers = {};
-	var layerDefaultFeatures = {};
-	var renderers = {};
-	var features = {};
-	var featureCapabilities = {};
-	var fileReaders = {};
-	var rendererLayerAdjustments = {};
-	var annotations = {};
-	var util = {};
-
-	/**
-	 * Register a new file reader type
-	 */
-	util.registerFileReader = function (name, func) {
-	  fileReaders[name] = func;
-	};
-
-	/**
-	 * Create a new file reader
-	 */
-	util.createFileReader = function (name, opts) {
-	  if (fileReaders.hasOwnProperty(name)) {
-	    return fileReaders[name](opts);
-	  }
-	  return null;
-	};
-
-	/**
-	 * Register a new renderer type
-	 */
-	util.registerRenderer = function (name, func) {
-	  renderers[name] = func;
-	};
-
-	/**
-	 * Create new instance of the renderer
-	 */
-	util.createRenderer = function (name, layer, canvas, options) {
-	  if (renderers.hasOwnProperty(name)) {
-	    var ren = renderers[name](
-	      {layer: layer, canvas: canvas, options: options}
-	    );
-	    ren._init();
-	    return ren;
-	  }
-	  return null;
-	};
-
-	/**
-	 * Check if the named renderer is supported.  If not, display a warning and get
-	 * the name of a fallback renderer.  Ideally, we would pass a list of desired
-	 * features, and, if the renderer is unavailable, this would choose a fallback
-	 * that would support those features.
-	 *
-	 * @params {string|null} name name of the desired renderer
-	 * @params {boolean} noFallback if true, don't recommend a fallback
-	 * @return {string|null|false} the name of the renderer that should be used
-	 *      or false if no valid renderer can be determined.
-	 */
-	util.checkRenderer = function (name, noFallback) {
-	  if (name === null) {
-	    return name;
-	  }
-	  if (renderers.hasOwnProperty(name)) {
-	    var ren = renderers[name];
-	    if (!ren.supported || ren.supported()) {
-	      return name;
-	    }
-	    if (!ren.fallback || noFallback) {
-	      return false;
-	    }
-	    var fallback = util.checkRenderer(ren.fallback(), true);
-	    if (fallback !== false) {
-	      console.warn(name + ' renderer is unavailable, using ' + fallback +
-	                   ' renderer instead');
-	    }
-	    return fallback;
-	  }
-	  return false;
-	};
-
-	/**
-	 * Check if there is a renderer that is supported and supports a list of
-	 * features.  If not, display a warning.  This picks the first renderer that
-	 * supports all of the listed features.
-	 *
-	 * @param {array|undefined} featureList A list of features that will be used
-	 *      with this renderer.  Features are the basic feature names (e.g.,
-	 *      'quad'), or the feature name followed by a required capability (e.g.,
-	 *      'quad.image').  If more than one feature or more than one capability of
-	 *      a feature is required, include each feature and capability combination
-	 *      in the list (e.g., ['quad.image', 'plane']).  If no capability is
-	 *      specified for a feature (or that feature was registered without a
-	 *      capability object), then the feature will match regardless of
-	 *      capabilities.
-	 * @return {string|null|false} the name of the renderer that should be used
-	 *      or false if no valid renderer can be determined.
-	 */
-	util.rendererForFeatures = function (featureList) {
-	  var preferredRenderers = ['vgl', 'canvas', 'd3', null];
-
-	  var renderer, ridx, feature, fidx, capability, available;
-	  for (ridx = 0; ridx < preferredRenderers.length; ridx += 1) {
-	    renderer = preferredRenderers[ridx];
-	    if (util.checkRenderer(renderer, true) === false) {
-	      continue;
-	    }
-	    if (!featureList) {
-	      return renderer;
-	    }
-	    if (!features[renderer]) {
-	      continue;
-	    }
-	    available = true;
-	    for (fidx = 0; fidx < featureList.length; fidx += 1) {
-	      feature = featureList[fidx];
-	      capability = null;
-	      if (feature.indexOf('.') >= 0) {
-	        capability = feature;
-	        feature = feature.substr(0, feature.indexOf('.'));
-	      }
-	      if (features[renderer][feature] === undefined) {
-	        available = false;
-	        break;
-	      }
-	      if (capability && featureCapabilities[renderer][feature] &&
-	          !featureCapabilities[renderer][feature][capability]) {
-	        available = false;
-	        break;
-	      }
-	    }
-	    if (available) {
-	      return renderer;
-	    }
-	  }
-	  console.warn('There is no renderer available for the feature list "' +
-	               (featureList || []).join(', ') + '".');
-	  return false;
-	};
-
-	/**
-	 * Register a new feature type
-	 *
-	 * @param {string} category The feature category -- this is the renderer name.
-	 * @param {string} name The feature name
-	 * @param {function} func A function to call to create the feature.
-	 * @param {object|undefined} capabilities A map of capabilities that this
-	 *      feature supports.  If the feature is implemented with different
-	 *      capabilities in multiple categories (renderers), then the feature
-	 *      should expose a simple dictionary of supported and unsupported
-	 *      features.  For instance, the quad feature has color quads, image quads,
-	 *      and image quads that support full transformations.  The capabilities
-	 *      should be defined in the base feature in a capabilities object so that
-	 *      they can be referenced by that rather than an explicit string.
-	 * @returns {object} if this feature replaces an existing one, this was the
-	 *      feature that was replaced.  In this case, a warning is issued.
-	 */
-	util.registerFeature = function (category, name, func, capabilities) {
-	  if (!(category in features)) {
-	    features[category] = {};
-	    featureCapabilities[category] = {};
-	  }
-
-	  var old = features[category][name];
-	  if (old) {
-	    console.warn('The ' + category + '.' + name + ' feature is already registered');
-	  }
-	  features[category][name] = func;
-	  featureCapabilities[category][name] = capabilities;
-	  return old;
-	};
-
-	/**
-	 * Create new instance of a feature
-	 */
-	util.createFeature = function (name, layer, renderer, arg) {
-	  var category = renderer.api(),
-	      options = {'layer': layer, 'renderer': renderer};
-	  if (category in features && name in features[category]) {
-	    if (arg !== undefined) {
-	      $.extend(true, options, arg);
-	    }
-	    var feature = features[category][name](options);
-	    if (layer.gcs === undefined) {
-	      layer.gcs = function () {
-	        return layer.map().gcs();
-	      };
-	    }
-	    return feature;
-	  }
-	  return null;
-	};
-
-	/**
-	 * Register a layer adjustment.
-	 *
-	 * @returns {object} if this layer adjustment replaces an existing one, this
-	 *      was the value that was replaced.  In this case, a warning is issued.
-	 */
-	util.registerLayerAdjustment = function (category, name, func) {
-	  if (!(category in rendererLayerAdjustments)) {
-	    rendererLayerAdjustments[category] = {};
-	  }
-
-	  var old = rendererLayerAdjustments[category][name];
-	  if (old) {
-	    console.warn('The ' + category + '.' + name + ' layer adjustment is already registered');
-	  }
-	  rendererLayerAdjustments[category][name] = func;
-	  return old;
-	};
-
-	/**
-	 * If a layer needs to be adjusted based on the renderer, call the function
-	 * that adjusts it.
-	 *
-	 * @param {string} name Name of the layer.
-	 * @param {object} layer Instantiated layer object.
-	 */
-	util.adjustLayerForRenderer = function (name, layer) {
-	  var rendererName = layer.rendererName();
-	  if (rendererName) {
-	    if (rendererLayerAdjustments &&
-	        rendererLayerAdjustments[rendererName] &&
-	        rendererLayerAdjustments[rendererName][name]) {
-	      rendererLayerAdjustments[rendererName][name].apply(layer);
-	    }
-	  }
-	};
-
-	/**
-	 * Register a new layer type
-	 */
-	util.registerLayer = function (name, func, defaultFeatures) {
-	  layers[name] = func;
-	  layerDefaultFeatures[name] = defaultFeatures;
-	};
-
-	/**
-	 * Create new instance of the layer
-	 */
-	util.createLayer = function (name, map, arg) {
-	  // Default renderer is vgl
-	  var options = {map: map},
-	      layer = null;
-
-	  if (name in layers) {
-	    if (!arg.renderer && !arg.features && layerDefaultFeatures) {
-	      options.features = layerDefaultFeatures[name];
-	    }
-	    if (arg !== undefined) {
-	      $.extend(true, options, arg);
-	    }
-	    layer = layers[name](options);
-	    layer.layerName = name;
-	    layer._init();
-	    return layer;
-	  } else {
-	    return null;
-	  }
-	};
-
-	/**
-	 * Register a new widget type
-	 *
-	 * @returns {object} if this widget replaces an existing one, this was the
-	 *      value that was replaced.  In this case, a warning is issued.
-	 */
-	util.registerWidget = function (category, name, func) {
-	  if (!(category in widgets)) {
-	    widgets[category] = {};
-	  }
-
-	  var old = widgets[category][name];
-	  if (old) {
-	    console.warn('The ' + category + '.' + name + ' widget is already registered');
-	  }
-	  widgets[category][name] = func;
-	  return old;
-	};
-
-	/**
-	 * Create new instance of the widget
-	 */
-	util.createWidget = function (name, layer, arg) {
-	  var options = {
-	    layer: layer
-	  };
-
-	  if (name in widgets.dom) {
-	    if (arg !== undefined) {
-	      $.extend(true, options, arg);
-	    }
-
-	    return widgets.dom[name](options);
-	  }
-
-	  throw new Error('Cannot create unknown widget ' + name);
-	};
-
-	/**
-	 * Register a new annotation type
-	 *
-	 * @param {string} name The annotation name
-	 * @param {function} func A function to call to create the annotation.
-	 * @param {object|undefined} features A map of features that are used by this
-	 *      annotation.  Each key is a feature that is used.  If the value is true,
-	 *      the that feature is always needed.  If a list, then it is the set of
-	 *      annotation states for which that feature is required.  These can be
-	 *      used to pick an appropriate renderer when creating an annotation layer.
-	 * @returns {object} if this annotation replaces an existing one, this was the
-	 *      value that was replaced.  In this case, a warning is issued.
-	 */
-	util.registerAnnotation = function (name, func, features) {
-	  var old = annotations[name];
-	  if (old) {
-	    console.warn('The ' + name + ' annotation is already registered');
-	  }
-	  annotations[name] = {func: func, features: features || {}};
-	  return old;
-	};
-
-	/**
-	 * Create an annotation based on a registered type.
-	 *
-	 * @param {string} name The annotation name
-	 * @param {object} options The options for the annotation.
-	 * @returns {object} the new annotation.
-	 */
-	util.createAnnotation = function (name, options) {
-	  if (!annotations[name]) {
-	    console.warn('The ' + name + ' annotation is not registered');
-	    return;
-	  }
-	  var annotation = annotations[name].func(options);
-	  return annotation;
-	};
-
-	/**
-	 * Get a list of registered annotation types.
-	 *
-	 * @return {array} a list of registered annotations.
-	 */
-	util.listAnnotations = function () {
-	  return Object.keys(annotations);
-	};
-
-	/**
-	 * Get a list of required features for a set of annotations.
-	 *
-	 * @param {array|object|undefined} annotationList A list of annotations that
-	 *   will be used.  Instead of a list, if this is an object, the keys are the
-	 *   annotation names, and the values are each a list of modes that will be
-	 *   used with that annotation.  For example, ['polygon', 'rectangle'] lists
-	 *   features required to show those annotations in any mode,  whereas
-	 *   {polygon: [annotationState.done], rectangle: [annotationState.done]} only
-	 *   lists features that are needed to show the completed annotations.
-	 * @return {array} a list of features needed for the specified annotations.
-	 *   There may be duplicates in the list.
-	 */
-	util.featuresForAnnotations = function (annotationList) {
-	  var features = [];
-
-	  var annList = Array.isArray(annotationList) ? annotationList : Object.keys(annotationList);
-	  annList.forEach(function (ann) {
-	    if (!annotations[ann]) {
-	      return;
-	    }
-	    Object.keys(annotations[ann].features).forEach(function (feature) {
-	      if (Array.isArray(annotationList) || annotationList[ann] === true ||
-	          !Array.isArray(annotations[ann].features[feature])) {
-	        features.push(feature);
-	      } else {
-	        annotationList[ann].forEach(function (state) {
-	          if ($.inArray(state, annotations[ann].features[feature]) >= 0) {
-	            features.push(feature);
-	          }
-	        });
-	      }
-	    });
-	  });
-	  return features;
-	};
-
-	/**
-	 * Check if there is a renderer that is supported and supports a list of
-	 * annotations.  If not, display a warning.  This generates a list of required
-	 * features, then picks the first renderer that supports all of these features.
-	 *
-	 * @param {array|object|undefined} annotationList A list of annotations that
-	 *   will be used with this renderer.  Instead of a list, if this is an object,
-	 *   the keys are the annotation names, and the values are each a list of modes
-	 *   that will be used with that annotation.  See featuresForAnnotations for
-	 *   more details.
-	 * @return {string|null|false} the name of the renderer that should be used or
-	 *   false if no valid renderer can be determined.
-	 */
-	util.rendererForAnnotations = function (annotationList) {
-	  return util.rendererForFeatures(util.featuresForAnnotations(annotationList));
-	};
-
-	module.exports = util;
-
-
-/***/ }),
-/* 202 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var object = __webpack_require__(203);
-
-	/**
-	 * Create a new instance of class renderer
-	 *
-	 * @class geo.renderer
-	 * @extends geo.object
-	 * @returns {geo.renderer}
-	 */
-	var renderer = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof renderer)) {
-	    return new renderer(arg);
-	  }
-	  object.call(this);
-
-	  arg = arg || {};
-	  var m_this = this,
-	      m_layer = arg.layer === undefined ? null : arg.layer,
-	      m_canvas = arg.canvas === undefined ? null : arg.canvas,
-	      m_initialized = false;
-
-	  /**
-	   * Get layer of the renderer
-	   *
-	   * @returns {*}
-	   */
-	  this.layer = function () {
-	    return m_layer;
-	  };
-
-	  /**
-	   * Get canvas for the renderer
-	   */
-	  this.canvas = function (val) {
-	    if (val === undefined) {
-	      return m_canvas;
-	    } else {
-	      m_canvas = val;
-	      m_this.modified();
-	    }
-	  };
-
-	  /**
-	   * Get map that this renderer belongs to
-	   */
-	  this.map = function () {
-	    if (m_layer) {
-	      return m_layer.map();
-	    } else {
-	      return null;
-	    }
-	  };
-
-	  /**
-	   * Get/Set if renderer has been initialized
-	   */
-	  this.initialized = function (val) {
-	    if (val === undefined) {
-	      return m_initialized;
-	    } else {
-	      m_initialized = val;
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get render API used by the renderer
-	   */
-	  this.api = function () {
-	    throw new Error('Should be implemented by derived classes');
-	  };
-
-	  /**
-	   * Reset to default
-	   */
-	  this.reset = function () {
-	    return true;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	  };
-
-	  /**
-	   * Handle resize event
-	   */
-	  this._resize = function () {
-	  };
-
-	  /**
-	   * Render
-	   */
-	  this._render = function () {
-	  };
-
-	  return this;
-	};
-
-	inherit(renderer, object);
-	module.exports = renderer;
-
-
-/***/ }),
-/* 203 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var vgl = __webpack_require__(86);
-	var inherit = __webpack_require__(8);
-
-	/**
-	 * Create a new instance of class object
-	 *
-	 * @class
-	 * @alias geo.object
-	 * @extends vgl.object
-	 * @returns {geo.object}
-	 */
-	var object = function () {
-	  'use strict';
-	  if (!(this instanceof object)) {
-	    return new object();
-	  }
-
-	  var m_this = this,
-	      m_eventHandlers = {},
-	      m_idleHandlers = [],
-	      m_promiseCount = 0;
-
-	  /**
-	   *  Bind a handler that will be called once when all internal promises are
-	   *  resolved.
-	   *
-	   *  @param {function} handler A function taking no arguments.
-	   *  @returns {this}
-	   */
-	  this.onIdle = function (handler) {
-	    if (m_promiseCount) {
-	      m_idleHandlers.push(handler);
-	    } else {
-	      handler();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   *  Add a new promise object preventing idle event handlers from being called
-	   *  until it is resolved.
-	   *
-	   *  @param {Promise} promise A promise object.
-	   *  @returns {this}
-	   */
-	  this.addPromise = function (promise) {
-	    // called on any resolution of the promise
-	    function onDone() {
-	      m_promiseCount -= 1;
-	      if (!m_promiseCount) {
-	        m_idleHandlers.splice(0, m_idleHandlers.length)
-	          .forEach(function (handler) {
-	            handler();
-	          });
-	      }
-	    }
-	    m_promiseCount += 1;
-	    promise.then(onDone, onDone);
-	    return m_this;
-	  };
-
-	  /**
-	   *  Bind an event handler to this object.
-	   *
-	   *  @param {string} event An event from {@link geo.event} or a user-defined
-	   *    value.
-	   *  @param {function} handler A function that is called when `event` is
-	   *    triggered.  The function is passed a {@link geo.event} object.
-	   *  @returns {this}
-	   */
-	  this.geoOn = function (event, handler) {
-	    if (Array.isArray(event)) {
-	      event.forEach(function (e) {
-	        m_this.geoOn(e, handler);
-	      });
-	      return m_this;
-	    }
-	    if (!m_eventHandlers.hasOwnProperty(event)) {
-	      m_eventHandlers[event] = [];
-	    }
-	    m_eventHandlers[event].push(handler);
-	    return m_this;
-	  };
-
-	  /**
-	   *  Trigger an event (or events) on this object and call all handlers.
-	   *
-	   *  @param {string|string[]} event An event or list of events from
-	   *        {@link geo.event} or defined by the user.
-	   *  @param {object} [args] Additional information to add to the
-	   *    {@link geo.event} object passed to the handlers.
-	   *  @returns {this}
-	   */
-	  this.geoTrigger = function (event, args) {
-
-	    // if we have an array of events, recall with single events
-	    if (Array.isArray(event)) {
-	      event.forEach(function (e) {
-	        m_this.geoTrigger(e, args);
-	      });
-	      return m_this;
-	    }
-
-	    // append the event type to the argument object
-	    args = args || {};
-	    args.event = event;
-
-	    if (m_eventHandlers.hasOwnProperty(event)) {
-	      m_eventHandlers[event].forEach(function (handler) {
-	        handler.call(m_this, args);
-	      });
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   *  Remove handlers from one event or an array of events.  If no event is
-	   *  provided all handlers will be removed.
-	   *
-	   *  @param {string|string[]} [event] An event or a list of events from
-	   *        {@link geo.event} or defined by the user, or `undefined` to remove
-	   *        all events (in which case `arg` is ignored).
-	   *  @param {(function|function[])?} [arg] A function or array of functions to
-	   *        remove from the events or a falsey value to remove all handlers
-	   *        from the events.
-	   */
-	  this.geoOff = function (event, arg) {
-	    if (event === undefined) {
-	      m_eventHandlers = {};
-	      m_idleHandlers = [];
-	      m_promiseCount = 0;
-	    }
-	    if (Array.isArray(event)) {
-	      event.forEach(function (e) {
-	        m_this.geoOff(e, arg);
-	      });
-	      return m_this;
-	    }
-	    if (!arg) {
-	      m_eventHandlers[event] = [];
-	    } else if (Array.isArray(arg)) {
-	      arg.forEach(function (handler) {
-	        m_this.geoOff(event, handler);
-	      });
-	      return m_this;
-	    }
-	    if (m_eventHandlers.hasOwnProperty(event)) {
-	      m_eventHandlers[event] = m_eventHandlers[event].filter(function (f) {
-	        return f !== arg;
-	      }
-	      );
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Free all resources and destroy the object.
-	   */
-	  this._exit = function () {
-	    m_this.geoOff();
-	  };
-
-	  vgl.object.call(this);
-
-	  return this;
-	};
-
-	inherit(object, vgl.object);
-	module.exports = object;
-
-
-/***/ }),
-/* 204 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/*
-	markercluster plugin:
-
-	Copyright 2012 David Leaver
-
-	Permission is hereby granted, free of charge, to any person obtaining
-	a copy of this software and associated documentation files (the
-	"Software"), to deal in the Software without restriction, including
-	without limitation the rights to use, copy, modify, merge, publish,
-	distribute, sublicense, and/or sell copies of the Software, and to
-	permit persons to whom the Software is furnished to do so, subject to
-	the following conditions:
-
-	The above copyright notice and this permission notice shall be
-	included in all copies or substantial portions of the Software.
-
-	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-	Leaflet utilities:
-
-	Copyright (c) 2010-2015, Vladimir Agafonkin
-	Copyright (c) 2010-2011, CloudMade
-	All rights reserved.
-
-	Redistribution and use in source and binary forms, with or without modification, are
-	permitted provided that the following conditions are met:
-
-	   1. Redistributions of source code must retain the above copyright notice, this list of
-	      conditions and the following disclaimer.
-
-	   2. Redistributions in binary form must reproduce the above copyright notice, this list
-	      of conditions and the following disclaimer in the documentation and/or other
-	      materials provided with the distribution.
-
-	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
-	EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-	MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-	COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-	EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-	HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
-	TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-	*/
-
-	/**
-	 * Code taken from https://github.com/Leaflet/Leaflet.markercluster
-	 * to support faster hierarchical clustering of features.
-	 * @copyright 2012, David Leaver
-	 */
-
-	var $ = __webpack_require__(1);
-	var L = {};
-	L.Util = {
-	    // return unique ID of an object
-	    stamp: function (obj) {
-	        obj._leaflet_id = obj._leaflet_id || ++L.Util.lastId;
-	        return obj._leaflet_id;
-	    },
-	    lastId: 0
-	};
-
-	/**
-	 * @class
-	 * @alias geo.util.DistanceGrid
-	 */
-	var DistanceGrid = function (cellSize) {
-	    this._cellSize = cellSize;
-	    this._sqCellSize = cellSize * cellSize;
-	    this._grid = {};
-	    this._objectPoint = {};
-	};
-
-	DistanceGrid.prototype = {
-
-	    addObject: function (obj, point) {
-	        var x = this._getCoord(point.x),
-	            y = this._getCoord(point.y),
-	            grid = this._grid,
-	            row = grid[y] = grid[y] || {},
-	            cell = row[x] = row[x] || [],
-	            stamp = L.Util.stamp(obj);
-
-	        point.obj = obj;
-	        this._objectPoint[stamp] = point;
-
-	        cell.push(obj);
-	    },
-
-	    updateObject: function (obj, point) {
-	        this.removeObject(obj);
-	        this.addObject(obj, point);
-	    },
-
-	    //Returns true if the object was found
-	    removeObject: function (obj, point) {
-	        var x = this._getCoord(point.x),
-	            y = this._getCoord(point.y),
-	            grid = this._grid,
-	            row = grid[y] = grid[y] || {},
-	            cell = row[x] = row[x] || [],
-	            i, len;
-
-	        delete this._objectPoint[L.Util.stamp(obj)];
-
-	        for (i = 0, len = cell.length; i < len; i++) {
-	            if (cell[i] === obj) {
-
-	                cell.splice(i, 1);
-
-	                if (len === 1) {
-	                    delete row[x];
-	                }
-
-	                return true;
-	            }
-	        }
-
-	    },
-
-	    eachObject: function (fn, context) {
-	        var i, j, k, len, row, cell, removed,
-	            grid = this._grid;
-
-	        for (i in grid) {
-	            row = grid[i];
-
-	            for (j in row) {
-	                cell = row[j];
-
-	                for (k = 0, len = cell.length; k < len; k++) {
-	                    removed = fn.call(context, cell[k]);
-	                    if (removed) {
-	                        k--;
-	                        len--;
-	                    }
-	                }
-	            }
-	        }
-	    },
-
-	    getNearObject: function (point) {
-	        var x = this._getCoord(point.x),
-	            y = this._getCoord(point.y),
-	            i, j, k, row, cell, len, obj, dist,
-	            objectPoint = this._objectPoint,
-	            closestDistSq = this._sqCellSize,
-	            closest = null;
-
-	        for (i = y - 1; i <= y + 1; i++) {
-	            row = this._grid[i];
-	            if (row) {
-
-	                for (j = x - 1; j <= x + 1; j++) {
-	                    cell = row[j];
-	                    if (cell) {
-
-	                        for (k = 0, len = cell.length; k < len; k++) {
-	                            obj = cell[k];
-	                            dist = this._sqDist(
-	                                objectPoint[L.Util.stamp(obj)],
-	                                point
-	                            );
-	                            if (dist < closestDistSq) {
-	                                closestDistSq = dist;
-	                                closest = obj;
-	                            }
-	                        }
-	                    }
-	                }
-	            }
-	        }
-	        return closest;
-	    },
-
-	    /* return the point coordinates contained in the structure */
-	    contents: function () {
-	        return $.map(this._objectPoint, function (val) { return val; });
-	    },
-
-	    _getCoord: function (x) {
-	        return Math.floor(x / this._cellSize);
-	    },
-
-	    _sqDist: function (p, p2) {
-	        var dx = p2.x - p.x,
-	            dy = p2.y - p.y;
-	        return dx * dx + dy * dy;
-	    }
-	};
-
-	module.exports = DistanceGrid;
-
-
-/***/ }),
-/* 205 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/**
-	 * Using methods adapted from leaflet to cluster an array of positions
-	 * hierarchically given an array of length scales (zoom levels).
-	 */
-
-	var $ = __webpack_require__(1);
-	var vgl = __webpack_require__(86);
-
-	/**
-	 * This class manages a group of nearby points that are clustered as a
-	 * single object for display purposes.  The class constructor is private
-	 * and only meant to be created by the ClusterGroup object.
-	 *
-	 * This is a tree-like data structure.  Each node in the tree is a
-	 * cluster containing child clusters and unclustered points.
-	 *
-	 * @class
-	 * @private
-	 *
-	 * @param {geo.util.ClusterGroup} group The source cluster group
-	 * @param {number} zoom The zoom level of the current node
-	 * @param {object[]} children An array of ClusterTrees or point objects
-	 */
-	function ClusterTree(group, zoom, children) {
-	  this._group = group;
-	  this._zoom = zoom;
-	  this._points = [];     // Unclustered points
-	  this._clusters = [];   // Child clusters
-	  this._count = 0;       // Total number of points
-	  this._parent = null;
-	  this._coord = null;    // The cached coordinates
-	  var that = this;
-
-	  // add the children provided in the constructor call
-	  (children || []).forEach(function (c) {
-	    that._add(c);
-	  });
-	}
-
-	/**
-	 * Add a point or cluster as a child to the current cluster.
-	 * @param {object} pt A ClusterTree or point object
-	 * @private
-	 */
-	ClusterTree.prototype._add = function (pt) {
-	  var inc = 1;
-
-	  if (pt instanceof ClusterTree) {
-	    // add a child cluster
-	    this._clusters.push(pt);
-	    inc = pt._count;
-	  } else {
-	    this._points.push(pt);
-	  }
-	  pt._parent = this;
-
-	  // increment the counter
-	  this._increment(inc);
-	};
-
-	/**
-	 * Increment the child counter for this and the parent.
-	 * @param {number} inc The value to increment by
-	 * @private
-	 */
-	ClusterTree.prototype._increment = function (inc) {
-	  this._coord = null;
-	  this._count += inc;
-	  if (this._parent) {
-	    this._parent._increment(inc);
-	  }
-	};
-
-	/**
-	 * Return the total number of child points contained in the cluster.
-	 * @returns {number} Total points contained
-	 */
-	ClusterTree.prototype.count = function () {
-	  return this._count;
-	};
-
-	/**
-	 * Recursively call a function on all points contained in the cluster.
-	 * Calls the function with `this` as the current ClusterTree object, and
-	 * arguments to arguments the point object and the zoom level:
-	 *   func.call(this, point, zoom)
-	 */
-	ClusterTree.prototype.each = function (func) {
-	  var i;
-	  for (i = 0; i < this._points.length; i += 1) {
-	    func.call(this, this._points[i], this._zoom);
-	  }
-	  for (i = 0; i < this._clusters.length; i += 1) {
-	    this._clusters[i].each.call(
-	      this._clusters[i],
-	      func
-	    );
-	  }
-	};
-
-	/**
-	 * Get the coordinates of the cluster (the mean position of all the points
-	 * contained).  This is lazily calculated and cached.
-	 */
-	ClusterTree.prototype.coords = function () {
-	  var i, center = {x: 0, y: 0};
-	  if (this._coord) {
-	    return this._coord;
-	  }
-	  // first add up the points at the node
-	  for (i = 0; i < this._points.length; i += 1) {
-	    center.x += this._points[i].x;
-	    center.y += this._points[i].y;
-	  }
-
-	  // add up the contribution from the clusters
-	  for (i = 0; i < this._clusters.length; i += 1) {
-	    center.x += this._clusters[i].coords().x * this._clusters[i].count();
-	    center.y += this._clusters[i].coords().y * this._clusters[i].count();
-	  }
-
-	  return {
-	    x: center.x / this.count(),
-	    y: center.y / this.count()
-	  };
-	};
-
-	/**
-	 * This class manages clustering of an array of positions hierarchically.
-	 * The algorithm and code was adapted from the Leaflet marker cluster
-	 * plugin by David Leaver: https://github.com/Leaflet/Leaflet.markercluster
-	 *
-	 * @class
-	 * @alias geo.util.ClusterGroup
-	 * @param {object} opts An options object
-	 * @param {number} width The width of the window; used for scaling.
-	 * @param {number} height The height of the window; used for scaling.
-	 * @param {number} maxZoom The maximimum zoom level to calculate
-	 * @param {number} radius Proportional to the clustering radius in pixels
-	 */
-	function C(opts, width, height) {
-
-	  var DistanceGrid = __webpack_require__(204);
-
-	  // store the options
-	  this._opts = $.extend({
-	    maxZoom: 18,
-	    radius: 0.05
-	  }, opts);
-	  this._opts.width = this._opts.width || width || 256;
-	  this._opts.height = this._opts.height || height || 256;
-
-	  // generate the initial datastructures
-	  this._clusters = {}; // clusters at each zoom level
-	  this._points = {};   // unclustered points at each zoom level
-
-	  var zoom, scl;
-	  for (zoom = this._opts.maxZoom; zoom >= 0; zoom -= 1) {
-	    scl = this._scaleAtLevel(zoom, this._opts.width, this._opts.height);
-	    this._clusters[zoom] = new DistanceGrid(scl);
-	    this._points[zoom] = new DistanceGrid(scl);
-	  }
-	  this._topClusterLevel = new ClusterTree(this, -1);
-	}
-
-	/**
-	 * Returns a characteristic distance scale at a particular zoom level.  This
-	 * scale is used to control the clustering radius.  When the renderer supports
-	 * it, this call should be replaced by a calculation involving the view port
-	 * size in point coordinates at a particular zoom level.
-	 * @private
-	 */
-	C.prototype._scaleAtLevel = function (zoom, width, height) {
-	  return vgl.zoomToHeight(zoom, width, height) / 2 * this._opts.radius;
-	};
-
-	/**
-	 * Add a position to the cluster group.
-	 * @protected
-	 */
-	C.prototype.addPoint = function (point) {
-	  var zoom, closest, parent, newCluster, lastParent, z;
-	  /*
-	   * start at the maximum zoom level and search for nearby
-	   *
-	   * 1.  existing clusters
-	   * 2.  unclustered points
-	   *
-	   * otherwise add the point as a new unclustered point
-	   */
-	  for (zoom = this._opts.maxZoom; zoom >= 0; zoom -= 1) {
-
-	    // find near cluster
-	    closest = this._clusters[zoom].getNearObject(point);
-	    if (closest) {
-	      // add the point to the cluster and return
-	      closest._add(point);
-	      return;
-	    }
-
-	    // find near point
-	    closest = this._points[zoom].getNearObject(point);
-	    if (closest) {
-	      parent = closest._parent;
-	      if (parent) {
-	        // remove the point from the parent
-	        for (z = parent._points.length - 1; z >= 0; z -= 1) {
-	          if (parent._points[z] === closest) {
-	            parent._points.splice(z, 1);
-	            parent._increment(-1);
-	            break;
-	          }
-	        }
-	      }
-
-	      if (!parent) {
-	        $.noop();
-	      }
-	      // create a new cluster with these two points
-	      newCluster = new ClusterTree(this, zoom, [closest, point]);
-	      this._clusters[zoom].addObject(newCluster, newCluster.coords());
-
-	      // create intermediate parent clusters that don't exist
-	      lastParent = newCluster;
-	      for (z = zoom - 1; z > parent._zoom; z -= 1) {
-	        lastParent = new ClusterTree(this, z, [lastParent]);
-	        this._clusters[z].addObject(lastParent, lastParent.coords());
-	      }
-	      parent._add(lastParent);
-
-	      // remove closest from this zoom level and any above (replace with newCluster)
-	      for (z = zoom; z >= 0; z -= 1) {
-	        if (!this._points[z].removeObject(closest, closest)) {
-	          break;
-	        }
-	      }
-
-	      return;
-	    }
-
-	    // add an unclustered point
-	    this._points[zoom].addObject(point, point);
-	  }
-
-	  // otherwise add to the top
-	  this._topClusterLevel._add(point);
-	};
-
-	/**
-	 * Return the unclustered points contained at a given zoom level.
-	 * @param {number} zoom The zoom level
-	 * @return {object[]} The array of unclustered points
-	 */
-	C.prototype.points = function (zoom) {
-	  zoom = Math.min(Math.max(Math.floor(zoom), 0), this._opts.maxZoom - 1);
-	  return this._points[Math.floor(zoom)].contents();
-	};
-
-	/**
-	 * Return the clusters contained at a given zoom level.
-	 * @param {number} zoom The zoom level
-	 * @return {ClusterTree[]} The array of clusters
-	 */
-	C.prototype.clusters = function (zoom) {
-	  zoom = Math.min(Math.max(Math.floor(zoom), 0), this._opts.maxZoom - 1);
-	  return this._clusters[Math.floor(zoom)].contents();
-	};
-
-	module.exports = C;
-
-
-/***/ }),
-/* 206 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-	var timestamp = __webpack_require__(209);
-	var transform = __webpack_require__(11);
-
-	/**
-	 * Create a new instance of class lineFeature
-	 *
-	 * @class geo.lineFeature
-	 * @extends geo.feature
-	 * @param {Object|Function} [arg.position] Position of the data.  Default is
-	 *   (data).
-	 * @param {Object|Function} [arg.line] Lines from the data.  Default is (data).
-	 *   Typically, the data is an array of lines, each of which is an array of
-	 *   points.  Only lines that have at least two points are rendered.  The
-	 *   position function is called for each point as position(linePoint,
-	 *   pointIndex, lineEntry, lineEntryIndex).
-	 * @param {boolean} [arg.selectionAPI=false] True to send selection events on
-	 *   mouse move, click, etc.
-	 * @param {boolean} [arg.visible=true] True to show this feature.
-	 * @param {Object} [arg.style] Style object with default style options.
-	 * @param {Object|Function} [arg.style.strokeColor] Color to stroke each
-	 *   line.  The color can vary by point.  Colors can be css names or hex
-	 *   values, or an object with r, g, b on a [0-1] scale.
-	 * @param {number|Function} [arg.style.strokeOpacity] Opacity for each line
-	 *   stroke.  The opacity can vary by point.  Opacity is on a [0-1] scale.
-	 * @param {number|Function} [arg.style.strokeWidth] The weight of the line
-	 *   stroke in pixels.  The width can vary by point.
-	 * @param {number|Function} [arg.style.strokeOffset] This is a value from -1
-	 *   (left) to 1 (right), with 0 being centered.  This can vary by point.
-	 * @param {string|Function} [arg.style.lineCap] One of 'butt' (default),
-	 *   'square', or 'round'.  This can vary by point.
-	 * @param {string|Function} [arg.style.lineJoin] One of 'miter' (default),
-	 *   'bevel', 'round', or 'miter-clip'.  This can vary by point.
-	 * @param {number|Function} [arg.style.closed] If true and the renderer
-	 *   supports it, connect the first and last points of a line if the line has
-	 *   more than two points.  This applies per line (if a function, it is called
-	 *   with (lineEntry, lineEntryIndex).
-	 * @param {number|Function} [arg.style.miterLimit] For lines of more than two
-	 *   segments that are mitered, if the miter length exceeds the strokeWidth
-	 *   divided by the sine of half the angle between segments, then a bevel join
-	 *   is used instead.  This is a single value that applies to all lines.  If a
-	 *   function, it is called with (data).
-	 * @param {string|Function} [arg.style.antialiasing] Antialiasing distance in
-	 *   pixels.  Values must be non-negative.  A value greater than 1 will produce
-	 *   a visible gradient.  This is a single value that applies to all lines.
-	 * @param {string|Function} [arg.style.debug] If 'debug', render lines in debug
-	 *   mode.  This is a single value that applies to all lines.
-	 * @returns {geo.lineFeature}
-	 */
-	var lineFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof lineFeature)) {
-	    return new lineFeature(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      m_pointSearchTime = timestamp(),
-	      m_pointSearchInfo;
-
-	  this.featureType = 'line';
-	  this._subfeatureStyles = {
-	    lineCap: true,
-	    lineJoin: true,
-	    strokeColor: true,
-	    strokeOffset: true,
-	    strokeOpacity: true,
-	    strokeWidth: true
-	  };
-
-	  /**
-	   * Get/Set line accessor
-	   *
-	   * @returns {geo.pointFeature}
-	   */
-	  this.line = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('line');
-	    } else {
-	      m_this.style('line', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set position accessor
-	   *
-	   * @returns {geo.pointFeature}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else {
-	      m_this.style('position', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Cache information needed for point searches.
-	   */
-	  this._updatePointSearchInfo = function () {
-	    if (m_pointSearchTime.getMTime() >= m_this.dataTime().getMTime() &&
-	        m_pointSearchTime.getMTime() >= m_this.getMTime()) {
-	      return;
-	    }
-	    m_pointSearchTime.modified();
-	    m_pointSearchInfo = [];
-	    var data = m_this.data(),
-	        line = m_this.line(),
-	        widthFunc = m_this.style.get('strokeWidth'),
-	        posFunc = m_this.position(),
-	        closedFunc = m_this.style.get('closed'),
-	        gcs = m_this.gcs(),
-	        mapgcs = m_this.layer().map().gcs();
-
-	    data.forEach(function (d, index) {
-	      var closed = closedFunc(d, index),
-	          last, lastr2, first, record = [];
-
-	      line(d, index).forEach(function (current, j) {
-	        var p = posFunc(current, j, d, index);
-	        if (gcs !== mapgcs) {
-	          p = transform.transformCoordinates(gcs, mapgcs, p);
-	        }
-	        var r = Math.ceil(widthFunc(current, j, d, index) / 2) + 2;
-	        var r2 = r * r;
-	        if (last) {
-	          record.push({u: p, v: last, r2: lastr2 > r2 ? lastr2 : r2});
-	        }
-	        last = p;
-	        lastr2 = r2;
-	        if (!first && closed) {
-	          first = {p: p, r2: r2};
-	        }
-	        if (closed && last.x !== first.p.x && last.y !== first.p.y) {
-	          record.push({u: last, v: first.p, r2: lastr2 > first.r2 ? lastr2 : first.r2});
-	        }
-	      });
-	      m_pointSearchInfo.push(record);
-	    });
-	    return m_pointSearchInfo;
-	  };
-
-	  /**
-	   * Returns an array of datum indices that contain the given point.
-	   * This is a slow implementation with runtime order of the number of
-	   * vertices.  A point is considered on a line segment if it is close to the
-	   * line or either end point.  Closeness is based on the maximum width of the
-	   * line segement, and is ceil(maxwidth / 2) + 2 pixels.  This means that
-	   * corner extensions due to mitering may be outside of the selection area and
-	   * that variable width lines will have a greater selection region than their
-	   * visual size at the narrow end.
-	   */
-	  this.pointSearch = function (p) {
-	    var data = m_this.data(), indices = [], found = [];
-	    if (!data || !data.length || !m_this.layer()) {
-	      return {
-	        found: found,
-	        index: indices
-	      };
-	    }
-	    this._updatePointSearchInfo();
-	    var map = m_this.layer().map(),
-	        scale = map.unitsPerPixel(map.zoom()),
-	        scale2 = scale * scale,
-	        pt = transform.transformCoordinates(m_this.gcs(), map.gcs(), p),
-	        i, j, record;
-
-	    // minimum l2 distance squared from
-	    // q -> line(u, v)
-	    function lineDist2(q, u, v) {
-	      var t, vux = v.x - u.x, vuy = v.y - u.y, l2 = vux * vux + vuy * vuy;
-
-	      if (l2 < 1) {
-	        // u, v are within 1 pixel
-	        return dist2(q, u);
-	      }
-
-	      t = ((q.x - u.x) * vux + (q.y - u.y) * vuy) / l2;
-	      if (t < 0) { return dist2(q, u); }
-	      if (t > 1) { return dist2(q, v); }
-	      return dist2(q, {x: u.x + t * vux, y: u.y + t * vuy});
-	    }
-
-	    // l2 distance squared from u to v
-	    function dist2(u, v) {
-	      var dx = u.x - v.x,
-	          dy = u.y - v.y;
-	      return dx * dx + dy * dy;
-	    }
-
-	    for (i = 0; i < m_pointSearchInfo.length; i += 1) {
-	      record = m_pointSearchInfo[i];
-	      for (j = 0; j < record.length; j += 1) {
-	        if (lineDist2(pt, record[j].u, record[j].v) <= record[j].r2 * scale2) {
-	          found.push(data[i]);
-	          indices.push(i);
-	          break;
-	        }
-	      }
-	    }
-	    return {
-	      found: found,
-	      index: indices
-	    };
-	  };
-
-	  /**
-	   * Returns an array of line indices that are contained in the given box.
-	   */
-	  this.boxSearch = function (lowerLeft, upperRight, opts) {
-	    var pos = m_this.position(),
-	        idx = [],
-	        line = m_this.line();
-
-	    opts = opts || {};
-	    opts.partial = opts.partial || false;
-	    if (opts.partial) {
-	      throw new Error('Unimplemented query method.');
-	    }
-
-	    m_this.data().forEach(function (d, i) {
-	      var inside = true;
-	      line(d, i).forEach(function (e, j) {
-	        if (!inside) { return; }
-	        var p = pos(e, j, d, i);
-	        if (!(p.x >= lowerLeft.x &&
-	              p.x <= upperRight.x &&
-	              p.y >= lowerLeft.y &&
-	              p.y <= upperRight.y)
-	        ) {
-	          inside = false;
-	        }
-	      });
-	      if (inside) {
-	        idx.push(i);
-	      }
-	    });
-	    return idx;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        strokeWidth: 1.0,
-	        // Default to gold color for lines
-	        strokeColor: { r: 1.0, g: 0.8431372549, b: 0.0 },
-	        strokeStyle: 'solid',
-	        strokeOpacity: 1.0,
-	        // Values of 2 and above appear smoothest.
-	        antialiasing: 2.0,
-	        closed: false,
-	        line: function (d) { return d; },
-	        position: function (d) { return d; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.line !== undefined) {
-	      defaultStyle.line = arg.line;
-	    }
-
-	    if (arg.position !== undefined) {
-	      defaultStyle.position = arg.position;
-	    }
-
-	    m_this.style(defaultStyle);
-
-	    m_this.dataTime().modified();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	/**
-	 * Create a lineFeature from an object.
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.lineFeature.spec} spec The object specification
-	 * @returns {geo.lineFeature|null}
-	 */
-	lineFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'line';
-	  return feature.create(layer, spec);
-	};
-
-	lineFeature.capabilities = {
-	  /* core feature name -- support in any manner */
-	  feature: 'line',
-	  /* support for solid-colored, constant-width lines */
-	  basic: 'line.basic',
-	  /* support for lines that vary in width and color */
-	  multicolor: 'line.multicolor'
-	};
-
-	inherit(lineFeature, feature);
-	module.exports = lineFeature;
-
-
-/***/ }),
-/* 207 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-	var timestamp = __webpack_require__(209);
-	var geo_event = __webpack_require__(9);
-
-	/**
-	 * General specification for features.
-	 *
-	 * @typedef {object} geo.feature.spec
-	 * @property {geo.layer} [layer] the parent layer associated with the feature.
-	 * @property {boolean} [selectionAPI=false] If truthy, enable selection events
-	 *      on the feature.  Selection events are those in `geo.event.feature`.
-	 *      They can be bound via a call like
-	 *      <pre><code>
-	 *      feature.geoOn(geo.event.feature.mousemove, function (evt) {
-	 *        // do something with the feature
-	 *      });
-	 *      </code></pre>
-	 *      where the handler is passed a `geo.feature.event` object.
-	 * @property {boolean} [visible=true] If truthy, show the feature.  If falsy,
-	 *      hide the feature and do not allow interaction with it.
-	 * @property {string} [gcs] The interface gcs for this feature.  If `undefined`
-	 *      or `null`, this uses the layer's interface gcs.  This is a string used
-	 *      by {@linkcode geo.transform}.
-	 * @property {number} [bin=0] The bin number is used to determine the order
-	 *      of multiple features on the same layer.  It has no effect except on the
-	 *      vgl renderer.  A negative value hides the feature without stopping
-	 *      interaction with it.  Otherwise, more features with higher bin numbers
-	 *      are drawn above those with lower bin numbers.  If two features have the
-	 *      same bin number, their order relative to one another is indeterminate
-	 *      and may be unstable.
-	 * @property {geo.renderer?} [renderer] A reference to the renderer used for
-	 *      the feature.
-	 * @property {object} [style] An object that contains style values for the
-	 *      feature.
-	 * @property {function|number} [style.opacity=1] The opacity on a scale of 0 to
-	 *      1.
-	 */
-
-	/**
-	 * @typedef {geo.feature.spec} geo.feature.createSpec
-	 * @property {string} type A supported feature type.
-	 * @property {object[]} [data=[]] An array of arbitrary objects used to
-	 *  construct the feature.  These objects (and their associated indices in the
-	 *  array) will be passed back to style and attribute accessors provided by the
-	 *  user.
-	 */
-
-	/**
-	 * @typedef {geo.event} geo.feature.event
-	 * @property {number} index The index of the feature within the data array.
-	 * @property {object} data The data element associated with the indexed
-	 *      feature.
-	 * @property {geo.mouseState} mouse The mouse information during the event.
-	 * @property {object} [extra] Additional information about the feature.  This
-	 *      is sometimes used to identify a subsection of the feature.
-	 * @property {number} [eventID] A monotonically increasing number identifying
-	 *      this feature event loop.  This is provided on
-	 *      `geo.event.feature.mousemove`, `geo.event.feature.mouseclick`,
-	 *      `geo.event.feature.mouseover`, `geo.event.feature.mouseout`,
-	 *      `geo.event.feature.brush`, and `geo.event.feature.brushend`
-	 *      events, since each of those can trigger multiple events for one mouse
-	 *      action (all events triggered by the same mouse action will have the
-	 *      same `eventID`).
-	 * @property {boolean} [top] `true` if this is the top-most feature that the
-	 *      mouse is over.  Only the top-most feature gets
-	 *      `geo.event.feature.mouseon` events, whereas multiple features can get
-	 *      other events.
-	 */
-
-	/**
-	 * @typedef {object} geo.feature.searchResult
-	 * @property {object[]} found A list of elements from the data array that were
-	 *      found by the search.
-	 * @property {number[]} index A list of the indices of the elements that were
-	 *      found by the search.
-	 * @property {object[]} [extra] A list of additional information per found
-	 *      element.  The information is passed to events without change.
-	 */
-
-	/**
-	 * Create a new instance of class feature.
-	 *
-	 * @class
-	 * @alias geo.feature
-	 * @extends geo.sceneObject
-	 * @param {geo.feature.spec} [arg] A feature specification.
-	 * @returns {geo.feature}
-	 */
-	var feature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof feature)) {
-	    return new feature(arg);
-	  }
-	  sceneObject.call(this);
-
-	  var util = __webpack_require__(83);
-
-	  /**
-	   * @private
-	   */
-	  arg = arg || {};
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_selectionAPI = arg.selectionAPI === undefined ? false : !!arg.selectionAPI,
-	      m_style = {},
-	      m_layer = arg.layer === undefined ? null : arg.layer,
-	      m_gcs = arg.gcs,
-	      m_visible = arg.visible === undefined ? true : arg.visible,
-	      m_bin = arg.bin === undefined ? 0 : arg.bin,
-	      m_renderer = arg.renderer === undefined ? null : arg.renderer,
-	      m_dataTime = timestamp(),
-	      m_buildTime = timestamp(),
-	      m_updateTime = timestamp(),
-	      m_dependentFeatures = [],
-	      m_selectedFeatures = [];
-
-	  // subclasses can add keys to this for styles that apply to subcomponents of
-	  // data items, such as individual vertices on lines or polygons.
-	  this._subfeatureStyles = {};
-
-	  /**
-	   * Private method to bind mouse handlers on the map element.  This does
-	   * nothing if the selectionAPI is turned off.  Otherwise, it first unbinds
-	   * any existing handlers and then binds handlers.
-	   */
-	  this._bindMouseHandlers = function () {
-
-	    // Don't bind handlers for improved performance on features that don't
-	    // require it.
-	    if (!this.selectionAPI()) {
-	      return;
-	    }
-
-	    // First unbind to be sure that the handlers aren't bound twice.
-	    m_this._unbindMouseHandlers();
-
-	    m_this.geoOn(geo_event.mousemove, m_this._handleMousemove);
-	    m_this.geoOn(geo_event.mouseclick, m_this._handleMouseclick);
-	    m_this.geoOn(geo_event.brushend, m_this._handleBrushend);
-	    m_this.geoOn(geo_event.brush, m_this._handleBrush);
-	  };
-
-	  /**
-	   * Private method to unbind mouse handlers on the map element.
-	   */
-	  this._unbindMouseHandlers = function () {
-	    m_this.geoOff(geo_event.mousemove, m_this._handleMousemove);
-	    m_this.geoOff(geo_event.mouseclick, m_this._handleMouseclick);
-	    m_this.geoOff(geo_event.brushend, m_this._handleBrushend);
-	    m_this.geoOff(geo_event.brush, m_this._handleBrush);
-	  };
-
-	  /**
-	   * Search for features containing the given point.  This should be defined in
-	   * relevant subclasses.
-	   *
-	   * @param {geo.geoPosition} geo Coordinate in interface gcs.
-	   * @returns {geo.feature.searchResult} An object with a list of features and
-	   *    feature indices that are located at the specified point.
-	   */
-	  this.pointSearch = function (geo) {
-	    // base class method does nothing
-	    return {
-	      index: [],
-	      found: []
-	    };
-	  };
-
-	  /**
-	   * Search for features contained within a rectangilar region.  This should be
-	   * defined in relevant subclasses.
-	   *
-	   * @param {geo.geoPosition} lowerLeft Lower-left corner in gcs coordinates.
-	   * @param {geo.geoPosition} upperRight Upper-right corner in gcs coordinates.
-	   * @param {object} [opts] Additional search options.
-	   * @param {boolean} [opts.partial=false] If truthy, include features that are
-	   *    partially in the box, otherwise only include features that are fully
-	   *    within the region.
-	   * @returns {number[]} A list of features indices that are in the box region.
-	   */
-	  this.boxSearch = function (lowerLeft, upperRight, opts) {
-	    // base class method does nothing
-	    return [];
-	  };
-
-	  /**
-	   * Private mousemove handler.  This uses `pointSearch` to determine which
-	   * features the mouse is over, then fires appropriate events.
-	   *
-	   * @fires geo.event.feature.mouseover
-	   * @fires geo.event.feature.mouseout
-	   * @fires geo.event.feature.mousemove
-	   * @fires geo.event.feature.mouseoff
-	   * @fires geo.event.feature.mouseon
-	   */
-	  this._handleMousemove = function () {
-	    var mouse = m_this.layer().map().interactor().mouse(),
-	        data = m_this.data(),
-	        over = m_this.pointSearch(mouse.geo),
-	        newFeatures = [], oldFeatures = [], lastTop = -1, top = -1, extra;
-
-	    // exit if we have no old or new found entries
-	    if (!m_selectedFeatures.length && !over.index.length) {
-	      return;
-	    }
-	    extra = over.extra || {};
-	    // Get the index of the element that was previously on top
-	    if (m_selectedFeatures.length) {
-	      lastTop = m_selectedFeatures[m_selectedFeatures.length - 1];
-	    }
-
-	    // There are probably faster ways of doing this:
-	    newFeatures = over.index.filter(function (i) {
-	      return m_selectedFeatures.indexOf(i) < 0;
-	    });
-	    oldFeatures = m_selectedFeatures.filter(function (i) {
-	      return over.index.indexOf(i) < 0;
-	    });
-
-	    feature.eventID += 1;
-	    // Fire events for mouse in first.
-	    newFeatures.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.mouseover, {
-	        data: data[i],
-	        index: i,
-	        extra: extra[i],
-	        mouse: mouse,
-	        eventID: feature.eventID,
-	        top: idx === newFeatures.length - 1
-	      }, true);
-	    });
-
-	    feature.eventID += 1;
-	    // Fire events for mouse out next
-	    oldFeatures.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.mouseout, {
-	        data: data[i],
-	        index: i,
-	        mouse: mouse,
-	        eventID: feature.eventID,
-	        top: idx === oldFeatures.length - 1
-	      }, true);
-	    });
-
-	    feature.eventID += 1;
-	    // Fire events for mouse move last
-	    over.index.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.mousemove, {
-	        data: data[i],
-	        index: i,
-	        extra: extra[i],
-	        mouse: mouse,
-	        eventID: feature.eventID,
-	        top: idx === over.index.length - 1
-	      }, true);
-	    });
-
-	    // Replace the selected features array
-	    m_selectedFeatures = over.index;
-
-	    // Get the index of the element that is now on top
-	    if (m_selectedFeatures.length) {
-	      top = m_selectedFeatures[m_selectedFeatures.length - 1];
-	    }
-
-	    if (lastTop !== top) {
-	      // The element on top changed so we need to fire mouseon/mouseoff
-	      if (lastTop !== -1) {
-	        m_this.geoTrigger(geo_event.feature.mouseoff, {
-	          data: data[lastTop],
-	          index: lastTop,
-	          mouse: mouse
-	        }, true);
-	      }
-
-	      if (top !== -1) {
-	        m_this.geoTrigger(geo_event.feature.mouseon, {
-	          data: data[top],
-	          index: top,
-	          extra: extra[top],
-	          mouse: mouse
-	        }, true);
-	      }
-	    }
-	  };
-
-	  /**
-	   * Private mouseclick handler.  This uses `pointSearch` to determine which
-	   * features the mouse is over, then fires a click event for each such
-	   * feature.
-	   *
-	   * @param {geo.event} evt The event that triggered this handler.
-	   * @fires geo.event.feature.mouseclick
-	   */
-	  this._handleMouseclick = function (evt) {
-	    var mouse = m_this.layer().map().interactor().mouse(),
-	        data = m_this.data(),
-	        over = m_this.pointSearch(mouse.geo),
-	        extra = over.extra || {};
-
-	    mouse.buttonsDown = evt.buttonsDown;
-	    feature.eventID += 1;
-	    over.index.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.mouseclick, {
-	        data: data[i],
-	        index: i,
-	        extra: extra[i],
-	        mouse: mouse,
-	        eventID: feature.eventID,
-	        top: idx === over.index.length - 1
-	      }, true);
-	    });
-	  };
-
-	  /**
-	   * Private brush handler.  This uses `boxSearch` to determine which features
-	   * the brush includes, then fires appropriate events.
-	   *
-	   * @param {geo.brushSelection} brush The current brush selection.
-	   * @fires geo.event.feature.brush
-	   */
-	  this._handleBrush = function (brush) {
-	    var idx = m_this.boxSearch(brush.gcs.lowerLeft, brush.gcs.upperRight),
-	        data = m_this.data();
-
-	    feature.eventID += 1;
-	    idx.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.brush, {
-	        data: data[i],
-	        index: i,
-	        mouse: brush.mouse,
-	        brush: brush,
-	        eventID: feature.eventID,
-	        top: idx === idx.length - 1
-	      }, true);
-	    });
-	  };
-
-	  /**
-	   * Private brushend handler.  This uses `boxSearch` to determine which
-	   * features the brush includes, then fires appropriate events.
-	   *
-	   * @param {geo.brushSelection} brush The current brush selection.
-	   * @fires geo.event.feature.brushend
-	   */
-	  this._handleBrushend = function (brush) {
-	    var idx = m_this.boxSearch(brush.gcs.lowerLeft, brush.gcs.upperRight),
-	        data = m_this.data();
-
-	    feature.eventID += 1;
-	    idx.forEach(function (i, idx) {
-	      m_this.geoTrigger(geo_event.feature.brushend, {
-	        data: data[i],
-	        index: i,
-	        mouse: brush.mouse,
-	        brush: brush,
-	        eventID: feature.eventID,
-	        top: idx === idx.length - 1
-	      }, true);
-	    });
-	  };
-
-	  /**
-	   * Get/Set style used by the feature.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the current style
-	   *    object.  If a string and `arg2` is undefined, return the style
-	   *    associated with the specified key.  If a string and `arg2` is defined,
-	   *    set the named style to the specified value.  Otherwise, extend the
-	   *    current style with the values in the specified object.
-	   * @param {*} [arg2] If `arg1` is a string, the new value for that style.
-	   * @returns {object|this} Either the entire style object, the value of a
-	   *    specific style, or the current class instance.
-	   */
-	  this.style = function (arg1, arg2) {
-	    if (arg1 === undefined) {
-	      return m_style;
-	    } else if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_style[arg1];
-	    } else if (arg2 === undefined) {
-	      m_style = $.extend({}, m_style, arg1);
-	      m_this.modified();
-	      return m_this;
-	    } else {
-	      m_style[arg1] = arg2;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * A uniform getter that always returns a function even for constant styles.
-	   * This can also return all defined styles as functions in a single object.
-	   *
-	   * @param {string} [key] If defined, return a function for the named style.
-	   *    Otherwise, return an object with a function for all defined styles.
-	   * @returns {function|object} Either a function for the named style or an
-	   *    object with functions for all defined styles.
-	   */
-	  this.style.get = function (key) {
-	    var out;
-	    if (key === undefined) {
-	      var all = {}, k;
-	      for (k in m_style) {
-	        if (m_style.hasOwnProperty(k)) {
-	          all[k] = m_this.style.get(k);
-	        }
-	      }
-	      return all;
-	    }
-	    if (key.toLowerCase().match(/color$/)) {
-	      if (util.isFunction(m_style[key])) {
-	        out = function () {
-	          return util.convertColor(
-	            m_style[key].apply(this, arguments)
-	          );
-	        };
-	      } else {
-	        // if the color is not a function, only convert it once
-	        out = util.ensureFunction(util.convertColor(m_style[key]));
-	      }
-	    } else {
-	      out = util.ensureFunction(m_style[key]);
-	    }
-	    return out;
-	  };
-
-	  /**
-	   * Set style(s) from array(s).  For each style, the array should have one
-	   * value per data item.  The values are not converted or validated.  Color
-	   * values should be `geo.geoColorObject`s.  If invalid values are given the
-	   * behavior is undefined.
-	   *   For some feature styles, if the first entry of an array is itself an
-	   * array, then each entry of the array is expected to be an array, and values
-	   * are used from these subarrays.  This allows a style to apply, for
-	   * instance, per vertex of a data item rather than per data item.
-	   *
-	   * @param {string|object} keyOrObject Either the name of a single style or
-	   *    an object where the keys are the names of styles and the values are
-	   *    each arrays.
-	   * @param {array} styleArray If keyOrObject is a string, an array of values
-	   *    for the style.  If keyOrObject is an object, this parameter is ignored.
-	   * @param {boolean} [refresh=false] `true` to redraw the feature when it has
-	   *    been updated.  If an object with styles is passed, the redraw is only
-	   *    done once.
-	   * @returns {this} The feature instance.
-	   */
-	  this.updateStyleFromArray = function (keyOrObject, styleArray, refresh) {
-	    if (typeof keyOrObject !== 'string') {
-	      $.each(keyOrObject, function (key, value) {
-	        m_this.updateStyleFromArray(key, value);
-	      });
-	    } else {
-	      /* colors are always expected to be objects with r, g, b values, so for
-	       * any color, make sure we don't have undefined entries. */
-	      var fallback;
-	      if (keyOrObject.toLowerCase().match(/color$/)) {
-	        fallback = {r: 0, g: 0, b: 0};
-	      }
-	      if (!Array.isArray(styleArray)) {
-	        return m_this;
-	      }
-	      if (m_this._subfeatureStyles[keyOrObject]) {
-	        if (styleArray.length && Array.isArray(styleArray[0])) {
-	          m_this.style(keyOrObject, function (v, j, d, i) {
-	            var val = (styleArray[i] || [])[j];
-	            return val !== undefined ? val : fallback;
-	          });
-	        } else {
-	          m_this.style(keyOrObject, function (v, j, d, i) {
-	            var val = styleArray[i];
-	            return val !== undefined ? val : fallback;
-	          });
-	        }
-	      } else {
-	        m_this.style(keyOrObject, function (d, i) {
-	          var val = styleArray[i];
-	          return val !== undefined ? val : fallback;
-	        });
-	      }
-	    }
-	    if (refresh && m_this.visible()) {
-	      m_this.draw();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the layer referenced by the feature.
-	   *
-	   * @returns {geo.layer} The layer associated with the feature.
-	   */
-	  this.layer = function () {
-	    return m_layer;
-	  };
-
-	  /**
-	   * Get the renderer used by the feature.
-	   *
-	   * @returns {geo.renderer} The renderer used to render the feature.
-	   */
-	  this.renderer = function () {
-	    return m_renderer;
-	  };
-
-	  /**
-	   * Get/Set the projection of the feature.
-	   *
-	   * @param {string?} [val] If `undefined`, return the current gcs.  If
-	   *    `null`, use the map's interface gcs.  Otherwise, set a new value for
-	   *    the gcs.
-	   * @returns {string|this} A string used by {@linkcode geo.transform}.  If the
-	   *    map interface gcs is in use, that value will be returned.  If the gcs
-	   *    is set, return the current class instance.
-	   */
-	  this.gcs = function (val) {
-	    if (val === undefined) {
-	      if ((m_gcs === undefined || m_gcs === null) && m_renderer) {
-	        return m_renderer.layer().map().ingcs();
-	      }
-	      return m_gcs;
-	    } else {
-	      m_gcs = val;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Convert from the feature's gcs coordinates to display coordinates.
-	   *
-	   * @param {geo.geoPosition} c The input coordinate to convert.
-	   * @returns {geo.screenPosition} Display space coordinates.
-	   */
-	  ////////////////////////////////////////////////////////////////////////////
-	  this.featureGcsToDisplay = function (c) {
-	    var map = m_renderer.layer().map();
-	    c = map.gcsToWorld(c, m_this.gcs());
-	    c = map.worldToDisplay(c);
-	    if (m_renderer.baseToLocal) {
-	      c = m_renderer.baseToLocal(c);
-	    }
-	    return c;
-	  };
-
-	  /**
-	   * Get/Set the visibility of the feature.
-	   *
-	   * @param {boolean} [val] A boolean to change the visibility, or `undefined`
-	   *    to return the visibility.
-	   * @param {boolean} [direct] If `true`, when getting the visibility,
-	   *    disregard the visibility of the parent layer, and when setting, refresh
-	   *    the state regardless of whether it has changed or not.  Otherwise, the
-	   *    functional visibility is returned, where both the feature and the layer
-	   *    must be visible for a `true` result.
-	   * @returns {boolean|this} Either the visibility (if getting) or the feature
-	   *    (if setting).
-	   */
-	  this.visible = function (val, direct) {
-	    if (val === undefined) {
-	      if (!direct && m_layer && m_layer.visible && !m_layer.visible()) {
-	        return false;
-	      }
-	      return m_visible;
-	    }
-	    if (m_visible !== val || direct) {
-	      m_visible = val;
-	      m_this.modified();
-	      if (m_layer && m_layer.visible && !m_layer.visible()) {
-	        val = false;
-	      }
-	      // bind or unbind mouse handlers on visibility change
-	      if (val) {
-	        m_this._bindMouseHandlers();
-	      } else {
-	        m_this._unbindMouseHandlers();
-	      }
-	      for (var i = 0; i < m_dependentFeatures.length; i += 1) {
-	        m_dependentFeatures[i].visible(m_visible, direct);
-	      }
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set a list of dependent features.  Dependent features have their
-	   * visibility changed at the same time as the feature.
-	   *
-	   * @param {geo.feature[]} [arg] If specified, the new list of dependent
-	   *    features.  Otherwise, return the current list of dependent features.
-	   * @returns {geo.feature[]|this} The current list of dependent features or
-	   *    a reference to `this`.
-	   */
-	  this.dependentFeatures = function (arg) {
-	    if (arg === undefined) {
-	      return m_dependentFeatures.slice();
-	    }
-	    m_dependentFeatures = arg.slice();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set bin of the feature.  The bin number is used to determine the order
-	   * of multiple features on the same layer.  It has no effect except on the
-	   * vgl renderer.  A negative value hides the feature without stopping
-	   * interaction with it.  Otherwise, more features with higher bin numbers are
-	   * drawn above those with lower bin numbers.  If two features have the same
-	   * bin number, their order relative to one another is indeterminate and may
-	   * be unstable.
-	   *
-	   * @param {number} [val] The new bin number.  If `undefined`, return the
-	   *    current bin number.
-	   * @returns {number|this} The current bin number or a reference to `this`.
-	   */
-	  this.bin = function (val) {
-	    if (val === undefined) {
-	      return m_bin;
-	    } else {
-	      m_bin = val;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get/Set timestamp of data change.
-	   *
-	   * @param {geo.timestamp} [val] The new data timestamp object or `undefined`
-	   *    to get the current data timestamp object.
-	   * @returns {geo.timestamp|this}
-	   */
-	  this.dataTime = function (val) {
-	    if (val === undefined) {
-	      return m_dataTime;
-	    } else {
-	      m_dataTime = val;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get/Set timestamp of last time a build happened.
-	   *
-	   * @param {geo.timestamp} [val] The new build timestamp object or `undefined`
-	   *    to get the current build timestamp object.
-	   * @returns {geo.timestamp|this}
-	   */
-	  this.buildTime = function (val) {
-	    if (val === undefined) {
-	      return m_buildTime;
-	    } else {
-	      m_buildTime = val;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get/Set timestamp of last time an update happened.
-	   *
-	   * @param {geo.timestamp} [val] The new update timestamp object or
-	   *    `undefined` to get the current update timestamp object.
-	   * @returns {geo.timestamp|this}
-	   */
-	  this.updateTime = function (val) {
-	    if (val === undefined) {
-	      return m_updateTime;
-	    } else {
-	      m_updateTime = val;
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get/Set the data array for the feature.  This is equivalent to getting or
-	   * setting the `data` style, except that setting the data array via this
-	   * method updates the data timestamp, whereas setting it via the style does
-	   * not.
-	   *
-	   * @param {array} [data] A new data array or `undefined` to return the
-	   *    existing array.
-	   * @returns {array|this}
-	   */
-	  this.data = function (data) {
-	    if (data === undefined) {
-	      return m_this.style('data') || [];
-	    } else {
-	      m_this.style('data', data);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Get/Set if the selection API is enabled for this feature.
-	   *
-	   * @param {boolean} [arg] `undefined` to return the selectionAPI state, or a
-	   *    boolean to change the state.
-	   * @param {boolean} [direct] If `true`, when getting the selectionAPI state,
-	   *    disregard the state of the parent layer, and when setting, refresh the
-	   *    state regardless of whether it has changed or not.
-	   * @returns {boolean|this} Either the selectionAPI state (if getting) or the
-	   *    feature (if setting).
-	   */
-	  this.selectionAPI = function (arg, direct) {
-	    if (arg === undefined) {
-	      if (!direct && m_layer && m_layer.selectionAPI && !m_layer.selectionAPI()) {
-	        return false;
-	      }
-	      return m_selectionAPI;
-	    }
-	    arg = !!arg;
-	    if (arg !== m_selectionAPI || direct) {
-	      m_selectionAPI = arg;
-	      this._unbindMouseHandlers();
-	      this._bindMouseHandlers();
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Initialize the class instance.  Derived classes should implement this.
-	   *
-	   * @param {geo.feature.spec} arg The feature specification.
-	   */
-	  this._init = function (arg) {
-	    if (!m_layer) {
-	      throw new Error('Feature requires a valid layer');
-	    }
-	    m_style = $.extend({},
-	                {'opacity': 1.0}, arg.style === undefined ? {} :
-	                arg.style);
-	    m_this._bindMouseHandlers();
-	  };
-
-	  /**
-	   * Build.
-	   *
-	   * Derived classes should implement this.
-	   */
-	  this._build = function () {
-	  };
-
-	  /**
-	   * Update.
-	   *
-	   * Derived classes should implement this.
-	   */
-	  this._update = function () {
-	  };
-
-	  /**
-	   * Destroy.  Unbind mouse handlers, clear internal variables, and call the
-	   * parent destroy method.
-	   *
-	   * Derived classes should implement this.
-	   */
-	  this._exit = function () {
-	    m_this._unbindMouseHandlers();
-	    m_selectedFeatures = [];
-	    m_style = {};
-	    s_exit();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	/**
-	 * The most recent `geo.feature.event` triggered.
-	 * @type {number}
-	 */
-	feature.eventID = 0;
-
-	/**
-	 * Create a feature.  This defines a general interface; see individual feature
-	 * types for specific details.
-	 *
-	 * @param {geo.layer} layer The layer to add the feature to.
-	 * @param {geo.feature.spec} spec The feature specification.  At least the
-	 *      `type` must be specified.
-	 * @returns {geo.feature|null} The created feature or `null` for a failure.
-	 */
-	feature.create = function (layer, spec) {
-	  'use strict';
-
-	  // Check arguments
-	  if (!(layer instanceof __webpack_require__(210))) {
-	    console.warn('Invalid layer');
-	    return null;
-	  }
-	  if (typeof spec !== 'object') {
-	    console.warn('Invalid spec');
-	    return null;
-	  }
-	  var type = spec.type;
-	  var feature = layer.createFeature(type, spec);
-	  if (!feature) {
-	    console.warn('Could not create feature type "' + type + '"');
-	    return null;
-	  }
-
-	  spec.data = spec.data || [];
-	  return feature.style(spec);
-	};
-
-	inherit(feature, sceneObject);
-	module.exports = feature;
-
-
-/***/ }),
-/* 208 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var object = __webpack_require__(203);
-
-	/**
-	 * Create a new instance of class sceneObject, which extends the object's
-	 * event handling with a tree-based event propagation.
-	 *
-	 * @class
-	 * @alias geo.sceneObject
-	 * @extends geo.object
-	 * @returns {geo.sceneObject}
-	 */
-	var sceneObject = function (arg) {
-	  'use strict';
-	  if (!(this instanceof sceneObject)) {
-	    return new sceneObject();
-	  }
-	  object.call(this, arg);
-
-	  var m_this = this,
-	      m_parent = null,
-	      m_children = [],
-	      s_exit = this._exit,
-	      s_trigger = this.geoTrigger,
-	      s_addPromise = this.addPromise,
-	      s_onIdle = this.onIdle;
-
-	  /**
-	   *  Override object.addPromise to propagate up the scene tree.
-	   */
-	  this.addPromise = function (promise) {
-	    if (m_parent) {
-	      m_parent.addPromise(promise);
-	    } else {
-	      s_addPromise(promise);
-	    }
-	  };
-
-	  /**
-	   *  Override object.onIdle to propagate up the scene tree.
-	   */
-	  this.onIdle = function (handler) {
-	    if (m_parent) {
-	      m_parent.onIdle(handler);
-	    } else {
-	      s_onIdle(handler);
-	    }
-	  };
-
-	  /**
-	   *  Get/set parent of the object
-	   *  @param {geo.sceneObject} [parent]
-	   */
-	  this.parent = function (arg) {
-	    if (arg === undefined) {
-	      return m_parent;
-	    }
-	    m_parent = arg;
-	    return m_this;
-	  };
-
-	  /**
-	   *  Add a child (or an array of children) to the object
-	   */
-	  this.addChild = function (child) {
-	    if (Array.isArray(child)) {
-	      child.forEach(m_this.addChild);
-	      return m_this;
-	    }
-	    child.parent(m_this);
-	    m_children.push(child);
-	    return m_this;
-	  };
-
-	  /**
-	   *  Remove a child (or array of children) from the object
-	   */
-	  this.removeChild = function (child) {
-	    if (Array.isArray(child)) {
-	      child.forEach(m_this.removeChild);
-	      return m_this;
-	    }
-	    m_children = m_children.filter(function (c) { return c !== child; });
-	    return m_this;
-	  };
-
-	  /**
-	   *  Get an array of child objects
-	   */
-	  this.children = function () {
-	    return m_children.slice();
-	  };
-
-	  /**
-	   *  Force redraw of a scene object, to be implemented by subclasses.
-	   *  Base class just calls draw of child objects.
-	   */
-	  this.draw = function (arg) {
-	    m_this.children().forEach(function (child) {
-	      child.draw(arg);
-	    });
-	    return m_this;
-	  };
-
-	  /**
-	   *  Trigger an event (or events) on this object and call all handlers.
-	   *  @param {String} event the event to trigger
-	   *  @param {Object} args arbitrary argument to pass to the handler
-	   *  @param {Boolean} childrenOnly if true, only propagate down the tree
-	   */
-	  this.geoTrigger = function (event, args, childrenOnly) {
-
-	    var geoArgs;
-
-	    args = args || {};
-	    geoArgs = args.geo || {};
-	    args.geo = geoArgs;
-
-	    // stop propagation if requested by the handler
-	    if (geoArgs.stopPropagation) {
-	      return m_this;
-	    }
-
-	    // If the event was not triggered by the parent, just propagate up the tree
-	    if (!childrenOnly && m_parent && geoArgs._triggeredBy !== m_parent) {
-	      geoArgs._triggeredBy = m_this;
-	      m_parent.geoTrigger(event, args);
-	      return m_this;
-	    }
-
-	    // call the object's own handlers
-	    s_trigger.call(m_this, event, args);
-
-	    // stop propagation if requested by the handler
-	    if (geoArgs.stopPropagation) {
-	      return m_this;
-	    }
-
-	    // trigger the event on the children
-	    m_children.forEach(function (child) {
-	      if (child.geoTrigger) {
-	        geoArgs._triggeredBy = m_this;
-	        child.geoTrigger(event, args);
-	      }
-	    });
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Free all resources and destroy the object.
-	   */
-	  this._exit = function () {
-	    m_this.children = [];
-	    delete m_this.parent;
-	    s_exit();
-	  };
-
-	  return this;
-	};
-
-	inherit(sceneObject, object);
-	module.exports = sceneObject;
-
-
-/***/ }),
-/* 209 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var vgl = __webpack_require__(86);
-	var inherit = __webpack_require__(8);
-
-	/**
-	 * Create a new instance of class timestamp
-	 *
-	 * @class geo.timestamp
-	 * @extends vgl.timestamp
-	 * @returns {geo.timestamp}
-	 */
-	var timestamp = function () {
-	  'use strict';
-	  if (!(this instanceof timestamp)) {
-	    return new timestamp();
-	  }
-	  vgl.timestamp.call(this);
-	};
-
-	inherit(timestamp, vgl.timestamp);
-	module.exports = timestamp;
-
-
-/***/ }),
-/* 210 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-	var feature = __webpack_require__(207);
-	var checkRenderer = __webpack_require__(201).checkRenderer;
-	var rendererForFeatures = __webpack_require__(201).rendererForFeatures;
-	var rendererForAnnotations = __webpack_require__(201).rendererForAnnotations;
-
-	/**
-	 * @class geo.layer
-	 * @extends geo.sceneObject
-	 * @param {Object?} arg An options argument
-	 * @param {string} arg.attribution An attribution string to display
-	 * @param {number} arg.zIndex The z-index to assign to the layer (defaults
-	 *   to the index of the layer inside the map)
-	 * @returns {geo.layer}
-	 */
-	var layer = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof layer)) {
-	    return new layer(arg);
-	  }
-	  arg = arg || {};
-	  sceneObject.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var timestamp = __webpack_require__(209);
-	  var createRenderer = __webpack_require__(201).createRenderer;
-	  var newLayerId = __webpack_require__(83).newLayerId;
-	  var geo_event = __webpack_require__(9);
-	  var camera = __webpack_require__(211);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_id = arg.id === undefined ? layer.newLayerId() : arg.id,
-	      m_name = '',
-	      m_map = arg.map === undefined ? null : arg.map,
-	      m_node = null,
-	      m_canvas = null,
-	      m_renderer = null,
-	      m_initialized = false,
-	      m_rendererName = arg.renderer !== undefined ? arg.renderer : (
-	        arg.annotations ? rendererForAnnotations(arg.annotations) :
-	        rendererForFeatures(arg.features)),
-	      m_dataTime = timestamp(),
-	      m_updateTime = timestamp(),
-	      m_sticky = arg.sticky === undefined ? true : arg.sticky,
-	      m_active = arg.active === undefined ? true : arg.active,
-	      m_opacity = arg.opacity === undefined ? 1 : arg.opacity,
-	      m_attribution = arg.attribution || null,
-	      m_visible = arg.visible === undefined ? true : arg.visible,
-	      m_selectionAPI = arg.selectionAPI === undefined ? true : arg.selectionAPI,
-	      m_zIndex;
-
-	  m_rendererName = checkRenderer(m_rendererName);
-
-	  if (!m_map) {
-	    throw new Error('Layers must be initialized on a map.');
-	  }
-
-	  /**
-	   * Get the name of the renderer.
-	   *
-	   * @returns {string}
-	   */
-	  this.rendererName = function () {
-	    return m_rendererName;
-	  };
-
-	  /**
-	   * Get or set the z-index of the layer.  The z-index controls the display
-	   * order of the layers in much the same way as the CSS z-index property.
-	   *
-	   * @param {number} [zIndex] The new z-index
-	   * @returns {number|this}
-	   */
-	  this.zIndex = function (zIndex) {
-	    if (zIndex === undefined) {
-	      return m_zIndex;
-	    }
-	    m_zIndex = zIndex;
-	    m_node.css('z-index', m_zIndex);
-	    return m_this;
-	  };
-
-	  /**
-	   * Bring the layer above the given number of layers.  This will rotate the
-	   * current z-indices for this and the next `n` layers.
-	   *
-	   * @param {number} [n=1] The number of positions to move
-	   * @returns {this}
-	   */
-	  this.moveUp = function (n) {
-	    var order, i, me = null, tmp, sign;
-
-	    // set the default
-	    if (n === undefined) {
-	      n = 1;
-	    }
-
-	    // set the sort direction that controls if we are moving up
-	    // or down the z-index
-	    sign = 1;
-	    if (n < 0) {
-	      sign = -1;
-	      n = -n;
-	    }
-
-	    // get a sorted list of layers
-	    order = m_this.map().layers().sort(
-	      function (a, b) { return sign * (a.zIndex() - b.zIndex()); }
-	    );
-
-	    for (i = 0; i < order.length; i += 1) {
-	      if (me === null) {
-	        // loop until we get to the current layer
-	        if (order[i] === m_this) {
-	          me = i;
-	        }
-	      } else if (i - me <= n) {
-	        // swap the next n layers
-	        tmp = m_this.zIndex();
-	        m_this.zIndex(order[i].zIndex());
-	        order[i].zIndex(tmp);
-	      } else {
-	        // all the swaps are done now
-	        break;
-	      }
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Bring the layer below the given number of layers.  This will rotate the
-	   * current z-indices for this and the previous `n` layers.
-	   *
-	   * @param {number} [n=1] The number of positions to move
-	   * @returns {this}
-	   */
-	  this.moveDown = function (n) {
-	    if (n === undefined) {
-	      n = 1;
-	    }
-	    return m_this.moveUp(-n);
-	  };
-
-	  /**
-	   * Bring the layer to the top of the map layers.
-	   *
-	   * @returns {this}
-	   */
-	  this.moveToTop = function () {
-	    return m_this.moveUp(m_this.map().children().length - 1);
-	  };
-
-	  /**
-	   * Bring the layer to the bottom of the map layers.
-	   *
-	   * @returns {this}
-	   */
-	  this.moveToBottom = function () {
-	    return m_this.moveDown(m_this.map().children().length - 1);
-	  };
-
-	  /**
-	   * Get whether or not the layer is sticky (navigates with the map).
-	   *
-	   * @returns {Boolean}
-	   */
-	  this.sticky = function () {
-	    return m_sticky;
-	  };
-
-	  /**
-	   * Get/Set whether or not the layer is active.  An active layer will receive
-	   * native mouse when the layer is on top.  Non-active layers will never
-	   * receive native mouse events.
-	   *
-	   * @returns {Boolean|object}
-	   */
-	  this.active = function (arg) {
-	    if (arg === undefined) {
-	      return m_active;
-	    }
-	    if (m_active !== arg) {
-	      m_active = arg;
-	      m_node.toggleClass('active', m_active);
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Get root node of the layer
-	   *
-	   * @returns {div}
-	   */
-	  this.node = function () {
-	    return m_node;
-	  };
-
-	  /**
-	   * Get/Set id of the layer
-	   *
-	   * @returns {String}
-	   */
-	  this.id = function (val) {
-	    if (val === undefined) {
-	      return m_id;
-	    }
-	    m_id = newLayerId();
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set name of the layer
-	   *
-	   * @returns {String}
-	   */
-	  this.name = function (val) {
-	    if (val === undefined) {
-	      return m_name;
-	    }
-	    m_name = val;
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set map of the layer
-	   */
-	  this.map = function () {
-	    return m_map;
-	  };
-
-	  /**
-	   * Get renderer for the layer if any
-	   */
-	  this.renderer = function () {
-	    return m_renderer;
-	  };
-
-	  /**
-	   * Get canvas of the layer
-	   *
-	   */
-	  this.canvas = function () {
-	    return m_canvas;
-	  };
-
-	  /**
-	   * Return last time data got changed
-	   */
-	  this.dataTime = function () {
-	    return m_dataTime;
-	  };
-
-	  /**
-	   * Return the modified time for the last update that did something
-	   */
-	  this.updateTime = function () {
-	    return m_updateTime;
-	  };
-
-	  /**
-	   * Get/Set if the layer has been initialized
-	   */
-	  this.initialized = function (val) {
-	    if (val !== undefined) {
-	      m_initialized = val;
-	      return m_this;
-	    }
-	    return m_initialized;
-	  };
-
-	  /**
-	   * Transform coordinates from world coordinates into a local coordinate
-	   * system specific to the underlying renderer.  This method is exposed
-	   * to allow direct access the rendering context, but otherwise should
-	   * not be called directly.  The default implementation is the identity
-	   * operator.
-	   */
-	  this.toLocal = function (input) {
-	    if (m_this._toLocalMatrix) {
-	      camera.applyTransform(m_this._toLocalMatrix, input);
-	    }
-	    return input;
-	  };
-
-	  /**
-	   * Transform coordinates from a local coordinate system to world coordinates.
-	   */
-	  this.fromLocal = function (input) {
-	    if (m_this._fromLocalMatrix) {
-	      camera.applyTransform(m_this._fromLocalMatrix, input);
-	    }
-	    return input;
-	  };
-
-	  /**
-	   * Get or set the attribution html content that will displayed with the
-	   * layer.  By default, nothing will be displayed.  Note, this content
-	   * is **not** html escaped, so care should be taken when renderering
-	   * user provided content.
-	   * @param {string?} arg An html fragment
-	   * @returns {string|this} Chainable as a setter
-	   */
-	  this.attribution = function (arg) {
-	    if (arg !== undefined) {
-	      m_attribution = arg;
-	      m_this.map().updateAttribution();
-	      return m_this;
-	    }
-	    return m_attribution;
-	  };
-
-	  /**
-	   * Get/Set visibility of the layer
-	   *
-	   * @param {boolean|undefined} val: undefined to return the visibility, a
-	   *    boolean to change the visibility.
-	   * @return {boolean|object} either the visibility (if getting) or the layer
-	   *    (if setting).
-	   */
-	  this.visible = function (val) {
-	    if (val === undefined) {
-	      return m_visible;
-	    }
-	    if (m_visible !== val) {
-	      m_visible = val;
-	      m_node.css('display', m_visible ? '' : 'none');
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set selectionAPI of the layer
-	   *
-	   * @param {boolean|undefined} val: undefined to return the selectionAPI
-	   *    state, or a boolean to change it.
-	   * @return {boolean|object} either the selectionAPI state (if getting) or the
-	   *    layer (if setting).
-	   */
-	  this.selectionAPI = function (val) {
-	    if (val === undefined) {
-	      return m_selectionAPI;
-	    }
-	    if (m_selectionAPI !== val) {
-	      m_selectionAPI = val;
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Init layer
-	   *
-	   * @param {boolean} noEvents if a subclass of this intends to bind the
-	   *    resize, pan, and zoom events itself, set this flag to true to avoid
-	   *    binding them here.
-	   */
-	  this._init = function (noEvents) {
-	    if (m_initialized) {
-	      return m_this;
-	    }
-
-	    m_map.node().append(m_node);
-
-	    /* Pass along the arguments, but not the map reference */
-	    var options = $.extend({}, arg);
-	    delete options.map;
-
-	    if (m_rendererName === null) {
-	      // if given a "null" renderer, then pass the map element as the
-	      // canvas
-	      m_renderer = null;
-	      m_canvas = m_node;
-	    } else if (m_canvas) { // Share context if have valid one
-	      m_renderer = createRenderer(m_rendererName, m_this, m_canvas,
-	                                      options);
-	    } else {
-	      m_renderer = createRenderer(m_rendererName, m_this, undefined,
-	                                      options);
-	      m_canvas = m_renderer.canvas();
-	    }
-
-	    m_node.toggleClass('active', m_this.active());
-
-	    m_initialized = true;
-
-	    if (!noEvents) {
-	      // Bind events to handlers
-	      m_this.geoOn(geo_event.resize, function (event) {
-	        m_this._update({event: event});
-	      });
-
-	      m_this.geoOn(geo_event.pan, function (event) {
-	        m_this._update({event: event});
-	      });
-
-	      m_this.geoOn(geo_event.rotate, function (event) {
-	        m_this._update({event: event});
-	      });
-
-	      m_this.geoOn(geo_event.zoom, function (event) {
-	        m_this._update({event: event});
-	      });
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Clean up resouces
-	   */
-	  this._exit = function () {
-	    m_this.geoOff();
-	    if (m_renderer) {
-	      m_renderer._exit();
-	    }
-	    m_node.off();
-	    m_node.remove();
-	    arg = {};
-	    m_canvas = null;
-	    m_renderer = null;
-	    s_exit();
-	  };
-
-	  /**
-	   * Update layer
-	   */
-	  this._update = function () {
-	  };
-
-	  /**
-	   * Return the width of the layer in pixels.
-	   * **DEPRECIATED: use map.size instead.
-	   */
-	  this.width = function () {
-	    return m_this.map().size().width;
-	  };
-
-	  /**
-	   * Return the height of the layer in pixels
-	   * **DEPRECIATED: use map.size instead.
-	   */
-	  this.height = function () {
-	    return m_this.map().size().height;
-	  };
-
-	  /**
-	   * Get or set the current layer opacity.
-	   */
-	  this.opacity = function (opac) {
-	    if (opac !== undefined) {
-	      m_opacity = opac;
-	      m_node.css('opacity', m_opacity);
-	      return m_this;
-	    }
-	    return m_opacity;
-	  };
-
-	  if (arg.zIndex === undefined) {
-	    arg.zIndex = m_map.children().length;
-	  }
-	  m_zIndex = arg.zIndex;
-
-	  // Create top level div for the layer
-	  m_node = $(document.createElement('div'));
-	  m_node.addClass('geojs-layer');
-	  m_node.attr('id', m_name);
-	  m_this.opacity(m_opacity);
-
-	  // set the z-index
-	  m_this.zIndex(m_zIndex);
-
-	  return m_this;
-	};
-
-	/**
-	 * Gets a new id number for a layer.
-	 * @protected
-	 * @instance
-	 * @returns {number}
-	 */
-	layer.newLayerId = (function () {
-	  'use strict';
-	  var currentId = 1;
-	  return function () {
-	    var id = currentId;
-	    currentId += 1;
-	    return id;
-	  };
-	}());
-
-	/**
-	 * General object specification for feature types.
-	 * @typedef geo.layer.spec
-	 * @type {object}
-	 * @property {string} [type='feature'] For feature compatibility
-	 * with more than one kind of creatable layer
-	 * @property {object[]} [data=[]] The default data array to
-	 * apply to each feature if none exists
-	 * @property {string} [renderer='vgl'] The renderer to use
-	 * @property {geo.feature.spec[]} [features=[]] Features
-	 * to add to the layer
-	 */
-
-	/**
-	 * Create a layer from an object.  Any errors in the creation
-	 * of the layer will result in returning null.
-	 * @param {geo.map} map The map to add the layer to
-	 * @param {geo.layer.spec} spec The object specification
-	 * @returns {geo.layer|null}
-	 */
-	layer.create = function (map, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-
-	  // add osmLayer later
-	  spec.type = 'feature';
-	  if (spec.type !== 'feature') {
-	    console.warn('Unsupported layer type');
-	    return null;
-	  }
-
-	  spec.renderer = spec.renderer || 'vgl';
-	  spec.renderer = checkRenderer(spec.renderer);
-
-	  if (!spec.renderer) {
-	    console.warn('Invalid renderer');
-	    return null;
-	  }
-
-	  var layer = map.createLayer(spec.type, spec);
-	  if (!layer) {
-	    console.warn('Unable to create a layer');
-	    return null;
-	  }
-
-	  // probably move this down to featureLayer eventually
-	  spec.features.forEach(function (f) {
-	    f.data = f.data || spec.data;
-	    f.feature = feature.create(layer, f);
-	  });
-
-	  return layer;
-	};
-
-	inherit(layer, sceneObject);
-	module.exports = layer;
-
-
-/***/ }),
-/* 211 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	(function () {
-	  'use strict';
-
-	  var inherit = __webpack_require__(8);
-	  var object = __webpack_require__(203);
-	  var util = __webpack_require__(83);
-	  var mat4 = __webpack_require__(88);
-	  var vec4 = __webpack_require__(112);
-
-	  /**
-	   * This class defines the raw interface for a camera.  At a low level, the
-	   * camera provides a methods for converting between a map's coordinate system
-	   * to display pixel coordinates.
-	   *
-	   * For the moment, all camera transforms are assumed to be expressible as
-	   * 4x4 matrices.  More general cameras may follow that break this assumption.
-	   *
-	   * The interface for the camera is relatively stable for "map-like" views,
-	   * e.g. when the camera is pointing in the direction [0, 0, -1], and placed
-	   * above the z=0 plane.  More general view changes and events have not yet
-	   * been defined.
-	   *
-	   * The camera emits the following events when the view changes:
-	   *
-	   *   * {@link geo.event.camera.pan} when the camera is translated in the
-	   *       x/y plane
-	   *   * {@link geo.event.camera.zoom} when the camera is changed in a way
-	   *       that modifies the current zoom level
-	   *   * {@link geo.event.camera.view} when the visible bounds change for
-	   *       any reason
-	   *   * {@link geo.event.camera.projection} when the projection type changes
-	   *   * {@link geo.event.camera.viewport} when the viewport changes
-	   *
-	   * By convention, protected methods do not update the internal matrix state,
-	   * public methods do.  There are a few primary methods that are intended to
-	   * be used by external classes to mutate the internal state:
-	   *
-	   *   * bounds: Set the visible bounds (for initialization and zooming)
-	   *   * pan: Translate the camera in x/y by an offset (for panning)
-	   *   * viewFromCenterSizeRotation: set the camera view based on a center
-	   *        point, boundary size, and rotation angle.
-	   *
-	   * @class
-	   * @alias geo.camera
-	   * @extends geo.object
-	   * @param {object?} spec Options argument
-	   * @param {string} spec.projection One of the supported geo.camera.projection
-	   * @param {object} spec.viewport The initial camera viewport
-	   * @param {object} spec.viewport.width
-	   * @param {object} spec.viewport.height
-	   * @returns {geo.camera}
-	   */
-	  var camera = function (spec) {
-	    if (!(this instanceof camera)) {
-	      return new camera(spec);
-	    }
-
-	    var geo_event = __webpack_require__(9);
-
-	    spec = spec || {};
-	    object.call(this, spec);
-
-	    /**
-	     * The view matrix
-	     * @protected
-	     */
-	    this._view = util.mat4AsArray();
-
-	    /**
-	     * The projection matrix
-	     * @protected
-	     */
-	    this._proj = util.mat4AsArray();
-
-	    /**
-	     * The projection type (one of `this.constructor.projection`)
-	     * @protected
-	     */
-	    this._projection = null;
-
-	    /**
-	     * The transform matrix (view * proj)
-	     * @protected
-	     */
-	    this._transform = util.mat4AsArray();
-
-	    /**
-	     * The inverse transform matrix (view * proj)^-1
-	     * @protected
-	     */
-	    this._inverse = util.mat4AsArray();
-
-	    /**
-	     * Cached bounds object recomputed on demand.
-	     * @protected
-	     */
-	    this._bounds = null;
-
-	    /**
-	     * Cached "display" matrix recomputed on demand.
-	     * @see {@link geo.camera.display}
-	     * @protected
-	     */
-	    this._display = null;
-
-	    /**
-	     * Cached "world" matrix recomputed on demand.
-	     * @see {@link geo.camera.world}
-	     * @protected
-	     */
-	    this._world = null;
-
-	    /**
-	     * The viewport parameters size and offset.
-	     * @property {number} height Viewport height in pixels
-	     * @property {number} width Viewport width in pixels
-	     * @protected
-	     */
-	    this._viewport = {width: 1, height: 1};
-
-	    /**
-	     * Set up the projection matrix for the current projection type.
-	     * @protected
-	     */
-	    this._createProj = function () {
-	      var s = this.constructor.bounds.near / this.constructor.bounds.far;
-
-	      // call mat4.frustum or mat4.ortho here
-	      if (this._projection === 'perspective') {
-	        mat4.frustum(
-	          this._proj,
-	          this.constructor.bounds.left * s,
-	          this.constructor.bounds.right * s,
-	          this.constructor.bounds.bottom * s,
-	          this.constructor.bounds.top * s,
-	          -this.constructor.bounds.near,
-	          -this.constructor.bounds.far
-	        );
-	      } else if (this._projection === 'parallel') {
-	        mat4.ortho(
-	          this._proj,
-	          this.constructor.bounds.left,
-	          this.constructor.bounds.right,
-	          this.constructor.bounds.bottom,
-	          this.constructor.bounds.top,
-	          this.constructor.bounds.near,
-	          this.constructor.bounds.far
-	        );
-	      }
-	    };
-
-	    /**
-	     * Update the internal state of the camera on change to camera
-	     * parameters.
-	     * @protected
-	     */
-	    this._update = function () {
-	      this._bounds = null;
-	      this._display = null;
-	      this._world = null;
-	      this._transform = camera.combine(this._proj, this._view);
-	      mat4.invert(this._inverse, this._transform);
-	      this.geoTrigger(geo_event.camera.view, {
-	        camera: this
-	      });
-	    };
-
-	    /**
-	     * Getter/setter for the view matrix.
-	     * @note copies the matrix value on set.
-	     */
-	    Object.defineProperty(this, 'view', {
-	      get: function () {
-	        return this._view;
-	      },
-	      set: function (view) {
-	        mat4.copy(this._view, view);
-	        this._update();
-	      }
-	    });
-
-	    /**
-	     * Getter/setter for the view bounds.
-	     *
-	     * If not provided, near and far bounds will be set to [-1, 1] by
-	     * default.  We will probably want to change this to a unit specific
-	     * value initialized by the map when drawing true 3D objects or
-	     * tilting the camera.
-	     *
-	     * Returned near/far bounds are also -1, 1 for the moment.
-	     */
-	    Object.defineProperty(this, 'bounds', {
-	      get: function () {
-	        if (this._bounds === null) {
-	          this._bounds = this._getBounds();
-	        }
-	        return this._bounds;
-	      },
-	      set: function (bounds) {
-	        this._setBounds(bounds);
-	        this._update();
-	      }
-	    });
-
-	    /**
-	     * Getter for the "display" matrix.  This matrix converts from
-	     * world coordinates into display coordinates.  This matrix exists to
-	     * generate matrix3d css transforms that can be used in layers that
-	     * render on the DOM.
-	     */
-	    Object.defineProperty(this, 'display', {
-	      get: function () {
-	        var mat;
-	        if (this._display === null) {
-	          mat = camera.affine(
-	            {x: 1, y: 1}, // translate to: [0, 2] x [0, 2]
-	            {
-	              x: this.viewport.width / 2,
-	              y: this.viewport.height / -2
-	            }             // scale to: [0, width] x [-height, 0]
-	          );
-
-	          // applies mat to the transform (world -> normalized)
-	          this._display = camera.combine(
-	            mat,
-	            this._transform
-	          );
-	        }
-	        return this._display;
-	      }
-	    });
-
-	    /**
-	     * Getter for the "world" matrix.  This matrix converts from
-	     * display coordinates into world coordinates.  This is constructed
-	     * by inverting the "display" matrix.
-	     */
-	    Object.defineProperty(this, 'world', {
-	      get: function () {
-	        if (this._world === null) {
-	          this._world = mat4.invert(
-	            util.mat4AsArray(),
-	            this.display
-	          );
-	        }
-	        return this._world;
-	      }
-	    });
-
-	    /**
-	     * Getter/setter for the projection type.
-	     */
-	    Object.defineProperty(this, 'projection', {
-	      get: function () {
-	        return this._projection;
-	      },
-	      set: function (type) {
-	        if (!this.constructor.projection[type]) {
-	          throw new Error('Unsupported projection type: ' + type);
-	        }
-	        if (type !== this._projection) {
-	          this._projection = type;
-	          this._createProj();
-	          this._update();
-	          this.geoTrigger(geo_event.camera.projection, {
-	            camera: this,
-	            projection: type
-	          });
-	        }
-	      }
-	    });
-
-	    /**
-	     * Getter for the projection matrix (when applicable).
-	     * This generally shouldn't be modified directly because
-	     * the rest of the code assumes that the clipping bounds
-	     * are [-1, -1, -1] to [1, 1, 1] in camera coordinates.
-	     */
-	    Object.defineProperty(this, 'projectionMatrix', {
-	      get: function () {
-	        return this._proj;
-	      }
-	    });
-
-	    /**
-	     * Getter for the transform matrix.
-	     */
-	    Object.defineProperty(this, 'transform', {
-	      get: function () {
-	        return this._transform;
-	      }
-	    });
-
-	    /**
-	     * Getter for the inverse transform matrix.
-	     */
-	    Object.defineProperty(this, 'inverse', {
-	      get: function () {
-	        return this._inverse;
-	      }
-	    });
-
-	    /**
-	     * Getter/setter for the viewport.
-	     *
-	     * The viewport consists of a width and height in pixels, plus a left and
-	     * top offset in pixels.  The offsets are only used to determine if pixel
-	     * alignment is possible.
-	     */
-	    Object.defineProperty(this, 'viewport', {
-	      get: function () {
-	        return {
-	          width: this._viewport.width, height: this._viewport.height,
-	          left: this._viewport.left, top: this._viewport.top
-	        };
-	      },
-	      set: function (viewport) {
-	        if (!(viewport.width > 0 &&
-	              viewport.height > 0)) {
-	          throw new Error('Invalid viewport dimensions');
-	        }
-	        if (viewport.width === this._viewport.width &&
-	            viewport.height === this._viewport.height) {
-	          return;
-	        }
-
-	        // apply scaling to the view matrix to account for the new aspect ratio
-	        // without changing the apparent zoom level
-	        if (this._viewport.width && this._viewport.height) {
-	          this._scale([
-	            this._viewport.width / viewport.width,
-	            this._viewport.height / viewport.height,
-	            1
-	          ]);
-
-	          // translate by half the difference to keep the center the same
-	          this._translate([
-	            (viewport.width - this._viewport.width) / 2,
-	            (viewport.height - this._viewport.height) / 2,
-	            0
-	          ]);
-	        }
-
-	        this._viewport = {
-	          width: viewport.width, height: viewport.height,
-	          left: viewport.left, top: viewport.top
-	        };
-	        this._update();
-	        this.geoTrigger(geo_event.camera.viewport, {
-	          camera: this,
-	          viewport: this.viewport
-	        });
-	      }
-	    });
-
-	    /**
-	     * Reset the view matrix to its initial (identity) state.
-	     * @protected
-	     * @returns {this} Chainable
-	     */
-	    this._resetView = function () {
-	      mat4.identity(this._view);
-	      return this;
-	    };
-
-	    /**
-	     * Uses `mat4.translate` to translate the camera by the given vector amount.
-	     * @protected
-	     * @param {vec3|Array} offset The camera translation vector
-	     * @returns {this} Chainable
-	     */
-	    this._translate = function (offset) {
-	      mat4.translate(this._view, this._view, offset);
-	    };
-
-	    /**
-	     * Uses `mat4.scale` to scale the camera by the given vector amount.
-	     * @protected
-	     * @param {vec3|Array} scale The scaling vector
-	     * @returns {this} Chainable
-	     */
-	    this._scale = function (scale) {
-	      mat4.scale(this._view, this._view, scale);
-	    };
-
-	    /**
-	     * Project a vec4 from world space into clipped space [-1, 1] in place
-	     * @protected
-	     * @param {vec4} point The point in world coordinates (mutated)
-	     * @returns {vec4} The point in clip space coordinates
-	     */
-	    this._worldToClip4 = function (point) {
-	      return camera.applyTransform(this._transform, point);
-	    };
-
-	    /**
-	     * Project a vec4 from clipped space into world space in place
-	     * @protected
-	     * @param {vec4} point The point in clipped coordinates (mutated)
-	     * @returns {vec4} The point in world space coordinates
-	     */
-	    this._clipToWorld4 = function (point) {
-	      return camera.applyTransform(this._inverse, point);
-	    };
-
-	    /**
-	     * Apply the camera's projection transform to the given point.
-	     * @param {vec4} pt a point in clipped coordinates
-	     * @returns {vec4} the point in normalized coordinates
-	     */
-	    this.applyProjection = function (pt) {
-	      var w;
-	      if (this._projection === 'perspective') {
-	        w = 1 / (pt[3] || 1);
-	        pt[0] = w * pt[0];
-	        pt[1] = w * pt[1];
-	        pt[2] = w * pt[2];
-	        pt[3] = w;
-	      } else {
-	        pt[3] = 1;
-	      }
-	      return pt;
-	    };
-
-	    /**
-	     * Unapply the camera's projection transform from the given point.
-	     * @param {vec4} pt a point in normalized coordinates
-	     * @returns {vec4} the point in clipped coordinates
-	     */
-	    this.unapplyProjection = function (pt) {
-	      var w;
-	      if (this._projection === 'perspective') {
-	        w = pt[3] || 1;
-	        pt[0] = w * pt[0];
-	        pt[1] = w * pt[1];
-	        pt[2] = w * pt[2];
-	        pt[3] = w;
-	      } else {
-	        pt[3] = 1;
-	      }
-	      return pt;
-	    };
-
-	    /**
-	     * Project a vec4 from world space into viewport space.
-	     * @param {vec4} point The point in world coordinates (mutated)
-	     * @returns {vec4} The point in display coordinates
-	     *
-	     * @note For the moment, this computation assumes the following:
-	     *   * point[3] > 0
-	     *   * depth range [0, 1]
-	     *
-	     * The clip space z and w coordinates are returned with the window
-	     * x/y coordinates.
-	     */
-	    this.worldToDisplay4 = function (point) {
-	      // This is because z = 0 is the far plane exposed to the user, but
-	      // internally the far plane is at -2.
-	      point[2] -= 2;
-
-	      // convert to clip space
-	      this._worldToClip4(point);
-
-	      // apply projection specific transformation
-	      point = this.applyProjection(point);
-
-	      // convert to display space
-	      point[0] = this._viewport.width * (1 + point[0]) / 2.0;
-	      point[1] = this._viewport.height * (1 - point[1]) / 2.0;
-	      point[2] = (1 + point[2]) / 2.0;
-	      return point;
-	    };
-
-	    /**
-	     * Project a vec4 from display space into world space in place.
-	     * @param {vec4} point The point in display coordinates (mutated)
-	     * @returns {vec4} The point in world space coordinates
-	     *
-	     * @note For the moment, this computation assumes the following:
-	     *   * point[3] > 0
-	     *   * depth range [0, 1]
-	     */
-	    this.displayToWorld4 = function (point) {
-	      // convert to clip space
-	      point[0] = 2 * point[0] / this._viewport.width - 1;
-	      point[1] = -2 * point[1] / this._viewport.height + 1;
-	      point[2] = 2 * point[2] - 1;
-
-	      // invert projection transform
-	      point = this.unapplyProjection(point);
-
-	      // convert to world coordinates
-	      this._clipToWorld4(point);
-
-	      // move far surface to z = 0
-	      point[2] += 2;
-	      return point;
-	    };
-
-	    /**
-	     * Project a point object from world space into viewport space.
-	     * @param {object} point The point in world coordinates
-	     * @param {number} point.x
-	     * @param {number} point.y
-	     * @returns {object} The point in display coordinates
-	     */
-	    this.worldToDisplay = function (point) {
-	      // define some magic numbers:
-	      var z = 0, // z coordinate of the surface in world coordinates
-	          w = 1; // enables perspective divide (i.e. for point conversion)
-	      point = this.worldToDisplay4(
-	        [point.x, point.y, z, w]
-	      );
-	      return {x: point[0], y: point[1], z: point[2]};
-	    };
-
-	    /**
-	     * Project a point object from viewport space into world space.
-	     * @param {object} point The point in display coordinates
-	     * @param {number} point.x
-	     * @param {number} point.y
-	     * @returns {object} The point in world coordinates
-	     */
-	    this.displayToWorld = function (point) {
-	      // define some magic numbers:
-	      var z = 1, // the z coordinate of the surface
-	          w = 2; // perspective divide at z = 1
-	      point = this.displayToWorld4(
-	        [point.x, point.y, z, w]
-	      );
-	      return {x: point[0], y: point[1]};
-	    };
-
-	    /**
-	     * Calculate the current bounds in world coordinates from the
-	     * current view matrix.  This computes a matrix vector multiplication
-	     * so the result is cached for public facing methods.
-	     *
-	     * @protected
-	     * @returns {object} bounds object
-	     */
-	    this._getBounds = function () {
-	      var ul, ur, ll, lr, bds = {};
-
-	      // get corners
-	      ul = this.displayToWorld({x: 0, y: 0});
-	      ur = this.displayToWorld({x: this._viewport.width, y: 0});
-	      ll = this.displayToWorld({x: 0, y: this._viewport.height});
-	      lr = this.displayToWorld({
-	        x: this._viewport.width,
-	        y: this._viewport.height
-	      });
-
-	      bds.left = Math.min(ul.x, ur.x, ll.x, lr.x);
-	      bds.bottom = Math.min(ul.y, ur.y, ll.y, lr.y);
-	      bds.right = Math.max(ul.x, ur.x, ll.x, lr.x);
-	      bds.top = Math.max(ul.y, ur.y, ll.y, lr.y);
-
-	      return bds;
-	    };
-
-	    /**
-	     * Sets the view matrix so that the given world bounds
-	     * are in view.  To account for the viewport aspect ratio,
-	     * the resulting bounds may be larger in width or height than
-	     * the requested bound, but should be centered in the frame.
-	     *
-	     * @protected
-	     * @param {object} bounds
-	     * @param {number} bounds.left
-	     * @param {number} bounds.right
-	     * @param {number} bounds.bottom
-	     * @param {number} bounds.top
-	     * @param {number?} bounds.near Currently ignored
-	     * @param {number?} bounds.far Currently ignored
-	     * @return {this} Chainable
-	     */
-	    this._setBounds = function (bounds) {
-	      var size = {
-	        width: bounds.right - bounds.left,
-	        height: bounds.top - bounds.bottom
-	      };
-	      var center = {
-	        x: (bounds.left + bounds.right) / 2,
-	        y: (bounds.bottom + bounds.top) / 2
-	      };
-
-	      this._viewFromCenterSizeRotation(center, size, 0);
-	      return this;
-	    };
-
-	    /**
-	     * Sets the view matrix so that the given world center is centered, at
-	     * least a certain width and height are visible, and a rotation is applied.
-	     * The resulting bounds may be larger in width or height than the values if
-	     * the viewport is a different aspect ratio.
-	     *
-	     * @protected
-	     * @param {object} center
-	     * @param {number} center.x
-	     * @param {number} center.y
-	     * @param {object} size
-	     * @param {number} size.width
-	     * @param {number} size.height
-	     * @param {number} rotation in clockwise radians.  Optional
-	     * @return {this} Chainable
-	     */
-	    this._viewFromCenterSizeRotation = function (center, size, rotation) {
-	      var translate = util.vec3AsArray(),
-	          scale = util.vec3AsArray(),
-	          c_ar, v_ar, w, h;
-
-	      // reset view to the identity
-	      this._resetView();
-
-	      w = Math.abs(size.width);
-	      h = Math.abs(size.height);
-	      c_ar = w / h;
-	      v_ar = this._viewport.width / this._viewport.height;
-
-	      if (c_ar >= v_ar) {
-	        // grow camera bounds vertically
-	        h = w / v_ar;
-	        scale[0] = 2 / w;
-	        scale[1] = 2 / h;
-	      } else {
-	        // grow bounds horizontally
-	        w = h * v_ar;
-	        scale[0] = 2 / w;
-	        scale[1] = 2 / h;
-	      }
-
-	      scale[2] = 1;
-	      this._scale(scale);
-
-	      if (rotation) {
-	        this._rotate(rotation);
-	      }
-
-	      // translate to the new center.
-	      translate[0] = -center.x;
-	      translate[1] = -center.y;
-	      translate[2] = 0;
-
-	      this._translate(translate);
-
-	      return this;
-	    };
-
-	    /**
-	     * Public exposure of the viewFromCenterSizeRotation function.
-	     */
-	    this.viewFromCenterSizeRotation = function (center, size, rotation) {
-	      this._viewFromCenterSizeRotation(center, size, rotation);
-	      this._update();
-	      return this;
-	    };
-
-	    /**
-	     * Pans the view matrix by the given amount.
-	     *
-	     * @param {object} offset The delta in world space coordinates.
-	     * @param {number} offset.x
-	     * @param {number} offset.y
-	     * @param {number} [offset.z=0]
-	     */
-	    this.pan = function (offset) {
-	      if (!offset.x && !offset.y && !offset.z) {
-	        return;
-	      }
-	      this._translate([
-	        offset.x,
-	        offset.y,
-	        offset.z || 0
-	      ]);
-	      this._update();
-	    };
-
-	    /**
-	     * Zooms the view matrix by the given amount.
-	     *
-	     * @param {number} zoom The zoom scale to apply
-	     */
-	    this.zoom = function (zoom) {
-	      if (zoom === 1) {
-	        return;
-	      }
-	      mat4.scale(this._view, this._view, [
-	        zoom,
-	        zoom,
-	        zoom
-	      ]);
-	      this._update();
-	    };
-
-	    /**
-	     * Rotate the view matrix by the given amount.
-	     *
-	     * @param {number} rotation Counter-clockwise rotation angle in radians.
-	     * @param {object} center Center of rotation in world space coordinates.
-	     * @param {vec3} axis acis of rotation.  Defaults to [0, 0, -1]
-	     */
-	    this._rotate = function (rotation, center, axis) {
-	      if (!rotation) {
-	        return;
-	      }
-	      axis = axis || [0, 0, -1];
-	      if (!center) {
-	        center = [0, 0, 0];
-	      } else if (center.x !== undefined) {
-	        center = [center.x || 0, center.y || 0, center.z || 0];
-	      }
-	      var invcenter = [-center[0], -center[1], -center[2]];
-	      mat4.translate(this._view, this._view, center);
-	      mat4.rotate(this._view, this._view, rotation, axis);
-	      mat4.translate(this._view, this._view, invcenter);
-	    };
-
-	    /**
-	     * Returns a CSS transform that converts (by default) from world coordinates
-	     * into display coordinates.  This allows users of this module to
-	     * position elements using world coordinates directly inside DOM
-	     * elements.
-	     *
-	     * @note This transform will not take into account projection specific
-	     * transforms.  For perspective projections, one can use the properties
-	     * `perspective` and `perspective-origin` to apply the projection
-	     * in css directly.
-	     *
-	     * @param {string} transform The transform to return
-	     *   * display
-	     *   * world
-	     * @returns {string} The css transform string
-	     */
-	    this.css = function (transform) {
-	      var m;
-	      switch ((transform || '').toLowerCase()) {
-	        case 'display':
-	        case '':
-	          m = this.display;
-	          break;
-	        case 'world':
-	          m = this.world;
-	          break;
-	        default:
-	          throw new Error('Unknown transform ' + transform);
-	      }
-	      return camera.css(m);
-	    };
-
-	    /**
-	     * Represent a glmatrix as a pretty-printed string.
-	     * @param {mat4} mat A 4 x 4 matrix
-	     * @param {number} prec The number of decimal places
-	     * @returns {string}
-	     */
-	    this.ppMatrix = function (mat, prec) {
-	      var t = mat;
-	      prec = prec || 2;
-	      function f(i) {
-	        var d = t[i], s = d.toExponential(prec);
-	        if (d >= 0) {
-	          s = ' ' + s;
-	        }
-	        return s;
-	      }
-	      return [
-	        [f(0), f(4), f(8), f(12)].join(' '),
-	        [f(1), f(5), f(9), f(13)].join(' '),
-	        [f(2), f(6), f(10), f(14)].join(' '),
-	        [f(3), f(7), f(11), f(15)].join(' ')
-	      ].join('\n');
-	    };
-
-	    /**
-	     * Pretty print the transform matrix.
-	     */
-	    this.toString = function () {
-	      return this.ppMatrix(this._transform);
-	    };
-
-	    /**
-	     * Return a debugging string of the current camera state.
-	     */
-	    this.debug = function () {
-	      return [
-	        'bounds',
-	        JSON.stringify(this.bounds),
-	        'view:',
-	        this.ppMatrix(this._view),
-	        'projection:',
-	        this.ppMatrix(this._proj),
-	        'transform:',
-	        this.ppMatrix(this._transform)
-	      ].join('\n');
-	    };
-
-	    /**
-	     * Represent the value of the camera as its transform matrix.
-	     */
-	    this.valueOf = function () {
-	      return this._transform;
-	    };
-
-	    // initialize the view matrix
-	    this._resetView();
-
-	    // set up the projection matrix
-	    this.projection = spec.projection || 'parallel';
-
-	    // initialize the viewport
-	    if (spec.viewport) {
-	      this.viewport = spec.viewport;
-	    }
-
-	    // trigger an initial update to set up the camera state
-	    this._update();
-
-	    return this;
-	  };
-
-	  /**
-	   * Supported projection types.
-	   */
-	  camera.projection = {
-	    perspective: true,
-	    parallel: true
-	  };
-
-	  /**
-	   * Camera clipping bounds, probably shouldn't be modified.
-	   */
-	  camera.bounds = {
-	    left: -1,
-	    right: 1,
-	    top: 1,
-	    bottom: -1,
-	    far: -2,
-	    near: -1
-	  };
-
-	  /**
-	   * Output a mat4 as a css transform.
-	   * @param {mat4} t A matrix transform
-	   * @returns {string} A css transform string
-	   */
-	  camera.css = function (t) {
-	    return (
-	      'matrix3d(' +
-	        [
-	          t[0].toFixed(20),
-	          t[1].toFixed(20),
-	          t[2].toFixed(20),
-	          t[3].toFixed(20),
-	          t[4].toFixed(20),
-	          t[5].toFixed(20),
-	          t[6].toFixed(20),
-	          t[7].toFixed(20),
-	          t[8].toFixed(20),
-	          t[9].toFixed(20),
-	          t[10].toFixed(20),
-	          t[11].toFixed(20),
-	          t[12].toFixed(20),
-	          t[13].toFixed(20),
-	          t[14].toFixed(20),
-	          t[15].toFixed(20)
-	        ].join(',') +
-	      ')'
-	    );
-	  };
-
-	  /**
-	   * Generate a mat4 representing an affine coordinate transformation.
-	   *
-	   * For the following affine transform:
-	   *
-	   *    x |-> m * (x + a) + b
-	   *
-	   * applies the css transform:
-	   *
-	   *    translate(b) scale(m) translate(a)
-	   *
-	   * @param {object?} pre Coordinate offset **before** scaling
-	   * @param {object?} scale Coordinate scaling
-	   * @param {object?} post Coordinate offset **after** scaling
-	   * @returns {mat4} The new transform matrix
-	   */
-	  camera.affine = function (pre, scale, post) {
-	    var mat = util.mat4AsArray();
-
-	    // Note: mat4 operations are applied to the right side of the current
-	    // transform, so the first applied here is the last applied to the
-	    // coordinate.
-	    if (post) {
-	      mat4.translate(mat, mat, [post.x || 0, post.y || 0, post.z || 0]);
-	    }
-	    if (scale) {
-	      mat4.scale(mat, mat, [scale.x || 1, scale.y || 1, scale.z || 1]);
-	    }
-	    if (pre) {
-	      mat4.translate(mat, mat, [pre.x || 0, pre.y || 0, pre.z || 0]);
-	    }
-	    return mat;
-	  };
-
-	  /**
-	   * Apply the given transform matrix to a point in place.
-	   * @param {mat4} t
-	   * @param {vec4} pt
-	   * @returns {vec4}
-	   */
-	  camera.applyTransform = function (t, pt) {
-	    return vec4.transformMat4(pt, pt, t);
-	  };
-
-	  /**
-	   * Combine two transforms by multiplying their matrix representations.
-	   * @note The second transform provided will be the first applied in the
-	   * coordinate transform.
-	   * @param {mat4} A
-	   * @param {mat4} B
-	   * @returns {mat4} A * B
-	   */
-	  camera.combine = function (A, B) {
-	    return mat4.multiply(util.mat4AsArray(), A, B);
-	  };
-
-	  inherit(camera, object);
-	  module.exports = camera;
-	})();
-
-
-/***/ }),
-/* 212 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class pointFeature
-	 *
-	 * @class geo.pointFeature
-	 * @param {object} arg Options object
-	 * @param {boolean} arg.clustering Enable point clustering
-	 * @extends geo.feature
-	 * @returns {geo.pointFeature}
-	 */
-	var pointFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof pointFeature)) {
-	    return new pointFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var timestamp = __webpack_require__(209);
-	  var ClusterGroup = __webpack_require__(205);
-	  var geo_event = __webpack_require__(9);
-	  var util = __webpack_require__(83);
-	  var kdbush = __webpack_require__(213);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      m_rangeTree = null,
-	      m_rangeTreeTime = timestamp(),
-	      s_data = this.data,
-	      m_maxRadius = 0,
-	      m_clustering = arg.clustering,
-	      m_clusterTree = null,
-	      m_allData = [],
-	      m_lastZoom = null,
-	      m_ignoreData = false; // flag to ignore data() calls made locally
-
-	  this.featureType = 'point';
-
-	  /**
-	   * Get/Set clustering option
-	   *
-	   * @returns {geo.pointFeature|boolean}
-	   */
-	  this.clustering = function (val) {
-	    if (val === undefined) {
-	      return m_clustering;
-	    }
-	    if (m_clustering && !val) {
-	      // Throw out the cluster tree and reset the data
-	      m_clusterTree = null;
-	      m_clustering = false;
-	      s_data(m_allData);
-	    } else if (val && m_clustering !== val) {
-	      // Generate the cluster tree
-	      m_clustering = val;
-	      m_this._clusterData();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Generate the clustering tree from positions.  This might be async in the
-	   * future.
-	   */
-	  this._clusterData = function () {
-	    if (!m_clustering) {
-	      // clustering is not enabled, so this is a no-op
-	      return;
-	    }
-
-	    // set clustering options to default if an options argument wasn't supplied
-	    var opts = m_clustering === true ? {radius: 0.01} : m_clustering;
-
-	    // generate the cluster tree from the raw data
-	    var position = m_this.position();
-	    m_clusterTree = new ClusterGroup(
-	        opts, m_this.layer().width(), m_this.layer().height());
-
-	    m_allData.forEach(function (d, i) {
-
-	      // for each point in the data set normalize the coordinate
-	      // representation and add the point to the cluster treee
-	      var pt = util.normalizeCoordinates(position(d, i));
-	      pt.index = i;
-	      m_clusterTree.addPoint(pt);
-	    });
-
-	    // reset the last zoom state and trigger a redraw at the current zoom level
-	    m_lastZoom = null;
-	    m_this._handleZoom(m_this.layer().map().zoom());
-	  };
-
-	  /**
-	   * Handle zoom events for clustering.  This keeps track of the last
-	   * clustering level, and only regenerates the displayed points when the
-	   * zoom level changes.
-	   */
-	  this._handleZoom = function (zoom) {
-	    // get the current zoom level rounded down
-	    var z = Math.floor(zoom);
-
-	    if (!m_clustering || z === m_lastZoom) {
-	      // short cut when there is nothing to do
-	      return;
-	    }
-
-	    // store the current zoom level privately
-	    m_lastZoom = z;
-
-	    // get the raw data elements for the points at the current level
-	    var data = m_clusterTree.points(z).map(function (d) {
-	      return m_allData[d.index];
-	    });
-
-	    // append the clusters at the current level
-	    m_clusterTree.clusters(z).forEach(function (d) {
-	      // mark the datum as a cluster for accessor methods
-	      d.__cluster = true;
-
-	      // store all of the data objects for each point in the cluster as __data
-	      d.__data = [];
-	      d.obj.each(function (e) {
-	        d.__data.push(m_allData[e.index]);
-	      });
-	      data.push(d);
-	    });
-
-	    // prevent recomputing the clustering and set the new data array
-	    m_ignoreData = true;
-	    m_this.data(data);
-	  };
-
-	  /**
-	   * Get/Set position
-	   *
-	   * @returns {geo.pointFeature}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else {
-	      var isFunc = util.isFunction(val);
-	      m_this.style('position', function (d, i) {
-	        if (d.__cluster) {
-	          return d;
-	        } else if (isFunc) {
-	          return val(d, i);
-	        } else {
-	          return val;
-	        }
-	      });
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Update the current range tree object.  Should be called whenever the
-	   * data changes.
-	   */
-	  this._updateRangeTree = function () {
-	    if (m_rangeTreeTime.getMTime() >= m_this.dataTime().getMTime()) {
-	      return;
-	    }
-	    var pts, position,
-	        radius = m_this.style.get('radius'),
-	        stroke = m_this.style.get('stroke'),
-	        strokeWidth = m_this.style.get('strokeWidth');
-
-	    position = m_this.position();
-
-	    m_maxRadius = 0;
-
-	    // create an array of positions in geo coordinates
-	    pts = m_this.data().map(function (d, i) {
-	      var pt = position(d);
-
-	      // store the maximum point radius
-	      m_maxRadius = Math.max(
-	        m_maxRadius,
-	        radius(d, i) + (stroke(d, i) ? strokeWidth(d, i) : 0)
-	      );
-
-	      return [pt.x, pt.y];
-	    });
-
-	    m_rangeTree = kdbush(pts);
-	    m_rangeTreeTime.modified();
-	  };
-
-	  /**
-	   * Returns an array of datum indices that contain the given point.
-	   * Largely adapted from wigglemaps pointQuerier:
-	   *
-	   * https://github.com/dotskapes/wigglemaps/blob/cf5bed3fbfe2c3e48d31799462a80c564be1fb60/src/query/PointQuerier.js
-	   */
-	  this.pointSearch = function (p) {
-	    var min, max, data, idx = [], found = [], ifound = [], map, pt,
-	        corners,
-	        stroke = m_this.style.get('stroke'),
-	        strokeWidth = m_this.style.get('strokeWidth'),
-	        radius = m_this.style.get('radius');
-
-	    data = m_this.data();
-	    if (!data || !data.length) {
-	      return {
-	        found: [],
-	        index: []
-	      };
-	    }
-
-	    // We need to do this before we find corners, since the max radius is
-	    // determined then
-	    m_this._updateRangeTree();
-
-	    map = m_this.layer().map();
-	    pt = map.gcsToDisplay(p);
-	    // check all corners to make sure we handle rotations
-	    corners = [
-	      map.displayToGcs({x: pt.x - m_maxRadius, y: pt.y - m_maxRadius}),
-	      map.displayToGcs({x: pt.x + m_maxRadius, y: pt.y - m_maxRadius}),
-	      map.displayToGcs({x: pt.x - m_maxRadius, y: pt.y + m_maxRadius}),
-	      map.displayToGcs({x: pt.x + m_maxRadius, y: pt.y + m_maxRadius})
-	    ];
-	    min = {
-	      x: Math.min(corners[0].x, corners[1].x, corners[2].x, corners[3].x),
-	      y: Math.min(corners[0].y, corners[1].y, corners[2].y, corners[3].y)
-	    };
-	    max = {
-	      x: Math.max(corners[0].x, corners[1].x, corners[2].x, corners[3].x),
-	      y: Math.max(corners[0].y, corners[1].y, corners[2].y, corners[3].y)
-	    };
-
-	    // Find points inside the bounding box
-	    idx = m_rangeTree.range(min.x, min.y, max.x, max.y);
-
-	    // Filter by circular region
-	    idx.forEach(function (i) {
-	      var d = data[i],
-	          p = m_this.position()(d, i),
-	          dx, dy, rad, rad2;
-
-	      rad = radius(data[i], i);
-	      rad += stroke(data[i], i) ? strokeWidth(data[i], i) : 0;
-	      rad2 = rad * rad;
-	      p = map.gcsToDisplay(p);
-	      dx = p.x - pt.x;
-	      dy = p.y - pt.y;
-	      if (dx * dx + dy * dy <= rad2) {
-	        found.push(d);
-	        ifound.push(i);
-	      }
-	    });
-
-	    return {
-	      found: found,
-	      index: ifound
-	    };
-	  };
-
-	  /**
-	   * Returns an array of datum indices that are contained in the given box.
-	   */
-	  this.boxSearch = function (lowerLeft, upperRight) {
-	    var pos = m_this.position(),
-	        idx = [];
-	    // TODO: use the range tree
-	    m_this.data().forEach(function (d, i) {
-	      var p = pos(d);
-	      if (p.x >= lowerLeft.x &&
-	          p.x <= upperRight.x &&
-	          p.y >= lowerLeft.y &&
-	          p.y <= upperRight.y
-	      ) {
-	        idx.push(i);
-	      }
-	    });
-	    return idx;
-	  };
-
-	  /**
-	   * Overloaded data method that updates the internal range tree on write.
-	   */
-	  this.data = function (data) {
-	    if (data === undefined) {
-	      return s_data();
-	    }
-	    if (!m_ignoreData) {
-	      m_allData = data;
-	    }
-	    if (m_clustering && !m_ignoreData) {
-	      m_this._clusterData();
-	    } else {
-	      s_data(data);
-	    }
-	    m_ignoreData = false;
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        radius: 5.0,
-	        stroke: true,
-	        strokeColor: { r: 0.851, g: 0.604, b: 0.0 },
-	        strokeWidth: 1.25,
-	        strokeOpacity: 1.0,
-	        fillColor: { r: 1.0, g: 0.839, b: 0.439 },
-	        fill: true,
-	        fillOpacity: 0.8,
-	        sprites: false,
-	        sprites_image: null,
-	        position: function (d) { return d; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.position !== undefined) {
-	      defaultStyle.position = arg.position;
-	    }
-
-	    m_this.style(defaultStyle);
-	    if (defaultStyle.position) {
-	      m_this.position(defaultStyle.position);
-	    }
-	    m_this.dataTime().modified();
-
-	    // bind to the zoom handler for point clustering
-	    m_this.geoOn(geo_event.zoom, function (evt) {
-	      m_this._handleZoom(evt.zoomLevel);
-	    });
-	  };
-
-	  return m_this;
-	};
-
-	/**
-	 * Object specification for a point feature.
-	 *
-	 * @extends geo.feature.spec // need to make a jsdoc plugin for this to work
-	 * @typedef geo.pointFeature.spec
-	 * @type {object}
-	 */
-
-	/**
-	 * Create a pointFeature from an object.
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.pointFeature.spec} spec The object specification
-	 * @returns {geo.pointFeature|null}
-	 */
-	pointFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'point';
-	  return feature.create(layer, spec);
-	};
-
-	pointFeature.capabilities = {
-	  /* core feature name -- support in any manner */
-	  feature: 'point'
-	};
-
-	inherit(pointFeature, feature);
-	module.exports = pointFeature;
-
-
-/***/ }),
-/* 213 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	var sort = __webpack_require__(214);
-	var range = __webpack_require__(215);
-	var within = __webpack_require__(216);
-
-	module.exports = kdbush;
-
-	function kdbush(points, getX, getY, nodeSize, ArrayType) {
-	    return new KDBush(points, getX, getY, nodeSize, ArrayType);
-	}
-
-	function KDBush(points, getX, getY, nodeSize, ArrayType) {
-	    getX = getX || defaultGetX;
-	    getY = getY || defaultGetY;
-	    ArrayType = ArrayType || Array;
-
-	    this.nodeSize = nodeSize || 64;
-	    this.points = points;
-
-	    this.ids = new ArrayType(points.length);
-	    this.coords = new ArrayType(points.length * 2);
-
-	    for (var i = 0; i < points.length; i++) {
-	        this.ids[i] = i;
-	        this.coords[2 * i] = getX(points[i]);
-	        this.coords[2 * i + 1] = getY(points[i]);
-	    }
-
-	    sort(this.ids, this.coords, this.nodeSize, 0, this.ids.length - 1, 0);
-	}
-
-	KDBush.prototype = {
-	    range: function (minX, minY, maxX, maxY) {
-	        return range(this.ids, this.coords, minX, minY, maxX, maxY, this.nodeSize);
-	    },
-
-	    within: function (x, y, r) {
-	        return within(this.ids, this.coords, x, y, r, this.nodeSize);
-	    }
-	};
-
-	function defaultGetX(p) { return p[0]; }
-	function defaultGetY(p) { return p[1]; }
-
-
-/***/ }),
-/* 214 */
-/***/ (function(module, exports) {
-
-	'use strict';
-
-	module.exports = sortKD;
-
-	function sortKD(ids, coords, nodeSize, left, right, depth) {
-	    if (right - left <= nodeSize) return;
-
-	    var m = Math.floor((left + right) / 2);
-
-	    select(ids, coords, m, left, right, depth % 2);
-
-	    sortKD(ids, coords, nodeSize, left, m - 1, depth + 1);
-	    sortKD(ids, coords, nodeSize, m + 1, right, depth + 1);
-	}
-
-	function select(ids, coords, k, left, right, inc) {
-
-	    while (right > left) {
-	        if (right - left > 600) {
-	            var n = right - left + 1;
-	            var m = k - left + 1;
-	            var z = Math.log(n);
-	            var s = 0.5 * Math.exp(2 * z / 3);
-	            var sd = 0.5 * Math.sqrt(z * s * (n - s) / n) * (m - n / 2 < 0 ? -1 : 1);
-	            var newLeft = Math.max(left, Math.floor(k - m * s / n + sd));
-	            var newRight = Math.min(right, Math.floor(k + (n - m) * s / n + sd));
-	            select(ids, coords, k, newLeft, newRight, inc);
-	        }
-
-	        var t = coords[2 * k + inc];
-	        var i = left;
-	        var j = right;
-
-	        swapItem(ids, coords, left, k);
-	        if (coords[2 * right + inc] > t) swapItem(ids, coords, left, right);
-
-	        while (i < j) {
-	            swapItem(ids, coords, i, j);
-	            i++;
-	            j--;
-	            while (coords[2 * i + inc] < t) i++;
-	            while (coords[2 * j + inc] > t) j--;
-	        }
-
-	        if (coords[2 * left + inc] === t) swapItem(ids, coords, left, j);
-	        else {
-	            j++;
-	            swapItem(ids, coords, j, right);
-	        }
-
-	        if (j <= k) left = j + 1;
-	        if (k <= j) right = j - 1;
-	    }
-	}
-
-	function swapItem(ids, coords, i, j) {
-	    swap(ids, i, j);
-	    swap(coords, 2 * i, 2 * j);
-	    swap(coords, 2 * i + 1, 2 * j + 1);
-	}
-
-	function swap(arr, i, j) {
-	    var tmp = arr[i];
-	    arr[i] = arr[j];
-	    arr[j] = tmp;
-	}
-
-
-/***/ }),
-/* 215 */
-/***/ (function(module, exports) {
-
-	'use strict';
-
-	module.exports = range;
-
-	function range(ids, coords, minX, minY, maxX, maxY, nodeSize) {
-	    var stack = [0, ids.length - 1, 0];
-	    var result = [];
-	    var x, y;
-
-	    while (stack.length) {
-	        var axis = stack.pop();
-	        var right = stack.pop();
-	        var left = stack.pop();
-
-	        if (right - left <= nodeSize) {
-	            for (var i = left; i <= right; i++) {
-	                x = coords[2 * i];
-	                y = coords[2 * i + 1];
-	                if (x >= minX && x <= maxX && y >= minY && y <= maxY) result.push(ids[i]);
-	            }
-	            continue;
-	        }
-
-	        var m = Math.floor((left + right) / 2);
-
-	        x = coords[2 * m];
-	        y = coords[2 * m + 1];
-
-	        if (x >= minX && x <= maxX && y >= minY && y <= maxY) result.push(ids[m]);
-
-	        var nextAxis = (axis + 1) % 2;
-
-	        if (axis === 0 ? minX <= x : minY <= y) {
-	            stack.push(left);
-	            stack.push(m - 1);
-	            stack.push(nextAxis);
-	        }
-	        if (axis === 0 ? maxX >= x : maxY >= y) {
-	            stack.push(m + 1);
-	            stack.push(right);
-	            stack.push(nextAxis);
-	        }
-	    }
-
-	    return result;
-	}
-
-
-/***/ }),
-/* 216 */
-/***/ (function(module, exports) {
-
-	'use strict';
-
-	module.exports = within;
-
-	function within(ids, coords, qx, qy, r, nodeSize) {
-	    var stack = [0, ids.length - 1, 0];
-	    var result = [];
-	    var r2 = r * r;
-
-	    while (stack.length) {
-	        var axis = stack.pop();
-	        var right = stack.pop();
-	        var left = stack.pop();
-
-	        if (right - left <= nodeSize) {
-	            for (var i = left; i <= right; i++) {
-	                if (sqDist(coords[2 * i], coords[2 * i + 1], qx, qy) <= r2) result.push(ids[i]);
-	            }
-	            continue;
-	        }
-
-	        var m = Math.floor((left + right) / 2);
-
-	        var x = coords[2 * m];
-	        var y = coords[2 * m + 1];
-
-	        if (sqDist(x, y, qx, qy) <= r2) result.push(ids[m]);
-
-	        var nextAxis = (axis + 1) % 2;
-
-	        if (axis === 0 ? qx - r <= x : qy - r <= y) {
-	            stack.push(left);
-	            stack.push(m - 1);
-	            stack.push(nextAxis);
-	        }
-	        if (axis === 0 ? qx + r >= x : qy + r >= y) {
-	            stack.push(m + 1);
-	            stack.push(right);
-	            stack.push(nextAxis);
-	        }
-	    }
-
-	    return result;
-	}
-
-	function sqDist(ax, ay, bx, by) {
-	    var dx = ax - bx;
-	    var dy = ay - by;
-	    return dx * dx + dy * dy;
-	}
-
-
-/***/ }),
-/* 217 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Polygon feature specification.
-	 *
-	 * @typedef {geo.feature.spec} geo.polygonFeature.spec
-	 * @param {object|Function} [position] Position of the data.  Default is
-	 *   (data).
-	 * @param {object|Function} [polygon] Polygons from the data.  Default is
-	 *   (data).  Typically, the data is an array of polygons, each of which is of
-	 *   the form {outer: [(coordinates)], inner: [[(coordinates of first hole)],
-	 *   [(coordinates of second hole)], ...]}.  The inner record is optional.
-	 *   Alternately, if there are no holes, a polygon can just be an array of
-	 *   coordinates in the form of geo.geoPosition.  The first and last point of
-	 *   each polygon may be the same.
-	 * @param {object} [style] Style object with default style options.
-	 * @param {boolean|Function} [style.fill] True to fill polygon.  Defaults to
-	 *   true.
-	 * @param {object|Function} [style.fillColor] Color to fill each polygon.  The
-	 *   color can vary by vertex.  Colors can be css names or hex values, or an
-	 *   object with r, g, b on a [0-1] scale.
-	 * @param {number|Function} [style.fillOpacity] Opacity for each polygon.  The
-	 *   opacity can vary by vertex.  Opacity is on a [0-1] scale.
-	 * @param {boolean|Function} [style.stroke] True to stroke polygon.  Defaults
-	 *   to false.
-	 * @param {object|Function} [style.strokeColor] Color to stroke each polygon.
-	 *   The color can vary by vertex.  Colors can be css names or hex values, or
-	 *   an object with r, g, b on a [0-1] scale.
-	 * @param {number|Function} [style.strokeOpacity] Opacity for each polygon
-	 *   stroke.  The opacity can vary by vertex.  Opacity is on a [0-1] scale.
-	 * @param {number|Function} [style.strokeWidth] The weight of the polygon
-	 *   stroke in pixels.  The width can vary by vertex.
-	 * @param {boolean|Function} [style.uniformPolygon] Boolean indicating if each
-	 *   polygon has a uniform style (uniform fill color, fill opacity, stroke
-	 *   color, and stroke opacity).   Defaults to false.  Can vary by polygon.
-	 */
-
-	/**
-	 * Create a new instance of class polygonFeature.
-	 *
-	 * @class
-	 * @alias geo.polygonFeature
-	 * @extends geo.feature
-	 * @param {geo.polygonFeature.spec} arg
-	 * @returns {geo.polygonFeature}
-	 */
-	var polygonFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof polygonFeature)) {
-	    return new polygonFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  var util = __webpack_require__(83);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_lineFeature,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      s_data = this.data,
-	      s_draw = this.draw,
-	      s_modified = this.modified,
-	      s_style = this.style,
-	      m_coordinates = [];
-
-	  this.featureType = 'polygon';
-	  this._subfeatureStyles = {
-	    fillColor: true,
-	    fillOpacity: true,
-	    lineCap: true,
-	    lineJoin: true,
-	    strokeColor: true,
-	    strokeOffset: true,
-	    strokeOpacity: true,
-	    strokeWidth: true
-	  };
-
-	  /**
-	   * Get/set data.
-	   *
-	   * @param {object} [arg] if specified, use this for the data and return the
-	   *    feature.  If not specified, return the current data.
-	   * @returns {geo.polygonFeature|object}
-	   */
-	  this.data = function (arg) {
-	    var ret = s_data(arg);
-	    if (arg !== undefined) {
-	      getCoordinates();
-	      this._checkForStroke();
-	    }
-	    return ret;
-	  };
-
-	  /**
-	   * Get the internal coordinates whenever the data changes.  For now, we do
-	   * the computation in world coordinates, but we will need to work in GCS
-	   * for other projections.  Also compute the extents of the outside of each
-	   * polygon for faster checking if points are in the polygon.
-	   * @private
-	   */
-	  function getCoordinates() {
-	    var posFunc = m_this.style.get('position'),
-	        polyFunc = m_this.style.get('polygon');
-	    m_coordinates = m_this.data().map(function (d, i) {
-	      var poly = polyFunc(d);
-	      if (!poly) {
-	        return;
-	      }
-	      var outer, inner, range, coord, j, x, y;
-
-	      coord = poly.outer || (Array.isArray(poly) ? poly : []);
-	      outer = new Array(coord.length);
-	      for (j = 0; j < coord.length; j += 1) {
-	        outer[j] = posFunc.call(m_this, coord[j], j, d, i);
-	        x = outer[j].x || outer[j][0] || 0;
-	        y = outer[j].y || outer[j][1] || 0;
-	        if (!j) {
-	          range = {min: {x: x, y: y}, max: {x: x, y: y}};
-	        } else {
-	          if (x < range.min.x) { range.min.x = x; }
-	          if (y < range.min.y) { range.min.y = y; }
-	          if (x > range.max.x) { range.max.x = x; }
-	          if (y > range.max.y) { range.max.y = y; }
-	        }
-	      }
-	      inner = (poly.inner || []).map(function (hole) {
-	        coord = hole || [];
-	        var trans = new Array(coord.length);
-	        for (j = 0; j < coord.length; j += 1) {
-	          trans[j] = posFunc.call(m_this, coord[j], j, d, i);
-	        }
-	        return trans;
-	      });
-	      return {
-	        outer: outer,
-	        inner: inner,
-	        range: range
-	      };
-	    });
-	  }
-
-	  /**
-	   * Get the style for the stroke of the polygon.  Since polygons can have
-	   * holes, the number of stroke lines may not be the same as the number of
-	   * polygons.  If the style for a stroke is a function, this calls the
-	   * appropriate value for the polygon.  Any style set for a stroke line should
-	   * be wrapped in this function.
-	   *
-	   * @param {(object|function)?} styleValue The polygon's style value used for
-	   *    the stroke.  This should be m_this.style(<name of style>) and not
-	   *    m_this.style.get(<name of style>), as the result is more efficient if
-	   *    the style is not a function.
-	   * @returns {object|function} A style that can be used for the stroke.
-	   * @private
-	   */
-	  function linePolyStyle(styleValue) {
-	    if (util.isFunction(styleValue)) {
-	      return function (d) {
-	        return styleValue(d[0], d[1], d[2], d[3]);
-	      };
-	    } else {
-	      return styleValue;
-	    }
-	  }
-
-	  /**
-	   * Get/set polygon accessor.
-	   *
-	   * @param {object} [val] if specified, use this for the polygon accessor
-	   *    and return the feature.  If not specified, return the current polygon.
-	   * @returns {object|this} The current polygon or this feature.
-	   */
-	  this.polygon = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('polygon');
-	    } else {
-	      m_this.style('polygon', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	      getCoordinates();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set position accessor.
-	   *
-	   * @param {object} [val] if specified, use this for the position accessor
-	   *    and return the feature.  If not specified, return the current
-	   *    position.
-	   * @returns {object|this} The current position or this feature.
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else {
-	      m_this.style('position', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	      getCoordinates();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Point search method for selection api.  Returns markers containing the
-	   * given point.
-	   *
-	   * @argument {object} coordinate
-	   * @returns {object}
-	   */
-	  this.pointSearch = function (coordinate) {
-	    var found = [], indices = [], data = m_this.data();
-	    m_coordinates.forEach(function (coord, i) {
-	      var inside = util.pointInPolygon(
-	        coordinate,
-	        coord.outer,
-	        coord.inner,
-	        coord.range
-	      );
-	      if (inside) {
-	        indices.push(i);
-	        found.push(data[i]);
-	      }
-	    });
-	    return {
-	      index: indices,
-	      found: found
-	    };
-	  };
-
-	  /**
-	   * Get/Set style used by the feature.  This calls the super function, then
-	   * checks if strokes are required.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the current style
-	   *    object.  If a string and `arg2` is undefined, return the style
-	   *    associated with the specified key.  If a string and `arg2` is defined,
-	   *    set the named style to the specified value.  Otherwise, extend the
-	   *    current style with the values in the specified object.
-	   * @param {*} [arg2] If `arg1` is a string, the new value for that style.
-	   * @returns {object|this} Either the entire style object, the value of a
-	   *    specific style, or the current class instance.
-	   */
-	  this.style = function (arg1, arg2) {
-	    var result = s_style.apply(this, arguments);
-	    if (arg1 !== undefined && (typeof arg1 !== 'string' || arg2 !== undefined)) {
-	      this._checkForStroke();
-	    }
-	    return result;
-	  };
-
-	  this.style.get = s_style.get;
-
-	  /**
-	   * Get an outer or inner loop of a polygon and return the necessary data to
-	   * use it for a closed polyline.
-	   *
-	   * @param {object} item: the polygon.
-	   * @param {number} itemIndex: the index of the polygon
-	   * @param {Array} loop: the inner or outer loop.
-	   * @returns {Array} the loop with the data necessary to send to the position
-	   *    function for each vertex.
-	   */
-	  this._getLoopData = function (item, itemIndex, loop) {
-	    var line = [], i;
-
-	    for (i = 0; i < loop.length; i += 1) {
-	      line.push([loop[i], i, item, itemIndex]);
-	    }
-	    return line;
-	  };
-
-	  /**
-	   * Check if we need to add a line feature to the layer, and update it as
-	   * necessary.
-	   */
-	  this._checkForStroke = function () {
-	    if (s_style('stroke') === false) {
-	      if (m_lineFeature && m_this.layer()) {
-	        m_this.layer().deleteFeature(m_lineFeature);
-	        m_lineFeature = null;
-	        m_this.dependentFeatures([]);
-	      }
-	      return;
-	    }
-	    if (!m_this.layer()) {
-	      return;
-	    }
-	    if (!m_lineFeature) {
-	      m_lineFeature = m_this.layer().createFeature('line', {
-	        selectionAPI: false,
-	        gcs: m_this.gcs(),
-	        visible: m_this.visible(undefined, true)
-	      });
-	      m_this.dependentFeatures([m_lineFeature]);
-	    }
-	    var polyStyle = m_this.style();
-	    m_lineFeature.style({
-	      antialiasing: linePolyStyle(polyStyle.antialiasing),
-	      closed: true,
-	      lineCap: linePolyStyle(polyStyle.lineCap),
-	      lineJoin: linePolyStyle(polyStyle.lineJoin),
-	      miterLimit: linePolyStyle(polyStyle.miterLimit),
-	      strokeWidth: linePolyStyle(polyStyle.strokeWidth),
-	      strokeStyle: linePolyStyle(polyStyle.strokeStyle),
-	      strokeColor: linePolyStyle(polyStyle.strokeColor),
-	      strokeOffset: linePolyStyle(polyStyle.strokeOffset),
-	      strokeOpacity: function (d) {
-	        return m_this.style.get('stroke')(d[2], d[3]) ? m_this.style.get('strokeOpacity')(d[0], d[1], d[2], d[3]) : 0;
-	      }
-	    });
-	    var data = this.data(),
-	        posFunc = this.style.get('position'),
-	        polyFunc = this.style.get('polygon');
-	    if (data !== m_lineFeature._lastData || posFunc !== m_lineFeature._posFunc) {
-	      var lineData = [], i, polygon, loop;
-
-	      for (i = 0; i < data.length; i += 1) {
-	        polygon = polyFunc(data[i], i);
-	        if (!polygon) {
-	          continue;
-	        }
-	        loop = polygon.outer || (Array.isArray(polygon) ? polygon : []);
-	        lineData.push(m_this._getLoopData(data[i], i, loop));
-	        if (polygon.inner) {
-	          polygon.inner.forEach(function (loop) {
-	            lineData.push(m_this._getLoopData(data[i], i, loop));
-	          });
-	        }
-	      }
-	      m_lineFeature.position(function (d, i, item, itemIndex) {
-	        return posFunc(d[0], d[1], d[2], d[3]);
-	      });
-	      m_lineFeature.data(lineData);
-	      m_lineFeature._lastData = data;
-	      m_lineFeature._lastPosFunc = posFunc;
-	    }
-	  };
-
-	  /**
-	   * Redraw the object.
-	   *
-	   * @returns {object} The results of the superclass draw function.
-	   */
-	  this.draw = function () {
-	    var result = s_draw();
-	    if (m_lineFeature) {
-	      m_lineFeature.draw();
-	    }
-	    return result;
-	  };
-
-	  /**
-	   * When the feature is marked as modified, mark our sub-feature as
-	   * modified, too.
-	   *
-	   * @returns {object} The results of the superclass modified function.
-	   */
-	  this.modified = function () {
-	    var result = s_modified();
-	    if (m_lineFeature) {
-	      m_lineFeature.modified();
-	    }
-	    return result;
-	  };
-
-	  /**
-	   * Destroy.
-	   */
-	  this._exit = function () {
-	    if (m_lineFeature && m_this.layer()) {
-	      m_this.layer().deleteFeature(m_lineFeature);
-	      m_lineFeature = null;
-	      m_this.dependentFeatures([]);
-	    }
-	    s_exit();
-	  };
-
-	  /**
-	   * Initialize.
-	   *
-	   * @param {geo.polygonFeature.spec} arg An object with options for the
-	   *    feature.
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    var style = $.extend(
-	      {},
-	      {
-	        // default style
-	        fill: true,
-	        fillColor: {r: 0.0, g: 0.5, b: 0.5},
-	        fillOpacity: 1.0,
-	        stroke: false,
-	        strokeWidth: 1.0,
-	        strokeStyle: 'solid',
-	        strokeColor: {r: 0.0, g: 1.0, b: 1.0},
-	        strokeOpacity: 1.0,
-	        polygon: function (d) { return d; },
-	        position: function (d) { return d; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.polygon !== undefined) {
-	      style.polygon = arg.polygon;
-	    }
-	    if (arg.position !== undefined) {
-	      style.position = arg.position;
-	    }
-	    m_this.style(style);
-
-	    this._checkForStroke();
-	  };
-
-	  /* Don't call _init here -- let subclasses call it */
-	  return this;
-	};
-
-	/**
-	 * Create a polygonFeature from an object.
-	 *
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.polygonFeature.spec} spec The object specification
-	 * @returns {geo.polygonFeature|null}
-	 */
-	polygonFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'polygon';
-	  return feature.create(layer, spec);
-	};
-
-	polygonFeature.capabilities = {
-	  /* core feature name -- support in any manner */
-	  feature: 'polygon'
-	};
-
-	inherit(polygonFeature, feature);
-	module.exports = polygonFeature;
-
-
-/***/ }),
-/* 218 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Object specification for a text feature.
-	 *
-	 * @typedef {geo.feature.spec} geo.textFeature.spec
-	 * @property {geo.geoPosition[]|function} [position] The position of each data
-	 *      element.  Defaults to the `x`, `y`, and `z` properties of the data
-	 *      element.
-	 * @property {string[]|function} [text] The text of each data element.
-	 *      Defaults to the `text` property of the data element.
-	 * @property {object} [style] The style to apply to each data element.
-	 * @property {boolean|function} [style.visible=true] If falsy, don't show this
-	 *      data element.
-	 * @property {string|function} [style.font] A css font specification.  This
-	 *      is of the form `[style] [variant] [weight] [stretch] size[/line-height]
-	 *      family`.  Individual font styles override this value if a style is
-	 *      specified in each.  See the individual font styles for details.
-	 * @property {string|function} [style.fontStyle='normal'] The font style.  One
-	 *      of `normal`, `italic`, or `oblique`.
-	 * @property {string|function} [style.fontVariant='normal'] The font variant.
-	 *      This can have values such as `small-caps` or `slashed-zero`.
-	 * @property {string|function} [style.fontWeight='normal'] The font weight.
-	 *      This may be a numeric value where 400 is normal and 700 is bold, or a
-	 *      string such as `bold` or `lighter`.
-	 * @property {string|function} [style.fontStretch='normal'] The font stretch,
-	 *      such as `condensed`.
-	 * @property {string|function} [style.fontSize='medium'] The font size.
-	 * @property {string|function} [style.lineHeight='normal'] The font line
-	 *      height.
-	 * @property {string|function} [style.fontFamily] The font family.
-	 * @property {string|function} [style.textAlign='center'] The horizontal text
-	 *      alignment.  One of `start`, `end`, `left`, `right`, or `center`.
-	 * @property {string|function} [style.textBaseline='middle'] The vertical text
-	 *      alignment.  One of `top`, `hanging`, `middle`, `alphabetic`,
-	 *      `ideographic`, or `bottom`.
-	 * @property {geo.geoColor|function} [style.color='black'] Text color.  May
-	 *      include opacity.
-	 * @property {number|function} [style.textOpacity=1] The opacity of the text.
-	 *      If the color includes opacity, this is combined with that value.
-	 * @property {number|function} [style.rotation=0] Text rotation in radians.
-	 * @property {boolean|function} [style.rotateWithMap=false] If truthy, rotate
-	 *      the text when the map rotates.  Otherwise, the text is always in the
-	 *      same orientation.
-	 * @property {number|function} [style.scale=4] The zoom basis value used when
-	 *      `scaleWithMap` is truthy.
-	 * @property {boolean|function} [style.scaleWithMap=false] If truthy, use the
-	 *      `scale` style as the basis of the map zoom value for the font size.
-	 *      The size is scaled from this point.
-	 * @property {geo.screenPosition|function} [style.offset] Offset from the
-	 *      default position for the text.  This is applied before rotation.
-	 * @property {geo.geoColor|function} [style.shadowColor='black'] Text shadow
-	 *      color.  May include opacity.
-	 * @property {geo.screenPosition|function} [style.shadowOffset] Offset for a
-	 *      text shadow.  This is applied before rotation.
-	 * @property {number|null|function} [style.shadowBlur] If not null, add a text
-	 *      shadow with this much blur.
-	 * @property {boolean|function} [style.shadowRotate=false] If truthy, rotate
-	 *      the shadow offset based on the text rotation (the `shadowOffset` is
-	 *      the offset if the text has a 0 rotation).
-	 * @property {geo.geoColor|function} [style.textStrokeColor='transparent'] Text
-	 *      stroke color.  May include opacity.
-	 * @property {geo.geoColor|function} [style.textStrokeWidth=0] Text stroke
-	 *      width in pixels.
-	 */
-
-	/**
-	 * Create a new instance of class textFeature.
-	 *
-	 * @class
-	 * @alias geo.textFeature
-	 * @extends geo.feature
-	 *
-	 * @param {geo.textFeature.spec} [arg] Options for the feature.
-	 * @returns {geo.textFeature} The created feature.
-	 */
-	var textFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof textFeature)) {
-	    return new textFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init;
-
-	  this.featureType = 'text';
-
-	  /**
-	   * Get/Set position.
-	   *
-	   * @param {array|function} [val] If `undefined`, return the current position
-	   *    setting.  Otherwise, modify the current position setting.
-	   * @returns {array|function|this} The current position or this feature.
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else if (val !== m_this.style('position')) {
-	      m_this.style('position', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set text.
-	   *
-	   * @param {array|function} [val] If `undefined`, return the current text
-	   *    setting.  Otherwise, modify the current text setting.
-	   * @returns {array|function|this} The current text or this feature.
-	   */
-	  this.text = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('text');
-	    } else if (val !== m_this.style('text')) {
-	      m_this.style('text', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize.
-	   *
-	   * @param {geo.textFeature.spec} [arg] The feature specification.
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    var style = $.extend(
-	      {},
-	      {
-	        font: 'bold 16px sans-serif',
-	        textAlign: 'center',
-	        textBaseline: 'middle',
-	        color: { r: 0, g: 0, b: 0 },
-	        rotation: 0,  /* in radians */
-	        rotateWithMap: false,
-	        textScaled: false,
-	        position: function (d) { return d; },
-	        text: function (d) { return d.text; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.position !== undefined) {
-	      style.position = arg.position;
-	    }
-	    if (arg.text !== undefined) {
-	      style.text = arg.text;
-	    }
-
-	    m_this.style(style);
-	    if (style.position) {
-	      m_this.position(style.position);
-	    }
-	    if (style.text) {
-	      m_this.text(style.text);
-	    }
-	    m_this.dataTime().modified();
-	  };
-
-	  this._init(arg);
-	  return m_this;
-	};
-
-	textFeature.usedStyles = [
-	  'visible', 'font', 'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch',
-	  'fontSize', 'lineHeight', 'fontFamily', 'textAlign', 'textBaseline', 'color',
-	  'textOpacity', 'rotation', 'rotateWithMap', 'textScaled', 'offset',
-	  'shadowColor', 'shadowOffset', 'shadowBlur', 'shadowRotate',
-	  'textStrokeColor', 'textStrokeWidth'
-	];
-
-	/**
-	 * Create a textFeature from an object.
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.textFeature.spec} spec The object specification
-	 * @returns {geo.textFeature|null}
-	 */
-	textFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'text';
-	  return feature.create(layer, spec);
-	};
-
-	textFeature.capabilities = {
-	  /* core feature name -- support in any manner */
-	  feature: 'text'
-	};
-
-	inherit(textFeature, feature);
-	module.exports = textFeature;
-
-
-/***/ }),
-/* 219 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var featureLayer = __webpack_require__(220);
-	var geo_annotation = __webpack_require__(7);
-	var geo_event = __webpack_require__(9);
-	var registry = __webpack_require__(201);
-	var transform = __webpack_require__(11);
-	var $ = __webpack_require__(1);
-	var Mousetrap = __webpack_require__(221);
-	var textFeature = __webpack_require__(218);
-
-	/**
-	 * @typedef {object} geo.annotationLayer.labelRecord
-	 * @property {string} text The text of the label
-	 * @property {geo.geoPosition} position The position of the label in map gcs
-	 *      coordinates.
-	 * @property {object} [style] A `geo.textFeature` style object.
-	 */
-
-	/**
-	 * Layer to handle direct interactions with different features.  Annotations
-	 * (features) can be created by calling mode(<name of feature>) or cancelled
-	 * with mode(null).
-	 *
-	 * @class
-	 * @alias geo.annotationLayer
-	 * @extends geo.featureLayer
-	 * @param {object} [args] Layer options.
-	 * @param {number} [args.dblClickTime=300] The delay in milliseconds that is
-	 *    treated as a double-click when working with annotations.
-	 * @param {number} [args.adjacentPointProximity=5] The minimum distance in
-	 *    display coordinates (pixels) between two adjacent points when creating a
-	 *    polygon or line.  A value of 0 requires an exact match.
-	 * @param {number} [args.continousPointProximity=5] The minimum distance in
-	 *    display coordinates (pixels) between two adjacent points when dragging
-	 *    to create an annotation.  `false` disables continuous drawing mode.
-	 * @param {number} [args.finalPointProximity=10] The maximum distance in
-	 *    display coordinates (pixels) between the starting point and the mouse
-	 *    coordinates to signal closing a polygon.  A value of 0 requires an exact
-	 *    match.  A negative value disables closing a polygon by clicking on the
-	 *    start point.
-	 * @param {boolean} [args.showLabels=true] Truthy to show feature labels that
-	 *    are allowed by the associated feature to be shown.
-	 * @param {object} [args.defaultLabelStyle] Default styles for labels.
-	 * @returns {geo.annotationLayer}
-	 */
-	var annotationLayer = function (args) {
-	  'use strict';
-	  if (!(this instanceof annotationLayer)) {
-	    return new annotationLayer(args);
-	  }
-	  featureLayer.call(this, args);
-
-	  var mapInteractor = __webpack_require__(222);
-	  var timestamp = __webpack_require__(209);
-	  var util = __webpack_require__(83);
-
-	  var m_this = this,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      s_draw = this.draw,
-	      s_update = this._update,
-	      m_buildTime = timestamp(),
-	      m_options,
-	      m_mode = null,
-	      m_annotations = [],
-	      m_features = [],
-	      m_labelFeature,
-	      m_labelLayer;
-
-	  var geojsonStyleProperties = {
-	    'closed': {dataType: 'boolean', keys: ['closed', 'close']},
-	    'fill': {dataType: 'boolean', keys: ['fill']},
-	    'fillColor': {dataType: 'color', keys: ['fillColor', 'fill-color', 'marker-color', 'fill']},
-	    'fillOpacity': {dataType: 'opacity', keys: ['fillOpacity', 'fill-opacity']},
-	    'lineCap': {dataType: 'text', keys: ['lineCap', 'line-cap']},
-	    'lineJoin': {dataType: 'text', keys: ['lineJoin', 'line-join']},
-	    'radius': {dataType: 'positive', keys: ['radius']},
-	    'scaled': {dataType: 'booleanOrNumber', keys: ['scaled']},
-	    'stroke': {dataType: 'boolean', keys: ['stroke']},
-	    'strokeColor': {dataType: 'color', keys: ['strokeColor', 'stroke-color', 'stroke']},
-	    'strokeOffset': {dataType: 'number', keys: ['strokeOffset', 'stroke-offset']},
-	    'strokeOpacity': {dataType: 'opacity', keys: ['strokeOpacity', 'stroke-opacity']},
-	    'strokeWidth': {dataType: 'positive', keys: ['strokeWidth', 'stroke-width']}
-	  };
-	  textFeature.usedStyles.forEach(function (key) {
-	    geojsonStyleProperties[key] = {
-	      option: 'labelStyle',
-	      dataType: ['visible', 'rotateWithMap', 'scaleWithMap'].indexOf(key) >= 0 ? 'boolean' : (
-	        ['scale'].indexOf(key) >= 0 ? 'booleanOrNumber' : (
-	        ['rotation'].indexOf(key) >= 0 ? 'angle' : (
-	        ['offset', 'shadowOffset'].indexOf(key) >= 0 ? 'coordinate2' : (
-	        ['shadowBlur, strokeWidth'].indexOf(key) >= 0 ? 'numberOrBlank' :
-	        'text')))),
-	      keys: [
-	        key,
-	        'label' + key.charAt(0).toUpperCase() + key.slice(1),
-	        key.replace(/([A-Z])/g, '-$1').toLowerCase(),
-	        'label-' + key.replace(/([A-Z])/g, '-$1').toLowerCase()]
-	    };
-	  });
-
-	  m_options = $.extend(true, {}, {
-	    dblClickTime: 300,
-	    adjacentPointProximity: 5,  // in pixels, 0 is exact
-	    // in pixels; set to continuousPointProximity to false to disable
-	    // continuous drawing modes.
-	    continuousPointProximity: 5,
-	    finalPointProximity: 10,  // in pixels, 0 is exact
-	    showLabels: true
-	  }, args);
-
-	  /**
-	   * Process an action event.  If we are in rectangle-creation mode, this
-	   * creates a rectangle.
-	   *
-	   * @param {geo.event} evt The selection event.
-	   */
-	  this._processAction = function (evt) {
-	    var update;
-	    if (evt.state && evt.state.actionRecord &&
-	        evt.state.actionRecord.owner === geo_annotation.actionOwner &&
-	        this.currentAnnotation) {
-	      update = this.currentAnnotation.processAction(evt);
-	    }
-	    this._updateFromEvent(update);
-	  };
-
-	  /**
-	   * Handle updating the current annotation based on an update state.
-	   *
-	   * @param {string|undefined} update Truthy to update.  `'done'` if the
-	   *    annotation was completed and the mode should return to `null`.
-	   *    `'remove'` to remove the current annotation and set the mode to `null`.
-	   *    Falsy to do nothing.
-	   */
-	  this._updateFromEvent = function (update) {
-	    switch (update) {
-	      case 'remove':
-	        m_this.removeAnnotation(m_this.currentAnnotation, false);
-	        m_this.mode(null);
-	        break;
-	      case 'done':
-	        m_this.mode(null);
-	        break;
-	    }
-	    if (update) {
-	      m_this.modified();
-	      m_this.draw();
-	    }
-	  };
-
-	  /**
-	   * Handle mouse movement.  If there is a current annotation, the movement
-	   * event is sent to it.
-	   *
-	   * @param {geo.event} evt The mouse move event.
-	   */
-	  this._handleMouseMove = function (evt) {
-	    if (this.mode() && this.currentAnnotation) {
-	      var update = this.currentAnnotation.mouseMove(evt);
-	      if (update) {
-	        m_this.modified();
-	        m_this.draw();
-	      }
-	    }
-	  };
-
-	  /**
-	   * Handle mouse clicks.  If there is a current annotation, the click event is
-	   * sent to it.
-	   *
-	   * @param {geo.event} evt The mouse click event.
-	   */
-	  this._handleMouseClick = function (evt) {
-	    if (this.mode() && this.currentAnnotation) {
-	      var update = this.currentAnnotation.mouseClick(evt);
-	      this._updateFromEvent(update);
-	    }
-	  };
-
-	  /**
-	   * Set or get options.
-	   *
-	   * @param {string|object} [arg1] If `undefined`, return the options object.
-	   *    If a string, either set or return the option of that name.  If an
-	   *    object, update the options with the object's values.
-	   * @param {object} [arg2] If `arg1` is a string and this is defined, set
-	   *    the option to this value.
-	   * @returns {object|this} If options are set, return the annotation,
-	   *    otherwise return the requested option or the set of options.
-	   */
-	  this.options = function (arg1, arg2) {
-	    if (arg1 === undefined) {
-	      return m_options;
-	    }
-	    if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_options[arg1];
-	    }
-	    if (arg2 === undefined) {
-	      m_options = $.extend(true, m_options, arg1);
-	    } else {
-	      m_options[arg1] = arg2;
-	    }
-	    this.modified();
-	    return this;
-	  };
-
-	  /**
-	   * Calculate the display distance for two coordinate in the current map.
-	   *
-	   * @param {geo.geoPosition|geo.screenPosition} coord1 The first coordinates.
-	   * @param {string|geo.transform|null} gcs1 `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, `'display`' if the coordinates are
-	   *    already in display coordinates, or any other transform.
-	   * @param {geo.geoPosition|geo.screenPosition} coord2 the second coordinates.
-	   * @param {string|geo.transform|null} [gcs2] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, `'display`' if the coordinates are
-	   *    already in display coordinates, or any other transform.
-	   * @returns {number} the Euclidian distance between the two coordinates.
-	   */
-	  this.displayDistance = function (coord1, gcs1, coord2, gcs2) {
-	    var map = this.map();
-	    if (gcs1 !== 'display') {
-	      gcs1 = (gcs1 === null ? map.gcs() : (
-	              gcs1 === undefined ? map.ingcs() : gcs1));
-	      coord1 = map.gcsToDisplay(coord1, gcs1);
-	    }
-	    if (gcs2 !== 'display') {
-	      gcs2 = (gcs2 === null ? map.gcs() : (
-	              gcs2 === undefined ? map.ingcs() : gcs2));
-	      coord2 = map.gcsToDisplay(coord2, gcs2);
-	    }
-	    var dist = Math.sqrt(Math.pow(coord1.x - coord2.x, 2) +
-	                         Math.pow(coord1.y - coord2.y, 2));
-	    return dist;
-	  };
-
-	  /**
-	   * Add an annotation to the layer.  The annotation could be in any state.
-	   *
-	   * @param {geo.annotation} annotation Te annotation to add.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {this} The current layer.
-	   */
-	  this.addAnnotation = function (annotation, gcs) {
-	    var pos = $.inArray(annotation, m_annotations);
-	    if (pos < 0) {
-	      m_this.geoTrigger(geo_event.annotation.add_before, {
-	        annotation: annotation
-	      });
-	      m_annotations.push(annotation);
-	      annotation.layer(this);
-	      var map = this.map();
-	      gcs = (gcs === null ? map.gcs() : (
-	             gcs === undefined ? map.ingcs() : gcs));
-	      if (gcs !== map.gcs()) {
-	        annotation._coordinates(transform.transformCoordinates(
-	            gcs, map.gcs(), annotation._coordinates()));
-	      }
-	      this.modified();
-	      this.draw();
-	      m_this.geoTrigger(geo_event.annotation.add, {
-	        annotation: annotation
-	      });
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Remove an annotation from the layer.
-	   *
-	   * @param {geo.annoation} annotation The annotation to remove.
-	   * @param {boolean} update If `false`, don't update the layer after removing
-	   *    the annotation.
-	   * @returns {boolean} `true` if an annotation was removed.
-	   */
-	  this.removeAnnotation = function (annotation, update) {
-	    var pos = $.inArray(annotation, m_annotations);
-	    if (pos >= 0) {
-	      if (annotation === this.currentAnnotation) {
-	        this.currentAnnotation = null;
-	      }
-	      annotation._exit();
-	      m_annotations.splice(pos, 1);
-	      if (update !== false) {
-	        this.modified();
-	        this.draw();
-	      }
-	      m_this.geoTrigger(geo_event.annotation.remove, {
-	        annotation: annotation
-	      });
-	    }
-	    return pos >= 0;
-	  };
-
-	  /**
-	   * Remove all annotations from the layer.
-	   *
-	   * @param {boolean} [skipCreating] If truthy, don't remove annotations that
-	   *    are in the create state.
-	   * @param {boolean} [update] If `false`, don't update the layer after
-	   *    removing the annotation.
-	   * @returns {number} The number of annotations that were removed.
-	   */
-	  this.removeAllAnnotations = function (skipCreating, update) {
-	    var removed = 0, annotation, pos = 0;
-	    while (pos < m_annotations.length) {
-	      annotation = m_annotations[pos];
-	      if (skipCreating && annotation.state() === geo_annotation.state.create) {
-	        pos += 1;
-	        continue;
-	      }
-	      this.removeAnnotation(annotation, false);
-	      removed += 1;
-	    }
-	    if (removed && update !== false) {
-	      this.modified();
-	      this.draw();
-	    }
-	    return removed;
-	  };
-
-	  /**
-	   * Get the list of annotations on the layer.
-	   *
-	   * @returns {geo.annoation[]} An array of annotations.
-	   */
-	  this.annotations = function () {
-	    return m_annotations.slice();
-	  };
-
-	  /**
-	   * Get an annotation by its id.
-	   *
-	   * @param {number} id The annotation ID.
-	   * @returns {geo.annotation} The selected annotation or `undefined` if none
-	   *    matches the id.
-	   */
-	  this.annotationById = function (id) {
-	    if (id !== undefined && id !== null) {
-	      id = +id;  /* Cast to int */
-	    }
-	    var annotations = m_annotations.filter(function (annotation) {
-	      return annotation.id() === id;
-	    });
-	    if (annotations.length) {
-	      return annotations[0];
-	    }
-	  };
-
-	  /**
-	   * Get or set the current mode.  The mode is either `null` for nothing being
-	   * created, or the name of the type of annotation that is being created.
-	   *
-	   * @param {string|null} [arg] The new mode or `undefined` to get the current
-	   *    mode.
-	   * @returns {string|null|this} The current mode or the layer.
-	   */
-	  this.mode = function (arg) {
-	    if (arg === undefined) {
-	      return m_mode;
-	    }
-	    if (arg !== m_mode) {
-	      var createAnnotation, actions,
-	          mapNode = m_this.map().node(), oldMode = m_mode;
-	      m_mode = arg;
-	      mapNode.toggleClass('annotation-input', !!m_mode);
-	      if (m_mode) {
-	        Mousetrap(mapNode[0]).bind('esc', function () { m_this.mode(null); });
-	      } else {
-	        Mousetrap(mapNode[0]).unbind('esc');
-	      }
-	      if (this.currentAnnotation) {
-	        switch (this.currentAnnotation.state()) {
-	          case geo_annotation.state.create:
-	            this.removeAnnotation(this.currentAnnotation);
-	            break;
-	        }
-	        this.currentAnnotation = null;
-	      }
-	      switch (m_mode) {
-	        case 'line':
-	          createAnnotation = geo_annotation.lineAnnotation;
-	          break;
-	        case 'point':
-	          createAnnotation = geo_annotation.pointAnnotation;
-	          break;
-	        case 'polygon':
-	          createAnnotation = geo_annotation.polygonAnnotation;
-	          break;
-	        case 'rectangle':
-	          createAnnotation = geo_annotation.rectangleAnnotation;
-	          break;
-	      }
-	      m_this.map().interactor().removeAction(
-	        undefined, undefined, geo_annotation.actionOwner);
-	      if (createAnnotation) {
-	        this.currentAnnotation = createAnnotation({
-	          state: geo_annotation.state.create,
-	          layer: this
-	        });
-	        this.addAnnotation(m_this.currentAnnotation, null);
-	        actions = this.currentAnnotation.actions(geo_annotation.state.create);
-	        $.each(actions, function (idx, action) {
-	          m_this.map().interactor().addAction(action);
-	        });
-	      }
-	      m_this.geoTrigger(geo_event.annotation.mode, {
-	        mode: m_mode, oldMode: oldMode});
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Return the current set of annotations as a geojson object.  Alternately,
-	   * add a set of annotations from a geojson object.
-	   *
-	   * @param {string|objectFile} [geojson] If present, add annotations based on
-	   *    the given geojson object.  If `undefined`, return the current
-	   *    annotations as geojson.  This may be a JSON string, a javascript
-	   *    object, or a File object.
-	   * @param {boolean} [clear] If `true`, when adding annotations, first remove
-	   *    all existing objects.  If `'update'`, update existing annotations and
-	   *    remove annotations that no longer exit,  If falsy, update existing
-	   *    annotations and leave unchanged annotations.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @param {boolean} [includeCrs] If truthy, include the coordinate system in
-	   *    the output.
-	   * @returns {object|number|undefined} If `geojson` was undefined, the current
-	   *    annotations as a javascript object that can be converted to geojson
-	   *    using JSON.stringify.  If `geojson` is specified, either the number of
-	   *    annotations now present upon success, or `undefined` if the value in
-	   *    `geojson` was not able to be parsed.
-	   */
-	  this.geojson = function (geojson, clear, gcs, includeCrs) {
-	    if (geojson !== undefined) {
-	      var reader = registry.createFileReader('jsonReader', {layer: this});
-	      if (!reader.canRead(geojson)) {
-	        return;
-	      }
-	      if (clear === true) {
-	        this.removeAllAnnotations(true, false);
-	      }
-	      if (clear === 'update') {
-	        $.each(this.annotations(), function (idx, annotation) {
-	          annotation.options('updated', false);
-	        });
-	      }
-	      reader.read(geojson, function (features) {
-	        $.each(features.slice(), function (feature_idx, feature) {
-	          m_this._geojsonFeatureToAnnotation(feature, gcs);
-	          m_this.deleteFeature(feature);
-	        });
-	      });
-	      if (clear === 'update') {
-	        $.each(this.annotations(), function (idx, annotation) {
-	          if (annotation.options('updated') === false &&
-	              annotation.state() === geo_annotation.state.done) {
-	            m_this.removeAnnotation(annotation, false);
-	          }
-	        });
-	      }
-	      this.modified();
-	      this.draw();
-	      return m_annotations.length;
-	    }
-	    geojson = null;
-	    var features = [];
-	    $.each(m_annotations, function (annotation_idx, annotation) {
-	      var obj = annotation.geojson(gcs, includeCrs);
-	      if (obj) {
-	        features.push(obj);
-	      }
-	    });
-	    if (features.length) {
-	      geojson = {
-	        type: 'FeatureCollection',
-	        features: features
-	      };
-	    }
-	    return geojson;
-	  };
-
-	  /**
-	   * Convert a feature as parsed by the geojson reader into one or more
-	   * annotations.
-	   *
-	   * @param {geo.feature} feature The feature to convert.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   */
-	  this._geojsonFeatureToAnnotation = function (feature, gcs) {
-	    var dataList = feature.data(),
-	        annotationList = registry.listAnnotations();
-	    $.each(dataList, function (data_idx, data) {
-	      var type = (data.properties || {}).annotationType || feature.featureType,
-	          options = $.extend({}, data.properties || {}),
-	          position, datagcs, i, existing;
-	      if ($.inArray(type, annotationList) < 0) {
-	        return;
-	      }
-	      options.style = options.style || {};
-	      options.labelStyle = options.labelStyle || {};
-	      delete options.annotationType;
-	      // the geoJSON reader can only emit line, polygon, and point
-	      switch (feature.featureType) {
-	        case 'line':
-	          position = feature.line()(data, data_idx);
-	          if (!position || position.length < 2) {
-	            return;
-	          }
-	          break;
-	        case 'polygon':
-	          position = feature.polygon()(data, data_idx);
-	          if (!position || !position.outer || position.outer.length < 3) {
-	            return;
-	          }
-	          position = position.outer;
-	          if (position[position.length - 1][0] === position[0][0] &&
-	              position[position.length - 1][1] === position[0][1]) {
-	            position.splice(position.length - 1, 1);
-	            if (position.length < 3) {
-	              return;
-	            }
-	          }
-	          break;
-	        case 'point':
-	          position = [feature.position()(data, data_idx)];
-	          break;
-	      }
-	      for (i = 0; i < position.length; i += 1) {
-	        position[i] = util.normalizeCoordinates(position[i]);
-	      }
-	      datagcs = ((data.crs && data.crs.type === 'name' && data.crs.properties &&
-	                  data.crs.properties.type === 'proj4' &&
-	                  data.crs.properties.name) ? data.crs.properties.name : gcs);
-	      if (datagcs !== m_this.map().gcs()) {
-	        position = transform.transformCoordinates(datagcs, m_this.map().gcs(), position);
-	      }
-	      options.coordinates = position;
-	      /* For each style listed in the geojsonStyleProperties object, check if
-	       * is given under any of the variety of keys as a valid instance of the
-	       * required data type.  If not, use the property from the feature. */
-	      $.each(geojsonStyleProperties, function (key, prop) {
-	        var value;
-	        $.each(prop.keys, function (idx, altkey) {
-	          if (value === undefined) {
-	            value = m_this.validateAttribute(options[altkey], prop.dataType);
-	          }
-	        });
-	        if (value === undefined) {
-	          value = m_this.validateAttribute(
-	            feature.style.get(key)(data, data_idx), prop.dataType);
-	        }
-	        if (value !== undefined) {
-	          options[prop.option || 'style'][key] = value;
-	        }
-	      });
-	      /* Delete property keys we have used */
-	      $.each(geojsonStyleProperties, function (key, prop) {
-	        $.each(prop.keys, function (idx, altkey) {
-	          delete options[altkey];
-	        });
-	      });
-	      if (options.annotationId !== undefined) {
-	        existing = m_this.annotationById(options.annotationId);
-	        delete options.annotationId;
-	      }
-	      if (existing && existing.type() === type && existing.state() === geo_annotation.state.done && existing.options('updated') === false) {
-	        /* We could change the state of the existing annotation if it differs
-	         * from done. */
-	        delete options.state;
-	        delete options.layer;
-	        options.updated = true;
-	        existing.options(options);
-	        m_this.geoTrigger(geo_event.annotation.update, {
-	          annotation: existing
-	        });
-	      } else {
-	        options.state = geo_annotation.state.done;
-	        options.layer = m_this;
-	        options.updated = 'new';
-	        m_this.addAnnotation(registry.createAnnotation(type, options), null);
-	      }
-	    });
-	  };
-
-	  /**
-	   * Validate a value for an attribute based on a specified data type.  This
-	   * returns a sanitized value or `undefined` if the value was invalid.  Data
-	   * types include:
-	   * - `color`: a css string, `#rrggbb` hex string, `#rgb` hex string, number,
-	   *   or object with r, g, b properties in the range of [0-1].
-	   * - `opacity`: a floating point number in the range [0, 1].
-	   * - `positive`: a floating point number greater than zero.
-	   * - `boolean`: a string whose lowercase value is `'false'`, `'off'`, or
-	   *   `'no'`, and falsy values are false, all else is true.  `null` and
-	   *   `undefined` are still considered invalid values.
-	   * - `booleanOrNumber`: a string whose lowercase value is `'false'`, `'off'`,
-	   *   `'no'`, `'true'`, `'on'`, or `'yes'`, falsy values that aren't 0, and
-	   *   `true` are handled as booleans.  Otherwise, a floating point number that
-	   *   isn't NaN or an infinity.
-	   * - `coordinate2`: either an object with x and y properties that are
-	   *   numbers, or a string of the form <x>[,]<y> with optional whitespace, or
-	   *   a JSON encoded object with x and y values, or a JSON encoded list of at
-	   *   leasst two numbers.
-	   * - `number`: a floating point number that isn't NaN or an infinity.
-	   * - `angle`: a number that represents radians.  If followed by one of `deg`,
-	   *   `grad`, or `turn`, it is converted to radians.  An empty string is also
-	   *   allowed.
-	   * - `text`: any text string.
-	   * @param {number|string|object|boolean} value The value to validate.
-	   * @param {string} dataType The data type for validation.
-	   * @returns {number|string|object|boolean|undefined} The sanitized value or
-	   *    `undefined`.
-	   */
-	  this.validateAttribute = function (value, dataType) {
-	    var parts;
-
-	    if (value === undefined || value === null) {
-	      return;
-	    }
-	    switch (dataType) {
-	      case 'angle':
-	        if (value === '') {
-	          break;
-	        }
-	        parts = /^\s*([-.0-9eE]+)\s*(deg|rad|grad|turn)?\s*$/.exec(('' + value).toLowerCase());
-	        if (!parts || !isFinite(parts[1])) {
-	          return;
-	        }
-	        var factor = (parts[2] === 'grad' ? Math.PI / 200 :
-	            (parts[2] === 'deg' ? Math.PI / 180 :
-	            (parts[2] === 'turn' ? 2 * Math.PI : 1)));
-	        value = +parts[1] * factor;
-	        break;
-	      case 'boolean':
-	        value = !!value && ['false', 'no', 'off'].indexOf(('' + value).toLowerCase()) < 0;
-	        break;
-	      case 'booleanOrNumber':
-	        if ((!value && value !== 0 && value !== '') || ['true', 'false', 'off', 'on', 'no', 'yes'].indexOf(('' + value).toLowerCase()) >= 0) {
-	          value = !!value && ['false', 'no', 'off'].indexOf(('' + value).toLowerCase()) < 0;
-	        } else {
-	          if (!util.isNonNullFinite(value)) {
-	            return;
-	          }
-	          value = +value;
-	        }
-	        break;
-	      case 'coordinate2':
-	        if (value === '') {
-	          break;
-	        }
-	        if (value && util.isNonNullFinite(value.x) && util.isNonNullFinite(value.y)) {
-	          value.x = +value.x;
-	          value.y = +value.y;
-	          break;
-	        }
-	        try { value = JSON.parse(value); } catch (err) { }
-	        if (value && util.isNonNullFinite(value.x) && util.isNonNullFinite(value.y)) {
-	          value.x = +value.x;
-	          value.y = +value.y;
-	          break;
-	        }
-	        if (Array.isArray(value) && util.isNonNullFinite(value[0]) && util.isNonNullFinite(value[1])) {
-	          value = {x: +value[0], y: +value[1]};
-	          break;
-	        }
-	        parts = /^\s*([-.0-9eE]+)(?:\s+|\s*,)\s*([-.0-9eE]+)\s*$/.exec('' + value);
-	        if (!parts || !isFinite(parts[1]) || !isFinite(parts[2])) {
-	          return;
-	        }
-	        value = {x: +parts[1], y: +parts[2]};
-	        break;
-	      case 'color':
-	        value = util.convertColor(value);
-	        if (value === undefined || value.r === undefined) {
-	          return;
-	        }
-	        break;
-	      case 'number':
-	        if (!util.isNonNullFinite(value)) {
-	          return;
-	        }
-	        value = +value;
-	        break;
-	      case 'numberOrBlank':
-	        if (value === '') {
-	          break;
-	        }
-	        if (!util.isNonNullFinite(value)) {
-	          return;
-	        }
-	        value = +value;
-	        break;
-	      case 'opacity':
-	        if (value === undefined || value === null || value === '') {
-	          return;
-	        }
-	        value = +value;
-	        if (isNaN(value) || value < 0 || value > 1) {
-	          return;
-	        }
-	        break;
-	      case 'positive':
-	        value = +value;
-	        if (!isFinite(value) || value <= 0) {
-	          return;
-	        }
-	        break;
-	      case 'text':
-	        value = '' + value;
-	        break;
-	    }
-	    return value;
-	  };
-
-	  /**
-	   * Update layer.
-	   *
-	   * @returns {this} The current layer.
-	   */
-	  this._update = function () {
-	    if (m_this.getMTime() > m_buildTime.getMTime()) {
-	      var labels = this.options('showLabels') ? [] : null;
-	      /* Interally, we have a set of feature levels (to provide z-index
-	       * support), each of which can have data from multiple annotations.  We
-	       * clear the data on each of these features, then build it up from each
-	       * annotation.  Eventually, it may be necessary to optimize this and
-	       * only update the features that are changed.
-	       */
-	      $.each(m_features, function (idx, featureLevel) {
-	        $.each(featureLevel, function (type, feature) {
-	          feature.data = [];
-	          delete feature.feature.scaleOnZoom;
-	        });
-	      });
-	      $.each(m_annotations, function (annotation_idx, annotation) {
-	        var features = annotation.features();
-	        if (labels) {
-	          var annotationLabel = annotation.labelRecord();
-	          if (annotationLabel) {
-	            labels.push(annotationLabel);
-	          }
-	        }
-	        $.each(features, function (idx, featureLevel) {
-	          if (m_features[idx] === undefined) {
-	            m_features[idx] = {};
-	          }
-	          $.each(featureLevel, function (type, featureSpec) {
-	            /* Create features as needed */
-	            if (!m_features[idx][type]) {
-	              var feature = m_this.createFeature(type, {
-	                gcs: m_this.map().gcs()
-	              });
-	              if (!feature) {
-	                /* We can't create the desired feature, porbably because of the
-	                 * selected renderer.  Issue one warning only. */
-	                var key = 'error_feature_' + type;
-	                if (!m_this[key]) {
-	                  console.warn('Cannot create a ' + type + ' feature for ' +
-	                               'annotations.');
-	                  m_this[key] = true;
-	                }
-	                return;
-	              }
-	              /* Since each annotation can have separate styles, the styles are
-	               * combined together with a meta-style function.  Any style that
-	               * could be used should be in this list.  Color styles may be
-	               * restricted to {r, g, b} objects for efficiency, but this
-	               * hasn't been tested.
-	               */
-	              var style = {};
-	              $.each([
-	                'closed', 'fill', 'fillColor', 'fillOpacity', 'line',
-	                'lineCap', 'lineJoin', 'polygon', 'position', 'radius',
-	                'stroke', 'strokeColor', 'strokeOffset', 'strokeOpacity',
-	                'strokeWidth', 'uniformPolygon'
-	              ], function (keyidx, key) {
-	                var origFunc;
-	                if (feature.style()[key] !== undefined) {
-	                  origFunc = feature.style.get(key);
-	                }
-	                style[key] = function (d, i, d2, i2) {
-	                  var style = (
-	                    (d && d.style) ? d.style : (d && d[2] && d[2].style) ?
-	                    d[2].style : d2.style);
-	                  var result = style ? style[key] : d;
-	                  if (util.isFunction(result)) {
-	                    result = result(d, i, d2, i2);
-	                  }
-	                  if (result === undefined && origFunc) {
-	                    result = origFunc(d, i, d2, i2);
-	                  }
-	                  return result;
-	                };
-	              });
-	              feature.style(style);
-	              m_features[idx][type] = {
-	                feature: feature,
-	                style: style,
-	                data: []
-	              };
-	            }
-	            /* Collect the data for each feature */
-	            m_features[idx][type].data.push(featureSpec.data || featureSpec);
-	            if (featureSpec.scaleOnZoom) {
-	              m_features[idx][type].feature.scaleOnZoom = true;
-	            }
-	          });
-	        });
-	      });
-	      /* Update the data for each feature */
-	      $.each(m_features, function (idx, featureLevel) {
-	        $.each(featureLevel, function (type, feature) {
-	          feature.feature.data(feature.data);
-	        });
-	      });
-	      m_this._updateLabels(labels);
-	      m_buildTime.modified();
-	    }
-	    s_update.call(m_this, arguments);
-	    return this;
-	  };
-
-	  /**
-	   * Show or hide annotation labels.  Create or destroy a child layer or a
-	   * feature as needed.
-	   *
-	   * @param {object[]|null} labels The list of labels to display of `null` for
-	   *    no labels.
-	   * @returns {this} The class instance.
-	   */
-	  this._updateLabels = function (labels) {
-	    if (!labels || !labels.length) {
-	      m_this._removeLabelFeature();
-	      return m_this;
-	    }
-	    if (!m_labelFeature) {
-	      var renderer = registry.rendererForFeatures(['text']);
-	      if (renderer !== m_this.renderer().api()) {
-	        m_labelLayer = registry.createLayer('feature', m_this.map(), {renderer: renderer});
-	        m_this.addChild(m_labelLayer);
-	        m_labelLayer._update();
-	        m_this.geoTrigger(geo_event.layerAdd, {
-	          target: m_this,
-	          layer: m_labelLayer
-	        });
-	      }
-	      var style = {};
-	      textFeature.usedStyles.forEach(function (key) {
-	        style[key] = function (d, i) {
-	          if (d.style && d.style[key] !== undefined) {
-	            return d.style[key];
-	          }
-	          return (m_this.options('defaultLabelStyle') || {})[key];
-	        };
-	      });
-	      m_labelFeature = (m_labelLayer || m_this).createFeature('text', {
-	        style: style,
-	        gcs: m_this.map().gcs(),
-	        position: function (d) {
-	          return d.position;
-	        }
-	      });
-	    }
-	    m_labelFeature.data(labels);
-	    return m_this;
-	  };
-
-	  /**
-	   * Check if any features are marked that they need to be updated when a zoom
-	   * occurs.  If so, mark that feature as modified.
-	   */
-	  this._handleZoom = function () {
-	    var i, features = m_this.features();
-	    for (i = 0; i < features.length; i += 1) {
-	      if (features[i].scaleOnZoom) {
-	        features[i].modified();
-	      }
-	    }
-	  };
-
-	  /**
-	   * Remove the label feature if it exists.
-	   *
-	   * @returns {this} The current layer.
-	   */
-	  this._removeLabelFeature = function () {
-	    if (m_labelLayer) {
-	      m_labelLayer._exit();
-	      m_this.removeChild(m_labelLayer);
-	      m_this.geoTrigger(geo_event.layerRemove, {
-	        target: m_this,
-	        layer: m_labelLayer
-	      });
-	      m_labelLayer = m_labelFeature = null;
-	    }
-	    if (m_labelFeature) {
-	      m_this.removeFeature(m_labelFeature);
-	      m_labelFeature = null;
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Update if necessary and draw the layer.
-	   *
-	   * @returns {this} The current layer.
-	   */
-	  this.draw = function () {
-	    m_this._update();
-	    s_draw.call(m_this);
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize.
-	   *
-	   * @returns {this} The current layer.
-	   */
-	  this._init = function () {
-	    // Call super class init
-	    s_init.call(m_this);
-
-	    if (!m_this.map().interactor()) {
-	      m_this.map().interactor(mapInteractor({actions: []}));
-	    }
-	    m_this.geoOn(geo_event.actionselection, m_this._processAction);
-	    m_this.geoOn(geo_event.actionmove, m_this._processAction);
-
-	    m_this.geoOn(geo_event.mouseclick, m_this._handleMouseClick);
-	    m_this.geoOn(geo_event.mousemove, m_this._handleMouseMove);
-
-	    m_this.geoOn(geo_event.zoom, m_this._handleZoom);
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Free all resources.
-	   *
-	   * @returns {this} The current layer.
-	   */
-	  this._exit = function () {
-	    m_this._removeLabelFeature();
-	    // Call super class exit
-	    s_exit.call(m_this);
-	    m_annotations = [];
-	    m_features = [];
-	    return m_this;
-	  };
-
-	  return m_this;
-	};
-
-	inherit(annotationLayer, featureLayer);
-	registry.registerLayer('annotation', annotationLayer);
-	module.exports = annotationLayer;
-
-
-/***/ }),
-/* 220 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var layer = __webpack_require__(210);
-	var geo_event = __webpack_require__(9);
-	var registry = __webpack_require__(201);
-
-	/**
-	 * Layer to draw points, lines, and polygons on the map The polydata layer
-	 * provide mechanisms to create and draw geometrical shapes such as points,
-	 * lines, and polygons.
-	 * @class geo.featureLayer
-	 * @extends geo.layer
-	 * @returns {geo.featureLayer}
-	 */
-	var featureLayer = function (arg) {
-	  'use strict';
-	  if (!(this instanceof featureLayer)) {
-	    return new featureLayer(arg);
-	  }
-	  layer.call(this, arg);
-
-	  /**
-	   * private
-	   */
-	  var m_this = this,
-	      m_features = [],
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      s_update = this._update,
-	      s_visible = this.visible,
-	      s_selectionAPI = this.selectionAPI,
-	      s_draw = this.draw;
-
-	  /**
-	   * Create feature give a name
-	   *
-	   * @param {string} featureName the name of the feature to create
-	   * @param {object} arg properties for the new feature
-	   * @returns {geo.Feature} Will return a new feature
-	   */
-	  this.createFeature = function (featureName, arg) {
-
-	    var newFeature = registry.createFeature(
-	      featureName, m_this, m_this.renderer(), arg);
-	    if (newFeature) {
-	      this.addFeature(newFeature);
-	    }
-	    return newFeature;
-	  };
-
-	  /**
-	   * Add a feature to the layer if it is not already present.
-	   *
-	   * @param {object} feature the feature to add.
-	   */
-	  this.addFeature = function (feature) {
-	    /* try to remove the feature first so that we don't have two copies */
-	    this.removeFeature(feature);
-	    m_this.addChild(feature);
-	    m_features.push(feature);
-	    m_this.dataTime().modified();
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Remove feature without destroying it
-	   *
-	   * @param {object} feature the feature to remove.
-	   */
-	  this.removeFeature = function (feature) {
-	    var pos;
-
-	    pos = m_features.indexOf(feature);
-	    if (pos >= 0) {
-	      m_features.splice(pos, 1);
-	      m_this.removeChild(feature);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Delete feature
-	   *
-	   * @param {object} feature the feature to delete.
-	   */
-	  this.deleteFeature = function (feature) {
-
-	    // call _exit first, as destroying the feature affect other features
-	    if (feature) {
-	      if (m_features.indexOf(feature) >= 0) {
-	        feature._exit();
-	      }
-	      this.removeFeature(feature);
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set drawables
-	   *
-	   * @returns {Array}
-	   */
-	  this.features = function (val) {
-	    if (val === undefined) {
-	      return m_features.slice();
-	    } else {
-	      // delete existing features that aren't in the new array.  Since features
-	      // can affect other features during their exit process, make sure each
-	      // feature still exists as we work through the list.
-	      var existing = m_features.slice();
-	      var i;
-	      for (i = 0; i < existing.length; i += 1) {
-	        if (val.indexOf(existing[i]) < 0 && m_features.indexOf(existing[i]) >= 0) {
-	          this.deleteFeature(existing[i]);
-	        }
-	      }
-	      for (i = 0; i < val.length; i += 1) {
-	        this.addFeature(val[i]);
-	      }
-	      return m_this;
-	    }
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    if (m_this.initialized()) {
-	      return m_this;
-	    }
-
-	    // Call super class init
-	    s_init.call(m_this, true);
-
-	    // Bind events to handlers
-	    m_this.geoOn(geo_event.resize, function (event) {
-	      if (m_this.renderer()) {
-	        m_this.renderer()._resize(event.x, event.y, event.width, event.height);
-	        m_this._update({event: event});
-	        m_this.renderer()._render();
-	      } else {
-	        m_this._update({event: event});
-	      }
-	    });
-
-	    m_this.geoOn(geo_event.pan, function (event) {
-	      m_this._update({event: event});
-	      if (m_this.renderer()) {
-	        m_this.renderer()._render();
-	      }
-	    });
-
-	    m_this.geoOn(geo_event.rotate, function (event) {
-	      m_this._update({event: event});
-	      if (m_this.renderer()) {
-	        m_this.renderer()._render();
-	      }
-	    });
-
-	    m_this.geoOn(geo_event.zoom, function (event) {
-	      m_this._update({event: event});
-	      if (m_this.renderer()) {
-	        m_this.renderer()._render();
-	      }
-	    });
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Update layer
-	   */
-	  this._update = function (request) {
-	    var i;
-
-	    if (!m_features.length) {
-	      return m_this;
-	    }
-
-	    // Call base class update
-	    s_update.call(m_this, request);
-
-	    if (m_this.dataTime().getMTime() > m_this.updateTime().getMTime()) {
-	      for (i = 0; i < m_features.length; i += 1) {
-	        m_features[i].renderer(m_this.renderer());
-	      }
-	    }
-
-	    for (i = 0; i < m_features.length; i += 1) {
-	      m_features[i]._update();
-	    }
-
-	    m_this.updateTime().modified();
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Free all resources
-	   */
-	  this._exit = function () {
-	    m_this.clear();
-	    s_exit();
-	  };
-
-	  /**
-	   * Draw
-	   */
-	  this.draw = function () {
-	    if (m_this.visible()) {
-	      // Call sceneObject.draw, which calls draw on all child objects.
-	      s_draw();
-
-	      // Now call render on the renderer. In certain cases it may not do
-	      // anything if the child objects are drawn on the screen already.
-	      if (m_this.renderer()) {
-	        m_this.renderer()._render();
-	      }
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set visibility of the layer
-	   *
-	   * @param {boolean|undefined} val: undefined to return the visibility, a
-	   *    boolean to change the visibility.
-	   * @return {boolean|object} either the visibility (if getting) or the layer
-	   *    (if setting).
-	   */
-	  this.visible = function (val) {
-	    if (val === undefined) {
-	      return s_visible();
-	    }
-	    if (m_this.visible() !== val) {
-	      s_visible(val);
-
-	      // take a copy of the features; changing visible could mutate them.
-	      var features = m_features.slice(), i;
-
-	      for (i = 0; i < features.length; i += 1) {
-	        features[i].visible(features[i].visible(undefined, true), true);
-	      }
-	      if (val) {
-	        m_this.draw();
-	      }
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set selectionAPI of the layer
-	   *
-	   * @param {boolean|undefined} val: undefined to return the selectionAPI
-	   *    state, or a boolean to change it.
-	   * @return {boolean|object} either the selectionAPI state (if getting) or the
-	   *    layer (if setting).
-	   */
-	  this.selectionAPI = function (val) {
-	    if (val === undefined) {
-	      return s_selectionAPI();
-	    }
-	    if (m_this.selectionAPI() !== val) {
-	      s_selectionAPI(val);
-
-	      // take a copy of the features; changing selectionAPI could mutate them.
-	      var features = m_features.slice(), i;
-
-	      for (i = 0; i < features.length; i += 1) {
-	        features[i].selectionAPI(features[i].selectionAPI(undefined, true), true);
-	      }
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Clear all features in layer
-	   */
-	  this.clear = function () {
-	    while (m_features.length) {
-	      m_this.deleteFeature(m_features[0]);
-	    }
-	    return m_this;
-	  };
-
-	  return m_this;
-	};
-
-	inherit(featureLayer, layer);
-	registry.registerLayer('feature', featureLayer);
-	module.exports = featureLayer;
-
-
-/***/ }),
-/* 221 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var __WEBPACK_AMD_DEFINE_RESULT__;/*global define:false */
-	/**
-	 * Copyright 2012-2017 Craig Campbell
-	 *
-	 * Licensed under the Apache License, Version 2.0 (the "License");
-	 * you may not use this file except in compliance with the License.
-	 * You may obtain a copy of the License at
-	 *
-	 * http://www.apache.org/licenses/LICENSE-2.0
-	 *
-	 * Unless required by applicable law or agreed to in writing, software
-	 * distributed under the License is distributed on an "AS IS" BASIS,
-	 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-	 * See the License for the specific language governing permissions and
-	 * limitations under the License.
-	 *
-	 * Mousetrap is a simple keyboard shortcut library for Javascript with
-	 * no external dependencies
-	 *
-	 * @version 1.6.1
-	 * @url craig.is/killing/mice
-	 */
-	(function(window, document, undefined) {
-
-	    // Check if mousetrap is used inside browser, if not, return
-	    if (!window) {
-	        return;
-	    }
-
-	    /**
-	     * mapping of special keycodes to their corresponding keys
-	     *
-	     * everything in this dictionary cannot use keypress events
-	     * so it has to be here to map to the correct keycodes for
-	     * keyup/keydown events
-	     *
-	     * @type {Object}
-	     */
-	    var _MAP = {
-	        8: 'backspace',
-	        9: 'tab',
-	        13: 'enter',
-	        16: 'shift',
-	        17: 'ctrl',
-	        18: 'alt',
-	        20: 'capslock',
-	        27: 'esc',
-	        32: 'space',
-	        33: 'pageup',
-	        34: 'pagedown',
-	        35: 'end',
-	        36: 'home',
-	        37: 'left',
-	        38: 'up',
-	        39: 'right',
-	        40: 'down',
-	        45: 'ins',
-	        46: 'del',
-	        91: 'meta',
-	        93: 'meta',
-	        224: 'meta'
-	    };
-
-	    /**
-	     * mapping for special characters so they can support
-	     *
-	     * this dictionary is only used incase you want to bind a
-	     * keyup or keydown event to one of these keys
-	     *
-	     * @type {Object}
-	     */
-	    var _KEYCODE_MAP = {
-	        106: '*',
-	        107: '+',
-	        109: '-',
-	        110: '.',
-	        111 : '/',
-	        186: ';',
-	        187: '=',
-	        188: ',',
-	        189: '-',
-	        190: '.',
-	        191: '/',
-	        192: '`',
-	        219: '[',
-	        220: '\\',
-	        221: ']',
-	        222: '\''
-	    };
-
-	    /**
-	     * this is a mapping of keys that require shift on a US keypad
-	     * back to the non shift equivelents
-	     *
-	     * this is so you can use keyup events with these keys
-	     *
-	     * note that this will only work reliably on US keyboards
-	     *
-	     * @type {Object}
-	     */
-	    var _SHIFT_MAP = {
-	        '~': '`',
-	        '!': '1',
-	        '@': '2',
-	        '#': '3',
-	        '$': '4',
-	        '%': '5',
-	        '^': '6',
-	        '&': '7',
-	        '*': '8',
-	        '(': '9',
-	        ')': '0',
-	        '_': '-',
-	        '+': '=',
-	        ':': ';',
-	        '\"': '\'',
-	        '<': ',',
-	        '>': '.',
-	        '?': '/',
-	        '|': '\\'
-	    };
-
-	    /**
-	     * this is a list of special strings you can use to map
-	     * to modifier keys when you specify your keyboard shortcuts
-	     *
-	     * @type {Object}
-	     */
-	    var _SPECIAL_ALIASES = {
-	        'option': 'alt',
-	        'command': 'meta',
-	        'return': 'enter',
-	        'escape': 'esc',
-	        'plus': '+',
-	        'mod': /Mac|iPod|iPhone|iPad/.test(navigator.platform) ? 'meta' : 'ctrl'
-	    };
-
-	    /**
-	     * variable to store the flipped version of _MAP from above
-	     * needed to check if we should use keypress or not when no action
-	     * is specified
-	     *
-	     * @type {Object|undefined}
-	     */
-	    var _REVERSE_MAP;
-
-	    /**
-	     * loop through the f keys, f1 to f19 and add them to the map
-	     * programatically
-	     */
-	    for (var i = 1; i < 20; ++i) {
-	        _MAP[111 + i] = 'f' + i;
-	    }
-
-	    /**
-	     * loop through to map numbers on the numeric keypad
-	     */
-	    for (i = 0; i <= 9; ++i) {
-
-	        // This needs to use a string cause otherwise since 0 is falsey
-	        // mousetrap will never fire for numpad 0 pressed as part of a keydown
-	        // event.
-	        //
-	        // @see https://github.com/ccampbell/mousetrap/pull/258
-	        _MAP[i + 96] = i.toString();
-	    }
-
-	    /**
-	     * cross browser add event method
-	     *
-	     * @param {Element|HTMLDocument} object
-	     * @param {string} type
-	     * @param {Function} callback
-	     * @returns void
-	     */
-	    function _addEvent(object, type, callback) {
-	        if (object.addEventListener) {
-	            object.addEventListener(type, callback, false);
-	            return;
-	        }
-
-	        object.attachEvent('on' + type, callback);
-	    }
-
-	    /**
-	     * takes the event and returns the key character
-	     *
-	     * @param {Event} e
-	     * @return {string}
-	     */
-	    function _characterFromEvent(e) {
-
-	        // for keypress events we should return the character as is
-	        if (e.type == 'keypress') {
-	            var character = String.fromCharCode(e.which);
-
-	            // if the shift key is not pressed then it is safe to assume
-	            // that we want the character to be lowercase.  this means if
-	            // you accidentally have caps lock on then your key bindings
-	            // will continue to work
-	            //
-	            // the only side effect that might not be desired is if you
-	            // bind something like 'A' cause you want to trigger an
-	            // event when capital A is pressed caps lock will no longer
-	            // trigger the event.  shift+a will though.
-	            if (!e.shiftKey) {
-	                character = character.toLowerCase();
-	            }
-
-	            return character;
-	        }
-
-	        // for non keypress events the special maps are needed
-	        if (_MAP[e.which]) {
-	            return _MAP[e.which];
-	        }
-
-	        if (_KEYCODE_MAP[e.which]) {
-	            return _KEYCODE_MAP[e.which];
-	        }
-
-	        // if it is not in the special map
-
-	        // with keydown and keyup events the character seems to always
-	        // come in as an uppercase character whether you are pressing shift
-	        // or not.  we should make sure it is always lowercase for comparisons
-	        return String.fromCharCode(e.which).toLowerCase();
-	    }
-
-	    /**
-	     * checks if two arrays are equal
-	     *
-	     * @param {Array} modifiers1
-	     * @param {Array} modifiers2
-	     * @returns {boolean}
-	     */
-	    function _modifiersMatch(modifiers1, modifiers2) {
-	        return modifiers1.sort().join(',') === modifiers2.sort().join(',');
-	    }
-
-	    /**
-	     * takes a key event and figures out what the modifiers are
-	     *
-	     * @param {Event} e
-	     * @returns {Array}
-	     */
-	    function _eventModifiers(e) {
-	        var modifiers = [];
-
-	        if (e.shiftKey) {
-	            modifiers.push('shift');
-	        }
-
-	        if (e.altKey) {
-	            modifiers.push('alt');
-	        }
-
-	        if (e.ctrlKey) {
-	            modifiers.push('ctrl');
-	        }
-
-	        if (e.metaKey) {
-	            modifiers.push('meta');
-	        }
-
-	        return modifiers;
-	    }
-
-	    /**
-	     * prevents default for this event
-	     *
-	     * @param {Event} e
-	     * @returns void
-	     */
-	    function _preventDefault(e) {
-	        if (e.preventDefault) {
-	            e.preventDefault();
-	            return;
-	        }
-
-	        e.returnValue = false;
-	    }
-
-	    /**
-	     * stops propogation for this event
-	     *
-	     * @param {Event} e
-	     * @returns void
-	     */
-	    function _stopPropagation(e) {
-	        if (e.stopPropagation) {
-	            e.stopPropagation();
-	            return;
-	        }
-
-	        e.cancelBubble = true;
-	    }
-
-	    /**
-	     * determines if the keycode specified is a modifier key or not
-	     *
-	     * @param {string} key
-	     * @returns {boolean}
-	     */
-	    function _isModifier(key) {
-	        return key == 'shift' || key == 'ctrl' || key == 'alt' || key == 'meta';
-	    }
-
-	    /**
-	     * reverses the map lookup so that we can look for specific keys
-	     * to see what can and can't use keypress
-	     *
-	     * @return {Object}
-	     */
-	    function _getReverseMap() {
-	        if (!_REVERSE_MAP) {
-	            _REVERSE_MAP = {};
-	            for (var key in _MAP) {
-
-	                // pull out the numeric keypad from here cause keypress should
-	                // be able to detect the keys from the character
-	                if (key > 95 && key < 112) {
-	                    continue;
-	                }
-
-	                if (_MAP.hasOwnProperty(key)) {
-	                    _REVERSE_MAP[_MAP[key]] = key;
-	                }
-	            }
-	        }
-	        return _REVERSE_MAP;
-	    }
-
-	    /**
-	     * picks the best action based on the key combination
-	     *
-	     * @param {string} key - character for key
-	     * @param {Array} modifiers
-	     * @param {string=} action passed in
-	     */
-	    function _pickBestAction(key, modifiers, action) {
-
-	        // if no action was picked in we should try to pick the one
-	        // that we think would work best for this key
-	        if (!action) {
-	            action = _getReverseMap()[key] ? 'keydown' : 'keypress';
-	        }
-
-	        // modifier keys don't work as expected with keypress,
-	        // switch to keydown
-	        if (action == 'keypress' && modifiers.length) {
-	            action = 'keydown';
-	        }
-
-	        return action;
-	    }
-
-	    /**
-	     * Converts from a string key combination to an array
-	     *
-	     * @param  {string} combination like "command+shift+l"
-	     * @return {Array}
-	     */
-	    function _keysFromString(combination) {
-	        if (combination === '+') {
-	            return ['+'];
-	        }
-
-	        combination = combination.replace(/\+{2}/g, '+plus');
-	        return combination.split('+');
-	    }
-
-	    /**
-	     * Gets info for a specific key combination
-	     *
-	     * @param  {string} combination key combination ("command+s" or "a" or "*")
-	     * @param  {string=} action
-	     * @returns {Object}
-	     */
-	    function _getKeyInfo(combination, action) {
-	        var keys;
-	        var key;
-	        var i;
-	        var modifiers = [];
-
-	        // take the keys from this pattern and figure out what the actual
-	        // pattern is all about
-	        keys = _keysFromString(combination);
-
-	        for (i = 0; i < keys.length; ++i) {
-	            key = keys[i];
-
-	            // normalize key names
-	            if (_SPECIAL_ALIASES[key]) {
-	                key = _SPECIAL_ALIASES[key];
-	            }
-
-	            // if this is not a keypress event then we should
-	            // be smart about using shift keys
-	            // this will only work for US keyboards however
-	            if (action && action != 'keypress' && _SHIFT_MAP[key]) {
-	                key = _SHIFT_MAP[key];
-	                modifiers.push('shift');
-	            }
-
-	            // if this key is a modifier then add it to the list of modifiers
-	            if (_isModifier(key)) {
-	                modifiers.push(key);
-	            }
-	        }
-
-	        // depending on what the key combination is
-	        // we will try to pick the best event for it
-	        action = _pickBestAction(key, modifiers, action);
-
-	        return {
-	            key: key,
-	            modifiers: modifiers,
-	            action: action
-	        };
-	    }
-
-	    function _belongsTo(element, ancestor) {
-	        if (element === null || element === document) {
-	            return false;
-	        }
-
-	        if (element === ancestor) {
-	            return true;
-	        }
-
-	        return _belongsTo(element.parentNode, ancestor);
-	    }
-
-	    function Mousetrap(targetElement) {
-	        var self = this;
-
-	        targetElement = targetElement || document;
-
-	        if (!(self instanceof Mousetrap)) {
-	            return new Mousetrap(targetElement);
-	        }
-
-	        /**
-	         * element to attach key events to
-	         *
-	         * @type {Element}
-	         */
-	        self.target = targetElement;
-
-	        /**
-	         * a list of all the callbacks setup via Mousetrap.bind()
-	         *
-	         * @type {Object}
-	         */
-	        self._callbacks = {};
-
-	        /**
-	         * direct map of string combinations to callbacks used for trigger()
-	         *
-	         * @type {Object}
-	         */
-	        self._directMap = {};
-
-	        /**
-	         * keeps track of what level each sequence is at since multiple
-	         * sequences can start out with the same sequence
-	         *
-	         * @type {Object}
-	         */
-	        var _sequenceLevels = {};
-
-	        /**
-	         * variable to store the setTimeout call
-	         *
-	         * @type {null|number}
-	         */
-	        var _resetTimer;
-
-	        /**
-	         * temporary state where we will ignore the next keyup
-	         *
-	         * @type {boolean|string}
-	         */
-	        var _ignoreNextKeyup = false;
-
-	        /**
-	         * temporary state where we will ignore the next keypress
-	         *
-	         * @type {boolean}
-	         */
-	        var _ignoreNextKeypress = false;
-
-	        /**
-	         * are we currently inside of a sequence?
-	         * type of action ("keyup" or "keydown" or "keypress") or false
-	         *
-	         * @type {boolean|string}
-	         */
-	        var _nextExpectedAction = false;
-
-	        /**
-	         * resets all sequence counters except for the ones passed in
-	         *
-	         * @param {Object} doNotReset
-	         * @returns void
-	         */
-	        function _resetSequences(doNotReset) {
-	            doNotReset = doNotReset || {};
-
-	            var activeSequences = false,
-	                key;
-
-	            for (key in _sequenceLevels) {
-	                if (doNotReset[key]) {
-	                    activeSequences = true;
-	                    continue;
-	                }
-	                _sequenceLevels[key] = 0;
-	            }
-
-	            if (!activeSequences) {
-	                _nextExpectedAction = false;
-	            }
-	        }
-
-	        /**
-	         * finds all callbacks that match based on the keycode, modifiers,
-	         * and action
-	         *
-	         * @param {string} character
-	         * @param {Array} modifiers
-	         * @param {Event|Object} e
-	         * @param {string=} sequenceName - name of the sequence we are looking for
-	         * @param {string=} combination
-	         * @param {number=} level
-	         * @returns {Array}
-	         */
-	        function _getMatches(character, modifiers, e, sequenceName, combination, level) {
-	            var i;
-	            var callback;
-	            var matches = [];
-	            var action = e.type;
-
-	            // if there are no events related to this keycode
-	            if (!self._callbacks[character]) {
-	                return [];
-	            }
-
-	            // if a modifier key is coming up on its own we should allow it
-	            if (action == 'keyup' && _isModifier(character)) {
-	                modifiers = [character];
-	            }
-
-	            // loop through all callbacks for the key that was pressed
-	            // and see if any of them match
-	            for (i = 0; i < self._callbacks[character].length; ++i) {
-	                callback = self._callbacks[character][i];
-
-	                // if a sequence name is not specified, but this is a sequence at
-	                // the wrong level then move onto the next match
-	                if (!sequenceName && callback.seq && _sequenceLevels[callback.seq] != callback.level) {
-	                    continue;
-	                }
-
-	                // if the action we are looking for doesn't match the action we got
-	                // then we should keep going
-	                if (action != callback.action) {
-	                    continue;
-	                }
-
-	                // if this is a keypress event and the meta key and control key
-	                // are not pressed that means that we need to only look at the
-	                // character, otherwise check the modifiers as well
-	                //
-	                // chrome will not fire a keypress if meta or control is down
-	                // safari will fire a keypress if meta or meta+shift is down
-	                // firefox will fire a keypress if meta or control is down
-	                if ((action == 'keypress' && !e.metaKey && !e.ctrlKey) || _modifiersMatch(modifiers, callback.modifiers)) {
-
-	                    // when you bind a combination or sequence a second time it
-	                    // should overwrite the first one.  if a sequenceName or
-	                    // combination is specified in this call it does just that
-	                    //
-	                    // @todo make deleting its own method?
-	                    var deleteCombo = !sequenceName && callback.combo == combination;
-	                    var deleteSequence = sequenceName && callback.seq == sequenceName && callback.level == level;
-	                    if (deleteCombo || deleteSequence) {
-	                        self._callbacks[character].splice(i, 1);
-	                    }
-
-	                    matches.push(callback);
-	                }
-	            }
-
-	            return matches;
-	        }
-
-	        /**
-	         * actually calls the callback function
-	         *
-	         * if your callback function returns false this will use the jquery
-	         * convention - prevent default and stop propogation on the event
-	         *
-	         * @param {Function} callback
-	         * @param {Event} e
-	         * @returns void
-	         */
-	        function _fireCallback(callback, e, combo, sequence) {
-
-	            // if this event should not happen stop here
-	            if (self.stopCallback(e, e.target || e.srcElement, combo, sequence)) {
-	                return;
-	            }
-
-	            if (callback(e, combo) === false) {
-	                _preventDefault(e);
-	                _stopPropagation(e);
-	            }
-	        }
-
-	        /**
-	         * handles a character key event
-	         *
-	         * @param {string} character
-	         * @param {Array} modifiers
-	         * @param {Event} e
-	         * @returns void
-	         */
-	        self._handleKey = function(character, modifiers, e) {
-	            var callbacks = _getMatches(character, modifiers, e);
-	            var i;
-	            var doNotReset = {};
-	            var maxLevel = 0;
-	            var processedSequenceCallback = false;
-
-	            // Calculate the maxLevel for sequences so we can only execute the longest callback sequence
-	            for (i = 0; i < callbacks.length; ++i) {
-	                if (callbacks[i].seq) {
-	                    maxLevel = Math.max(maxLevel, callbacks[i].level);
-	                }
-	            }
-
-	            // loop through matching callbacks for this key event
-	            for (i = 0; i < callbacks.length; ++i) {
-
-	                // fire for all sequence callbacks
-	                // this is because if for example you have multiple sequences
-	                // bound such as "g i" and "g t" they both need to fire the
-	                // callback for matching g cause otherwise you can only ever
-	                // match the first one
-	                if (callbacks[i].seq) {
-
-	                    // only fire callbacks for the maxLevel to prevent
-	                    // subsequences from also firing
-	                    //
-	                    // for example 'a option b' should not cause 'option b' to fire
-	                    // even though 'option b' is part of the other sequence
-	                    //
-	                    // any sequences that do not match here will be discarded
-	                    // below by the _resetSequences call
-	                    if (callbacks[i].level != maxLevel) {
-	                        continue;
-	                    }
-
-	                    processedSequenceCallback = true;
-
-	                    // keep a list of which sequences were matches for later
-	                    doNotReset[callbacks[i].seq] = 1;
-	                    _fireCallback(callbacks[i].callback, e, callbacks[i].combo, callbacks[i].seq);
-	                    continue;
-	                }
-
-	                // if there were no sequence matches but we are still here
-	                // that means this is a regular match so we should fire that
-	                if (!processedSequenceCallback) {
-	                    _fireCallback(callbacks[i].callback, e, callbacks[i].combo);
-	                }
-	            }
-
-	            // if the key you pressed matches the type of sequence without
-	            // being a modifier (ie "keyup" or "keypress") then we should
-	            // reset all sequences that were not matched by this event
-	            //
-	            // this is so, for example, if you have the sequence "h a t" and you
-	            // type "h e a r t" it does not match.  in this case the "e" will
-	            // cause the sequence to reset
-	            //
-	            // modifier keys are ignored because you can have a sequence
-	            // that contains modifiers such as "enter ctrl+space" and in most
-	            // cases the modifier key will be pressed before the next key
-	            //
-	            // also if you have a sequence such as "ctrl+b a" then pressing the
-	            // "b" key will trigger a "keypress" and a "keydown"
-	            //
-	            // the "keydown" is expected when there is a modifier, but the
-	            // "keypress" ends up matching the _nextExpectedAction since it occurs
-	            // after and that causes the sequence to reset
-	            //
-	            // we ignore keypresses in a sequence that directly follow a keydown
-	            // for the same character
-	            var ignoreThisKeypress = e.type == 'keypress' && _ignoreNextKeypress;
-	            if (e.type == _nextExpectedAction && !_isModifier(character) && !ignoreThisKeypress) {
-	                _resetSequences(doNotReset);
-	            }
-
-	            _ignoreNextKeypress = processedSequenceCallback && e.type == 'keydown';
-	        };
-
-	        /**
-	         * handles a keydown event
-	         *
-	         * @param {Event} e
-	         * @returns void
-	         */
-	        function _handleKeyEvent(e) {
-
-	            // normalize e.which for key events
-	            // @see http://stackoverflow.com/questions/4285627/javascript-keycode-vs-charcode-utter-confusion
-	            if (typeof e.which !== 'number') {
-	                e.which = e.keyCode;
-	            }
-
-	            var character = _characterFromEvent(e);
-
-	            // no character found then stop
-	            if (!character) {
-	                return;
-	            }
-
-	            // need to use === for the character check because the character can be 0
-	            if (e.type == 'keyup' && _ignoreNextKeyup === character) {
-	                _ignoreNextKeyup = false;
-	                return;
-	            }
-
-	            self.handleKey(character, _eventModifiers(e), e);
-	        }
-
-	        /**
-	         * called to set a 1 second timeout on the specified sequence
-	         *
-	         * this is so after each key press in the sequence you have 1 second
-	         * to press the next key before you have to start over
-	         *
-	         * @returns void
-	         */
-	        function _resetSequenceTimer() {
-	            clearTimeout(_resetTimer);
-	            _resetTimer = setTimeout(_resetSequences, 1000);
-	        }
-
-	        /**
-	         * binds a key sequence to an event
-	         *
-	         * @param {string} combo - combo specified in bind call
-	         * @param {Array} keys
-	         * @param {Function} callback
-	         * @param {string=} action
-	         * @returns void
-	         */
-	        function _bindSequence(combo, keys, callback, action) {
-
-	            // start off by adding a sequence level record for this combination
-	            // and setting the level to 0
-	            _sequenceLevels[combo] = 0;
-
-	            /**
-	             * callback to increase the sequence level for this sequence and reset
-	             * all other sequences that were active
-	             *
-	             * @param {string} nextAction
-	             * @returns {Function}
-	             */
-	            function _increaseSequence(nextAction) {
-	                return function() {
-	                    _nextExpectedAction = nextAction;
-	                    ++_sequenceLevels[combo];
-	                    _resetSequenceTimer();
-	                };
-	            }
-
-	            /**
-	             * wraps the specified callback inside of another function in order
-	             * to reset all sequence counters as soon as this sequence is done
-	             *
-	             * @param {Event} e
-	             * @returns void
-	             */
-	            function _callbackAndReset(e) {
-	                _fireCallback(callback, e, combo);
-
-	                // we should ignore the next key up if the action is key down
-	                // or keypress.  this is so if you finish a sequence and
-	                // release the key the final key will not trigger a keyup
-	                if (action !== 'keyup') {
-	                    _ignoreNextKeyup = _characterFromEvent(e);
-	                }
-
-	                // weird race condition if a sequence ends with the key
-	                // another sequence begins with
-	                setTimeout(_resetSequences, 10);
-	            }
-
-	            // loop through keys one at a time and bind the appropriate callback
-	            // function.  for any key leading up to the final one it should
-	            // increase the sequence. after the final, it should reset all sequences
-	            //
-	            // if an action is specified in the original bind call then that will
-	            // be used throughout.  otherwise we will pass the action that the
-	            // next key in the sequence should match.  this allows a sequence
-	            // to mix and match keypress and keydown events depending on which
-	            // ones are better suited to the key provided
-	            for (var i = 0; i < keys.length; ++i) {
-	                var isFinal = i + 1 === keys.length;
-	                var wrappedCallback = isFinal ? _callbackAndReset : _increaseSequence(action || _getKeyInfo(keys[i + 1]).action);
-	                _bindSingle(keys[i], wrappedCallback, action, combo, i);
-	            }
-	        }
-
-	        /**
-	         * binds a single keyboard combination
-	         *
-	         * @param {string} combination
-	         * @param {Function} callback
-	         * @param {string=} action
-	         * @param {string=} sequenceName - name of sequence if part of sequence
-	         * @param {number=} level - what part of the sequence the command is
-	         * @returns void
-	         */
-	        function _bindSingle(combination, callback, action, sequenceName, level) {
-
-	            // store a direct mapped reference for use with Mousetrap.trigger
-	            self._directMap[combination + ':' + action] = callback;
-
-	            // make sure multiple spaces in a row become a single space
-	            combination = combination.replace(/\s+/g, ' ');
-
-	            var sequence = combination.split(' ');
-	            var info;
-
-	            // if this pattern is a sequence of keys then run through this method
-	            // to reprocess each pattern one key at a time
-	            if (sequence.length > 1) {
-	                _bindSequence(combination, sequence, callback, action);
-	                return;
-	            }
-
-	            info = _getKeyInfo(combination, action);
-
-	            // make sure to initialize array if this is the first time
-	            // a callback is added for this key
-	            self._callbacks[info.key] = self._callbacks[info.key] || [];
-
-	            // remove an existing match if there is one
-	            _getMatches(info.key, info.modifiers, {type: info.action}, sequenceName, combination, level);
-
-	            // add this call back to the array
-	            // if it is a sequence put it at the beginning
-	            // if not put it at the end
-	            //
-	            // this is important because the way these are processed expects
-	            // the sequence ones to come first
-	            self._callbacks[info.key][sequenceName ? 'unshift' : 'push']({
-	                callback: callback,
-	                modifiers: info.modifiers,
-	                action: info.action,
-	                seq: sequenceName,
-	                level: level,
-	                combo: combination
-	            });
-	        }
-
-	        /**
-	         * binds multiple combinations to the same callback
-	         *
-	         * @param {Array} combinations
-	         * @param {Function} callback
-	         * @param {string|undefined} action
-	         * @returns void
-	         */
-	        self._bindMultiple = function(combinations, callback, action) {
-	            for (var i = 0; i < combinations.length; ++i) {
-	                _bindSingle(combinations[i], callback, action);
-	            }
-	        };
-
-	        // start!
-	        _addEvent(targetElement, 'keypress', _handleKeyEvent);
-	        _addEvent(targetElement, 'keydown', _handleKeyEvent);
-	        _addEvent(targetElement, 'keyup', _handleKeyEvent);
-	    }
-
-	    /**
-	     * binds an event to mousetrap
-	     *
-	     * can be a single key, a combination of keys separated with +,
-	     * an array of keys, or a sequence of keys separated by spaces
-	     *
-	     * be sure to list the modifier keys first to make sure that the
-	     * correct key ends up getting bound (the last key in the pattern)
-	     *
-	     * @param {string|Array} keys
-	     * @param {Function} callback
-	     * @param {string=} action - 'keypress', 'keydown', or 'keyup'
-	     * @returns void
-	     */
-	    Mousetrap.prototype.bind = function(keys, callback, action) {
-	        var self = this;
-	        keys = keys instanceof Array ? keys : [keys];
-	        self._bindMultiple.call(self, keys, callback, action);
-	        return self;
-	    };
-
-	    /**
-	     * unbinds an event to mousetrap
-	     *
-	     * the unbinding sets the callback function of the specified key combo
-	     * to an empty function and deletes the corresponding key in the
-	     * _directMap dict.
-	     *
-	     * TODO: actually remove this from the _callbacks dictionary instead
-	     * of binding an empty function
-	     *
-	     * the keycombo+action has to be exactly the same as
-	     * it was defined in the bind method
-	     *
-	     * @param {string|Array} keys
-	     * @param {string} action
-	     * @returns void
-	     */
-	    Mousetrap.prototype.unbind = function(keys, action) {
-	        var self = this;
-	        return self.bind.call(self, keys, function() {}, action);
-	    };
-
-	    /**
-	     * triggers an event that has already been bound
-	     *
-	     * @param {string} keys
-	     * @param {string=} action
-	     * @returns void
-	     */
-	    Mousetrap.prototype.trigger = function(keys, action) {
-	        var self = this;
-	        if (self._directMap[keys + ':' + action]) {
-	            self._directMap[keys + ':' + action]({}, keys);
-	        }
-	        return self;
-	    };
-
-	    /**
-	     * resets the library back to its initial state.  this is useful
-	     * if you want to clear out the current keyboard shortcuts and bind
-	     * new ones - for example if you switch to another page
-	     *
-	     * @returns void
-	     */
-	    Mousetrap.prototype.reset = function() {
-	        var self = this;
-	        self._callbacks = {};
-	        self._directMap = {};
-	        return self;
-	    };
-
-	    /**
-	     * should we stop this event before firing off callbacks
-	     *
-	     * @param {Event} e
-	     * @param {Element} element
-	     * @return {boolean}
-	     */
-	    Mousetrap.prototype.stopCallback = function(e, element) {
-	        var self = this;
-
-	        // if the element has the class "mousetrap" then no need to stop
-	        if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) {
-	            return false;
-	        }
-
-	        if (_belongsTo(element, self.target)) {
-	            return false;
-	        }
-
-	        // stop for input, select, and textarea
-	        return element.tagName == 'INPUT' || element.tagName == 'SELECT' || element.tagName == 'TEXTAREA' || element.isContentEditable;
-	    };
-
-	    /**
-	     * exposes _handleKey publicly so it can be overwritten by extensions
-	     */
-	    Mousetrap.prototype.handleKey = function() {
-	        var self = this;
-	        return self._handleKey.apply(self, arguments);
-	    };
-
-	    /**
-	     * allow custom key mappings
-	     */
-	    Mousetrap.addKeycodes = function(object) {
-	        for (var key in object) {
-	            if (object.hasOwnProperty(key)) {
-	                _MAP[key] = object[key];
-	            }
-	        }
-	        _REVERSE_MAP = null;
-	    };
-
-	    /**
-	     * Init the global mousetrap functions
-	     *
-	     * This method is needed to allow the global mousetrap functions to work
-	     * now that mousetrap is a constructor function.
-	     */
-	    Mousetrap.init = function() {
-	        var documentMousetrap = Mousetrap(document);
-	        for (var method in documentMousetrap) {
-	            if (method.charAt(0) !== '_') {
-	                Mousetrap[method] = (function(method) {
-	                    return function() {
-	                        return documentMousetrap[method].apply(documentMousetrap, arguments);
-	                    };
-	                } (method));
-	            }
-	        }
-	    };
-
-	    Mousetrap.init();
-
-	    // expose mousetrap to the global object
-	    window.Mousetrap = Mousetrap;
-
-	    // expose as a common js module
-	    if (typeof module !== 'undefined' && module.exports) {
-	        module.exports = Mousetrap;
-	    }
-
-	    // expose mousetrap as an AMD module
-	    if (true) {
-	        !(__WEBPACK_AMD_DEFINE_RESULT__ = function() {
-	            return Mousetrap;
-	        }.call(exports, __webpack_require__, exports, module), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-	    }
-	}) (typeof window !== 'undefined' ? window : null, typeof  window !== 'undefined' ? document : null);
-
-
-/***/ }),
-/* 222 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var object = __webpack_require__(203);
-	var util = __webpack_require__(83);
-	var Mousetrap = __webpack_require__(221);
-
-	/**
-	 * The mapInteractor class is responsible for handling raw events from the
-	 * browser and interpreting them as map navigation interactions.  This class
-	 * will call the navigation methods on the connected map, which will make
-	 * modifications to the camera directly.
-	 *
-	 * @class geo.mapInteractor
-	 * @extends geo.object
-	 * @returns {geo.mapInteractor}
-	 */
-	var mapInteractor = function (args) {
-	  'use strict';
-	  if (!(this instanceof mapInteractor)) {
-	    return new mapInteractor(args);
-	  }
-	  object.call(this);
-
-	  var $ = __webpack_require__(1);
-	  var geo_event = __webpack_require__(9);
-	  var geo_action = __webpack_require__(10);
-	  var throttle = __webpack_require__(83).throttle;
-	  var debounce = __webpack_require__(83).debounce;
-	  var actionMatch = __webpack_require__(83).actionMatch;
-	  var quadFeature = __webpack_require__(223);
-
-	  var m_options,
-	      m_this = this,
-	      m_mouse,
-	      m_keyHandler,
-	      m_boundKeys,
-	      m_touchHandler,
-	      m_state,
-	      m_queue,
-	      $node,
-	      m_selectionLayer = null,
-	      m_selectionQuad,
-	      m_paused = false,
-	      // if m_clickMaybe is not false, it contains the x, y, and buttons that
-	      // were present when the mouse down event occurred.
-	      m_clickMaybe = false,
-	      m_clickMaybeTimeout,
-	      m_callZoom = function () {};
-
-	  // Helper method to calculate the speed from a velocity
-	  function calcSpeed(v) {
-	    var x = v.x, y = v.y;
-	    return Math.sqrt(x * x + y * y);
-	  }
-
-	  // copy the options object with defaults
-	  m_options = $.extend(
-	    true,
-	    {},
-	    {
-	      throttle: 30,
-	      discreteZoom: false,
-
-	      /* There should only be one action with any specific combination of event
-	       * and modifiers.  When that event and modifiers occur, the specified
-	       * action is triggered.  The event and modifiers fields can either be a
-	       * simple string or an object with multiple entries with each entry set
-	       * to true, false, or undefined.  If an object, all values that are
-	       * truthy must match, all values that are false must not match, and all
-	       * other values that are falsy are ignored.
-	       *   Available actions:
-	       * see geo_action list
-	       *   Available events:
-	       * left, right, middle, wheel
-	       *   Available modifiers:
-	       * shift, ctrl, alt, meta
-	       *   Useful fields:
-	       * action: the name of the action.  Multiple events may trigger the same
-	       *    action.
-	       * input: the name of the input or an object with input names for keys
-	       *    and boolean values that indicates the combination of events that
-	       *    trigger this action.
-	       * modifiers: the name of a modifier or an object with modifier names for
-	       *    keys and boolean values that indicates the combination of modifiers
-	       *    that trigger this action.
-	       * selectionRectangle: truthy if a selection rectangle should be shown
-	       *    during the action.  This can be the name of an event that will be
-	       *    triggered when the selection is complete.
-	       * name: a string that can be used to reference this action.
-	       * owner: a string that can be used to reference this action.
-	       */
-	      actions: [{
-	        action: geo_action.pan,
-	        input: 'left',
-	        modifiers: {shift: false, ctrl: false},
-	        owner: 'geo.mapInteractor',
-	        name: 'button pan'
-	      }, {
-	        action: geo_action.zoom,
-	        input: 'right',
-	        modifiers: {shift: false, ctrl: false},
-	        owner: 'geo.mapInteractor',
-	        name: 'button zoom'
-	      }, {
-	        action: geo_action.zoom,
-	        input: 'wheel',
-	        modifiers: {shift: false, ctrl: false},
-	        owner: 'geo.mapInteractor',
-	        name: 'wheel zoom'
-	      }, {
-	        action: geo_action.rotate,
-	        input: 'left',
-	        modifiers: {shift: false, ctrl: true},
-	        owner: 'geo.mapInteractor',
-	        name: 'button rotate'
-	      }, {
-	        action: geo_action.rotate,
-	        input: 'wheel',
-	        modifiers: {shift: false, ctrl: true},
-	        owner: 'geo.mapInteractor',
-	        name: 'wheel rotate'
-	      }, {
-	        action: geo_action.select,
-	        input: 'left',
-	        modifiers: {shift: true, ctrl: true},
-	        selectionRectangle: geo_event.select,
-	        owner: 'geo.mapInteractor',
-	        name: 'drag select'
-	      }, {
-	        action: geo_action.zoomselect,
-	        input: 'left',
-	        modifiers: {shift: true, ctrl: false},
-	        selectionRectangle: geo_event.zoomselect,
-	        owner: 'geo.mapInteractor',
-	        name: 'drag zoom'
-	      }, {
-	        action: geo_action.unzoomselect,
-	        input: 'right',
-	        modifiers: {shift: true, ctrl: false},
-	        selectionRectangle: geo_event.unzoomselect,
-	        owner: 'geo.mapInteractor',
-	        name: 'drag unzoom'
-	      }, {
-	        action: geo_action.pan,
-	        input: 'pan',
-	        owner: 'geo.mapInteractor',
-	        name: 'touch pan'
-	      }, {
-	        action: geo_action.zoomrotate,
-	        input: 'rotate',
-	        owner: 'geo.mapInteractor',
-	        name: 'touch zoom and rotate'
-	      }],
-
-	      click: {
-	        enabled: true,
-	        buttons: {left: true, right: true, middle: true},
-	        duration: 0,
-	        cancelOnMove: true
-	      },
-
-	      keyboard: {
-	        actions: {
-	          /* Specific actions can be disabled by removing them from this object
-	           * or setting an empty list as the key bindings.  Additional actions
-	           * can be added to the dictionary, each of which gets a list of key
-	           * bindings.  See Mousetrap documentation for special key names. */
-	          'zoom.in': ['plus', 'shift+plus', 'shift+ctrl+plus', '=', 'shift+=', 'shift+ctrl+='],
-	          'zoom.out': ['-', 'shift+-', 'shift+ctrl+-', '_', 'shift+_', 'shift+ctrl+_'],
-	          'zoom.0': ['1'],
-	          'zoom.3': ['2'],
-	          'zoom.6': ['3'],
-	          'zoom.9': ['4'],
-	          'zoom.12': ['5'],
-	          'zoom.15': ['6'],
-	          'zoom.18': ['7'],
-	          'pan.left': ['left', 'shift+left', 'shift+ctrl+left'],
-	          'pan.right': ['right', 'shift+right', 'shift+ctrl+right'],
-	          'pan.up': ['up', 'shift+up', 'shift+ctrl+up'],
-	          'pan.down': ['down', 'shift+down', 'shift+ctrl+down'],
-	          'rotate.ccw': ['<', 'shift+<', 'shift+ctrl+<', '.', 'shift+.', 'shift+ctrl+.'],
-	          'rotate.cw': ['>', 'shift+>', 'shift+ctrl+>', ',', 'shift+,', 'shift+ctrl+,'],
-	          'rotate.0': ['0']
-	        },
-	        meta: {
-	          /* the metakeys that are down during a key event determine the
-	           * magnitude of the action, where 0 is the default small action
-	           * (1-pixel pan, small zoom, small rotation), 1 is a middle-sized
-	           * action, and 2 is the largest action.  Metakeys that aren't listed
-	           * are ignored.  Metakeys include shift, ctrl, alt, and meta (alt is
-	           * either the alt or option key, and meta is either windows or
-	           * command). */
-	          0: {shift: false, ctrl: false},
-	          1: {shift: true, ctrl: true},
-	          2: {shift: true, ctrl: false}
-	        },
-	        /* if focusHighlight is truthy, then a class is added to the map such
-	         * that when the map gets focus, it is indicated inside the border of
-	         * the map -- browsers usually show focus on the outside, which isn't
-	         * useful if the map is full window.  It might be desireable to change
-	         * this so it is only present if the focus is reached via the keyboard
-	         * (which would propably require detecting keyup events). */
-	        focusHighlight: true
-	      },
-	      /* Set alwaysTouch to false to only add touch support on devices that
-	       * report touch support.  Set to true to add touch support on all
-	       * devices. */
-	      alwaysTouch: false,
-	      wheelScaleX: 1,
-	      wheelScaleY: 1,
-	      zoomScale: 1,
-	      rotateWheelScale: 6 * Math.PI / 180,
-	      /* The minimum angle of rotation (in radians) before the
-	       * geo_action.zoomrotate action will allow rotation.  Set to 0 to always
-	       * include rotation. */
-	      zoomrotateMinimumRotation: 5.0 * Math.PI / 180,
-	      /* The minimum angle of rotation (in radians) before the
-	       * geo_action.zoomrotate action will reverse the rotation direction.
-	       * This helps reduce chatter when zooms and pans are combined with
-	       * rotations. */
-	      zoomrotateReverseRotation: 4.0 * Math.PI / 180,
-	      /* The minimum zoom factor change (increasing or descreasing) before the
-	       * geo_action.zoomrotate action will allow zoom.  Set to 0 to always
-	       * include zoom. */
-	      zoomrotateMinimumZoom: 0.05,
-	      /* The minimum number of pixels before the geo_action.zoomrotate action
-	       * will allow panning.  Set to 0 to always include panning. */
-	      zoomrotateMinimumPan: 5,
-	      /* The touch pan delay prevents a touch pan event from immediately
-	       * following a rotate (including zoom) event.  No touch pan event is
-	       * processed within this number of milliseconds of a non-pan touch
-	       * event. */
-	      touchPanDelay: 50,
-	      momentum: {
-	        enabled: true,
-	        maxSpeed: 2.5,
-	        minSpeed: 0.01,
-	        stopTime: 250,
-	        drag: 0.01,
-	        actions: [geo_action.pan, geo_action.zoom]
-	      },
-	      spring: {
-	        enabled: false,
-	        springConstant: 0.00005
-	      },
-	      zoomAnimation: {
-	        enabled: true,
-	        duration: 500,
-	        ease: function (t) { return (2 - t) * t; }
-	      }
-	    },
-	    args || {}
-	  );
-	  /* We don't want to merge the original arrays with arrays passed in the args,
-	   * so override that as necessary for actions. */
-	  if (args && args.actions) {
-	    m_options.actions = $.extend(true, [], args.actions);
-	  }
-	  if (args && args.momentum && args.momentum.actions) {
-	    m_options.momentum.actions = $.extend(true, [], args.momentum.actions);
-	  }
-	  if (args && args.keyboard && args.keyboard.actions !== undefined) {
-	    m_options.keyboard.actions = $.extend(true, {}, args.keyboard.actions);
-	  }
-
-	  /*
-	   * options supported:
-	   * {
-	   *    * throttle mouse events to at most this many milliseconds each (default 30)
-	   *   throttle: number
-	   *
-	   *    * Clamp zoom events to discrete (integer) zoom levels.  If a number is
-	   *    * provided then zoom events will be debounced (and accumulated)
-	   *    * with the given delay.  The default debounce interval is 400 ms.
-	   *   discreteZoom: boolean | number > 0
-	   *
-	   *    * A list of available actions.  See above
-	   *   actions: []
-	   *
-	   *    * wheel scale factor to change the magnitude of wheel interactions
-	   *   wheelScaleX: 1
-	   *   wheelScaleY: 1
-	   *
-	   *    * zoom scale factor to change the magnitude of zoom move interactions
-	   *   zoomScale: 1
-	   *
-	   *    * scale factor to change the magnitude of wheel rotation interactions
-	   *   rotateWheelScale: 1
-	   *
-	   *    * enable momentum when panning
-	   *   momentum: {
-	   *     enabled: true | false,
-	   *     maxSpeed: number, // don't allow animation to pan faster than this
-	   *     minSpeed: number, // stop animations if the speed is less than this
-	   *     stopTime: number, // if the mouse hasn't moved for this many
-	   *                        * milliseconds, don't apply momentum
-	   *     drag: number, // drag coefficient
-	   *     actions: [geo_action.pan, geo_action.zoom]
-	   *                                       * actions on which to apply momentum
-	   *   }
-	   *
-	   *    * enable spring clamping to screen edges to enforce clamping
-	   *   spring: {
-	   *     enabled: true | false,
-	   *     springConstant: number,
-	   *   }
-	   *
-	   *    * enable animation for both discrete and continuous zoom
-	   *   zoomAnimation: {
-	   *     enabled: true | false,
-	   *     duration: number,   * milliseconds
-	   *     ease: function      * easing function
-	   *   }
-	   *
-	   *    * enable the "click" event
-	   *    * A click will be registered when a mouse down is followed
-	   *    * by a mouse up in less than the given number of milliseconds
-	   *    * and the standard handler will *not* be called
-	   *    * If the duration is <= 0, then clicks will only be canceled by
-	   *    * a mousemove.
-	   *   click: {
-	   *     enabled: true | false,
-	   *     buttons: {left: true, right: true, middle: true}
-	   *     duration: 0,
-	   *     cancelOnMove: true // cancels click if the mouse is moved before release
-	   *   }
-	   * }
-	   */
-
-	  // default mouse object
-	  m_mouse = {
-	    page: { // mouse position relative to the page
-	      x: 0,
-	      y: 0
-	    },
-	    map: { // mouse position relative to the map
-	      x: 0,
-	      y: 0
-	    },
-	    // mouse button status
-	    buttons: {
-	      left: false,
-	      right: false,
-	      middle: false
-	    },
-	    // keyboard modifier status
-	    modifiers: {
-	      alt: false,
-	      ctrl: false,
-	      shift: false,
-	      meta: false
-	    },
-	    // time the event was captured
-	    time: new Date(),
-	    // time elapsed since the last mouse event
-	    deltaTime: 1,
-	    // pixels/ms
-	    velocity: {
-	      x: 0,
-	      y: 0
-	    }
-	  };
-
-	  /*
-	   * The interactor state determines what actions are taken in response to
-	   * core browser events.
-	   *
-	   * i.e.
-	   *  {
-	   *    'action': geo_action.pan,    * an ongoing pan event
-	   *    'origin': {...},       * mouse object at the start of the action
-	   *    'delta': {x: *, y: *} // mouse movement since action start
-	   *                           * not including the current event
-	   *  }
-	   *
-	   *  {
-	   *    'action': geo_action.zoom,   * an ongoing zoom event
-	   *    ...
-	   *  }
-	   *
-	   *  {
-	   *    'action': geo_action.rotate,   * an ongoing rotate event
-	   *    'origin': {...},       * mouse object at the start of the action
-	   *    'delta': {x: *, y: *} // mouse movement since action start
-	   *                           * not including the current event
-	   *  }
-	   *
-	   *  {
-	   *    'acton': geo_action.select,
-	   *    'origin': {...},
-	   *    'delta': {x: *, y: *}
-	   *  }
-	   *
-	   *  {
-	   *    'action': geo_action.momentum,
-	   *    'origin': {...},
-	   *    'handler': function () { }, // called in animation loop
-	   *    'timer': animate loop timer
-	   *  }
-	   */
-	  m_state = {};
-
-	  /**
-	   * Store queued map navigation commands (due to throttling) here
-	   * {
-	   *   kind: 'move' | 'wheel',  // what kind of mouse action triggered this
-	   *   method: function () {},  // the throttled method
-	   *   scroll: {x: ..., y: ...} // accumulated scroll wheel deltas
-	   * }
-	   */
-	  m_queue = {};
-
-	  /**
-	   * Process keys that we've captured.  Metakeys determine the magnitude of
-	   * the action.
-	   *
-	   * @param {string} action: the basic action to take.
-	   * @param {object} evt: the event with metakeys.
-	   * @param {object} keys: keys used to trigger the event.  keys.simualted is
-	   *    true if artificially triggered.
-	   */
-	  this._handleKeys = function (action, evt, keys) {
-	    if (keys && keys.simulated === true) {
-	      evt = keys;
-	    }
-	    var meta = m_options.keyboard.meta || {0: {}},
-	        map = m_this.map(),
-	        mapSize = map.size(),
-	        actionBase = action, actionValue = '',
-	        value, factor, move = {};
-
-	    for (value in meta) {
-	      if (meta.hasOwnProperty(value)) {
-	        if ((meta[value].shift === undefined || evt.shiftKey === !!meta[value].shift) &&
-	            (meta[value].ctrl === undefined || evt.ctrlKey === !!meta[value].ctrl) &&
-	            (meta[value].alt === undefined || evt.altKey === !!meta[value].alt) &&
-	            (meta[value].meta === undefined || evt.metaKey === !!meta[value].meta)) {
-	          factor = value;
-	        }
-	      }
-	    }
-	    if (factor === undefined) {
-	      /* metakeys don't match, so don't trigger an event. */
-	      return;
-	    }
-
-	    evt.stopPropagation();
-	    evt.preventDefault();
-
-	    if (action.indexOf('.') >= 0) {
-	      actionBase = action.substr(0, action.indexOf('.'));
-	      actionValue = action.substr(action.indexOf('.') + 1);
-	    }
-	    switch (actionBase) {
-	      case 'zoom':
-	        switch (actionValue) {
-	          case 'in':
-	            move.zoomDelta = [0.05, 0.25, 1][factor];
-	            break;
-	          case 'out':
-	            move.zoomDelta = -[0.05, 0.25, 1][factor];
-	            break;
-	          default:
-	            if (!isNaN(parseFloat(actionValue))) {
-	              move.zoom = parseFloat(actionValue);
-	            }
-	            break;
-	        }
-	        break;
-	      case 'pan':
-	        switch (actionValue) {
-	          case 'down':
-	            move.panY = -Math.max(1, [0, 0.05, 0.5][factor] * mapSize.height);
-	            break;
-	          case 'left':
-	            move.panX = Math.max(1, [0, 0.05, 0.5][factor] * mapSize.width);
-	            break;
-	          case 'right':
-	            move.panX = -Math.max(1, [0, 0.05, 0.5][factor] * mapSize.width);
-	            break;
-	          case 'up':
-	            move.panY = Math.max(1, [0, 0.05, 0.5][factor] * mapSize.height);
-	            break;
-	        }
-	        break;
-	      case 'rotate':
-	        switch (actionValue) {
-	          case 'ccw':
-	            move.rotationDelta = [1, 5, 90][factor] * Math.PI / 180;
-	            break;
-	          case 'cw':
-	            move.rotationDelta = -[1, 5, 90][factor] * Math.PI / 180;
-	            break;
-	          default:
-	            if (!isNaN(parseFloat(actionValue))) {
-	              move.rotation = parseFloat(actionValue);
-	            }
-	            break;
-	        }
-	        break;
-	    }
-	    map.geoTrigger(geo_event.keyaction, {
-	      move: move,
-	      action: action,
-	      factor: factor,
-	      event: evt
-	    });
-	    if (move.cancel) {
-	      return;
-	    }
-	    if (move.zoom !== undefined) {
-	      map.zoom(move.zoom);
-	    } else if (move.zoomDelta) {
-	      map.zoom(map.zoom() + move.zoomDelta);
-	    }
-	    if (move.rotation !== undefined) {
-	      map.rotation(move.rotation);
-	    } else if (move.rotationDelta) {
-	      map.rotation(map.rotation() + move.rotationDelta);
-	    }
-	    if (move.panX || move.panY) {
-	      map.pan({x: move.panX || 0, y: move.panY || 0});
-	    }
-	  };
-
-	  /**
-	   * Check if this browser has touch support.
-	   * Copied from https://github.com/hammerjs/touchemulator under the MIT
-	   * license.
-	   *
-	   * @returns {boolean}: true if there is touch support.
-	   */
-	  this.hasTouchSupport = function () {
-	    return ('ontouchstart' in window) || // touch events
-	           (window.Modernizr && window.Modernizr.touch) || // modernizr
-	           (navigator.msMaxTouchPoints || navigator.maxTouchPoints) > 1; // pointer events
-	  };
-
-	  /**
-	   * Handle touch events.
-	   *
-	   * @param {object} evt: the touch event.
-	   */
-	  this._handleTouch = function (evt) {
-	    var endIfBound = false;
-	    if (evt.pointerType === 'mouse' && m_touchHandler.touchSupport) {
-	      endIfBound = true;
-	    }
-	    if (evt.type === 'hammer.input') {
-	      if (m_touchHandler.lastEventType === 'pan' && evt.pointers.length !== 1) {
-	        endIfBound = true;
-	        m_touchHandler.lastEventType = null;
-	      } else {
-	        return;
-	      }
-	    }
-	    var evtType = /^(.*)(start|end|move)$/.exec(evt.type);
-	    if (!evtType || evtType.length !== 3) {
-	      endIfBound = true;
-	    }
-	    if (endIfBound) {
-	      if (m_state.boundDocumentHandlers && m_touchHandler.lastEvent) {
-	        m_this._handleMouseUpDocument(m_touchHandler.lastEvent);
-	      }
-	      return;
-	    }
-	    evt.which = evtType[1];
-	    var time = (new Date()).valueOf();
-	    if (evt.which === 'pan' && m_touchHandler.lastEventType !== 'pan' &&
-	        time - m_touchHandler.lastTime < m_options.touchPanDelay) {
-	      return;
-	    }
-	    m_touchHandler.lastTime = time;
-	    m_touchHandler.lastEventType = evt.which;
-	    m_touchHandler.lastEvent = evt;
-	    /* convert touch events to have page locations */
-	    if (evt.pageX === undefined && evt.center !== undefined && evt.center.x !== undefined) {
-	      evt.pageX = evt.center.x;
-	      evt.pageY = evt.center.y;
-	    }
-	    /* start events should occur *before* the triggering delta.  By using the
-	     * mouse handlers, we get all of the action properties we expect (and
-	     * actions can be changed or defined as we see fit). */
-	    if (evtType[2] === 'start') {
-	      m_this._handleMouseDown(evt);
-	      m_this._setClickMaybe(false);
-	      if (m_state.boundDocumentHandlers) {
-	        $(document).on('mousemove.geojs', m_this._handleMouseUpDocument);
-	      }
-	    }
-	    /* start and move events both trigger a movement */
-	    if (evtType[2] === 'start' || evtType[2] === 'move') {
-	      if (m_state.boundDocumentHandlers) {
-	        m_this._handleMouseMoveDocument(evt);
-	      } else {
-	        m_this._handleMouseMove(evt);
-	      }
-	    }
-	    if (evtType[2] === 'end' || evtType[2] === 'cancel') {
-	      if (m_state.boundDocumentHandlers) {
-	        m_this._handleMouseUpDocument(evt);
-	      } else {
-	        m_this._handleMouseUp(evt);
-	      }
-	      m_touchHandler.lastEvent = null;
-	    }
-	  };
-
-	  /**
-	   * Connects events to a map.  If the map is not set, then this does nothing.
-	   * @returns {geo.mapInteractor}
-	   */
-	  this._connectEvents = function () {
-	    if (!m_options.map) {
-	      return m_this;
-	    }
-
-	    // prevent double binding to dom elements
-	    m_this._disconnectEvents();
-
-	    // store the connected element
-	    $node = $(m_options.map.node());
-
-	    // set methods related to asyncronous event handling
-	    m_this._handleMouseWheel = throttled_wheel();
-	    m_callZoom = debounced_zoom();
-
-	    // catalog what inputs we are using
-	    util.adjustActions(m_options.actions);
-	    var usedInputs = {};
-	    ['right', 'pan', 'rotate'].forEach(function (input) {
-	      usedInputs[input] = m_options.actions.some(function (action) {
-	        return action.input[input];
-	      });
-	    });
-	    // add event handlers
-	    $node.on('wheel.geojs', m_this._handleMouseWheel);
-	    $node.on('mousemove.geojs', m_this._handleMouseMove);
-	    $node.on('mousedown.geojs', m_this._handleMouseDown);
-	    $node.on('mouseup.geojs', m_this._handleMouseUp);
-	    // Disable dragging images and such
-	    $node.on('dragstart', function () { return false; });
-	    if (usedInputs.right) {
-	      $node.on('contextmenu.geojs', function () { return false; });
-	    }
-
-	    // bind keyboard events
-	    if (m_options.keyboard && m_options.keyboard.actions) {
-	      m_keyHandler = Mousetrap($node[0]);
-	      var bound = [];
-	      for (var keyAction in m_options.keyboard.actions) {
-	        if (m_options.keyboard.actions.hasOwnProperty(keyAction)) {
-	          m_keyHandler.bind(
-	            m_options.keyboard.actions[keyAction],
-	            (function (action) {
-	              return function (evt, keys) {
-	                m_this._handleKeys(action, evt, keys);
-	              };
-	            })(keyAction)
-	          );
-	          bound = bound.concat(m_options.keyboard.actions[keyAction]);
-	        }
-	      }
-	      m_boundKeys = bound;
-	    }
-	    $node.toggleClass('highlight-focus',
-	      m_boundKeys && m_boundKeys.length && m_options.keyboard.focusHighlight);
-
-	    // bind touch events
-	    if ((m_this.hasTouchSupport() || m_options.alwaysTouch) &&
-	        (usedInputs.pan || usedInputs.rotate) &&
-	        __webpack_require__.m[/*require.resolve*/(224)]) { // eslint-disable-line
-	      var Hammer = __webpack_require__(224);
-	      if (Hammer !== undefined) {
-	        var recog = [],
-	            touchEvents = ['hammer.input'];
-	        if (usedInputs.rotate) {
-	          recog.push([Hammer.Rotate, {enable: true}]);
-	          touchEvents = touchEvents.concat(['rotatestart', 'rotateend', 'rotatemove']);
-	        }
-	        if (usedInputs.pan) {
-	          recog.push([Hammer.Pan, {direction: Hammer.DIRECTION_ALL}]);
-	          touchEvents = touchEvents.concat(['panstart', 'panend', 'panmove']);
-	        }
-	        var hammerParams = {recognizers: recog, preventDefault: true};
-	        m_touchHandler = {
-	          manager: new Hammer.Manager($node[0], hammerParams),
-	          touchSupport: m_this.hasTouchSupport(),
-	          lastTime: 0
-	        };
-	        touchEvents.forEach(function (touchEvent) {
-	          m_touchHandler.manager.on(touchEvent, m_this._handleTouch);
-	        });
-	      }
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Disconnects events to a map.  If the map is not set, then this does
-	   * nothing.
-	   * @returns {geo.mapInteractor}
-	   */
-	  this._disconnectEvents = function () {
-	    if (m_boundKeys) {
-	      if (m_keyHandler) {
-	        m_boundKeys.every(m_keyHandler.unbind, m_keyHandler);
-	      }
-	      m_boundKeys = null;
-	      m_keyHandler = null;
-	    }
-	    if (m_touchHandler) {
-	      m_touchHandler.manager.destroy();
-	      m_touchHandler = null;
-	    }
-	    if ($node) {
-	      $node.off('.geojs');
-	      $node = null;
-	    }
-	    m_this._handleMouseWheel = function () {};
-	    m_callZoom = function () {};
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Sets or gets map for this interactor, adds draw region layer if needed
-	   *
-	   * @param {geo.map} newMap optional
-	   * @returns {geo.interactorStyle|geo.map}
-	   */
-	  this.map = function (val) {
-	    if (val !== undefined) {
-	      m_options.map = val;
-	      m_this._connectEvents();
-	      return m_this;
-	    }
-	    return m_options.map;
-	  };
-
-	  /**
-	   * Gets/sets the options object for the interactor.
-	   *
-	   * @param {object} opts optional
-	   * @returns {geo.interactorStyle|object}
-	   */
-	  this.options = function (opts) {
-	    if (opts === undefined) {
-	      return $.extend({}, m_options);
-	    }
-	    $.extend(m_options, opts);
-
-	    // reset event handlers for new options
-	    this._connectEvents();
-	    return m_this;
-	  };
-
-	  /**
-	   * Stores the current mouse position from an event
-	   *
-	   * @param {jQuery.Event} evt JQuery event with the mouse position.
-	   */
-	  this._getMousePosition = function (evt) {
-	    var offset = $node.offset(), dt, t;
-
-	    t = (new Date()).valueOf();
-	    dt = t - m_mouse.time;
-	    m_mouse.time = t;
-	    m_mouse.deltaTime = dt;
-	    m_mouse.velocity = {
-	      x: (evt.pageX - m_mouse.page.x) / dt,
-	      y: (evt.pageY - m_mouse.page.y) / dt
-	    };
-	    m_mouse.page = {
-	      x: evt.pageX,
-	      y: evt.pageY
-	    };
-	    m_mouse.map = {
-	      x: evt.pageX - offset.left,
-	      y: evt.pageY - offset.top
-	    };
-	    try {
-	      m_mouse.geo = m_this.map().displayToGcs(m_mouse.map);
-	      m_mouse.mapgcs = m_this.map().displayToGcs(m_mouse.map, null);
-	    } catch (e) {
-	      // catch georeferencing problems and move on
-	      m_mouse.geo = m_mouse.mapgcs = null;
-	    }
-	  };
-
-	  /**
-	   * Stores the current mouse button
-	   */
-	  this._getMouseButton = function (evt) {
-	    for (var prop in m_mouse.buttons) {
-	      if (m_mouse.buttons.hasOwnProperty(prop)) {
-	        m_mouse.buttons[prop] = false;
-	      }
-	    }
-	    if (evt.type !== 'mouseup') {
-	      switch (evt.which) {
-	        case 1: m_mouse.buttons.left = true; break;
-	        case 2: m_mouse.buttons.middle = true; break;
-	        case 3: m_mouse.buttons.right = true; break;
-	        default:
-	          if (evt.which) {
-	            m_mouse.buttons[evt.which] = true;
-	          }
-	          break;
-	      }
-	    }
-	  };
-
-	  /**
-	   * Stores the current keyboard modifiers
-	   */
-	  this._getMouseModifiers = function (evt) {
-	    m_mouse.modifiers.alt = evt.altKey;
-	    m_mouse.modifiers.ctrl = evt.ctrlKey;
-	    m_mouse.modifiers.meta = evt.metaKey;
-	    m_mouse.modifiers.shift = evt.shiftKey;
-	  };
-
-	  /**
-	   * Compute a selection information object.
-	   *
-	   * @private
-	   * @returns {geo.brushSelection}
-	   */
-	  this._getSelection = function () {
-	    var origin = m_state.origin,
-	        mouse = m_this.mouse(),
-	        map = m_this.map(),
-	        display = {}, gcs = {};
-
-	    // TODO: clamp to map bounds
-	    // Get the display coordinates
-	    display.upperLeft = {
-	      x: Math.min(origin.map.x, mouse.map.x),
-	      y: Math.min(origin.map.y, mouse.map.y)
-	    };
-
-	    display.lowerRight = {
-	      x: Math.max(origin.map.x, mouse.map.x),
-	      y: Math.max(origin.map.y, mouse.map.y)
-	    };
-
-	    display.upperRight = {
-	      x: display.lowerRight.x,
-	      y: display.upperLeft.y
-	    };
-
-	    display.lowerLeft = {
-	      x: display.upperLeft.x,
-	      y: display.lowerRight.y
-	    };
-
-	    // Get the gcs coordinates
-	    gcs.upperLeft = map.displayToGcs(display.upperLeft, null);
-	    gcs.lowerRight = map.displayToGcs(display.lowerRight, null);
-	    gcs.upperRight = map.displayToGcs(display.upperRight, null);
-	    gcs.lowerLeft = map.displayToGcs(display.lowerLeft, null);
-
-	    m_selectionQuad.data([{
-	      ul: gcs.upperLeft,
-	      ur: gcs.upperRight,
-	      ll: gcs.lowerLeft,
-	      lr: gcs.lowerRight
-	    }]);
-	    m_selectionQuad.draw();
-
-	    return {
-	      display: display,
-	      gcs: gcs,
-	      mouse: mouse,
-	      origin: $.extend({}, m_state.origin)
-	    };
-	  };
-
-	  /**
-	   * Immediately cancel an ongoing action.
-	   *
-	   * @param {string?} action The action type, if null cancel any action
-	   * @param {bool} keepQueue If truthy, keep the queue event if an action is
-	   *                         canceled.
-	   * @returns {bool} If an action was canceled
-	   */
-	  this.cancel = function (action, keepQueue) {
-	    var out;
-	    if (!action) {
-	      out = !!m_state.action;
-	    } else {
-	      out = m_state.action === action;
-	    }
-	    if (out) {
-	      // cancel any queued interaction events
-	      if (!keepQueue) {
-	        m_queue = {};
-	      }
-	      clearState();
-	    }
-	    return out;
-	  };
-
-	  /**
-	   * Set the value of whether a click is possible.  Cancel any outstanding
-	   * timer for this process.
-	   */
-	  this._setClickMaybe = function (value) {
-	    m_clickMaybe = value;
-	    if (m_clickMaybeTimeout) {
-	      window.clearTimeout(m_clickMaybeTimeout);
-	      m_clickMaybeTimeout = null;
-	    }
-	  };
-
-	  /**
-	   * Handle event when a mouse button is pressed
-	   */
-	  this._handleMouseDown = function (evt) {
-	    var action, actionRecord;
-
-	    if (m_paused) {
-	      return;
-	    }
-
-	    m_this._getMousePosition(evt);
-	    m_this._getMouseButton(evt);
-	    m_this._getMouseModifiers(evt);
-
-	    if (m_options.click.enabled &&
-	        (!m_mouse.buttons.left || m_options.click.buttons.left) &&
-	        (!m_mouse.buttons.right || m_options.click.buttons.right) &&
-	        (!m_mouse.buttons.middle || m_options.click.buttons.middle)) {
-	      m_this._setClickMaybe({
-	        x: m_mouse.page.x,
-	        y: m_mouse.page.y,
-	        buttons: $.extend({}, m_mouse.buttons)
-	      });
-	      if (m_options.click.duration > 0) {
-	        m_clickMaybeTimeout = window.setTimeout(function () {
-	          m_clickMaybe = false;
-	          m_clickMaybeTimeout = null;
-	        }, m_options.click.duration);
-	      }
-	    }
-	    actionRecord = actionMatch(m_mouse.buttons, m_mouse.modifiers,
-	                               m_options.actions);
-	    action = (actionRecord || {}).action;
-
-	    var map = m_this.map();
-	    // cancel transitions and momentum on click
-	    map.transitionCancel('_handleMouseDown' + (action ? '.' + action : ''));
-	    m_this.cancel(geo_action.momentum);
-
-	    m_mouse.velocity = {
-	      x: 0,
-	      y: 0
-	    };
-
-	    if (action) {
-	      // cancel any ongoing interaction queue
-	      m_queue = {
-	        kind: 'move'
-	      };
-
-	      // store the state object
-	      m_state = {
-	        action: action,
-	        actionRecord: actionRecord,
-	        origin: $.extend(true, {}, m_mouse),
-	        initialZoom: map.zoom(),
-	        initialRotation: map.rotation(),
-	        initialEventRotation: evt.rotation,
-	        delta: {x: 0, y: 0}
-	      };
-
-	      if (actionRecord.selectionRectangle) {
-	        // Make sure the old selection layer is gone.
-	        if (m_selectionLayer) {
-	          m_selectionLayer.clear();
-	          map.deleteLayer(m_selectionLayer);
-	          m_selectionLayer = null;
-	        }
-	        m_selectionLayer = map.createLayer(
-	          'feature', {features: [quadFeature.capabilities.color]});
-	        m_selectionQuad = m_selectionLayer.createFeature(
-	          'quad', {gcs: map.gcs()});
-	        m_selectionQuad.style({
-	          opacity: 0.25,
-	          color: {r: 0.3, g: 0.3, b: 0.3}
-	        });
-	        map.geoTrigger(geo_event.brushstart, m_this._getSelection());
-	      }
-	      map.geoTrigger(geo_event.actiondown, {
-	        state: m_this.state(), mouse: m_this.mouse(), event: evt});
-
-	      // bind temporary handlers to document
-	      if (m_options.throttle > 0) {
-	        $(document).on(
-	          'mousemove.geojs',
-	          throttle(
-	            m_options.throttle,
-	            m_this._handleMouseMoveDocument
-	          )
-	        );
-	      } else {
-	        $(document).on('mousemove.geojs', m_this._handleMouseMoveDocument);
-	      }
-	      $(document).on('mouseup.geojs', m_this._handleMouseUpDocument);
-	      m_state.boundDocumentHandlers = true;
-	    }
-
-	  };
-
-	  /**
-	   * Handle mouse move event
-	   */
-	  this._handleMouseMove = function (evt) {
-	    if (m_paused) {
-	      return;
-	    }
-
-	    if (m_state.boundDocumentHandlers) {
-	      // If currently performing a navigation action, the mouse
-	      // coordinates will be captured by the document handler.
-	      return;
-	    }
-
-	    if (m_options.click.cancelOnMove && m_clickMaybe) {
-	      m_this._setClickMaybe(false);
-	    }
-
-	    m_this._getMousePosition(evt);
-	    m_this._getMouseButton(evt);
-	    m_this._getMouseModifiers(evt);
-
-	    if (m_clickMaybe) {
-	      return;
-	    }
-
-	    m_this.map().geoTrigger(geo_event.mousemove, m_this.mouse());
-	  };
-
-	  /**
-	   * Handle the zoomrotate action.
-	   *
-	   * @param {object} evt: the mouse event that triggered this.
-	   */
-	  this._handleZoomrotate = function (evt) {
-	    /* Only zoom if we have once exceeded the initial zoom threshold. */
-	    var deltaZoom = Math.log2(evt.scale);
-	    if (!m_state.zoomrotateAllowZoom && deltaZoom &&
-	        Math.abs(deltaZoom) >= Math.log2(1 + m_options.zoomrotateMinimumZoom)) {
-	      if (m_options.zoomrotateMinimumZoom) {
-	        m_state.initialZoom -= deltaZoom;
-	      }
-	      m_state.zoomrotateAllowZoom = true;
-	    }
-	    if (m_state.zoomrotateAllowZoom && deltaZoom) {
-	      var zoom = m_state.initialZoom + deltaZoom;
-	      m_this.map().zoom(zoom, m_state.origin);
-	    }
-	    /* Only rotate if we have once exceeded the initial rotation threshold.  The
-	     * first time this happens (if the threshold is greater than zero), set the
-	     * start of rotation to the current position, so that there is no sudden
-	     * jump. */
-	    var deltaTheta = (evt.rotation - m_state.initialEventRotation) * Math.PI / 180;
-	    if (!m_state.zoomrotateAllowRotation && deltaTheta &&
-	        Math.abs(deltaTheta) >= m_options.zoomrotateMinimumRotation) {
-	      if (m_options.zoomrotateMinimumRotation) {
-	        m_state.initialEventRotation = evt.rotation;
-	        deltaTheta = 0;
-	      }
-	      m_state.zoomrotateAllowRotation = true;
-	    }
-	    if (m_state.zoomrotateAllowRotation) {
-	      var theta = m_state.initialRotation + deltaTheta;
-	      /* Compute the delta in the range of [-PI, PI).  This is involed to work
-	       * around modulo returning a signed value. */
-	      deltaTheta = ((theta - m_this.map().rotation()) % (Math.PI * 2) +
-	                    Math.PI * 3) % (Math.PI * 2) - Math.PI;
-	      /* If we reverse direction, don't rotate until some threshold is
-	       * exceeded.  This helps prevent rotation bouncing while panning. */
-	      if (deltaTheta && (deltaTheta * (m_state.lastRotationDelta || 0) >= 0 ||
-	          Math.abs(deltaTheta) >= m_options.zoomrotateReverseRotation)) {
-	        m_this.map().rotation(theta, m_state.origin);
-	        m_state.lastRotationDelta = deltaTheta;
-	      }
-	    }
-	    /* Only pan if we have once exceed the initial pan threshold. */
-	    var panOrigin = m_state.origin.page;
-	    if (m_state.initialEventGeo) {
-	      var offset = $node.offset();
-	      panOrigin = m_this.map().gcsToDisplay(m_state.initialEventGeo);
-	      panOrigin.x += offset.left;
-	      panOrigin.y += offset.top;
-	    }
-	    var x = evt.pageX, deltaX = x - panOrigin.x,
-	        y = evt.pageY, deltaY = y - panOrigin.y,
-	        deltaPan2 = deltaX * deltaX + deltaY * deltaY;
-	    if (!m_state.zoomrotateAllowPan && deltaPan2 &&
-	        deltaPan2 >= m_options.zoomrotateMinimumPan * m_options.zoomrotateMinimumPan) {
-	      if (m_options.zoomrotateMinimumPan) {
-	        deltaX = deltaY = 0;
-	        m_state.initialEventGeo = m_this.mouse().geo;
-	      } else {
-	        m_state.initialEventGeo = m_state.origin.geo;
-	      }
-	      m_state.zoomrotateAllowPan = true;
-	    }
-	    if (m_state.zoomrotateAllowPan && (deltaX || deltaY)) {
-	      m_this.map().pan({x: deltaX, y: deltaY});
-	    }
-	  };
-
-	  /**
-	   * Handle mouse move event on the document (temporary bindings)
-	   */
-	  this._handleMouseMoveDocument = function (evt) {
-	    var dx, dy, selectionObj;
-
-	    // If the map has been disconnected, we do nothing.
-	    if (!m_this.map()) {
-	      return;
-	    }
-
-	    if (m_paused || m_queue.kind !== 'move') {
-	      return;
-	    }
-
-	    m_this._getMousePosition(evt);
-	    m_this._getMouseButton(evt);
-	    m_this._getMouseModifiers(evt);
-
-	    /* Only cancel possible clicks on move if we actually moved */
-	    if (m_options.click.cancelOnMove && (m_clickMaybe.x === undefined ||
-	        m_mouse.page.x !== m_clickMaybe.x ||
-	        m_mouse.page.y !== m_clickMaybe.y)) {
-	      m_this._setClickMaybe(false);
-	    }
-	    if (m_clickMaybe) {
-	      return;
-	    }
-
-	    if (!m_state.action) {
-	      // This shouldn't happen
-	      console.log('WARNING: Invalid state in mapInteractor.');
-	      return;
-	    }
-
-	    // calculate the delta from the origin point to avoid
-	    // accumulation of floating point errors
-	    dx = m_mouse.map.x - m_state.origin.map.x - m_state.delta.x;
-	    dy = m_mouse.map.y - m_state.origin.map.y - m_state.delta.y;
-	    m_state.delta.x += dx;
-	    m_state.delta.y += dy;
-
-	    if (m_state.action === geo_action.pan) {
-	      m_this.map().pan({x: dx, y: dy}, undefined, 'limited');
-	    } else if (m_state.action === geo_action.zoom) {
-	      m_callZoom(-dy * m_options.zoomScale / 120, m_state);
-	    } else if (m_state.action === geo_action.rotate) {
-	      var cx, cy;
-	      if (m_state.origin.rotation === undefined) {
-	        cx = m_state.origin.map.x - m_this.map().size().width / 2;
-	        cy = m_state.origin.map.y - m_this.map().size().height / 2;
-	        m_state.origin.rotation = m_this.map().rotation() - Math.atan2(cy, cx);
-	      }
-	      cx = m_mouse.map.x - m_this.map().size().width / 2;
-	      cy = m_mouse.map.y - m_this.map().size().height / 2;
-	      m_this.map().rotation(m_state.origin.rotation + Math.atan2(cy, cx));
-	    } else if (m_state.action === geo_action.zoomrotate) {
-	      m_this._handleZoomrotate(evt);
-	    } else if (m_state.actionRecord.selectionRectangle) {
-	      // Get the bounds of the current selection
-	      selectionObj = m_this._getSelection();
-	      m_this.map().geoTrigger(geo_event.brush, selectionObj);
-	    }
-	    m_this.map().geoTrigger(geo_event.actionmove, {
-	      state: m_this.state(), mouse: m_this.mouse(), event: evt});
-
-	    // Prevent default to stop text selection in particular
-	    evt.preventDefault();
-	  };
-
-	  /**
-	   * Clear the action state, but remember if we have bound document handlers.
-	   * @private
-	   */
-	  function clearState() {
-	    m_state = {boundDocumentHandlers: m_state.boundDocumentHandlers};
-	  }
-
-	  /**
-	   * Use interactor options to modify the mouse velocity by momentum
-	   * or spring equations depending on the current map state.
-	   * @private
-	   * @param {object} v Current velocity in pixels / ms
-	   * @param {number} deltaT The time delta
-	   * @returns {object} New velocity
-	   */
-	  function modifyVelocity(v, deltaT) {
-	    deltaT = deltaT <= 0 ? 30 : deltaT;
-	    var sf = springForce();
-	    var speed = calcSpeed(v);
-	    var vx = v.x / speed;
-	    var vy = v.y / speed;
-
-	    speed = speed * Math.exp(-m_options.momentum.drag * deltaT);
-
-	    // |force| + |velocity| < c <- stopping condition
-	    if (calcSpeed(sf) * deltaT + speed < m_options.momentum.minSpeed) {
-	      return null;
-	    }
-
-	    if (speed > 0) {
-	      vx = vx * speed;
-	      vy = vy * speed;
-	    } else {
-	      vx = 0;
-	      vy = 0;
-	    }
-
-	    return {
-	      x: vx - sf.x * deltaT,
-	      y: vy - sf.y * deltaT
-	    };
-	  }
-
-	  /**
-	   * Get the spring force for the current map bounds
-	   * @private
-	   * @returns {object} The spring force
-	   */
-	  function springForce() {
-	    var xplus,  // force to the right
-	        xminus, // force to the left
-	        yplus,  // force to the top
-	        yminus; // force to the bottom
-
-	    if (!m_options.spring.enabled) {
-	      return {x: 0, y: 0};
-	    }
-	    // get screen coordinates of corners
-	    var maxBounds = m_this.map().maxBounds(undefined, null);
-	    var ul = m_this.map().gcsToDisplay({
-	      x: maxBounds.left,
-	      y: maxBounds.top
-	    }, null);
-	    var lr = m_this.map().gcsToDisplay({
-	      x: maxBounds.right,
-	      y: maxBounds.bottom
-	    }, null);
-
-	    var c = m_options.spring.springConstant;
-	    // Arg... map needs to expose the canvas size
-	    var width = m_this.map().node().width();
-	    var height = m_this.map().node().height();
-
-	    xplus = c * Math.max(0, ul.x);
-	    xminus = c * Math.max(0, width - lr.x);
-	    yplus = c * Math.max(0, ul.y) / 2;
-	    yminus = c * Math.max(0, height - lr.y) / 2;
-
-	    return {
-	      x: xplus - xminus,
-	      y: yplus - yminus
-	    };
-	  }
-
-	  /**
-	   * Based on the screen coordinates of a selection, zoom or unzoom and
-	   * recenter.
-	   *
-	   * @private
-	   * @param {string} action Either geo_action.zoomselect or
-	   *    geo_action.unzoomselect.
-	   * @param {object} lowerLeft the x and y coordinates of the lower left corner
-	   *    of the zoom rectangle.
-	   * @param {object} upperRight the x and y coordinates of the upper right
-	   *    corner of the zoom rectangle.
-	   */
-	  this._zoomFromSelection = function (action, lowerLeft, upperRight) {
-	    if (action !== geo_action.zoomselect && action !== geo_action.unzoomselect) {
-	      return;
-	    }
-	    if (lowerLeft.x === upperRight.x || lowerLeft.y === upperRight.y) {
-	      return;
-	    }
-	    var zoom, center,
-	        map = m_this.map(),
-	        mapsize = map.size();
-	    /* To arbitrarily handle rotation and projection, we center the map at the
-	     * central coordinate of the selection and set the zoom level such that the
-	     * four corners are just barely on the map.  When unzooming (zooming out),
-	     * we ensure that the previous view is centered in the selection but use
-	     * the maximal size for the zoom factor. */
-	    var scaling = {
-	      x: Math.abs((upperRight.x - lowerLeft.x) / mapsize.width),
-	      y: Math.abs((upperRight.y - lowerLeft.y) / mapsize.height)
-	    };
-	    if (action === geo_action.zoomselect) {
-	      center = map.displayToGcs({
-	        x: (lowerLeft.x + upperRight.x) / 2,
-	        y: (lowerLeft.y + upperRight.y) / 2
-	      }, null);
-	      zoom = map.zoom() - Math.log2(Math.max(scaling.x, scaling.y));
-	    } else {  /* unzoom */
-	      /* To make the existing visible map entirely within the selection
-	       * rectangle, this would be changed to Math.min instead of Math.max of
-	       * the scaling factors.  This felt wrong, though. */
-	      zoom = map.zoom() + Math.log2(Math.max(scaling.x, scaling.y));
-	      /* Record the current center.  Later, this is panned to the center of the
-	       * selection rectangle. */
-	      center = map.center(undefined, null);
-	    }
-	    /* When discrete zoom is enable, always round down.  We have to do this
-	     * explicitly, as otherwise we may zoom too far and the selection will not
-	     * be completely visible. */
-	    if (map.discreteZoom()) {
-	      zoom = Math.floor(zoom);
-	    }
-	    map.zoom(zoom);
-	    if (action === geo_action.zoomselect) {
-	      map.center(center, null);
-	    } else {
-	      var newcenter = map.gcsToDisplay(center, null);
-	      map.pan({
-	        x: (lowerLeft.x + upperRight.x) / 2 - newcenter.x,
-	        y: (lowerLeft.y + upperRight.y) / 2 - newcenter.y
-	      });
-	    }
-	  };
-
-	  /**
-	   * Handle event when a mouse button is unpressed on the document.
-	   * Removes temporary bindings.
-	   */
-	  this._handleMouseUpDocument = function (evt) {
-	    var selectionObj, oldAction;
-
-	    if (m_paused) {
-	      return;
-	    }
-
-	    // cancel queued interactions
-	    m_queue = {};
-
-	    m_this._setClickMaybe(false);
-	    m_this._getMouseButton(evt);
-	    m_this._getMouseModifiers(evt);
-
-	    // unbind temporary handlers on document
-	    $(document).off('.geojs');
-	    m_state.boundDocumentHandlers = false;
-
-	    if (m_mouse.buttons.right) {
-	      evt.preventDefault();
-	    }
-
-	    if (m_state.actionRecord && m_state.actionRecord.selectionRectangle) {
-	      m_this._getMousePosition(evt);
-	      selectionObj = m_this._getSelection();
-
-	      m_selectionLayer.clear();
-	      m_this.map().deleteLayer(m_selectionLayer);
-	      m_selectionLayer = null;
-	      m_selectionQuad = null;
-
-	      m_this.map().geoTrigger(geo_event.brushend, selectionObj);
-	      if (m_state.actionRecord.selectionRectangle !== true) {
-	        m_this.map().geoTrigger(m_state.actionRecord.selectionRectangle,
-	                                selectionObj);
-	      }
-	      m_this._zoomFromSelection(m_state.action, selectionObj.display.lowerLeft,
-	                                selectionObj.display.upperRight);
-	      m_this.map().geoTrigger(geo_event.actionselection, {
-	        state: m_this.state(), mouse: m_this.mouse(), event: evt,
-	        lowerLeft: selectionObj.display.lowerLeft,
-	        upperRight: selectionObj.display.upperRight});
-	    }
-	    m_this.map().geoTrigger(geo_event.actionup, {
-	      state: m_this.state(), mouse: m_this.mouse(), event: evt});
-
-	    // reset the interactor state
-	    oldAction = m_state.action;
-	    clearState();
-
-	    // if momentum is enabled, start the action here
-	    if (m_options.momentum.enabled &&
-	            $.inArray(oldAction, m_options.momentum.actions) >= 0) {
-	      var t = (new Date()).valueOf();
-	      var dt = t - m_mouse.time + m_mouse.deltaTime;
-	      if (t - m_mouse.time < m_options.momentum.stopTime) {
-	        m_mouse.velocity.x *= m_mouse.deltaTime / dt;
-	        m_mouse.velocity.y *= m_mouse.deltaTime / dt;
-	        m_mouse.deltaTime = dt;
-	      } else {
-	        m_mouse.velocity.x = m_mouse.velocity.y = 0;
-	      }
-	      m_this.springBack(true, oldAction);
-	    }
-	  };
-
-	  /**
-	   * Handle event when a mouse button is unpressed
-	   */
-	  this._handleMouseUp = function (evt) {
-	    if (m_paused) {
-	      return;
-	    }
-
-	    m_this._getMouseButton(evt);
-
-	    if (m_clickMaybe) {
-	      m_this._handleMouseClick(evt);
-	    }
-	  };
-
-	  /**
-	   * Handle event when a mouse click is detected.  A mouse click is a simulated
-	   * event that occurs when the time between a mouse down and mouse up
-	   * is less than the configured duration and (optionally) if no mousemove
-	   * events were triggered in the interim.
-	   */
-	  this._handleMouseClick = function (evt) {
-
-	    /* Cancel a selection if it is occurring */
-	    if (m_state.actionRecord && m_state.actionRecord.selectionRectangle) {
-	      m_selectionLayer.clear();
-	      m_this.map().deleteLayer(m_selectionLayer);
-	      m_selectionLayer = null;
-	      m_selectionQuad = null;
-	      m_state.action = m_state.actionRecord = null;
-	    }
-	    m_this._getMouseButton(evt);
-	    m_this._getMouseModifiers(evt);
-
-	    // cancel any ongoing pan action
-	    m_this.cancel(geo_action.pan);
-
-	    // unbind temporary handlers on document
-	    $(document).off('.geojs');
-	    m_state.boundDocumentHandlers = false;
-	    // add information about the button state to the event information
-	    var details = m_this.mouse();
-	    details.buttonsDown = m_clickMaybe.buttons;
-
-	    // reset click detector variable
-	    m_this._setClickMaybe(false);
-	    // fire a click event
-	    m_this.map().geoTrigger(geo_event.mouseclick, details);
-	  };
-
-	  /**
-	   * Private wrapper around the map zoom method that is debounced to support
-	   * discrete zoom interactions.
-	   * @param {number} deltaZ The zoom increment
-	   */
-	  function debounced_zoom() {
-	    var deltaZ = 0, delay = 400, origin, startZoom, targetZoom;
-
-	    function accum(dz, org) {
-	      var map = m_this.map(), zoom;
-
-	      origin = $.extend(true, {}, org);
-	      deltaZ += dz;
-	      if (targetZoom === undefined) {
-	        startZoom = targetZoom = map.zoom();
-	      }
-	      targetZoom += dz;
-
-	      // Respond to debounced events when they add up to a change in the
-	      // discrete zoom level.
-	      if (map && Math.abs(deltaZ) >= 1 && m_options.discreteZoom &&
-	            !m_options.zoomAnimation.enabled) {
-
-	        zoom = Math.round(deltaZ + map.zoom());
-
-	        // delta is what is left over from the zoom delta after the new zoom
-	        // value
-	        deltaZ = deltaZ + map.zoom() - zoom;
-
-	        map.zoom(zoom, origin);
-	      }
-
-	    }
-
-	    function apply() {
-	      var map = m_this.map(), zoom;
-	      if (map) {
-	        if (m_options.zoomAnimation.enabled) {
-	          zoom = targetZoom;
-	          if (m_options.discreteZoom) {
-	            zoom = Math.round(zoom);
-	            if (zoom === startZoom && targetZoom !== startZoom) {
-	              zoom = startZoom + (targetZoom > startZoom ? 1 : -1);
-	            }
-	          }
-	          map.transitionCancel('debounced_zoom.' + geo_action.zoom);
-	          map.transition({
-	            zoom: zoom,
-	            zoomOrigin: origin,
-	            duration: m_options.zoomAnimation.duration,
-	            ease: m_options.zoomAnimation.ease,
-	            done: function (status) {
-	              status = status || {};
-	              var zoomRE = new RegExp('\\.' + geo_action.zoom + '$');
-	              if (!status.next && (!status.cancel ||
-	                  ('' + status.source).search(zoomRE) < 0)) {
-	                targetZoom = undefined;
-	              }
-	              /* If we were animating the zoom, if the zoom is continuous, just
-	               * stop where we are.  If using discrete zoom, we need to make
-	               * sure we end up discrete.  However, we don't want to do that if
-	               * the next action is further zooming. */
-	              if (m_options.discreteZoom && status.cancel &&
-	                  status.transition && status.transition.end &&
-	                  ('' + status.source).search(zoomRE) < 0) {
-	                map.zoom(status.transition.end.zoom,
-	                         status.transition.end.zoomOrigin);
-	              }
-	            }
-	          });
-	        } else {
-	          zoom = deltaZ + map.zoom();
-	          if (m_options.discreteZoom) {
-	            // round off the zoom to an integer and throw away the rest
-	            zoom = Math.round(zoom);
-	          }
-	          map.zoom(zoom, origin);
-	        }
-	      }
-	      deltaZ = 0;
-	    }
-
-	    if (m_options.discreteZoom !== true && m_options.discreteZoom > 0) {
-	      delay = m_options.discreteZoom;
-	    }
-	    if ((m_options.discreteZoom === true || m_options.discreteZoom > 0) &&
-	            !m_options.zoomAnimation.enabled) {
-	      return debounce(delay, false, apply, accum);
-	    } else {
-	      return function (dz, org) {
-	        if (!dz && targetZoom === undefined) {
-	          return;
-	        }
-	        accum(dz, org);
-	        apply(dz, org);
-	      };
-	    }
-	  }
-
-	  /**
-	   * Attaches wrapped methods for accumulating fast mouse wheel events and
-	   * throttling map interactions.
-	   * @private
-	   */
-	  function throttled_wheel() {
-	    var my_queue = {};
-
-	    function accum(evt) {
-	      var dx, dy;
-
-	      if (m_paused) {
-	        return;
-	      }
-
-	      if (my_queue !== m_queue) {
-	        my_queue = {
-	          kind: 'wheel',
-	          scroll: {x: 0, y: 0}
-	        };
-	        m_queue = my_queue;
-	      }
-
-	      evt.preventDefault();
-
-	      // try to normalize deltas using the wheel event standard:
-	      //   https://developer.mozilla.org/en-US/docs/Web/API/WheelEvent
-	      evt.deltaFactor = 1;
-	      if (evt.originalEvent.deltaMode === 1) {
-	        // DOM_DELTA_LINE -- estimate line height
-	        evt.deltaFactor = 40;
-	      } else if (evt.originalEvent.deltaMode === 2) {
-	        // DOM_DELTA_PAGE -- get window height
-	        evt.deltaFactor = $(window).height();
-	      }
-
-	      // prevent NaN's on legacy browsers
-	      dx = evt.originalEvent.deltaX || 0;
-	      dy = evt.originalEvent.deltaY || 0;
-
-	      // scale according to the options
-	      dx = dx * m_options.wheelScaleX * evt.deltaFactor / 120;
-	      dy = dy * m_options.wheelScaleY * evt.deltaFactor / 120;
-
-	      my_queue.scroll.x += dx;
-	      my_queue.scroll.y += dy;
-	    }
-
-	    function wheel(evt) {
-	      var zoomFactor, action, actionRecord;
-
-	      // If the current queue doesn't match the queue passed in as an argument,
-	      // assume it was cancelled and do nothing.
-	      if (my_queue !== m_queue) {
-	        return;
-	      }
-
-	      // perform the map navigation event
-	      m_this._getMouseModifiers(evt);
-
-	      actionRecord = actionMatch({wheel: true}, m_mouse.modifiers,
-	                                m_options.actions);
-	      action = (actionRecord || {}).action;
-
-	      if (action) {
-	        // if we were moving because of momentum or a transition, cancel it and
-	        // recompute where the mouse action is occurring.
-	        var recompute = m_this.map().transitionCancel('wheel.' + action);
-	        recompute |= m_this.cancel(geo_action.momentum, true);
-	        if (recompute) {
-	          m_mouse.geo = m_this.map().displayToGcs(m_mouse.map);
-	          m_mouse.mapgcs = m_this.map().displayToGcs(m_mouse.map, null);
-	        }
-	        switch (action) {
-	          case geo_action.pan:
-	            m_this.map().pan({
-	              x: m_queue.scroll.x,
-	              y: m_queue.scroll.y
-	            }, undefined, 'limited');
-	            break;
-	          case geo_action.zoom:
-	            zoomFactor = -m_queue.scroll.y;
-	            m_callZoom(zoomFactor, m_mouse);
-	            break;
-	          case geo_action.rotate:
-	            m_this.map().rotation(
-	                m_this.map().rotation() +
-	                m_queue.scroll.y * m_options.rotateWheelScale,
-	                m_mouse);
-	            break;
-	        }
-	        m_this.map().geoTrigger(geo_event.actionwheel, {
-	          state: m_this.state(), mouse: m_this.mouse(), event: evt});
-	      }
-
-	      // reset the queue
-	      m_queue = {};
-	    }
-
-	    if (m_options.throttle > 0) {
-	      return throttle(m_options.throttle, false, wheel, accum);
-	    } else {
-	      return function (evt) {
-	        accum(evt);
-	        wheel(evt);
-	      };
-	    }
-	  }
-
-	  /**
-	   * Handle mouse wheel event.  (Defined inside _connectEvents).
-	   */
-	  this._handleMouseWheel = function () {};
-
-	  /**
-	   * Start up a spring back action when the map bounds are out of range.
-	   * Not to be user callable.
-	   * @todo Move this and momentum handling to the map class
-	   * @protected
-	   *
-	   */
-	  this.springBack = function (initialVelocity, origAction) {
-	    if (m_state.action === geo_action.momentum) {
-	      return;
-	    }
-	    if (!initialVelocity) {
-	      m_mouse.velocity = {
-	        x: 0,
-	        y: 0
-	      };
-	    }
-	    m_state.origAction = origAction;
-	    m_state.action = geo_action.momentum;
-	    m_state.origin = m_this.mouse();
-	    m_state.momentum = m_this.mouse();
-	    m_state.start = new Date();
-	    m_state.handler = function () {
-	      var v, s, last, dt;
-
-	      if (m_state.action !== geo_action.momentum ||
-	          !m_this.map() ||
-	          m_this.map().transition()) {
-	        // cancel if a new action was performed
-	        return;
-	      }
-	      // Not sure the correct way to do this.  We need the delta t for the
-	      // next time step...  Maybe use a better interpolator and the time
-	      // parameter from requestAnimationFrame.
-	      dt = Math.min(m_state.momentum.deltaTime, 30);
-
-	      last = m_state.start.valueOf();
-	      m_state.start = new Date();
-
-	      v = modifyVelocity(m_state.momentum.velocity, m_state.start - last);
-
-	      // stop panning when the speed is below the threshold
-	      if (!v) {
-	        clearState();
-	        return;
-	      }
-
-	      s = calcSpeed(v);
-	      if (s > m_options.momentum.maxSpeed) {
-	        s = m_options.momentum.maxSpeed / s;
-	        v.x = v.x * s;
-	        v.y = v.y * s;
-	      }
-
-	      if (!isFinite(v.x) || !isFinite(v.y)) {
-	        v.x = 0;
-	        v.y = 0;
-	      }
-	      m_state.momentum.velocity.x = v.x;
-	      m_state.momentum.velocity.y = v.y;
-
-	      switch (m_state.origAction) {
-	        case geo_action.zoom:
-	          var dy = m_state.momentum.velocity.y * dt;
-	          m_callZoom(-dy * m_options.zoomScale / 120, m_state);
-	          break;
-	        default:
-	          m_this.map().pan({
-	            x: m_state.momentum.velocity.x * dt,
-	            y: m_state.momentum.velocity.y * dt
-	          }, undefined, 'limited');
-	          break;
-	      }
-
-	      if (m_state.handler) {
-	        m_this.map().scheduleAnimationFrame(m_state.handler);
-	      }
-	    };
-	    if (m_state.handler) {
-	      m_this.map().scheduleAnimationFrame(m_state.handler);
-	    }
-	  };
-
-	  /**
-	   * Handle double click event
-	   */
-	  this._handleDoubleClick = function () {
-	  };
-
-	  /**
-	   * Public method that unbinds all events
-	   */
-	  this.destroy = function () {
-	    m_this._disconnectEvents();
-	    if (m_this.map()) {
-	      $(m_this.map().node()).removeClass('highlight-focus');
-	    }
-	    m_this.map(null);
-	  };
-
-	  /**
-	   * Get current mouse information
-	   */
-	  this.mouse = function () {
-	    return $.extend(true, {}, m_mouse);
-	  };
-
-	  /**
-	   * Get/set current keyboard information
-	   */
-	  this.keyboard = function (newValue) {
-	    if (newValue === undefined) {
-	      return $.extend(true, {}, m_options.keyboard || {});
-	    }
-	    return m_this.options({keyboard: newValue});
-	  };
-
-	  /**
-	   * Get the current interactor state
-	   *
-	   * @returns {geo.interactorState}
-	   */
-	  this.state = function () {
-	    return $.extend(true, {}, m_state);
-	  };
-
-	  /**
-	   * Get or set the pause state of the interactor, which
-	   * ignores all native mouse and keyboard events.
-	   *
-	   * @param {bool} [value] The pause state to set or undefined to return the
-	   *                        current state.
-	   * @returns {bool|this}
-	   */
-	  this.pause = function (value) {
-	    if (value === undefined) {
-	      return m_paused;
-	    }
-	    m_paused = !!value;
-	    return m_this;
-	  };
-
-	  /**
-	   * Add an action to the list of handled actions.
-	   *
-	   * @param {object} action: an object defining the action.  This must have
-	   *    action and input properties, and may have modifiers, name, and owner.
-	   *    Use action, name, and owner to make this entry distinct if it will need
-	   *    to be removed later.
-	   * @param {boolean} toEnd: the action is added at the beginning of the
-	   *    actions list unless toEnd is true.  Earlier actions prevent later
-	   *    actions with the similar input and modifiers.
-	   */
-	  this.addAction = function (action, toEnd) {
-	    if (!action || !action.action || !action.input) {
-	      return;
-	    }
-	    util.addAction(m_options.actions, action, toEnd);
-	    if (m_options.map && m_options.actions.some(function (action) {
-	      return action.input.right;
-	    })) {
-	      $node.off('contextmenu.geojs');
-	      $node.on('contextmenu.geojs', function () { return false; });
-	    }
-	  };
-
-	  /**
-	   * Check if an action is in the actions list.  An action matches if the
-	   * action, name, and owner match.  A null or undefined value will match all
-	   * actions.  If using an action object, this is the same as passing
-	   * (action.action, action.name, action.owner).
-	   *
-	   * @param {object|string} action Either an action object or the name of an
-	   *    action.
-	   * @param {string} name Optional name associated with the action.
-	   * @param {string} owner Optional owner associated with the action.
-	   * @return action the first matching action or null.
-	   */
-	  this.hasAction = function (action, name, owner) {
-	    return util.hasAction(m_options.actions, action, name, owner);
-	  };
-
-	  /**
-	   * Remove all matching actions.  Actions are matched as with hasAction.
-	   *
-	   * @param {object|string} action Either an action object or the name of an
-	   *    action.
-	   * @param {string} name Optional name associated with the action.
-	   * @param {string} owner Optional owner associated with the action.
-	   * @return numRemoved the number of actions that were removed.
-	   */
-	  this.removeAction = function (action, name, owner) {
-	    var removed = util.removeAction(
-	        m_options.actions, action, name, owner);
-	    if (m_options.map && !m_options.actions.some(function (action) {
-	      return action.input.right;
-	    })) {
-	      $node.off('contextmenu.geojs');
-	    }
-	    return removed;
-	  };
-
-	  /**
-	   * Simulate a DOM mouse event on connected map.
-	   *
-	   * The options for creating the events are as follows, not all
-	   * options are required for every event type. ::
-	   *
-	   *   options = {
-	   *     page: {x, y} // position on the page
-	   *     map: {x, y}  // position on the map (overrides page)
-	   *     button: 'left' | 'right' | 'middle'
-	   *     modifiers: [ 'alt' | 'ctrl' | 'meta' | 'shift' ]
-	   *     wheelDelta: {x, y}
-	   *   }
-	   *
-	   * @param {string} type Event type 'mousemove', 'mousedown', 'mouseup', ...
-	   * @param {object} options
-	   * @returns {mapInteractor}
-	   */
-	  this.simulateEvent = function (type, options) {
-	    var evt, page, offset, which;
-
-	    if (!m_this.map()) {
-	      return m_this;
-	    }
-
-	    if (type === 'keyboard' && m_keyHandler) {
-	      /* Mousetrap passes through the keys we send, but not an event object,
-	       * so we construct an artificial event object as the keys, and use that.
-	       */
-	      var keys = {
-	        shiftKey: options.shift || options.shiftKey || false,
-	        ctrlKey: options.ctrl || options.ctrlKey || false,
-	        altKey: options.alt || options.altKey || false,
-	        metaKey: options.meta || options.metaKey || false,
-	        toString: function () { return options.keys; },
-	        stopPropagation: function () {},
-	        preventDefault: function () {},
-	        simulated: true
-	      };
-	      m_keyHandler.trigger(keys);
-	      return;
-	    }
-
-	    page = options.page || {};
-
-	    if (options.map) {
-	      offset = $node.offset();
-	      page.x = options.map.x + offset.left;
-	      page.y = options.map.y + offset.top;
-	    }
-
-	    if (options.button === 'left') {
-	      which = 1;
-	    } else if (options.button === 'right') {
-	      which = 3;
-	    } else if (options.button === 'middle') {
-	      which = 2;
-	    }
-
-	    options.modifiers = options.modifiers || [];
-	    options.wheelDelta = options.wheelDelta || {};
-
-	    evt = $.Event(
-	      type,
-	      {
-	        pageX: page.x,
-	        pageY: page.y,
-	        which: which,
-	        altKey: options.modifiers.indexOf('alt') >= 0,
-	        ctrlKey: options.modifiers.indexOf('ctrl') >= 0,
-	        metaKey: options.modifiers.indexOf('meta') >= 0,
-	        shiftKey: options.modifiers.indexOf('shift') >= 0,
-
-	        center: options.center,
-	        rotation: options.touch ? options.rotation || 0 : options.rotation,
-	        scale: options.touch ? options.scale || 1 : options.scale,
-	        pointers: options.pointers,
-	        pointerType: options.pointerType,
-
-	        originalEvent: {
-	          deltaX: options.wheelDelta.x,
-	          deltaY: options.wheelDelta.y,
-	          deltaMode: options.wheelMode,
-	          preventDefault: function () {},
-	          stopPropagation: function () {},
-	          stopImmediatePropagation: function () {}
-	        }
-	      }
-	    );
-	    if (options.touch && m_touchHandler) {
-	      m_this._handleTouch(evt);
-	    } else {
-	      $node.trigger(evt);
-	    }
-	    if (type.indexOf('.geojs') >= 0) {
-	      $(document).trigger(evt);
-	    }
-	  };
-	  this._connectEvents();
-	  return this;
-	};
-
-	inherit(mapInteractor, object);
-	module.exports = mapInteractor;
-
-
-/***/ }),
-/* 223 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class quadFeature
-	 *
-	 * @class geo.quadFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.feature
-	 * @param {Object|string|Function} [color] Color for quads without images.
-	 *   Default is white ({r: 1, g: 1, b: 1}).
-	 * @param {number|Function} [opacity=1] Opacity for quad
-	 * @param {number|Function} [depth=0] Default z-coordinate for positions that
-	 *   don't explicitly specify one.
-	 * @param {boolean|Function} [drawOnAsyncResourceLoaded=true] Redraw quads
-	 *   when images are loaded after initial render.
-	 * @param {Image|string|Function} [image] Image for each data item.  If
-	 *   undefined or null, the quad is a solid color.  Default is (data).image.
-	 * @param {Object|string|Function} [previewColor=null] If specified, a color to
-	 *   show on image quads while waiting for the image to load.
-	 * @param {Image|string|Function} [previewImage=null] If specified, an image to
-	 *   show on image quads while waiting for the quad-specific image to load.
-	 *   This will only be shown if it is already loaded.
-	 * @param {Object|Function} [position] Position of the quad.  Default is
-	 *   (data).  The position is an Object which specifies the corners of the
-	 *   quad: ll, lr, ur, ul.  At least two opposite corners must be specified.
-	 *   The corners do not have to physically correspond to the order specified,
-	 *   but rather correspond to that part of an image (if there is one).  If a
-	 *   corner is unspecified, it will use the x coordinate from one adjacent
-	 *   corner, the y coordinate from the other adjacent corner, and the average
-	 *   z value of those two corners.  For instance, if ul is unspecified, it is
-	 *   {x: ll.x, y: ur.y}.  Note that each quad is rendered as a pair of
-	 *   triangles: (ll, lr, ul) and (ur, ul, lr).  Nothing special is done for
-	 *   quads that are not convex or quads that have substantially different
-	 *   transformations for those two triangles.
-	 * @param {boolean} [cacheQuads=true] If true, a set of internal information is
-	 *   stored on each data item in the _cachedQuad attribute.  If this is false,
-	 *   the data item is not altered.  If the data (positions, opacity, etc,) of
-	 *   individual quads will change, set this to false or delete the _cachedQuad
-	 *   attribute of the data item.
-	 * @returns {geo.quadFeature}
-	 */
-	var quadFeature = function (arg) {
-	  'use strict';
-
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-
-	  if (!(this instanceof quadFeature)) {
-	    return new quadFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      m_cacheQuads,
-	      m_nextQuadId = 0,
-	      m_images = [],
-	      m_quads;
-
-	  /**
-	   * Track a list of object->object mappings.  The mappings are kept in a list.
-	   * This marks all known mappings as unused.  If they are not marked used
-	   * before _objectListEnd is called, that function will remove them.
-	   *
-	   * @param {array} list the list of mappings.
-	   */
-	  this._objectListStart = function (list) {
-	    $.each(list, function (idx, item) {
-	      item.used = false;
-	    });
-	  };
-
-	  /**
-	   * Get the value from a list of object->object mappings.  If the key object
-	   * is not present, return undefined.  If found, the entry is marked as being
-	   * in use.
-	   *
-	   * @param {array} list the list of mappings.
-	   * @param {object} entry the key to search for.
-	   * @returns {object} the associated object or undefined.
-	   */
-	  this._objectListGet = function (list, entry) {
-	    for (var i = 0; i < list.length; i += 1) {
-	      if (list[i].entry === entry) {
-	        list[i].used = true;
-	        return list[i].value;
-	      }
-	    }
-	    return undefined;
-	  };
-
-	  /**
-	   * Add a new object to a list of object->object mappings.  The key object
-	   * should not exist, or this will create a duplicate.  The new entry is
-	   * marked as being in use.
-	   *
-	   * @param {array} list the list of mappings.
-	   * @param {object} entry the key to add.
-	   * @param {object} value the value to store with the entry.
-	   */
-	  this._objectListAdd = function (list, entry, value) {
-	    list.push({entry: entry, value: value, used: true});
-	  };
-
-	  /**
-	   * Remove all unused entries from a list of object->object mappings.
-	   *
-	   * @param {array} list the list of mappings.
-	   */
-	  this._objectListEnd = function (list) {
-	    for (var i = list.length - 1; i >= 0; i -= 1) {
-	      if (!list[i].used) {
-	        list.splice(i, 1);
-	      }
-	    }
-	  };
-
-	  /**
-	   * Point search method for selection api.  Returns markers containing the
-	   * given point.
-	   *
-	   * @memberof geo.quadFeature
-	   * @param {Object} coordinate coordinate in input gcs to check if it is
-	   *    located in any quad.
-	   * @returns {Object} an object with 'index': a list of quad indices, and
-	   *    'found': a list of quads that contain the specified coordinate.
-	   */
-	  this.pointSearch = function (coordinate) {
-	    var found = [], indices = [], extra = {},
-	        poly1 = [{}, {}, {}, {}], poly2 = [{}, {}, {}, {}],
-	        order1 = [0, 1, 2, 0], order2 = [1, 2, 3, 1],
-	        data = m_this.data(),
-	        map = m_this.layer().map(),
-	        i, coordbasis;
-	    coordinate = transform.transformCoordinates(
-	        map.ingcs(), map.gcs(), coordinate);
-	    if (!m_quads) {
-	      this._generateQuads();
-	    }
-	    $.each([m_quads.clrQuads, m_quads.imgQuads], function (idx, quadList) {
-	      quadList.forEach(function (quad, idx) {
-	        for (i = 0; i < order1.length; i += 1) {
-	          poly1[i].x = quad.pos[order1[i] * 3];
-	          poly1[i].y = quad.pos[order1[i] * 3 + 1];
-	          poly1[i].z = quad.pos[order1[i] * 3 + 2];
-	          poly2[i].x = quad.pos[order2[i] * 3];
-	          poly2[i].y = quad.pos[order2[i] * 3 + 1];
-	          poly2[i].z = quad.pos[order2[i] * 3 + 2];
-	        }
-	        if (util.pointInPolygon(coordinate, poly1) ||
-	            util.pointInPolygon(coordinate, poly2)) {
-	          indices.push(quad.idx);
-	          found.push(data[quad.idx]);
-	          /* If a point is in the quad (based on pointInPolygon, above), check
-	           * where in the quad it is located.  We want to output coordinates
-	           * where the upper-left is (0, 0) and the lower-right is (1, 1). */
-	          coordbasis = util.pointTo2DTriangleBasis(
-	            coordinate, poly1[0], poly1[1], poly1[2]);
-	          if (!coordbasis || coordbasis.x + coordbasis.y > 1) {
-	            coordbasis = util.pointTo2DTriangleBasis(
-	              coordinate, poly2[2], poly2[1], poly2[0]);
-	            if (coordbasis) {
-	              /* In the second triangle, (0, 0) is upper-right, (1, 0) is
-	               * upper-left, and (0, 1) is lower-right.  Invert x to get to
-	               * the desired output coordinates. */
-	              coordbasis.x = 1 - coordbasis.x;
-	            }
-	          } else {
-	            /* In the first triangle, (0, 0) is lower-left, (1, 0) is lower-
-	             * right, and (0, 1) is upper-left.  Invert y to get to the
-	             * desired output coordinates. */
-	            coordbasis.y = 1 - coordbasis.y;
-	          }
-	          if (coordbasis) {
-	            extra[quad.idx] = {basis: coordbasis};
-	          }
-	        }
-	      });
-	    });
-	    return {
-	      index: indices,
-	      found: found,
-	      extra: extra
-	    };
-	  };
-
-	  /**
-	   * Get/Set position
-	   *
-	   * @memberof geo.quadFeature
-	   * @param {object|function} [position] object or function that returns the
-	   *    position of each quad.
-	   * @returns {geo.quadFeature}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else {
-	      m_this.style('position', util.ensureFunction(val));
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Given a data item and its index, fetch its position and ensure we have
-	   * complete information for the quad.  This generates missing corners and z
-	   * values.
-	   *
-	   * @param {function} posFunc a function to call to get the position of a data
-	   *   item.  It is passed (d, i).
-	   * @param {function} depthFunc a function to call to get the z-value of a
-	   *   data item.  It is passed (d, i).
-	   * @param d a data item.  Used to fetch position and possibly depth.
-	   * @param i the index within the data.  Used to fetch position and possibly
-	   *   depth.
-	   * @returns {Object|undefined} either an object with all four corners, or
-	   *   undefined if no such object can be generated.  The coordinates have been
-	   *   converted to map coordinates.
-	   */
-	  this._positionToQuad = function (posFunc, depthFunc, d, i) {
-	    var initPos = posFunc.call(m_this, d, i);
-	    if ((!initPos.ll || !initPos.ur) && (!initPos.ul || !initPos.lr)) {
-	      return;
-	    }
-	    var gcs = m_this.gcs(),
-	        map_gcs = m_this.layer().map().gcs(),
-	        pos = {};
-	    $.each(['ll', 'lr', 'ul', 'ur'], function (idx, key) {
-	      if (initPos[key] !== undefined) {
-	        pos[key] = {};
-	        if (initPos[key].x === undefined) {
-	          pos[key] = [initPos[key][0], initPos[key][1], initPos[key][2]];
-	        } else {
-	          pos[key] = [initPos[key].x, initPos[key].y, initPos[key].z];
-	        }
-	        if (pos[key][2] === undefined) {
-	          pos[key][2] = depthFunc.call(m_this, d, i);
-	        }
-	        if (gcs !== map_gcs && gcs !== false) {
-	          pos[key] = transform.transformCoordinates(
-	              gcs, map_gcs, pos[key]);
-	        }
-	      }
-	    });
-	    pos.ll = pos.ll || [pos.ul[0], pos.lr[1], (pos.ul[2] + pos.lr[2]) / 2];
-	    pos.lr = pos.lr || [pos.ur[0], pos.ll[1], (pos.ur[2] + pos.ll[2]) / 2];
-	    pos.ur = pos.ur || [pos.lr[0], pos.ul[1], (pos.lr[2] + pos.ul[2]) / 2];
-	    pos.ul = pos.ul || [pos.ll[0], pos.ur[1], (pos.ll[2] + pos.ur[2]) / 2];
-	    return pos;
-	  };
-
-	  /**
-	   * Convert the current data set to a pair of arrays, one of quads that are
-	   * solid color and one of quads that have an image.  All quads are objects
-	   * with pos (a 12 value array containing 4 three-dimensional position
-	   * coordinates), and opacity.  Color quads also have a color.  Image quads
-	   * may have an image element, if the image is loaded.  If it isn't, this
-	   * element will be missing.  For preview images, the image quad will have a
-	   * reference to the preview element that may later be removed.  If a preview
-	   * color is used, the quad will be in both lists, but may be removed from the
-	   * color quad list once the image is loaded.
-	   *
-	   * The value for origin is one of an ll corner from one of the quads with the
-	   * smallest sum of diagonals.  The assumption is that, if using the origin to
-	   * improve precision, the smallest quads are the ones most in need of this
-	   * benefit.
-	   *
-	   * @returns {Object} An object with clrQuads and imgQuads, each of which is
-	   *   an array, and origin, which is a triplet that is guaranteed to be one of
-	   *   the quads corners for a quad with the smallest sum of diagonal lengths.
-	   */
-	  this._generateQuads = function () {
-	    var posFunc = m_this.position(),
-	        imgFunc = util.ensureFunction(m_this.style('image')),
-	        colorFunc = util.ensureFunction(m_this.style('color')),
-	        depthFunc = util.ensureFunction(m_this.style('depth')),
-	        opacityFunc = util.ensureFunction(m_this.style('opacity')),
-	        loadedFunc = util.ensureFunction(m_this.style(
-	            'drawOnAsyncResourceLoaded')),
-	        previewColorFunc = util.ensureFunction(m_this.style(
-	            'previewColor')),
-	        previewImageFunc = util.ensureFunction(m_this.style(
-	            'previewImage')),
-	        data = m_this.data(),
-	        clrQuads = [], imgQuads = [],
-	        origin = [0, 0, 0], origindiag2, diag2;
-	    /* Keep track of images that we are using.  This prevents creating
-	     * additional Image elements for repeated urls. */
-	    m_this._objectListStart(m_images);
-	    $.each(data, function (i, d) {
-	      if (d._cachedQuad) {
-	        diag2 = d._cachedQuad.diag2;
-	        if (origindiag2 === undefined || (d._cachedQuad.diag2 &&
-	            d._cachedQuad.diag2 < origindiag2)) {
-	          origin = d._cachedQuad.ll;
-	          origindiag2 = d._cachedQuad.diag2;
-	        }
-	        if (d._cachedQuad.clrquad) {
-	          clrQuads.push(d._cachedQuad.clrquad);
-	        }
-	        if (d._cachedQuad.imgquad) {
-	          imgQuads.push(d._cachedQuad.imgquad);
-	        }
-	        return;
-	      }
-	      var quad, reload, image, prev_onload, prev_onerror,
-	          pos, img, opacity, previewColor, previewImage, quadinfo = {};
-
-	      pos = m_this._positionToQuad(posFunc, depthFunc, d, i);
-	      opacity = opacityFunc.call(m_this, d, i);
-	      if (pos === undefined || !opacity) {
-	        return;
-	      }
-	      diag2 = Math.pow(pos.ll[0] - pos.ur[0], 2) + Math.pow(pos.ll[1] -
-	          pos.ur[1], 2) + Math.pow(pos.ll[2] - pos.ur[0], 2) + Math.pow(
-	          pos.lr[0] - pos.ur[0], 2) + Math.pow(pos.lr[1] - pos.ur[1], 2) +
-	          Math.pow(pos.lr[2] - pos.ur[0], 2);
-	      quadinfo.diag2 = diag2;
-	      quadinfo.ll = pos.ll;
-	      if (origindiag2 === undefined || (diag2 && diag2 < origindiag2)) {
-	        origin = pos.ll;
-	        origindiag2 = diag2;
-	      }
-	      pos = [
-	        pos.ll[0], pos.ll[1], pos.ll[2],
-	        pos.lr[0], pos.lr[1], pos.lr[2],
-	        pos.ul[0], pos.ul[1], pos.ul[2],
-	        pos.ur[0], pos.ur[1], pos.ur[2]
-	      ];
-	      img = imgFunc.call(m_this, d, i);
-	      if (!img) {
-	        quad = {
-	          idx: i,
-	          pos: pos,
-	          opacity: opacity,
-	          color: util.convertColor(colorFunc.call(m_this, d, i))
-	        };
-	        if (d.reference) {
-	          quad.reference = d.reference;
-	        }
-	        clrQuads.push(quad);
-	        quadinfo.clrquad = quad;
-	      } else {
-	        image = m_this._objectListGet(m_images, img);
-	        if (image === undefined) {
-	          if (img instanceof Image || img instanceof HTMLCanvasElement) {
-	            image = img;
-	          } else {
-	            image = new Image();
-	            image.src = img;
-	          }
-	          m_this._objectListAdd(m_images, img, image);
-	        }
-	        quad = {
-	          idx: i,
-	          pos: pos,
-	          opacity: opacity
-	        };
-	        if (d.reference) {
-	          quad.reference = d.reference;
-	        }
-	        if (d.crop) {
-	          quad.crop = d.crop;
-	        }
-	        if (util.isReadyImage(image) || image instanceof HTMLCanvasElement) {
-	          quad.image = image;
-	        } else {
-	          previewColor = undefined;
-	          previewImage = previewImageFunc.call(m_this, d, i);
-	          if (previewImage && util.isReadyImage(previewImage)) {
-	            quad.image = previewImage;
-	          } else {
-	            previewColor = previewColorFunc.call(m_this, d, i);
-	            if (previewColor === null) {
-	              previewColor = undefined;
-	            }
-	            if (previewColor !== undefined) {
-	              quad.color = util.convertColor(previewColor);
-	              clrQuads.push(quad);
-	              quadinfo.keep = false;
-	            }
-	          }
-	          reload = loadedFunc.call(m_this, d, i);
-	          if (reload) {
-	            // add a promise to the layer if this image might complete
-	            var defer = util.isReadyImage(image, true) ? null : $.Deferred();
-	            prev_onload = image.onload;
-	            image.onload = function () {
-	              if (previewColor !== undefined) {
-	                if ($.inArray(quad, clrQuads) >= 0) {
-	                  clrQuads.splice($.inArray(quad, clrQuads), 1);
-	                }
-	              }
-	              quad.image = image;
-	              m_this.dataTime().modified();
-	              m_this.modified();
-	              m_this._update();
-	              m_this.layer().draw();
-	              if (defer) {
-	                defer.resolve();
-	              }
-	              if (prev_onload) {
-	                return prev_onload.apply(this, arguments);
-	              }
-	            };
-	            prev_onerror = image.onerror;
-	            image.onerror = function () {
-	              if (defer) {
-	                defer.reject();
-	              }
-	              if (prev_onerror) {
-	                return prev_onerror.apply(this, arguments);
-	              }
-	            };
-	            if (defer) {
-	              m_this.layer().addPromise(defer.promise());
-	            }
-	          } else if (previewColor === undefined && !quad.image) {
-	            return;
-	          }
-	        }
-	        imgQuads.push(quad);
-	        quadinfo.imgquad = quad;
-	      }
-	      if (m_cacheQuads !== false && quadinfo.keep !== false) {
-	        if (quadinfo.clrquad) {
-	          m_nextQuadId += 1;
-	          quadinfo.clrquad.quadId = m_nextQuadId;
-	        }
-	        if (quadinfo.imgquad) {
-	          m_nextQuadId += 1;
-	          quadinfo.imgquad.quadId = m_nextQuadId;
-	        }
-	        d._cachedQuad = quadinfo;
-	      }
-	    });
-	    m_this._objectListEnd(m_images);
-	    m_quads = {clrQuads: clrQuads, imgQuads: imgQuads, origin: origin};
-	    return m_quads;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    m_cacheQuads = (arg.cacheQuads !== false);
-
-	    var style = $.extend(
-	      {},
-	      {
-	        color: { r: 1.0, g: 1, b: 1 },
-	        opacity: 1,
-	        depth: 0,
-	        drawOnAsyncResourceLoaded: true,
-	        previewColor: null,
-	        previewImage: null,
-	        image: function (d) { return d.image; },
-	        position: function (d) { return d; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.position !== undefined) {
-	      style.position = util.ensureFunction(arg.position);
-	    }
-	    m_this.style(style);
-	    m_this.dataTime().modified();
-	  };
-
-	  return m_this;
-	};
-
-	/**
-	 * Object specification for a quad feature.
-	 *
-	 * @extends geo.feature.spec // need to make a jsdoc plugin for this to work
-	 * @typedef geo.quadFeature.spec
-	 * @type {object}
-	 */
-
-	/**
-	 * Create a quadFeature from an object.
-	 *
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.quadFeature.spec} spec The object specification
-	 * @returns {geo.quadFeature|null}
-	 */
-	quadFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'quad';
-	  return feature.create(layer, spec);
-	};
-
-	quadFeature.capabilities = {
-	  /* support for solid-colored quads */
-	  color: 'quad.color',
-	  /* support for parallelogram images */
-	  image: 'quad.image',
-	  /* support for cropping quad images */
-	  imageCrop: 'quad.imageCrop',
-	  /* support for fixed-scale quad images */
-	  imageFixedScale: 'quad.imageFixedScale',
-	  /* support for arbitrary quad images */
-	  imageFull: 'quad.imageFull',
-	  /* support for canvas elements as content in image quads */
-	  canvas: 'quad.canvas'
-	};
-
-	inherit(quadFeature, feature);
-	module.exports = quadFeature;
-
-
-/***/ }),
-/* 224 */
-/***/ (function(module, exports) {
-
-	module.exports = __WEBPACK_EXTERNAL_MODULE_224__;
-
-/***/ }),
-/* 225 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class choroplethFeature
-	 *
-	 * @class geo.choroplethFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.feature
-	 * @param {Array} [colorRange] Color lookup table for
-	 *   choroplethFeature. Default is 9-step color table.
-	 * @param {Function} [scale] A scale converts a input domain into the
-	 *   the colorRange. Default is d3.scale.quantize.
-	 * @param {Object} [accessor] A accessor defines three functions; Retrieve
-	 *   geoId from geometry feature and scalarId and scalarValue from scalarData. By
-	 *   default geoId uses GEO_ID key in the geometry feature property,
-	 *   scalarId uses id key and scalarValue uses value from a object within
-	 *   the scalar array.
-	 * @param {Object|Function} [scalar] A scalar is a array of objects with keys id
-	 *   that maps scalar value to the geometry and value of the scalar.
-	 *   Multiple values mapped to the same id are aggregated by the aggregator.
-	 * @param {Object|Function} [choropleth] Defines accessor for choropleth. It
-	 *   provides an API to replace or add attributes to the choropleth.
-	 * @param {Object|Function} [choropleth.get] A uniform getter that
-	 *   always returns a function even for constant values.
-	 *   If undefined input, return all the choropleth values as an object.
-	 * @returns {geo.choroplethFeature}
-	 */
-	var choroplethFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof choroplethFeature)) {
-	    return new choroplethFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var ensureFunction = __webpack_require__(83).ensureFunction;
-
-	  /**
-	   * @private
-	   */
-	  var d3 = __webpack_require__(226),
-	      m_this = this,
-	      s_init = this._init,
-	      m_choropleth = $.extend({},
-	        {
-	          colorRange: [
-	                {r: 0.07514311, g: 0.468049805, b: 1},
-	                {r: 0.468487184, g: 0.588057293, b: 1},
-	                {r: 0.656658579, g: 0.707001303, b: 1},
-	                {r: 0.821573924, g: 0.837809045, b: 1},
-	                {r: 0.943467973, g: 0.943498599, b: 0.943398095},
-	                {r: 1, g: 0.788626485, b: 0.750707739},
-	                {r: 1, g: 0.6289553, b: 0.568237474},
-	                {r: 1, g: 0.472800903, b: 0.404551679},
-	                {r: 0.916482116, g: 0.236630659, b: 0.209939162}
-	          ],
-	          scale: d3.scale.quantize(),
-	          accessors: {
-	            //accessor for ID on geodata feature
-	            geoId: function (geoFeature) {
-	              return geoFeature.properties.GEO_ID;
-	            },
-	            //accessor for ID on scalar element
-	            scalarId: function (scalarElement) {
-	              return scalarElement.id;
-	            },
-	            //accessor for value on scalar element
-	            scalarValue: function (scalarElement) {
-	              return scalarElement.value;
-	            }
-	          }
-	        },
-	        arg.choropleth);
-
-	  /**
-	   * Get/Set choropleth scalar data
-	   *
-	   * @memberof geo.choroplethFeature
-	   * @param {Array} [data] Scalar data is an array of objects in which each
-	   *   object provides an id and a value for that id. The id uniquely identifies
-	   *   the geometry this scalar is associated with.
-	   * @param {Function} [aggregator] The aggregator aggregates the scalar in case
-	   *   there are multiple values are found with the same id. The default
-	   *   is d3.mean.
-	   * @returns {geo.feature.choropleth}
-	   */
-	  this.scalar = function (data, aggregator) {
-	    var scalarId, scalarValue;
-
-	    if (data === undefined) {
-	      return m_this.choropleth.get('scalar')() || [];
-	    } else {
-	      scalarId = m_this.choropleth.get('accessors')().scalarId;
-	      scalarValue = m_this.choropleth.get('accessors')().scalarValue;
-	      m_choropleth.scalar = data;
-	      m_choropleth.scalarAggregator = aggregator || d3.mean;
-	      // we make internal dictionary from array for faster lookup
-	      // when matching geojson features to scalar values,
-	      // note that we also allow for multiple scalar elements
-	      // for the same geo feature
-	      m_choropleth.scalar._dictionary = data
-	        .reduce(function (accumeDictionary, scalarElement) {
-	          var id, value;
-
-	          id = scalarId(scalarElement);
-	          value = scalarValue(scalarElement);
-
-	          accumeDictionary[id] =
-	            accumeDictionary[id] ?
-	            accumeDictionary[id].push(value) : [value];
-
-	          return accumeDictionary;
-	        }, {});
-	      m_this.dataTime().modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set choropleth accessor
-	   *
-	   * @memberof geo.choroplethFeature
-	   * @param {Object|String} [arg1] The first argument is the key for a
-	   *   attributes of the choropleth. If the argument is a string and the second
-	   *   argument is undefined, the value of the key is returned. If the arg1 is
-	   *   an object and the second argument is undefined, choropleth attributes
-	   *   are extended by that object. If arg1 is an object and arg2 is defined,
-	   *   a new key-value pair is then added to the choropleth as an attribute.
-	   * @param {Object|String} [arg2] arg2 defines the value of the key (arg1).
-	   * @returns {geo.feature.choropleth}
-	   */
-	  this.choropleth = function (arg1, arg2) {
-	    var choropleth;
-
-	    if (arg1 === undefined) {
-	      return m_choropleth;
-	    }
-	    if (typeof arg1 === 'string' && arg2 === undefined) {
-	      return m_choropleth[arg1];
-	    }
-	    if (arg2 === undefined) {
-	      choropleth = $.extend(
-	        {},
-	        m_choropleth,
-	        arg1
-	      );
-	      m_choropleth = choropleth;
-	    } else {
-	      m_choropleth[arg1] = arg2; //if you pass in accessor for prop
-	    }
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set choropleth getter
-	   *
-	   * @memberof geo.choroplethFeature
-	   * A uniform getter that always returns a function even for constant values.
-	   * If undefined input, return all the choropleth values as an object.
-	   *
-	   * @param {string|undefined} key defines one of the attributes of a
-	   *  choropleth.
-	   * @return {function}
-	   */
-	  this.choropleth.get = function (key) {
-	    var all = {}, k;
-	    if (key === undefined) {
-	      for (k in m_choropleth) {
-	        if (m_choropleth.hasOwnProperty(k)) {
-	          all[k] = m_this.choropleth.get(k);
-	        }
-	      }
-	      return all;
-	    }
-	    return ensureFunction(m_choropleth[key]);
-	  };
-
-	  /**
-	   * A method that adds a polygon feature to the current layer.
-	   *
-	   * @param {array} coordinateArray
-	   * @param {geo.color} fillColor
-	   * @return {geo.feature}
-	   */
-	  this._addPolygonFeature = function (feature, fillColor) {
-	    var newFeature = m_this.layer()
-	        .createFeature('polygon', {});
-
-	    if (feature.geometry.type === 'Polygon') {
-	      newFeature.data([{
-	        type: 'Polygon',
-	        coordinates: feature.geometry.coordinates
-	      }]);
-	    } else if (feature.geometry.type === 'MultiPolygon') {
-	      newFeature.data(feature.geometry.coordinates.map(function (coordinateMap) {
-	        return {
-	          type: 'Polygon',
-	          coordinates: coordinateMap
-	        };
-	      }));
-	    }
-
-	    newFeature
-	      .polygon(function (d) {
-	        return {
-	          'outer': d.coordinates[0],
-	          'inner': d.coordinates[1] // undefined but ok
-	        };
-	      })
-	      .position(function (d) {
-	        return {
-	          x: d[0],
-	          y: d[1]
-	        };
-	      })
-	      .style({
-	        'fillColor': fillColor
-	      });
-
-	    return newFeature;
-	  };
-
-	  /**
-	   * A method that adds polygons from a given feature to the current layer.
-	   *
-	   * @param {} geoJsonFeature
-	   * @param geo.color
-	   * @return [{geo.feature}]
-	   */
-	  this._featureToPolygons = function (feature, fillValue) {
-	    return m_this
-	      ._addPolygonFeature(feature, fillValue);
-	  };
-
-	  /**
-	   * A method that sets a choropleth scale's domain and range.
-	   *
-	   * @param {undefined | function({})} valueAccessor
-	   * @return {geo.feature.choropleth}
-	   */
-	  this._generateScale = function (valueAccessor) {
-	    var extent =
-	        d3.extent(m_this.scalar(), valueAccessor || undefined);
-
-	    m_this.choropleth()
-	      .scale
-	      .domain(extent)
-	      .range(m_this.choropleth().colorRange);
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Generate scale for choropleth.data(), make polygons from features.
-	   * @returns: [ [geo.feature.polygon, ...] , ... ]
-	   */
-	  this.createChoropleth = function () {
-	    var choropleth = m_this.choropleth,
-	        data = m_this.data(),
-	        scalars = m_this.scalar(),
-	        valueFunc = choropleth.get('accessors')().scalarValue,
-	        getFeatureId = choropleth.get('accessors')().geoId;
-
-	    m_this._generateScale(valueFunc);
-
-	    return data
-	      .map(function (feature) {
-	        var id = getFeatureId(feature);
-	        var valueArray = scalars._dictionary[id];
-	        var accumulatedScalarValue = choropleth().scalarAggregator(valueArray);
-	        // take average of this array of values
-	        // which allows for non-bijective correspondence
-	        // between geo data and scalar data
-	        var fillColor =
-	            m_this
-	            .choropleth()
-	            .scale(accumulatedScalarValue);
-
-	        return m_this
-	          ._featureToPolygons(feature, fillColor);
-	      });
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    if (m_choropleth) {
-	      m_this.dataTime().modified();
-	    }
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(choroplethFeature, feature);
-	module.exports = choroplethFeature;
-
-
-/***/ }),
-/* 226 */
-/***/ (function(module, exports) {
-
-	module.exports = __WEBPACK_EXTERNAL_MODULE_226__;
-
-/***/ }),
-/* 227 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Contour feature specification.
-	 *
-	 * @typedef {geo.feature.spec} geo.contourFeature.spec
-	 * @property {object[]} [data=[]] An array of arbitrary objects used to
-	 *  construct the feature.
-	 * @property {object} [style] An object that contains style values for the
-	 *      feature.
-	 * @property {function|number} [style.opacity=1] The opacity on a scale of 0 to
-	 *      1.
-	 * @property {function|geo.geoPosition} [style.position=data] The position of
-	 *      each data element.  This defaults to just using `x`, `y`, and `z`
-	 *      properties of the data element itself.  The position is in the
-	 *      feature's gcs coordinates.
-	 * @property {function|number} [style.value=data.z] The contour value of each
-	 *      data element.  This defaults `z` properties of the data element.  If
-	 *      the value of a grid point is `null` or `undefined`, that point will not
-	 *      be included in the contour display.  Since the values are on a grid, if
-	 *      this point is in the interior of the grid, this can remove up to four
-	 *      squares.
-	 * @property {geo.contourFeature.contourSpec} [contour] The contour
-	 *      specification for the feature.
-	 */
-
-	/**
-	 * Contour specification.
-	 *
-	 * @typedef {object} geo.contourFeature.contourSpec
-	 * @property {function|number} [gridWidth] The number of data columns in the
-	 *      grid.  If this is not specified and `gridHeight` is given, this is the
-	 *      number of data elements divided by `gridHeight`.  If neither
-	 *      `gridWidth` not `gridHeight` are specified,  the square root of the
-	 *      number of data elements is used.  If both are specified, some data
-	 *      could be unused.
-	 * @property {function|number} [gridHeight] The number of data rows in the
-	 *      grid.  If this is not specified and `gridWidth` is given, this is the
-	 *      number of data elements divided by `gridWidth`.  If neither
-	 *      `gridWidth` not `gridHeight` are specified,  the square root of the
-	 *      number of data elements is used.  If both are specified, some data
-	 *      could be unused.
-	 * @property {function|number} [x0] The x coordinate of the 0th point in the
-	 *      `value` array.  If `null` or `undefined`, the coordinate is taken from
-	 *      the `position` style.
-	 * @property {function|number} [y0] The y coordinate of the 0th point in the
-	 *      `value` array.  If `null` or `undefined`, the coordinate is taken from
-	 *      the `position` style.
-	 * @property {function|number} [dx] The distance in the x direction between the
-	 *      0th and 1st point in the `value` array.  This may be positive or
-	 *      negative.  If 0, `null`, or `undefined`, the coordinate is taken from
-	 *      the `position` style.
-	 * @property {function|number} [dy] The distance in the y direction between the
-	 *      0th and `gridWidth`th point in the `value` array.  This may be positive
-	 *      or negative.  If 0, `null`, or `undefined`, the coordinate is taken
-	 *      from the `position` style.
-	 * @property {function|boolean} [wrapLongitude] If truthy and `position` is not
-	 *      used (`x0`, `y0`, `dx`, and `dy` are all set appropriately), assume the
-	 *      x coordinates is longitude and should be adjusted to be within -180 to
-	 *      180.  If the data spans 180 degrees, the points or squares that
-	 *      straddle the meridian will be duplicated to ensure that
-	 *      the map is covered from -180 to 180 as appropriate.  Set this to
-	 *      `false` if using a non-longitude x coordinate.  This is ignored if
-	 *      `position` is used.
-	 * @property {function|number} [min] Minimum contour value.  If unspecified,
-	 *      taken from the computed minimum of the `value` style.
-	 * @property {function|number} [max] Maximum contour value.  If unspecified,
-	 *      taken from the computed maxi,um of the `value` style.
-	 * @property {function|geo.geoColor} [minColor='black'] Color used for any
-	 *      value below the minimum.
-	 * @property {function|number} [minOpacity=0] Opacity used for any value below
-	 *      the minimum.
-	 * @property {function|geo.geoColor} [maxColor='black'] Color used for any
-	 *      value above the maximum.
-	 * @property {function|number} [maxOpacity=0] Opacity used for any value above
-	 *      the maximum.
-	 * @property {function|boolean} [stepped] If falsy but not `undefined`, smooth
-	 *      transitions between colors.
-	 * @property {function|geo.geoColor[]} [colorRange=<color table>] An array of
-	 *      colors used to show the range of values.  The default is a 9-step color
-	 *      table.
-	 * @property {function|number[]} [opacityRange] An array of opacities used to
-	 *      show the range of values.  If unspecified, the opacity is 1.  If this
-	 *      is a shorter list than the `colorRange`, an opacity of 1 is used for
-	 *      the entries near the end of the color range.
-	 * @property {function|number[]} [rangeValues] An array used to map values to
-	 *      the `colorRange`.  By default, values are spaced linearly.  If
-	 *      specified, the entries must be increasing weakly monotonic, and there
-	 *      must be one more entry then the length of `colorRange`.
-	 */
-
-	/**
-	 * Computed contour information.
-	 *
-	 * @typedef {object} geo.contourFeature.contourInfo
-	 * @property {number[]} elements An array of 0-based indices into the values
-	 *    array.  Each set of the three values forms a triangle that should be
-	 *    rendered.  If no contour data can be used, this will be a zero-length
-	 *    array and other properties may not be set.
-	 * @property {number[]} pos An flat array of coordinates for the vertices in
-	 *    the triangular mesh.  The array is in the order x0, y0, z0, x1, y1, z1,
-	 *    x2, ..., and is always three times as long as the number of vertices.
-	 * @property {number[]} value An array of values that have been normalized to a
-	 *    range of [0, steps].  There is one value per vertex.
-	 * @property {number[]} opacity An array of opacities per vertex.
-	 * @property {number} minValue the minimum value used for the contour.  If
-	 *    `rangeValues` was specified, this is the first entry of that array.
-	 * @property {number} maxValue the maximum value used for the contour.  If
-	 *    `rangeValues` was specified, this is the last entry of that array.
-	 * @property {number} factor If linear value scaling is used, this is the
-	 *    number of color values divided by the difference between the maximum and
-	 *    minimum values.  It is ignored if non-linear value scaling is used.
-	 * @property {geo.geoColorObject} minColor The color used for values below
-	 *    minValue.  Includes opacity.
-	 * @property {geo.geoColorObject} maxColor The color used for values above
-	 *    maxValue.  Includes opacity.
-	 * @property {geo.geoColorObject[]} colorMap The specified `colorRange` and
-	 *    `opacityRange` converted into objects that include opacity.
-	 */
-
-	/**
-	 * Create a new instance of class contourFeature.
-	 *
-	 * @class
-	 * @alias geo.contourFeature
-	 * @extends geo.feature
-	 *
-	 * @param {geo.contourFeature.spec} arg
-	 * @returns {geo.contourFeature}
-	 */
-	var contourFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof contourFeature)) {
-	    return new contourFeature(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-	  var util = __webpack_require__(83);
-
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_contour = {},
-	      s_init = this._init;
-
-	  if (arg.contour === undefined) {
-	    m_contour = function (d) {
-	      return d;
-	    };
-	  } else {
-	    m_contour = arg.contour;
-	  }
-
-	  /**
-	   * Get/Set contour accessor.
-	   *
-	   * @param {string|geo.contourFeature.contourSpec} [specOrProperty] If
-	   *    `undefined`, return the current contour specification.  If a string is
-	   *    specified, either get or set the named contour property.  If an object
-	   *    is given, set or update the contour specification with the specified
-	   *    parameters.
-	   * @param {object} [value] If `specOrProperty` is a string, set that property
-	   *    to `value`.  If `undefined`, return the current value of the named
-	   *    property.
-	   * @returns {geo.contourFeature.contourSpec|object|this} The current contour
-	   *    specification, the value of a named contour property, or this contour
-	   *    feature.
-	   */
-	  this.contour = function (specOrProperty, value) {
-	    if (specOrProperty === undefined) {
-	      return m_contour;
-	    }
-	    if (typeof specOrProperty === 'string' && value === undefined) {
-	      return m_contour[specOrProperty];
-	    }
-	    if (value === undefined) {
-	      var contour = $.extend(
-	        {},
-	        {
-	          gridWidth: function () {
-	            if (specOrProperty.gridHeight) {
-	              return Math.floor(m_this.data().length / specOrProperty.gridHeight);
-	            }
-	            return Math.floor(Math.sqrt(m_this.data().length));
-	          },
-	          gridHeight: function () {
-	            if (specOrProperty.gridWidth) {
-	              return Math.floor(m_this.data().length / specOrProperty.gridWidth);
-	            }
-	            return Math.floor(Math.sqrt(m_this.data().length));
-	          },
-	          minColor: 'black',
-	          minOpacity: 0,
-	          maxColor: 'black',
-	          maxOpacity: 0,
-	          /* 9-step based on paraview bwr colortable */
-	          colorRange: [
-	            {r: 0.07514311, g: 0.468049805, b: 1},
-	            {r: 0.468487184, g: 0.588057293, b: 1},
-	            {r: 0.656658579, g: 0.707001303, b: 1},
-	            {r: 0.821573924, g: 0.837809045, b: 1},
-	            {r: 0.943467973, g: 0.943498599, b: 0.943398095},
-	            {r: 1, g: 0.788626485, b: 0.750707739},
-	            {r: 1, g: 0.6289553, b: 0.568237474},
-	            {r: 1, g: 0.472800903, b: 0.404551679},
-	            {r: 0.916482116, g: 0.236630659, b: 0.209939162}
-	          ]
-	        },
-	        m_contour,
-	        specOrProperty
-	      );
-	      m_contour = contour;
-	    } else {
-	      m_contour[specOrProperty] = value;
-	    }
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * A uniform getter that always returns a function even for constant values.
-	   * If undefined input, return all the contour values as an object.
-	   *
-	   * @param {string|undefined} key The name of the contour key or `undefined`
-	   *    to return an object with all keys as functions.
-	   * @returns {function|object} A function related to the key, or an object
-	   *    with all contour keys, each of which is a function.
-	   */
-	  this.contour.get = function (key) {
-	    if (key === undefined) {
-	      var all = {}, k;
-	      for (k in m_contour) {
-	        if (m_contour.hasOwnProperty(k)) {
-	          all[k] = m_this.contour.get(k);
-	        }
-	      }
-	      return all;
-	    }
-	    return util.ensureFunction(m_contour[key]);
-	  };
-
-	  /**
-	   * Get/Set position accessor.  This is identical to getting or setting the
-	   * `position` style.
-	   *
-	   * @param {function|array} [val] If specified, set the position style.  If
-	   *    `undefined`, return the current value.
-	   * @returns {function|array|this} Either the position style or this.
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else {
-	      m_this.style('position', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Create a set of vertices, values at the vertices, and opacities at the
-	   * vertices.  Create a set of triangles of indices into the vertex array.
-	   * Create a color and opacity map corresponding to the values.
-	   *
-	   * @returns {geo.contourFeature.contourInfo} An object with the contour
-	   *    information.
-	   */
-	  this.createContours = function () {
-	    var i, i3, j, idx, k, val, numPts, usedPts = 0, usePos, item,
-	        idxMap = {},
-	        minval, maxval, range,
-	        contour = m_this.contour,
-	        data = m_this.data(),
-	        posFunc = m_this.position(), posVal,
-	        gridW = contour.get('gridWidth')(),
-	        gridH = contour.get('gridHeight')(),
-	        x0 = contour.get('x0')(),
-	        y0 = contour.get('y0')(),
-	        dx = contour.get('dx')(),
-	        dy = contour.get('dy')(),
-	        opacityFunc = m_this.style.get('opacity'),
-	        opacityRange = contour.get('opacityRange')(),
-	        rangeValues = contour.get('rangeValues')(),
-	        valueFunc = m_this.style.get('value'), values = [],
-	        stepped = contour.get('stepped')(),
-	        wrapLong = contour.get('wrapLongitude')(),
-	        calcX, skipColumn, x, origI, /* used for wrapping */
-	        gridWorig = gridW,  /* can be different when wrapping */
-	        result = {
-	          minValue: contour.get('min')(),
-	          maxValue: contour.get('max')(),
-	          stepped: stepped === undefined || stepped ? true : false,
-	          wrapLongitude: wrapLong === undefined || wrapLong ? true : false,
-	          colorMap: [],
-	          elements: []
-	        };
-	    /* Create the min/max colors and the color array */
-	    result.minColor = $.extend({a: contour.get('minOpacity')() || 0},
-	        util.convertColor(contour.get('minColor')()));
-	    result.maxColor = $.extend({a: contour.get('maxOpacity')() || 0},
-	        util.convertColor(contour.get('maxColor')()));
-	    contour.get('colorRange')().forEach(function (clr, idx) {
-	      result.colorMap.push($.extend({
-	        a: opacityRange && opacityRange[idx] !== undefined ? opacityRange[idx] : 1
-	      }, util.convertColor(clr)));
-	    });
-	    /* Determine which values are usable */
-	    if (gridW * gridH > data.length) {
-	      gridH = Math.floor(data.length) / gridW;
-	    }
-	    /* If we are not using the position values (we are using x0, y0, dx, dy),
-	     * and wrapLongitude is turned on, and the position spans 180 degrees,
-	     * duplicate one or two columns of points at opposite ends of the map. */
-	    usePos = (x0 === null || x0 === undefined || y0 === null ||
-	        y0 === undefined || !dx || !dy);
-	    if (!usePos && result.wrapLongitude && (x0 < -180 || x0 > 180 ||
-	        x0 + dx * (gridW - 1) < -180 || x0 + dx * (gridW - 1) > 180) &&
-	        dx > -180 && dx < 180) {
-	      calcX = [];
-	      for (i = 0; i < gridW; i += 1) {
-	        x = x0 + i * dx;
-	        while (x < -180) { x += 360; }
-	        while (x > 180) { x -= 360; }
-	        if (i && Math.abs(x - calcX[calcX.length - 1]) > 180) {
-	          if (x > calcX[calcX.length - 1]) {
-	            calcX.push(x - 360);
-	            calcX.push(calcX[calcX.length - 2] + 360);
-	          } else {
-	            calcX.push(x + 360);
-	            calcX.push(calcX[calcX.length - 2] - 360);
-	          }
-	          skipColumn = i;
-	        }
-	        calcX.push(x);
-	      }
-	      gridW += 2;
-	      if (Math.abs(Math.abs(gridWorig * dx) - 360) < 0.01) {
-	        gridW += 1;
-	        x = x0 + gridWorig * dx;
-	        while (x < -180) { x += 360; }
-	        while (x > 180) { x -= 360; }
-	        calcX.push(x);
-	      }
-	    }
-	    /* Calculate the value for point */
-	    numPts = gridW * gridH;
-	    for (i = 0; i < numPts; i += 1) {
-	      if (skipColumn === undefined) {
-	        val = parseFloat(valueFunc(data[i], i));
-	      } else {
-	        j = Math.floor(i / gridW);
-	        origI = i - j * gridW;
-	        origI += (origI > skipColumn ? -2 : 0);
-	        if (origI >= gridWorig) {
-	          origI -= gridWorig;
-	        }
-	        origI += j * gridWorig;
-	        val = parseFloat(valueFunc(data[origI], origI));
-	      }
-	      values[i] = isNaN(val) ? null : val;
-	      if (values[i] !== null) {
-	        idxMap[i] = usedPts;
-	        usedPts += 1;
-	        if (minval === undefined) {
-	          minval = maxval = values[i];
-	        }
-	        if (values[i] < minval) {
-	          minval = values[i];
-	        }
-	        if (values[i] > maxval) {
-	          maxval = values[i];
-	        }
-	      }
-	    }
-	    if (!usedPts) {
-	      return result;
-	    }
-	    if (!$.isNumeric(result.minValue)) {
-	      result.minValue = minval;
-	    }
-	    if (!$.isNumeric(result.maxValue)) {
-	      result.maxValue = maxval;
-	    }
-	    if (!rangeValues || rangeValues.length !== result.colorMap.length + 1) {
-	      rangeValues = null;
-	    }
-	    if (rangeValues) {  /* ensure increasing monotonicity */
-	      for (k = 1; k < rangeValues.length; k += 1) {
-	        if (rangeValues[k] > rangeValues[k + 1]) {
-	          rangeValues = null;
-	          break;
-	        }
-	      }
-	    }
-	    if (rangeValues) {
-	      result.minValue = rangeValues[0];
-	      result.maxValue = rangeValues[rangeValues.length - 1];
-	    }
-	    range = result.maxValue - result.minValue;
-	    if (!range) {
-	      result.colorMap = result.colorMap.slice(0, 1);
-	      range = 1;
-	      rangeValues = null;
-	    }
-	    result.rangeValues = rangeValues;
-	    result.factor = result.colorMap.length / range;
-	    /* Create triangles */
-	    for (j = idx = 0; j < gridH - 1; j += 1, idx += 1) {
-	      for (i = 0; i < gridW - 1; i += 1, idx += 1) {
-	        if (values[idx] !== null && values[idx + 1] !== null &&
-	            values[idx + gridW] !== null &&
-	            values[idx + gridW + 1] !== null && i !== skipColumn) {
-	          result.elements.push(idxMap[idx]);
-	          result.elements.push(idxMap[idx + 1]);
-	          result.elements.push(idxMap[idx + gridW]);
-	          result.elements.push(idxMap[idx + gridW + 1]);
-	          result.elements.push(idxMap[idx + gridW]);
-	          result.elements.push(idxMap[idx + 1]);
-	        }
-	      }
-	    }
-	    /* Only locate the points that are in use. */
-	    result.pos = new Array(usedPts * 3);
-	    result.value = new Array(usedPts);
-	    result.opacity = new Array(usedPts);
-	    for (j = i = i3 = 0; j < numPts; j += 1) {
-	      val = values[j];
-	      if (val !== null) {
-	        item = data[j];
-	        if (usePos) {
-	          posVal = posFunc(item);
-	          result.pos[i3] = posVal.x;
-	          result.pos[i3 + 1] = posVal.y;
-	          result.pos[i3 + 2] = posVal.z || 0;
-	        } else {
-	          if (skipColumn === undefined) {
-	            result.pos[i3] = x0 + dx * (j % gridW);
-	          } else {
-	            result.pos[i3] = calcX[j % gridW];
-	          }
-	          result.pos[i3 + 1] = y0 + dy * Math.floor(j / gridW);
-	          result.pos[i3 + 2] = 0;
-	        }
-	        result.opacity[i] = opacityFunc(item, j);
-	        if (rangeValues && val >= result.minValue && val <= result.maxValue) {
-	          for (k = 1; k < rangeValues.length; k += 1) {
-	            if (val <= rangeValues[k]) {
-	              result.value[i] = k - 1 + (val - rangeValues[k - 1]) /
-	                  (rangeValues[k] - rangeValues[k - 1]);
-	              break;
-	            }
-	          }
-	        } else {
-	          result.value[i] = (val - result.minValue) * result.factor;
-	        }
-	        i += 1;
-	        i3 += 3;
-	      }
-	    }
-	    return result;
-	  };
-
-	  /**
-	   * Initialize.
-	   *
-	   * @param {geo.contourFeature.spec} arg The contour feature specification.
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        opacity: 1.0,
-	        position: function (d) {
-	          /* We could construct a new object and return
-	           *  {x: d.x, y: d.y, z: d.z};
-	           * but that isn't necessary. */
-	          return d;
-	        },
-	        value: function (d) {
-	          return m_this.position()(d).z;
-	        }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    m_this.style(defaultStyle);
-
-	    if (m_contour) {
-	      m_this.dataTime().modified();
-	    }
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(contourFeature, feature);
-	module.exports = contourFeature;
-
-	/* Example:
-
-	layer.createFeature('contour', {
-	})
-	.data(<array with w x h elements>)
-	.position(function (d) {
-	  return { x: <longitude>, y: <latitude>, z: <altitude>};
-	})
-	.style({
-	  opacity: function (d) {
-	    return <opacity of grid point>;
-	  },
-	  value: function (d) {            // defaults to position().z
-	    return <contour value>;
-	  }
-	})
-	.contour({
-	  gridWidth: <width of grid>,
-	  gridHeight: <height of grid>,
-	  x0: <the x coordinate of the 0th point in the value array>,
-	  y0: <the y coordinate of the 0th point in the value array>,
-	  dx: <the distance in the x direction between the 0th and 1st point in the
-	    value array>,
-	  dy: <the distance in the y direction between the 0th and (gridWidth)th point
-	    in the value array>,
-	  wrapLongitude: <boolean (default true).  If true, AND the position array is
-	    not used, assume the x coordinates is longitude and should be adjusted to
-	    be within -180 to 180.  If the data spans 180 degrees, the points or
-	    squares will be duplicated to ensure that the map is covered from -180 to
-	    180 as appropriate.  Set this to false if using a non longitude x
-	    coordinate.  This is ignored if the position array is used.>,
-	  min: <optional minimum contour value, otherwise taken from style.value>,
-	  max: <optional maximum contour value, otherwise taken from style.value>,
-	  minColor: <color for any value below the minimum>,
-	  minOpacity: <opacity for any value below the minimum>,
-	  maxColor: <color for any value above the maximum>,
-	  maxOpacity: <opacity for any value above the maximum>,
-	  stepped: <boolean (default true).  If false, smooth transitions between
-	    colors>,
-	  colorRange: [<array of colors used for the contour>],
-	  opacityRange: [<optional array of opacities used for the contour, expected to
-	    be the same length as colorRange>],
-	  rangeValues: [<if specified, instead of spacing the colors linearly, use this
-	    spacing.  Must be increasing monotonic and one value longer than the length
-	    of colorRange>]
-	})
-	 */
-
-
-/***/ }),
-/* 228 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var renderer = __webpack_require__(202);
-	var registerRenderer = __webpack_require__(201).registerRenderer;
-
-	/**
-	 * @class geo.domRenderer
-	 * @extends geo.renderer
-	 */
-	var domRenderer = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof domRenderer)) {
-	    return new domRenderer(arg);
-	  }
-	  renderer.call(this, arg);
-
-	  arg = arg || {};
-
-	  var m_this = this;
-
-	  this.api = function () {
-	    return 'dom';
-	  };
-
-	  this._init = function () {
-	    var layer = m_this.layer().node();
-
-	    if (!m_this.canvas() && layer && layer.length) {
-	      // The renderer and the UI Layer share the same canvas
-	      // at least for now. This renderer is essentially a noop renderer
-	      // designed for backwards compatibility
-	      m_this.canvas(layer[0]);
-	    }
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(domRenderer, renderer);
-	registerRenderer('dom', domRenderer);
-	module.exports = domRenderer;
-
-
-/***/ }),
-/* 229 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = (function () {
-	  'use strict';
-
-	  var $ = __webpack_require__(1);
-
-	  /**
-	   * This class implements a queue for Deferred objects.  Whenever one of the
-	   * objects in the queue completes (resolved or rejected), another item in the
-	   * queue is processed.  The number of concurrently processing items can be
-	   * adjusted.  At this time (2015-12-29) most major browsers support 6
-	   * concurrent requests from any given server, so, when using the queue for
-	   * tile images, thie number of concurrent requests should be 6 * (number of
-	   * subdomains serving tiles).
-	   *
-	   * @class geo.fetchQueue
-	   *
-	   * @param {Object?} [options] A configuration object for the queue
-	   * @param {Number} [options.size=6] The maximum number of concurrent deferred
-	   *    objects.
-	   * @param {Number} [options.track=600] The number of objects that are tracked
-	   *    that trigger checking if any of them have been abandoned.  The fetch
-	   *    queue can grow to the greater of this size and the number of items that
-	   *    are still needed.  Setting this to a low number will increase
-	   *    processing time, to a high number can increase memory.  Ideally, it
-	   *    should reflect the number of items that are kept in memory elsewhere.
-	   *    If needed is null, this is ignored.
-	   * @param {function} [options.needed=null] If set, this function is passed a
-	   *    Deferred object and must return a truthy value if the object is still
-	   *    needed.
-	   */
-	  var fetchQueue = function (options) {
-	    if (!(this instanceof fetchQueue)) {
-	      return new fetchQueue(options);
-	    }
-
-	    options = options || {};
-	    this._size = options.size || 6;
-	    this._track = options.track || 600;
-	    this._needed = options.needed || null;
-	    this._batch = false;
-
-	    var m_this = this,
-	        m_next_batch = 1;
-
-	    /**
-	     * Get/set the maximum concurrent deferred object size.
-	     */
-	    Object.defineProperty(this, 'size', {
-	      get: function () { return this._size; },
-	      set: function (n) {
-	        this._size = n;
-	        this.next_item();
-	      }
-	    });
-
-	    /**
-	     * Get the current queue size.
-	     */
-	    Object.defineProperty(this, 'length', {
-	      get: function () { return this._queue.length; }
-	    });
-
-	    /**
-	     * Get the current number of processing items.
-	     */
-	    Object.defineProperty(this, 'processing', {
-	      get: function () { return this._processing; }
-	    });
-
-	    /**
-	     * Remove all items from the queue.
-	     */
-	    this.clear = function () {
-	      this._queue = [];
-	      this._processing = 0;
-	      return this;
-	    };
-
-	    /**
-	     * Add a Deferred object to the queue.
-	     * @param {Deferred} defer Deferred object to add to the queue.
-	     * @param {function} callback a function to call when the item's turn is
-	     *  granted.
-	     * @param {boolean} atEnd if false, add the item to the front of the queue
-	     *  if batching is turned off or at the end of the current batch if it is
-	     *  turned on.  If true, always add the item to the end of the queue.
-	     */
-	    this.add = function (defer, callback, atEnd) {
-	      if (defer.__fetchQueue) {
-	        var pos = $.inArray(defer, this._queue);
-	        if (pos >= 0) {
-	          this._queue.splice(pos, 1);
-	          this._addToQueue(defer, atEnd);
-	          return defer;
-	        }
-	      }
-	      var wait = $.Deferred();
-	      var process = $.Deferred();
-	      wait.then(function () {
-	        $.when(callback.call(defer)).always(process.resolve);
-	      }, process.resolve);
-	      defer.__fetchQueue = wait;
-	      this._addToQueue(defer, atEnd);
-	      $.when(wait, process).always(function () {
-	        if (m_this._processing > 0) {
-	          m_this._processing -= 1;
-	        }
-	        m_this.next_item();
-	      }).promise(defer);
-	      m_this.next_item();
-	      return defer;
-	    };
-
-	    /**
-	     * Add an item to the queue.  If batches are being used, add it at after
-	     * other items in the same batch.
-	     * @param {Deferred} defer Deferred object to add to the queue.
-	     * @param {boolean} atEnd if false, add the item to the front of the queue
-	     *  if batching is turned off or at the end of the current batch if it is
-	     *  turned on.  If true, always add the item to the end of the queue.
-	     */
-	    this._addToQueue = function (defer, atEnd) {
-	      defer.__fetchQueue._batch = this._batch;
-	      if (atEnd) {
-	        this._queue.push(defer);
-	      } else if (!this._batch) {
-	        this._queue.unshift(defer);
-	      } else {
-	        for (var i = 0; i < this._queue.length; i += 1) {
-	          if (this._queue[i].__fetchQueue._batch !== this._batch) {
-	            break;
-	          }
-	        }
-	        this._queue.splice(i, 0, defer);
-	      }
-	    };
-
-	    /**
-	     * Get the position of a deferred object in the queue.
-	     * @param {Deferred} defer Deferred object to get the position of.
-	     * @returns {number} -1 if not in the queue, or the position in the queue.
-	     */
-	    this.get = function (defer) {
-	      return $.inArray(defer, this._queue);
-	    };
-
-	    /**
-	     * Remove a Deferred object from the queue.
-	     * @param {Deferred} defer Deferred object to add to the queue.
-	     * @returns {bool} true if the object was removed
-	     */
-	    this.remove = function (defer) {
-	      var pos = $.inArray(defer, this._queue);
-	      if (pos >= 0) {
-	        this._queue.splice(pos, 1);
-	        return true;
-	      }
-	      return false;
-	    };
-
-	    /**
-	     * Start a new batch or clear using batches.
-	     * @param {boolean} start true to start a new batch, false to turn off
-	     *                        using batches.  Undefined to return the current
-	     *                        state of batches.
-	     * @return {Number|boolean|Object} the current batch state or this object.
-	     */
-	    this.batch = function (start) {
-	      if (start === undefined) {
-	        return this._batch;
-	      }
-	      if (!start) {
-	        this._batch = false;
-	      } else {
-	        this._batch = m_next_batch;
-	        m_next_batch += 1;
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Check if any items are queued and if there if there are not too many
-	     * deferred objects being processed.  If so, process more items.
-	     */
-	    this.next_item = function () {
-	      if (m_this._innextitem) {
-	        return;
-	      }
-	      m_this._innextitem = true;
-	      /* if the queue is greater than the track size, check each item to see
-	       * if it is still needed. */
-	      if (m_this._queue.length > m_this._track && this._needed) {
-	        for (var i = m_this._queue.length - 1; i >= 0; i -= 1) {
-	          if (!m_this._needed(m_this._queue[i])) {
-	            var discard = m_this._queue.splice(i, 1)[0];
-	            m_this._processing += 1;
-	            discard.__fetchQueue.reject();
-	            delete discard.__fetchQueue;
-	          }
-	        }
-	      }
-	      while (m_this._processing < m_this._size && m_this._queue.length) {
-	        var defer = m_this._queue.shift();
-	        if (defer.__fetchQueue) {
-	          m_this._processing += 1;
-	          var needed = m_this._needed ? m_this._needed(defer) : true;
-	          if (needed) {
-	            defer.__fetchQueue.resolve();
-	          } else {
-	            defer.__fetchQueue.reject();
-	          }
-	          delete defer.__fetchQueue;
-	        }
-	      }
-	      m_this._innextitem = false;
-	    };
-
-	    this.clear();
-	    return this;
-	  };
-
-	  return fetchQueue;
-	})();
-
-
-/***/ }),
-/* 230 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var featureLayer = __webpack_require__(220);
-	var object = __webpack_require__(203);
-
-	/**
-	 * Create a new instance of class fileReader
-	 *
-	 * @class geo.fileReader
-	 * @extends geo.object
-	 * @returns {geo.fileReader}
-	 */
-	var fileReader = function (arg) {
-	  'use strict';
-	  if (!(this instanceof fileReader)) {
-	    return new fileReader(arg);
-	  }
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  arg = arg || {};
-
-	  if (!(arg.layer instanceof featureLayer)) {
-	    throw new Error('fileReader must be given a feature layer');
-	  }
-
-	  var m_layer = arg.layer;
-
-	  /**
-	   * Get the feature layer attached to the reader
-	   */
-	  this.layer = function () {
-	    return m_layer;
-	  };
-
-	  /**
-	   * Tells the caller if it can handle the given file by returning a boolean.
-	   */
-	  this.canRead = function () {
-	    return false;
-	  };
-
-	  /**
-	   * Reads the file object and calls the done function when finished.  As an
-	   * argument to done, provides a boolean that reports if the read was a
-	   * success.  Possibly, it can call done with an object containing details
-	   * of the read operation.
-	   */
-	  this.read = function (file, done) {
-	    done(false);
-	  };
-
-	  /**
-	   * Return a FileReader with handlers attached.
-	   */
-	  function newFileReader(done, progress) {
-	    var reader = new FileReader();
-	    if (progress) {
-	      reader.onprogress = progress;
-	    }
-	    reader.onloadend = function () {
-	      if (!reader.result) {
-	        done(reader.error);
-	      }
-	      done(reader.result);
-	    };
-	    return reader;
-	  }
-
-	  /**
-	   * Private method for reading a file object as a string.  Calls done with
-	   * the string content when finished or an error object if unsuccessful.
-	   * Optionally, the caller can provide a progress method that is called
-	   * after reading each slice.
-	   */
-	  this._getString = function (file, done, progress) {
-	    var reader = newFileReader(done, progress);
-	    reader.readAsText(file);
-	  };
-
-	  /**
-	   * Like _getString, but returns an ArrayBuffer object.
-	   */
-	  this._getArrayBuffer = function (file, done, progress) {
-	    var reader = newFileReader(done, progress);
-	    reader.readAsText(file);
-	  };
-
-	  return this;
-	};
-
-	inherit(fileReader, object);
-	module.exports = fileReader;
-
-
-/***/ }),
-/* 231 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class graphFeature
-	 *
-	 * @class geo.graphFeature
-	 * @extends geo.feature
-	 * @returns {geo.graphFeature}
-	 */
-	var graphFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof graphFeature)) {
-	    return new graphFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var util = __webpack_require__(83);
-	  var registry = __webpack_require__(201);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_draw = this.draw,
-	      s_style = this.style,
-	      m_nodes = null,
-	      m_points = null,
-	      m_children = function (d) { return d.children; },
-	      m_links = [],
-	      s_init = this._init,
-	      s_exit = this._exit;
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(true, {},
-	      {
-	        nodes: {
-	          radius: 5.0,
-	          fill: true,
-	          fillColor: { r: 1.0, g: 0.0, b: 0.0 },
-	          strokeColor: { r: 0, g: 0, b: 0 }
-	        },
-	        links: {
-	          strokeColor: { r: 0.0, g: 0.0, b: 0.0 }
-	        },
-	        linkType: 'path' /* 'path' || 'line' */
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    m_this.style(defaultStyle);
-	    m_this.nodes(function (d) { return d; });
-	  };
-
-	  /**
-	   * Call child _build methods
-	   */
-	  this._build = function () {
-	    m_this.children().forEach(function (child) {
-	      child._build();
-	    });
-	  };
-
-	  /**
-	   * Call child _update methods
-	   */
-	  this._update = function () {
-	    m_this.children().forEach(function (child) {
-	      child._update();
-	    });
-	  };
-
-	  /**
-	   * Custom _exit method to remove all sub-features
-	   */
-	  this._exit = function () {
-	    m_this.data([]);
-	    m_links.forEach(function (link) {
-	      link._exit();
-	      m_this.removeChild(link);
-	    });
-	    m_links = [];
-	    m_points._exit();
-	    m_this.removeChild(m_points);
-	    s_exit();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set style
-	   */
-	  this.style = function (arg, arg2) {
-	    var out = s_style.call(m_this, arg, arg2);
-	    if (out !== m_this) {
-	      return out;
-	    }
-	    // set styles for sub-features
-	    m_points.style(arg.nodes);
-	    m_links.forEach(function (l) {
-	      l.style(arg.links);
-	    });
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set links accessor.
-	   */
-	  this.links = function (arg) {
-	    if (arg === undefined) {
-	      return m_children;
-	    }
-
-	    m_children = util.ensureFunction(arg);
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set nodes
-	   */
-	  this.nodes = function (val) {
-	    if (val === undefined) {
-	      return m_nodes;
-	    }
-	    m_nodes = val;
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get internal node feature
-	   */
-	  this.nodeFeature = function () {
-	    return m_points;
-	  };
-
-	  /**
-	   * Get internal link features
-	   */
-	  this.linkFeatures = function () {
-	    return m_links;
-	  };
-
-	  /**
-	   * Build the feature for drawing
-	   */
-	  this.draw = function () {
-
-	    var layer = m_this.layer(),
-	        data = m_this.data(),
-	        nLinks = 0,
-	        style;
-
-	    // get the feature style object
-	    style = m_this.style();
-
-	    // Bind data to the point nodes
-	    m_points.data(data);
-	    m_points.style(style.nodes);
-
-	    // get links from node connections
-	    data.forEach(function (source) {
-	      (source.children || []).forEach(function (target) {
-	        var link;
-	        nLinks += 1;
-	        if (m_links.length < nLinks) {
-	          link = registry.createFeature(
-	            style.linkType, layer, layer.renderer()
-	          ).style(style.links);
-	          m_this.addChild(link);
-	          m_links.push(link);
-	        }
-	        m_links[nLinks - 1].data([source, target]);
-	      });
-	    });
-
-	    m_links.splice(nLinks, m_links.length - nLinks).forEach(function (l) {
-	      l._exit();
-	      m_this.removeChild(l);
-	    });
-
-	    s_draw();
-	    return m_this;
-	  };
-
-	  m_points = registry.createFeature(
-	    'point',
-	    this.layer(),
-	    this.layer().renderer()
-	  );
-	  m_this.addChild(m_points);
-
-	  if (arg.nodes) {
-	    this.nodes(arg.nodes);
-	  }
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(graphFeature, feature);
-	module.exports = graphFeature;
-
-
-/***/ }),
-/* 232 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-	var transform = __webpack_require__(11);
-
-	/**
-	 * Create a new instance of class heatmapFeature
-	 *
-	 * @class geo.heatmapFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.feature
-	 * @param {Object|Function} [position] Position of the data.  Default is
-	 *   (data).
-	 * @param {Object|Function} [intensity] Scalar value of each data point. Scalar
-	 *   value must be a positive real number and will be used to compute
-	 *   the weight for each data point.
-	 * @param {number} [maxIntensity=null] Maximum intensity of the data. Maximum
-	 *   intensity must be a positive real number and will be used to normalize all
-	 *   intensities with a dataset. If no value is given, then a it will
-	 *   be computed.
-	 * @param {number} [minIntensity=null] Minimum intensity of the data. Minimum
-	 *   intensity must be a positive real number will be used to normalize all
-	 *   intensities with a dataset. If no value is given, then a it will
-	 *   be computed.
-	 * @param {number} [updateDelay=1000] Delay in milliseconds after a zoom,
-	 *   rotate, or pan event before recomputing the heatmap.
-	 * @param {boolean|number|'auto'} [binned='auto'] If true or a number,
-	 *   spatially bin data as part of producing the heatpmap.  If false, each
-	 *   datapoint stands on its own.  If 'auto', bin data if there are more data
-	 *   points than there would be bins.  Using true or auto uses bins that are
-	 *   max(Math.floor((radius + blurRadius) / 8), 3).
-	 * @param {Object|string|Function} [style.color] Color transfer function that.
-	 *   will be used to evaluate color of each pixel using normalized intensity
-	 *   as the look up value.
-	 * @param {Object|Function} [style.radius=10] Radius of a point in terms of
-	 *   number of pixels.
-	 * @param {Object|Function} [style.blurRadius=10] Blur radius for each point in
-	 *  terms of number of pixels.
-	 * @param {boolean} [style.gaussian=true] If true, appoximate a gaussian
-	 *   distribution for each point using a multi-segment linear radial
-	 *   appoximation.  The total weight of the gaussian area is approximately the
-	 *   9/16 r^2.  The sum of radius + blurRadius is used as the radius for the
-	 *   gaussian distribution.
-	 * @returns {geo.heatmapFeature}
-	 */
-
-	var heatmapFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof heatmapFeature)) {
-	    return new heatmapFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_position,
-	      m_intensity,
-	      m_maxIntensity,
-	      m_minIntensity,
-	      m_updateDelay,
-	      m_binned,
-	      m_gcsPosition,
-	      s_init = this._init;
-
-	  m_position = arg.position || function (d) { return d; };
-	  m_intensity = arg.intensity || function (d) { return 1; };
-	  m_maxIntensity = arg.maxIntensity !== undefined ? arg.maxIntensity : null;
-	  m_minIntensity = arg.minIntensity !== undefined ? arg.minIntensity : null;
-	  m_binned = arg.binned !== undefined ? arg.binned : 'auto';
-	  m_updateDelay = arg.updateDelay ? parseInt(arg.updateDelay, 10) : 1000;
-
-	  /**
-	   * Get/Set maxIntensity
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.maxIntensity = function (val) {
-	    if (val === undefined) {
-	      return m_maxIntensity;
-	    } else {
-	      m_maxIntensity = val;
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set maxIntensity
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.minIntensity = function (val) {
-	    if (val === undefined) {
-	      return m_minIntensity;
-	    } else {
-	      m_minIntensity = val;
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set updateDelay
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.updateDelay = function (val) {
-	    if (val === undefined) {
-	      return m_updateDelay;
-	    } else {
-	      m_updateDelay = parseInt(val, 10);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set binned
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.binned = function (val) {
-	    if (val === undefined) {
-	      return m_binned;
-	    } else {
-	      if (val === 'true') {
-	        val = true;
-	      } else if (val === 'false') {
-	        val = false;
-	      } else if (val !== 'auto' && val !== true && val !== false) {
-	        val = parseInt(val, 10);
-	        if (val <= 0 || isNaN(val)) {
-	          val = false;
-	        }
-	      }
-	      m_binned = val;
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set position accessor
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_position;
-	    } else {
-	      m_position = val;
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get pre-computed gcs position accessor
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.gcsPosition = function () {
-	    this._update();
-	    return m_gcsPosition;
-	  };
-
-	  /**
-	   * Get/Set intensity
-	   *
-	   * @returns {geo.heatmap}
-	   */
-	  this.intensity = function (val) {
-	    if (val === undefined) {
-	      return m_intensity;
-	    } else {
-	      m_intensity = val;
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        radius: 10,
-	        blurRadius: 10,
-	        gaussian: true,
-	        color: {0:    {r: 0, g: 0, b: 0.0, a: 0.0},
-	                0.25: {r: 0, g: 0, b: 1, a: 0.5},
-	                0.5:  {r: 0, g: 1, b: 1, a: 0.6},
-	                0.75: {r: 1, g: 1, b: 0, a: 0.7},
-	                1:    {r: 1, g: 0, b: 0, a: 0.8}}
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    m_this.style(defaultStyle);
-
-	    if (m_position) {
-	      m_this.dataTime().modified();
-	    }
-	  };
-
-	  /**
-	   * Build
-	   * @override
-	   */
-	  this._build = function () {
-	    var data = m_this.data(),
-	        intensity = null,
-	        position = [],
-	        setMax = (m_maxIntensity === null || m_maxIntensity === undefined),
-	        setMin = (m_minIntensity === null || m_minIntensity === undefined);
-
-	    data.forEach(function (d) {
-	      position.push(m_this.position()(d));
-	      if (setMax || setMin) {
-	        intensity = m_this.intensity()(d);
-	        if (m_maxIntensity === null || m_maxIntensity === undefined) {
-	          m_maxIntensity = intensity;
-	        }
-	        if (m_minIntensity === null || m_minIntensity === undefined) {
-	          m_minIntensity = intensity;
-	        }
-	        if (setMax && intensity > m_maxIntensity) {
-	          m_maxIntensity = intensity;
-	        }
-	        if (setMin && intensity < m_minIntensity) {
-	          m_minIntensity = intensity;
-	        }
-
-	      }
-	    });
-	    if (setMin && setMax && m_minIntensity === m_maxIntensity) {
-	      m_minIntensity -= 1;
-	    }
-	    m_gcsPosition = transform.transformCoordinates(
-	        m_this.gcs(), m_this.layer().map().gcs(), position);
-
-	    m_this.buildTime().modified();
-	    return m_this;
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(heatmapFeature, feature);
-	module.exports = heatmapFeature;
-
-
-/***/ }),
-/* 233 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var tile = __webpack_require__(234);
-
-	module.exports = (function () {
-	  'use strict';
-
-	  /**
-	   * This class defines a tile that is part of a standard "image pyramid", such
-	   * as an open street map tile set.  Every tile is uniquely indexed by a row,
-	   * column, and zoom level.  The number of rows/columns at zoom level z is
-	   * `2^z`, the number of pixels per tile is configurable.
-	   *
-	   * By default, this class assumes that images are fetch from the url, but
-	   * subclasses may define additional rendering steps to produce the images
-	   * before passing them off to the handlers.
-	   *
-	   * @class geo.imageTile
-	   * @param {object} spec The tile specification object
-	   *
-	   * @param {object} spec.index The global position of the tile
-	   * @param {number} spec.index.x The x-coordinate (usually the column number)
-	   * @param {number} spec.index.y The y-coordinate (usually the row number)
-	   * @param {number} spec.index.level The zoom level
-	   *
-	   * @param {object?} spec.size The size of each tile
-	   * @param {number} [spec.size.x=256] Width in pixels
-	   * @param {number} [spec.size.y=256] Height in pixels
-	   *
-	   * @param {string} spec.url A url to the image
-	   * @param {string} [spec.crossDomain='anonymous'] Image CORS attribute
-	   *
-	   * @param {object} spec.overlap The size of overlap with neighboring tiles
-	   * @param {number} [spec.overlap.x=0]
-	   * @param {number} [spec.overlap.y=0]
-	   */
-	  var imageTile = function (spec) {
-	    if (!(this instanceof imageTile)) {
-	      return new imageTile(spec);
-	    }
-
-	    var $ = __webpack_require__(1);
-
-	    spec.size = spec.size || {x: 256, y: 256};
-	    this._image = null;
-
-	    this._cors = (spec.crossDomain || spec.crossDomain === null) ? spec.crossDomain : 'anonymous';
-
-	    // Call superclass constructor
-	    tile.call(this, spec);
-
-	    /**
-	     * Read only accessor to the Image object used by the
-	     * tile.  Note, this method does not gaurantee that the
-	     * image data is available.  Use the promise interface
-	     * to add asyncronous handlers.
-	     * @returns {Image}
-	     */
-	    Object.defineProperty(this, 'image', {
-	      get: function () { return this._image; }
-	    });
-
-	    /**
-	     * Initiate the image request.
-	     *
-	     * @returns {this} The current tile class instance.
-	     */
-	    this.fetch = function () {
-	      var defer;
-	      if (!this._image) {
-	        this._image = new Image(this.size.x, this.size.y);
-	        // Only set the crossOrigin parameter if this is going across origins.
-	        if (this._cors && this._url.indexOf(':') >= 0 &&
-	            this._url.indexOf('/') === this._url.indexOf(':') + 1) {
-	          this._image.crossOrigin = this._cors;
-	        }
-	        defer = $.Deferred();
-	        this._image.onload = defer.resolve;
-	        this._image.onerror = defer.reject;
-	        this._image.src = this._url;
-
-	        // attach a promise interface to `this`
-	        defer.then(function () {
-	          this._fetched = true;
-	        }.bind(this)).promise(this);
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Set the opacity of the tile to 0 and gradually fade in
-	     * over the given number of milliseconds.  This will also
-	     * resolve the embedded promise interface.
-	     * @param {number} duration the duration of the animation in ms
-	     * @returns {this} chainable
-	     */
-	    this.fadeIn = function (duration) {
-	      var promise = this.fetch(), defer = $.Deferred();
-	      $(this._image).css('display', 'none');
-	      promise.then(function () {
-	        $(this._image).fadeIn(duration, function () {
-	          defer.resolve();
-	        });
-	      }.bind(this));
-	      return defer.promise(this);
-	    };
-
-	    return this;
-	  };
-
-	  inherit(imageTile, tile);
-	  return imageTile;
-	})();
-
-
-/***/ }),
-/* 234 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = (function () {
-	  'use strict';
-
-	  var $ = __webpack_require__(1);
-
-	  /**
-	   * This class defines the raw interface for a "tile" on a map.  A tile is
-	   * defined as a rectangular section of a map.  The base implementation
-	   * is independent of the actual content of the tile, but assumes that
-	   * the content is loaded asynchronously via a url.  The tile object
-	   * has a promise-like interface.  For example,
-	   *
-	   * tile.then(function (data) {...}).catch(function (data) {...});
-	   *
-	   * @class geo.tile
-	   * @param {Object} spec The tile specification object
-	   *
-	   * @param {Object} spec.index The global position of the tile
-	   * @param {Number} spec.index.x The x-coordinate (usually the column number)
-	   * @param {Number} spec.index.y The y-coordinate (usually the row number)
-	   *
-	   * @param {Object} spec.size The size of each tile
-	   * @param {Number} spec.size.x Width (usually in pixels)
-	   * @param {Number} spec.size.y Height (usually in pixels)
-	   *
-	   * @param {Object|String} spec.url A url or jQuery ajax config object
-	   *
-	   * @param {Object?} spec.overlap The size of overlap with neighboring tiles
-	   * @param {Number} [spec.overlap.x=0]
-	   * @param {Number} [spec.overlap.y=0]
-	   */
-	  var tile = function (spec) {
-	    if (!(this instanceof tile)) {
-	      return new tile(spec);
-	    }
-
-	    this._index = spec.index;
-	    this._size = spec.size;
-	    this._overlap = spec.overlap || {x: 0, y: 0};
-	    this._wrap = spec.wrap || {x: 1, y: 1};
-	    this._url = spec.url;
-	    this._fetched = false;
-	    this._queue = spec.queue || null;
-
-	    /**
-	     * Return the index coordinates.
-	     */
-	    Object.defineProperty(this, 'index', {
-	      get:
-	        function () { return this._index; }
-	    });
-
-	    /**
-	     * Return the tile sizes.
-	     */
-	    Object.defineProperty(this, 'size', {
-	      get: function () { return this._size; }
-	    });
-
-	    /**
-	     * Return the tile overlap sizes.
-	     */
-	    Object.defineProperty(this, 'overlap', {
-	      get: function () { return this._overlap; }
-	    });
-
-	    /**
-	     * Initiate the ajax request and add a promise interface
-	     * to the tile object.  This method exists to allow
-	     * derived classes the ability to override how the tile
-	     * is obtained.  For example, imageTile uses an Image
-	     * element rather than $.get.
-	     */
-	    this.fetch = function () {
-	      if (!this._fetched) {
-	        $.get(this._url).then(function () {
-	          this._fetched = true;
-	        }.bind(this)).promise(this);
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Return whether this tile has been fetched already.
-	     *
-	     * @returns {boolean} True if the tile has been fetched.
-	     */
-	    this.fetched = function () {
-	      return this._fetched;
-	    };
-
-	    /**
-	     * Add a method to be called with the data when the ajax request is
-	     * successfully resolved.
-	     *
-	     * @param {function?} onSuccess The success handler
-	     * @param {function?} onFailure The failure handler
-	     * @returns {this} Supports chained calling
-	     *
-	     */
-	    this.then = function (onSuccess, onFailure) {
-	      // both fetch and _queueAdd can replace the current then method
-	      if (!this.fetched() && this._queue && this._queue.add && (!this.state ||
-	          this.state() === 'pending')) {
-	        this._queue.add(this, this.fetch);
-	      } else {
-	        this.fetch();
-	      }
-	      // Call then on the new promise
-	      this.then(onSuccess, onFailure);
-	      return this;
-	    };
-
-	    /**
-	     * Add a method to be called with the data when the ajax fails.
-	     *
-	     * @param {function} method The rejection handler
-	     * @returns {this} Supports chained calling
-	     *
-	     */
-	    this.catch = function (method) {
-	      this.then(undefined, method);
-	      return this;
-	    };
-
-	    /**
-	     * Return a unique string representation of the given tile useable
-	     * as a hash key.  Possibly extend later to include url information
-	     * to make caches aware of the tile source.
-	     * @returns {string}
-	     */
-	    this.toString = function () {
-	      return [this._index.level || 0, this._index.y, this._index.x].join('_');
-	    };
-
-	    /**
-	     * Return the bounds of the tile given an index offset and
-	     * a translation.
-	     *
-	     * @param {object} index The tile index containing (0, 0)
-	     * @param {object} shift The coordinates of (0, 0) inside the tile
-	     */
-	    this.bounds = function (index, shift) {
-	      var left, right, bottom, top;
-	      left = this.size.x * (this.index.x - index.x) - this.overlap.x - shift.x;
-	      right = left + this.size.x + this.overlap.x * 2;
-	      top = this.size.y * (this.index.y - index.y) - this.overlap.y - shift.y;
-	      bottom = top + this.size.y + this.overlap.y * 2;
-	      return {
-	        left: left,
-	        right: right,
-	        bottom: bottom,
-	        top: top
-	      };
-	    };
-
-	    /**
-	     * Computes the global coordinates of the bottom edge.
-	     * @returns {number}
-	     */
-	    Object.defineProperty(this, 'bottom', {
-	      get: function () {
-	        return this.size.y * (this.index.y + 1) + this.overlap.y;
-	      }
-	    });
-
-	    /**
-	     * Computes the global coordinates of the top edge.
-	     * @returns {number}
-	     */
-	    Object.defineProperty(this, 'top', {
-	      get: function () {
-	        return this.size.y * this.index.y - this.overlap.y;
-	      }
-	    });
-
-	    /**
-	     * Computes the global coordinates of the left edge.
-	     * @returns {number}
-	     */
-	    Object.defineProperty(this, 'left', {
-	      get: function () {
-	        return this.size.x * this.index.x - this.overlap.x;
-	      }
-	    });
-
-	    /**
-	     * Computes the global coordinates of the right edge.
-	     * @returns {number}
-	     */
-	    Object.defineProperty(this, 'right', {
-	      get: function () {
-	        return this.size.x * (this.index.x + 1) + this.overlap.x;
-	      }
-	    });
-
-	    /**
-	     * Returns the global image size at this level.
-	     * @returns {number}
-	     */
-	    Object.defineProperty(this, 'levelSize', {
-	      value: {
-	        width: Math.pow(2, this.index.level || 0) * this.size.x,
-	        height: Math.pow(2, this.index.level || 0) * this.size.y
-	      }
-	    });
-
-	    /**
-	     * Set the opacity of the tile to 0 and gradually fade in
-	     * over the given number of milliseconds.  This will also
-	     * resolve the embedded promise interface.
-	     * @param {number} duration the duration of the animation in ms
-	     * @returns {this} chainable
-	     */
-	    this.fadeIn = function (duration) {
-	      $.noop(duration);
-	      return this;
-	    };
-	  };
-	  return tile;
-	})();
-
-
-/***/ }),
-/* 235 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFileReader = __webpack_require__(201).registerFileReader;
-	var fileReader = __webpack_require__(230);
-
-	/**
-	* Create a new instance of class jsonReader
-	*
-	* @class geo.jsonReader
-	* @extends geo.fileReader
-	* @returns {geo.jsonReader}
-	*/
-	var jsonReader = function (arg) {
-	  'use strict';
-	  if (!(this instanceof jsonReader)) {
-	    return new jsonReader(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-	  var convertColor = __webpack_require__(83).convertColor;
-
-	  var m_this = this;
-
-	  fileReader.call(this, arg);
-
-	  this.canRead = function (file) {
-	    if (file instanceof File) {
-	      return (file.type === 'application/json' || file.name.match(/\.json$/));
-	    } else if (typeof file === 'string') {
-	      try {
-	        JSON.parse(file);
-	      } catch (e) {
-	        return false;
-	      }
-	      return true;
-	    }
-	    try {
-	      if (Array.isArray(m_this._featureArray(file))) {
-	        return true;
-	      }
-	    } catch (e) {}
-	    return false;
-	  };
-
-	  this._readObject = function (file, done, progress) {
-	    var object;
-	    function onDone(fileString) {
-	      if (typeof fileString !== 'string') {
-	        done(false);
-	      }
-
-	      // We have two possibilities here:
-	      // 1) fileString is a JSON string or is
-	      // a URL.
-	      try {
-	        object = JSON.parse(fileString);
-	        done(object);
-	      } catch (e) {
-	        if (!object) {
-	          $.ajax({
-	            type: 'GET',
-	            url: fileString,
-	            dataType: 'text'
-	          }).done(function (data) {
-	            object = JSON.parse(data);
-	            done(object);
-	          }).fail(function () {
-	            done(false);
-	          });
-	        }
-	      }
-	    }
-
-	    if (file instanceof File) {
-	      m_this._getString(file, onDone, progress);
-	    } else if (typeof file === 'string') {
-	      onDone(file);
-	    } else {
-	      done(file);
-	    }
-	  };
-
-	  /**
-	   * Return an array of normalized geojson features.  This
-	   * will do the following:
-	   *
-	   * 1. Turn bare geometries into features
-	   * 2. Turn multi-geometry features into single geometry features
-	   *
-	   * Returns an array of Point, LineString, or Polygon features.
-	   * @protected
-	   */
-	  this._featureArray = function (spec) {
-	    var features, normalized = [];
-	    switch (spec.type) {
-	      case 'FeatureCollection':
-	        features = spec.features;
-	        break;
-
-	      case 'Feature':
-	        features = [spec];
-	        break;
-
-	      case 'GeometryCollection':
-	        features = spec.geometries.map(function (g) {
-	          return {
-	            type: 'Feature',
-	            geometry: g,
-	            properties: {}
-	          };
-	        });
-	        break;
-
-	      case 'Point':
-	      case 'LineString':
-	      case 'Polygon':
-	      case 'MultiPoint':
-	      case 'MultiLineString':
-	      case 'MultiPolygon':
-	        features = [{
-	          type: 'Feature',
-	          geometry: spec,
-	          properties: {}
-	        }];
-	        break;
-
-	      default:
-	        throw new Error('Invalid json type');
-	    }
-
-	    // flatten multi features
-	    features.forEach(function (feature) {
-	      Array.prototype.push.apply(normalized, m_this._feature(feature));
-	    });
-
-	    // remove features with empty geometries
-	    normalized = normalized.filter(function (feature) {
-	      return feature.geometry &&
-	        feature.geometry.coordinates &&
-	        feature.geometry.coordinates.length;
-	    });
-	    return normalized;
-	  };
-
-	  /**
-	   * Normalize a feature object turning multi geometry features
-	   * into an array of features, and single geometry features into
-	   * an array containing one feature.
-	   */
-	  this._feature = function (spec) {
-	    if (spec.type !== 'Feature') {
-	      throw new Error('Invalid feature object');
-	    }
-	    switch (spec.geometry.type) {
-	      case 'Point':
-	      case 'LineString':
-	      case 'Polygon':
-	        return [spec];
-
-	      case 'MultiPoint':
-	      case 'MultiLineString':
-	      case 'MultiPolygon':
-	        return spec.geometry.coordinates.map(function (c) {
-	          return {
-	            type: 'Feature',
-	            geometry: {
-	              type: spec.geometry.type.replace('Multi', ''),
-	              coordinates: c
-	            },
-	            properties: spec.properties
-	          };
-	        });
-
-	      default:
-	        throw new Error('Invalid geometry type');
-	    }
-	  };
-
-	  /**
-	   * Convert from a geojson position array into a geojs position object.
-	   */
-	  this._position = function (p) {
-	    return {
-	      x: p[0],
-	      y: p[1],
-	      z: p[2] || 0
-	    };
-	  };
-
-	  /**
-	   * Defines a style accessor the returns the given
-	   * value of the property object, or a default value.
-	   *
-	   * @protected
-	   * @param {string} prop The property name
-	   * @param {object} default The default value
-	   * @param {object} [spec] The argument containing the main property object
-	   * @param {function} [convert] An optional conversion function
-	   */
-	  this._style = function (prop, _default, spec, convert) {
-	    convert = convert || function (d) { return d; };
-	    _default = convert(_default);
-	    return function (d, i, e, j) {
-	      var p;
-	      if (spec && j !== undefined && spec[j] !== undefined) {
-	        p = spec[j].properties;
-	      } else {
-	        p = d.properties;
-	      }
-	      if (p !== undefined && p.hasOwnProperty(prop)) {
-	        return convert(p[prop]);
-	      }
-	      return _default;
-	    };
-	  };
-
-	  this.read = function (file, done, progress) {
-
-	    function _done(object) {
-	      var features, allFeatures = [], points, lines, polygons;
-
-	      features = m_this._featureArray(object);
-
-	      // process points
-	      points = features.filter(function (f) { return f.geometry.type === 'Point'; });
-	      if (points.length) {
-	        allFeatures.push(
-	          m_this.layer().createFeature('point')
-	            .data(points)
-	            .position(function (d) {
-	              return m_this._position(d.geometry.coordinates);
-	            })
-	            .style({
-	              fill: m_this._style('fill', true),
-	              fillColor: m_this._style('fillColor', '#ff7800', null, convertColor),
-	              fillOpacity: m_this._style('fillOpacity', 0.8),
-	              stroke: m_this._style('stroke', true),
-	              strokeColor: m_this._style('strokeColor', '#000000', null, convertColor),
-	              strokeWidth: m_this._style('strokeWidth', 1),
-	              strokeOpacity: m_this._style('strokeOpacity', 1),
-	              radius: m_this._style('radius', 8)
-	            })
-	        );
-	      }
-
-	      // process lines
-	      lines = features.filter(function (f) { return f.geometry.type === 'LineString'; });
-	      if (lines.length) {
-	        allFeatures.push(
-	          m_this.layer().createFeature('line')
-	            .data(lines)
-	            .line(function (d) {
-	              return d.geometry.coordinates;
-	            })
-	            .position(m_this._position)
-	            .style({
-	              strokeColor: m_this._style('strokeColor', '#ff7800', lines, convertColor),
-	              strokeWidth: m_this._style('strokeWidth', 4, lines),
-	              strokeOpacity: m_this._style('strokeOpacity', 0.5, lines),
-	              strokeOffset: m_this._style('strokeOffset', 0, lines),
-	              lineCap: m_this._style('lineCap', 'butt', lines),
-	              lineJoin: m_this._style('lineCap', 'miter', lines),
-	              closed: m_this._style('closed', false, lines)
-	            })
-	        );
-	      }
-
-	      // process polygons
-	      polygons = features.filter(function (f) { return f.geometry.type === 'Polygon'; });
-	      if (polygons.length) {
-	        allFeatures.push(
-	          m_this.layer().createFeature('polygon')
-	            .data(polygons)
-	            .polygon(function (d, i) {
-	              return {
-	                outer: d.geometry.coordinates[0],
-	                inner: d.geometry.coordinates.slice(1)
-	              };
-	            })
-	            .position(m_this._position)
-	            .style({
-	              fill: m_this._style('fill', true),
-	              fillColor: m_this._style('fillColor', '#b0de5c', polygons, convertColor),
-	              fillOpacity: m_this._style('fillOpacity', 0.8, polygons),
-	              stroke: m_this._style('stroke', true),
-	              strokeColor: m_this._style('strokeColor', '#999999', polygons, convertColor),
-	              strokeWidth: m_this._style('strokeWidth', 2, polygons),
-	              strokeOpacity: m_this._style('strokeOpacity', 1, polygons)
-	            })
-	        );
-	      }
-	      if (done) {
-	        done(allFeatures);
-	      }
-	    }
-
-	    m_this._readObject(file, _done, progress);
-	  };
-	};
-
-	inherit(jsonReader, fileReader);
-	registerFileReader('jsonReader', jsonReader);
-	module.exports = jsonReader;
-
-
-/***/ }),
-/* 236 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var vgl = __webpack_require__(86);
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-
-	/**
-	 * Creates a new map object.
-	 *
-	 * @class
-	 * @alias geo.map
-	 * @extends geo.sceneObject
-	 *
-	 * @param {object} arg Options object
-	 *
-	 * @param {string} arg.node DOM selector for the map container.
-	 *   *** Always required ***
-	 *
-	 * @param {string|geo.transform} [arg.gcs='EPSG:3857']
-	 *   The main coordinate system of the map (this is often web Mercator).
-	 *   * Required when using a domain/CS different from OSM *
-	 * @param {string|geo.transform} [arg.ingcs='EPSG:4326']
-	 *   The default coordinate system of interface calls (this is often latitude
-	 *   and longitude).
-	 * @param {number} [arg.unitsPerPixel=156543] GCS to pixel unit scaling at zoom
-	 *   0 (i.e. meters per pixel or degrees per pixel).
-	 * @param {object?} [arg.maxBounds] The maximum visible map bounds.
-	 * @param {number} [arg.maxBounds.left=-20037508] The left bound.
-	 * @param {number} [arg.maxBounds.right=20037508] The right bound.
-	 * @param {number} [arg.maxBounds.bottom=-20037508] The bottom bound.
-	 * @param {number} [arg.maxBounds.top=20037508] The top bound.
-	 *
-	 * @param {number} [arg.zoom=4] Initial zoom.
-	 * @param {object?} [arg.center] Initial map center.
-	 * @param {number} arg.center.x=0
-	 * @param {number} arg.center.y=0
-	 * @param {number} [arg.rotation=0] Initial clockwise rotation in radians.
-	 * @param {number?} [arg.width] The map width (default node width).
-	 * @param {number?} [arg.height] The map height (default node height).
-	 *
-	 * @param {number} [arg.min=0] Minimum zoom level (though fitting to the
-	 *   viewport may make it so this is smaller than the smallest possible value).
-	 * @param {number} [arg.max=16] Maximum zoom level.
-	 * @param {boolean} [arg.discreteZoom=false] If `true`, only allow integer zoom
-	 *   levels.  `false` for any zoom level.
-	 * @param {boolean|function} [arg.allowRotation=true] `false` prevents
-	 *   rotation, `true` allows any rotation.  If a function, the function is
-	 *   called with a rotation (angle in radians) and returns a valid rotation
-	 *   (this can be used to constrain the rotation to a range or specific to
-	 *   values).
-	 *
-	 * @param {geo.camera?} [arg.camera] The camera to control the view.
-	 * @param {geo.mapInteractor?} [arg.interactor] The UI event handler.  If
-	 *   `undefined`, a default interactor is created and used.  If `null`, no
-	 *   interactor is attached to the map.
-	 * @param {array} [arg.animationQueue] An array used to synchronize animations.
-	 *   If specified, this should be an empty array or the same array as passed to
-	 *   other map instances.
-	 * @param {boolean} [arg.autoResize=true] Adjust map size on window resize.
-	 * @param {boolean} [arg.clampBoundsX=false] Prevent panning outside of the
-	 *   maximum bounds in the horizontal direction.
-	 * @param {boolean} [arg.clampBoundsY=true] Prevent panning outside of the
-	 *   maximum bounds in the vertical direction.
-	 * @param {boolean} [arg.clampZoom=true] Prevent zooming out so that the map
-	 *   area is smaller than the window.
-	 *
-	 * @returns {geo.map}
-	 */
-	var map = function (arg) {
-	  'use strict';
-	  if (!(this instanceof map)) {
-	    return new map(arg);
-	  }
-	  arg = arg || {};
-
-	  if (arg.node === undefined || arg.node === null) {
-	    console.warn('map creation requires a node');
-	    return this;
-	  }
-
-	  sceneObject.call(this, arg);
-
-	  var camera = __webpack_require__(211);
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-	  var registry = __webpack_require__(201);
-	  var geo_event = __webpack_require__(9);
-	  var mapInteractor = __webpack_require__(222);
-	  var uiLayer = __webpack_require__(237);
-
-	  /**
-	   * Private member variables
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      // See https://en.wikipedia.org/wiki/Web_Mercator
-	      // phiMax = 180 / Math.PI * (2 * Math.atan(Math.exp(Math.PI)) - Math.PI / 2),
-	      m_node = $(arg.node),
-	      m_width = arg.width || m_node.width() || 512,
-	      m_height = arg.height || m_node.height() || 512,
-	      m_gcs = arg.gcs === undefined ? 'EPSG:3857' : arg.gcs,
-	      m_ingcs = arg.ingcs === undefined ? 'EPSG:4326' : arg.ingcs,
-	      m_center = {x: 0, y: 0},
-	      m_zoom = arg.zoom === undefined ? 4 : arg.zoom,
-	      m_rotation = 0,
-	      m_fileReader = null,
-	      m_interactor = null,
-	      m_validZoomRange = {min: 0, max: 16, origMin: 0},
-	      m_transition = null,
-	      m_queuedTransition = null,
-	      m_discreteZoom = arg.discreteZoom ? true : false,
-	      m_allowRotation = (typeof arg.allowRotation === 'function' ?
-	                         arg.allowRotation : (arg.allowRotation === undefined ?
-	                         true : !!arg.allowRotation)),
-	      m_maxBounds = arg.maxBounds || {},
-	      m_camera = arg.camera || camera(),
-	      m_unitsPerPixel,
-	      m_clampBoundsX,
-	      m_clampBoundsY,
-	      m_clampZoom,
-	      m_animationQueue = arg.animationQueue || [],
-	      m_autoResize = arg.autoResize === undefined ? true : arg.autoResize,
-	      m_origin;
-
-	  /* Compute the maximum bounds on our map projection.  By default, x ranges
-	   * from [-180, 180] in the interface projection, and y matches the x range in
-	   * the map (not the interface) projection.  For images, this might be
-	   * [0, width] and [0, height] instead. */
-	  var mcx = ((m_maxBounds.left || 0) + (m_maxBounds.right || 0)) / 2,
-	      mcy = ((m_maxBounds.bottom || 0) + (m_maxBounds.top || 0)) / 2;
-	  m_maxBounds.left = transform.transformCoordinates(m_ingcs, m_gcs, {
-	    x: m_maxBounds.left !== undefined ? m_maxBounds.left : -180, y: mcy
-	  }).x;
-	  m_maxBounds.right = transform.transformCoordinates(m_ingcs, m_gcs, {
-	    x: m_maxBounds.right !== undefined ? m_maxBounds.right : 180, y: mcy
-	  }).x;
-	  m_maxBounds.top = (m_maxBounds.top !== undefined ?
-	    transform.transformCoordinates(m_ingcs, m_gcs, {
-	      x: mcx, y: m_maxBounds.top}).y : m_maxBounds.right);
-	  m_maxBounds.bottom = (m_maxBounds.bottom !== undefined ?
-	    transform.transformCoordinates(m_ingcs, m_gcs, {
-	      x: mcx, y: m_maxBounds.bottom}).y : m_maxBounds.left);
-	  m_unitsPerPixel = (arg.unitsPerPixel || (
-	    m_maxBounds.right - m_maxBounds.left) / 256);
-
-	  m_camera.viewport = {
-	    width: m_width,
-	    height: m_height,
-	    left: m_node.offset().left,
-	    top: m_node.offset().top
-	  };
-	  arg.center = util.normalizeCoordinates(arg.center);
-	  m_clampBoundsX = arg.clampBoundsX === undefined ? false : arg.clampBoundsX;
-	  m_clampBoundsY = arg.clampBoundsY === undefined ? true : arg.clampBoundsY;
-	  m_clampZoom = arg.clampZoom === undefined ? true : arg.clampZoom;
-
-	  /**
-	   * Get/set the number of world space units per display pixel at the given
-	   * zoom level.
-	   *
-	   * @param {number} [zoom=0] The target zoom level.
-	   * @param {number?} [unit] If present, set the `unitsPerPixel` at the
-	   *   specified zoom level.  Otherwise return the current value.
-	   * @returns {number|this}
-	   */
-	  this.unitsPerPixel = function (zoom, unit) {
-	    zoom = zoom || 0;
-	    if (unit) {
-	      // get the units at level 0
-	      m_unitsPerPixel = Math.pow(2, zoom) * unit;
-
-	      // redraw all the things
-	      m_this.draw();
-	      return m_this;
-	    }
-	    return Math.pow(2, -zoom) * m_unitsPerPixel;
-	  };
-
-	  /**
-	   * Get/set the animation queue.  Two maps can share a single animation queue
-	   * to ensure synchronized animations.  When setting, the animation queue will
-	   * merge values from the existing queue into the new queue.
-	   *
-	   * @param {array} [queue] The animation queue to use.
-	   * @returns {array|this} The current animation queue or the current map.
-	   */
-	  this.animationQueue = function (queue) {
-	    if (queue === undefined) {
-	      return m_animationQueue;
-	    }
-	    if (queue !== m_animationQueue) {
-	      if (m_animationQueue.length) {
-	        /* If the specified queue already has data in, don't copy the 0th
-	         * element of the existing queue, since the 0th element is always the
-	         * actual requestAnimationFrame reference.  In this case, cancel the
-	         * existing requestAnimationFrame.  By using a property of window,
-	         * tests can override this if needed. */
-	        if (queue.length && queue[0] !== m_animationQueue[0]) {
-	          window['cancelAnimationFrame'](m_animationQueue[0]);
-	        }
-	        for (var i = queue.length ? 1 : 0; i < m_animationQueue.length; i += 1) {
-	          queue.push(m_animationQueue[i]);
-	        }
-	      }
-	      m_animationQueue = queue;
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Get/set the autoResize flag.
-	   *
-	   * @param {boolean} [autoResize] Truthy to automaticaly resize the map when
-	   *    the size of the browser window changes.
-	   * @returns {boolean|this} The current state of autoResize or the current map.
-	   */
-	  this.autoResize = function (autoResize) {
-	    if (autoResize === undefined) {
-	      return m_autoResize;
-	    }
-	    if (autoResize !== m_autoResize) {
-	      $(window).off('resize', resizeSelf);
-	      m_autoResize = autoResize;
-	      if (m_autoResize) {
-	        $(window).on('resize', resizeSelf);
-	      }
-	    }
-	    return this;
-	  };
-
-	  /**
-	   * Get/set the `clampBoundsX` setting.  If changed, adjust the bounds of the
-	   * map as needed.
-	   *
-	   * @param {boolean} [clamp] The new clamp value.
-	   * @returns {boolean|this}
-	   */
-	  this.clampBoundsX = function (clamp) {
-	    if (clamp === undefined) {
-	      return m_clampBoundsX;
-	    }
-	    if (clamp !== m_clampBoundsX) {
-	      m_clampBoundsX = !!clamp;
-	      m_this.pan({x: 0, y: 0});
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/set the `clampBoundsY` setting.  If changed, adjust the bounds of the
-	   * map as needed.
-	   *
-	   * @param {boolean} [clamp] The new clamp value.
-	   * @returns {boolean|this}
-	   */
-	  this.clampBoundsY = function (clamp) {
-	    if (clamp === undefined) {
-	      return m_clampBoundsY;
-	    }
-	    if (clamp !== m_clampBoundsY) {
-	      m_clampBoundsY = !!clamp;
-	      m_this.pan({x: 0, y: 0});
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/set the `clampZoom` setting.  If changed, adjust the bounds of the map
-	   * as needed.
-	   *
-	   * @param {boolean} [clamp] The new clamp value.
-	   * @returns {boolean|this}
-	   */
-	  this.clampZoom = function (clamp) {
-	    if (clamp === undefined) {
-	      return m_clampZoom;
-	    }
-	    if (clamp !== m_clampZoom) {
-	      m_clampZoom = !!clamp;
-	      reset_minimum_zoom();
-	      m_this.zoom(m_zoom);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/set the `allowRotation` setting.  If changed, adjust the map as
-	   * needed.
-	   *
-	   * @param {boolean|function} [allowRotation] The new `allowRotation` value.
-	   *    `false` prevents rotation, `true` allows any rotation.  If a function,
-	   *    the function is called with a rotation (angle in radians) and returns a
-	   *    valid rotation (this can be used to constrain the rotation to a range
-	   *    or to specific values).
-	   * @returns {boolean|function|this}
-	   */
-	  this.allowRotation = function (allowRotation) {
-	    if (allowRotation === undefined) {
-	      return m_allowRotation;
-	    }
-	    if (typeof allowRotation !== 'function') {
-	      allowRotation = !!allowRotation;
-	    }
-	    if (allowRotation !== m_allowRotation) {
-	      m_allowRotation = allowRotation;
-	      m_this.rotation(m_rotation);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the map's world coordinate origin in gcs coordinates.
-	   *
-	   * @returns {geo.geoPosition}
-	   */
-	  this.origin = function () {
-	    return $.extend({}, m_origin);
-	  };
-
-	  /**
-	   * Get the camera.
-	   *
-	   * @returns {geo.camera}
-	   */
-	  this.camera = function () {
-	    return m_camera;
-	  };
-
-	  /**
-	   * Get or set the map gcs.  This is the coordinate system used in drawing the
-	   * map.
-	   *
-	   * @param {string} [arg] If `undefined`, return the current gcs.  Otherwise,
-	   *    a new value for the gcs.
-	   * @returns {string|this} A string used by {@linkcode geo.transform}.
-	   */
-	  this.gcs = function (arg) {
-	    if (arg === undefined) {
-	      return m_gcs;
-	    }
-	    if (arg !== m_gcs) {
-	      var oldCenter = m_this.center(undefined, undefined);
-	      m_gcs = arg;
-	      reset_minimum_zoom();
-	      var newZoom = fix_zoom(m_zoom);
-	      if (newZoom !== m_zoom) {
-	        m_this.zoom(newZoom);
-	      }
-	      m_this.center(oldCenter, undefined);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get or set the map interface gcs.  This is the coordinate system used when
-	   * getting or setting map bounds, center, and other values.
-	   *
-	   * @param {string} [arg] If `undefined`, returtn the current interface gcs.
-	   *    Otherwise, a new value for the interface gcs.
-	   * @returns {string|this} A string used by {@linkcode geo.transform}.
-	   */
-	  this.ingcs = function (arg) {
-	    if (arg === undefined) {
-	      return m_ingcs;
-	    }
-	    m_ingcs = arg;
-	    return m_this;
-	  };
-
-	  /**
-	   * Get root DOM node of the map.
-	   *
-	   * @returns {object}
-	   */
-	  this.node = function () {
-	    return m_node;
-	  };
-
-	  /**
-	   * Get/Set zoom level of the map.
-	   *
-	   * @param {number} [val] If `undefined`, return the current zoom level.
-	   *    Otherwise, the new zoom level to set.
-	   * @param {object} [origin] If present, specifies the center of the zoom;
-	   *    otherwise the map's display center is used.
-	   * @param {geo.geoPosition} origin.geo The gcs coordinates of the zoom
-	   *    center.
-	   * @param {geo.screenPosition} origin.map The display coordinates of the zoom
-	   *    center.
-	   * @param {boolean} [ignoreDiscreteZoom] If `true`, ignore the discreteZoom
-	   *    option when determining the new view.
-	   * @returns {number|this}
-	   * @fires geo.event.zoom
-	   * @fires geo.event.pan
-	   */
-	  this.zoom = function (val, origin, ignoreDiscreteZoom) {
-	    if (val === undefined) {
-	      return m_zoom;
-	    }
-	    var evt, bounds;
-	    /* If we are zooming around a point, ignore the clamp bounds */
-	    var aroundPoint = (origin && (origin.mapgcs || origin.geo) && origin.map);
-	    var ignoreClampBounds = aroundPoint;
-
-	    /* The ignoreDiscreteZoom flag is intended to allow non-integer zoom values
-	     * during animation. */
-	    val = fix_zoom(val, ignoreDiscreteZoom);
-	    if (val === m_zoom) {
-	      return m_this;
-	    }
-
-	    m_zoom = val;
-
-	    bounds = m_this.boundsFromZoomAndCenter(
-	      val, m_center, m_rotation, null, ignoreDiscreteZoom, ignoreClampBounds);
-	    m_this.modified();
-
-	    camera_bounds(bounds, m_rotation);
-	    evt = {
-	      zoomLevel: m_zoom,
-	      screenPosition: origin ? origin.map : undefined
-	    };
-	    m_this.geoTrigger(geo_event.zoom, evt);
-
-	    if (aroundPoint) {
-	      var shifted = m_this.gcsToDisplay(origin.mapgcs || origin.geo,
-	                                        origin.mapgcs ? null : undefined);
-	      m_this.pan({x: origin.map.x - shifted.x, y: origin.map.y - shifted.y},
-	                 ignoreDiscreteZoom, true);
-	    } else {
-	      m_this.pan({x: 0, y: 0}, ignoreDiscreteZoom);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Pan the map by a number of display pixels.
-	   *
-	   * @param {object} delta Amount to pan in display pixels.
-	   * @param {number} delta.x Horizontal distance on the display.
-	   * @param {number} delta.y Vertical distance on the display.
-	   * @param {boolean} [ignoreDiscreteZoom] If `true`, ignore the `discreteZoom`
-	   *    option when determining the new view.
-	   * @param {boolean|'limited'} [ignoreClampBounds] If `true` ignore the
-	   *    `clampBoundsX` and `clampBoundsY` options when determining the new
-	   *    view.  When `'limited'`, the `clampBoundsX` and `clampBoundsY` options
-	   *    are selectively enforced so that the map will not end up more out of
-	   *    bounds than its current state.
-	   * @returns {this}
-	   * @fires geo.event.pan
-	   */
-	  this.pan = function (delta, ignoreDiscreteZoom, ignoreClampBounds) {
-	    var evt = {
-	      screenDelta: delta
-	    };
-
-	    if (delta.x || delta.y) {
-	      var unit = m_this.unitsPerPixel(m_zoom);
-
-	      var sinr = Math.sin(m_rotation), cosr = Math.cos(m_rotation);
-	      m_camera.pan({
-	        x: (delta.x * cosr - (-delta.y) * sinr) * unit,
-	        y: (delta.x * sinr + (-delta.y) * cosr) * unit
-	      });
-	    }
-	    /* If m_clampBoundsX or m_clampBoundsY is true, clamp the pan */
-	    var bounds = m_camera.bounds;
-	    bounds = fix_bounds(bounds, m_rotation, ignoreClampBounds === 'limited' ? {
-	      x: delta.x, y: delta.y, unit: unit} : undefined,
-	      ignoreClampBounds === true);
-	    if (bounds !== m_camera.bounds) {
-	      var panPos = m_this.gcsToDisplay({
-	        x: m_camera.bounds.left, y: m_camera.bounds.top}, null);
-	      bounds = m_this.boundsFromZoomAndCenter(m_zoom, {
-	        x: (bounds.left + bounds.right) / 2,
-	        y: (bounds.top + bounds.bottom) / 2
-	      }, m_rotation, null, ignoreDiscreteZoom, true);
-	      camera_bounds(bounds, m_rotation);
-	      var clampPos = m_this.gcsToDisplay({
-	        x: m_camera.bounds.left, y: m_camera.bounds.top}, null);
-	      evt.screenDelta.x += clampPos.x - panPos.x;
-	      evt.screenDelta.y += clampPos.y - panPos.y;
-	    }
-
-	    m_center = m_camera.displayToWorld({
-	      x: m_width / 2,
-	      y: m_height / 2
-	    });
-
-	    m_this.geoTrigger(geo_event.pan, evt);
-
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/set the map rotation.  The rotation is performed around the current
-	   * view center.  Rotation mostly ignores `clampBoundsX`, as the behavior
-	   * feels peculiar otherwise.
-	   *
-	   * @param {number} rotation Absolute angle in radians (positive is
-	   *    clockwise).
-	   * @param {object} [origin] If specified, rotate about this origin.
-	   * @param {geo.geoPosition} origin.geo The gcs coordinates of the
-	   *    rotation center.
-	   * @param {geo.screenPosition} origin.map The display coordinates of the
-	   *    rotation center.
-	   * @param {boolean} [ignoreRotationFunc] If `true`, don't constrain the
-	   *    rotation.
-	   * @returns {number|this}
-	   * @fires geo.event.rotate
-	   * @fires geo.event.pan
-	   */
-	  this.rotation = function (rotation, origin, ignoreRotationFunc) {
-	    if (rotation === undefined) {
-	      return m_rotation;
-	    }
-	    var aroundPoint = (origin && origin.geo && origin.map);
-
-	    rotation = fix_rotation(rotation, ignoreRotationFunc);
-	    if (rotation === m_rotation) {
-	      return m_this;
-	    }
-	    m_rotation = rotation;
-
-	    var bounds = m_this.boundsFromZoomAndCenter(
-	        m_zoom, m_center, m_rotation, null, ignoreRotationFunc, true);
-	    m_this.modified();
-
-	    camera_bounds(bounds, m_rotation);
-
-	    var evt = {
-	      rotation: m_rotation,
-	      screenPosition: origin ? origin.map : undefined
-	    };
-
-	    m_this.geoTrigger(geo_event.rotate, evt);
-
-	    if (aroundPoint) {
-	      var shifted = m_this.gcsToDisplay(origin.geo);
-	      m_this.pan({x: origin.map.x - shifted.x, y: origin.map.y - shifted.y},
-	                 undefined, true);
-	    } else {
-	      m_this.pan({x: 0, y: 0}, undefined, true);
-	    }
-	    /* Changing the rotation can change our minimum zoom */
-	    reset_minimum_zoom();
-	    m_this.zoom(m_zoom, undefined, ignoreRotationFunc);
-	    return m_this;
-	  };
-
-	  /**
-	   * Set center of the map to the given geographic coordinates, or get the
-	   * current center.  Uses bare objects {x: 0, y: 0}.
-	   *
-	   * @param {geo.geoPosition} coordinates If specified, the new center of the
-	   *    map.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.  If setting the
-	   *    center, it is converted from this gcs to the map projection.  The
-	   *    returned center is converted from the map projection to this gcs.
-	   * @param {boolean} [ignoreDiscreteZoom] If `true`, ignore the `discreteZoom`
-	   *    option when determining the new view.
-	   * @param {boolean|'limited'} [ignoreClampBounds] If `true` ignore the
-	   *    `clampBoundsX` and `clampBoundsY` options when determining the new
-	   *    view.  When `'limited'`, the `clampBoundsX` and `clampBoundsY` options
-	   *    are selectively enforced so that the map will not end up more out of
-	   *    bounds than its current state.
-	   * @returns {geo.geoPosition|this}
-	   * @fires geo.event.pan
-	   */
-	  this.center = function (coordinates, gcs, ignoreDiscreteZoom,
-	                          ignoreClampBounds) {
-	    var center;
-	    if (coordinates === undefined) {
-	      center = $.extend({}, m_this.worldToGcs(m_center, gcs));
-	      return center;
-	    }
-
-	    // get the screen coordinates of the new center
-	    center = m_this.gcsToWorld(coordinates, gcs);
-
-	    camera_bounds(m_this.boundsFromZoomAndCenter(
-	        m_zoom, center, m_rotation, null, ignoreDiscreteZoom,
-	        ignoreClampBounds), m_rotation);
-	    m_this.modified();
-	    // trigger a pan event
-	    m_this.geoTrigger(geo_event.pan, {
-	      screenDelta: {x: 0, y: 0}
-	    });
-	    return m_this;
-	  };
-
-	  /**
-	   * Add a layer to the map.
-	   *
-	   * @param {string} layerName The type of layer to add to the map.
-	   * @param {object} arg Parameters for the new layer.
-	   * @returns {geo.layer}
-	   * @fires geo.event.layerAdd
-	   */
-	  this.createLayer = function (layerName, arg) {
-	    arg = arg || {};
-	    var newLayer = registry.createLayer(
-	      layerName, m_this, arg);
-
-	    if (newLayer) {
-	      m_this.addChild(newLayer);
-	      m_this.children().forEach(function (c) {
-	        if (c instanceof uiLayer) {
-	          c.moveToTop();
-	        }
-	      });
-	      newLayer._update();
-	      m_this.modified();
-
-	      m_this.geoTrigger(geo_event.layerAdd, {
-	        target: m_this,
-	        layer: newLayer
-	      });
-	    }
-
-	    return newLayer;
-	  };
-
-	  /**
-	   * Remove a layer from the map.
-	   *
-	   * @param {geo.layer?} layer Layer to remove from the map.
-	   * @returns {geo.layer}
-	   * @fires geo.event.layerRemove
-	   */
-	  this.deleteLayer = function (layer) {
-
-	    if (layer !== null && layer !== undefined) {
-	      layer._exit();
-	      m_this.removeChild(layer);
-
-	      m_this.modified();
-
-	      m_this.geoTrigger(geo_event.layerRemove, {
-	        target: m_this,
-	        layer: layer
-	      });
-	    }
-
-	    // Return deleted layer (similar to createLayer) as in the future
-	    // we may provide extension of this method to support deletion of
-	    // layer using id or some sort.
-	    return layer;
-	  };
-
-	  /**
-	   * Get or set the size of the map.
-	   *
-	   * @param {geo.screenSize} [arg] Size in pixels.
-	   * @returns {geo.screenSize|this} The size in pixels or the map object.
-	   */
-	  this.size = function (arg) {
-	    if (arg === undefined) {
-	      return {
-	        width: m_width,
-	        height: m_height
-	      };
-	    }
-	    // store the original center and restore it after the resize
-	    var oldCenter = m_this.center();
-	    m_width = arg.width || m_width;
-	    m_height = arg.height || m_height;
-
-	    reset_minimum_zoom();
-	    var newZoom = fix_zoom(m_zoom);
-	    if (newZoom !== m_zoom) {
-	      m_this.zoom(newZoom);
-	    }
-	    m_this.camera().viewport = {
-	      width: m_width,
-	      height: m_height,
-	      left: m_node.offset().left,
-	      top: m_node.offset().top
-	    };
-	    m_this.center(oldCenter);
-
-	    m_this.geoTrigger(geo_event.resize, {
-	      target: m_this,
-	      width: m_width,
-	      height: m_height
-	    });
-
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the rotated size of the map.  This is the width and height of the
-	   * non-rotated area necessary to enclose the rotated area in pixels.
-	   *
-	   * @returns {geo.screenSize} The size that fits the rotated map.
-	   */
-	  this.rotatedSize = function () {
-	    if (!this.rotation()) {
-	      return {
-	        width: m_width,
-	        height: m_height
-	      };
-	    }
-	    var bds = rotate_bounds_center(
-	        {x: 0, y: 0}, {width: m_width, height: m_height}, this.rotation());
-	    return {
-	      width: Math.abs(bds.right - bds.left),
-	      height: Math.abs(bds.top - bds.bottom)
-	    };
-	  };
-
-	  /**
-	   * Convert from gcs coordinates to map world coordinates.
-	   *
-	   * @param {geo.geoPosition} c The input coordinate to convert.
-	   * @param {string|geo.transform|null} [gcs] Input gcs.  `undefined` to use
-	   *    the interface gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.worldPosition} World space coordinates.
-	   */
-	  this.gcsToWorld = function (c, gcs) {
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    if (gcs !== m_gcs) {
-	      c = transform.transformCoordinates(gcs, m_gcs, c);
-	    }
-	    if (m_origin.x || m_origin.y || m_origin.z) {
-	      c = transform.affineForward(
-	        {origin: m_origin},
-	        [c]
-	      )[0];
-	    } else if (!('z' in c)) {
-	      c = {x: c.x, y: c.y, z: 0};
-	    }
-	    return c;
-	  };
-
-	  /**
-	   * Convert from map world coordinates to gcs coordinates.
-	   *
-	   * @param {geo.worldPosition} c The input coordinate to convert.
-	   * @param {string|geo.transform|null} [gcs] output gcs.  `undefined` to use
-	   *    the interface gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.geoPosition} GCS space coordinates.
-	   */
-	  this.worldToGcs = function (c, gcs) {
-	    if (m_origin.x || m_origin.y || m_origin.z) {
-	      c = transform.affineInverse(
-	        {origin: m_origin},
-	        [c]
-	      )[0];
-	    } else if (!('z' in c)) {
-	      c = {x: c.x, y: c.y, z: 0};
-	    }
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    if (gcs !== m_gcs) {
-	      c = transform.transformCoordinates(m_gcs, gcs, c);
-	    }
-	    return c;
-	  };
-
-	  /**
-	   * Convert from gcs coordinates to display coordinates.  This is identical to
-	   * calling `gcsToWorld` and then `worldToDisplay`.
-	   *
-	   * @param {geo.geoPosition} c The input coordinate to convert.
-	   * @param {string|geo.transform|null} [gcs] Input gcs.  `undefined` to use
-	   *    the interface gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.screenPosition} Display space coordinates.
-	   */
-	  this.gcsToDisplay = function (c, gcs) {
-	    c = m_this.gcsToWorld(c, gcs);
-	    return m_this.worldToDisplay(c);
-	  };
-
-	  /**
-	   * Convert from world coordinates to display coordinates using the attached
-	   * camera.
-	   *
-	   * @param {geo.worldPosition} c The input coordinate to convert.
-	   * @returns {geo.screenPosition} Display space coordinates.
-	   */
-	  this.worldToDisplay = function (c) {
-	    return m_camera.worldToDisplay(c);
-	  };
-
-	  /**
-	   * Convert from display to gcs coordinates.  This is identical to calling
-	   * `displayToWorld` and then `worldToGcs`.
-	   *
-	   * @param {geo.screenPosition} c The input display coordinate to convert.
-	   * @param {string|geo.transform|null} [gcs] Output gcs.  `undefined` to use
-	   *    the interface gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.geoPosition} GCS space coordinates.
-	   */
-	  this.displayToGcs = function (c, gcs) {
-	    c = m_this.displayToWorld(c); // done via camera
-	    return m_this.worldToGcs(c, gcs);
-	  };
-
-	  /**
-	   * Convert from display coordinates to world coordinates using the attached
-	   * camera.
-	   *
-	   * @param {geo.screenPosition} c The input coordinate to convert.
-	   * @returns {geo.worldPosition} World space coordinates.
-	   */
-	  this.displayToWorld = function (c) {
-	    return m_camera.displayToWorld(c);
-	  };
-
-	  /**
-	   * Redraw the map and all its layers.
-	   *
-	   * @returns {this} The map object.
-	   * @fires geo.event.draw
-	   * @fires geo.event.drawEnd
-	   */
-	  this.draw = function () {
-	    var i, layers = m_this.children();
-
-	    m_this.geoTrigger(geo_event.draw, {
-	      target: m_this
-	    });
-
-	    m_this._update();
-
-	    for (i = 0; i < layers.length; i += 1) {
-	      layers[i].draw();
-	    }
-
-	    m_this.geoTrigger(geo_event.drawEnd, {
-	      target: m_this
-	    });
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Get, set, or create and set a file reader to a layer in the map to be used
-	   * as a drop target.
-	   *
-	   * @param {string|object} [readerOrName] `undefined` to get the current
-	   *    reader, an instance of a file reader to set the reader, or a name to
-	   *    create a file reader.
-	   * @param {object} [opts] options Parameters for creating a file reader when
-	   *    the reader is specified by name.  If this includes `layer`, use that
-	   *    layer, otherwise create a layer using these options.
-	   * @returns {geo.fileReader|this}
-	   */
-	  this.fileReader = function (readerOrName, opts) {
-	    if (readerOrName === undefined) {
-	      return m_fileReader;
-	    }
-	    if (typeof readerOrName === 'string') {
-	      opts = opts || {};
-	      if (!opts.layer) {
-	        opts.layer = m_this.createLayer('feature', $.extend({}, opts));
-	      }
-	      opts.renderer = opts.layer.renderer().api();
-	      m_fileReader = registry.createFileReader(readerOrName, opts);
-	    } else {
-	      m_fileReader = readerOrName;
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize the map.
-	   *
-	   * @returns {this} The map object.
-	   */
-	  this._init = function () {
-
-	    if (m_node === undefined || m_node === null) {
-	      throw new Error('Map require DIV node');
-	    }
-
-	    if (m_node.data('data-geojs-map') && $.isFunction(m_node.data('data-geojs-map').exit)) {
-	      m_node.data('data-geojs-map').exit();
-	    }
-	    m_node.addClass('geojs-map');
-	    m_node.data('data-geojs-map', m_this);
-	    return m_this;
-	  };
-
-	  /**
-	   * Update map.  This updates all layers of the map.
-	   *
-	   * @param {object} [request] Optional information about the source of this
-	   *    update request.  This could be an event, for instance.  It is passed
-	   *    to individual layer's `_update` function.
-	   * @returns {this} The map object.
-	   */
-	  this._update = function (request) {
-	    var i, layers = m_this.children();
-	    for (i = 0; i < layers.length; i += 1) {
-	      layers[i]._update(request);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Exit this map.  This removes all layers, destroys current interactor, and
-	   * empties the associated DOM node.
-	   */
-	  this.exit = function () {
-	    var i, layers = m_this.children();
-	    for (i = layers.length - 1; i >= 0; i -= 1) {
-	      layers[i]._exit();
-	      m_this.removeChild(layers[i]);
-	    }
-	    if (m_this.interactor()) {
-	      m_this.interactor().destroy();
-	      m_this.interactor(null);
-	    }
-	    m_this.node().data('data-geojs-map', null);
-	    m_this.node().off('.geo');
-	    /* make sure the map node has nothing left in it */
-	    m_this.node().empty();
-	    $(window).off('resize', resizeSelf);
-	    s_exit();
-	  };
-
-	  /**
-	   * Get or set the map interactor.
-	   *
-	   * @param {geo.mapInteractor} [arg] If specified, the map interactor to set.
-	   * @returns {geo.mapInteractor|this} The current map interactor or the map
-	   *    object.
-	   */
-	  this.interactor = function (arg) {
-	    if (arg === undefined) {
-	      return m_interactor;
-	    }
-	    if (m_interactor && m_interactor !== arg) {
-	      m_interactor.destroy();
-	    }
-	    m_interactor = arg;
-
-	    // this makes it possible to set a null interactor
-	    // i.e. map.interactor(null);
-	    if (m_interactor) {
-	      /* If we set a map interactor, make sure we have a tabindex */
-	      if (!m_node.attr('tabindex')) {
-	        m_node.attr('tabindex', 0);
-	      }
-	      m_interactor.map(m_this);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get or set the min/max zoom range.
-	   *
-	   * @param {object} [arg] The zoom range.
-	   * @param {number} [arg.min] The minimum zoom level.
-	   * @param {number} [arg.max] The maximum zoom level.
-	   * @param {boolean} [noRefresh] If `true`, don't update the map if the zoom
-	   *    level has changed.
-	   * @returns {object|this} The current zoom range or the map object.  The
-	   *    `min` value is the minimum value that the map can go to based on the
-	   *    current dimensions and settings, the `origMin` value is the value that
-	   *    was specified via this function or when the map was created.
-	   */
-	  this.zoomRange = function (arg, noRefresh) {
-	    if (arg === undefined) {
-	      return $.extend({}, m_validZoomRange);
-	    }
-	    if (arg.max !== undefined) {
-	      m_validZoomRange.max = arg.max;
-	    }
-	    if (arg.min !== undefined) {
-	      m_validZoomRange.min = m_validZoomRange.origMin = arg.min;
-	    }
-	    reset_minimum_zoom();
-	    if (!noRefresh) {
-	      m_this.zoom(m_zoom);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the current transition or start an animated zoom/pan/rotate.  If a
-	   * second transition is requested while a transition is already in progress,
-	   * a new transition is created that is functionally from wherever the map has
-	   * moved to (possibly partway through the first transition) going to the end
-	   * point of the new transition.
-	   *
-	   * @param {object} [opts] Options for a transition, or `undefined` to get the
-	   *    current transition.
-	   * @param {geo.geoPosition} [opts.center] A new map center.
-	   * @param {number} [opts.zoom] A new map zoom level.
-	   * @param {geo.geoPosition} [opts.zoomOrigin] An origin to use when zooming
-	   *    to a new zoom level.
-	   * @param {number} [opts.rotation] A new map rotation.
-	   * @param {number} [opts.duration=1000] Transition duration in milliseconds.
-	   * @param {function} [opts.ease] Easing function for the transition.  This is
-	   *    in the style of a d3 easing function.
-	   * @param {function} [opts.interp] Function to use when interpolating
-	   *    between values.  This gets passed two arrays, the start and end values
-	   *    for [`x`, `y`, `z` or `zoom`, `rotation`], and returns a function that,
-	   *    when passed a time value returns an array of the interpolated [`x`,
-	   *    `y`, `z` or `zoom`, `rotation`] values.
-	   * @param {boolean} [opts.zCoord] If `true`, convert zoom values to z values
-	   *    for interpolation.
-	   * @param {function} [opts.done] If specified, call this function when a
-	   *    transition completes.  The function is called with an object that
-	   *    contains `cancel`: a boolean if the transition was canceled, `source`:
-	   *    a value based on what canceled a transition, `transition`: the current
-	   *    transition that just completed, `next`: a boolean if another transition
-	   *    follows immediately.
-	   * @param {string|geo.transform|null} [gcs] Input gcs.  `undefined` to use
-	   *    the interface gcs, `null` to use the map gcs, or any other transform.
-	   *    Applies only to `opts.center` and to converting zoom values to height,
-	   *    if specified.
-	   * @param {number} [animTime] The animation frame time (from a
-	   *    `window.requestAnimationFrame` callback).  Used if a new transition is
-	   *    requested because the current transition has completed to keep things
-	   *    synchronized.
-	   * @returns {geo.map}
-	   * @fires geo.event.transitionstart
-	   * @fires geo.event.transitionend
-	   * @fires geo.event.transitioncancel
-	   */
-	  this.transition = function (opts, gcs, animTime) {
-
-	    if (opts === undefined) {
-	      return m_transition;
-	    }
-
-	    if (m_transition) {
-	      /* The queued transition needs to combine the current transition's
-	       * endpoint, any other queued transition, and the new transition to be
-	       * complete. */
-	      var transitionEnd = $.extend(true, {}, m_transition.end);
-	      if (transitionEnd.center && m_gcs !== m_ingcs) {
-	        transitionEnd.center = transform.transformCoordinates(
-	          m_gcs, m_ingcs, transitionEnd.center);
-	      }
-	      m_queuedTransition = $.extend(
-	        {}, transitionEnd || {}, m_queuedTransition || {}, opts);
-	      return m_this;
-	    }
-
-	    /* Basic linear interpolation between two values. */
-	    function interp1(p0, p1, t) {
-	      return p0 + (p1 - p0) * t;
-	    }
-	    /**
-	     * Generate an interpolation function that interpolates all array entries.
-	     *
-	     * @param {array} p0 An array of numbers to interpolate from.
-	     * @param {array} p1 An array of numbers to interpolate to.
-	     * @returns {function} A function that, given `t`, returns an array of
-	     *      interpolated values.
-	     * @private
-	     */
-	    function defaultInterp(p0, p1) {
-	      return function (t) {
-	        var result = [];
-	        $.each(p0, function (idx) {
-	          result.push(interp1(p0[idx], p1[idx], t));
-	        });
-	        return result;
-	      };
-	    }
-
-	    var units = m_this.unitsPerPixel(0);
-
-	    // Transform zoom level into z-coordinate and inverse.
-	    function zoom2z(z) {
-	      return vgl.zoomToHeight(z + 1, m_width, m_height) * units;
-	    }
-	    function z2zoom(z) {
-	      return vgl.heightToZoom(z / units, m_width, m_height) - 1;
-	    }
-
-	    var defaultOpts = {
-	      center: undefined,
-	      zoom: m_this.zoom(),
-	      rotation: m_this.rotation(),
-	      duration: 1000,
-	      ease: function (t) {
-	        return t;
-	      },
-	      interp: defaultInterp,
-	      done: null,
-	      zCoord: true
-	    };
-
-	    if (opts.center) {
-	      gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	      opts = $.extend(true, {}, opts);
-	      opts.center = util.normalizeCoordinates(opts.center);
-	      if (gcs !== m_gcs) {
-	        opts.center = transform.transformCoordinates(gcs, m_gcs, opts.center);
-	      }
-	    }
-	    opts = $.extend(true, {}, defaultOpts, opts);
-
-	    m_transition = {
-	      start: {
-	        center: m_this.center(undefined, null),
-	        zoom: m_this.zoom(),
-	        rotation: m_this.rotation()
-	      },
-	      end: {
-	        center: opts.center,
-	        zoom: fix_zoom(opts.zoom),
-	        rotation: fix_rotation(opts.rotation, undefined, true)
-	      },
-	      ease: opts.ease,
-	      zCoord: opts.zCoord,
-	      done: opts.done,
-	      duration: opts.duration,
-	      zoomOrigin: opts.zoomOrigin
-	    };
-
-	    m_transition.interp = opts.interp([
-	      m_transition.start.center.x,
-	      m_transition.start.center.y,
-	      opts.zCoord ? zoom2z(m_transition.start.zoom) : m_transition.start.zoom,
-	      m_transition.start.rotation
-	    ], [
-	      m_transition.end.center ? m_transition.end.center.x : m_transition.start.center.x,
-	      m_transition.end.center ? m_transition.end.center.y : m_transition.start.center.y,
-	      opts.zCoord ? zoom2z(m_transition.end.zoom) : m_transition.end.zoom,
-	      m_transition.end.rotation
-	    ]);
-
-	    /**
-	     * Process an animation from during a transition.
-	     *
-	     * @param {number} time The animation frame time.  Used to ensure multiple
-	     *      transitions are smooth.
-	     * @private
-	     */
-	    function anim(time) {
-	      var done = m_transition.done,
-	          next = m_queuedTransition;
-	      if (m_transition.cancel === true) {
-	        /* Finish cancelling a transition. */
-	        m_this.geoTrigger(geo_event.transitioncancel, opts);
-	        if (done) {
-	          done({
-	            cancel: true,
-	            source: m_transition.cancelSource,
-	            transition: m_transition
-	          });
-	        }
-	        m_transition = null;
-	        /* There will only be a queuedTransition if it was created after this
-	         * transition was cancelled */
-	        if (m_queuedTransition) {
-	          next = m_queuedTransition;
-	          m_queuedTransition = null;
-	          m_this.transition(next, undefined, time);
-	        }
-	        return;
-	      }
-
-	      if (!m_transition.start.time) {
-	        m_transition.start.time = time;
-	        m_transition.end.time = time + opts.duration;
-	      }
-	      m_transition.time = time - m_transition.start.time;
-	      if (time >= m_transition.end.time || next) {
-	        if (!next) {
-	          if (m_transition.end.center) {
-	            var needZoom = m_zoom !== fix_zoom(m_transition.end.zoom);
-	            m_this.center(m_transition.end.center, null, needZoom, needZoom);
-	          }
-	          m_this.zoom(m_transition.end.zoom, m_transition.zoomOrigin);
-	          m_this.rotation(fix_rotation(m_transition.end.rotation));
-	        }
-
-	        m_this.geoTrigger(geo_event.transitionend, opts);
-
-	        if (done) {
-	          done({next: !!next});
-	        }
-
-	        m_transition = null;
-	        if (m_queuedTransition) {
-	          next = m_queuedTransition;
-	          m_queuedTransition = null;
-	          m_this.transition(next, undefined, time);
-	        }
-
-	        return;
-	      }
-
-	      var z = m_transition.ease(
-	        (time - m_transition.start.time) / opts.duration
-	      );
-
-	      var p = m_transition.interp(z);
-	      if (m_transition.zCoord) {
-	        p[2] = z2zoom(p[2]);
-	      }
-	      if (fix_zoom(p[2], true) === m_zoom) {
-	        m_this.center({
-	          x: p[0],
-	          y: p[1]
-	        }, null, true, true);
-	      } else {
-	        m_center = m_this.gcsToWorld({x: p[0], y: p[1]}, null, true, true);
-	        m_this.zoom(p[2], m_transition.zoomOrigin, true);
-	      }
-	      m_this.rotation(p[3], undefined, true);
-
-	      m_this.scheduleAnimationFrame(anim);
-	    }
-
-	    m_this.geoTrigger(geo_event.transitionstart, opts);
-
-	    if (geo_event.cancelNavigation) {
-	      m_transition = null;
-	      m_this.geoTrigger(geo_event.transitionend, opts);
-	      return m_this;
-	    } else if (geo_event.cancelAnimation) {
-	      // run the navigation synchronously
-	      opts.duration = 0;
-	      anim(0);
-	    } else if (animTime) {
-	      anim(animTime);
-	    } else {
-	      m_this.scheduleAnimationFrame(anim);
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Cancel any existing transition.  The transition will send a cancel event
-	   * at the next animation frame, but no further activity occurs.
-	   *
-	   * @param {string} [source] Optional cause of the cancel.  This can be any
-	   *    value, but something like `(method name).(action)` is recommended to
-	   *    allow other functions to determine the source and cause of the
-	   *    transition being canceled.
-	   * @returns {boolean} `true` if a transition was in progress.
-	   * @fires geo.event.transitioncancel
-	   */
-	  this.transitionCancel = function (source) {
-	    if (m_transition && (m_transition.cancel !== true || m_queuedTransition)) {
-	      m_transition.cancel = true;
-	      m_transition.cancelSource = source || m_transition.cancelSource || '';
-	      m_queuedTransition = null;
-	      return true;
-	    }
-	    return false;
-	  };
-
-	  /**
-	   * Get/set the locations of the current map edges.  When set, the left-top
-	   * and right-bottom corners are transformed to the map's gcs and then used
-	   * to set the bounds.
-	   *
-	   * @param {geo.geoBounds} [bds] The requested map bounds.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.  If setting the
-	   *    bounds, they are converted from this gcs to the map projection.  The
-	   *    returned bounds are converted from the map projection to this gcs.
-	   * @returns {geo.geoBounds} The actual new map bounds.
-	   */
-	  this.bounds = function (bds, gcs) {
-	    var nav;
-
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    if (bds !== undefined) {
-	      if (gcs !== m_gcs) {
-	        var trans = transform.transformCoordinates(gcs, m_gcs, [{
-	          x: bds.left, y: bds.top}, {x: bds.right, y: bds.bottom}]);
-	        bds = {
-	          left: trans[0].x,
-	          top: trans[0].y,
-	          right: trans[1].x,
-	          bottom: trans[1].y
-	        };
-	      }
-	      bds = fix_bounds(bds, m_rotation);
-	      nav = m_this.zoomAndCenterFromBounds(bds, m_rotation, null);
-
-	      // This might have consequences in terms of bounds/zoom clamping.
-	      // What behavior do we expect from this method in that case?
-	      m_this.zoom(nav.zoom);
-	      m_this.center(nav.center, null);
-	    }
-
-	    return m_this.boundsFromZoomAndCenter(m_zoom, m_center, m_rotation, gcs,
-	                                          true);
-	  };
-
-	  /**
-	   * Get/set the maximum view area of the map.  If the map wraps, this is the
-	   * unwrapped area.
-	   *
-	   * @param {geo.geoBounds} [bounds] The map bounds.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.  If setting the
-	   *    bounds, they are converted from this gcs to the map projection.  The
-	   *    returned bounds are converted from the map projection to this gcs.
-	   * @returns {geo.geoBounds|this} The map maximum bounds or the map object.
-	   */
-	  this.maxBounds = function (bounds, gcs) {
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    if (bounds === undefined) {
-	      return {
-	        left: transform.transformCoordinates(m_gcs, gcs, {
-	          x: m_maxBounds.left, y: 0}).x,
-	        right: transform.transformCoordinates(m_gcs, gcs, {
-	          x: m_maxBounds.right, y: 0}).x,
-	        bottom: transform.transformCoordinates(m_gcs, gcs, {
-	          x: 0, y: m_maxBounds.bottom}).y,
-	        top: transform.transformCoordinates(m_gcs, gcs, {
-	          x: 0, y: m_maxBounds.top}).y
-	      };
-	    }
-	    var cx = ((bounds.left || 0) + (bounds.right || 0)) / 2,
-	        cy = ((bounds.bottom || 0) + (bounds.top || 0)) / 2;
-	    if (bounds.left !== undefined) {
-	      m_maxBounds.left = transform.transformCoordinates(gcs, m_gcs, {
-	        x: bounds.left, y: cy}).x;
-	    }
-	    if (bounds.right !== undefined) {
-	      m_maxBounds.right = transform.transformCoordinates(gcs, m_gcs, {
-	        x: bounds.right, y: cy}).x;
-	    }
-	    if (bounds.bottom !== undefined) {
-	      m_maxBounds.bottom = transform.transformCoordinates(gcs, m_gcs, {
-	        x: cx, y: bounds.bottom}).y;
-	    }
-	    if (bounds.top !== undefined) {
-	      m_maxBounds.top = transform.transformCoordinates(gcs, m_gcs, {
-	        x: cx, y: bounds.top}).y;
-	    }
-	    reset_minimum_zoom();
-	    m_this.zoom(m_zoom);
-	    m_this.pan({x: 0, y: 0});
-	    return this;
-	  };
-
-	  /**
-	   * Get the center zoom level necessary to display the given bounds.
-	   *
-	   * @param {geo.geoBounds} bounds The requested map bounds.  `right` must be
-	   *    greater than `left` and `bottom` must be greater than `top` in the
-	   *    map's gcs (after conversion from the provided gcs).
-	   * @param {number} rotation Rotation in clockwise radians.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @returns {geo.zoomAndCenter}
-	   */
-	  this.zoomAndCenterFromBounds = function (bounds, rotation, gcs) {
-	    var center, zoom;
-
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    if (gcs !== m_gcs) {
-	      var trans = transform.transformCoordinates(gcs, m_gcs, [{
-	        x: bounds.left, y: bounds.top}, {x: bounds.right, y: bounds.bottom}]);
-	      bounds = {
-	        left: trans[0].x,
-	        top: trans[0].y,
-	        right: trans[1].x,
-	        bottom: trans[1].y
-	      };
-	    }
-	    if (bounds.left >= bounds.right || bounds.bottom >= bounds.top) {
-	      throw new Error('Invalid bounds provided');
-	    }
-
-	    // calculate the zoom to fit the bounds
-	    zoom = fix_zoom(calculate_zoom(bounds, rotation));
-
-	    // clamp bounds if necessary
-	    bounds = fix_bounds(bounds, rotation);
-
-	    /* This relies on having the map projection coordinates be uniform
-	     * regardless of location.  If not, the center will not be correct. */
-	    // calculate new center
-	    center = {
-	      x: (bounds.left + bounds.right) / 2 - m_origin.x,
-	      y: (bounds.top + bounds.bottom) / 2 - m_origin.y
-	    };
-	    if (gcs !== m_gcs) {
-	      center = transform.transformCoordinates(m_gcs, gcs, center);
-	    }
-	    return {
-	      zoom: zoom,
-	      center: center
-	    };
-	  };
-
-	  /**
-	   * Get the bounds that will be displayed with the given zoom and center.
-	   *
-	   * Note: the bounds may not have the requested zoom and center due to map
-	   * restrictions.
-	   *
-	   * @param {number} zoom The requested zoom level.
-	   * @param {geo.geoPosition} center The requested center.
-	   * @param {number} rotation The requested rotation in clockwise radians.
-	   * @param {string|geo.transform|null} [gcs] `undefined` to use the interface
-	   *    gcs, `null` to use the map gcs, or any other transform.
-	   * @param {boolean} ignoreDiscreteZoom If `true`, ignore the `discreteZoom`
-	   *    option when determining the new view.
-	   * @param {boolean} [ignoreClampBounds] If `true` and `clampBoundsX` or
-	   *    `clampBoundsY` is set, allow the bounds to be less clamped.
-	   *    The map's `maxBounds` can be shifted so that they lie no further than
-	   *    the center of the bounds (rather than being forced to be at the edge).
-	   * @returns {geo.geoBounds}
-	   */
-	  this.boundsFromZoomAndCenter = function (zoom, center, rotation, gcs,
-	        ignoreDiscreteZoom, ignoreClampBounds) {
-	    var width, height, halfw, halfh, bounds, units;
-
-	    gcs = (gcs === null ? m_gcs : (gcs === undefined ? m_ingcs : gcs));
-	    // preprocess the arguments
-	    zoom = fix_zoom(zoom, ignoreDiscreteZoom);
-	    units = m_this.unitsPerPixel(zoom);
-	    center = m_this.gcsToWorld(center, null);
-
-	    // get half the width and height in world coordinates
-	    width = m_width * units;
-	    height = m_height * units;
-	    halfw = width / 2;
-	    halfh = height / 2;
-
-	    // calculate the bounds.  This is only valid if the map projection has
-	    // uniform units in each direction.  If not, then worldToGcs should be
-	    // used.
-
-	    if (rotation) {
-	      center.x += m_origin.x;
-	      center.y += m_origin.y;
-	      bounds = rotate_bounds_center(
-	        center, {width: width, height: height}, rotation);
-	      // correct the bounds when clamping is enabled
-	      bounds.width = width;
-	      bounds.height = height;
-	      bounds = fix_bounds(bounds, rotation, undefined, ignoreClampBounds);
-	    } else {
-	      bounds = {
-	        left: center.x - halfw + m_origin.x,
-	        right: center.x + halfw + m_origin.x,
-	        bottom: center.y - halfh + m_origin.y,
-	        top: center.y + halfh + m_origin.y
-	      };
-	      // correct the bounds when clamping is enabled
-	      bounds = fix_bounds(bounds, 0, undefined, ignoreClampBounds);
-	    }
-	    if (gcs !== m_gcs) {
-	      var bds = transform.transformCoordinates(
-	        m_gcs, gcs,
-	        [[bounds.left, bounds.top], [bounds.right, bounds.bottom]]);
-	      bounds = {
-	        left: bds[0][0], top: bds[0][1], right: bds[1][0], bottom: bds[1][1]
-	      };
-	    }
-	    /* Add the original width and height of the viewport before rotation. */
-	    bounds.width = width;
-	    bounds.height = height;
-	    return bounds;
-	  };
-
-	  /**
-	   * Get/set the discrete zoom flag.  If `true`, the map will snap to integer
-	   * zoom levels.
-	   *
-	   * @param {boolean} [discreteZoom] If specified, the new discrete zoom flag.
-	   * @returns {boolean|this} The current discrete zoom flag or the map object.
-	   */
-	  this.discreteZoom = function (discreteZoom) {
-	    if (discreteZoom === undefined) {
-	      return m_discreteZoom;
-	    }
-	    discreteZoom = discreteZoom ? true : false;
-	    if (m_discreteZoom !== discreteZoom) {
-	      m_discreteZoom = discreteZoom;
-	      if (m_discreteZoom) {
-	        m_this.zoom(Math.round(m_this.zoom()));
-	      }
-	      m_this.interactor().options({discreteZoom: m_discreteZoom});
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the layers contained in the map.
-	   * Alias of {@linkcode geo.sceneObject#children}.
-	   * @method
-	   */
-	  this.layers = this.children;
-
-	  /**
-	   * Update the attribution notice displayed on the bottom right corner of
-	   * the map.  The content of this notice is managed by individual layers.
-	   * This method queries all of the visible layers and joins the individual
-	   * attribution notices into a single element.  By default, this method
-	   * is called on each of the following events:
-	   *
-	   *   * geo.event.layerAdd
-	   *   * geo.event.layerRemove
-	   *
-	   * In addition, layers should call this method when their own attribution
-	   * notices have changed.  Users, in general, should not need to call this.
-	   *
-	   * @returns {this} Chainable.
-	   */
-	  this.updateAttribution = function () {
-	    // clear any existing attribution content
-	    m_this.node().find('.geo-attribution').remove();
-
-	    // generate a new attribution node
-	    var $a = $('<div/>')
-	      .addClass('geo-attribution')
-	      .on('mousedown', function (evt) {
-	        evt.stopPropagation();
-	      });
-
-	    // append content from each layer
-	    m_this.children().forEach(function (layer) {
-	      var content = layer.attribution();
-	      if (content) {
-	        $('<span/>')
-	          .addClass('geo-attribution-layer')
-	          .html(content)
-	          .appendTo($a);
-	      }
-	    });
-
-	    /* Only add the element if there is at least one attribution */
-	    if ($('span', $a).length) {
-	      $a.appendTo(m_this.node());
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get a screen-shot of all or some of the canvas layers of map.  Note that
-	   * webGL layers are rerendered, even if
-	   *   `window.contextPreserveDrawingBuffer = true;`
-	   * is set before creating the map object.  Chrome, at least, may not keep the
-	   * drawing buffers if the tab loses focus (and returning focus won't
-	   * necessarily rerender).
-	   *
-	   * @param {geo.layer|geo.layer[]|false|object} [layers] Either a layer, a
-	   *    list of layers, falsy to get all layers, or an object that contains
-	   *    optional values of `layers`, `type`, `encoderOptions`, and additional
-	   *    values listed in the `opts` parameter (this last form allows a single
-	   *    argument for the function).
-	   * @param {string} [type='image/png'] See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toDataURL
-	   *    canvas.toDataURL}.  Use `'canvas'` to return the canvas element (this
-	   *    can be used to get the results as a blob, which can be faster for some
-	   *    operations but is not supported as widely).
-	   * @param {number} [encoderOptions] See {@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toDataURL
-	   *    canvas.toDataURL}.
-	   * @param {object} [opts] Additional screenshot options.
-	   * @param {false|string|CanvasRenderingContext2D.fillStyle}
-	   *    [opts.background='white'] If `false` or `null`, don't prefill the
-	   *    background.  Otherwise, a css color or
-	   *    `CanvasRenderingContext2D.fillStyle` to fill the initial canvas.  This
-	   *    could match the background of the browser page, for instance.
-	   * @param {boolean|'idle'} [opts.wait=false] If `'idle'`, wait for the map to
-	   *    be idle and one additional animation frame to occur.  If truthy, wait
-	   *    for an animation frame to occur.  Otherwise, take the screenshot as
-	   *    soon as possible.
-	   * @param {boolean|null} [opts.attribution=null] If `null` or unspecified,
-	   *    include the attribution only if all layers are used.  If false, never
-	   *    include the attribution.  If `true`, always include it.
-	   * @returns {deferred} A jQuery Deferred object.  The done function receives
-	   *    either a data URL or an `HTMLCanvasElement` with the result.
-	   */
-	  this.screenshot = function (layers, type, encoderOptions, opts) {
-	    var defer;
-
-	    if (layers && !Array.isArray(layers) && !layers.renderer) {
-	      type = type || layers.type;
-	      encoderOptions = encoderOptions || layers.encoderOptions;
-	      opts = opts || layers;
-	      layers = layers.layers;
-	    }
-	    opts = opts || {};
-	    /* if asked to wait, return a Deferred that will do so, calling the
-	     * screenshot function without waiting once it is done. */
-	    if (opts.wait) {
-	      var optsWithoutWait = $.extend({}, opts, {wait: false});
-	      defer = $.Deferred();
-
-	      var waitForRAF = function () {
-	        window.requestAnimationFrame(function () {
-	          defer.resolve();
-	        });
-	      };
-
-	      if (opts.wait === 'idle') {
-	        m_this.onIdle(waitForRAF);
-	      } else {
-	        waitForRAF();
-	      }
-	      return defer.then(function () {
-	        return m_this.screenshot(layers, type, encoderOptions, optsWithoutWait);
-	      });
-	    }
-	    defer = $.when();
-	    // ensure layers is a list of all the layers we want to include
-	    if (!layers) {
-	      layers = m_this.layers();
-	      if (opts.attribution === null || opts.attribution === undefined) {
-	        opts.attribution = true;
-	      }
-	    } else if (!Array.isArray(layers)) {
-	      layers = [layers];
-	    }
-	    // filter to only the included layers
-	    layers = layers.filter(function (l) { return m_this.layers().indexOf(l) >= 0; });
-	    // sort layers by z-index
-	    layers = layers.sort(
-	      function (a, b) { return (a.zIndex() - b.zIndex()); }
-	    );
-	    // create a new canvas element
-	    var result = document.createElement('canvas');
-	    result.width = m_width;
-	    result.height = m_height;
-	    var context = result.getContext('2d');
-	    // optionally start with a white or custom background
-	    if (opts.background !== false && opts.background !== null) {
-	      var background = opts.background;
-	      if (opts.background === undefined) {
-	        /* If we are using the map's current background, start with white as a
-	         * fallback, then fill with the backgrounds of all parents and the map
-	         * node.  Since each may be partially transparent, this is required to
-	         * match the web page's color.  It won't use background patterns. */
-	        context.fillStyle = 'white';
-	        context.fillRect(0, 0, result.width, result.height);
-	        m_this.node().parents().get().reverse().forEach(function (elem) {
-	          background = window.getComputedStyle(elem).backgroundColor;
-	          if (background && background !== 'transparent') {
-	            context.fillStyle = background;
-	            context.fillRect(0, 0, result.width, result.height);
-	          }
-	        });
-	        background = window.getComputedStyle(m_this.node()[0]).backgroundColor;
-	      }
-	      if (background && background !== 'transparent') {
-	        context.fillStyle = background;
-	        context.fillRect(0, 0, result.width, result.height);
-	      }
-	    }
-	    // for each layer, copy to our new canvas.
-	    layers.forEach(function (layer) {
-	      var opacity = layer.opacity();
-	      if (opacity <= 0) {
-	        return;
-	      }
-	      layer.node().children('canvas').each(function () {
-	        var canvasElem = $(this);
-	        defer = defer.then(function () {
-	          if (layer.renderer().api() === 'vgl') {
-	            layer.renderer()._renderFrame();
-	          }
-	          drawLayerImageToContext(context, opacity, canvasElem, canvasElem[0]);
-	        });
-	      });
-	      if (layer.node().children().not('canvas').length) {
-	        defer = defer.then(function () {
-	          return util.htmlToImage(layer.node(), 1).done(function (img) {
-	            drawLayerImageToContext(context, 1, $([]), img);
-	          });
-	        });
-	      }
-	    });
-	    if (opts.attribution) {
-	      m_this.node().find('.geo-attribution').each(function () {
-	        var attrElem = $(this);
-	        defer = defer.then(function () {
-	          return util.htmlToImage(attrElem, 1).done(function (img) {
-	            drawLayerImageToContext(context, 1, $([]), img);
-	          });
-	        });
-	      });
-	    }
-	    defer = defer.then(function () {
-	      var canvas = result;
-	      if (type !== 'canvas') {
-	        result = result.toDataURL(type, encoderOptions);
-	      }
-	      m_this.geoTrigger(geo_event.screenshot.ready, {
-	        canvas: canvas,
-	        screenshot: result
-	      });
-	      return result;
-	    });
-	    return defer;
-	  };
-
-	  /**
-	   * Instead of each function using `window.requestAnimationFrame`, schedule
-	   * all such frames through this function.  This allows the callbacks to be
-	   * reordered or removed as needed and reduces overhead in Chrome a small
-	   * amount.  Also, if the animation queue is shared between map instances, the
-	   * callbacks will be called in a single time slice, providing better
-	   * synchronization.
-	   *
-	   * @param {function} callback Function to call during the animation frame.
-	   *    It is called with an animation epoch, exactly as
-	   *    `requestAnimationFrame`.
-	   * @param {boolean|'remove'} [action=false] Falsy to only add the callback if
-	   *    it is not already scheduled.  `'remove'` to remove the callback (use
-	   *    this instead of `cancelAnimationFrame`).  Any other truthy value moves
-	   *    the callback to the end of the list.
-	   * @returns {integer} An integer as returned by
-	   *    `window.requestAnimationFrame`.
-	   */
-	  this.scheduleAnimationFrame = function (callback, action) {
-	    if (!m_animationQueue.length) {
-	      /* By refering to requestAnimationFrame as a property of window, versus
-	       * explicitly using window.requestAnimationFrame, we prevent the
-	       * stripping of 'window' off of the reference and allow our tests to
-	       * override this if needed. */
-	      m_animationQueue.push(window['requestAnimationFrame'](processAnimationFrame));
-	    }
-	    var pos = m_animationQueue.indexOf(callback, 1);
-	    if (pos >= 0) {
-	      if (!action) {
-	        return;
-	      }
-	      m_animationQueue.splice(pos, 1);
-	      if (action === 'remove') {
-	        return;
-	      }
-	    }
-	    m_animationQueue.push(callback);
-	    return m_animationQueue[0];
-	  };
-
-	  /**
-	   * Draw a layer image to a canvas context.  The layer's opacity and transform
-	   * are applied.  This is used as part of making a screenshot.
-	   *
-	   * @param {context} context The 2d canvas context to draw into.
-	   * @param {number} opacity The opacity in the range [0, 1].
-	   * @param {object} elem A jQuery element that might have a transform.
-	   * @param {HTMLImageObject} img The image or canvas to draw to the canvas.
-	   * @private
-	   */
-	  function drawLayerImageToContext(context, opacity, elem, img) {
-	    context.globalAlpha = opacity;
-	    var transform = elem.css('transform');
-	    // if the canvas is being transformed, apply the same transformation
-	    if (transform && transform.substr(0, 7) === 'matrix(') {
-	      context.setTransform.apply(context, transform.substr(7, transform.length - 8).split(',').map(parseFloat));
-	    } else {
-	      context.setTransform(1, 0, 0, 1, 0, 0);
-	    }
-	    context.drawImage(img, 0, 0);
-	  }
-
-	  /**
-	   * Sevice the callback during an animation frame.  This uses splice to modify
-	   * the `animationQueue` to allow multiple map instances to share the queue.
-	   * @private
-	   */
-	  function processAnimationFrame() {
-	    var queue = m_animationQueue.splice(0, m_animationQueue.length);
-
-	    /* The first entry is the reference to the window.requestAnimationFrame. */
-	    for (var i = 1; i < queue.length; i += 1) {
-	      queue[i].apply(this, arguments);
-	    }
-	  }
-
-	  /*
-	   * The following are some private methods for interacting with the camera.
-	   * In order to hide the complexity of dealing with map aspect ratios,
-	   * clamping behavior, resetting zoom levels on resize, etc. from the
-	   * layers, the map handles camera movements directly.  This requires
-	   * passing all camera movement events through the map initially.  The
-	   * map uses these methods to fix up the events according to the constraints
-	   * of the display and passes the event to the layers.
-	   */
-	  /**
-	   * Calculate the scaling factor to fit the given map bounds into the viewport
-	   * with the correct aspect ratio.
-	   *
-	   * @param {geo.geoBounds} bounds A desired bounds.
-	   * @returns {object} Multiplicative aspect ratio correction with x and y
-	   *    values.
-	   * @private
-	   */
-	  function camera_scaling(bounds) {
-	    var width = bounds.right - bounds.left,
-	        height = bounds.top - bounds.bottom,
-	        ar_bds = Math.abs(width / height),
-	        ar_vp = m_width / m_height,
-	        sclx, scly;
-
-	    if (ar_bds > ar_vp) {
-	      // fit left and right
-	      sclx = 1;
-
-	      // grow top and bottom
-	      scly = ar_bds / ar_vp;
-	    } else {
-	      // fit top and bottom
-	      scly = 1;
-
-	      // grow left and right
-	      sclx = ar_vp / ar_bds;
-	    }
-	    return {x: sclx, y: scly};
-	  }
-
-	  /**
-	   * Adjust a set of bounds based on a rotation.  If a rotation exists, the
-	   * returned bounds are typically larger than the source bounds.
-	   *
-	   * @param {geo.geoBounds} bounds Bounds to adjust.
-	   * @param {number} rotation Angle in radians (positive is clockwise).
-	   * @returns {geo.geoBounds}
-	   * @private
-	   */
-	  function rotate_bounds(bounds, rotation) {
-	    if (rotation) {
-	      var center = {
-	        x: (bounds.left + bounds.right) / 2,
-	        y: (bounds.top + bounds.bottom) / 2
-	      };
-	      var size = {
-	        width: Math.abs(bounds.left - bounds.right),
-	        height: Math.abs(bounds.top - bounds.bottom)
-	      };
-	      bounds = rotate_bounds_center(center, size, rotation);
-	    }
-	    return bounds;
-	  }
-
-	  /**
-	   * Generate a set of bounds based on a center point, a width and height, and
-	   * a rotation.
-	   *
-	   * @param {geo.geoPosition} center
-	   * @param {object} size Size of the screen in map gcs.
-	   * @param {number} size.width
-	   * @param {number} size.height
-	   * @param {number} rotation Angle in radians (positive is clockwise).
-	   * @returns {geo.geoBounds}
-	   * @private
-	   */
-	  function rotate_bounds_center(center, size, rotation) {
-	    // calculate the half width and height
-	    var width = size.width / 2, height = size.height / 2;
-	    var sinr = Math.sin(rotation), cosr = Math.cos(rotation);
-	    var ul = {}, ur = {}, ll = {}, lr = {};
-	    ul.x = center.x + (-width) * cosr - (-height) * sinr;
-	    ul.y = center.y + (-width) * sinr + (-height) * cosr;
-	    ur.x = center.x + width * cosr - (-height) * sinr;
-	    ur.y = center.y + width * sinr + (-height) * cosr;
-	    ll.x = center.x + (-width) * cosr - height * sinr;
-	    ll.y = center.y + (-width) * sinr + height * cosr;
-	    lr.x = center.x + width * cosr - height * sinr;
-	    lr.y = center.y + width * sinr + height * cosr;
-	    return {
-	      left: Math.min(ul.x, ur.x, ll.x, lr.x),
-	      right: Math.max(ul.x, ur.x, ll.x, lr.x),
-	      bottom: Math.min(ul.y, ur.y, ll.y, lr.y),
-	      top: Math.max(ul.y, ur.y, ll.y, lr.y)
-	    };
-	  }
-
-	  /**
-	   * Calculate the minimum zoom level to fit the given bounds inside the view
-	   * port using the view port size, the given bounds, and the number of units
-	   * per pixel.  The method sets the valid zoom bounds as well as the current
-	   * zoom level to be within that range.
-	   *
-	   * @param {geo.geoBounds} bounds Bounds to fit to the screen.
-	   * @param {number} [rotation] Rotation in radians.  If unspecified, use the
-	   *    current map rotation.
-	   * @returns {number} The necessary zoom level.
-	   * @private
-	   */
-	  function calculate_zoom(bounds, rotation) {
-	    if (rotation === undefined) {
-	      rotation = m_rotation;
-	    }
-	    bounds = rotate_bounds(bounds, rotation);
-	    // compare the aspect ratios of the viewport and bounds
-	    var scl = camera_scaling(bounds), z;
-
-	    if (scl.y > scl.x) {
-	      // left to right matches exactly
-	      // center map vertically and have blank borders on the
-	      // top and bottom (or repeat tiles)
-	      z = -Math.log2(
-	        Math.abs(bounds.right - bounds.left) * scl.x /
-	        (m_width * m_unitsPerPixel)
-	      );
-	    } else {
-	      // top to bottom matches exactly, blank border on the
-	      // left and right (or repeat tiles)
-	      z = -Math.log2(
-	        Math.abs(bounds.top - bounds.bottom) * scl.y /
-	        (m_height * m_unitsPerPixel)
-	      );
-	    }
-	    return z;
-	  }
-
-	  /**
-	   * Reset the minimum zoom level given the current window size.
-	   * @private
-	   */
-	  function reset_minimum_zoom() {
-	    if (m_clampZoom) {
-	      m_validZoomRange.min = Math.max(
-	          m_validZoomRange.origMin, calculate_zoom(m_maxBounds));
-	    } else {
-	      m_validZoomRange.min = m_validZoomRange.origMin;
-	    }
-	  }
-
-	  /**
-	   * Return the nearest valid zoom level to the requested zoom.
-	   * @param {number} zoom A zoom level to adjust to current settings
-	   * @param {boolean} ignoreDiscreteZoom If `true`, ignore the `discreteZoom`
-	   *    option when determining the new view.
-	   * @returns {number} The zoom level clamped to the allowed zoom range and
-	   *    with other settings applied.
-	   * @private
-	   */
-	  function fix_zoom(zoom, ignoreDiscreteZoom) {
-	    zoom = Math.round(zoom * 1e6) / 1e6;
-	    zoom = Math.max(
-	      Math.min(
-	        m_validZoomRange.max,
-	        zoom
-	      ),
-	      m_validZoomRange.min
-	    );
-	    if (m_discreteZoom && !ignoreDiscreteZoom) {
-	      zoom = Math.round(zoom);
-	      if (zoom < m_validZoomRange.min) {
-	        zoom = Math.ceil(m_validZoomRange.min);
-	      }
-	    }
-	    return zoom;
-	  }
-
-	  /**
-	   * Return a valid rotation angle.
-	   *
-	   * @param {number} rotation Proposed rotation.
-	   * @param {boolean} ignoreRotationFunc If truthy and rotations are allowed,
-	   *    allow any rotation.  Otherwise, the rotation is passed through the
-	   *    `allowRotation` function.
-	   * @param {boolean} noRangeLimit If falsy, ensure that the rotation is in the
-	   *    range [0, 2*PI).  If it is very close to zero, it is snapped to zero.
-	   *    If true, the rotation can have any value.
-	   * @returns {number} the validated rotation
-	   * @private
-	   */
-	  function fix_rotation(rotation, ignoreRotationFunc, noRangeLimit) {
-	    if (!m_allowRotation) {
-	      return 0;
-	    }
-	    if (!ignoreRotationFunc && typeof m_allowRotation === 'function') {
-	      rotation = m_allowRotation(rotation);
-	    }
-	    /* Ensure that the rotation is in the range [0, 2pi) */
-	    if (!noRangeLimit) {
-	      var range = Math.PI * 2;
-	      rotation = (rotation % range) + (rotation >= 0 ? 0 : range);
-	      if (Math.min(Math.abs(rotation), Math.abs(rotation - range)) < 0.00001) {
-	        rotation = 0;
-	      }
-	    }
-	    return rotation;
-	  }
-
-	  /**
-	   * Return the nearest valid bounds maintaining the width and height.  Does
-	   * nothing if `clampBoundsX` and `clampBoundsY` are false.  If a delta is
-	   * specified, will only clamp if the out-of-bounds condition would be worse.
-	   * If `ignoreClampBounds` is true, clamping is applied only to prevent more
-	   * than half the image from being off screen.
-	   *
-	   * @param {geo.geoBounds} bounds The new bounds to apply in map gcs
-	   *    coordinates.
-	   * @param {number} [rotation] The angle of rotation in radians.  May be falsy
-	   *    to have no rotation.
-	   * @param {object} [delta] If present, the shift in position in screen
-	   *    coordinates.  Bounds will only be adjusted if the bounds would be
-	   *    more out of position after the shift.
-	   * @param {number} delta.x
-	   * @param {number} delta.y
-	   * @param {number} delta.unit Units per pixel at the current zoom level.
-	   * @param {boolean} [ignoreClampBounds] If `true` and `clampBoundsX` or
-	   *    `clampBoundsY` are set, allow the bounds to be less clamped.
-	   *    Specifically, the map's `maxBounds` can be shifted so that they lie no
-	   *    further than the center of the bounds (rather than being forced to be
-	   *    at the edge).
-	   * @returns {geo.geoBounds} The adjusted bounds.  This may be the same object
-	   *    passed in `bounds`.
-	   * @private
-	   */
-	  function fix_bounds(bounds, rotation, delta, ignoreClampBounds) {
-	    if (!m_clampBoundsX && !m_clampBoundsY) {
-	      return bounds;
-	    }
-	    var dx, dy, maxBounds = m_maxBounds;
-	    if (rotation) {
-	      maxBounds = $.extend({}, m_maxBounds);
-	      /* When rotated, expand the maximum bounds so that they will allow the
-	       * corners to be visible.  We know the rotated bounding box, plus the
-	       * original maximum bounds.  To fit the corners of the maximum bounds, we
-	       * can expand the total bounds by the same factor that the rotated
-	       * bounding box is expanded from the non-rotated bounding box (for a
-	       * small rotation, this is sin(rotation) * (original bounding box height)
-	       * in the width).  This feels like appropriate behaviour with one of the
-	       * two bounds clamped.  With both, it seems mildly peculiar. */
-	      var bw = Math.abs(bounds.right - bounds.left),
-	          bh = Math.abs(bounds.top - bounds.bottom),
-	          absinr = Math.abs(Math.sin(rotation)),
-	          abcosr = Math.abs(Math.cos(rotation)),
-	          ow, oh;
-	      if (bounds.width && bounds.height) {
-	        ow = bounds.width;
-	        oh = bounds.height;
-	      } else if (Math.abs(absinr - abcosr) < 0.0005) {
-	        /* If we are close to a 45 degree rotation, it is ill-determined to
-	         * compute the original (pre-rotation) bounds width and height.  In
-	         * this case, assume that we are using the map's aspect ratio. */
-	        if (m_width && m_height) {
-	          var aspect = Math.abs(m_width / m_height);
-	          var fac = Math.pow(1 + Math.pow(aspect, 2), 0.5);
-	          ow = Math.max(bw, bh) / fac;
-	          oh = ow * aspect;
-	        } else {
-	          /* Fallback if we don't have width or height */
-	          ow = bw * abcosr;
-	          oh = bh * absinr;
-	        }
-	      } else {
-	        /* Compute the pre-rotation (original) bounds width and height */
-	        ow = (abcosr * bw - absinr * bh) / (abcosr * abcosr - absinr * absinr);
-	        oh = (abcosr * bh - absinr * bw) / (abcosr * abcosr - absinr * absinr);
-	      }
-	      /* Our maximum bounds are expanded based on the projected length of a
-	       * tilted side of the original bounding box in the rotated bounding box.
-	       * To handle all rotations, take the minimum difference in width or
-	       * height. */
-	      var bdx = bw - Math.max(abcosr * ow, absinr * oh),
-	          bdy = bh - Math.max(abcosr * oh, absinr * ow);
-	      maxBounds.left -= bdx;
-	      maxBounds.right += bdx;
-	      maxBounds.top += bdy;
-	      maxBounds.bottom -= bdy;
-	    }
-	    if (ignoreClampBounds) {
-	      maxBounds = {
-	        left: maxBounds.left - (bounds.right - bounds.left) / 2,
-	        right: maxBounds.right + (bounds.right - bounds.left) / 2,
-	        top: maxBounds.top - (bounds.bottom - bounds.top) / 2,
-	        bottom: maxBounds.bottom + (bounds.bottom - bounds.top) / 2
-	      };
-	    }
-	    if (m_clampBoundsX) {
-	      if (bounds.right - bounds.left > maxBounds.right - maxBounds.left) {
-	        dx = maxBounds.left - ((bounds.right - bounds.left - (
-	          maxBounds.right - maxBounds.left)) / 2) - bounds.left;
-	      } else if (bounds.left < maxBounds.left) {
-	        dx = maxBounds.left - bounds.left;
-	      } else if (bounds.right > maxBounds.right) {
-	        dx = maxBounds.right - bounds.right;
-	      }
-	      if (dx && (!delta || delta.x * dx > 0)) {
-	        if (delta && Math.abs(dx) > Math.abs(delta.x * delta.unit)) {
-	          dx = Math.abs(delta.x * delta.unit) * dx / Math.abs(dx);
-	        }
-	        bounds = {
-	          left: bounds.left += dx,
-	          right: bounds.right += dx,
-	          top: bounds.top,
-	          bottom: bounds.bottom
-	        };
-	      }
-	    }
-	    if (m_clampBoundsY) {
-	      if (bounds.top - bounds.bottom > maxBounds.top - maxBounds.bottom) {
-	        dy = maxBounds.bottom - ((bounds.top - bounds.bottom - (
-	          maxBounds.top - maxBounds.bottom)) / 2) - bounds.bottom;
-	      } else if (bounds.top > maxBounds.top) {
-	        dy = maxBounds.top - bounds.top;
-	      } else if (bounds.bottom < maxBounds.bottom) {
-	        dy = maxBounds.bottom - bounds.bottom;
-	      }
-	      if (dy && (!delta || -delta.y * dy > 0)) {
-	        if (delta && Math.abs(dy) > Math.abs(delta.y * delta.unit)) {
-	          dy = Math.abs(delta.y * delta.unit) * dy / Math.abs(dy);
-	        }
-	        bounds = {
-	          top: bounds.top += dy,
-	          bottom: bounds.bottom += dy,
-	          left: bounds.left,
-	          right: bounds.right
-	        };
-	      }
-	    }
-	    return bounds;
-	  }
-
-	  /**
-	   * Call the camera bounds method with the given bounds, but correct for the
-	   * viewport aspect ratio.
-	   *
-	   * @param {geo.geoBounds} bounds The bounds for the camera.  If a rotation
-	   *    is specified, the bounds need to also contain the map gcs width and
-	   *    height.
-	   * @param {number} [rotation] The map rotation in radians.
-	   * @private
-	   */
-	  function camera_bounds(bounds, rotation) {
-	    m_camera.rotation = rotation || 0;
-	    /* When dealing with rotation, use the original width and height of the
-	     * bounds, as the rotation will have expanded them. */
-	    if (bounds.width && bounds.height && rotation) {
-	      var cx = (bounds.left + bounds.right) / 2,
-	          cy = (bounds.top + bounds.bottom) / 2;
-	      m_camera.viewFromCenterSizeRotation({x: cx, y: cy}, bounds, rotation);
-	    } else {
-	      m_camera.bounds = bounds;
-	    }
-	    /* Update the center to what was set. */
-	    m_center = {
-	      x: (m_camera.bounds.left + m_camera.bounds.right) / 2,
-	      y: (m_camera.bounds.top + m_camera.bounds.bottom) / 2
-	    };
-	  }
-
-	  /**
-	   * Resize the map based on the size of the associated DOM node.
-	   * @private
-	   */
-	  function resizeSelf() {
-	    m_this.size({width: m_node.width(), height: m_node.height()});
-	  }
-
-	  /*
-	   * All the methods are now defined.  From here, we are initializing all
-	   * internal variables and event handlers.
-	   */
-
-	  this._init(arg);
-
-	  // set up drag/drop handling
-	  this.node().on('dragover.geo', function (e) {
-	    var evt = e.originalEvent;
-
-	    if (m_this.fileReader()) {
-	      evt.stopPropagation();
-	      evt.preventDefault();
-	      evt.dataTransfer.dropEffect = 'copy';
-	    }
-	  })
-	  .on('drop.geo', function (e) {
-	    var evt = e.originalEvent, reader = m_this.fileReader(),
-	        i, file;
-
-	    function done() {
-	      m_this.draw();
-	    }
-
-	    if (reader) {
-	      evt.stopPropagation();
-	      evt.preventDefault();
-
-	      for (i = 0; i < evt.dataTransfer.files.length; i += 1) {
-	        file = evt.dataTransfer.files[i];
-	        if (reader.canRead(file)) {
-	          reader.read(file, done); // to do: trigger event on done
-	        }
-	      }
-	    }
-	  });
-
-	  /*
-	   * The map coordinates for the default world map, where c = half
-	   * circumference at equator in meters, o = origin:
-	   *   (-c, c) + o                   (c, c) + o
-	   *            (center.x, center.y) + o            <-- center of viewport
-	   *   (-c, -c) + o                  (c, -c) + o
-	   */
-	  // Set the world origin
-	  m_origin = {x: 0, y: 0};
-
-	  // Fix the zoom level (minimum and initial)
-	  this.zoomRange(arg, true);
-	  m_zoom = fix_zoom(m_zoom);
-	  m_rotation = fix_rotation(m_rotation);
-	  // Now update to the correct center and zoom level
-	  this.center($.extend({}, arg.center || m_center), undefined);
-
-	  if (arg.interactor !== null) {
-	    this.interactor(arg.interactor || mapInteractor({discreteZoom: m_discreteZoom}));
-	  }
-
-	  if (m_autoResize) {
-	    $(window).on('resize', resizeSelf);
-	  }
-
-	  // attach attribution updates to layer events
-	  m_this.geoOn([
-	    geo_event.layerAdd,
-	    geo_event.layerRemove
-	  ], m_this.updateAttribution);
-
-	  return this;
-	};
-
-	/**
-	 * Create a map from an object.  Any errors in the creation
-	 * of the map will result in returning `null`.
-	 *
-	 * @param {geo.map.spec} spec The object specification.
-	 * @returns {geo.map|null}
-	 */
-	map.create = function (spec) {
-	  'use strict';
-
-	  var _map = map(spec),
-	      layer = __webpack_require__(210);
-
-	  /* If the spec is bad, we still end up with an object, but it won't have a
-	   * zoom function */
-	  if (!_map || !_map.zoom) {
-	    console.warn('Could not create map.');
-	    return null;
-	  }
-
-	  spec.data = spec.data || [];
-	  spec.layers = spec.layers || [];
-
-	  spec.layers.forEach(function (l) {
-	    l.data = l.data || spec.data;
-	    l.layer = layer.create(_map, l);
-	  });
-
-	  return _map;
-	};
-
-	inherit(map, sceneObject);
-	module.exports = map;
-
-
-/***/ }),
-/* 237 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerLayer = __webpack_require__(201).registerLayer;
-	var layer = __webpack_require__(210);
-
-	/**
-	 * Create a new instance of class uiLayer
-	 *
-	 * @class geo.gui.uiLayer
-	 * @extends {geo.layer}
-	 * @returns {geo.gui.uiLayer}
-	 */
-	var uiLayer = function (arg) {
-	  'use strict';
-
-	  var createWidget = __webpack_require__(201).createWidget;
-
-	  // The widget stays fixed on the screen.
-	  arg.renderer = 'dom';
-	  arg.sticky = false;
-
-	  if (!(this instanceof uiLayer)) {
-	    return new uiLayer(arg);
-	  }
-	  layer.call(this, arg);
-
-	  var m_this = this,
-	      s_exit = this._exit;
-
-	  /**
-	   * Create a new ui control
-	   *
-	   * @returns {geo.gui.Widget} Will return a new control widget
-	   */
-	  this.createWidget = function (widgetName, arg) {
-	    var newWidget = createWidget(widgetName, m_this, arg);
-
-	    // We only want top level widgets to be a child of the uiLayer
-	    if (!(arg && 'parent' in arg)) {
-	      m_this.addChild(newWidget);
-	    }
-
-	    newWidget._init(arg);
-	    m_this.modified();
-	    return newWidget;
-	  };
-
-	  /**
-	   * Delete a ui control
-	   */
-	  this.deleteWidget = function (widget) {
-	    widget._exit();
-	    m_this.removeChild(widget);
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Free memory and destroy the layer.
-	   */
-	  this._exit = function () {
-	    m_this.children().forEach(function (child) {
-	      m_this.deleteWidget(child);
-	    });
-	    s_exit();
-	  };
-	};
-
-	inherit(uiLayer, layer);
-
-	registerLayer('ui', uiLayer);
-	module.exports = uiLayer;
-
-
-/***/ }),
-/* 238 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = (function () {
-	  'use strict';
-
-	  var $ = __webpack_require__(1);
-	  var inherit = __webpack_require__(8);
-	  var tileLayer = __webpack_require__(239);
-	  var registry = __webpack_require__(201);
-	  var quadFeature = __webpack_require__(223);
-
-	  /**
-	   * Create a new instance of osmLayer.
-	   *
-	   * @class geo.osmLayer
-	   * @extends geo.featureLayer
-	   *
-	   * @param {object} arg - arg can contain following keys: baseUrl,
-	   *        imageFormat (such as png or jpeg), and displayLast
-	   *        (to decide whether or not render tiles from last zoom level).
-	   */
-	  var osmLayer = function (arg) {
-
-	    var imageTile = __webpack_require__(233);
-
-	    if (!(this instanceof osmLayer)) {
-	      return new osmLayer(arg);
-	    }
-	    if (arg.mapOpacity !== undefined && arg.opacity === undefined) {
-	      arg.opacity = arg.mapOpacity;
-	    }
-	    tileLayer.call(this, arg);
-
-	    /* mapOpacity is just another name for the layer opacity. */
-	    this.mapOpacity = this.opacity;
-
-	    /**
-	     * Returns an instantiated imageTile object with the given indices.  This
-	     * method always returns a new tile object.  Use `_getTileCached`
-	     * to use the caching layer.
-	     * @param {object} index The tile index
-	     * @param {number} index.x
-	     * @param {number} index.y
-	     * @param {number} index.level
-	     * @param {object} source The tile index used for constructing the url
-	     * @param {number} source.x
-	     * @param {number} source.y
-	     * @param {number} source.level
-	     * @returns {geo.tile}
-	     */
-	    this._getTile = function (index, source) {
-	      var urlParams = source || index;
-	      return imageTile({
-	        index: index,
-	        size: {x: this._options.tileWidth, y: this._options.tileHeight},
-	        queue: this._queue,
-	        overlap: this._options.tileOverlap,
-	        scale: this._options.tileScale,
-	        url: this._options.url.call(
-	            this, urlParams.x, urlParams.y, urlParams.level || 0,
-	            this._options.subdomains),
-	        crossDomain: this._options.crossDomain
-	      });
-	    }.bind(this);
-	  };
-
-	  /**
-	   * This object contains the default options used to initialize the osmLayer.
-	   */
-	  osmLayer.defaults = $.extend({}, tileLayer.defaults, {
-	    minLevel: 0,
-	    maxLevel: 18,
-	    tileOverlap: 0,
-	    tileWidth: 256,
-	    tileHeight: 256,
-	    tileOffset : function (level) {
-	      var s = Math.pow(2, level - 1) * 256;
-	      return {x: s, y: s};
-	    },
-	    wrapX: true,
-	    wrapY: false,
-	    url: 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
-	    attribution: 'Tile data &copy; <a href="http://osm.org/copyright">' +
-	      'OpenStreetMap</a> contributors'
-	  });
-
-	  inherit(osmLayer, tileLayer);
-	  /* By default, ask to support image quads.  If the user needs full
-	   * reprojection, they will need to require the
-	   * quadFeature.capabilities.imageFull feature */
-	  registry.registerLayer('osm', osmLayer, [quadFeature.capabilities.image]);
-	  return osmLayer;
-	})();
-
-
-/***/ }),
-/* 239 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = (function () {
-	  'use strict';
-
-	  var inherit = __webpack_require__(8);
-	  var featureLayer = __webpack_require__(220);
-
-	  /**
-	   * Standard modulo operator where the output is in [0, b) for all inputs.
-	   * @private
-	   */
-	  function modulo(a, b) {
-	    return ((a % b) + b) % b;
-	  }
-
-	  /**
-	   * Pick a subdomain from a list of subdomains based on a the tile location.
-	   *
-	   * @param {number} x The x tile coordinate.
-	   * @param {number} y The y tile coordinate.
-	   * @param {number} z The tile layer.
-	   * @param {string[]} subdomains The list of known subdomains.
-	   * @returns {string} A subdomain based on the location.
-	   */
-	  function m_getTileSubdomain(x, y, z, subdomains) {
-	    return subdomains[modulo(x + y + z, subdomains.length)];
-	  }
-
-	  /**
-	   * Returns an OSM tile server formatting function from a standard format
-	   * string. Replaces `{s}`, `{z}`, `{x}`, and `{y}`.  These may be any case
-	   * and may be prefixed with `$` (e.g., `${X}` is the same as `{x}`).  The
-	   * subdomain can be specifed by a string of characters, listed as a range,
-	   * or as a comma-separated list (e.g., `{s:abc}`, `{a-c}`, `{a,b,c}` are
-	   * all equivalent.  The comma-separated list can have subdimains that are of
-	   * any length; the string and range both use one-character subdomains.
-	   *
-	   * @param {string} base The tile format string
-	   * @returns {function} A conversion function.
-	   * @private.
-	   */
-	  function m_tileUrlFromTemplate(base) {
-	    var xPattern = new RegExp(/\$?\{[xX]\}/),
-	        yPattern = new RegExp(/\$?\{[yY]\}/),
-	        zPattern = new RegExp(/\$?\{[zZ]\}/),
-	        sPattern = new RegExp(/\$?\{(s|S|[sS]:[^{}]+|[^-{}]-[^-{}]|([^,{}]+,)+[^,{}]+)\}/);
-	    var url = base
-	        .replace(sPattern, '{s}')
-	        .replace(xPattern, '{x}')
-	        .replace(yPattern, '{y}')
-	        .replace(zPattern, '{z}');
-	    var urlSubdomains;
-	    var sMatch = base.match(sPattern);
-	    if (sMatch) {
-	      if (sMatch[2]) {
-	        urlSubdomains = sMatch[1].split(',');
-	      } else if (sMatch[1][1] === ':') {
-	        urlSubdomains = sMatch[1].substr(2).split('');
-	      } else if (sMatch[1][1] === '-') {
-	        urlSubdomains = [];
-	        var start = sMatch[1].charCodeAt(0),
-	            end = sMatch[1].charCodeAt(2);
-	        for (var i = Math.min(start, end); i <= Math.max(start, end); i += 1) {
-	          urlSubdomains.push(String.fromCharCode(i));
-	        }
-	      }
-	    }
-
-	    return function (x, y, z, subdomains) {
-	      return url
-	        .replace('{s}', m_getTileSubdomain(x, y, z, urlSubdomains || subdomains))
-	        .replace('{x}', x)
-	        .replace('{y}', y)
-	        .replace('{z}', z);
-	    };
-	  }
-
-	  /**
-	   * This method defines a tileLayer, which is an abstract class defining a
-	   * layer divided into tiles of arbitrary data.  Notably, this class provides
-	   * the core functionality of the osmLayer, but hooks exist to render tiles
-	   * dynamically from vector data, or to display arbitrary grids of images
-	   * in a custom coordinate system.  When multiple zoom levels are present
-	   * in a given dataset, this class assumes that the space occupied by
-	   * tile (i, j) at level z is covered by a 2x2 grid of tiles at zoom
-	   * level z + 1:
-	   *
-	   *   (2i, 2j),     (2i, 2j + 1)
-	   *   (2i + 1, 2j), (2i + 1, 2j + 1)
-	   *
-	   * The higher level tile set should represent a 2x increase in resolution.
-	   *
-	   * Although not currently supported, this class is intended to extend to
-	   * 3D grids of tiles as well where 1 tile is covered by a 2x2x2 grid of
-	   * tiles at the next level.  The tiles are assumed to be rectangular,
-	   * identically sized, and aligned with x/y axis of the underlying
-	   * coordinate system.  The local coordinate system is in pixels relative
-	   * to the current zoom level and changes when the zoom level crosses an
-	   * integer threshold.
-	   *
-	   * The constructor takes a number of optional parameters that customize
-	   * the display of the tiles.  The default values of these options are
-	   * stored as the `defaults` attribution on the constructor.  Supporting
-	   * alternate tiling protocols often only requires adjusting these
-	   * defaults.
-	   *
-	   * @class geo.tileLayer
-	   * @extends geo.featureLayer
-	   * @param {object?} options
-	   * @param {number} [options.minLevel=0]    The minimum zoom level available
-	   * @param {number} [options.maxLevel=18]   The maximum zoom level available
-	   * @param {number} [options.tileOverlap=0]
-	   *    Number of pixels of overlap between tiles
-	   * @param {number} [options.tileWidth=256]
-	   *    The tile width as displayed without overlap
-	   * @param {number} [options.tileHeight=256]
-	   *    The tile height as displayed without overlap
-	   * @param {function} [options.tilesAtZoom=null]
-	   *    A function that is given a zoom level and returns {x: (num), y: (num)}
-	   *    with the number of tiles at that zoom level.
-	   * @param {number} [options.cacheSize=400] The maximum number of tiles to
-	   *    cache.  The default is 200 if keepLower is false.
-	   * @param {bool}   [options.keepLower=true]
-	   *    Keep lower zoom level tiles when showing high zoom level tiles.  This
-	   *    uses more memory but results in smoother transitions.
-	   * @param {bool}   [options.wrapX=true]    Wrap in the x-direction
-	   * @param {bool}   [options.wrapY=false]   Wrap in the y-direction
-	   * @param {function|string} [options.url=null]
-	   *   A function taking the current tile indices and returning a URL or jquery
-	   *   ajax config to be passed to the {geo.tile} constructor.
-	   *   Example:
-	   *     (x, y, z, subdomains) => "http://example.com/z/y/x.png"
-	   *   If this is a string, a template url with {x}, {y}, {z}, and {s} as
-	   *   template variables.  {s} picks one of the subdomains parameter.
-	   * @param {string|list} [options.subdomain="abc"]  Subdomains to use in
-	   *   template url strings.  If a string, this is converted to a list before
-	   *   being passed to a url function.
-	   * @param {string} [options.baseUrl=null]  If defined, use the old-style base
-	   *   url instead of the options.url parameter.  This is functionally the same
-	   *   as using a url of baseUrl/{z}/{x}/{y}.(options.imageFormat || png).  If
-	   *   the specified string does not end in a slash, one is added.
-	   * @param {string} [options.imageFormat='png']
-	   *   This is only used if a baseUrl is specified, in which case it determines
-	   *   the image name extension used in the url.
-	   * @param {number} [options.animationDuration=0]
-	   *   The number of milliseconds for the tile loading animation to occur.  **This
-	   *   option is currently buggy because old tiles will purge before the animation
-	   *   is complete.**
-	   * @param {string} [options.attribution]
-	   *   An attribution to display with the layer (accepts HTML)
-	   * @param {function} [options.tileRounding=Math.round]
-	   *   This function determines which tiles will be loaded when the map is at
-	   *   a non-integer zoom.  For example, `Math.floor`, will use tile level 2
-	   *   when the map is at zoom 2.9.
-	   * @param {function} [options.tileOffset]
-	   *   This function takes a zoom level argument and returns, in units of
-	   *   pixels, the coordinates of the point (0, 0) at the given zoom level
-	   *   relative to the bottom left corner of the domain.
-	   * @param {function} [options.tilesMaxBounds=null]
-	   *   This function takes a zoom level argument and returns, in units of
-	   *   pixels, the top, left, right, and bottom maximum value for which tiles
-	   *   should be drawn at the given zoom level relative to the bottom left
-	   *   corner of the domain.  This can be used to crop tiles at the edges of
-	   *   tile layer.  Note that if tiles wrap, only complete tiles in the
-	   *   wrapping direction(s) are supported, and this max bounds will probably
-	   *   not behave properly.
-	   * @param {bool}   [options.topDown=false]  True if the gcs is top-down,
-	   *   false if bottom-up (the ingcs does not matter, only the gcs coordinate
-	   *   system).  When false, this inverts the gcs y-coordinate when calculating
-	   *   local coordinates.
-	   * @returns {geo.tileLayer}
-	   */
-	  var tileLayer = function (options) {
-	    'use strict';
-	    if (!(this instanceof tileLayer)) {
-	      return new tileLayer(options);
-	    }
-	    featureLayer.call(this, options);
-
-	    var $ = __webpack_require__(1);
-	    var geo_event = __webpack_require__(9);
-	    var transform = __webpack_require__(11);
-	    var tileCache = __webpack_require__(240);
-	    var fetchQueue = __webpack_require__(229);
-	    var adjustLayerForRenderer = __webpack_require__(201).adjustLayerForRenderer;
-	    var Tile = __webpack_require__(234);
-
-	    options = $.extend(true, {}, this.constructor.defaults, options || {});
-	    if (!options.cacheSize) {
-	      // this size should be sufficient for a 4k display
-	      options.cacheSize = options.keepLower ? 600 : 200;
-	    }
-	    if ($.type(options.subdomains) === 'string') {
-	      options.subdomains = options.subdomains.split('');
-	    }
-	    /* We used to call the url option baseUrl.  If a baseUrl is specified, use
-	     * it instead of url, interpretting it as before. */
-	    if (options.baseUrl) {
-	      var url = options.baseUrl;
-	      if (url && url.charAt(url.length - 1) !== '/') {
-	        url += '/';
-	      }
-	      options.url = url + '{z}/{x}/{y}.' + (options.imageFormat || 'png');
-	    }
-	    /* Save the original url so that we can return it if asked */
-	    options.originalUrl = options.url;
-	    if ($.type(options.url) === 'string') {
-	      options.url = m_tileUrlFromTemplate(options.url);
-	    }
-
-	    var s_init = this._init,
-	        s_exit = this._exit,
-	        s_visible = this.visible,
-	        m_lastTileSet = [],
-	        m_maxBounds = [],
-	        m_exited;
-
-	    // copy the options into a private variable
-	    this._options = $.extend(true, {}, options);
-
-	    // set the layer attribution text
-	    this.attribution(options.attribution);
-
-	    // initialize the object that keeps track of actively drawn tiles
-	    this._activeTiles = {};
-
-	    // initialize the object that stores active tile regions in a
-	    // tree-like structure providing quick queries to determine
-	    // if tiles are completely obscured or not.
-	    this._tileTree = {};
-
-	    // initialize the in memory tile cache
-	    this._cache = tileCache({size: options.cacheSize});
-
-	    // initialize the tile fetch queue
-	    this._queue = fetchQueue({
-	      // this should probably be 6 * subdomains.length if subdomains are used
-	      size: 6,
-	      // if track is the same as the cache size, then neither processing time
-	      // nor memory will be wasted.  Larger values will use more memory,
-	      // smaller values will do needless computations.
-	      track: options.cacheSize,
-	      needed: function (tile) {
-	        return tile === this.cache.get(tile.toString(), true);
-	      }.bind(this)
-	    });
-
-	    var m_tileOffsetValues = {};
-
-	    /**
-	     * Readonly accessor to the options object
-	     */
-	    Object.defineProperty(this, 'options', {get: function () {
-	      return $.extend({}, this._options);
-	    }});
-
-	    /**
-	     * Readonly accessor to the tile cache object.
-	     */
-	    Object.defineProperty(this, 'cache', {get: function () {
-	      return this._cache;
-	    }});
-
-	    /**
-	     * Readonly accessor to the active tile mapping.  This is an object containing
-	     * all currently drawn tiles (hash(tile) => tile).
-	     */
-	    Object.defineProperty(this, 'activeTiles', {get: function () {
-	      return $.extend({}, this._activeTiles); // copy on output
-	    }});
-
-	    /**
-	     * The number of tiles at the given zoom level
-	     * The default implementation just returns `Math.pow(2, z)`.
-	     * @param {number} level A zoom level
-	     * @returns {{x: nx, y: ny}} The number of tiles in each axis
-	     */
-	    this.tilesAtZoom = function (level) {
-	      if (this._options.tilesAtZoom) {
-	        return this._options.tilesAtZoom.call(this, level);
-	      }
-	      var s = Math.pow(2, level);
-	      return {x: s, y: s};
-	    };
-
-	    /**
-	     * The maximum tile bounds at the given zoom level, or null if no special
-	     * tile bounds.
-	     *
-	     * @param {number} level A zoom level
-	     * @returns {object} {x: width, y: height} The maximum tile bounds in
-	     *      pixels for the specified level, or null if none specified.
-	     */
-	    this.tilesMaxBounds = function (level) {
-	      if (this._options.tilesMaxBounds) {
-	        return this._options.tilesMaxBounds.call(this, level);
-	      }
-	      return null;
-	    };
-
-	    /**
-	     * Get the crop values for a tile based on the tilesMaxBounds function.
-	     * Returns undefined if the tile should not be cropped.
-	     *
-	     * @param {object} tile: the tile to compute crop values for.
-	     * @returns {object} either undefined or an object with x and y values
-	     *      which is the size in pixels for the tile.
-	     */
-	    this.tileCropFromBounds = function (tile) {
-	      if (!this._options.tilesMaxBounds) {
-	        return;
-	      }
-	      var level = tile.index.level,
-	          bounds = this._tileBounds(tile);
-	      if (m_maxBounds[level] === undefined) {
-	        m_maxBounds[level] = this.tilesMaxBounds(level) || null;
-	      }
-	      if (m_maxBounds[level] && (bounds.right > m_maxBounds[level].x ||
-	          bounds.bottom > m_maxBounds[level].y)) {
-	        return {
-	          x: Math.max(0, Math.min(m_maxBounds[level].x, bounds.right) - bounds.left),
-	          y: Math.max(0, Math.min(m_maxBounds[level].y, bounds.bottom) - bounds.top)
-	        };
-	      }
-	    };
-
-	    /**
-	     * Returns true if the given tile index is valid:
-	     *   * min level <= level <= max level
-	     *   * 0 <= x <= 2^level - 1
-	     *   * 0 <= y <= 2^level - 1
-	     * @param {object} index The tile index
-	     * @param {number} index.x
-	     * @param {number} index.y
-	     * @param {number} index.level
-	     * @returns {geo.tile}
-	     */
-	    this.isValid = function (index) {
-	      if (!(this._options.minLevel <= index.level &&
-	           index.level <= this._options.maxLevel)) {
-	        return false;
-	      }
-	      if (!(this._options.wrapX ||
-	            0 <= index.x &&
-	            index.x <= this.tilesAtZoom(index.level).x - 1)) {
-	        return false;
-	      }
-	      if (!(this._options.wrapY ||
-	            0 <= index.y &&
-	            index.y <= this.tilesAtZoom(index.level).y - 1)) {
-	        return false;
-	      }
-	      return true;
-	    };
-
-	    /**
-	     * Returns the current origin tile and offset at the given zoom level.
-	     * This is intended to be cached in the future to optimize coordinate
-	     * transformations.
-	     * @protected
-	     * @param {number} level The target zoom level
-	     * @returns {object} {index: {x, y}, offset: {x, y}}
-	     */
-	    this._origin = function (level) {
-	      var origin = this.toLevel(this.toLocal(this.map().origin()), level),
-	          o = this._options,
-	          index, offset;
-
-	      // get the tile index
-	      index = {
-	        x: Math.floor(origin.x / o.tileWidth),
-	        y: Math.floor(origin.y / o.tileHeight)
-	      };
-
-	      // get the offset inside the tile (in pixels)
-	      // This computation should contain the only numerically unstable
-	      // subtraction in this class.  All other methods will assume
-	      // coordinates are given relative to the map origin.
-	      offset = {
-	        x: origin.x - o.tileWidth * index.x,
-	        y: origin.y - o.tileHeight * index.y
-	      };
-	      return {index: index, offset: offset};
-	    };
-
-	    /**
-	     * Returns a tile's bounds in its level coordinates.
-	     * @param {geo.tile} tile
-	     * @returns {object} bounds
-	     */
-	    this._tileBounds = function (tile) {
-	      var origin = this._origin(tile.index.level);
-	      return tile.bounds(origin.index, origin.offset);
-	    };
-
-	    /**
-	     * Returns the tile indices at the given point.
-	     * @param {object} point The coordinates in pixels relative to the map origin.
-	     * @param {number} point.x
-	     * @param {number} point.y
-	     * @param {number} level The target zoom level
-	     * @returns {object} The tile indices
-	     */
-	    this.tileAtPoint = function (point, level) {
-	      var o = this._origin(level);
-	      var map = this.map();
-	      point = this.displayToLevel(map.gcsToDisplay(point, null), level);
-	      if (isNaN(point.x)) { point.x = 0; }
-	      if (isNaN(point.y)) { point.y = 0; }
-	      var to = this._tileOffset(level);
-	      if (to) {
-	        point.x += to.x;
-	        point.y += to.y;
-	      }
-	      var tile = {
-	        x: Math.floor(
-	          o.index.x + (o.offset.x + point.x) / this._options.tileWidth
-	        ),
-	        y: Math.floor(
-	          o.index.y + (o.offset.y + point.y) / this._options.tileHeight
-	        )
-	      };
-	      return tile;
-	    };
-
-	    /**
-	     * Returns a tile's bounds in a gcs.
-	     * @param {object|tile} either a tile or an object with {x, y, level}
-	     *                      specifying a tile.
-	     * @param {string|geo.transform} [gcs] undefined to use the interface gcs,
-	     *    null to use the map gcs, or any other transform.
-	     * @returns {object} The tile bounds in the specified gcs.
-	     */
-	    this.gcsTileBounds = function (indexOrTile, gcs) {
-	      var tile = (indexOrTile.index ? indexOrTile : Tile({
-	        index: indexOrTile,
-	        size: {x: this._options.tileWidth, y: this._options.tileHeight},
-	        url: ''
-	      }));
-	      var to = this._tileOffset(tile.index.level),
-	          bounds = tile.bounds({x: 0, y: 0}, to),
-	          map = this.map(),
-	          unit = map.unitsPerPixel(tile.index.level);
-	      var coord = [{
-	        x: bounds.left * unit, y: this._topDown() * bounds.top * unit
-	      }, {
-	        x: bounds.right * unit, y: this._topDown() * bounds.bottom * unit
-	      }];
-	      gcs = (gcs === null ? map.gcs() : (
-	          gcs === undefined ? map.ingcs() : gcs));
-	      if (gcs !== map.gcs()) {
-	        coord = transform.transformCoordinates(map.gcs(), gcs, coord);
-	      }
-	      return {
-	        left: coord[0].x,
-	        top: coord[0].y,
-	        right: coord[1].x,
-	        bottom: coord[1].y
-	      };
-	    };
-
-	    /**
-	     * Returns an instantiated tile object with the given indices.  This
-	     * method always returns a new tile object.  Use `_getTileCached`
-	     * to use the caching layer.
-	     * @param {object} index The tile index
-	     * @param {number} index.x
-	     * @param {number} index.y
-	     * @param {number} index.level
-	     * @param {object} source The tile index used for constructing the url
-	     * @param {number} source.x
-	     * @param {number} source.y
-	     * @param {number} source.level
-	     * @returns {geo.tile}
-	     */
-	    this._getTile = function (index, source) {
-	      var urlParams = source || index;
-	      return Tile({
-	        index: index,
-	        size: {x: this._options.tileWidth, y: this._options.tileHeight},
-	        queue: this._queue,
-	        url: this._options.url.call(
-	            this, urlParams.x, urlParams.y, urlParams.level || 0,
-	            this._options.subdomains)
-	      });
-	    };
-
-	    /**
-	     * Returns an instantiated tile object with the given indices.  This
-	     * method is similar to `_getTile`, but checks the cache before
-	     * generating a new tile.
-	     * @param {object} index The tile index
-	     * @param {number} index.x
-	     * @param {number} index.y
-	     * @param {number} index.level
-	     * @param {object} source The tile index used for constructing the url
-	     * @param {number} source.x
-	     * @param {number} source.y
-	     * @param {number} source.level
-	     * @param {boolean} delayPurge If true, don't purge tiles from the cache
-	     * @returns {geo.tile}
-	     */
-	    this._getTileCached = function (index, source, delayPurge) {
-	      var tile = this.cache.get(this._tileHash(index));
-	      if (tile === null) {
-	        tile = this._getTile(index, source);
-	        this.cache.add(tile, this.remove.bind(this), delayPurge);
-	      }
-	      return tile;
-	    };
-
-	    /**
-	     * Returns a string representation of the tile at the given index.
-	     * This method is used as a hashing function for the caching layer.
-	     *
-	     * Note: This method _must_ return the same string as:
-	     *
-	     *   tile({index: index}).toString();
-	     *
-	     * @param {object} index The tile index
-	     * @param {number} index.x
-	     * @param {number} index.y
-	     * @param {number} index.level
-	     * @returns {string}
-	     */
-	    this._tileHash = function (index) {
-	      return [index.level || 0, index.y, index.x].join('_');
-	    };
-
-	    /**
-	     * Returns the optimal starting and ending tile indices
-	     * (inclusive) necessary to fill the given viewport.
-	     * @param {number} level The zoom level
-	     * @param {object} bounds The map bounds in world coordinates
-	     */
-	    this._getTileRange = function (level, bounds) {
-	      var corners = [
-	        this.tileAtPoint({x: bounds.left, y: bounds.top}, level),
-	        this.tileAtPoint({x: bounds.right, y: bounds.top}, level),
-	        this.tileAtPoint({x: bounds.left, y: bounds.bottom}, level),
-	        this.tileAtPoint({x: bounds.right, y: bounds.bottom}, level)
-	      ];
-	      return {
-	        start: {
-	          x: Math.min(corners[0].x, corners[1].x, corners[2].x, corners[3].x),
-	          y: Math.min(corners[0].y, corners[1].y, corners[2].y, corners[3].y)
-	        },
-	        end: {
-	          x: Math.max(corners[0].x, corners[1].x, corners[2].x, corners[3].x),
-	          y: Math.max(corners[0].y, corners[1].y, corners[2].y, corners[3].y)
-	        }
-	      };
-	    };
-
-	    /**
-	     * Returns a list of tiles necessary to fill the screen at the given
-	     * zoom level, center point, and viewport size.  The list is optionally
-	     * ordered by loading priority (center tiles first).
-	     *
-	     * @protected
-	     * @param {number} maxLevel The zoom level
-	     * @param {object} bounds The map bounds
-	     * @param {boolean} sorted Return a sorted list
-	     * @param {boolean} onlyIfChanged If the set of tiles have not changed
-	     *     (even if their desired order has), return undefined instead of an
-	     *     array of tiles.
-	     * @returns {geo.tile[]} An array of tile objects
-	     */
-	    this._getTiles = function (maxLevel, bounds, sorted, onlyIfChanged) {
-	      var i, j, tiles = [], index, nTilesLevel,
-	          start, end, indexRange, source, center, changed = false, old, level,
-	          minLevel = (this._options.keepLower ? this._options.minLevel :
-	                      maxLevel);
-	      if (maxLevel < minLevel) {
-	        maxLevel = minLevel;
-	      }
-
-	      /* Generate a list of the tiles that we want to create.  This is done
-	       * before sorting, because we want to actually generate the tiles in
-	       * the sort order. */
-	      for (level = minLevel; level <= maxLevel; level += 1) {
-	        // get the tile range to fetch
-	        indexRange = this._getTileRange(level, bounds);
-	        start = indexRange.start;
-	        end = indexRange.end;
-	        // total number of tiles existing at this level
-	        nTilesLevel = this.tilesAtZoom(level);
-
-	        if (!this._options.wrapX) {
-	          start.x = Math.min(Math.max(start.x, 0), nTilesLevel.x - 1);
-	          end.x = Math.min(Math.max(end.x, 0), nTilesLevel.x - 1);
-	          if (level === minLevel && this._options.keepLower) {
-	            start.x = 0;
-	            end.x = nTilesLevel.x - 1;
-	          }
-	        }
-	        if (!this._options.wrapY) {
-	          start.y = Math.min(Math.max(start.y, 0), nTilesLevel.y - 1);
-	          end.y = Math.min(Math.max(end.y, 0), nTilesLevel.y - 1);
-	          if (level === minLevel && this._options.keepLower) {
-	            start.y = 0;
-	            end.y = nTilesLevel.y - 1;
-	          }
-	        }
-	        /* If we are reprojecting tiles, we need a check to not use all levels
-	         * if the number of tiles is excessive. */
-	        if (this._options.gcs && this._options.gcs !== this.map().gcs() &&
-	            level !== minLevel &&
-	            (end.x + 1 - start.x) * (end.y + 1 - start.y) >
-	            (this.map().size().width * this.map().size().height /
-	            this._options.tileWidth / this._options.tileHeight) * 16) {
-	          break;
-	        }
-
-	        // loop over the tile range
-	        for (i = start.x; i <= end.x; i += 1) {
-	          for (j = start.y; j <= end.y; j += 1) {
-	            index = {level: level, x: i, y: j};
-	            source = {level: level, x: i, y: j};
-	            if (this._options.wrapX) {
-	              source.x = modulo(source.x, nTilesLevel.x);
-	            }
-	            if (this._options.wrapY) {
-	              source.y = modulo(source.y, nTilesLevel.y);
-	            }
-	            if (this.isValid(source)) {
-	              if (onlyIfChanged && tiles.length < m_lastTileSet.length) {
-	                old = m_lastTileSet[tiles.length];
-	                changed = changed || (index.level !== old.level ||
-	                    index.x !== old.x || index.y !== old.y);
-	              }
-	              tiles.push({index: index, source: source});
-	            }
-	          }
-	        }
-	      }
-
-	      if (onlyIfChanged) {
-	        if (!changed && tiles.length === m_lastTileSet.length) {
-	          return;
-	        }
-	        m_lastTileSet.splice(0, m_lastTileSet.length);
-	        $.each(tiles, function (idx, tile) {
-	          m_lastTileSet.push(tile.index);
-	        });
-	      }
-
-	      if (sorted) {
-	        center = {
-	          x: (start.x + end.x) / 2,
-	          y: (start.y + end.y) / 2,
-	          level: maxLevel,
-	          bottomLevel: maxLevel
-	        };
-	        var numTiles = Math.max(end.x - start.x, end.y - start.y) + 1;
-	        for (; numTiles >= 1; numTiles /= 2) {
-	          center.bottomLevel -= 1;
-	        }
-	        tiles.sort(this._loadMetric(center));
-	        /* If we are using a fetch queue, start a new batch */
-	        if (this._queue) {
-	          this._queue.batch(true);
-	        }
-	      }
-	      if (this.cache.size < tiles.length) {
-	        console.log('Increasing cache size to ' + tiles.length);
-	        this.cache.size = tiles.length;
-	      }
-	      /* Actually get the tiles. */
-	      for (i = 0; i < tiles.length; i += 1) {
-	        tiles[i] = this._getTileCached(tiles[i].index, tiles[i].source, true);
-	      }
-	      this.cache.purge(this.remove.bind(this));
-	      return tiles;
-	    };
-
-	    /**
-	     * Prefetches tiles up to a given zoom level around a given bounding box.
-	     *
-	     * @param {number} level The zoom level
-	     * @param {object} bounds The map bounds
-	     * @returns {$.Deferred} resolves when all of the tiles are fetched
-	     */
-	    this.prefetch = function (level, bounds) {
-	      var tiles;
-	      tiles = this._getTiles(level, bounds, true);
-	      return $.when.apply($,
-	        tiles.map(function (tile) {
-	          return tile.fetch();
-	        })
-	      );
-	    };
-
-	    /**
-	     * This method returns a metric that determines tile loading order.  The
-	     * default implementation prioritizes tiles that are closer to the center,
-	     * or at a lower zoom level.
-	     * @protected
-	     * @param {index1} center   The center tile
-	     * @param {number} center.x
-	     * @param {number} center.y
-	     * @returns {function} A function accepted by Array.prototype.sort
-	     */
-	    this._loadMetric = function (center) {
-	      return function (a, b) {
-	        var a0, b0, dx, dy, cx, cy, scale;
-
-	        a = a.index || a;
-	        b = b.index || b;
-	        // shortcut if zoom level differs
-	        if (a.level !== b.level) {
-	          if (center.bottomLevel && ((a.level >= center.bottomLevel) !==
-	                                     (b.level >= center.bottomLevel))) {
-	            return a.level >= center.bottomLevel ? -1 : 1;
-	          }
-	          return a.level - b.level;
-	        }
-
-	        /* compute the center coordinates relative to a.level.  Since we really
-	         * care about the center of the tiles, use an offset */
-	        scale = Math.pow(2, a.level - center.level);
-	        cx = (center.x + 0.5) * scale - 0.5;
-	        cy = (center.y + 0.5) * scale - 0.5;
-
-	        // calculate distances to the center squared
-	        dx = a.x - cx;
-	        dy = a.y - cy;
-	        a0 = dx * dx + dy * dy;
-
-	        dx = b.x - cx;
-	        dy = b.y - cy;
-	        b0 = dx * dx + dy * dy;
-
-	        // return negative if a < b, or positive if a > b
-	        return a0 - b0;
-	      };
-	    };
-
-	    /**
-	     * Convert a coordinate from pixel coordinates at the given zoom
-	     * level to world coordinates.
-	     * @param {object} coord
-	     * @param {number} coord.x The offset in pixels (level 0) from the left edge
-	     * @param {number} coord.y The offset in pixels (level 0) from the bottom edge
-	     * @param {number} level   The zoom level of the source coordinates
-	     */
-	    this.fromLevel = function (coord, level) {
-	      var s = Math.pow(2, -level);
-	      return {
-	        x: coord.x * s,
-	        y: coord.y * s
-	      };
-	    };
-
-	    /**
-	     * Convert a coordinate from layer coordinates to pixel coordinates at the
-	     * given zoom level.
-	     * @param {object} coord
-	     * @param {number} coord.x The offset in pixels (level 0) from the left edge
-	     * @param {number} coord.y The offset in pixels (level 0) from the bottom edge
-	     * @param {number} level   The zoom level of the new coordinates
-	     */
-	    this.toLevel = function (coord, level) {
-	      var s = Math.pow(2, level);
-	      return {
-	        x: coord.x * s,
-	        y: coord.y * s
-	      };
-	    };
-
-	    /**
-	     * Draw the given tile on the active canvas.
-	     * @param {geo.tile} tile The tile to draw
-	     */
-	    this.drawTile = function (tile) {
-	      var hash = tile.toString();
-
-	      if (this._activeTiles.hasOwnProperty(hash)) {
-	        // the tile is already drawn, move it to the top
-	        this._moveToTop(tile);
-	      } else {
-	        // pass to the rendering implementation
-	        this._drawTile(tile);
-	      }
-
-	      // add the tile to the active cache
-	      this._activeTiles[hash] = tile;
-	    };
-
-	    /**
-	     * Render the tile on the canvas.  This implementation draws the tiles directly
-	     * on the DOM using <img> tags.  Derived classes should override this method
-	     * to draw the tile on a renderer specific context.
-	     * @protected
-	     * @param {geo.tile} tile The tile to draw
-	     */
-	    this._drawTile = function (tile) {
-	      // Make sure this method is not called when there is
-	      // a renderer attached.
-	      if (this.renderer() !== null) {
-	        throw new Error('This draw method is not valid on renderer managed layers.');
-	      }
-
-	      // get the layer node
-	      var level = tile.index.level,
-	          div = $(this._getSubLayer(level)),
-	          bounds = this._tileBounds(tile),
-	          duration = this._options.animationDuration,
-	          container = $('<div class="geo-tile-container"/>').attr(
-	            'tile-reference', tile.toString()),
-	          crop;
-
-	      // apply a transform to place the image correctly
-	      container.append(tile.image);
-	      container.css({
-	        left: (bounds.left - parseInt(div.attr('offsetx') || 0, 10)) + 'px',
-	        top: (bounds.top - parseInt(div.attr('offsety') || 0, 10)) + 'px'
-	      });
-
-	      crop = this.tileCropFromBounds(tile);
-	      if (crop) {
-	        container.addClass('crop').css({
-	          width: crop.x + 'px',
-	          height: crop.y + 'px'
-	        });
-	      }
-
-	      // apply fade in animation
-	      if (duration > 0) {
-	        tile.fadeIn(duration);
-	      }
-
-	      // append the image element
-	      div.append(container);
-
-	      // add an error handler
-	      tile.catch(function () {
-	        // May want to do something special here later
-	        console.warn('Could not load tile at ' + tile.toString());
-	        this._remove(tile);
-	      }.bind(this));
-	    };
-
-	    /**
-	     * Remove the given tile from the canvas and the active cache.
-	     * @param {geo.tile|string} tile The tile (or hash) to remove
-	     * @returns {geo.tile} the tile removed from the active layer
-	     */
-	    this.remove = function (tile) {
-	      var hash = tile.toString();
-	      var value = this._activeTiles[hash];
-
-	      if (value instanceof Tile) {
-	        this._remove(value);
-	      }
-
-	      delete this._activeTiles[hash];
-	      return value;
-	    };
-
-	    /**
-	     * Remove the given tile from the canvas.  This implementation just
-	     * finds and removes the <img> element created for the tile.
-	     * @param {geo.tile|string} tile The tile object to remove
-	     */
-	    this._remove = function (tile) {
-	      if (tile.image) {
-	        if (tile.image.parentElement) {
-	          $(tile.image.parentElement).remove();
-	        } else {
-	          /* This shouldn't happen, but sometimes does.  Originally it happened
-	           * when a tile was removed from the cache before it was finished
-	           * being used; there is still some much rarer condition that can
-	           * cause it.  Log that it happened until we can figure out how to fix
-	           * the issue. */
-	          console.log('No parent element to remove ' + tile.toString(), tile);
-	        }
-	        $(tile.image).remove();
-	      }
-	    };
-
-	    /**
-	     * Move the given tile to the top on the canvas.
-	     * @param {geo.tile} tile The tile object to move
-	     */
-	    this._moveToTop = function (tile) {
-	      $.noop(tile);
-	    };
-
-	    /**
-	     * Query the attached map for the current bounds and return them
-	     * as pixels at the current zoom level.
-	     * @returns {object}
-	     *  Bounds object with left, right, top, bottom keys
-	     * @protected
-	     */
-	    this._getViewBounds = function () {
-	      var map = this.map(),
-	          mapZoom = map.zoom(),
-	          zoom = this._options.tileRounding(mapZoom),
-	          scale = Math.pow(2, mapZoom - zoom),
-	          size = map.size();
-	      var ul = this.displayToLevel({x: 0, y: 0}),
-	          ur = this.displayToLevel({x: size.width, y: 0}),
-	          ll = this.displayToLevel({x: 0, y: size.height}),
-	          lr = this.displayToLevel({x: size.width, y: size.height});
-	      return {
-	        level: zoom,
-	        scale: scale,
-	        left: Math.min(ul.x, ur.x, ll.x, lr.x),
-	        right: Math.max(ul.x, ur.x, ll.x, lr.x),
-	        top: Math.min(ul.y, ur.y, ll.y, lr.y),
-	        bottom: Math.max(ul.y, ur.y, ll.y, lr.y)
-	      };
-	    };
-
-	    /**
-	     * Remove all inactive tiles from the display.  An inactive tile
-	     * is one that is no longer visible either because it was panned
-	     * out of the active view or the zoom has changed.
-	     * @protected
-	     * @param {number} zoom Tiles (in bounds) at this zoom level will be kept
-	     * @param {boolean} doneLoading If true, allow purging additional tiles.
-	     * @param {object} bounds view bounds.  If not specified, this is
-	     *   obtained from _getViewBounds().
-	     */
-	    this._purge = function (zoom, doneLoading, bounds) {
-	      var tile, hash;
-
-	      // Don't purge tiles in an active update
-	      if (this._updating) {
-	        return;
-	      }
-
-	      // get the view bounds
-	      if (!bounds) {
-	        bounds = this._getViewBounds();
-	      }
-
-	      for (hash in this._activeTiles) {
-
-	        tile = this._activeTiles[hash];
-	        if (this._canPurge(tile, bounds, zoom, doneLoading)) {
-	          this.remove(tile);
-	        }
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Remove all active tiles from the canvas.
-	     * @returns {geo.tile[]} The array of tiles removed
-	     */
-	    this.clear = function () {
-	      var tiles = [], tile;
-
-	      // ignoring the warning here because this is a privately
-	      // controlled object with simple keys
-	      for (tile in this._activeTiles) {
-	        tiles.push(this.remove(tile));
-	      }
-
-	      // clear out the tile coverage tree
-	      this._tileTree = {};
-
-	      m_lastTileSet = [];
-
-	      return tiles;
-	    };
-
-	    /**
-	     * Reset the layer to the initial state, clearing the canvas
-	     * and resetting the tile cache.
-	     * @returns {this} Chainable
-	     */
-	    this.reset = function () {
-	      this.clear();
-	      this._cache.clear();
-	    };
-
-	    /**
-	     * Compute local coordinates from the given world coordinates.  The
-	     * tile layer uses units of pixels relative to the world space
-	     * coordinate origin.
-	     * @param {object} pt A point in world space coordinates
-	     * @param {number|undefined} zoom If unspecified, use the map zoom.
-	     * @returns {object} Local coordinates
-	     */
-	    this.toLocal = function (pt, zoom) {
-	      var map = this.map(),
-	          unit = map.unitsPerPixel(zoom === undefined ? map.zoom() : zoom);
-	      return {
-	        x: pt.x / unit,
-	        y: this._topDown() * pt.y / unit
-	      };
-	    };
-
-	    /**
-	     * Compute world coordinates from the given local coordinates.  The
-	     * tile layer uses units of pixels relative to the world space
-	     * coordinate origin.
-	     * @param {object} pt A point in world space coordinates
-	     * @param {number|undefined} zoom If unspecified, use the map zoom.
-	     * @returns {object} Local coordinates
-	     */
-	    this.fromLocal = function (pt, zoom) {
-	      // these need to always use the *layer* unitsPerPixel, or possibly
-	      // convert tile space using a transform
-	      var map = this.map(),
-	          unit = map.unitsPerPixel(zoom === undefined ? map.zoom() : zoom);
-	      return {
-	        x: pt.x * unit,
-	        y: this._topDown() * pt.y * unit
-	      };
-	    };
-
-	    /**
-	     * Return a factor for invertin the y units as appropriate.
-	     * @return {number}
-	     */
-	    this._topDown = function () {
-	      return this._options.topDown ? 1 : -1;
-	    };
-
-	    /**
-	     * Return the DOM element containing a level specific layer.  This will
-	     * create the element if it doesn't already exist.
-	     * @param {number} level The zoom level of the layer to fetch
-	     * @return {DOM}
-	     */
-	    this._getSubLayer = function (level) {
-	      if (!this.canvas()) {
-	        return;
-	      }
-	      var node = this.canvas()
-	        .find('div[data-tile-layer=' + level.toFixed() + ']').get(0);
-	      if (!node) {
-	        node = $(
-	          '<div class=geo-tile-layer data-tile-layer="' + level.toFixed() + '"/>'
-	        ).get(0);
-	        this.canvas().append(node);
-	      }
-	      return node;
-	    };
-
-	    /**
-	     * Set sublayer transforms to align them with the given zoom level.
-	     * @param {number} level The target zoom level
-	     * @param {object} view The view bounds.  The top and left are used to
-	     *                      adjust the offset of tile layers.
-	     * @return {object} the x and y offsets for the current level.
-	     */
-	    this._updateSubLayers = function (level, view) {
-	      var canvas = this.canvas(),
-	          lastlevel = parseInt(canvas.attr('lastlevel'), 10),
-	          lastx = parseInt(canvas.attr('lastoffsetx') || 0, 10),
-	          lasty = parseInt(canvas.attr('lastoffsety') || 0, 10);
-	      if (lastlevel === level && Math.abs(lastx - view.left) < 65536 &&
-	          Math.abs(lasty - view.top) < 65536) {
-	        return {x: lastx, y: lasty};
-	      }
-	      var map = this.map(),
-	          to = this._tileOffset(level),
-	          x = parseInt((view.left + view.right - map.size().width) / 2 + to.x, 10),
-	          y = parseInt((view.top + view.bottom - map.size().height) / 2 + to.y, 10);
-	      canvas.find('.geo-tile-layer').each(function (idx, el) {
-	        var $el = $(el),
-	            layer = parseInt($el.data('tileLayer'), 10);
-	        $el.css(
-	          'transform',
-	          'scale(' + Math.pow(2, level - layer) + ')'
-	        );
-	        var layerx = parseInt(x / Math.pow(2, level - layer), 10),
-	            layery = parseInt(y / Math.pow(2, level - layer), 10),
-	            dx = layerx - parseInt($el.attr('offsetx') || 0, 10),
-	            dy = layery - parseInt($el.attr('offsety') || 0, 10);
-	        $el.attr({offsetx: layerx, offsety: layery});
-	        $el.find('.geo-tile-container').each(function (tileidx, tileel) {
-	          $(tileel).css({
-	            left: (parseInt($(tileel).css('left'), 10) - dx) + 'px',
-	            top: (parseInt($(tileel).css('top'), 10) - dy) + 'px'
-	          });
-	        });
-	      });
-	      canvas.attr({lastoffsetx: x, lastoffsety: y, lastlevel: level});
-	      return {x: x, y: y};
-	    };
-
-	    /**
-	     * Update the view according to the map/camera.
-	     * @returns {this} Chainable
-	     */
-	    this._update = function (evt) {
-	      /* Ignore zoom and rotate events, as they are ALWAYS followed by a pan
-	       * event */
-	      if (evt && evt.event && (evt.event.event === geo_event.zoom ||
-	          evt.event.event === geo_event.rotate)) {
-	        return;
-	      }
-	      if (!this.visible()) {
-	        return;
-	      }
-	      var map = this.map(),
-	          bounds = map.bounds(undefined, null),
-	          mapZoom = map.zoom(),
-	          zoom = this._options.tileRounding(mapZoom),
-	          tiles;
-	      if (this._updateSubLayers) {
-	        var view = this._getViewBounds();
-	        // Update the transform for the local layer coordinates
-	        var offset = this._updateSubLayers(zoom, view) || {x: 0, y: 0};
-
-	        var to = this._tileOffset(zoom);
-	        if (this.renderer() === null) {
-	          var scale = Math.pow(2, mapZoom - zoom),
-	              rotation = map.rotation(),
-	              rx = -to.x + -(view.left + view.right) / 2 + offset.x,
-	              ry = -to.y + -(view.bottom + view.top) / 2 + offset.y,
-	              dx = (rx + map.size().width / 2),
-	              dy = (ry + map.size().height / 2);
-
-	          this.canvas().css({
-	            'transform-origin': '' +
-	                -rx + 'px ' +
-	                -ry + 'px'
-	          });
-	          var transform = 'translate(' + dx + 'px' + ',' + dy + 'px' + ')' +
-	              'scale(' + scale + ')';
-	          if (rotation) {
-	            transform += 'rotate(' + (rotation * 180 / Math.PI) + 'deg)';
-	          }
-	          this.canvas().css('transform', transform);
-	        }
-	        /* Set some attributes that can be used by non-css based viewers.  This
-	         * doesn't include the map center, as that may need to be handled
-	         * differently from the view center. */
-	        this.canvas().attr({
-	          scale: Math.pow(2, mapZoom - zoom),
-	          dx: -to.x + -(view.left + view.right) / 2,
-	          dy: -to.y + -(view.bottom + view.top) / 2,
-	          offsetx: offset.x,
-	          offsety: offset.y,
-	          rotation: map.rotation()
-	        });
-	      }
-
-	      tiles = this._getTiles(
-	        zoom, bounds, true, true
-	      );
-
-	      if (tiles === undefined) {
-	        return;
-	      }
-
-	      // reset the tile coverage tree
-	      this._tileTree = {};
-
-	      tiles.forEach(function (tile) {
-	        if (tile.fetched()) {
-	          /* if we have already fetched the tile, we know we can just draw it,
-	           * as the bounds won't have changed since the call to _getTiles. */
-	          this.drawTile(tile);
-
-	          // mark the tile as covered
-	          this._setTileTree(tile);
-	        } else {
-	          if (!tile._queued) {
-	            tile.then(function () {
-	              if (m_exited) {
-	                /* If we have disconnected the renderer, do nothing.  This
-	                 * happens when the layer is being deleted. */
-	                return;
-	              }
-	              if (tile !== this.cache.get(tile.toString())) {
-	                /* If the tile has fallen out of the cache, don't draw it -- it
-	                 * is untracked.  This may be an indication that a larger cache
-	                 * should have been used. */
-	                return;
-	              }
-	              /* Check if a tile is still desired.  Don't draw it if it
-	               * isn't. */
-	              var mapZoom = map.zoom(),
-	                  zoom = this._options.tileRounding(mapZoom),
-	                  view = this._getViewBounds();
-	              if (this._canPurge(tile, view, zoom)) {
-	                this.remove(tile);
-	                return;
-	              }
-
-	              this.drawTile(tile);
-
-	              // mark the tile as covered
-	              this._setTileTree(tile);
-	            }.bind(this));
-
-	            this.addPromise(tile);
-	            tile._queued = true;
-	          } else {
-	            /* If we are using a fetch queue, tell the queue so this tile can
-	             * be reprioritized. */
-	            var pos = this._queue ? this._queue.get(tile) : -1;
-	            if (pos >= 0) {
-	              this._queue.add(tile);
-	            }
-	          }
-	        }
-	      }.bind(this));
-	      // purge all old tiles when the new tiles are loaded (successfully or not)
-	      $.when.apply($, tiles)
-	        .done(// called on success and failure
-	          function () {
-	            var map = this.map(),
-	                mapZoom = map.zoom(),
-	                zoom = this._options.tileRounding(mapZoom);
-	            this._purge(zoom, true);
-	          }.bind(this)
-	        );
-	    };
-
-	    /**
-	     * Set a value in the tile tree object indicating that the given area of
-	     * the canvas is covered by the tile.
-	     * @protected
-	     * @param {geo.tile} tile
-	     */
-	    this._setTileTree = function (tile) {
-	      if (this._options.keepLower) {
-	        return;
-	      }
-	      var index = tile.index;
-	      this._tileTree[index.level] = this._tileTree[index.level] || {};
-	      this._tileTree[index.level][index.x] = this._tileTree[index.level][index.x] || {};
-	      this._tileTree[index.level][index.x][index.y] = tile;
-	    };
-
-	    /**
-	     * Get a value in the tile tree object if it exists or return null.
-	     * @protected
-	     * @param {object} index A tile index object
-	     * @param {object} index.level
-	     * @param {object} index.x
-	     * @param {object} index.y
-	     * @returns {geo.tile|null}
-	     */
-	    this._getTileTree = function (index) {
-	      return (
-	          (
-	            this._tileTree[index.level] || {}
-	          )[index.x] || {}
-	        )[index.y] || null;
-	    };
-
-	    /**
-	     * Returns true if the tile is completely covered by other tiles on the canvas.
-	     * Currently this method only checks layers +/- 1 away from `tile`.  If the
-	     * zoom level is allowed to change by 2 or more in a single update step, this
-	     * method will need to be refactored to make a more robust check.  Returns
-	     * an array of tiles covering it or null if any part of the tile is exposed.
-	     * @protected
-	     * @param {geo.tile} tile
-	     * @returns {geo.tile[]|null}
-	     */
-	    this._isCovered = function (tile) {
-	      var level = tile.index.level,
-	          x = tile.index.x,
-	          y = tile.index.y,
-	          tiles = [];
-
-	      // Check one level up
-	      tiles = this._getTileTree({
-	        level: level - 1,
-	        x: Math.floor(x / 2),
-	        y: Math.floor(y / 2)
-	      });
-	      if (tiles) {
-	        return [tiles];
-	      }
-
-	      // Check one level down
-	      tiles = [
-	        this._getTileTree({
-	          level: level + 1,
-	          x: 2 * x,
-	          y: 2 * y
-	        }),
-	        this._getTileTree({
-	          level: level + 1,
-	          x: 2 * x + 1,
-	          y: 2 * y
-	        }),
-	        this._getTileTree({
-	          level: level + 1,
-	          x: 2 * x,
-	          y: 2 * y + 1
-	        }),
-	        this._getTileTree({
-	          level: level + 1,
-	          x: 2 * x + 1,
-	          y: 2 * y + 1
-	        })
-	      ];
-	      if (tiles.every(function (t) { return t !== null; })) {
-	        return tiles;
-	      }
-
-	      return null;
-	    };
-
-	    /**
-	     * Returns true if the provided tile is outside of the current view bounds
-	     * and can be removed from the canvas.
-	     * @protected
-	     * @param {geo.tile} tile
-	     * @param {object?} bounds The view bounds
-	     * @param {object?} bounds.left
-	     * @param {object?} bounds.right
-	     * @param {object?} bounds.top
-	     * @param {object?} bounds.bottom
-	     * @returns {boolean}
-	     */
-	    this._outOfBounds = function (tile, bounds) {
-	      /* We may want to add an (n) tile edge buffer so we appear more
-	       * responsive */
-	      var to = this._tileOffset(tile.index.level);
-	      var scale = 1;
-	      if (tile.index.level !== bounds.level) {
-	        scale = Math.pow(2, (bounds.level || 0) - (tile.index.level || 0));
-	      }
-	      return (tile.bottom - to.y) * scale < bounds.top ||
-	             (tile.left - to.x) * scale > bounds.right ||
-	             (tile.top - to.y) * scale > bounds.bottom ||
-	             (tile.right - to.x) * scale < bounds.left;
-	    };
-
-	    /**
-	     * Returns true if the provided tile can be purged from the canvas.  This method
-	     * will return `true` if the tile is completely covered by one or more other tiles
-	     * or it is outside of the active view bounds.  This method returns the logical and
-	     * of `_isCovered` and `_outOfBounds`.
-	     * @protected
-	     * @param {geo.tile} tile
-	     * @param {object?} bounds The view bounds (if empty, assume global bounds)
-	     * @param {number} bounds.left
-	     * @param {number} bounds.right
-	     * @param {number} bounds.top
-	     * @param {number} bounds.bottom
-	     * @param {number} bounds.level The zoom level the bounds are given as
-	     * @param {number} zoom Keep in bound tile at this zoom level
-	     * @param {boolean} doneLoading If true, allow purging additional tiles.
-	     * @returns {boolean}
-	     */
-	    this._canPurge = function (tile, bounds, zoom, doneLoading) {
-	      if (this._options.keepLower) {
-	        zoom = zoom || 0;
-	        if (zoom < tile.index.level &&
-	            tile.index.level !== this._options.minLevel) {
-	          return true;
-	        }
-	        if (tile.index.level === this._options.minLevel &&
-	            !this._options.wrapX && !this._options.wrapY) {
-	          return false;
-	        }
-	      } else {
-	        /* For tile layers that should only keep one layer, if loading is
-	         * finished, purge all but the current layer.  This is important for
-	         * semi-transparanet layers. */
-	        if ((doneLoading || this._isCovered(tile)) &&
-	            zoom !== tile.index.level) {
-	          return true;
-	        }
-	      }
-	      if (bounds) {
-	        return this._outOfBounds(tile, bounds);
-	      }
-	      return false;
-	    };
-
-	    /**
-	     * Convert display pixel coordinates (where (0,0) is the upper left) to
-	     * layer pixel coordinates (typically (0,0) is the center of the map and
-	     * the upper-left has the most negative values).
-	     * By default, this is done at the current base zoom level.
-	     *
-	     * @param pt: the point to convert.  If undefined, use the center of the
-	     *            display.
-	     * @param zoom: if specified, the zoom level to use.
-	     * @returns: the point in level coordinates.
-	     */
-	    this.displayToLevel = function (pt, zoom) {
-	      var map = this.map(),
-	          mapzoom = map.zoom(),
-	          roundzoom = this._options.tileRounding(mapzoom),
-	          unit = map.unitsPerPixel(zoom === undefined ? roundzoom : zoom);
-	      if (pt === undefined) {
-	        var size = map.size();
-	        pt = {x: size.width / 2, y: size.height / 2};
-	      }
-	      /* Reverse the y coordinate, since we expect the gcs coordinate system
-	       * to be right-handed and the level coordinate system to be
-	       * left-handed. */
-	      var gcsPt = map.displayToGcs(pt, this._options.gcs || null),
-	          lvlPt = {x: gcsPt.x / unit, y: this._topDown() * gcsPt.y / unit};
-	      return lvlPt;
-	    };
-
-	    /**
-	     * Get or set the tile url string or function.  If changed, load the new
-	     * tiles.
-	     *
-	     * @param {string|function} [url] The new tile url.
-	     * @returns {string|function|this}
-	     */
-	    this.url = function (url) {
-	      if (url === undefined) {
-	        return this._options.originalUrl;
-	      }
-	      if (url === this._options.originalUrl) {
-	        return this;
-	      }
-	      this._options.originalUrl = url;
-	      if ($.type(url) === 'string') {
-	        url = m_tileUrlFromTemplate(url);
-	      }
-	      this._options.url = url;
-	      this.reset();
-	      this.map().draw();
-	      return this;
-	    };
-
-	    /**
-	     * Get or set the subdomains used for templating.
-	     *
-	     * @param {string|list} [subdomains] A comma-separated list, a string of
-	     *      single character subdomains, or a list.
-	     * @returns {string|list|this}
-	     */
-	    this.subdomains = function (subdomains) {
-	      if (subdomains === undefined) {
-	        return this._options.subdomains;
-	      }
-	      if (subdomains) {
-	        if ($.type(subdomains) === 'string') {
-	          if (subdomains.indexOf(',') >= 0) {
-	            subdomains = subdomains.split(',');
-	          } else {
-	            subdomains = subdomains.split('');
-	          }
-	        }
-	        this._options.subdomains = subdomains;
-	        this.reset();
-	        this.map().draw();
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Return a value from the tileOffset function, caching it for different
-	     * levels.
-	     *
-	     * @param {Number} level the level to pass to the tileOffset function.
-	     * @returns {Object} a tile offset object with x and y properties.
-	     */
-	    this._tileOffset = function (level) {
-	      if (m_tileOffsetValues[level] === undefined) {
-	        m_tileOffsetValues[level] = this._options.tileOffset(level);
-	      }
-	      return m_tileOffsetValues[level];
-	    };
-
-	    /**
-	     * Get/Set visibility of the layer
-	     *
-	     * @param {boolean|undefined} val: undefined to return the visibility, a
-	     *    boolean to change the visibility.
-	     * @return {boolean|object} either the visibility (if getting) or the layer
-	     *    (if setting).
-	     */
-	    this.visible = function (val) {
-	      if (val === undefined) {
-	        return s_visible();
-	      }
-	      if (this.visible() !== val) {
-	        s_visible(val);
-
-	        if (val) {
-	          this._update();
-	        }
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Initialize after the layer is added to the map.
-	     */
-	    this._init = function () {
-	      var sublayer;
-
-	      // call super method
-	      s_init.apply(this, arguments);
-
-	      if (this.renderer() === null) {
-	        // Initialize sublayers in the correct order
-	        for (sublayer = 0; sublayer <= this._options.maxLevel; sublayer += 1) {
-	          this._getSubLayer(sublayer);
-	        }
-	      }
-	      return this;
-	    };
-
-	    /**
-	     * Clean up the layer.
-	     */
-	    this._exit = function () {
-	      this.reset();
-	      // call super method
-	      s_exit.apply(this, arguments);
-	      m_exited = true;
-	      return this;
-	    };
-
-	    adjustLayerForRenderer('tile', this);
-
-	    return this;
-	  };
-
-	  /**
-	   * This object contains the default options used to initialize the tileLayer.
-	   */
-	  tileLayer.defaults = {
-	    minLevel: 0,
-	    maxLevel: 18,
-	    tileOverlap: 0,
-	    tileWidth: 256,
-	    tileHeight: 256,
-	    wrapX: true,
-	    wrapY: false,
-	    url: null,
-	    subdomains: 'abc',
-	    tileOffset: function (level) {
-	      void level;
-	      return {x: 0, y: 0};
-	    },
-	    tilesMaxBounds: null,
-	    topDown: false,
-	    keepLower: true,
-	    // cacheSize: 400,  // set depending on keepLower
-	    tileRounding: Math.round,
-	    attribution: '',
-	    animationDuration: 0
-	  };
-
-	  inherit(tileLayer, featureLayer);
-	  return tileLayer;
-	})();
-
-
-/***/ }),
-/* 240 */
-/***/ (function(module, exports) {
-
-	module.exports = (function () {
-	  'use strict';
-
-	  /**
-	   * This class implements a simple cache for tile objects.  Each tile is
-	   * stored in cache object keyed by a configurable hashing function.  Another
-	   * array keeps track of last access times for each tile to purge old tiles
-	   * once the maximum cache size is reached.
-	   *
-	   * @class geo.tileCache
-	   *
-	   * @param {object?} [options] A configuratoin object for the cache
-	   * @param {number} [options.size=64] The maximum number of tiles to store
-	   */
-	  var tileCache = function (options) {
-	    if (!(this instanceof tileCache)) {
-	      return new tileCache(options);
-	    }
-	    options = options || {};
-	    this._size = options.size || 64;
-
-	    /**
-	     * Get/set the maximum cache size.
-	     */
-	    Object.defineProperty(this, 'size', {
-	      get: function () { return this._size; },
-	      set: function (n) {
-	        while (this._atime.length > n) {
-	          this.remove(this._atime[this._atime.length - 1]);
-	        }
-	        this._size = n;
-	      }
-	    });
-
-	    /**
-	     * Get the current cache size.
-	     */
-	    Object.defineProperty(this, 'length', {
-	      get: function () { return this._atime.length; }
-	    });
-
-	    /**
-	     * Get the position of the tile in the access queue.
-	     * @param {string} hash The tile's hash value
-	     * @returns {number} The position in the queue or -1
-	     */
-	    this._access = function (hash) {
-	      return this._atime.indexOf(hash);
-	    };
-
-	    /**
-	     * Remove a tile from the cache.
-	     * @param {string|geo.tile} tile The tile or its hash
-	     * @returns {bool} true if a tile was removed
-	     */
-	    this.remove = function (tile) {
-	      var hash = typeof tile === 'string' ? tile : tile.toString();
-
-	      // if the tile is not in the cache
-	      if (!(hash in this._cache)) {
-	        return false;
-	      }
-
-	      // Remove the tile from the access queue
-	      this._atime.splice(this._access(hash), 1);
-
-	      // Remove the tile from the cache
-	      delete this._cache[hash];
-	      return true;
-	    };
-
-	    /**
-	     * Remove all tiles from the cache.
-	     */
-	    this.clear = function () {
-	      this._cache = {};  // The hash -> tile mapping
-	      this._atime = [];  // The access queue (the hashes are stored)
-	      return this;
-	    };
-
-	    /**
-	     * Get a tile from the cache if it exists, otherwise
-	     * return null.  This method also moves the tile to the
-	     * front of the access queue.
-	     *
-	     * @param {string|geo.tile} hash The tile or the tile hash value
-	     * @param {boolean} noMove if true, don't move the tile to the front of the
-	     *     access queue.
-	     * @returns {geo.tile|null}
-	     */
-	    this.get = function (hash, noMove) {
-	      hash = typeof hash === 'string' ? hash : hash.toString();
-	      if (!(hash in this._cache)) {
-	        return null;
-	      }
-
-	      if (!noMove) {
-	        this._atime.splice(this._access(hash), 1);
-	        this._atime.unshift(hash);
-	      }
-	      return this._cache[hash];
-	    };
-
-	    /**
-	     * Add a tile to the cache.
-	     * @param {geo.tile} tile
-	     * @param {function} removeFunc if specified and tiles must be purged from
-	     *      the cache, call this function on each tile before purging.
-	     * @param {boolean} noPurge if true, don't purge tiles.
-	     */
-	    this.add = function (tile, removeFunc, noPurge) {
-	      // remove any existing tiles with the same hash
-	      this.remove(tile);
-	      var hash = tile.toString();
-
-	      // add the tile
-	      this._cache[hash] = tile;
-	      this._atime.unshift(hash);
-
-	      if (!noPurge) {
-	        this.purge(removeFunc);
-	      }
-	    };
-
-	    /**
-	     * Purge tiles from the cache if it is full.
-	     * @param {function} removeFunc if specified and tiles must be purged from
-	     *      the cache, call this function on each tile before purging.
-	     */
-	    this.purge = function (removeFunc) {
-	      var hash;
-	      while (this._atime.length > this.size) {
-	        hash = this._atime.pop();
-	        var tile = this._cache[hash];
-	        if (removeFunc) {
-	          removeFunc(tile);
-	        }
-	        delete this._cache[hash];
-	      }
-	    };
-
-	    this.clear();
-	    return this;
-	  };
-	  return tileCache;
-	})();
-
-
-/***/ }),
-/* 241 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class pathFeature
-	 *
-	 * @class geo.pathFeature
-	 * @extends geo.feature
-	 * @returns {geo.pathFeature}
-	 */
-	var pathFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof pathFeature)) {
-	    return new pathFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_position = arg.position === undefined ? [] : arg.position,
-	      s_init = this._init;
-
-	  /**
-	   * Get/Set positions
-	   *
-	   * @returns {geo.pathFeature}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_position;
-	    }
-	    // Copy incoming array of positions
-	    m_position = val;
-	    m_this.dataTime().modified();
-	    m_this.modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        'strokeWidth': function () { return 1; },
-	        'strokeColor': function () { return { r: 1.0, g: 1.0, b: 1.0 }; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    m_this.style(defaultStyle);
-
-	    if (m_position) {
-	      m_this.dataTime().modified();
-	    }
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(pathFeature, feature);
-	module.exports = pathFeature;
-
-
-/***/ }),
-/* 242 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-	var geo_event = __webpack_require__(9);
-	var util = __webpack_require__(83);
-
-	/**
-	 * Create a new instance of class imagemapFeature
-	 *
-	 * @class geo.pixelmapFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.feature
-	 * @param {Object|Function|HTMLImageElement} [url] URL of a pixel map or an
-	 *   HTML Image element.  The rgb data is interpretted as an index of the form
-	 *   0xbbggrr.  The alpha channel is ignored.
-	 * @param {Object|Function} [color] The color that should be used for each data
-	 *   element.  Data elements correspond to the indices in the pixel map.  If an
-	 *   index is larger than the number of data elements, it will be transparent.
-	 *   If there is more data than there are indices, it is ignored.
-	 * @param {Object|Function} [position] Position of the image.  Default is
-	 *   (data).  The position is an Object which specifies the corners of the
-	 *   quad: ll, lr, ur, ul.  At least two opposite corners must be specified.
-	 *   The corners do not have to physically correspond to the order specified,
-	 *   but rather correspond to that part of the image map.  If a corner is
-	 *   unspecified, it will use the x coordinate from one adjacent corner, the y
-	 *   coordinate from the other adjacent corner, and the average z value of
-	 *   those two corners.  For instance, if ul is unspecified, it is
-	 *   {x: ll.x, y: ur.y}.  Note that each quad is rendered as a pair of
-	 *   triangles: (ll, lr, ul) and (ur, ul, lr).  Nothing special is done for
-	 *   quads that are not convex or quads that have substantially different
-	 *   transformations for those two triangles.
-	 * @returns {geo.pixelmapFeature}
-	 */
-
-	var pixelmapFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof pixelmapFeature)) {
-	    return new pixelmapFeature(arg);
-	  }
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_quadFeature,
-	      m_srcImage,
-	      m_info,
-	      s_update = this._update,
-	      s_init = this._init,
-	      s_exit = this._exit;
-
-	  /**
-	   * Get/Set position accessor
-	   *
-	   * @returns {geo.pixelmap}
-	   */
-	  this.position = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('position');
-	    } else if (val !== m_this.style('position')) {
-	      m_this.style('position', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get/Set url accessor
-	   *
-	   * @returns {geo.pixelmap}
-	   */
-	  this.url = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('url');
-	    } else if (val !== m_this.style('url')) {
-	      m_srcImage = m_info = undefined;
-	      m_this.style('url', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the maximum index value from the pixelmap.  This is a value present in
-	   * the pixelmap.
-	   *
-	   * @returns {geo.pixelmap}
-	   */
-	  this.maxIndex = function () {
-	    if (m_info) {
-	      /* This isn't just m_info.mappedColors.length - 1, since there
-	       * may be more data than actual indices. */
-	      if (m_info.maxIndex === undefined) {
-	        m_info.maxIndex = 0;
-	        for (var idx in m_info.mappedColors) {
-	          if (m_info.mappedColors.hasOwnProperty(idx)) {
-	            m_info.maxIndex = Math.max(m_info.maxIndex, idx);
-	          }
-	        }
-	      }
-	      return m_info.maxIndex;
-	    }
-	  };
-
-	  /**
-	   * Get/Set color accessor
-	   *
-	   * @returns {geo.pixelmap}
-	   */
-	  this.color = function (val) {
-	    if (val === undefined) {
-	      return m_this.style('color');
-	    } else if (val !== m_this.style('color')) {
-	      m_this.style('color', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * If the specified coordinates are in the rendered quad, use the basis
-	   * information from the quad to determine the pixelmap index value so that it
-	   * can be included in the found results.
-	   */
-	  this.pointSearch = function (coordinate) {
-	    if (m_quadFeature && m_info) {
-	      var result = m_quadFeature.pointSearch(coordinate);
-	      if (result.index.length === 1 && result.extra && result.extra[result.index[0]].basis) {
-	        var basis = result.extra[result.index[0]].basis, x, y, idx;
-	        x = Math.floor(basis.x * m_info.width);
-	        y = Math.floor(basis.y * m_info.height);
-	        if (x >= 0 && x < m_info.width &&
-	            y >= 0 && y < m_info.height) {
-	          idx = m_info.indices[y * m_info.width + x];
-	          result = {
-	            index: [idx],
-	            found: [m_this.data()[idx]]
-	          };
-	          return result;
-	        }
-	      }
-	    }
-	    return {index: [], found: []};
-	  };
-
-	  /**
-	   * Build
-	   */
-	  this._build = function () {
-	    /* Set the build time at the start of the call.  A build can result in
-	     * drawing a quad, which can trigger a full layer update, which in tern
-	     * checks if this feature is built.  Setting the build time avoid calling
-	     * this a second time. */
-	    m_this.buildTime().modified();
-	    if (!m_srcImage) {
-	      var src = this.style.get('url')();
-	      if (util.isReadyImage(src)) {
-	        /* we have an already loaded image, so we can just use it. */
-	        m_srcImage = src;
-	        this._computePixelmap();
-	      } else if (src) {
-	        var defer = $.Deferred(), prev_onload, prev_onerror;
-	        if (src instanceof Image) {
-	          /* we have an unloaded image.  Hook to the load and error callbacks
-	           * so that when it is loaded we can use it. */
-	          m_srcImage = src;
-	          prev_onload = src.onload;
-	          prev_onerror = src.onerror;
-	        } else {
-	          /* we were given a url, so construct a new image */
-	          m_srcImage = new Image();
-	          // Only set the crossOrigin parameter if this is going across origins.
-	          if (src.indexOf(':') >= 0 &&
-	              src.indexOf('/') === src.indexOf(':') + 1) {
-	            m_srcImage.crossOrigin = this.style.get('crossDomain')() || 'anonymous';
-	          }
-	        }
-	        m_srcImage.onload = function () {
-	          if (prev_onload) {
-	            prev_onload.apply(this, arguments);
-	          }
-	          /* Only use this image if our pixelmap hasn't changed since we
-	           * attached our handler */
-	          if (m_this.style.get('url')() === src) {
-	            m_info = undefined;
-	            m_this._computePixelmap();
-	          }
-	          defer.resolve();
-	        };
-	        m_srcImage.onerror = function () {
-	          if (prev_onerror) {
-	            prev_onerror.apply(this, arguments);
-	          }
-	          defer.reject();
-	        };
-	        defer.promise(this);
-	        this.layer().addPromise(this);
-	        if (!(src instanceof Image)) {
-	          m_srcImage.src = src;
-	        }
-	      }
-	    } else if (m_info) {
-	      this._computePixelmap();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Compute information for this pixelmap image.  It is wasterful to call this
-	   * if the pixelmap has already been prepared (it is invalidated by a change
-	   * in the image).
-	   */
-	  this._preparePixelmap = function () {
-	    var i, idx, pixelData;
-
-	    if (!util.isReadyImage(m_srcImage)) {
-	      return;
-	    }
-	    m_info = {
-	      width: m_srcImage.naturalWidth,
-	      height: m_srcImage.naturalHeight,
-	      canvas: document.createElement('canvas'),
-	      updateIdx: {}
-	    };
-
-	    m_info.canvas.width = m_info.width;
-	    m_info.canvas.height = m_info.height;
-	    m_info.context = m_info.canvas.getContext('2d');
-
-	    m_info.context.drawImage(m_srcImage, 0, 0);
-	    m_info.imageData = m_info.context.getImageData(
-	      0, 0, m_info.canvas.width, m_info.canvas.height);
-	    pixelData = m_info.imageData.data;
-	    m_info.indices = new Array(pixelData.length / 4);
-	    m_info.area = pixelData.length / 4;
-
-	    m_info.mappedColors = {};
-	    for (i = 0; i < pixelData.length; i += 4) {
-	      idx = pixelData[i] + (pixelData[i + 1] << 8) + (pixelData[i + 2] << 16);
-	      m_info.indices[i / 4] = idx;
-	      if (!m_info.mappedColors[idx]) {
-	        m_info.mappedColors[idx] = {first: i / 4};
-	      }
-	      m_info.mappedColors[idx].last = i / 4;
-	    }
-	    return m_info;
-	  };
-
-	  /**
-	   * Given the loaded pixelmap image, create a canvas the size of the image.
-	   * Compute a color for each distinct index and recolor the canvas based on
-	   * thise colors, then draw the resultant image as a quad.
-	   */
-	  this._computePixelmap = function () {
-	    var data = m_this.data() || [],
-	        colorFunc = m_this.style.get('color'),
-	        i, idx, lastidx, color, pixelData, indices, mappedColors,
-	        updateFirst, updateLast = -1, update, prepared;
-
-	    if (!m_info) {
-	      if (!m_this._preparePixelmap()) {
-	        return;
-	      }
-	      prepared = true;
-	    }
-	    mappedColors = m_info.mappedColors;
-	    updateFirst = m_info.area;
-	    for (idx in mappedColors) {
-	      if (mappedColors.hasOwnProperty(idx)) {
-	        color = colorFunc(data[idx], +idx) || {};
-	        color = [
-	          (color.r || 0) * 255,
-	          (color.g || 0) * 255,
-	          (color.b || 0) * 255,
-	          color.a === undefined ? 255 : (color.a * 255)
-	        ];
-	        mappedColors[idx].update = (
-	          !mappedColors[idx].color ||
-	          mappedColors[idx].color[0] !== color[0] ||
-	          mappedColors[idx].color[1] !== color[1] ||
-	          mappedColors[idx].color[2] !== color[2] ||
-	          mappedColors[idx].color[3] !== color[3]);
-	        if (mappedColors[idx].update) {
-	          mappedColors[idx].color = color;
-	          updateFirst = Math.min(mappedColors[idx].first, updateFirst);
-	          updateLast = Math.max(mappedColors[idx].last, updateLast);
-	        }
-	      }
-	    }
-	    /* If nothing was updated, we are done */
-	    if (updateFirst >= updateLast) {
-	      return;
-	    }
-	    /* Update only the extent that has changed */
-	    pixelData = m_info.imageData.data;
-	    indices = m_info.indices;
-	    for (i = updateFirst; i <= updateLast; i += 1) {
-	      idx = indices[i];
-	      if (idx !== lastidx) {
-	        lastidx = idx;
-	        color = mappedColors[idx].color;
-	        update = mappedColors[idx].update;
-	      }
-	      if (update) {
-	        pixelData[i * 4] = color[0];
-	        pixelData[i * 4 + 1] = color[1];
-	        pixelData[i * 4 + 2] = color[2];
-	        pixelData[i * 4 + 3] = color[3];
-	      }
-	    }
-	    /* Place the updated area into the canvas */
-	    m_info.context.putImageData(
-	      m_info.imageData, 0, 0, 0, Math.floor(updateFirst / m_info.width),
-	      m_info.width, Math.ceil((updateLast + 1) / m_info.width));
-
-	    /* If we haven't made a quad feature, make one now.  The quad feature needs
-	     * to have the canvas capability. */
-	    if (!m_quadFeature) {
-	      m_quadFeature = m_this.layer().createFeature('quad', {
-	        selectionAPI: false,
-	        gcs: m_this.gcs(),
-	        visible: m_this.visible(undefined, true)
-	      });
-	      m_this.dependentFeatures([m_quadFeature]);
-	      m_quadFeature.style({
-	        image: m_info.canvas,
-	        position: m_this.style.get('position')})
-	      .data([{}])
-	      .draw();
-	    }
-	    /* If we prepared the pixelmap and rendered it, send a prepared event */
-	    if (prepared) {
-	      m_this.geoTrigger(geo_event.pixelmap.prepared, {
-	        pixelmap: m_this
-	      });
-	    }
-	  };
-
-	  /**
-	   * Update
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.buildTime().getMTime() <= m_this.dataTime().getMTime() ||
-	        m_this.updateTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Destroy
-	   * @memberof geo.pixelmapFeature
-	   */
-	  this._exit = function (abc) {
-	    if (m_quadFeature && m_this.layer()) {
-	      m_this.layer().deleteFeature(m_quadFeature);
-	      m_quadFeature = null;
-	      m_this.dependentFeatures([]);
-	    }
-	    s_exit();
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    arg = arg || {};
-	    s_init.call(m_this, arg);
-
-	    var style = $.extend(
-	      {},
-	      {
-	        color: function (d, idx) {
-	          return {
-	            r: (idx & 0xFF) / 255,
-	            g: ((idx >> 8) & 0xFF) / 255,
-	            b: ((idx >> 16) & 0xFF) / 255,
-	            a: 1
-	          };
-	        },
-	        position: function (d) { return d; }
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-	    if (arg.position !== undefined) {
-	      style.position = arg.position;
-	    }
-	    if (arg.url !== undefined) {
-	      style.url = arg.url;
-	    }
-	    if (arg.color !== undefined) {
-	      style.color = arg.color;
-	    }
-	    m_this.style(style);
-	    m_this.dataTime().modified();
-	  };
-
-	  return this;
-	};
-
-	/**
-	 * Create a pixelmapFeature from an object.
-	 *
-	 * @see {@link geo.feature.create}
-	 * @param {geo.layer} layer The layer to add the feature to
-	 * @param {geo.pixelmapFeature.spec} spec The object specification
-	 * @returns {geo.pixelmapFeature|null}
-	 */
-	pixelmapFeature.create = function (layer, spec) {
-	  'use strict';
-
-	  spec = spec || {};
-	  spec.type = 'pixelmap';
-	  return feature.create(layer, spec);
-	};
-
-	pixelmapFeature.capabilities = {
-	  /* core feature name -- support in any manner */
-	  feature: 'pixelmap'
-	};
-
-	inherit(pixelmapFeature, feature);
-	module.exports = pixelmapFeature;
-
-
-/***/ }),
-/* 243 */
-/***/ (function(module, exports) {
-
-	/*
-	 * Type definitions for jsdoc.
-	 */
-
-	/**
-	 * General object specification for map types.  Any additional values in the
-	 * object are passed to the map constructor.
-	 *
-	 * @typedef geo.map.spec
-	 * @type {object}
-	 * @property {object[]} [data=[]] The default data array to apply to each
-	 *      feature if none exists.
-	 * @property {geo.layer.spec[]} [layers=[]] Layers to create.
-	 */
-
-	/**
-	 * General representation of rectangular bounds in world coordinates.
-	 *
-	 * @typedef geo.geoBounds
-	 * @type {object}
-	 * @property {number} left Horizontal coordinate of the top-left corner.
-	 * @property {number} top Vertical coordinate of the top-left corner.
-	 * @property {number} right Horizontal coordinate of the bottom-right corner.
-	 * @property {number} bottom Vertical coordinate of the bottom-right corner.
-	 */
-
-	/**
-	 * A location and zoom value.
-	 *
-	 * @typedef geo.zoomAndCenter
-	 * @type {object}
-	 * @property {geo.geoPosition} center The center coordinates.
-	 * @property {number} zoom The zoom level.
-	 */
-
-	/**
-	 * General representation of rectangular bounds in pixel coordinates.
-	 *
-	 * @typedef geo.screenBounds
-	 * @type {object}
-	 * @property {geo.screenPosition} upperLeft Upper left corner.
-	 * @property {geo.screenPosition} upperRight Upper right corner.
-	 * @property {geo.screenPosition} lowerLeft Lower left corner.
-	 * @property {geo.screenPosition} lowerRight Lower right corner.
-	 */
-
-	/**
-	 * General representation of a point on the screen.
-	 *
-	 * @typedef geo.screenPosition
-	 * @type {object}
-	 * @property {number} x Horizontal coordinate in pixels.
-	 * @property {number} y Vertical coordinate in pixels.
-	 */
-
-	/**
-	 * General represention of a point on the earth.  The coordinates are most
-	 * commonly in longitude and latitude, but the coordinate system is changed
-	 * by the interface gcs.
-	 *
-	 * @typedef geo.geoPosition
-	 * @type {object}
-	 * @property {number} x Horizontal coordinate, often degrees longitude.
-	 * @property {number} y Vertical coordinate, often degrees latitude.
-	 * @property {number} [z=0] Altitude coordinate.
-	 */
-
-	/**
-	 * General represention of a two-dimensional point in any coordinate system.
-	 *
-	 * @typedef geo.point2D
-	 * @type {object}
-	 * @property {number} x Horizontal coordinate.
-	 * @property {number} y Vertical coordinate.
-	 */
-
-	/**
-	 * Represention of a point on the map.  The coordinates are in the map's
-	 * reference system, possibly with an affine transformation.
-	 *
-	 * @typedef geo.worldPosition
-	 * @type {object}
-	 * @property {number} x Horizontal coordinate in map coordinates.
-	 * @property {number} y Vertical coordinate in map coordinates.
-	 * @property {number} [z=0] Altitude coordinate, often zero.
-	 */
-
-	/**
-	 * Represention of a size in pixels.
-	 *
-	 * @typedef geo.screenSize
-	 * @type {object}
-	 * @property {number} width Width in pixels.
-	 * @property {number} height Height in pixels.
-	 */
-
-	/**
-	 * The status of all mouse buttons.
-	 *
-	 * @typedef geo.mouseButtons
-	 * @type {object}
-	 * @property {boolean} left True if the left mouse button is down.
-	 * @property {boolean} right True if the right mouse button is down.
-	 * @property {boolean} middle True if the middle mouse button is down.
-	 */
-
-	/**
-	 * The status of all modifier keys.  These are usually copied from the
-	 * standard DOM events.
-	 *
-	 * @typedef geo.modifierKeys
-	 * @type {object}
-	 * @property {boolean} alt True if the alt or option key is down.
-	 * @property {boolean} ctrl True if the control key is down.
-	 * @property {boolean} shift True if the shift key is down.
-	 * @property {boolean} meta True if the meta, windows, or command key
-	 *      is down.
-	 */
-
-	/**
-	 * The state of the mouse.
-	 *
-	 * @typedef geo.mouseState
-	 * @type {object}
-	 * @property {geo.screenPosition} page Mouse location in pixel space relative
-	 *      to the entire browser window.
-	 * @property {geo.screenPosition} map Mouse location in pixel space relative to
-	 *      the map DOM node.
-	 * @property {geo.geoPosition} geo Mouse location in interface gcs space.
-	 * @property {geo.geoPosition} mapgcs Mouse location in gcs space.
-	 * @property {geo.mouseButtons} buttons The current state of the mouse buttons.
-	 * @property {geo.modifierKeys} modifiers The current state of all modifier
-	 *      keys.
-	 * @property {Date} time The timestamp the event took place.
-	 * @property {number} deltaTime The time in milliseconds since the last mouse
-	 *      event.
-	 * @property {geo.screenPosition} velocity The velocity of the mouse pointer
-	 *      in pixels per millisecond.
-	 */
-
-	/**
-	 * The current brush selection (this is when a rectangular area is selected by
-	 * dragging).
-	 *
-	 * @typedef geo.brushSelection
-	 * @type {object}
-	 * @property {geo.screenBounds} display The selection bounds in pixel space.
-	 * @property {object} gcs The selection bounds in the map's gcs.
-	 * @property {geo.geoPosition} gcs.upperLeft Upper left corner.
-	 * @property {geo.geoPosition} gcs.upperRight Upper right corner.
-	 * @property {geo.geoPosition} gcs.lowerLeft Lower left corner.
-	 * @property {geo.geoPosition} gcs.lowerRight Lower right corner.
-	 * @property {geo.mouseState} mouse The current mouse state.
-	 * @property {geo.mouseState} origin The mouse state at the start of the
-	 *      brush action.
-	 */
-
-	/**
-	 * The conditions that are necessary to make an action occur.
-	 *
-	 * @typedef geo.actionRecord
-	 * @type {object}
-	 * @property {string} action The name of the action, from (@link geo.action}.
-	 * @property {string} [owner] A name of an owning process that can be used to
-	 *      locate or filter actions.
-	 * @property {string} [name] A human-readable name that can be used to locate
-	 *      or filter actions.
-	 * @property {string|object} input The name of an input that is used for the
-	 *      action, or an object with input names as keys and boolean values of
-	 *      inputs that are required to occur or required to not occur to trigger
-	 *      the action.  Input names include `left`, `right`, `middle` (for mouse
-	 *      buttons), `wheel` (the mouse wheel), `pan` (touch pan), `rotate` (touch
-	 *      rotate).
-	 * @property {string|object} [modifiers] The name of a modifier key or an
-	 *      object with modifiers as the keys and boolean values.  The listed
-	 *      modifiers must be set or unset depending on the boolean value.
-	 *      Modifiers include `shift`, `ctrl`, `alt`, and `meta`.
-	 * @property {boolean|string} [selectionRectangle] If truthy, a selection
-	 *      rectangle is shown during the action.  If a string, the name of an
-	 *      event that is triggered when the selection is complete.
-	 */
-
-	/**
-	 * The current action state a map interactor.
-	 *
-	 * @typedef geo.actionState
-	 * @type {object}
-	 * @property {string} action Name of the action that is being handled.
-	 * @property {geo.actionRecord} actionRecord The action record which triggered
-	 *      the current action.
-	 * @property {string} [origAction] The name of an action that triggered this
-	 *      action.
-	 * @property {geo.mouseState} origin The mouse state at the start of the
-	 *      action.
-	 * @property {number} initialZoom The zoom level at the start of the action.
-	 * @property {number} initialRotation The map's rotation in radians at the
-	 *      start of the action.
-	 * @property {number} initialEventRotation The rotation reported by the
-	 *      event that triggered this action.  For example, this could be the
-	 *      angle between two multi-touch points.
-	 * @property {object} delta The total movement of during the action in gcs
-	 *      coordinates.
-	 * @property {number} delta.x The horizontal movement during the action.
-	 * @property {number} delta.y The vertical movement during the action.
-	 * @property {boolean} boundDocumentHandlers `true` if the mouse is down and
-	 *      being tracked.
-	 * @property {Date} [start] The time when the action started.
-	 * @property {function} [handler] A function to call on every animation from
-	 *      while the action is occurring.
-	 * @property {geo.mouseState} [momentum] The mouse location when a momentum
-	 *      action starts.
-	 * @property {boolean} [zoomrotateAllowRotation] Truthy if enough movement has
-	 *      occurred that rotations are allowed.
-	 * @property {boolean} [zoomrotateAllowZoom] Truthy if enough movement has
-	 *      occurred that zooms are allowed.
-	 * @property {boolean} [zoomrotateAllowPan] Truthy if enough movement has
-	 *      occurred that pans are allowed.
-	 * @property {number} [lastRotationDelta] When rotating, the last amount that
-	 *      was rotated from the start of the action.  This is used to debounce
-	 *      jitter on touch events.
-	 * @property {geo.geoPosition} [initialEventGeo] The position of the mouse
-	 *      when significant movement first occurred.
-	 */
-
-	/**
-	 * A color value.  Although opacity can be specified, it is not always used.
-	 * When a string is specified, any of the following forms can be used:
-	 *   - CSS color name
-	 *   - `#rrggbb` The color specified in hexadecmial with each channel on a
-	 *     scale between 0 and 255 (`ff`).  Case insensitive.
-	 *   - `#rrggbbaa` The color and opacity specified in hexadecmial with each
-	 *     channel on a scale between 0 and 255 (`ff`).  Case insensitive.
-	 *   - `#rgb` The color specified in hexadecmial with each channel on a scale
-	 *     between 0 and 15 (`f`).  Case insensitive.
-	 *   - `#rgba` The color and opacity specified in hexadecmial with each channel
-	 *      on a scale between 0 and 15 (`f`).  Case insensitive.
-	 *   - `rgb(R, G, B)`, `rgb(R, G, B, A)`, `rgba(R, G, B)`, `rgba(R, G, B, A)`
-	 *     The color with the values of each color channel specified as numeric
-	 *     values between 0 and 255 or as percent (between 0 and 100) if a percent
-	 *     `%` follows the number.  The alpha (opacity) channel is optional and can
-	 *     either be a number between 0 and 1 or a percent.  White space may appear
-	 *     before and after numbers, and between the number and a percent symbol.
-	 *     Commas are not required.  A slash may be used as a separator before the
-	 *     alpha value instead of a comma.  The numbers conform to the CSS number
-	 *     specification, and can be signed floating-point values, possibly with
-	 *     exponents.
-	 *   - `hsl(H, S, L)`, `hsl(H, S, L, A)`, `hsla(H, S, L)`, `hsla(H, S, L, A)`
-	 *     Hue, saturation, and lightness with optional alpha (opacity).  Hue is a
-	 *     number between 0 and 360 and is interpretted as degrees unless an angle
-	 *     unit is specified.  CSS units of `deg`, `grad`, `rad`, and `turn` are
-	 *     supported.  Saturation and lightness are percentages between 0 and 100
-	 *     and *must* be followed by a percent `%` symbol.  The alpha (opacity)
-	 *     channel is optional and is specified as with `rgba(R, G, B, A)`.
-	 *   - `transparent` Black with 0 opacity.
-	 *
-	 * See {@link https://developer.mozilla.org/en-US/docs/Web/CSS/color_value} for
-	 * more details on CSS color values.
-	 *
-	 * @typedef geo.geoColor
-	 * @type {geo.geoColorObject|string}
-	 */
-
-	/**
-	 * A color value represented as an object.  Although opacity can be specified,
-	 * it is not always used.
-	 *
-	 * @typedef {object} geo.geoColorObject
-	 * @property {number} r The red intensity on a scale of [0-1].
-	 * @property {number} g The green intensity on a scale of [0-1].
-	 * @property {number} b The blue intensity on a scale of [0-1].
-	 * @property {number} [a] The opacity on a scale of [0-1].  If unspecified and
-	 *      used, it should be treated as 1.
-	 */
-
-
-/***/ }),
-/* 244 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var feature = __webpack_require__(207);
-
-	/**
-	 * Create a new instance of class vectorFeature
-	 *
-	 * @class geo.vectorFeature
-	 * @extends geo.feature
-	 * @returns {geo.vectorFeature}
-	 */
-	var vectorFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof vectorFeature)) {
-	    return new vectorFeature(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-
-	  arg = arg || {};
-	  feature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      s_style = this.style;
-
-	  /**
-	   * Get or set the accessor for the origin of the vector.  This is the point
-	   * that the vector base resides at.  Defaults to (0, 0, 0).
-	   * @param {geo.accessor|geo.geoPosition} [accessor] The origin accessor
-	   */
-	  this.origin = function (val) {
-	    if (val === undefined) {
-	      return s_style('origin');
-	    } else {
-	      s_style('origin', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Get or set the accessor for the displacement (coordinates) of the vector.
-	   * @param {geo.accessor|geo.geoPosition} [accessor] The accessor
-	   */
-	  this.delta = function (val) {
-	    if (val === undefined) {
-	      return s_style('delta');
-	    } else {
-	      s_style('delta', val);
-	      m_this.dataTime().modified();
-	      m_this.modified();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   * @protected
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-
-	    var defaultStyle = $.extend(
-	      {},
-	      {
-	        strokeColor: 'black',
-	        strokeWidth: 2.0,
-	        strokeOpacity: 1.0,
-	        originStyle: 'none',
-	        endStyle: 'arrow',
-	        origin: {x: 0, y: 0, z: 0},
-	        delta: function (d) { return d; },
-	        scale: null // size scaling factor (null -> renderer decides)
-	      },
-	      arg.style === undefined ? {} : arg.style
-	    );
-
-	    if (arg.origin !== undefined) {
-	      defaultStyle.origin = arg.origin;
-	    }
-
-	    m_this.style(defaultStyle);
-	    m_this.dataTime().modified();
-	  };
-	};
-
-	inherit(vectorFeature, feature);
-	module.exports = vectorFeature;
-
-
-/***/ }),
-/* 245 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = ("0.12.2");
-
-
-/***/ }),
-/* 246 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = ("a58e8d29261ef59219142cf01a3902718dbf6b95");
-
-
-/***/ }),
-/* 247 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var geo_event = __webpack_require__(9);
-	geo_event.d3 = {
-	  rescale: __webpack_require__(248)
-	};
-
-	/**
-	 * @namespace geo.d3
-	 */
-	module.exports = {
-	  graphFeature: __webpack_require__(249),
-	  lineFeature: __webpack_require__(250),
-	  object: __webpack_require__(251),
-	  pathFeature: __webpack_require__(253),
-	  pointFeature: __webpack_require__(254),
-	  quadFeature: __webpack_require__(255),
-	  renderer: __webpack_require__(256),
-	  tileLayer: __webpack_require__(257),
-	  uniqueID: __webpack_require__(252),
-	  vectorFeature: __webpack_require__(258)
-	};
-
-
-/***/ }),
-/* 248 */
-/***/ (function(module, exports) {
-
-	module.exports = 'geo_d3_rescale';
-
-
-/***/ }),
-/* 249 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var graphFeature = __webpack_require__(231);
-
-	/**
-	 * @class geo.d3.graphFeature
-	 * @extends geo.graphFeature
-	 */
-	var d3_graphFeature = function (arg) {
-	  'use strict';
-
-	  var m_this = this;
-
-	  if (!(this instanceof d3_graphFeature)) {
-	    return new d3_graphFeature(arg);
-	  }
-	  graphFeature.call(this, arg);
-
-	  /**
-	  *  Returns a d3 selection for the graph elements
-	  */
-	  this.select = function () {
-	    var renderer = m_this.renderer(),
-	        selection = {},
-	        node = m_this.nodeFeature(),
-	        links = m_this.linkFeatures();
-	    selection.nodes = renderer.select(node._d3id());
-	    selection.links = links.map(function (link) {
-	      return renderer.select(link._d3id());
-	    });
-	    return selection;
-	  };
-
-	  return this;
-	};
-
-	inherit(d3_graphFeature, graphFeature);
-
-	registerFeature('d3', 'graph', d3_graphFeature);
-
-	module.exports = d3_graphFeature;
-
-
-/***/ }),
-/* 250 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var lineFeature = __webpack_require__(206);
-
-	/**
-	 * Create a new instance of class lineFeature
-	 *
-	 * @class geo.d3.lineFeature
-	 * @extends geo.lineFeature
-	 * @extends geo.d3.object
-	 * @returns {geo.d3.lineFeature}
-	 */
-	var d3_lineFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof d3_lineFeature)) {
-	    return new d3_lineFeature(arg);
-	  }
-
-	  var d3 = __webpack_require__(226);
-	  var object = __webpack_require__(251);
-	  var timestamp = __webpack_require__(209);
-	  var util = __webpack_require__(83);
-
-	  arg = arg || {};
-	  lineFeature.call(this, arg);
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      m_buildTime = timestamp(),
-	      m_maxIdx = 0,
-	      s_update = this._update;
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-	    return m_this;
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    var data = m_this.data() || [],
-	        s_style = m_this.style(),
-	        m_renderer = m_this.renderer(),
-	        pos_func = m_this.position(),
-	        line, i;
-
-	    s_update.call(m_this);
-	    s_style.fill = function () { return false; };
-
-	    data.forEach(function (item, idx) {
-	      var m_style;
-	      var ln = m_this.line()(item, idx);
-
-	      var style = {}, key;
-	      function wrapStyle(func) {
-	        if (util.isFunction(func)) {
-	          return function () {
-	            return func(ln[0], 0, item, idx);
-	          };
-	        } else {
-	          return func;
-	        }
-	      }
-	      for (key in s_style) {
-	        if (s_style.hasOwnProperty(key)) {
-	          style[key] = wrapStyle(s_style[key]);
-	        }
-	      }
-
-	      line = d3.svg.line()
-	          .x(function (d) { return m_this.featureGcsToDisplay(d).x; })
-	          .y(function (d) { return m_this.featureGcsToDisplay(d).y; })
-	          .interpolate(m_this.style.get('closed')(item, idx) && ln.length > 2 ?
-	                       'linear-closed' : 'linear');
-	      // item is an object representing a single line
-	      // m_this.line()(item) is an array of coordinates
-	      m_style = {
-	        data: [ln.map(function (d, i) { return pos_func(d, i, item, idx); })],
-	        append: 'path',
-	        attributes: {
-	          d: line
-	        },
-	        id: m_this._d3id() + idx,
-	        classes: ['d3LineFeature', 'd3SubLine-' + idx],
-	        visible: m_this.visible,
-	        style: style
-	      };
-
-	      m_renderer._drawFeatures(m_style);
-	    });
-	    for (i = data.length; i < m_maxIdx; i += 1) {
-	      m_renderer._removeFeature(m_this._d3id() + i);
-	    }
-	    m_maxIdx = data.length;
-
-	    m_buildTime.modified();
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.getMTime() >= m_buildTime.getMTime()) {
-	      m_this._build();
-	    }
-
-	    return m_this;
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(d3_lineFeature, lineFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[lineFeature.capabilities.basic] = true;
-	capabilities[lineFeature.capabilities.multicolor] = false;
-
-	registerFeature('d3', 'line', d3_lineFeature, capabilities);
-
-	module.exports = d3_lineFeature;
-
-
-/***/ }),
-/* 251 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-
-	/**
-	 * D3 specific subclass of object which adds an id property for d3 selections
-	 * on groups of objects by class id.
-	 * @class geo.d3.object
-	 * @extends geo.sceneObject
-	 */
-
-	var d3_object = function (arg) {
-	  'use strict';
-
-	  var object = __webpack_require__(203);
-	  var uniqueID = __webpack_require__(252);
-
-	  // this is used to extend other geojs classes, so only generate
-	  // a new object when that is not the case... like if this === window
-	  if (!(this instanceof object)) {
-	    return new d3_object(arg);
-	  }
-	  sceneObject.call(this);
-
-	  var m_id = 'd3-' + uniqueID(),
-	      s_exit = this._exit,
-	      m_this = this,
-	      s_draw = this.draw;
-
-	  this._d3id = function () {
-	    return m_id;
-	  };
-
-	  /**
-	  *  Returns a d3 selection for the feature elements
-	  */
-	  this.select = function () {
-	    return m_this.renderer().select(m_this._d3id());
-	  };
-
-	  /**
-	  *  Redraw the object.
-	  */
-	  this.draw = function () {
-	    m_this._update();
-	    s_draw();
-	    return m_this;
-	  };
-
-	  /**
-	  *  Removes the element from the svg and the renderer
-	  */
-	  this._exit = function () {
-	    m_this.renderer()._removeFeature(m_this._d3id());
-	    s_exit();
-	  };
-
-	  return this;
-	};
-
-	inherit(d3_object, sceneObject);
-	module.exports = d3_object;
-
-
-/***/ }),
-/* 252 */
-/***/ (function(module, exports) {
-
-	var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz',
-	    strLength = 8;
-
-	/**
-	 * Get a random string to use as a div ID
-	 * @function geo.d3.uniqueID
-	 * @returns {string}
-	 */
-	var uniqueID = function () {
-	  var strArray = [],
-	      i;
-	  strArray.length = strLength;
-	  for (i = 0; i < strLength; i += 1) {
-	    strArray[i] = chars.charAt(Math.floor(Math.random() * chars.length));
-	  }
-	  return strArray.join('');
-	};
-
-	module.exports = uniqueID;
-
-
-/***/ }),
-/* 253 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var pathFeature = __webpack_require__(241);
-
-	/**
-	 * Create a new instance of class pathFeature
-	 *
-	 * @class geo.d3.pathFeature
-	 * @extends geo.pathFeature
-	 * @extends geo.d3.object
-	 * @returns {geo.d3.pathFeature}
-	 */
-	var d3_pathFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof d3_pathFeature)) {
-	    return new d3_pathFeature(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-	  var d3 = __webpack_require__(226);
-	  var object = __webpack_require__(251);
-	  var timestamp = __webpack_require__(209);
-
-	  arg = arg || {};
-	  pathFeature.call(this, arg);
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      m_buildTime = timestamp(),
-	      s_update = this._update,
-	      m_style = {};
-
-	  m_style.style = {};
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-	    return m_this;
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    var data = m_this.data() || [],
-	        s_style = m_this.style(),
-	        tmp, diag;
-	    s_update.call(m_this);
-
-	    diag = function (d) {
-	      var p = {
-	        source: d.source,
-	        target: d.target
-	      };
-	      return d3.svg.diagonal()(p);
-	    };
-	    tmp = [];
-	    data.forEach(function (d, i) {
-	      var src, trg;
-	      if (i < data.length - 1) {
-	        src = d;
-	        trg = data[i + 1];
-	        tmp.push({
-	          source: m_this.featureGcsToDisplay(src),
-	          target: m_this.featureGcsToDisplay(trg)
-	        });
-	      }
-	    });
-	    m_style.data = tmp;
-	    m_style.attributes = {
-	      d: diag
-	    };
-
-	    m_style.id = m_this._d3id();
-	    m_style.append = 'path';
-	    m_style.classes = ['d3PathFeature'];
-	    m_style.style = $.extend({
-	      'fill': function () { return false; },
-	      'fillColor': function () { return { r: 0, g: 0, b: 0 }; }
-	    }, s_style);
-	    m_style.visible = m_this.visible;
-
-	    m_this.renderer()._drawFeatures(m_style);
-
-	    m_buildTime.modified();
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.dataTime().getMTime() >= m_buildTime.getMTime()) {
-	      m_this._build();
-	    }
-
-	    return m_this;
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(d3_pathFeature, pathFeature);
-
-	registerFeature('d3', 'path', d3_pathFeature);
-
-	module.exports = d3_pathFeature;
-
-
-/***/ }),
-/* 254 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var pointFeature = __webpack_require__(212);
-
-	/**
-	 *
-	 * Create a new instance of pointFeature
-	 *
-	 * @class geo.d3.pointFeature
-	 * @extends geo.pointFeature
-	 * @extends geo.d3.object
-	 * @returns {geo.d3.pointFeature}
-	 */
-	var d3_pointFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof d3_pointFeature)) {
-	    return new d3_pointFeature(arg);
-	  }
-
-	  var d3_object = __webpack_require__(251);
-	  var timestamp = __webpack_require__(209);
-
-	  arg = arg || {};
-	  pointFeature.call(this, arg);
-	  d3_object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_buildTime = timestamp(),
-	      m_style = {};
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-	    return m_this;
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    var data = m_this.data(),
-	        s_style = m_this.style.get(),
-	        m_renderer = m_this.renderer(),
-	        pos_func = m_this.position();
-
-	    // call super-method
-	    s_update.call(m_this);
-
-	    // default to empty data array
-	    if (!data) { data = []; }
-
-	    // fill in d3 renderer style object defaults
-	    m_style.id = m_this._d3id();
-	    m_style.data = data;
-	    m_style.append = 'circle';
-	    m_style.attributes = {
-	      r: m_renderer._convertScale(s_style.radius),
-	      cx: function (d) {
-	        return m_this.featureGcsToDisplay(pos_func(d)).x;
-	      },
-	      cy: function (d) {
-	        return m_this.featureGcsToDisplay(pos_func(d)).y;
-	      }
-	    };
-	    m_style.style = s_style;
-	    m_style.classes = ['d3PointFeature'];
-	    m_style.visible = m_this.visible;
-
-	    // pass to renderer to draw
-	    m_this.renderer()._drawFeatures(m_style);
-
-	    // update time stamps
-	    m_buildTime.modified();
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.getMTime() >= m_buildTime.getMTime()) {
-	      m_this._build();
-	    }
-
-	    return m_this;
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(d3_pointFeature, pointFeature);
-
-	// Now register it
-	registerFeature('d3', 'point', d3_pointFeature);
-
-	module.exports = d3_pointFeature;
-
-
-/***/ }),
-/* 255 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var quadFeature = __webpack_require__(223);
-
-	/**
-	 * Create a new instance of class quadFeature
-	 *
-	 * @class geo.d3.quadFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.quadFeature
-	 * @returns {geo.d3.quadFeature}
-	 */
-	var d3_quadFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof d3_quadFeature)) {
-	    return new d3_quadFeature(arg);
-	  }
-
-	  var $ = __webpack_require__(1);
-	  var d3 = __webpack_require__(226);
-	  var object = __webpack_require__(251);
-
-	  quadFeature.call(this, arg);
-	  object.call(this);
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_quads;
-
-	  /**
-	   * Build this feature
-	   */
-	  this._build = function () {
-	    if (!this.position()) {
-	      return;
-	    }
-	    var renderer = this.renderer(),
-	        map = renderer.layer().map();
-
-	    m_quads = this._generateQuads();
-
-	    var data = [];
-	    $.each(m_quads.clrQuads, function (idx, quad) {
-	      data.push({type: 'clr', quad: quad, zIndex: quad.pos[2]});
-	    });
-	    $.each(m_quads.imgQuads, function (idx, quad) {
-	      if (quad.image) {
-	        data.push({type: 'img', quad: quad, zIndex: quad.pos[2]});
-	      }
-	    });
-
-	    var feature = {
-	      id: this._d3id(),
-	      data: data,
-	      dataIndex: function (d) {
-	        return d.quad.quadId;
-	      },
-	      append: function (d) {
-	        var ns = this.namespaceURI,
-	            element = d.type === 'clr' ? 'polygon' : 'image';
-	        return (ns ? document.createElementNS(ns, element) :
-	                document.createElement(element));
-	      },
-	      attributes: {
-	        fill: function (d) {
-	          if (d.type === 'clr') {
-	            return d3.rgb(255 * d.quad.color.r, 255 * d.quad.color.g,
-	                          255 * d.quad.color.b);
-	          }
-	          /* set some styles here */
-	          if (d.quad.opacity !== 1) {
-	            d3.select(this).style('opacity', d.quad.opacity);
-	          }
-	        },
-	        height: function (d) {
-	          return d.type === 'clr' ? undefined : 1;
-	        },
-	        points: function (d) {
-	          if (d.type === 'clr' && !d.points) {
-	            var points = [], i;
-	            for (i = 0; i < d.quad.pos.length; i += 3) {
-	              var p = {
-	                x: d.quad.pos[i],
-	                y: d.quad.pos[i + 1],
-	                z: d.quad.pos[i + 2]
-	              };
-	              /* We don't use 'p = m_this.featureGcsToDisplay(p);' because the
-	               * quads have already been converted to the map's gcs (no longer
-	               * the feature's gcs or map's ingcs). */
-	              p = map.gcsToDisplay(p, null);
-	              p = renderer.baseToLocal(p);
-	              points.push('' + p.x + ',' + p.y);
-	            }
-	            d.points = (points[0] + ' ' + points[1] + ' ' + points[3] + ' ' +
-	                        points[2]);
-	          }
-	          return d.type === 'clr' ? d.points : undefined;
-	        },
-	        preserveAspectRatio: function (d) {
-	          return d.type === 'clr' ? undefined : 'none';
-	        },
-	        reference: function (d) {
-	          return d.quad.reference;
-	        },
-	        stroke: false,
-	        transform: function (d) {
-	          if (d.type === 'img' && d.quad.image && !d.svgTransform) {
-	            var pos = [], area, maxarea = -1, maxv, i, imgscale,
-	                imgw = d.quad.image.width, imgh = d.quad.image.height;
-	            for (i = 0; i < d.quad.pos.length; i += 3) {
-	              var p = {
-	                x: d.quad.pos[i],
-	                y: d.quad.pos[i + 1],
-	                z: d.quad.pos[i + 2]
-	              };
-	              /* We don't use 'p = m_this.featureGcsToDisplay(p);' because the
-	               * quads have already been converted to the map's gcs (no longer
-	               * the feature's gcs or map's ingcs). */
-	              p = map.gcsToDisplay(p, null);
-	              p = renderer.baseToLocal(p);
-	              pos.push(p);
-	            }
-	            /* We can only fit three corners of the quad to the image, but we
-	             * get to pick which three.  We choose to always include the
-	             * largest of the triangles formed by a set of three vertices.  The
-	             * image is always rendered as a parallelogram, so it may be larger
-	             * than desired, and, for convex quads, miss some of the intended
-	             * area. */
-	            for (i = 0; i < 4; i += 1) {
-	              area = Math.abs(
-	                pos[(i + 1) % 4].x * (pos[(i + 2) % 4].y - pos[(i + 3) % 4].y) +
-	                pos[(i + 2) % 4].x * (pos[(i + 3) % 4].y - pos[(i + 1) % 4].y) +
-	                pos[(i + 3) % 4].x * (pos[(i + 1) % 4].y - pos[(i + 2) % 4].y)) / 2;
-	              if (area > maxarea) {
-	                maxarea = area;
-	                maxv = i;
-	              }
-	            }
-	            d.svgTransform = [
-	              maxv === 3 || maxv === 2 ? pos[1].x - pos[0].x : pos[3].x - pos[2].x,
-	              maxv === 3 || maxv === 2 ? pos[1].y - pos[0].y : pos[3].y - pos[2].y,
-	              maxv === 0 || maxv === 2 ? pos[1].x - pos[3].x : pos[0].x - pos[2].x,
-	              maxv === 0 || maxv === 2 ? pos[1].y - pos[3].y : pos[0].y - pos[2].y,
-	              maxv === 2 ? pos[3].x + pos[0].x - pos[1].x : pos[2].x,
-	              maxv === 2 ? pos[3].y + pos[0].y - pos[1].y : pos[2].y
-	            ];
-	            if (Math.abs(d.svgTransform[1] / imgw) < 1e-6 &&
-	                Math.abs(d.svgTransform[2] / imgh) < 1e-6) {
-	              imgscale = d.svgTransform[0] / imgw;
-	              d.svgTransform[4] = Math.round(d.svgTransform[4] / imgscale) * imgscale;
-	              imgscale = d.svgTransform[3] / imgh;
-	              d.svgTransform[5] = Math.round(d.svgTransform[5] / imgscale) * imgscale;
-	            }
-	          }
-	          return ((d.type !== 'img' || !d.quad.image) ? undefined :
-	                  'matrix(' + d.svgTransform.join(' ') + ')');
-	        },
-	        width: function (d) {
-	          return d.type === 'clr' ? undefined : 1;
-	        },
-	        x: function (d) {
-	          return d.type === 'clr' ? undefined : 0;
-	        },
-	        'xlink:href': function (d) {
-	          return ((d.type === 'clr' || !d.quad.image) ? undefined :
-	                  d.quad.image.src);
-	        },
-	        y: function (d) {
-	          return d.type === 'clr' ? undefined : 0;
-	        }
-	      },
-	      style: {
-	        fillOpacity: function (d) {
-	          return d.type === 'clr' ? d.quad.opacity : undefined;
-	        }
-	      },
-	      onlyRenderNew: !this.style('previewColor') && !this.style('previewImage'),
-	      sortByZ: true,
-	      visible: m_this.visible,
-	      classes: ['d3QuadFeature']
-	    };
-	    renderer._drawFeatures(feature);
-
-	    this.buildTime().modified();
-	  };
-
-	  /**
-	   * Update
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.buildTime().getMTime() <= m_this.dataTime().getMTime() ||
-	        m_this.buildTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    s_init.call(m_this, arg);
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    s_exit.call(m_this);
-	  };
-
-	  m_this._init(arg);
-	  return this;
-	};
-
-	inherit(d3_quadFeature, quadFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[quadFeature.capabilities.color] = true;
-	capabilities[quadFeature.capabilities.image] = true;
-	capabilities[quadFeature.capabilities.imageCrop] = false;
-	capabilities[quadFeature.capabilities.imageFixedScale] = false;
-	capabilities[quadFeature.capabilities.imageFull] = false;
-	capabilities[quadFeature.capabilities.canvas] = false;
-
-	registerFeature('d3', 'quad', d3_quadFeature, capabilities);
-	module.exports = d3_quadFeature;
-
-
-/***/ }),
-/* 256 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerRenderer = __webpack_require__(201).registerRenderer;
-	var renderer = __webpack_require__(202);
-
-	/**
-	 * Create a new instance of class d3Renderer
-	 *
-	 * @class geo.d3.renderer
-	 * @extends geo.renderer
-	 * @returns {geo.d3.d3Renderer}
-	 */
-	var d3Renderer = function (arg) {
-	  'use strict';
-
-	  var d3 = __webpack_require__(226);
-	  var object = __webpack_require__(251);
-	  var util = __webpack_require__(83);
-	  var geo_event = __webpack_require__(9);
-	  var d3Rescale = __webpack_require__(248);
-
-	  if (!(this instanceof d3Renderer)) {
-	    return new d3Renderer(arg);
-	  }
-	  renderer.call(this, arg);
-
-	  var s_exit = this._exit;
-
-	  object.call(this, arg);
-
-	  arg = arg || {};
-
-	  var m_this = this,
-	      m_sticky = null,
-	      m_features = {},
-	      m_corners = null,
-	      m_width = null,
-	      m_height = null,
-	      m_diagonal = null,
-	      m_scale = 1,
-	      m_transform = {dx: 0, dy: 0, rx: 0, ry: 0, rotation: 0},
-	      m_renderIds = {},
-	      m_removeIds = {},
-	      m_svg = null,
-	      m_defs = null;
-
-	  /**
-	   * Set attributes to a d3 selection.
-	   * @private
-	   */
-	  function setAttrs(select, attrs) {
-	    var key;
-	    for (key in attrs) {
-	      if (attrs.hasOwnProperty(key)) {
-	        select.attr(key, attrs[key]);
-	      }
-	    }
-	  }
-
-	  /**
-	   * Meta functions for converting from geojs styles to d3.
-	   * @private
-	   */
-	  this._convertColor = function (f, g) {
-	    f = util.ensureFunction(f);
-	    g = g || function () { return true; };
-	    return function () {
-	      var c = 'none';
-	      if (g.apply(m_this, arguments)) {
-	        c = f.apply(m_this, arguments);
-	        if (c.hasOwnProperty('r') &&
-	            c.hasOwnProperty('g') &&
-	            c.hasOwnProperty('b')) {
-	          c = d3.rgb(255 * c.r, 255 * c.g, 255 * c.b);
-	        }
-	      }
-	      return c;
-	    };
-	  };
-
-	  this._convertScale = function (f) {
-	    f = util.ensureFunction(f);
-	    return function () {
-	      return f.apply(m_this, arguments) / m_scale;
-	    };
-	  };
-
-	  /**
-	   * Set styles to a d3 selection. Ignores unkown style keys.
-	   * @private
-	   */
-	  function setStyles(select, styles) {
-	    var key, k, f;
-	    function fillFunc() {
-	      if (styles.fill.apply(m_this, arguments)) {
-	        return null;
-	      } else {
-	        return 'none';
-	      }
-	    }
-	    function strokeFunc() {
-	      if (styles.stroke.apply(m_this, arguments)) {
-	        return null;
-	      } else {
-	        return 'none';
-	      }
-	    }
-	    for (key in styles) {
-	      if (styles.hasOwnProperty(key)) {
-	        f = null;
-	        k = null;
-	        if (key === 'strokeColor') {
-	          k = 'stroke';
-	          f = m_this._convertColor(styles[key], styles.stroke);
-	        } else if (key === 'stroke' && styles[key] &&
-	                   !styles.hasOwnProperty('strokeColor')) {
-	          k = 'stroke';
-	          f = strokeFunc;
-	        } else if (key === 'strokeWidth') {
-	          k = 'stroke-width';
-	          f = m_this._convertScale(styles[key]);
-	        } else if (key === 'strokeOpacity') {
-	          k = 'stroke-opacity';
-	          f = styles[key];
-	        } else if (key === 'fillColor') {
-	          k = 'fill';
-	          f = m_this._convertColor(styles[key], styles.fill);
-	        } else if (key === 'fill' && !styles.hasOwnProperty('fillColor')) {
-	          k = 'fill';
-	          f = fillFunc;
-	        } else if (key === 'fillOpacity') {
-	          k = 'fill-opacity';
-	          f = styles[key];
-	        } else if (key === 'lineCap') {
-	          k = 'stroke-linecap';
-	          f = styles[key];
-	        } else if (key === 'lineJoin') {
-	          k = 'stroke-linejoin';
-	          f = styles[key];
-	        } else if (key === 'miterLimit') {
-	          k = 'stroke-miterlimit';
-	          f = styles[key];
-	        }
-	        if (k) {
-	          select.style(k, f);
-	        }
-	      }
-	    }
-	  }
-
-	  /**
-	   * Get the svg group element associated with this renderer instance, or of a
-	   * group within the render instance.
-	   *
-	   * @private
-	   */
-	  function getGroup(parentId) {
-	    if (parentId) {
-	      return m_svg.select('.group-' + parentId);
-	    }
-	    return m_svg.select('.group-' + m_this._d3id());
-	  }
-
-	  /**
-	   * Set the initial lat-lon coordinates of the map view.
-	   * @private
-	   */
-	  function initCorners() {
-	    var layer = m_this.layer(),
-	        map = layer.map(),
-	        width = map.size().width,
-	        height = map.size().height;
-
-	    m_width = width;
-	    m_height = height;
-	    if (!m_width || !m_height) {
-	      throw new Error('Map layer has size 0');
-	    }
-	    m_diagonal = Math.pow(width * width + height * height, 0.5);
-	    m_corners = {
-	      upperLeft: map.displayToGcs({x: 0, y: 0}, null),
-	      lowerRight: map.displayToGcs({x: width, y: height}, null),
-	      center: map.displayToGcs({x: width / 2, y: height / 2}, null)
-	    };
-	  }
-
-	  /**
-	   * Set the translation, scale, and zoom for the current view.
-	   * @note rotation not yet supported
-	   * @private
-	   */
-	  this._setTransform = function () {
-	    if (!m_corners) {
-	      initCorners();
-	    }
-
-	    if (!m_sticky) {
-	      return;
-	    }
-
-	    var layer = m_this.layer();
-
-	    var map = layer.map(),
-	        upperLeft = map.gcsToDisplay(m_corners.upperLeft, null),
-	        lowerRight = map.gcsToDisplay(m_corners.lowerRight, null),
-	        center = map.gcsToDisplay(m_corners.center, null),
-	        group = getGroup(),
-	        dx, dy, scale, rotation, rx, ry;
-
-	    scale = Math.sqrt(
-	      Math.pow(lowerRight.y - upperLeft.y, 2) +
-	      Math.pow(lowerRight.x - upperLeft.x, 2)) / m_diagonal;
-	    // calculate the translation
-	    rotation = map.rotation();
-	    rx = -m_width / 2;
-	    ry = -m_height / 2;
-	    dx = scale * rx + center.x;
-	    dy = scale * ry + center.y;
-
-	    // set the group transform property
-	    if (!rotation) {
-	      dx = Math.round(dx);
-	      dy = Math.round(dy);
-	    }
-	    var transform = 'matrix(' + [scale, 0, 0, scale, dx, dy].join() + ')';
-	    if (rotation) {
-	      transform += ' rotate(' + [
-	        rotation * 180 / Math.PI, -rx, -ry].join() + ')';
-	    }
-	    group.attr('transform', transform);
-
-	    // set internal variables
-	    m_scale = scale;
-	    m_transform.dx = dx;
-	    m_transform.dy = dy;
-	    m_transform.rx = rx;
-	    m_transform.ry = ry;
-	    m_transform.rotation = rotation;
-	  };
-
-	  /**
-	   * Convert from screen pixel coordinates to the local coordinate system
-	   * in the SVG group element taking into account the transform.
-	   * @private
-	   */
-	  this.baseToLocal = function (pt) {
-	    pt = {
-	      x: (pt.x - m_transform.dx) / m_scale,
-	      y: (pt.y - m_transform.dy) / m_scale
-	    };
-	    if (m_transform.rotation) {
-	      var sinr = Math.sin(-m_transform.rotation),
-	          cosr = Math.cos(-m_transform.rotation);
-	      var x = pt.x + m_transform.rx, y = pt.y + m_transform.ry;
-	      pt = {
-	        x: x * cosr - y * sinr - m_transform.rx,
-	        y: x * sinr + y * cosr - m_transform.ry
-	      };
-	    }
-	    return pt;
-	  };
-
-	  /**
-	   * Convert from the local coordinate system in the SVG group element
-	   * to screen pixel coordinates.
-	   * @private
-	   */
-	  this.localToBase = function (pt) {
-	    if (m_transform.rotation) {
-	      var sinr = Math.sin(m_transform.rotation),
-	          cosr = Math.cos(m_transform.rotation);
-	      var x = pt.x + m_transform.rx, y = pt.y + m_transform.ry;
-	      pt = {
-	        x: x * cosr - y * sinr - m_transform.rx,
-	        y: x * sinr + y * cosr - m_transform.ry
-	      };
-	    }
-	    pt = {
-	      x: pt.x * m_scale + m_transform.dx,
-	      y: pt.y * m_scale + m_transform.dy
-	    };
-	    return pt;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    if (!m_this.canvas()) {
-	      var canvas;
-	      arg.widget = arg.widget || false;
-
-	      if ('d3Parent' in arg) {
-	        m_svg = d3.select(arg.d3Parent).append('svg');
-	      } else {
-	        m_svg = d3.select(m_this.layer().node().get(0)).append('svg');
-	      }
-	      m_svg.attr('display', 'block');
-
-	      // create a global svg definitions element
-	      m_defs = m_svg.append('defs');
-
-	      var shadow = m_defs
-	        .append('filter')
-	          .attr('id', 'geo-highlight')
-	          .attr('x', '-100%')
-	          .attr('y', '-100%')
-	          .attr('width', '300%')
-	          .attr('height', '300%');
-	      shadow
-	        .append('feMorphology')
-	          .attr('operator', 'dilate')
-	          .attr('radius', 2)
-	          .attr('in', 'SourceAlpha')
-	          .attr('result', 'dilateOut');
-	      shadow
-	        .append('feGaussianBlur')
-	          .attr('stdDeviation', 5)
-	          .attr('in', 'dilateOut')
-	          .attr('result', 'blurOut');
-	      shadow
-	        .append('feColorMatrix')
-	          .attr('type', 'matrix')
-	          .attr('values', '-1 0 0 0 1  0 -1 0 0 1  0 0 -1 0 1  0 0 0 1 0')
-	          .attr('in', 'blurOut')
-	          .attr('result', 'invertOut');
-	      shadow
-	        .append('feBlend')
-	          .attr('in', 'SourceGraphic')
-	          .attr('in2', 'invertOut')
-	          .attr('mode', 'normal');
-
-	      if (!arg.widget) {
-	        canvas = m_svg.append('g');
-	      }
-
-	      shadow = m_defs.append('filter')
-	          .attr('id', 'geo-blur')
-	          .attr('x', '-100%')
-	          .attr('y', '-100%')
-	          .attr('width', '300%')
-	          .attr('height', '300%');
-
-	      shadow
-	        .append('feGaussianBlur')
-	          .attr('stdDeviation', 20)
-	          .attr('in', 'SourceGraphic');
-
-	      m_sticky = m_this.layer().sticky();
-	      m_svg.attr('class', m_this._d3id());
-	      m_svg.attr('width', m_this.layer().node().width());
-	      m_svg.attr('height', m_this.layer().node().height());
-
-	      if (!arg.widget) {
-	        canvas.attr('class', 'group-' + m_this._d3id());
-
-	        m_this.canvas(canvas);
-	      } else {
-	        m_this.canvas(m_svg);
-	      }
-	    }
-	    m_this._setTransform();
-	  };
-
-	  /**
-	   * Get API used by the renderer
-	   */
-	  this.api = function () {
-	    return 'd3';
-	  };
-
-	  /**
-	   * Return the current scaling factor to build features that shouldn't
-	   * change size during zooms.  For example:
-	   *
-	   *  selection.append('circle')
-	   *    .attr('r', r0 / renderer.scaleFactor());
-	   *
-	   * This will create a circle element with radius r0 independent of the
-	   * current zoom level.
-	   */
-	  this.scaleFactor = function () {
-	    return m_scale;
-	  };
-
-	  /**
-	   * Handle resize event
-	   */
-	  this._resize = function (x, y, w, h) {
-	    if (!m_corners) {
-	      initCorners();
-	    }
-	    m_svg.attr('width', w);
-	    m_svg.attr('height', h);
-	    m_this._setTransform();
-	    m_this.layer().geoTrigger(d3Rescale, { scale: m_scale }, true);
-	  };
-
-	  /**
-	   * Update noop for geo.d3.object api.
-	   */
-	  this._update = function () {
-	  };
-
-	  /**
-	   * Exit
-	   */
-	  this._exit = function () {
-	    m_features = {};
-	    m_this.canvas().remove();
-	    m_svg.remove();
-	    m_svg = undefined;
-	    m_defs.remove();
-	    m_defs = undefined;
-	    m_renderIds = {};
-	    m_removeIds = {};
-	    s_exit();
-	  };
-
-	  /**
-	   * Get the definitions dom element for the layer
-	   * @protected
-	   */
-	  this._definitions = function () {
-	    return m_defs;
-	  };
-
-	  /**
-	   * Create a new feature element from an object that describes the feature
-	   * attributes.  To be called from feature classes only.
-	   *
-	   * Input:
-	   *  {
-	   *    id:         A unique string identifying the feature.
-	   *    data:       Array of data objects used in a d3 data method.
-	   *    dataIndex:  A function that returns a unique id for each data element.
-	   *    defs:       If set, a dictionary with values to render in the defs
-	   *                section.  This can contain data, index, append, attributes,
-	   *                classes, style, and enter.  enter is a function that is
-	   *                called on new elements.
-	   *    style:      An object containing element CSS styles.
-	   *    attributes: An object containing element attributes.
-	   *    classes:    An array of classes to add to the elements.
-	   *    append:     The element type as used in d3 append methods.
-	   *    onlyRenderNew: a boolean.  If true, features only get attributes and
-	   *                styles set when new.  If false, features always have
-	   *                attributes and styles updated.
-	   *    sortByZ:    a boolean.  If true, sort features by the d.zIndex.
-	   *    parentId:   If set, the group ID of the parent element.
-	   *  }
-	   */
-	  this._drawFeatures = function (arg) {
-	    m_features[arg.id] = {
-	      data: arg.data,
-	      index: arg.dataIndex,
-	      style: arg.style,
-	      visible: arg.visible,
-	      attributes: arg.attributes,
-	      classes: arg.classes,
-	      append: arg.append,
-	      onlyRenderNew: arg.onlyRenderNew,
-	      sortByZ: arg.sortByZ,
-	      parentId: arg.parentId
-	    };
-	    return m_this.__render(arg.id, arg.parentId);
-	  };
-
-	  /**
-	  *  Updates a feature by performing a d3 data join.  If no input id is
-	  *  provided then this method will update all features.
-	  */
-	  this.__render = function (id, parentId) {
-	    var key;
-	    if (id === undefined) {
-	      for (key in m_features) {
-	        if (m_features.hasOwnProperty(key)) {
-	          m_this.__render(key);
-	        }
-	      }
-	      return m_this;
-	    }
-	    if (parentId) {
-	      m_this._renderFeature(id, parentId);
-	    } else {
-	      m_renderIds[id] = true;
-	      m_this.layer().map().scheduleAnimationFrame(m_this._renderFrame);
-	    }
-	  };
-
-	  this._renderFrame = function () {
-	    var id;
-	    for (id in m_removeIds) {
-	      m_this.select(id).remove();
-	      m_defs.selectAll('.' + id).remove();
-	    }
-	    m_removeIds = {};
-	    var ids = m_renderIds;
-	    m_renderIds = {};
-	    for (id in ids) {
-	      if (ids.hasOwnProperty(id)) {
-	        m_this._renderFeature(id);
-	      }
-	    }
-	  };
-
-	  this._renderFeature = function (id, parentId) {
-	    if (!m_features[id]) {
-	      return;
-	    }
-	    var data = m_features[id].data,
-	        index = m_features[id].index,
-	        style = m_features[id].style,
-	        visible = m_features[id].visible,
-	        attributes = m_features[id].attributes,
-	        classes = m_features[id].classes,
-	        append = m_features[id].append,
-	        selection = m_this.select(id, parentId).data(data, index),
-	        entries, rendersel;
-	    entries = selection.enter().append(append);
-	    selection.exit().remove();
-	    rendersel = m_features[id].onlyRenderNew ? entries : selection;
-	    setAttrs(rendersel, attributes);
-	    rendersel.attr('class', classes.concat([id]).join(' '));
-	    setStyles(rendersel, style);
-	    if (visible) {
-	      rendersel.style('visibility', visible() ? 'visible' : 'hidden');
-	    }
-	    if (entries.size() && m_features[id].sortByZ) {
-	      selection.sort(function (a, b) {
-	        return (a.zIndex || 0) - (b.zIndex || 0);
-	      });
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	  *  Returns a d3 selection for the given feature id.
-	  */
-	  this.select = function (id, parentId) {
-	    return getGroup(parentId).selectAll('.' + id);
-	  };
-
-	  /**
-	  *  Removes a feature from the layer.
-	  */
-	  this._removeFeature = function (id) {
-	    m_removeIds[id] = true;
-	    m_this.layer().map().scheduleAnimationFrame(m_this._renderFrame);
-	    delete m_features[id];
-	    if (m_renderIds[id]) {
-	      delete m_renderIds[id];
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	  *  Override draw method to do nothing.
-	  */
-	  this.draw = function () {
-	  };
-
-	  // connect to pan event
-	  this.layer().geoOn(geo_event.pan, m_this._setTransform);
-
-	  // connect to rotate event
-	  this.layer().geoOn(geo_event.rotate, m_this._setTransform);
-
-	  // connect to zoom event
-	  this.layer().geoOn(geo_event.zoom, function () {
-	    m_this._setTransform();
-	    m_this.__render();
-	    m_this.layer().geoTrigger(d3Rescale, { scale: m_scale }, true);
-	  });
-
-	  this.layer().geoOn(geo_event.resize, function (event) {
-	    m_this._resize(event.x, event.y, event.width, event.height);
-	  });
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(d3Renderer, renderer);
-
-	registerRenderer('d3', d3Renderer);
-
-	(function () {
-	  'use strict';
-
-	  /**
-	   * Report if the d3 renderer is supported.  This is just a check if d3 is
-	   * available.
-	   *
-	   * @returns {boolean} true if available.
-	   */
-	  d3Renderer.supported = function () {
-	    if (!__webpack_require__.m[/*require.resolve*/(226)]) {  // eslint-disable-line
-	      return false;
-	    }
-	    var d3 = __webpack_require__(226);
-	    return d3 !== undefined;
-	  };
-
-	  /**
-	   * If the d3 renderer is not supported, supply the name of a renderer that
-	   * should be used instead.  This asks for the null renderer.
-	   *
-	   * @returns null for the null renderer.
-	   */
-	  d3Renderer.fallback = function () {
-	    return null;
-	  };
-	})();
-
-	module.exports = d3Renderer;
-
-
-/***/ }),
-/* 257 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var registerLayerAdjustment = __webpack_require__(201).registerLayerAdjustment;
-
-	var d3_tileLayer = function () {
-	  'use strict';
-	  var m_this = this,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      m_quadFeature,
-	      m_nextTileId = 0,
-	      m_tiles = [];
-
-	  this._drawTile = function (tile) {
-	    if (!m_quadFeature) {
-	      return;
-	    }
-	    var bounds = m_this._tileBounds(tile),
-	        level = tile.index.level || 0,
-	        to = this._tileOffset(level),
-	        quad = {};
-	    quad.ul = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.ll = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ur = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.lr = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ul.z = quad.ll.z = quad.ur.z = quad.lr.z = level * 1e-5;
-	    m_nextTileId += 1;
-	    quad.id = m_nextTileId;
-	    tile.quadId = quad.id;
-	    quad.image = tile.image;
-	    quad.reference = tile.toString();
-	    m_tiles.push(quad);
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	    m_this.draw();
-	  };
-
-	  /* Remove the tile feature. */
-	  this._remove = function (tile) {
-	    if (tile.quadId !== undefined && m_quadFeature) {
-	      for (var i = 0; i < m_tiles.length; i += 1) {
-	        if (m_tiles[i].id === tile.quadId) {
-	          m_tiles.splice(i, 1);
-	          break;
-	        }
-	      }
-	      m_quadFeature.data(m_tiles);
-	      m_quadFeature._update();
-	      m_this.draw();
-	    }
-	  };
-
-	  /**
-	   * Clean up the layer.
-	   */
-	  this._exit = function () {
-	    m_this.deleteFeature(m_quadFeature);
-	    m_quadFeature = null;
-	    m_tiles = [];
-	    s_exit.apply(m_this, arguments);
-	  };
-
-	  /* Initialize the tile layer.  This creates a series of sublayers so that
-	   * the different layers will stack in the proper order.
-	   */
-	  this._init = function () {
-	    s_init.apply(m_this, arguments);
-	    m_quadFeature = this.createFeature('quad', {
-	      previewColor: m_this._options.previewColor,
-	      previewImage: m_this._options.previewImage
-	    });
-	    m_quadFeature.geoTrigger = undefined;
-	    m_quadFeature.gcs(m_this._options.gcs || m_this.map().gcs());
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	  };
-
-	  this._getSubLayer = function () {};
-	  this._updateSubLayers = undefined;
-	};
-
-	registerLayerAdjustment('d3', 'tile', d3_tileLayer);
-	module.exports = d3_tileLayer;
-
-
-/***/ }),
-/* 258 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var vectorFeature = __webpack_require__(244);
-
-	/**
-	 * Create a new instance of vectorFeature
-	 *
-	 * @class geo.d3.vectorFeature
-	 * @extends geo.vectorFeature
-	 * @extends geo.d3.object
-	 * @returns {geo.d3.vectorFeature}
-	 */
-	var d3_vectorFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof d3_vectorFeature)) {
-	    return new d3_vectorFeature(arg);
-	  }
-
-	  var object = __webpack_require__(251);
-	  var timestamp = __webpack_require__(209);
-	  var d3 = __webpack_require__(226);
-
-	  arg = arg || {};
-	  vectorFeature.call(this, arg);
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      s_update = this._update,
-	      m_buildTime = timestamp(),
-	      m_style = {};
-
-	  /**
-	   * Generate a unique ID for a marker definition
-	   * @private
-	   * @param {object} d Unused datum (for d3 compat)
-	   * @param {number} i The marker index
-	   * @param {string} position The marker's vector position (head or tail)
-	   */
-	  function markerID(d, i, position) {
-	    return m_this._d3id() + '_marker_' + i + '_' + position;
-	  }
-
-	  /**
-	   * Add marker styles for vector arrows.
-	   * @private
-	   * @param {object[]} data The vector data array
-	   * @param {function} stroke The stroke accessor
-	   * @param {function} opacity The opacity accessor
-	   * @param {function} originStyle The marker style for the vector head
-	   * @param {function} endStyle The marker style for the vector tail
-	   */
-	  function updateMarkers(data, stroke, opacity, originStyle, endStyle) {
-
-	    var markerConfigs = {
-	      'arrow': {
-	        attrs: {'class': 'geo-vector-arrow geo-vector-marker', 'viewBox': '0 0 10 10', 'refX': '1', 'refY': '5', 'markerHeight': '5', 'markerWidth': '5', 'orient': 'auto'},
-	        path: 'M 0 0 L 10 5 L 0 10 z'
-	      },
-	      'point': {
-	        attrs: {'class': 'geo-vector-point geo-vector-marker', 'viewBox': '0 0 12 12', 'refX': '6', 'refY': '6', 'markerHeight': '8', 'markerWidth': '8', 'orient': 'auto'},
-	        path: 'M 6 3 A 3 3 0 1 1 5.99999 3 Z'
-	      },
-	      'bar': {
-	        attrs: {'class': 'geo-vector-bar geo-vector-marker', 'viewBox': '0 0 10 10', 'refX': '0', 'refY': '5', 'markerHeight': '6', 'markerWidth': '6', 'orient': 'auto'},
-	        path: 'M 0 0 L 2 0 L 2 10 L 0 10 z'
-	      },
-	      'wedge': {
-	        attrs: {'class': 'geo-vector-wedge geo-vector-marker', 'viewBox': '0 0 10 10', 'refX': '10', 'refY': '5', 'markerHeight': '5', 'markerWidth': '5', 'orient': 'auto'},
-	        path: 'M 0 0 L 1 0 L 10 5 L 1 10 L 0 10 L 9 5 L 0 0'
-	      }
-	    };
-
-	    //this allows for multiple VectorFeatures in a layer
-	    var markerGroup = m_this.renderer()._definitions()
-	      .selectAll('g.marker-group#' + m_this._d3id())
-	      .data(data.length ? [1] : []);
-
-	    markerGroup
-	      .enter()
-	      .append('g')
-	      .attr('id', m_this._d3id)
-	      .attr('class', 'marker-group');
-
-	    markerGroup.exit().remove();
-
-	    var markers = data.reduce(function (markers, d, i) {
-	      var head = markerConfigs[endStyle(d, i)];
-	      var tail = markerConfigs[originStyle(d, i)];
-	      if (head) {
-	        markers.push({
-	          data: d,
-	          dataIndex: i,
-	          head: true
-	        });
-	      }
-	      if (tail) {
-	        markers.push({
-	          data: d,
-	          dataIndex: i,
-	          head: false
-	        });
-	      }
-	      return markers;
-	    }, []);
-
-	    var sel = markerGroup
-	      .selectAll('marker.geo-vector-marker')
-	      .data(markers);
-
-	    sel.enter()
-	      .append('marker')
-	      .append('path');
-
-	    var renderer = m_this.renderer();
-
-	    sel
-	      .each(function (d) {
-	        var marker = d3.select(this);
-	        var markerData = d.head ? markerConfigs[endStyle(d.data, d.dataIndex)] : markerConfigs[originStyle(d.data, d.dataIndex)];
-	        Object.keys(markerData.attrs).map(function (attrName) {
-	          marker.attr(attrName, markerData.attrs[attrName]);
-	        });
-	      })
-	      .attr('id', function (d) {
-	        return markerID(d.data, d.dataIndex, d.head ? 'head' : 'tail');
-	      })
-	      .style('stroke', function (d) {
-	        return renderer._convertColor(stroke)(d.data, d.dataIndex);
-	      })
-	      .style('fill', function (d) {
-	        return renderer._convertColor(stroke)(d.data, d.dataIndex);
-	      })
-	      .style('opacity', function (d) {
-	        return opacity(d.data, d.dataIndex);
-	      })
-	      .select('path')
-	      .attr('d', function (d) {
-	        return d.head ? markerConfigs[endStyle(d.data, d.dataIndex)].path : markerConfigs[originStyle(d.data, d.dataIndex)].path;
-	      });
-
-	    sel.exit().remove();
-	  }
-
-	  /**
-	   * Initialize
-	   * @protected
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-	    return m_this;
-	  };
-
-	  /**
-	   * Build
-	   * @protected
-	   */
-	  this._build = function () {
-	    var data = m_this.data(),
-	        s_style = m_this.style.get(),
-	        m_renderer = m_this.renderer(),
-	        orig_func = m_this.origin(),
-	        size_func = m_this.delta(),
-	        cache = [],
-	        scale = m_this.style('scale'),
-	        max = Number.NEGATIVE_INFINITY;
-
-	    // call super-method
-	    s_update.call(m_this);
-
-	    // default to empty data array
-	    if (!data) { data = []; }
-
-	    // cache the georeferencing
-	    cache = data.map(function (d, i) {
-	      var origin = m_this.featureGcsToDisplay(orig_func(d, i)),
-	          delta = size_func(d, i);
-	      max = Math.max(max, delta.x * delta.x + delta.y * delta.y);
-	      return {
-	        x1: origin.x,
-	        y1: origin.y,
-	        dx: delta.x,
-	        dy: -delta.y
-	      };
-	    });
-
-	    max = Math.sqrt(max);
-	    if (!scale) {
-	      scale = 75 / max;
-	    }
-
-	    function getScale() {
-	      return scale / m_renderer.scaleFactor();
-	    }
-
-	    // fill in d3 renderer style object defaults
-	    m_style.id = m_this._d3id();
-	    m_style.data = data;
-	    m_style.append = 'line';
-	    m_style.attributes = {
-	      x1: function (d, i) {
-	        return cache[i].x1;
-	      },
-	      y1: function (d, i) {
-	        return cache[i].y1;
-	      },
-	      x2: function (d, i) {
-	        return cache[i].x1 + getScale() * cache[i].dx;
-	      },
-	      y2: function (d, i) {
-	        return cache[i].y1 + getScale() * cache[i].dy;
-	      },
-	      'marker-start': function (d, i) {
-	        return 'url(#' + markerID(d, i, 'tail') + ')';
-	      },
-	      'marker-end': function (d, i) {
-	        return 'url(#' + markerID(d, i, 'head') + ')';
-	      }
-	    };
-	    m_style.style = {
-	      stroke: function () { return true; },
-	      strokeColor: s_style.strokeColor,
-	      strokeWidth: s_style.strokeWidth,
-	      strokeOpacity: s_style.strokeOpacity,
-	      originStyle: s_style.originStyle,
-	      endStyle: s_style.endStyle
-	    };
-	    m_style.classes = ['d3VectorFeature'];
-	    m_style.visible = m_this.visible;
-
-	    // Add markers to the defition list
-	    updateMarkers(data, s_style.strokeColor, s_style.strokeOpacity, s_style.originStyle, s_style.endStyle);
-
-	    // pass to renderer to draw
-	    m_this.renderer()._drawFeatures(m_style);
-
-	    // update time stamps
-	    m_buildTime.modified();
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Update
-	   * @protected
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.getMTime() >= m_buildTime.getMTime()) {
-	      m_this._build();
-	    } else {
-	      updateMarkers(
-	        m_style.data,
-	        m_style.style.strokeColor,
-	        m_style.style.strokeOpacity,
-	        m_style.style.originStyle,
-	        m_style.style.endStyle
-	      );
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Exit
-	   * @protected
-	   */
-	  this._exit = function () {
-	    s_exit.call(m_this);
-	    m_style = {};
-	    updateMarkers([], null, null, null, null);
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(d3_vectorFeature, vectorFeature);
-
-	// Now register it
-	registerFeature('d3', 'vector', d3_vectorFeature);
-	module.exports = d3_vectorFeature;
-
-
-/***/ }),
-/* 259 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/**
-	 * @namespace geo.gl
-	 */
-	module.exports = {
-	  choroplethFeature: __webpack_require__(260),
-	  contourFeature: __webpack_require__(261),
-	  lineFeature: __webpack_require__(263),
-	  pointFeature: __webpack_require__(264),
-	  polygonFeature: __webpack_require__(265),
-	  quadFeature: __webpack_require__(267),
-	  tileLayer: __webpack_require__(268),
-	  vglRenderer: __webpack_require__(200)
-	};
-
-
-/***/ }),
-/* 260 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var choroplethFeature = __webpack_require__(225);
-
-	/**
-	 * Create a new instance of choroplethFeature
-	 *
-	 * @class geo.gl.choroplethFeature
-	 * @extends geo.choroplethFeature
-	 * @returns {geo.gl.choroplethFeature}
-	 */
-	var gl_choroplethFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof gl_choroplethFeature)) {
-	    return new gl_choroplethFeature(arg);
-	  }
-	  arg = arg || {};
-	  choroplethFeature.call(this, arg);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_gl_polygons = null,
-	      s_exit = this._exit,
-	      s_init = this._init,
-	      s_draw = this.draw,
-	      s_update = this._update;
-
-	  /* Create the choropleth.  This calls the base class to generate the contours,
-	   * into the various gl uniforms and buffers.
-	   */
-	  function createGLChoropleth() {
-	    return m_this.createChoropleth();
-	  }
-
-	  this.draw = function () {
-	    m_this._update();
-	    if (m_gl_polygons) {
-	      for (var idx = 0; idx < m_gl_polygons.length; idx += 1) {
-	        m_gl_polygons[idx].draw();
-	      }
-	    }
-	    s_draw();
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    s_init.call(m_this, arg);
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    m_this.buildTime().modified();
-	    return (m_gl_polygons = createGLChoropleth());
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.dataTime().getMTime() >= m_this.buildTime().getMTime() ||
-	        m_this.updateTime().getMTime() <= m_this.getMTime()) {
-	      m_this._wipePolygons();
-	      m_this._build();
-	    }
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Destroy Polygon Sub-Features
-	   */
-	  this._wipePolygons = function () {
-	    if (m_gl_polygons) {
-	      m_gl_polygons.map(function (polygon) {
-	        return polygon._exit();
-	      });
-	    }
-	    m_gl_polygons = null;
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    m_this._wipePolygons();
-	    s_exit();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(gl_choroplethFeature, choroplethFeature);
-
-	// Now register it
-	registerFeature('vgl', 'choropleth', gl_choroplethFeature);
-
-	module.exports = gl_choroplethFeature;
-
-
-/***/ }),
-/* 261 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var contourFeature = __webpack_require__(227);
-
-	/**
-	 * Create a new instance of contourFeature
-	 *
-	 * @class geo.gl.contourFeature
-	 * @extends geo.contourFeature
-	 * @returns {geo.gl.contourFeature}
-	 */
-	var gl_contourFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof gl_contourFeature)) {
-	    return new gl_contourFeature(arg);
-	  }
-	  arg = arg || {};
-	  contourFeature.call(this, arg);
-
-	  var vgl = __webpack_require__(86);
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-	  var object = __webpack_require__(262);
-
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_textureUnit = 7,
-	      m_actor = null,
-	      m_mapper = null,
-	      m_material = null,
-	      m_texture = null,
-	      m_minColorUniform = null,
-	      m_maxColorUniform = null,
-	      m_stepsUniform = null,
-	      m_steppedUniform = null,
-	      m_dynamicDraw = arg.dynamicDraw === undefined ? false : arg.dynamicDraw,
-	      s_init = this._init,
-	      s_update = this._update;
-
-	  function createVertexShader() {
-	    var vertexShaderSource = [
-	          '#ifdef GL_ES',
-	          '  precision highp float;',
-	          '#endif',
-	          'attribute vec3 pos;',
-	          'attribute float value;',
-	          'attribute float opacity;',
-	          'uniform mat4 modelViewMatrix;',
-	          'uniform mat4 projectionMatrix;',
-	          'varying float valueVar;',
-	          'varying float opacityVar;',
-
-	          'void main(void)',
-	          '{',
-	      /* Don't use z values; something is rotten in one of our matrices */
-	          '  vec4 scrPos = projectionMatrix * modelViewMatrix * vec4(pos.xy, 0, 1);',
-	          '  if (scrPos.w != 0.0) {',
-	          '    scrPos = scrPos / scrPos.w;',
-	          '  }',
-	          '  valueVar = value;',
-	          '  opacityVar = opacity;',
-	          '  gl_Position = scrPos;',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.VERTEX_SHADER);
-	    shader.setShaderSource(vertexShaderSource);
-	    return shader;
-	  }
-
-	  function createFragmentShader() {
-	    var fragmentShaderSource = [
-	          '#ifdef GL_ES',
-	          '  precision highp float;',
-	          '#endif',
-	          'uniform vec4 minColor;',
-	          'uniform vec4 maxColor;',
-	          'uniform float steps;',
-	          'uniform bool stepped;',
-	          'uniform sampler2D sampler2d;',
-	          'varying float valueVar;',
-	          'varying float opacityVar;',
-	          'void main () {',
-	          '  vec4 clr;',
-	          '  if (valueVar < 0.0) {',
-	          '    clr = minColor;',
-	          '  } else if (valueVar > steps) {',
-	          '    clr = maxColor;',
-	          '  } else {',
-	          '    float step;',
-	          '    if (stepped) {',
-	          '      step = floor(valueVar) + 0.5;',
-	          '      if (step > steps) {',
-	          '        step = steps - 0.5;',
-	          '      }',
-	          '    } else {',
-	          '      step = valueVar;',
-	          '    }',
-	          '    clr = texture2D(sampler2d, vec2(step / steps, 0.0));',
-	          '  }',
-	          '  gl_FragColor = vec4(clr.rgb, clr.a * opacityVar);',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.FRAGMENT_SHADER);
-	    shader.setShaderSource(fragmentShaderSource);
-	    return shader;
-	  }
-
-	  /* Create the contours.  This calls the base class to generate the geometry,
-	   * color map, and other parameters.  The generated geoemtry is then loaded
-	   * into the various gl uniforms and buffers.
-	   */
-	  function createGLContours() {
-	    var contour = m_this.createContours(),
-	        numPts = contour.elements.length,
-	        colorTable = [],
-	        i, i3, j, j3,
-	        posBuf, opacityBuf, valueBuf, indicesBuf,
-	        geom = m_mapper.geometryData();
-
-	    m_minColorUniform.set([contour.minColor.r, contour.minColor.g,
-	                           contour.minColor.b, contour.minColor.a]);
-	    m_maxColorUniform.set([contour.maxColor.r, contour.maxColor.g,
-	                           contour.maxColor.b, contour.maxColor.a]);
-	    m_stepsUniform.set(contour.colorMap.length);
-	    m_steppedUniform.set(contour.stepped);
-	    for (i = 0; i < contour.colorMap.length; i += 1) {
-	      colorTable.push(contour.colorMap[i].r * 255);
-	      colorTable.push(contour.colorMap[i].g * 255);
-	      colorTable.push(contour.colorMap[i].b * 255);
-	      colorTable.push(contour.colorMap[i].a * 255);
-	    }
-	    m_texture.setColorTable(colorTable);
-	    contour.pos = transform.transformCoordinates(
-	        m_this.gcs(), m_this.layer().map().gcs(), contour.pos, 3);
-	    posBuf = util.getGeomBuffer(geom, 'pos', numPts * 3);
-	    opacityBuf = util.getGeomBuffer(geom, 'opacity', numPts);
-	    valueBuf = util.getGeomBuffer(geom, 'value', numPts);
-	    for (i = i3 = 0; i < numPts; i += 1, i3 += 3) {
-	      j = contour.elements[i];
-	      j3 = j * 3;
-	      posBuf[i3] = contour.pos[j3];
-	      posBuf[i3 + 1] = contour.pos[j3 + 1];
-	      posBuf[i3 + 2] = contour.pos[j3 + 2];
-	      opacityBuf[i] = contour.opacity[j];
-	      valueBuf[i] = contour.value[j];
-	    }
-	    indicesBuf = geom.primitive(0).indices();
-	    if (!(indicesBuf instanceof Uint16Array) || indicesBuf.length !== numPts) {
-	      indicesBuf = new Uint16Array(numPts);
-	      geom.primitive(0).setIndices(indicesBuf);
-	    }
-	    geom.boundsDirty(true);
-	    m_mapper.modified();
-	    m_mapper.boundsDirtyTimestamp().modified();
-	  }
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    var blend = vgl.blend(),
-	        prog = vgl.shaderProgram(),
-	        mat = vgl.material(),
-	        tex = vgl.lookupTable(),
-	        geom = vgl.geometryData(),
-	        modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	        projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	        samplerUniform = new vgl.uniform(vgl.GL.INT, 'sampler2d'),
-	        vertexShader = createVertexShader(),
-	        fragmentShader = createFragmentShader(),
-	        posAttr = vgl.vertexAttribute('pos'),
-	        valueAttr = vgl.vertexAttribute('value'),
-	        opacityAttr = vgl.vertexAttribute('opacity'),
-	        sourcePositions = vgl.sourceDataP3fv({'name': 'pos'}),
-	        sourceValues = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.One, {'name': 'value'}),
-	        sourceOpacity = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Two, {'name': 'opacity'}),
-	        primitive = new vgl.triangles();
-
-	    s_init.call(m_this, arg);
-	    m_mapper = vgl.mapper({dynamicDraw: m_dynamicDraw});
-
-	    prog.addVertexAttribute(posAttr, vgl.vertexAttributeKeys.Position);
-	    prog.addVertexAttribute(valueAttr, vgl.vertexAttributeKeysIndexed.One);
-	    prog.addVertexAttribute(opacityAttr, vgl.vertexAttributeKeysIndexed.Two);
-
-	    prog.addUniform(modelViewUniform);
-	    prog.addUniform(projectionUniform);
-	    m_minColorUniform = new vgl.uniform(vgl.GL.FLOAT_VEC4, 'minColor');
-	    prog.addUniform(m_minColorUniform);
-	    m_maxColorUniform = new vgl.uniform(vgl.GL.FLOAT_VEC4, 'maxColor');
-	    prog.addUniform(m_maxColorUniform);
-	    /* steps is always an integer, but it is more efficient if we use a float
-	     */
-	    m_stepsUniform = new vgl.uniform(vgl.GL.FLOAT, 'steps');
-	    prog.addUniform(m_stepsUniform);
-	    m_steppedUniform = new vgl.uniform(vgl.GL.BOOL, 'stepped');
-	    prog.addUniform(m_steppedUniform);
-
-	    prog.addShader(fragmentShader);
-	    prog.addShader(vertexShader);
-
-	    prog.addUniform(samplerUniform);
-	    tex.setTextureUnit(m_textureUnit);
-	    samplerUniform.set(m_textureUnit);
-
-	    m_material = mat;
-	    m_material.addAttribute(prog);
-	    m_material.addAttribute(blend);
-	    m_texture = tex;
-	    m_material.addAttribute(m_texture);
-
-	    m_actor = vgl.actor();
-	    m_actor.setMaterial(m_material);
-	    m_actor.setMapper(m_mapper);
-
-	    geom.addSource(sourcePositions);
-	    geom.addSource(sourceValues);
-	    geom.addSource(sourceOpacity);
-	    geom.addPrimitive(primitive);
-	    m_mapper.setGeometryData(geom);
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    if (m_actor) {
-	      m_this.renderer().contextRenderer().removeActor(m_actor);
-	    }
-
-	    createGLContours();
-
-	    m_this.renderer().contextRenderer().addActor(m_actor);
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.dataTime().getMTime() >= m_this.buildTime().getMTime() ||
-	        m_this.updateTime().getMTime() <= m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    m_actor.setVisible(m_this.visible());
-	    m_actor.material().setBinNumber(m_this.bin());
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    m_this.renderer().contextRenderer().removeActor(m_actor);
-	    s_exit();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(gl_contourFeature, contourFeature);
-
-	// Now register it
-	registerFeature('vgl', 'contour', gl_contourFeature);
-
-	module.exports = gl_contourFeature;
-
-
-/***/ }),
-/* 262 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/**
-	 * VGL specific subclass of object which rerenders when the object is drawn.
-	 * @class geo.gl.object
-	 * @extends geo.sceneObject
-	 */
-
-	var gl_object = function (arg) {
-	  'use strict';
-
-	  var object = __webpack_require__(203);
-
-	  // this is used to extend other geojs classes, so only generate
-	  // a new object when that is not the case... like if this === window
-	  if (!(this instanceof object)) {
-	    return new gl_object(arg);
-	  }
-
-	  var m_this = this,
-	      s_draw = this.draw;
-
-	  /**
-	  *  Redraw the object.
-	  */
-	  this.draw = function () {
-	    m_this._update({mayDelay: true});
-	    m_this.renderer()._render();
-	    s_draw();
-	    return m_this;
-	  };
-
-	  return this;
-	};
-
-	module.exports = gl_object;
-
-
-
-/***/ }),
-/* 263 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var lineFeature = __webpack_require__(206);
-
-	var MAX_MITER_LIMIT = 100;
-
-	/* Flags are passed to the vertex shader in a float.  Since a 32-bit float has
-	 * 24 bits of mantissa, including the sign bit, a maximum of 23 bits of flags
-	 * can be passed in a float without loss or complication. */
-	/* vertex flags specify which direction a vertex needs to be offset */
-	var flagsVertex = {  // uses 2 bits
-	  corner: 0,
-	  near: 1,
-	  far: 3
-	};
-	var flagsLineCap = {  // uses 3 bits with flagsLineJoin
-	  butt: 0,
-	  square: 1,
-	  round: 2
-	};
-	var flagsLineJoin = {  // uses 3 bits with flagsLineCap
-	  passthrough: 3,
-	  miter: 4,
-	  bevel: 5,
-	  round: 6,
-	  'miter-clip': 7
-	};
-	var flagsNearLineShift = 2, flagsFarLineShift = 5;
-	var flagsNearOffsetShift = 8;  // uses 11 bits
-	/* Fixed flags */
-	var flagsDebug = {  // uses 1 bit
-	  normal: 0,
-	  debug: 1
-	};
-
-	/**
-	 * Create a new instance of lineFeature
-	 *
-	 * @class geo.gl.lineFeature
-	 * @extends geo.lineFeature
-	 * @returns {geo.gl.lineFeature}
-	 */
-	var gl_lineFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof gl_lineFeature)) {
-	    return new gl_lineFeature(arg);
-	  }
-	  arg = arg || {};
-	  lineFeature.call(this, arg);
-
-	  var vgl = __webpack_require__(86);
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-	  var object = __webpack_require__(262);
-
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_actor,
-	      m_mapper,
-	      m_material,
-	      m_pixelWidthUnif,
-	      m_aspectUniform,
-	      m_miterLimitUniform,
-	      m_antialiasingUniform,
-	      m_flagsUniform,
-	      m_dynamicDraw = arg.dynamicDraw === undefined ? false : arg.dynamicDraw,
-	      s_init = this._init,
-	      s_update = this._update;
-
-	  function createVertexShader() {
-	    var vertexShaderSource = [
-	          '#ifdef GL_ES',
-	          '  precision highp float;',
-	          '#endif',
-	          'attribute vec3 pos;',
-	          'attribute vec3 prev;',
-	          'attribute vec3 next;',
-	          'attribute vec3 far;',
-	          'attribute float flags;',
-
-	          'attribute vec3 strokeColor;',
-	          'attribute float strokeOpacity;',
-	          'attribute float strokeWidth;',
-
-	          'uniform mat4 modelViewMatrix;',
-	          'uniform mat4 projectionMatrix;',
-	          'uniform float pixelWidth;',
-	          'uniform float aspect;',
-	          'uniform float miterLimit;',
-	          'uniform float antialiasing;',
-
-	          'varying vec4 strokeColorVar;',
-	          'varying vec4 subpos;',  /* px, py, length - px, width */
-	          'varying vec4 info;',  /* near mode, far mode, offset */
-	          'varying vec4 angles;', /* near angle cos, sin, far angle cos, sin */
-
-	          'const float PI = 3.14159265358979323846264;',
-
-	          'vec4 viewCoord(vec3 c) {',
-	          '  vec4 result = projectionMatrix * modelViewMatrix * vec4(c.xyz, 1);',
-	          '  if (result.w != 0.0)  result = result / result.w;',
-	          '  return result;',
-	          '}',
-
-	          'void main(void)',
-	          '{',
-	          /* If any vertex has been deliberately set to a negative opacity,
-	           * skip doing computations on it. */
-	          '  if (strokeOpacity < 0.0) {',
-	          '    gl_Position = vec4(2, 2, 0, 1);',
-	          '    return;',
-	          '  }',
-	          /* convert coordinates.  We have four values, since we need to
-	           * calculate the angles between the lines formed by prev-pos and
-	           * pos-next, and between pos-next and next-far, plus know the angle
-	           *   (prev)---(pos)---(next)---(far) => A---B---C---D */
-	          '  vec4 A = viewCoord(prev);',
-	          '  vec4 B = viewCoord(pos);',
-	          '  vec4 C = viewCoord(next);',
-	          '  vec4 D = viewCoord(far);',
-	          // calculate line segment vector and angle
-	          '  vec2 deltaCB = C.xy - B.xy;',
-	          '  if (deltaCB == vec2(0.0, 0.0)) {',
-	          '    gl_Position = vec4(2, 2, 0, 1);',
-	          '    return;',
-	          '  }',
-	          '  float angleCB = atan(deltaCB.y / aspect, deltaCB.x);',
-	          // values we need to pass along
-	          '  strokeColorVar = vec4(strokeColor, strokeOpacity);',
-	          // extract values from our flags field
-	          '  int vertex = int(mod(flags, 4.0));',
-	          '  int nearMode = int(mod(floor(flags / 4.0), 8.0));',
-	          '  int farMode = int(mod(floor(flags / 32.0), 8.0));',
-	          // we use 11 bits of the flags for the offset, where -1023 to 1023
-	          // maps to -1 to 1.  The 11 bits are a signed value, so simply
-	          // selecting the bits will result in an unsigned values that may be
-	          // greater than 1, in which case we have to subtract appropriately.
-	          '  float offset = mod(floor(flags / 256.0), 2048.0) / 1023.0;',
-	          '  if (offset > 1.0)  offset -= 2048.0 / 1023.0;',
-	          // by default, offset by the width and don't extend lines.  Later,
-	          // calculate line extensions based on end cap and end join modes
-	          '  float yOffset = strokeWidth + antialiasing;',
-	          '  if (vertex == 0 || vertex == 2)  yOffset *= -1.0;',
-	          '  yOffset += strokeWidth * offset;',
-	          '  float xOffset = 0.0;',
-	          // end caps
-	          '  if (nearMode == 0) {',
-	          '    xOffset = antialiasing;',
-	          '  } else if (nearMode == 1 || nearMode == 2) {',
-	          '    xOffset = strokeWidth + antialiasing;',
-	          '  }',
-
-	          // If joining lines, calculate the angles in screen space formed by
-	          // the near end (A-B-C) and far end (B-C-D), and determine how much
-	          // space is needed for the particular join.
-	          //   This could be changed: if the lines are not a uniform width and
-	          // offset, then the functional join angle is not simply half the
-	          // angle between the two lines, but rather half the angle of the
-	          // inside edge of the the two lines.
-	          '  float cosABC, sinABC, cosBCD, sinBCD;',  // of half angles
-	          // handle near end
-	          '  if (nearMode >= 4) {',
-	          '    float angleBA = atan((B.y - A.y) / aspect, B.x - A.x);',
-	          '    if (A.xy == B.xy)  angleBA = angleCB;',
-	          '    float angleABC = angleCB - angleBA;',
-	          // ensure angle is in the range [-PI, PI], then take the half angle
-	          '    angleABC = (mod(angleABC + PI, 2.0 * PI) - PI) / 2.0;',
-	          '    cosABC = cos(angleABC);  sinABC = sin(angleABC);',
-	          // if this angle is close to flat, pass-through the join
-	          '    if (nearMode >= 4 && cosABC > 0.999999) {',
-	          '      nearMode = 3;',
-	          '    }',
-	          // miter, miter-clip
-	          '    if (nearMode == 4 || nearMode == 7) {',
-	          '      if (cosABC == 0.0 || 1.0 / cosABC > miterLimit) {',
-	          '        if (nearMode == 4) {',
-	          '          nearMode = 5;',
-	          '        } else {',
-	          '          xOffset = miterLimit * strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing;',
-	          '        }',
-	          '      } else {',
-	          // we add an extra 1.0 to the xOffset to make sure that fragment
-	          // shader is doing the clipping
-	          '        xOffset = abs(sinABC / cosABC) * strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing + 1.0;',
-	          '        nearMode = 4;',
-	          '      }',
-	          '    }',
-	          // bevel or round join
-	          '    if (nearMode == 5 || nearMode == 6) {',
-	          '      xOffset = strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing;',
-	          '    }',
-	          '  }',
-
-	          // handle far end
-	          '  if (farMode >= 4) {',
-	          '    float angleDC = atan((D.y - C.y) / aspect, D.x - C.x);',
-	          '    if (D.xy == C.xy)  angleDC = angleCB;',
-	          '    float angleBCD = angleDC - angleCB;',
-	          // ensure angle is in the range [-PI, PI], then take the half angle
-	          '    angleBCD = (mod(angleBCD + PI, 2.0 * PI) - PI) / 2.0;',
-	          '    cosBCD = cos(angleBCD);  sinBCD = sin(angleBCD);',
-	          // if this angle is close to flat, pass-through the join
-	          '    if (farMode >= 4 && cosBCD > 0.999999) {',
-	          '      farMode = 3;',
-	          '    }',
-	          // miter, miter-clip
-	          '    if (farMode == 4 || farMode == 7) {',
-	          '      if (cosBCD == 0.0 || 1.0 / cosBCD > miterLimit) {',
-	          '        if (farMode == 4)  farMode = 5;',
-	          '      } else {',
-	          '        farMode = 4;',
-	          '      }',
-	          '    }',
-	          '  }',
-
-	          // compute the location of a vertex to include everything that might
-	          // need to be rendered
-	          '  xOffset *= -1.0;',
-	          '  gl_Position = vec4(',
-	          '    B.x + (xOffset * cos(angleCB) - yOffset * sin(angleCB)) * pixelWidth,',
-	          '    B.y + (xOffset * sin(angleCB) + yOffset * cos(angleCB)) * pixelWidth * aspect,',
-	          '    B.z, 1);',
-	          // store other values needed to determine which pixels to plot.
-	          '  float lineLength = length(vec2(deltaCB.x, deltaCB.y / aspect)) / pixelWidth;',
-
-	          '  if (vertex == 0 || vertex == 1) {',
-	          '    subpos = vec4(xOffset, yOffset, lineLength - xOffset, strokeWidth);',
-	          '    info = vec4(float(nearMode), float(farMode), offset, 0.0);',
-	          '    angles = vec4(cosABC, sinABC, cosBCD, sinBCD);',
-	          '  } else {',
-	          '    subpos = vec4(lineLength - xOffset, -yOffset, xOffset, strokeWidth);',
-	          '    info = vec4(float(farMode), float(nearMode), -offset, 0.0);',
-	          '    angles = vec4(cosBCD, -sinBCD, cosABC, -sinABC);',
-	          '  }',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.VERTEX_SHADER);
-	    shader.setShaderSource(vertexShaderSource);
-	    return shader;
-	  }
-
-	  function createFragmentShader(allowDebug) {
-	    var fragmentShaderSource = [
-	          '#ifdef GL_ES',
-	          '  precision highp float;',
-	          '#endif',
-	          'varying vec4 strokeColorVar;',
-	          'varying vec4 subpos;',
-	          'varying vec4 info;',
-	          'varying vec4 angles;',
-	          'uniform float antialiasing;',
-	          'uniform float miterLimit;',
-	          'uniform float fixedFlags;',
-	          'void main () {',
-	          '  vec4 color = strokeColorVar;',
-	          allowDebug ? '  bool debug = bool(mod(fixedFlags, 2.0));' : '',
-	          '  float opacity = 1.0;',
-	          '  int nearMode = int(info.x);',
-	          '  int farMode = int(info.y);',
-	          '  float cosABC = angles.x;',
-	          '  float sinABC = angles.y;',
-	          '  float cosBCD = angles.z;',
-	          '  float sinBCD = angles.w;',
-	          // never render on the opposite side of a miter.  This uses a bit of
-	          // slop, via pow(smoothstep()) instead of step(), since there are
-	          // precision issues in this calculation.  This doesn't wholy solve
-	          // the precision issue; sometimes pixels are missed or double
-	          // rendered along the inside seam of a miter.
-	          '  if (nearMode >= 4) {',
-	          '    float dist = cosABC * subpos.x - sinABC * subpos.y;',
-	          '    opacity = min(opacity, pow(smoothstep(-0.02, 0.02, dist), 0.5));',
-	          '    if (opacity == 0.0) {',
-	          allowDebug ? 'if (debug) {color.r=255.0/255.0;gl_FragColor=color;return;}' : '',
-	          '      discard;',
-	          '    }',
-	          '  }',
-	          '  if (farMode >= 4) {',
-	          '    float dist = cosBCD * subpos.z - sinBCD * subpos.y;',
-	          '    opacity = min(opacity, pow(smoothstep(-0.02, 0.02, dist), 0.5));',
-	          '    if (opacity == 0.0) {',
-	          allowDebug ? 'if (debug) {color.r=254.0/255.0;gl_FragColor=color;return;}' : '',
-	          '      discard;',
-	          '    }',
-	          '  }',
-	          // butt or square cap
-	          '  if ((nearMode == 0 || nearMode == 1) && subpos.x < antialiasing) {',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.x + subpos.w * float(nearMode)));',
-	          '  }',
-	          '  if ((farMode == 0 || farMode == 1) && subpos.z < antialiasing) {',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.z + subpos.w * float(farMode)));',
-	          '  }',
-	          // round cap
-	          '  if (nearMode == 2 && subpos.x <= 0.0) {',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.w - sqrt(pow(subpos.x, 2.0) + pow(subpos.y - info.z * subpos.w, 2.0))));',
-	          '  }',
-	          '  if (farMode == 2 && subpos.z <= 0.0) {',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.w - sqrt(pow(subpos.z, 2.0) + pow(subpos.y - info.z * subpos.w, 2.0))));',
-	          '  }',
-	          // bevel and clip joins
-	          '  if ((nearMode == 5 || nearMode == 7) && subpos.x < antialiasing) {',
-	          '    float dist = (sinABC * subpos.x + cosABC * subpos.y) * sign(sinABC);',
-	          '    float w = subpos.w * (1.0 - info.z * sign(sinABC));',
-	          '    float maxDist;',
-	          '    if (nearMode == 5)  maxDist = cosABC * w;',
-	          '    else                maxDist = miterLimit * w;',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, maxDist + dist));',
-	          '  }',
-	          '  if ((farMode == 5 || farMode == 7) && subpos.z < antialiasing) {',
-	          '    float dist = (sinBCD * subpos.z + cosBCD * subpos.y) * sign(sinBCD);',
-	          '    float w = subpos.w * (1.0 - info.z * sign(sinBCD));',
-	          '    float maxDist;',
-	          '    if (farMode == 5)  maxDist = cosBCD * w;',
-	          '    else               maxDist = miterLimit * w;',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, maxDist + dist));',
-	          '  }',
-	          // round join
-	          '  if (nearMode == 6 && subpos.x <= 0.0) {',
-	          '    float w = subpos.w * (1.0 - info.z * sign(sinABC));',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, w - sqrt(pow(subpos.x, 2.0) + pow(subpos.y, 2.0))));',
-	          '  }',
-	          '  if (farMode == 6 && subpos.z <= 0.0) {',
-	          '    float w = subpos.w * (1.0 - info.z * sign(sinBCD));',
-	          '    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, w - sqrt(pow(subpos.z, 2.0) + pow(subpos.y, 2.0))));',
-	          '  }',
-	          // antialias along main edges
-	          '  if (antialiasing > 0.0) {',
-	          '    if (subpos.y > subpos.w * (1.0 + info.z) - antialiasing) {',
-	          '      opacity = min(opacity, smoothstep(antialiasing, -antialiasing, subpos.y - subpos.w * (1.0 + info.z)));',
-	          '    }',
-	          '    if (subpos.y < subpos.w * (-1.0 + info.z) + antialiasing) {',
-	          '      opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.y - subpos.w * (-1.0 + info.z)));',
-	          '    }',
-	          '  }',
-	          '  if (opacity == 0.0) {',
-	          allowDebug ? 'if (debug) {color.r=253.0/255.0;gl_FragColor=color;return;}' : '',
-	          '    discard;',
-	          '  }',
-	          '  color.a *= opacity;',
-	          '  gl_FragColor = color;',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.FRAGMENT_SHADER);
-	    shader.setShaderSource(fragmentShaderSource);
-	    return shader;
-	  }
-
-	  function createGLLines() {
-	    var data = m_this.data(),
-	        i, j, k, v, v2, lidx,
-	        numSegments = 0, len,
-	        lineItem, lineItemData,
-	        vert = [{}, {}], v1 = vert[1],
-	        pos, posIdx3, firstpos, firstPosIdx3,
-	        position = [],
-	        posFunc = m_this.position(),
-	        strokeWidthFunc = m_this.style.get('strokeWidth'), strokeWidthVal,
-	        strokeColorFunc = m_this.style.get('strokeColor'), strokeColorVal,
-	        strokeOpacityFunc = m_this.style.get('strokeOpacity'), strokeOpacityVal,
-	        lineCapFunc = m_this.style.get('lineCap'), lineCapVal,
-	        lineJoinFunc = m_this.style.get('lineJoin'), lineJoinVal,
-	        strokeOffsetFunc = m_this.style.get('strokeOffset'), strokeOffsetVal,
-	        miterLimit = m_this.style.get('miterLimit')(data),
-	        antialiasing = m_this.style.get('antialiasing')(data) || 0,
-	        order = m_this.featureVertices(),
-	        posBuf, prevBuf, nextBuf, farBuf, flagsBuf, indicesBuf,
-	        fixedFlags = (flagsDebug[m_this.style.get('debug')(data) ? 'debug' : 'normal'] || 0),
-	        strokeWidthBuf, strokeColorBuf, strokeOpacityBuf,
-	        dest, dest3,
-	        geom = m_mapper.geometryData(),
-	        closedFunc = m_this.style.get('closed'), closedVal, closed = [];
-
-	    closedVal = util.isFunction(m_this.style('closed')) ? undefined : closedFunc();
-	    lineCapVal = util.isFunction(m_this.style('lineCap')) ? undefined : lineCapFunc();
-	    lineJoinVal = util.isFunction(m_this.style('lineJoin')) ? undefined : lineJoinFunc();
-	    strokeColorVal = util.isFunction(m_this.style('strokeColor')) ? undefined : strokeColorFunc();
-	    strokeOffsetVal = util.isFunction(m_this.style('strokeOffset')) ? undefined : strokeOffsetFunc();
-	    strokeOpacityVal = util.isFunction(m_this.style('strokeOpacity')) ? undefined : strokeOpacityFunc();
-	    strokeWidthVal = util.isFunction(m_this.style('strokeWidth')) ? undefined : strokeWidthFunc();
-
-	    if (miterLimit !== undefined) {
-	      /* We impose a limit no matter what, since otherwise the growth is
-	       * unbounded.  Values less than 1 make no sense, since we are using the
-	       * SVG definition of miter length. */
-	      m_miterLimitUniform.set(Math.max(1, Math.min(MAX_MITER_LIMIT, miterLimit)));
-	    }
-	    m_flagsUniform.set(fixedFlags);
-	    m_antialiasingUniform.set(antialiasing);
-	    for (i = 0; i < data.length; i += 1) {
-	      lineItem = m_this.line()(data[i], i);
-	      if (lineItem.length < 2) {
-	        continue;
-	      }
-	      numSegments += lineItem.length - 1;
-	      for (j = 0; j < lineItem.length; j += 1) {
-	        pos = posFunc(lineItem[j], j, lineItem, i);
-	        position.push(pos.x);
-	        position.push(pos.y);
-	        position.push(pos.z || 0.0);
-	        if (!j) {
-	          firstpos = pos;
-	        }
-	      }
-	      if (lineItem.length > 2 && (closedVal === undefined ? closedFunc(data[i], i) : closedVal)) {
-	        /* line is closed */
-	        if (pos.x !== firstpos.x || pos.y !== firstpos.y ||
-	            pos.z !== firstpos.z) {
-	          numSegments += 1;
-	          closed[i] = 2;  /* first and last points are distinct */
-	        } else {
-	          closed[i] = 1;  /* first point is repeated as last point */
-	        }
-	      }
-	    }
-
-	    position = transform.transformCoordinates(
-	                 m_this.gcs(), m_this.layer().map().gcs(),
-	                 position, 3);
-
-	    len = numSegments * order.length;
-	    posBuf = util.getGeomBuffer(geom, 'pos', len * 3);
-	    prevBuf = util.getGeomBuffer(geom, 'prev', len * 3);
-	    nextBuf = util.getGeomBuffer(geom, 'next', len * 3);
-	    farBuf = util.getGeomBuffer(geom, 'far', len * 3);
-	    flagsBuf = util.getGeomBuffer(geom, 'flags', len);
-	    strokeWidthBuf = util.getGeomBuffer(geom, 'strokeWidth', len);
-	    strokeColorBuf = util.getGeomBuffer(geom, 'strokeColor', len * 3);
-	    strokeOpacityBuf = util.getGeomBuffer(geom, 'strokeOpacity', len);
-	    indicesBuf = geom.primitive(0).indices();
-	    if (!(indicesBuf instanceof Uint16Array) || indicesBuf.length !== len) {
-	      indicesBuf = new Uint16Array(len);
-	      geom.primitive(0).setIndices(indicesBuf);
-	    }
-
-	    for (i = posIdx3 = dest = dest3 = 0; i < data.length; i += 1) {
-	      lineItem = m_this.line()(data[i], i);
-	      if (lineItem.length < 2) {
-	        continue;
-	      }
-	      firstPosIdx3 = posIdx3;
-	      for (j = 0; j < lineItem.length + (closed[i] === 2 ? 1 : 0); j += 1, posIdx3 += 3) {
-	        lidx = j;
-	        if (j === lineItem.length) {
-	          lidx = 0;
-	          posIdx3 -= 3;
-	        }
-	        lineItemData = lineItem[lidx];
-	        /* swap entries in vert so that vert[0] is the first vertex, and
-	         * vert[1] will be reused for the second vertex */
-	        if (j) {
-	          v1 = vert[0];
-	          vert[0] = vert[1];
-	          vert[1] = v1;
-	        }
-	        v1.pos = j === lidx ? posIdx3 : firstPosIdx3;
-	        v1.prev = lidx ? posIdx3 - 3 : (closed[i] ?
-	            firstPosIdx3 + (lineItem.length - 3 + closed[i]) * 3 : posIdx3);
-	        v1.next = j + 1 < lineItem.length ? posIdx3 + 3 : (closed[i] ?
-	            (j !== lidx ? firstPosIdx3 + 3 : firstPosIdx3 + 6 - closed[i] * 3) :
-	            posIdx3);
-	        v1.strokeWidth = strokeWidthVal === undefined ? strokeWidthFunc(lineItemData, lidx, lineItem, i) : strokeWidthVal;
-	        v1.strokeColor = strokeColorVal === undefined ? strokeColorFunc(lineItemData, lidx, lineItem, i) : strokeColorVal;
-	        v1.strokeOpacity = strokeOpacityVal === undefined ? strokeOpacityFunc(lineItemData, lidx, lineItem, i) : strokeOpacityVal;
-	        v1.strokeOffset = (strokeOffsetVal === undefined ? strokeOffsetFunc(lineItemData, lidx, lineItem, i) : strokeOffsetVal) || 0;
-	        if (v1.strokeOffset) {
-	          /* we use 11 bits to store the offset, and we want to store values
-	           * from -1 to 1, so multiply our values by 1023, and use some bit
-	           * manipulation to ensure that it is packed properly */
-	          v1.posStrokeOffset = Math.round(2048 + 1023 * Math.min(1, Math.max(-1, v1.strokeOffset))) & 0x7FF;
-	          v1.negStrokeOffset = Math.round(2048 - 1023 * Math.min(1, Math.max(-1, v1.strokeOffset))) & 0x7FF;
-	        } else {
-	          v1.posStrokeOffset = v1.negStrokeOffset = 0;
-	        }
-	        if (!closed[i] && (!j || j === lineItem.length - 1)) {
-	          v1.flags = flagsLineCap[lineCapVal === undefined ? lineCapFunc(lineItemData, lidx, lineItem, i) : lineCapVal] || flagsLineCap.butt;
-	        } else {
-	          v1.flags = flagsLineJoin[lineJoinVal === undefined ? lineJoinFunc(lineItemData, lidx, lineItem, i) : lineJoinVal] || flagsLineJoin.miter;
-	        }
-
-	        if (j) {
-	          for (k = 0; k < order.length; k += 1, dest += 1, dest3 += 3) {
-	            v = vert[order[k][0]];
-	            v2 = vert[1 - order[k][0]];
-	            posBuf[dest3] = position[v.pos];
-	            posBuf[dest3 + 1] = position[v.pos + 1];
-	            posBuf[dest3 + 2] = position[v.pos + 2];
-	            if (!order[k][0]) {
-	              prevBuf[dest3] = position[v.prev];
-	              prevBuf[dest3 + 1] = position[v.prev + 1];
-	              prevBuf[dest3 + 2] = position[v.prev + 2];
-	              nextBuf[dest3] = position[v.next];
-	              nextBuf[dest3 + 1] = position[v.next + 1];
-	              nextBuf[dest3 + 2] = position[v.next + 2];
-	              farBuf[dest3] = position[v2.next];
-	              farBuf[dest3 + 1] = position[v2.next + 1];
-	              farBuf[dest3 + 2] = position[v2.next + 2];
-	              flagsBuf[dest] = (flagsVertex[order[k][1]] |
-	                (v.flags << flagsNearLineShift) |
-	                (v2.flags << flagsFarLineShift) |
-	                (v.negStrokeOffset << flagsNearOffsetShift));
-	            } else {
-	              prevBuf[dest3] = position[v.next];
-	              prevBuf[dest3 + 1] = position[v.next + 1];
-	              prevBuf[dest3 + 2] = position[v.next + 2];
-	              nextBuf[dest3] = position[v.prev];
-	              nextBuf[dest3 + 1] = position[v.prev + 1];
-	              nextBuf[dest3 + 2] = position[v.prev + 2];
-	              farBuf[dest3] = position[v2.prev];
-	              farBuf[dest3 + 1] = position[v2.prev + 1];
-	              farBuf[dest3 + 2] = position[v2.prev + 2];
-	              flagsBuf[dest] = (flagsVertex[order[k][1]] |
-	                (v.flags << flagsNearLineShift) |
-	                (v2.flags << flagsFarLineShift) |
-	                (v.posStrokeOffset << flagsNearOffsetShift));
-	            }
-	            strokeWidthBuf[dest] = v.strokeWidth;
-	            strokeColorBuf[dest3] = v.strokeColor.r;
-	            strokeColorBuf[dest3 + 1] = v.strokeColor.g;
-	            strokeColorBuf[dest3 + 2] = v.strokeColor.b;
-	            strokeOpacityBuf[dest] = v.strokeOpacity;
-	          }
-	        }
-	      }
-	    }
-
-	    geom.boundsDirty(true);
-	    m_mapper.modified();
-	    m_mapper.boundsDirtyTimestamp().modified();
-	  }
-
-	  /**
-	   * Return the arrangement of vertices used for each line segment.
-	   *
-	   * @returns {Number}
-	   */
-	  this.featureVertices = function () {
-	    // return [[0, -1], [0, 1], [1, -1], [1, 1], [1, -1], [0, 1]];
-	    return [[0, 'corner', -1], [0, 'near', 1], [1, 'far', -1],
-	            [1, 'corner', 1], [1, 'near', -1], [0, 'far', 1]];
-	  };
-
-	  /**
-	   * Return the number of vertices used for each line segment.
-	   *
-	   * @returns {Number}
-	   */
-	  this.verticesPerFeature = function () {
-	    return m_this.featureVertices().length;
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function (arg) {
-	    var prog = vgl.shaderProgram(),
-	        vs = createVertexShader(),
-	        fs = createFragmentShader(((arg || {}).style || {}).debug !== undefined),
-	        // Vertex attributes
-	        posAttr = vgl.vertexAttribute('pos'),
-	        prvAttr = vgl.vertexAttribute('prev'),
-	        nxtAttr = vgl.vertexAttribute('next'),
-	        farAttr = vgl.vertexAttribute('far'),
-	        flagsAttr = vgl.vertexAttribute('flags'),
-	        strkWidthAttr = vgl.vertexAttribute('strokeWidth'),
-	        strkColorAttr = vgl.vertexAttribute('strokeColor'),
-	        strkOpacityAttr = vgl.vertexAttribute('strokeOpacity'),
-	        // Shader uniforms
-	        mviUnif = new vgl.modelViewUniform('modelViewMatrix'),
-	        prjUnif = new vgl.projectionUniform('projectionMatrix'),
-	        geom = vgl.geometryData(),
-	        // Sources
-	        posData = vgl.sourceDataP3fv({name: 'pos'}),
-	        prvPosData = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Four, {name: 'prev'}),
-	        nxtPosData = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Five, {name: 'next'}),
-	        farPosData = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Six, {name: 'far'}),
-	        flagsData = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Seven, {name: 'flags'}),
-	        strkWidthData = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.One, {name: 'strokeWidth'}),
-	        strkColorData = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Two, {name: 'strokeColor'}),
-	        strkOpacityData = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Three, {name: 'strokeOpacity'}),
-	        // Primitive indices
-	        triangles = vgl.triangles();
-
-	    m_pixelWidthUnif = new vgl.floatUniform('pixelWidth',
-	                          1.0 / m_this.renderer().width());
-	    m_aspectUniform = new vgl.floatUniform('aspect',
-	        m_this.renderer().width() / m_this.renderer().height());
-	    m_miterLimitUniform = new vgl.floatUniform('miterLimit', 10);
-	    m_antialiasingUniform = new vgl.floatUniform('antialiasing', 0);
-	    m_flagsUniform = new vgl.floatUniform('fixedFlags', 0);
-
-	    s_init.call(m_this, arg);
-	    m_material = vgl.material();
-	    m_mapper = vgl.mapper({dynamicDraw: m_dynamicDraw});
-
-	    prog.addVertexAttribute(posAttr, vgl.vertexAttributeKeys.Position);
-	    prog.addVertexAttribute(strkWidthAttr, vgl.vertexAttributeKeysIndexed.One);
-	    prog.addVertexAttribute(strkColorAttr, vgl.vertexAttributeKeysIndexed.Two);
-	    prog.addVertexAttribute(strkOpacityAttr, vgl.vertexAttributeKeysIndexed.Three);
-	    prog.addVertexAttribute(prvAttr, vgl.vertexAttributeKeysIndexed.Four);
-	    prog.addVertexAttribute(nxtAttr, vgl.vertexAttributeKeysIndexed.Five);
-	    prog.addVertexAttribute(farAttr, vgl.vertexAttributeKeysIndexed.Six);
-	    prog.addVertexAttribute(flagsAttr, vgl.vertexAttributeKeysIndexed.Seven);
-
-	    prog.addUniform(mviUnif);
-	    prog.addUniform(prjUnif);
-	    prog.addUniform(m_pixelWidthUnif);
-	    prog.addUniform(m_aspectUniform);
-	    prog.addUniform(m_miterLimitUniform);
-	    prog.addUniform(m_antialiasingUniform);
-	    prog.addUniform(m_flagsUniform);
-
-	    prog.addShader(fs);
-	    prog.addShader(vs);
-
-	    m_material.addAttribute(prog);
-	    m_material.addAttribute(vgl.blend());
-
-	    m_actor = vgl.actor();
-	    m_actor.setMaterial(m_material);
-	    m_actor.setMapper(m_mapper);
-
-	    geom.addSource(posData);
-	    geom.addSource(prvPosData);
-	    geom.addSource(nxtPosData);
-	    geom.addSource(farPosData);
-	    geom.addSource(strkWidthData);
-	    geom.addSource(strkColorData);
-	    geom.addSource(strkOpacityData);
-	    geom.addSource(flagsData);
-	    geom.addPrimitive(triangles);
-	    m_mapper.setGeometryData(geom);
-	  };
-
-	  /**
-	   * Return list of actors
-	   *
-	   * @returns {vgl.actor[]}
-	   */
-	  this.actors = function () {
-	    if (!m_actor) {
-	      return [];
-	    }
-	    return [m_actor];
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-	    createGLLines();
-
-	    if (!m_this.renderer().contextRenderer().hasActor(m_actor)) {
-	      m_this.renderer().contextRenderer().addActor(m_actor);
-	    }
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-
-	    if (m_this.dataTime().getMTime() >= m_this.buildTime().getMTime() ||
-	        m_this.updateTime().getMTime() <= m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    m_pixelWidthUnif.set(1.0 / m_this.renderer().width());
-	    m_aspectUniform.set(m_this.renderer().width() /
-	                        m_this.renderer().height());
-	    m_actor.setVisible(m_this.visible());
-	    m_actor.material().setBinNumber(m_this.bin());
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    m_this.renderer().contextRenderer().removeActor(m_actor);
-	    m_actor = null;
-	    s_exit();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(gl_lineFeature, lineFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[lineFeature.capabilities.basic] = true;
-	capabilities[lineFeature.capabilities.multicolor] = true;
-
-	// Now register it
-	registerFeature('vgl', 'line', gl_lineFeature, capabilities);
-
-	module.exports = gl_lineFeature;
-
-
-/***/ }),
-/* 264 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var $ = __webpack_require__(1);
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var pointFeature = __webpack_require__(212);
-
-	/**
-	 * Create a new instance of pointFeature
-	 *
-	 * @class geo.gl.pointFeature
-	 * @extends geo.pointFeature
-	 * @returns {geo.gl.pointFeature}
-	 */
-	var gl_pointFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof gl_pointFeature)) {
-	    return new gl_pointFeature(arg);
-	  }
-	  arg = arg || {};
-	  pointFeature.call(this, arg);
-
-	  var vgl = __webpack_require__(86);
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-	  var object = __webpack_require__(262);
-
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_actor = null,
-	      m_mapper = null,
-	      m_pixelWidthUniform = null,
-	      m_aspectUniform = null,
-	      m_dynamicDraw = arg.dynamicDraw === undefined ? false : arg.dynamicDraw,
-	      /* If you are drawing very large points, you will often get better
-	       * performance using a different primitiveShape.  The 'sprite' shape uses
-	       * the least memory, but has hardware-specific limitations to its size.
-	       * 'triangle' seems to be fastest on low-powered hardware, but 'square'
-	       * visits fewer fragments. */
-	      m_primitiveShape = 'sprite', // arg can change this, below
-	      s_init = this._init,
-	      s_update = this._update,
-	      s_updateStyleFromArray = this.updateStyleFromArray,
-	      vertexShaderSource = null,
-	      fragmentShaderSource = null;
-
-	  if (arg.primitiveShape === 'triangle' ||
-	      arg.primitiveShape === 'square' ||
-	      arg.primitiveShape === 'sprite') {
-	    m_primitiveShape = arg.primitiveShape;
-	  }
-
-	  vertexShaderSource = [
-	    '#ifdef GL_ES',
-	    '  precision highp float;',
-	    '#endif',
-	    'attribute vec3 pos;',
-	    'attribute float radius;',
-	    'attribute vec3 fillColor;',
-	    'attribute vec3 strokeColor;',
-	    'attribute float fillOpacity;',
-	    'attribute float strokeWidth;',
-	    'attribute float strokeOpacity;',
-	    'attribute float fill;',
-	    'attribute float stroke;',
-	    'uniform float pixelWidth;',
-	    'uniform float aspect;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying vec4 fillColorVar;',
-	    'varying vec4 strokeColorVar;',
-	    'varying float radiusVar;',
-	    'varying float strokeWidthVar;',
-	    'varying float fillVar;',
-	    'varying float strokeVar;'
-	  ];
-
-	  if (m_primitiveShape !== 'sprite') {
-	    vertexShaderSource = vertexShaderSource.concat([
-	      'attribute vec2 unit;',
-	      'varying vec3 unitVar;'
-	    ]);
-	  }
-
-	  vertexShaderSource.push.apply(vertexShaderSource, [
-	    'void main(void)',
-	    '{',
-	    '  strokeWidthVar = strokeWidth;',
-	    '  // No stroke or fill implies nothing to draw',
-	    '  if (stroke < 1.0 || strokeWidth <= 0.0 || strokeOpacity <= 0.0) {',
-	    '    strokeVar = 0.0;',
-	    '    strokeWidthVar = 0.0;',
-	    '  }',
-	    '  else',
-	    '    strokeVar = 1.0;',
-	    '  if (fill < 1.0 || radius <= 0.0 || fillOpacity <= 0.0)',
-	    '    fillVar = 0.0;',
-	    '  else',
-	    '    fillVar = 1.0;',
-	    /* If the point has no visible pixels, skip doing computations on it. */
-	    '  if (fillVar == 0.0 && strokeVar == 0.0) {',
-	    '    gl_Position = vec4(2, 2, 0, 1);',
-	    '    return;',
-	    '  }',
-	    '  fillColorVar = vec4 (fillColor, fillOpacity);',
-	    '  strokeColorVar = vec4 (strokeColor, strokeOpacity);',
-	    '  radiusVar = radius;'
-	  ]);
-
-	  if (m_primitiveShape === 'sprite') {
-	    vertexShaderSource.push.apply(vertexShaderSource, [
-	      '  gl_Position = (projectionMatrix * modelViewMatrix * vec4(pos, 1.0)).xyzw;',
-	      '  gl_PointSize = 2.0 * (radius + strokeWidthVar); ',
-	      '}'
-	    ]);
-	  } else {
-	    vertexShaderSource.push.apply(vertexShaderSource, [
-	      '  unitVar = vec3 (unit, 1.0);',
-	      '  vec4 p = (projectionMatrix * modelViewMatrix * vec4(pos, 1.0)).xyzw;',
-	      '  if (p.w != 0.0) {',
-	      '    p = p / p.w;',
-	      '  }',
-	      '  p += (radius + strokeWidthVar) * ',
-	      '       vec4 (unit.x * pixelWidth, unit.y * pixelWidth * aspect, 0.0, 1.0);',
-	      '  gl_Position = vec4(p.xyz, 1.0);',
-	      '}'
-	    ]);
-	  }
-	  vertexShaderSource = vertexShaderSource.join('\n');
-
-	  fragmentShaderSource = [
-	    '#ifdef GL_ES',
-	    '  precision highp float;',
-	    '#endif',
-	    'uniform float aspect;',
-	    'varying vec4 fillColorVar;',
-	    'varying vec4 strokeColorVar;',
-	    'varying float radiusVar;',
-	    'varying float strokeWidthVar;',
-	    'varying float fillVar;',
-	    'varying float strokeVar;'
-	  ];
-
-	  if (m_primitiveShape !== 'sprite') {
-	    fragmentShaderSource.push('varying vec3 unitVar;');
-	  }
-
-	  fragmentShaderSource.push.apply(fragmentShaderSource, [
-	    'void main () {',
-	    '  vec4 strokeColor, fillColor;',
-	    '  float endStep;',
-	    '  // No stroke or fill implies nothing to draw',
-	    '  if (fillVar == 0.0 && strokeVar == 0.0)',
-	    '    discard;'
-	  ]);
-
-	  if (m_primitiveShape === 'sprite') {
-	    fragmentShaderSource.push(
-	      '  float rad = 2.0 * length (gl_PointCoord - vec2(0.5));');
-	  } else {
-	    fragmentShaderSource.push(
-	      '  float rad = length (unitVar.xy);');
-	  }
-
-	  fragmentShaderSource.push.apply(fragmentShaderSource, [
-	    '  if (rad > 1.0)',
-	    '    discard;',
-	    '  // If there is no stroke, the fill region should transition to nothing',
-	    '  if (strokeVar == 0.0) {',
-	    '    strokeColor = vec4 (fillColorVar.rgb, 0.0);',
-	    '    endStep = 1.0;',
-	    '  } else {',
-	    '    strokeColor = strokeColorVar;',
-	    '    endStep = radiusVar / (radiusVar + strokeWidthVar);',
-	    '  }',
-	    '  // Likewise, if there is no fill, the stroke should transition to nothing',
-	    '  if (fillVar == 0.0)',
-	    '    fillColor = vec4 (strokeColor.rgb, 0.0);',
-	    '  else',
-	    '    fillColor = fillColorVar;',
-	    '  // Distance to antialias over',
-	    '  float antialiasDist = 3.0 / (2.0 * radiusVar);',
-	    '  if (rad < endStep) {',
-	    '    float step = smoothstep (endStep - antialiasDist, endStep, rad);',
-	    '    gl_FragColor = mix (fillColor, strokeColor, step);',
-	    '  } else {',
-	    '    float step = smoothstep (1.0 - antialiasDist, 1.0, rad);',
-	    '    gl_FragColor = mix (strokeColor, vec4 (strokeColor.rgb, 0.0), step);',
-	    '  }',
-	    '}'
-	  ]);
-
-	  fragmentShaderSource = fragmentShaderSource.join('\n');
-
-	  function createVertexShader() {
-	    var shader = new vgl.shader(vgl.GL.VERTEX_SHADER);
-	    shader.setShaderSource(vertexShaderSource);
-	    return shader;
-	  }
-
-	  function createFragmentShader() {
-	    var shader = new vgl.shader(vgl.GL.FRAGMENT_SHADER);
-	    shader.setShaderSource(fragmentShaderSource);
-	    return shader;
-	  }
-
-	  function pointPolygon(x, y, w, h) {
-	    var verts;
-	    switch (m_primitiveShape) {
-	      case 'triangle':
-	        /* Use an equilateral triangle.  While this has 30% more area than a
-	         * square, the reduction in vertices should help more than the
-	         * processing the additional fragments. */
-	        verts = [
-	          x, y - h * 2,
-	          x - w * Math.sqrt(3.0), y + h,
-	          x + w * Math.sqrt(3.0), y + h
-	        ];
-	        break;
-	      case 'sprite':
-	        /* Point sprite uses only one vertex per point. */
-	        verts = [x, y];
-	        break;
-	      default: // "square"
-	        /* Use a surrounding square split diagonally into two triangles. */
-	        verts = [
-	          x - w, y + h,
-	          x - w, y - h,
-	          x + w, y + h,
-	          x - w, y - h,
-	          x + w, y - h,
-	          x + w, y + h
-	        ];
-	        break;
-	    }
-	    return verts;
-	  }
-
-	  function createGLPoints() {
-	    // unit and associated data is not used when drawing sprite
-	    var i, j, numPts = m_this.data().length,
-	        unit = pointPolygon(0, 0, 1, 1),
-	        position = new Array(numPts * 3), posBuf, posVal, posFunc,
-	        unitBuf, indices,
-	        radius, radiusVal, radFunc,
-	        stroke, strokeVal, strokeFunc,
-	        strokeWidth, strokeWidthVal, strokeWidthFunc,
-	        strokeOpacity, strokeOpacityVal, strokeOpacityFunc,
-	        strokeColor, strokeColorVal, strokeColorFunc,
-	        fill, fillVal, fillFunc,
-	        fillOpacity, fillOpacityVal, fillOpacityFunc,
-	        fillColor, fillColorVal, fillColorFunc,
-	        vpf = m_this.verticesPerFeature(),
-	        data = m_this.data(),
-	        item, ivpf, ivpf3, iunit, i3,
-	        geom = m_mapper.geometryData(), nonzeroZ;
-
-	    posFunc = m_this.position();
-	    radFunc = m_this.style.get('radius');
-	    strokeFunc = m_this.style.get('stroke');
-	    strokeWidthFunc = m_this.style.get('strokeWidth');
-	    strokeOpacityFunc = m_this.style.get('strokeOpacity');
-	    strokeColorFunc = m_this.style.get('strokeColor');
-	    fillFunc = m_this.style.get('fill');
-	    fillOpacityFunc = m_this.style.get('fillOpacity');
-	    fillColorFunc = m_this.style.get('fillColor');
-
-	    /* It is more efficient to do a transform on a single array rather than on
-	     * an array of arrays or an array of objects. */
-	    for (i = i3 = 0; i < numPts; i += 1, i3 += 3) {
-	      posVal = posFunc(data[i], i);
-	      position[i3] = posVal.x;
-	      position[i3 + 1] = posVal.y;
-	      position[i3 + 2] = posVal.z || 0;
-	      nonzeroZ = nonzeroZ || position[i3 + 2];
-	    }
-	    position = transform.transformCoordinates(
-	                  m_this.gcs(), m_this.layer().map().gcs(),
-	                  position, 3);
-	    /* Some transforms modify the z-coordinate.  If we started with all zero z
-	     * coordinates, don't modify them.  This could be changed if the
-	     * z-coordinate space of the gl cube is scaled appropriately. */
-	    if (!nonzeroZ && m_this.gcs() !== m_this.layer().map().gcs()) {
-	      for (i = i3 = 0; i < numPts; i += 1, i3 += 3) {
-	        position[i3 + 2] = 0;
-	      }
-	    }
-
-	    posBuf = util.getGeomBuffer(geom, 'pos', vpf * numPts * 3);
-
-	    if (m_primitiveShape !== 'sprite') {
-	      unitBuf = util.getGeomBuffer(geom, 'unit', vpf * numPts * 2);
-	    }
-
-	    radius = util.getGeomBuffer(geom, 'radius', vpf * numPts);
-	    stroke = util.getGeomBuffer(geom, 'stroke', vpf * numPts);
-	    strokeWidth = util.getGeomBuffer(geom, 'strokeWidth', vpf * numPts);
-	    strokeOpacity = util.getGeomBuffer(geom, 'strokeOpacity', vpf * numPts);
-	    strokeColor = util.getGeomBuffer(geom, 'strokeColor', vpf * numPts * 3);
-	    fill = util.getGeomBuffer(geom, 'fill', vpf * numPts);
-	    fillOpacity = util.getGeomBuffer(geom, 'fillOpacity', vpf * numPts);
-	    fillColor = util.getGeomBuffer(geom, 'fillColor', vpf * numPts * 3);
-	    indices = geom.primitive(0).indices();
-	    if (!(indices instanceof Uint16Array) || indices.length !== vpf * numPts) {
-	      indices = new Uint16Array(vpf * numPts);
-	      geom.primitive(0).setIndices(indices);
-	    }
-
-	    for (i = ivpf = ivpf3 = iunit = i3 = 0; i < numPts; i += 1, i3 += 3) {
-	      item = data[i];
-	      if (m_primitiveShape !== 'sprite') {
-	        for (j = 0; j < unit.length; j += 1, iunit += 1) {
-	          unitBuf[iunit] = unit[j];
-	        }
-	      }
-	      /* We can ignore the indicies (they will all be zero) */
-	      radiusVal = radFunc(item, i);
-	      strokeVal = strokeFunc(item, i) ? 1.0 : 0.0;
-	      strokeWidthVal = strokeWidthFunc(item, i);
-	      strokeOpacityVal = strokeOpacityFunc(item, i);
-	      strokeColorVal = strokeColorFunc(item, i);
-	      fillVal = fillFunc(item, i) ? 1.0 : 0.0;
-	      fillOpacityVal = fillOpacityFunc(item, i);
-	      fillColorVal = fillColorFunc(item, i);
-	      for (j = 0; j < vpf; j += 1, ivpf += 1, ivpf3 += 3) {
-	        posBuf[ivpf3] = position[i3];
-	        posBuf[ivpf3 + 1] = position[i3 + 1];
-	        posBuf[ivpf3 + 2] = position[i3 + 2];
-	        radius[ivpf] = radiusVal;
-	        stroke[ivpf] = strokeVal;
-	        strokeWidth[ivpf] = strokeWidthVal;
-	        strokeOpacity[ivpf] = strokeOpacityVal;
-	        strokeColor[ivpf3] = strokeColorVal.r;
-	        strokeColor[ivpf3 + 1] = strokeColorVal.g;
-	        strokeColor[ivpf3 + 2] = strokeColorVal.b;
-	        fill[ivpf] = fillVal;
-	        fillOpacity[ivpf] = fillOpacityVal;
-	        fillColor[ivpf3] = fillColorVal.r;
-	        fillColor[ivpf3 + 1] = fillColorVal.g;
-	        fillColor[ivpf3 + 2] = fillColorVal.b;
-	      }
-	    }
-
-	    geom.boundsDirty(true);
-	    m_mapper.modified();
-	    m_mapper.boundsDirtyTimestamp().modified();
-	  }
-
-	  /**
-	   * Return list of actors
-	   *
-	   * @returns {vgl.actor[]}
-	   */
-	  this.actors = function () {
-	    if (!m_actor) {
-	      return [];
-	    }
-	    return [m_actor];
-	  };
-
-	  /**
-	   * Return the number of vertices used for each point.
-	   *
-	   * @returns {Number}
-	   */
-	  this.verticesPerFeature = function () {
-	    var unit = pointPolygon(0, 0, 1, 1);
-	    return unit.length / 2;
-	  };
-
-	  this.updateStyleFromArray = function (keyOrObject, styleArray, refresh) {
-	    var bufferedKeys = {
-	      fill: 'bool',
-	      fillColor: 3,
-	      fillOpacity: 1,
-	      radius: 1,
-	      stroke: 'bool',
-	      strokeColor: 3,
-	      strokeOpacity: 1,
-	      strokeWidth: 1
-	    };
-	    var needsRefresh, needsRender;
-	    if (typeof keyOrObject === 'string') {
-	      var obj = {};
-	      obj[keyOrObject] = styleArray;
-	      keyOrObject = obj;
-	    }
-	    $.each(keyOrObject, function (key, styleArray) {
-	      if (m_this.visible() && m_actor && bufferedKeys[key] && !needsRefresh && !m_this.clustering()) {
-	        var vpf, mapper, buffer, numPts, value, i, j, v, bpv;
-	        bpv = bufferedKeys[key] === 'bool' ? 1 : bufferedKeys[key];
-	        numPts = m_this.data().length;
-	        mapper = m_actor.mapper();
-	        buffer = mapper.getSourceBuffer(key);
-	        vpf = m_this.verticesPerFeature();
-	        if (!buffer || !numPts || numPts * vpf * bpv !== buffer.length) {
-	          needsRefresh = true;
-	        } else {
-	          switch (bufferedKeys[key]) {
-	            case 1:
-	              for (i = 0, v = 0; i < numPts; i += 1) {
-	                value = styleArray[i];
-	                for (j = 0; j < vpf; j += 1, v += 1) {
-	                  buffer[v] = value;
-	                }
-	              }
-	              break;
-	            case 3:
-	              for (i = 0, v = 0; i < numPts; i += 1) {
-	                value = styleArray[i];
-	                for (j = 0; j < vpf; j += 1, v += 3) {
-	                  buffer[v] = value.r;
-	                  buffer[v + 1] = value.g;
-	                  buffer[v + 2] = value.b;
-	                }
-	              }
-	              break;
-	            case 'bool':
-	              for (i = 0, v = 0; i < numPts; i += 1) {
-	                value = styleArray[i] ? 1.0 : 0.0;
-	                for (j = 0; j < vpf; j += 1, v += 1) {
-	                  buffer[v] = value;
-	                }
-	              }
-	              break;
-	          }
-	          mapper.updateSourceBuffer(key);
-	          /* This could probably be even faster than calling _render after
-	           * updating the buffer, if the context's buffer was bound and
-	           * updated.  This would requiring knowing the webgl context and
-	           * probably the source to buffer mapping. */
-	          needsRender = true;
-	        }
-	      } else {
-	        needsRefresh = true;
-	      }
-	      s_updateStyleFromArray(key, styleArray, false);
-	    });
-	    if (m_this.visible() && needsRefresh) {
-	      m_this.draw();
-	    } else if (needsRender) {
-	      m_this.renderer()._render();
-	    }
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    var prog = vgl.shaderProgram(),
-	        vertexShader = createVertexShader(),
-	        fragmentShader = createFragmentShader(),
-	        posAttr = vgl.vertexAttribute('pos'),
-	        unitAttr = vgl.vertexAttribute('unit'),
-	        radAttr = vgl.vertexAttribute('radius'),
-	        strokeWidthAttr = vgl.vertexAttribute('strokeWidth'),
-	        fillColorAttr = vgl.vertexAttribute('fillColor'),
-	        fillAttr = vgl.vertexAttribute('fill'),
-	        strokeColorAttr = vgl.vertexAttribute('strokeColor'),
-	        strokeAttr = vgl.vertexAttribute('stroke'),
-	        fillOpacityAttr = vgl.vertexAttribute('fillOpacity'),
-	        strokeOpacityAttr = vgl.vertexAttribute('strokeOpacity'),
-	        modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	        projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	        mat = vgl.material(),
-	        blend = vgl.blend(),
-	        geom = vgl.geometryData(),
-	        sourcePositions = vgl.sourceDataP3fv({'name': 'pos'}),
-	        sourceUnits = vgl.sourceDataAnyfv(
-	            2, vgl.vertexAttributeKeysIndexed.One, {'name': 'unit'}),
-	        sourceRadius = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Two, {'name': 'radius'}),
-	        sourceStrokeWidth = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Three, {'name': 'strokeWidth'}),
-	        sourceFillColor = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Four, {'name': 'fillColor'}),
-	        sourceFill = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Five, {'name': 'fill'}),
-	        sourceStrokeColor = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Six, {'name': 'strokeColor'}),
-	        sourceStroke = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Seven, {'name': 'stroke'}),
-	        sourceAlpha = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Eight, {'name': 'fillOpacity'}),
-	        sourceStrokeOpacity = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Nine, {'name': 'strokeOpacity'}),
-	        primitive = new vgl.triangles();
-
-	    if (m_primitiveShape === 'sprite') {
-	      primitive = new vgl.points();
-	    }
-
-	    m_pixelWidthUniform = new vgl.floatUniform('pixelWidth',
-	                            2.0 / m_this.renderer().width());
-	    m_aspectUniform = new vgl.floatUniform('aspect',
-	                        m_this.renderer().width() / m_this.renderer().height());
-
-	    s_init.call(m_this, arg);
-	    m_mapper = vgl.mapper({dynamicDraw: m_dynamicDraw});
-
-	    // TODO: Right now this is ugly but we will fix it.
-	    prog.addVertexAttribute(posAttr, vgl.vertexAttributeKeys.Position);
-	    if (m_primitiveShape !== 'sprite') {
-	      prog.addVertexAttribute(unitAttr, vgl.vertexAttributeKeysIndexed.One);
-	    }
-
-	    prog.addVertexAttribute(radAttr, vgl.vertexAttributeKeysIndexed.Two);
-	    prog.addVertexAttribute(strokeWidthAttr, vgl.vertexAttributeKeysIndexed.Three);
-	    prog.addVertexAttribute(fillColorAttr, vgl.vertexAttributeKeysIndexed.Four);
-	    prog.addVertexAttribute(fillAttr, vgl.vertexAttributeKeysIndexed.Five);
-	    prog.addVertexAttribute(strokeColorAttr, vgl.vertexAttributeKeysIndexed.Six);
-	    prog.addVertexAttribute(strokeAttr, vgl.vertexAttributeKeysIndexed.Seven);
-	    prog.addVertexAttribute(fillOpacityAttr, vgl.vertexAttributeKeysIndexed.Eight);
-	    prog.addVertexAttribute(strokeOpacityAttr, vgl.vertexAttributeKeysIndexed.Nine);
-
-	    prog.addUniform(m_pixelWidthUniform);
-	    prog.addUniform(m_aspectUniform);
-	    prog.addUniform(modelViewUniform);
-	    prog.addUniform(projectionUniform);
-
-	    prog.addShader(fragmentShader);
-	    prog.addShader(vertexShader);
-
-	    mat.addAttribute(prog);
-	    mat.addAttribute(blend);
-
-	    m_actor = vgl.actor();
-	    m_actor.setMaterial(mat);
-	    m_actor.setMapper(m_mapper);
-
-	    geom.addSource(sourcePositions);
-	    geom.addSource(sourceUnits);
-	    geom.addSource(sourceRadius);
-	    geom.addSource(sourceStrokeWidth);
-	    geom.addSource(sourceFillColor);
-	    geom.addSource(sourceFill);
-	    geom.addSource(sourceStrokeColor);
-	    geom.addSource(sourceStroke);
-	    geom.addSource(sourceAlpha);
-	    geom.addSource(sourceStrokeOpacity);
-	    geom.addPrimitive(primitive);
-	    m_mapper.setGeometryData(geom);
-	  };
-
-	  /**
-	   * Build
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-
-	    if (m_actor) {
-	      m_this.renderer().contextRenderer().removeActor(m_actor);
-	    }
-
-	    createGLPoints();
-
-	    m_this.renderer().contextRenderer().addActor(m_actor);
-	    m_this.renderer().contextRenderer().render();
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Update
-	   *
-	   * @override
-	   */
-	  this._update = function () {
-
-	    s_update.call(m_this);
-
-	    // For now build if the data or style changes. In the future we may
-	    // we able to partially update the data using dynamic gl buffers.
-	    if (m_this.dataTime().getMTime() >= m_this.buildTime().getMTime() ||
-	        m_this.updateTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    // Update uniforms
-	    m_pixelWidthUniform.set(2.0 / m_this.renderer().width());
-	    m_aspectUniform.set(m_this.renderer().width() /
-	                        m_this.renderer().height());
-
-	    m_actor.setVisible(m_this.visible());
-	    m_actor.material().setBinNumber(m_this.bin());
-
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    m_this.renderer().contextRenderer().removeActor(m_actor);
-	    m_actor = null;
-	    s_exit();
-	  };
-
-	  m_this._init();
-	  return this;
-	};
-
-	inherit(gl_pointFeature, pointFeature);
-
-	// Now register it
-	registerFeature('vgl', 'point', gl_pointFeature);
-
-	module.exports = gl_pointFeature;
-
-
-/***/ }),
-/* 265 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var polygonFeature = __webpack_require__(217);
-
-	/**
-	 * Create a new instance of gl.polygonFeature.
-	 *
-	 * @class
-	 * @alias geo.gl.polygonFeature
-	 * @extends geo.polygonFeature
-	 * @param {geo.polygonFeature.spec} arg
-	 * @returns {geo.gl.polygonFeature}
-	 */
-	var gl_polygonFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof gl_polygonFeature)) {
-	    return new gl_polygonFeature(arg);
-	  }
-	  arg = arg || {};
-	  polygonFeature.call(this, arg);
-
-	  var vgl = __webpack_require__(86);
-	  var earcut = __webpack_require__(266);
-	  var transform = __webpack_require__(11);
-	  var util = __webpack_require__(83);
-	  var object = __webpack_require__(262);
-
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_actor = vgl.actor(),
-	      m_mapper = vgl.mapper(),
-	      m_material = vgl.material(),
-	      m_geometry,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_updateAnimFrameRef;
-
-	  function createVertexShader() {
-	    var vertexShaderSource = [
-	          'attribute vec3 pos;',
-	          'attribute vec3 fillColor;',
-	          'attribute float fillOpacity;',
-	          'uniform mat4 modelViewMatrix;',
-	          'uniform mat4 projectionMatrix;',
-	          'varying vec4 fillColorVar;',
-
-	          'void main(void)',
-	          '{',
-	          '  vec4 clipPos = projectionMatrix * modelViewMatrix * vec4(pos.xyz, 1);',
-	          '  if (clipPos.w != 0.0) {',
-	          '    clipPos = clipPos/clipPos.w;',
-	          '  }',
-	          '  fillColorVar = vec4(fillColor, fillOpacity);',
-	          '  gl_Position = clipPos;',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.VERTEX_SHADER);
-	    shader.setShaderSource(vertexShaderSource);
-	    return shader;
-	  }
-
-	  function createFragmentShader() {
-	    var fragmentShaderSource = [
-	          '#ifdef GL_ES',
-	          '  precision highp float;',
-	          '#endif',
-	          'varying vec4 fillColorVar;',
-	          'void main () {',
-	          '  gl_FragColor = fillColorVar;',
-	          '}'
-	        ].join('\n'),
-	        shader = new vgl.shader(vgl.GL.FRAGMENT_SHADER);
-	    shader.setShaderSource(fragmentShaderSource);
-	    return shader;
-	  }
-
-	  /**
-	   * Create and style the triangles need to render the polygons.
-	   *
-	   * There are several optimizations to do less work when possible.  If only
-	   * styles have changed, the triangulation is not recomputed, nor is the
-	   * geometry re-transformed.  If styles use static values (rather than
-	   * functions), they are only calculated once.  If a polygon reports that it
-	   * has a uniform style, then styles are only calculated once for that polygon
-	   * (the uniform property may be different per polygon or per update).
-	   * Array.map is slower in Chrome that using a loop, so loops are used in
-	   * places that would be conceptually served by maps.
-	   *
-	   * @param {boolean} onlyStyle if true, use the existing geoemtry and just
-	   *    recalculate the style.
-	   */
-	  function createGLPolygons(onlyStyle) {
-	    var posBuf, posFunc, polyFunc,
-	        fillColor, fillColorFunc, fillColorVal,
-	        fillOpacity, fillOpacityFunc, fillOpacityVal,
-	        fillFunc, fillVal,
-	        uniformPolyFunc, uniform,
-	        indices,
-	        items = [],
-	        target_gcs = m_this.gcs(),
-	        map_gcs = m_this.layer().map().gcs(),
-	        numPts = 0,
-	        geom = m_mapper.geometryData(),
-	        color, opacity, fill, d, d3, vertices, i, j, k, n,
-	        record, item, itemIndex, original;
-
-	    fillColorFunc = m_this.style.get('fillColor');
-	    fillColorVal = util.isFunction(m_this.style('fillColor')) ? undefined : fillColorFunc();
-	    fillOpacityFunc = m_this.style.get('fillOpacity');
-	    fillOpacityVal = util.isFunction(m_this.style('fillOpacity')) ? undefined : fillOpacityFunc();
-	    fillFunc = m_this.style.get('fill');
-	    fillVal = util.isFunction(m_this.style('fill')) ? undefined : fillFunc();
-	    uniformPolyFunc = m_this.style.get('uniformPolygon');
-
-	    if (!onlyStyle) {
-	      posFunc = m_this.style.get('position');
-	      polyFunc = m_this.style.get('polygon');
-	      m_this.data().forEach(function (item, itemIndex) {
-	        var polygon, outer, geometry, c;
-
-	        polygon = polyFunc(item, itemIndex);
-	        if (!polygon) {
-	          return;
-	        }
-	        outer = polygon.outer || (Array.isArray(polygon) ? polygon : []);
-
-	        /* expand to an earcut polygon geometry.  We had been using a map call,
-	         * but using loops is much faster in Chrome (4 versus 33 ms for one
-	         * test). */
-	        geometry = new Array(outer.length * 3);
-	        for (i = d3 = 0; i < outer.length; i += 1, d3 += 3) {
-	          c = posFunc(outer[i], i, item, itemIndex);
-	          geometry[d3] = c.x;
-	          geometry[d3 + 1] = c.y;
-	          geometry[d3 + 2] = c.z || 0;
-	        }
-	        geometry = {vertices: geometry, dimensions: 3, holes: []};
-	        original = outer;
-
-	        if (polygon.inner) {
-	          polygon.inner.forEach(function (hole) {
-	            original = original.concat(hole);
-	            geometry.holes.push(d3 / 3);
-	            for (i = 0; i < hole.length; i += 1, d3 += 3) {
-	              c = posFunc(hole[i], i, item, itemIndex);
-	              geometry.vertices[d3] = c.x;
-	              geometry.vertices[d3 + 1] = c.y;
-	              geometry.vertices[d3 + 2] = c.z || 0;
-	            }
-	          });
-	        }
-
-	        // tranform to map gcs
-	        geometry.vertices = transform.transformCoordinates(
-	          target_gcs,
-	          map_gcs,
-	          geometry.vertices,
-	          geometry.dimensions
-	        );
-
-	        record = {
-	          // triangulate
-	          triangles: earcut(geometry.vertices, geometry.holes, geometry.dimensions),
-	          vertices: geometry.vertices,
-	          original: original,
-	          item: item,
-	          itemIndex: itemIndex
-	        };
-	        if (record.triangles.length) {
-	          items.push(record);
-	          numPts += record.triangles.length;
-	        }
-	      });
-	      posBuf = util.getGeomBuffer(geom, 'pos', numPts * 3);
-	      indices = geom.primitive(0).indices();
-	      if (!(indices instanceof Uint16Array) || indices.length !== numPts) {
-	        indices = new Uint16Array(numPts);
-	        geom.primitive(0).setIndices(indices);
-	      }
-	      m_geometry = {items: items, numPts: numPts};
-	    } else {
-	      items = m_geometry.items;
-	      numPts = m_geometry.numPts;
-	    }
-	    fillColor = util.getGeomBuffer(geom, 'fillColor', numPts * 3);
-	    fillOpacity = util.getGeomBuffer(geom, 'fillOpacity', numPts);
-	    d = d3 = 0;
-	    color = fillColorVal;
-	    opacity = fillOpacityVal;
-	    fill = fillVal;
-	    for (k = 0; k < items.length; k += 1) {
-	      n = items[k].triangles.length;
-	      vertices = items[k].vertices;
-	      item = items[k].item;
-	      itemIndex = items[k].itemIndex;
-	      original = items[k].original;
-	      uniform = uniformPolyFunc(item, itemIndex);
-	      if (uniform) {
-	        if (fillColorVal === undefined) {
-	          color = fillColorFunc(vertices[0], 0, item, itemIndex);
-	        }
-	        if (fillOpacityVal === undefined) {
-	          opacity = fillOpacityFunc(vertices[0], 0, item, itemIndex);
-	        }
-	      }
-	      if (fillVal === undefined) {
-	        fill = fillFunc(item, itemIndex);
-	      }
-	      if (!fill) {
-	        opacity = 0;
-	      }
-	      if (uniform && onlyStyle && items[k].uniform && items[k].color &&
-	          color.r === items[k].color.r && color.g === items[k].color.g &&
-	          color.b === items[k].color.b && opacity === items[k].opacity) {
-	        d += n;
-	        d3 += n * 3;
-	        continue;
-	      }
-	      for (i = 0; i < n; i += 1, d += 1, d3 += 3) {
-	        if (onlyStyle && uniform) {
-	          fillColor[d3] = color.r;
-	          fillColor[d3 + 1] = color.g;
-	          fillColor[d3 + 2] = color.b;
-	          fillOpacity[d] = opacity;
-	        } else {
-	          j = items[k].triangles[i] * 3;
-	          if (!onlyStyle) {
-	            posBuf[d3] = vertices[j];
-	            posBuf[d3 + 1] = vertices[j + 1];
-	            posBuf[d3 + 2] = vertices[j + 2];
-	            indices[d] = i;
-	          }
-	          if (!uniform && fillColorVal === undefined) {
-	            color = fillColorFunc(original[j], j, item, itemIndex);
-	          }
-	          fillColor[d3] = color.r;
-	          fillColor[d3 + 1] = color.g;
-	          fillColor[d3 + 2] = color.b;
-	          if (!uniform && fillOpacityVal === undefined) {
-	            opacity = fillOpacityFunc(original[j], j, item, itemIndex);
-	          }
-	          fillOpacity[d] = opacity;
-	        }
-	      }
-	      if (uniform || items[k].uniform) {
-	        items[k].uniform = uniform;
-	        items[k].color = color;
-	        items[k].opacity = opacity;
-	      }
-	    }
-	    m_mapper.modified();
-	    if (!onlyStyle) {
-	      geom.boundsDirty(true);
-	      m_mapper.boundsDirtyTimestamp().modified();
-	    }
-	  }
-
-	  /**
-	   * Initialize.
-	   *
-	   * @param {geo.polygonFeature.spec} arg An object with options for the
-	   *    feature.
-	   */
-	  this._init = function (arg) {
-	    var prog = vgl.shaderProgram(),
-	        posAttr = vgl.vertexAttribute('pos'),
-	        fillColorAttr = vgl.vertexAttribute('fillColor'),
-	        fillOpacityAttr = vgl.vertexAttribute('fillOpacity'),
-	        modelViewUniform = new vgl.modelViewUniform('modelViewMatrix'),
-	        projectionUniform = new vgl.projectionUniform('projectionMatrix'),
-	        vertexShader = createVertexShader(),
-	        fragmentShader = createFragmentShader(),
-	        blend = vgl.blend(),
-	        geom = vgl.geometryData(),
-	        sourcePositions = vgl.sourceDataP3fv({'name': 'pos'}),
-	        sourceFillColor = vgl.sourceDataAnyfv(
-	            3, vgl.vertexAttributeKeysIndexed.Two, {'name': 'fillColor'}),
-	        sourceFillOpacity = vgl.sourceDataAnyfv(
-	            1, vgl.vertexAttributeKeysIndexed.Three, {'name': 'fillOpacity'}),
-	        trianglePrimitive = vgl.triangles();
-
-	    prog.addVertexAttribute(posAttr, vgl.vertexAttributeKeys.Position);
-	    prog.addVertexAttribute(fillColorAttr, vgl.vertexAttributeKeysIndexed.Two);
-	    prog.addVertexAttribute(fillOpacityAttr, vgl.vertexAttributeKeysIndexed.Three);
-
-	    prog.addUniform(modelViewUniform);
-	    prog.addUniform(projectionUniform);
-
-	    prog.addShader(fragmentShader);
-	    prog.addShader(vertexShader);
-
-	    m_material.addAttribute(prog);
-	    m_material.addAttribute(blend);
-
-	    m_actor.setMaterial(m_material);
-	    m_actor.setMapper(m_mapper);
-
-	    geom.addSource(sourcePositions);
-	    geom.addSource(sourceFillColor);
-	    geom.addSource(sourceFillOpacity);
-	    geom.addPrimitive(trianglePrimitive);
-	    m_mapper.setGeometryData(geom);
-
-	    s_init.call(m_this, arg);
-	  };
-
-	  /**
-	   * Build.
-	   *
-	   * @override
-	   */
-	  this._build = function () {
-
-	    createGLPolygons(m_this.dataTime().getMTime() < m_this.buildTime().getMTime() && m_geometry);
-
-	    if (!m_this.renderer().contextRenderer().hasActor(m_actor)) {
-	      m_this.renderer().contextRenderer().addActor(m_actor);
-	    }
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Update.
-	   *
-	   * @override
-	   */
-	  this._update = function (opts) {
-	    if (opts && opts.mayDelay) {
-	      m_updateAnimFrameRef = m_this.layer().map().scheduleAnimationFrame(m_this._update);
-	      return;
-	    }
-	    if (m_updateAnimFrameRef) {
-	      m_this.layer().map().scheduleAnimationFrame(m_this._update, 'remove');
-	      m_updateAnimFrameRef = null;
-	    }
-	    s_update.call(m_this);
-
-	    if (m_this.dataTime().getMTime() >= m_this.buildTime().getMTime() ||
-	        m_this.updateTime().getMTime() <= m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    m_actor.setVisible(m_this.visible());
-	    m_actor.material().setBinNumber(m_this.bin());
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Destroy.
-	   */
-	  this._exit = function () {
-	    m_this.renderer().contextRenderer().removeActor(m_actor);
-	    s_exit();
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(gl_polygonFeature, polygonFeature);
-
-	// Now register it
-	registerFeature('vgl', 'polygon', gl_polygonFeature);
-	module.exports = gl_polygonFeature;
-
-
-/***/ }),
-/* 266 */
-/***/ (function(module, exports) {
-
-	'use strict';
-
-	module.exports = earcut;
-
-	function earcut(data, holeIndices, dim) {
-
-	    dim = dim || 2;
-
-	    var hasHoles = holeIndices && holeIndices.length,
-	        outerLen = hasHoles ? holeIndices[0] * dim : data.length,
-	        outerNode = linkedList(data, 0, outerLen, dim, true),
-	        triangles = [];
-
-	    if (!outerNode) return triangles;
-
-	    var minX, minY, maxX, maxY, x, y, size;
-
-	    if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim);
-
-	    // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
-	    if (data.length > 80 * dim) {
-	        minX = maxX = data[0];
-	        minY = maxY = data[1];
-
-	        for (var i = dim; i < outerLen; i += dim) {
-	            x = data[i];
-	            y = data[i + 1];
-	            if (x < minX) minX = x;
-	            if (y < minY) minY = y;
-	            if (x > maxX) maxX = x;
-	            if (y > maxY) maxY = y;
-	        }
-
-	        // minX, minY and size are later used to transform coords into integers for z-order calculation
-	        size = Math.max(maxX - minX, maxY - minY);
-	    }
-
-	    earcutLinked(outerNode, triangles, dim, minX, minY, size);
-
-	    return triangles;
-	}
-
-	// create a circular doubly linked list from polygon points in the specified winding order
-	function linkedList(data, start, end, dim, clockwise) {
-	    var i, last;
-
-	    if (clockwise === (signedArea(data, start, end, dim) > 0)) {
-	        for (i = start; i < end; i += dim) last = insertNode(i, data[i], data[i + 1], last);
-	    } else {
-	        for (i = end - dim; i >= start; i -= dim) last = insertNode(i, data[i], data[i + 1], last);
-	    }
-
-	    if (last && equals(last, last.next)) {
-	        removeNode(last);
-	        last = last.next;
-	    }
-
-	    return last;
-	}
-
-	// eliminate colinear or duplicate points
-	function filterPoints(start, end) {
-	    if (!start) return start;
-	    if (!end) end = start;
-
-	    var p = start,
-	        again;
-	    do {
-	        again = false;
-
-	        if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
-	            removeNode(p);
-	            p = end = p.prev;
-	            if (p === p.next) return null;
-	            again = true;
-
-	        } else {
-	            p = p.next;
-	        }
-	    } while (again || p !== end);
-
-	    return end;
-	}
-
-	// main ear slicing loop which triangulates a polygon (given as a linked list)
-	function earcutLinked(ear, triangles, dim, minX, minY, size, pass) {
-	    if (!ear) return;
-
-	    // interlink polygon nodes in z-order
-	    if (!pass && size) indexCurve(ear, minX, minY, size);
-
-	    var stop = ear,
-	        prev, next;
-
-	    // iterate through ears, slicing them one by one
-	    while (ear.prev !== ear.next) {
-	        prev = ear.prev;
-	        next = ear.next;
-
-	        if (size ? isEarHashed(ear, minX, minY, size) : isEar(ear)) {
-	            // cut off the triangle
-	            triangles.push(prev.i / dim);
-	            triangles.push(ear.i / dim);
-	            triangles.push(next.i / dim);
-
-	            removeNode(ear);
-
-	            // skipping the next vertice leads to less sliver triangles
-	            ear = next.next;
-	            stop = next.next;
-
-	            continue;
-	        }
-
-	        ear = next;
-
-	        // if we looped through the whole remaining polygon and can't find any more ears
-	        if (ear === stop) {
-	            // try filtering points and slicing again
-	            if (!pass) {
-	                earcutLinked(filterPoints(ear), triangles, dim, minX, minY, size, 1);
-
-	            // if this didn't work, try curing all small self-intersections locally
-	            } else if (pass === 1) {
-	                ear = cureLocalIntersections(ear, triangles, dim);
-	                earcutLinked(ear, triangles, dim, minX, minY, size, 2);
-
-	            // as a last resort, try splitting the remaining polygon into two
-	            } else if (pass === 2) {
-	                splitEarcut(ear, triangles, dim, minX, minY, size);
-	            }
-
-	            break;
-	        }
-	    }
-	}
-
-	// check whether a polygon node forms a valid ear with adjacent nodes
-	function isEar(ear) {
-	    var a = ear.prev,
-	        b = ear,
-	        c = ear.next;
-
-	    if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
-
-	    // now make sure we don't have other points inside the potential ear
-	    var p = ear.next.next;
-
-	    while (p !== ear.prev) {
-	        if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
-	            area(p.prev, p, p.next) >= 0) return false;
-	        p = p.next;
-	    }
-
-	    return true;
-	}
-
-	function isEarHashed(ear, minX, minY, size) {
-	    var a = ear.prev,
-	        b = ear,
-	        c = ear.next;
-
-	    if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
-
-	    // triangle bbox; min & max are calculated like this for speed
-	    var minTX = a.x < b.x ? (a.x < c.x ? a.x : c.x) : (b.x < c.x ? b.x : c.x),
-	        minTY = a.y < b.y ? (a.y < c.y ? a.y : c.y) : (b.y < c.y ? b.y : c.y),
-	        maxTX = a.x > b.x ? (a.x > c.x ? a.x : c.x) : (b.x > c.x ? b.x : c.x),
-	        maxTY = a.y > b.y ? (a.y > c.y ? a.y : c.y) : (b.y > c.y ? b.y : c.y);
-
-	    // z-order range for the current triangle bbox;
-	    var minZ = zOrder(minTX, minTY, minX, minY, size),
-	        maxZ = zOrder(maxTX, maxTY, minX, minY, size);
-
-	    // first look for points inside the triangle in increasing z-order
-	    var p = ear.nextZ;
-
-	    while (p && p.z <= maxZ) {
-	        if (p !== ear.prev && p !== ear.next &&
-	            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
-	            area(p.prev, p, p.next) >= 0) return false;
-	        p = p.nextZ;
-	    }
-
-	    // then look for points in decreasing z-order
-	    p = ear.prevZ;
-
-	    while (p && p.z >= minZ) {
-	        if (p !== ear.prev && p !== ear.next &&
-	            pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) &&
-	            area(p.prev, p, p.next) >= 0) return false;
-	        p = p.prevZ;
-	    }
-
-	    return true;
-	}
-
-	// go through all polygon nodes and cure small local self-intersections
-	function cureLocalIntersections(start, triangles, dim) {
-	    var p = start;
-	    do {
-	        var a = p.prev,
-	            b = p.next.next;
-
-	        if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
-
-	            triangles.push(a.i / dim);
-	            triangles.push(p.i / dim);
-	            triangles.push(b.i / dim);
-
-	            // remove two nodes involved
-	            removeNode(p);
-	            removeNode(p.next);
-
-	            p = start = b;
-	        }
-	        p = p.next;
-	    } while (p !== start);
-
-	    return p;
-	}
-
-	// try splitting polygon into two and triangulate them independently
-	function splitEarcut(start, triangles, dim, minX, minY, size) {
-	    // look for a valid diagonal that divides the polygon into two
-	    var a = start;
-	    do {
-	        var b = a.next.next;
-	        while (b !== a.prev) {
-	            if (a.i !== b.i && isValidDiagonal(a, b)) {
-	                // split the polygon in two by the diagonal
-	                var c = splitPolygon(a, b);
-
-	                // filter colinear points around the cuts
-	                a = filterPoints(a, a.next);
-	                c = filterPoints(c, c.next);
-
-	                // run earcut on each half
-	                earcutLinked(a, triangles, dim, minX, minY, size);
-	                earcutLinked(c, triangles, dim, minX, minY, size);
-	                return;
-	            }
-	            b = b.next;
-	        }
-	        a = a.next;
-	    } while (a !== start);
-	}
-
-	// link every hole into the outer loop, producing a single-ring polygon without holes
-	function eliminateHoles(data, holeIndices, outerNode, dim) {
-	    var queue = [],
-	        i, len, start, end, list;
-
-	    for (i = 0, len = holeIndices.length; i < len; i++) {
-	        start = holeIndices[i] * dim;
-	        end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
-	        list = linkedList(data, start, end, dim, false);
-	        if (list === list.next) list.steiner = true;
-	        queue.push(getLeftmost(list));
-	    }
-
-	    queue.sort(compareX);
-
-	    // process holes from left to right
-	    for (i = 0; i < queue.length; i++) {
-	        eliminateHole(queue[i], outerNode);
-	        outerNode = filterPoints(outerNode, outerNode.next);
-	    }
-
-	    return outerNode;
-	}
-
-	function compareX(a, b) {
-	    return a.x - b.x;
-	}
-
-	// find a bridge between vertices that connects hole with an outer ring and and link it
-	function eliminateHole(hole, outerNode) {
-	    outerNode = findHoleBridge(hole, outerNode);
-	    if (outerNode) {
-	        var b = splitPolygon(outerNode, hole);
-	        filterPoints(b, b.next);
-	    }
-	}
-
-	// David Eberly's algorithm for finding a bridge between hole and outer polygon
-	function findHoleBridge(hole, outerNode) {
-	    var p = outerNode,
-	        hx = hole.x,
-	        hy = hole.y,
-	        qx = -Infinity,
-	        m;
-
-	    // find a segment intersected by a ray from the hole's leftmost point to the left;
-	    // segment's endpoint with lesser x will be potential connection point
-	    do {
-	        if (hy <= p.y && hy >= p.next.y) {
-	            var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
-	            if (x <= hx && x > qx) {
-	                qx = x;
-	                if (x === hx) {
-	                    if (hy === p.y) return p;
-	                    if (hy === p.next.y) return p.next;
-	                }
-	                m = p.x < p.next.x ? p : p.next;
-	            }
-	        }
-	        p = p.next;
-	    } while (p !== outerNode);
-
-	    if (!m) return null;
-
-	    if (hx === qx) return m.prev; // hole touches outer segment; pick lower endpoint
-
-	    // look for points inside the triangle of hole point, segment intersection and endpoint;
-	    // if there are no points found, we have a valid connection;
-	    // otherwise choose the point of the minimum angle with the ray as connection point
-
-	    var stop = m,
-	        mx = m.x,
-	        my = m.y,
-	        tanMin = Infinity,
-	        tan;
-
-	    p = m.next;
-
-	    while (p !== stop) {
-	        if (hx >= p.x && p.x >= mx &&
-	                pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
-
-	            tan = Math.abs(hy - p.y) / (hx - p.x); // tangential
-
-	            if ((tan < tanMin || (tan === tanMin && p.x > m.x)) && locallyInside(p, hole)) {
-	                m = p;
-	                tanMin = tan;
-	            }
-	        }
-
-	        p = p.next;
-	    }
-
-	    return m;
-	}
-
-	// interlink polygon nodes in z-order
-	function indexCurve(start, minX, minY, size) {
-	    var p = start;
-	    do {
-	        if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, size);
-	        p.prevZ = p.prev;
-	        p.nextZ = p.next;
-	        p = p.next;
-	    } while (p !== start);
-
-	    p.prevZ.nextZ = null;
-	    p.prevZ = null;
-
-	    sortLinked(p);
-	}
-
-	// Simon Tatham's linked list merge sort algorithm
-	// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
-	function sortLinked(list) {
-	    var i, p, q, e, tail, numMerges, pSize, qSize,
-	        inSize = 1;
-
-	    do {
-	        p = list;
-	        list = null;
-	        tail = null;
-	        numMerges = 0;
-
-	        while (p) {
-	            numMerges++;
-	            q = p;
-	            pSize = 0;
-	            for (i = 0; i < inSize; i++) {
-	                pSize++;
-	                q = q.nextZ;
-	                if (!q) break;
-	            }
-
-	            qSize = inSize;
-
-	            while (pSize > 0 || (qSize > 0 && q)) {
-
-	                if (pSize === 0) {
-	                    e = q;
-	                    q = q.nextZ;
-	                    qSize--;
-	                } else if (qSize === 0 || !q) {
-	                    e = p;
-	                    p = p.nextZ;
-	                    pSize--;
-	                } else if (p.z <= q.z) {
-	                    e = p;
-	                    p = p.nextZ;
-	                    pSize--;
-	                } else {
-	                    e = q;
-	                    q = q.nextZ;
-	                    qSize--;
-	                }
-
-	                if (tail) tail.nextZ = e;
-	                else list = e;
-
-	                e.prevZ = tail;
-	                tail = e;
-	            }
-
-	            p = q;
-	        }
-
-	        tail.nextZ = null;
-	        inSize *= 2;
-
-	    } while (numMerges > 1);
-
-	    return list;
-	}
-
-	// z-order of a point given coords and size of the data bounding box
-	function zOrder(x, y, minX, minY, size) {
-	    // coords are transformed into non-negative 15-bit integer range
-	    x = 32767 * (x - minX) / size;
-	    y = 32767 * (y - minY) / size;
-
-	    x = (x | (x << 8)) & 0x00FF00FF;
-	    x = (x | (x << 4)) & 0x0F0F0F0F;
-	    x = (x | (x << 2)) & 0x33333333;
-	    x = (x | (x << 1)) & 0x55555555;
-
-	    y = (y | (y << 8)) & 0x00FF00FF;
-	    y = (y | (y << 4)) & 0x0F0F0F0F;
-	    y = (y | (y << 2)) & 0x33333333;
-	    y = (y | (y << 1)) & 0x55555555;
-
-	    return x | (y << 1);
-	}
-
-	// find the leftmost node of a polygon ring
-	function getLeftmost(start) {
-	    var p = start,
-	        leftmost = start;
-	    do {
-	        if (p.x < leftmost.x) leftmost = p;
-	        p = p.next;
-	    } while (p !== start);
-
-	    return leftmost;
-	}
-
-	// check if a point lies within a convex triangle
-	function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
-	    return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 &&
-	           (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 &&
-	           (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
-	}
-
-	// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
-	function isValidDiagonal(a, b) {
-	    return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) &&
-	           locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b);
-	}
-
-	// signed area of a triangle
-	function area(p, q, r) {
-	    return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
-	}
-
-	// check if two points are equal
-	function equals(p1, p2) {
-	    return p1.x === p2.x && p1.y === p2.y;
-	}
-
-	// check if two segments intersect
-	function intersects(p1, q1, p2, q2) {
-	    if ((equals(p1, q1) && equals(p2, q2)) ||
-	        (equals(p1, q2) && equals(p2, q1))) return true;
-	    return area(p1, q1, p2) > 0 !== area(p1, q1, q2) > 0 &&
-	           area(p2, q2, p1) > 0 !== area(p2, q2, q1) > 0;
-	}
-
-	// check if a polygon diagonal intersects any polygon segments
-	function intersectsPolygon(a, b) {
-	    var p = a;
-	    do {
-	        if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i &&
-	                intersects(p, p.next, a, b)) return true;
-	        p = p.next;
-	    } while (p !== a);
-
-	    return false;
-	}
-
-	// check if a polygon diagonal is locally inside the polygon
-	function locallyInside(a, b) {
-	    return area(a.prev, a, a.next) < 0 ?
-	        area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 :
-	        area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
-	}
-
-	// check if the middle point of a polygon diagonal is inside the polygon
-	function middleInside(a, b) {
-	    var p = a,
-	        inside = false,
-	        px = (a.x + b.x) / 2,
-	        py = (a.y + b.y) / 2;
-	    do {
-	        if (((p.y > py) !== (p.next.y > py)) && (px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x))
-	            inside = !inside;
-	        p = p.next;
-	    } while (p !== a);
-
-	    return inside;
-	}
-
-	// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
-	// if one belongs to the outer ring and another to a hole, it merges it into a single ring
-	function splitPolygon(a, b) {
-	    var a2 = new Node(a.i, a.x, a.y),
-	        b2 = new Node(b.i, b.x, b.y),
-	        an = a.next,
-	        bp = b.prev;
-
-	    a.next = b;
-	    b.prev = a;
-
-	    a2.next = an;
-	    an.prev = a2;
-
-	    b2.next = a2;
-	    a2.prev = b2;
-
-	    bp.next = b2;
-	    b2.prev = bp;
-
-	    return b2;
-	}
-
-	// create a node and optionally link it with previous one (in a circular doubly linked list)
-	function insertNode(i, x, y, last) {
-	    var p = new Node(i, x, y);
-
-	    if (!last) {
-	        p.prev = p;
-	        p.next = p;
-
-	    } else {
-	        p.next = last.next;
-	        p.prev = last;
-	        last.next.prev = p;
-	        last.next = p;
-	    }
-	    return p;
-	}
-
-	function removeNode(p) {
-	    p.next.prev = p.prev;
-	    p.prev.next = p.next;
-
-	    if (p.prevZ) p.prevZ.nextZ = p.nextZ;
-	    if (p.nextZ) p.nextZ.prevZ = p.prevZ;
-	}
-
-	function Node(i, x, y) {
-	    // vertice index in coordinates array
-	    this.i = i;
-
-	    // vertex coordinates
-	    this.x = x;
-	    this.y = y;
-
-	    // previous and next vertice nodes in a polygon ring
-	    this.prev = null;
-	    this.next = null;
-
-	    // z-order curve value
-	    this.z = null;
-
-	    // previous and next nodes in z-order
-	    this.prevZ = null;
-	    this.nextZ = null;
-
-	    // indicates whether this is a steiner point
-	    this.steiner = false;
-	}
-
-	// return a percentage difference between the polygon area and its triangulation area;
-	// used to verify correctness of triangulation
-	earcut.deviation = function (data, holeIndices, dim, triangles) {
-	    var hasHoles = holeIndices && holeIndices.length;
-	    var outerLen = hasHoles ? holeIndices[0] * dim : data.length;
-
-	    var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim));
-	    if (hasHoles) {
-	        for (var i = 0, len = holeIndices.length; i < len; i++) {
-	            var start = holeIndices[i] * dim;
-	            var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
-	            polygonArea -= Math.abs(signedArea(data, start, end, dim));
-	        }
-	    }
-
-	    var trianglesArea = 0;
-	    for (i = 0; i < triangles.length; i += 3) {
-	        var a = triangles[i] * dim;
-	        var b = triangles[i + 1] * dim;
-	        var c = triangles[i + 2] * dim;
-	        trianglesArea += Math.abs(
-	            (data[a] - data[c]) * (data[b + 1] - data[a + 1]) -
-	            (data[a] - data[b]) * (data[c + 1] - data[a + 1]));
-	    }
-
-	    return polygonArea === 0 && trianglesArea === 0 ? 0 :
-	        Math.abs((trianglesArea - polygonArea) / polygonArea);
-	};
-
-	function signedArea(data, start, end, dim) {
-	    var sum = 0;
-	    for (var i = start, j = end - dim; i < end; i += dim) {
-	        sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
-	        j = i;
-	    }
-	    return sum;
-	}
-
-	// turn a polygon in a multi-dimensional array form (e.g. as in GeoJSON) into a form Earcut accepts
-	earcut.flatten = function (data) {
-	    var dim = data[0][0].length,
-	        result = {vertices: [], holes: [], dimensions: dim},
-	        holeIndex = 0;
-
-	    for (var i = 0; i < data.length; i++) {
-	        for (var j = 0; j < data[i].length; j++) {
-	            for (var d = 0; d < dim; d++) result.vertices.push(data[i][j][d]);
-	        }
-	        if (i > 0) {
-	            holeIndex += data[i - 1].length;
-	            result.holes.push(holeIndex);
-	        }
-	    }
-	    return result;
-	};
-
-
-/***/ }),
-/* 267 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var quadFeature = __webpack_require__(223);
-
-	/**
-	 * Create a new instance of class quadFeature
-	 *
-	 * @class geo.gl.quadFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.quadFeature
-	 * @returns {geo.gl.quadFeature}
-	 */
-	var gl_quadFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof gl_quadFeature)) {
-	    return new gl_quadFeature(arg);
-	  }
-	  quadFeature.call(this, arg);
-
-	  var $ = __webpack_require__(1);
-	  var vgl = __webpack_require__(86);
-	  var object = __webpack_require__(262);
-
-	  object.call(this);
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_modelViewUniform,
-	      m_actor_image, m_actor_color, m_glBuffers = {}, m_imgposbuf,
-	      m_clrposbuf, m_clrModelViewUniform,
-	      m_glCompileTimestamp = vgl.timestamp(),
-	      m_glColorCompileTimestamp = vgl.timestamp(),
-	      m_quads;
-	  var fragmentShaderImageSource = [
-	    'varying highp vec2 iTextureCoord;',
-	    'uniform sampler2D sampler2d;',
-	    'uniform mediump float opacity;',
-	    'uniform highp vec2 crop;',
-	    'void main(void) {',
-	    '  mediump vec4 color = texture2D(sampler2d, iTextureCoord);',
-	    '  if ((crop.s < 1.0 && iTextureCoord.s > crop.s) || (crop.t < 1.0 && 1.0 - iTextureCoord.t > crop.t)) {',
-	    '    discard;',
-	    '  }',
-	    '  color.w *= opacity;',
-	    '  gl_FragColor = color;',
-	    '}'].join('\n');
-	  var vertexShaderImageSource = [
-	    'attribute vec3 vertexPosition;',
-	    'attribute vec2 textureCoord;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying highp vec2 iTextureCoord;',
-	    'void main(void) {',
-	    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    '  iTextureCoord = textureCoord;',
-	    '}'].join('\n');
-	  var vertexShaderColorSource = [
-	    'attribute vec3 vertexPosition;',
-	    'uniform vec3 vertexColor;',
-	    'uniform mat4 modelViewMatrix;',
-	    'uniform mat4 projectionMatrix;',
-	    'varying mediump vec3 iVertexColor;',
-	    'void main(void) {',
-	    '  gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);',
-	    '  iVertexColor = vertexColor;',
-	    '}'].join('\n');
-
-	  /**
-	   * Allocate buffers that we need to control for image quads.  This mimics
-	   * the actions from vgl.mapper to some degree.
-	   *
-	   * @private
-	   */
-	  function setupDrawObjects(renderState) {
-	    var context = renderState.m_context,
-	        newbuf = false;
-
-	    if (m_quads.imgQuads.length) {
-	      if (!m_imgposbuf || m_imgposbuf.length < m_quads.imgQuads.length * 12 ||
-	          !m_glBuffers.imgQuadsPosition) {
-	        if (m_glBuffers.imgQuadsPosition) {
-	          context.deleteBuffer(m_glBuffers.imgQuadsPosition);
-	        }
-	        m_glBuffers.imgQuadsPosition = context.createBuffer();
-	        m_imgposbuf = new Float32Array(Math.max(
-	            128, m_quads.imgQuads.length * 2) * 12);
-	        newbuf = true;
-	      }
-	      $.each(m_quads.imgQuads, function (idx, quad) {
-	        for (var i = 0; i < 12; i += 1) {
-	          m_imgposbuf[idx * 12 + i] = quad.pos[i] - m_quads.origin[i % 3];
-	        }
-	      });
-	      context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.imgQuadsPosition);
-	      if (newbuf) {
-	        context.bufferData(vgl.GL.ARRAY_BUFFER, m_imgposbuf, vgl.GL.DYNAMIC_DRAW);
-	      } else {
-	        context.bufferSubData(vgl.GL.ARRAY_BUFFER, 0, m_imgposbuf);
-	      }
-	    }
-	    m_glCompileTimestamp.modified();
-	  }
-
-	  /**
-	   * Allocate buffers that we need to control for color quads.  This mimics
-	   * the actions from vgl.mapper to some degree.
-	   *
-	   * @private
-	   */
-	  function setupColorDrawObjects(renderState) {
-	    var context = renderState.m_context,
-	        newbuf = false;
-
-	    if (m_quads.clrQuads.length) {
-	      if (!m_clrposbuf || m_clrposbuf.length < m_quads.clrQuads.length * 12 ||
-	          !m_glBuffers.clrQuadsPosition) {
-	        if (m_glBuffers.imgQuadsPosition) {
-	          context.deleteBuffer(m_glBuffers.clrQuadsPosition);
-	        }
-	        m_glBuffers.clrQuadsPosition = context.createBuffer();
-	        m_clrposbuf = new Float32Array(Math.max(
-	            128, m_quads.clrQuads.length * 2) * 12);
-	        newbuf = true;
-	      }
-	      $.each(m_quads.clrQuads, function (idx, quad) {
-	        for (var i = 0; i < 12; i += 1) {
-	          m_clrposbuf[idx * 12 + i] = quad.pos[i] - m_quads.origin[i % 3];
-	        }
-	      });
-	      context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.clrQuadsPosition);
-	      if (newbuf) {
-	        context.bufferData(vgl.GL.ARRAY_BUFFER, m_clrposbuf, vgl.GL.DYNAMIC_DRAW);
-	      } else {
-	        context.bufferSubData(vgl.GL.ARRAY_BUFFER, 0, m_clrposbuf);
-	      }
-	    }
-	    m_glColorCompileTimestamp.modified();
-	  }
-
-	  /**
-	   * Build this feature
-	   */
-	  this._build = function () {
-	    var mapper, mat, prog, srctex, unicrop, geom;
-
-	    if (!m_this.position()) {
-	      return;
-	    }
-	    m_quads = this._generateQuads();
-	    /* Create an actor to render image quads */
-	    if (m_quads.imgQuads.length && !m_actor_image) {
-	      m_this.visible(false);
-	      mapper = new vgl.mapper({dynamicDraw: true});
-	      m_actor_image = new vgl.actor();
-	      /* This is similar to vgl.utils.createTextureMaterial */
-	      m_actor_image.setMapper(mapper);
-	      mat = new vgl.material();
-	      prog = new vgl.shaderProgram();
-	      prog.addVertexAttribute(new vgl.vertexAttribute('vertexPosition'),
-	                              vgl.vertexAttributeKeys.Position);
-	      prog.addVertexAttribute(new vgl.vertexAttribute('textureCoord'),
-	                              vgl.vertexAttributeKeys.TextureCoordinate);
-	      m_modelViewUniform = new vgl.modelViewOriginUniform('modelViewMatrix',
-	        m_quads.origin);
-	      prog.addUniform(m_modelViewUniform);
-	      prog.addUniform(new vgl.projectionUniform('projectionMatrix'));
-	      prog.addUniform(new vgl.floatUniform('opacity', 1.0));
-	      unicrop = new vgl.uniform(vgl.GL.FLOAT_VEC2, 'crop');
-	      unicrop.set([1.0, 1.0]);
-	      prog.addUniform(unicrop);
-	      prog.addShader(vgl.getCachedShader(
-	          vgl.GL.VERTEX_SHADER, vgl.GL, vertexShaderImageSource));
-	      prog.addShader(vgl.getCachedShader(
-	          vgl.GL.FRAGMENT_SHADER, vgl.GL, fragmentShaderImageSource));
-	      mat.addAttribute(prog);
-	      mat.addAttribute(new vgl.blend());
-	      /* This is similar to vgl.planeSource */
-	      geom = new vgl.geometryData();
-	      m_imgposbuf = undefined;
-	      srctex = new vgl.sourceDataT2fv();
-	      srctex.pushBack([0, 0, 1, 0, 0, 1, 1, 1]);
-	      geom.addSource(srctex);
-	      /* We deliberately do not add a primitive to our geometry -- we take care
-	       * of that ourselves. */
-
-	      mapper.setGeometryData(geom);
-	      m_actor_image.setMaterial(mat);
-
-	      mapper.s_render = mapper.render;
-	      mapper.render = m_this._renderImageQuads;
-	      m_this.renderer().contextRenderer().addActor(m_actor_image);
-	      m_this.visible(true);
-	    }
-	    /* Create an actor to render color quads */
-	    if (m_quads.clrQuads.length && !m_actor_color) {
-	      m_this.visible(false);
-	      mapper = new vgl.mapper({dynamicDraw: true});
-	      m_actor_color = new vgl.actor();
-	      /* This is similar to vgl.utils.createTextureMaterial */
-	      m_actor_color.setMapper(mapper);
-	      mat = new vgl.material();
-	      prog = new vgl.shaderProgram();
-	      prog.addVertexAttribute(new vgl.vertexAttribute('vertexPosition'),
-	                              vgl.vertexAttributeKeys.Position);
-	      m_clrModelViewUniform = new vgl.modelViewOriginUniform('modelViewMatrix',
-	        m_quads.origin);
-	      prog.addUniform(m_clrModelViewUniform);
-	      prog.addUniform(new vgl.projectionUniform('projectionMatrix'));
-	      prog.addUniform(new vgl.floatUniform('opacity', 1.0));
-	      prog.addUniform(new vgl.uniform(vgl.GL.FLOAT_VEC3, 'vertexColor'));
-	      prog.addShader(vgl.getCachedShader(
-	          vgl.GL.VERTEX_SHADER, vgl.GL, vertexShaderColorSource));
-	      prog.addShader(vgl.utils.createFragmentShader(vgl.GL));
-	      mat.addAttribute(prog);
-	      mat.addAttribute(new vgl.blend());
-	      /* This is similar to vgl.planeSource */
-	      geom = new vgl.geometryData();
-	      m_clrposbuf = undefined;
-	      /* We deliberately do not add a primitive to our geometry -- we take care
-	       * of that ourselves. */
-
-	      mapper.setGeometryData(geom);
-	      m_actor_color.setMaterial(mat);
-
-	      mapper.s_render = mapper.render;
-	      mapper.render = m_this._renderColorQuads;
-	      m_this.renderer().contextRenderer().addActor(m_actor_color);
-	      m_this.visible(true);
-	    }
-	    if (m_modelViewUniform) {
-	      m_modelViewUniform.setOrigin(m_quads.origin);
-	    }
-	    if (m_clrModelViewUniform) {
-	      m_clrModelViewUniform.setOrigin(m_quads.origin);
-	    }
-	    m_this._updateTextures();
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Check all of the image quads.  If any do not have the correct texture,
-	   * update them. */
-	  this._updateTextures = function () {
-	    var texture;
-
-	    $.each(m_quads.imgQuads, function (idx, quad) {
-	      if (!quad.image) {
-	        return;
-	      }
-	      if (quad.image._texture) {
-	        quad.texture = quad.image._texture;
-	      } else {
-	        texture = new vgl.texture();
-	        texture.setImage(quad.image);
-	        quad.texture = quad.image._texture = texture;
-	      }
-	    });
-	  };
-
-	  /**
-	   * Render all of the color quads using a single mapper.
-	   *
-	   * @param renderState: the render state used for the render.
-	   */
-	  this._renderColorQuads = function (renderState) {
-	    if (!m_quads.clrQuads.length) {
-	      return;
-	    }
-	    var mapper = this;
-	    if (mapper.getMTime() > m_glColorCompileTimestamp.getMTime() ||
-	        m_this.dataTime().getMTime() > m_glColorCompileTimestamp.getMTime() ||
-	        renderState.m_contextChanged || !m_clrposbuf ||
-	        m_quads.clrQuads.length * 12 > m_clrposbuf.length) {
-	      setupColorDrawObjects(renderState);
-	    }
-	    mapper.s_render(renderState, true);
-
-	    var context = renderState.m_context, opacity = 1, color;
-
-	    context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.clrQuadsPosition);
-	    $.each(m_quads.clrQuads, function (idx, quad) {
-	      if (quad.opacity !== opacity) {
-	        opacity = quad.opacity;
-	        context.uniform1fv(renderState.m_material.shaderProgram(
-	            ).uniformLocation('opacity'), new Float32Array([opacity]));
-	      }
-	      if (!color || color.r !== quad.color.r || color.g !== quad.color.g ||
-	          color.b !== quad.color.b) {
-	        color = quad.color;
-	        context.uniform3fv(renderState.m_material.shaderProgram(
-	            ).uniformLocation('vertexColor'), new Float32Array([
-	              color.r, color.g, color.b]));
-	      }
-
-	      context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.clrQuadsPosition);
-	      context.vertexAttribPointer(vgl.vertexAttributeKeys.Position, 3,
-	                                  vgl.GL.FLOAT, false, 12, idx * 12 * 4);
-	      context.enableVertexAttribArray(vgl.vertexAttributeKeys.Position);
-
-	      context.drawArrays(vgl.GL.TRIANGLE_STRIP, 0, 4);
-	    });
-	    context.bindBuffer(vgl.GL.ARRAY_BUFFER, null);
-	    mapper.undoBindVertexData(renderState);
-	  };
-
-	  /**
-	   * Render all of the image quads using a single mapper.
-	   *
-	   * @param renderState: the render state used for the render.
-	   */
-	  this._renderImageQuads = function (renderState) {
-	    if (!m_quads.imgQuads.length) {
-	      return;
-	    }
-	    var mapper = this;
-	    if (mapper.getMTime() > m_glCompileTimestamp.getMTime() ||
-	        m_this.dataTime().getMTime() > m_glCompileTimestamp.getMTime() ||
-	        renderState.m_contextChanged || !m_imgposbuf ||
-	        m_quads.imgQuads.length * 12 > m_imgposbuf.length) {
-	      setupDrawObjects(renderState);
-	    }
-	    mapper.s_render(renderState, true);
-
-	    var context = renderState.m_context,
-	        opacity = 1,
-	        crop = {x: 1, y: 1}, quadcrop;
-
-	    context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.imgQuadsPosition);
-	    $.each(m_quads.imgQuads, function (idx, quad) {
-	      if (!quad.image) {
-	        return;
-	      }
-	      quad.texture.bind(renderState);
-
-	      if (quad.opacity !== opacity) {
-	        opacity = quad.opacity;
-	        context.uniform1fv(renderState.m_material.shaderProgram(
-	            ).uniformLocation('opacity'), new Float32Array([opacity]));
-	      }
-	      quadcrop = quad.crop || {x: 1, y: 1};
-	      if (!crop || quadcrop.x !== crop.x || quadcrop.y !== crop.y) {
-	        crop = quadcrop;
-	        context.uniform2fv(renderState.m_material.shaderProgram(
-	            ).uniformLocation('crop'), new Float32Array([crop.x, crop.y]));
-	      }
-	      context.bindBuffer(vgl.GL.ARRAY_BUFFER, m_glBuffers.imgQuadsPosition);
-	      context.vertexAttribPointer(vgl.vertexAttributeKeys.Position, 3,
-	                                  vgl.GL.FLOAT, false, 12, idx * 12 * 4);
-	      context.enableVertexAttribArray(vgl.vertexAttributeKeys.Position);
-
-	      context.drawArrays(vgl.GL.TRIANGLE_STRIP, 0, 4);
-	      quad.texture.undoBind(renderState);
-	    });
-	    context.bindBuffer(vgl.GL.ARRAY_BUFFER, null);
-	    mapper.undoBindVertexData(renderState);
-	  };
-
-	  /**
-	   * Update
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.buildTime().getMTime() <= m_this.dataTime().getMTime() ||
-	        m_this.updateTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-	    if (m_actor_color) {
-	      m_actor_color.setVisible(m_this.visible(undefined, true));
-	      m_actor_color.material().setBinNumber(m_this.bin());
-	    }
-	    if (m_actor_image) {
-	      m_actor_image.setVisible(m_this.visible(undefined, true));
-	      m_actor_image.material().setBinNumber(m_this.bin());
-	    }
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    s_init.call(m_this, arg);
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-	    if (m_actor_image) {
-	      m_this.renderer().contextRenderer().removeActor(m_actor_image);
-	      m_actor_image = null;
-	    }
-	    if (m_actor_color) {
-	      m_this.renderer().contextRenderer().removeActor(m_actor_color);
-	      m_actor_color = null;
-	    }
-	    s_exit.call(m_this);
-	  };
-
-	  m_this._init(arg);
-	  return this;
-	};
-
-	inherit(gl_quadFeature, quadFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[quadFeature.capabilities.color] = true;
-	capabilities[quadFeature.capabilities.image] = true;
-	capabilities[quadFeature.capabilities.imageCrop] = true;
-	capabilities[quadFeature.capabilities.imageFixedScale] = false;
-	capabilities[quadFeature.capabilities.imageFull] = true;
-	capabilities[quadFeature.capabilities.canvas] = false;
-
-	registerFeature('vgl', 'quad', gl_quadFeature, capabilities);
-	module.exports = gl_quadFeature;
-
-
-/***/ }),
-/* 268 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var registerLayerAdjustment = __webpack_require__(201).registerLayerAdjustment;
-
-	var gl_tileLayer = function () {
-	  'use strict';
-	  var m_this = this,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      m_quadFeature,
-	      m_nextTileId = 0,
-	      m_tiles = [];
-
-	  /* Add a tile to the list of quads */
-	  this._drawTile = function (tile) {
-	    if (!m_quadFeature) {
-	      return;
-	    }
-	    var bounds = this._tileBounds(tile),
-	        level = tile.index.level || 0,
-	        to = this._tileOffset(level),
-	        crop = this.tileCropFromBounds(tile),
-	        quad = {};
-	    if (crop) {
-	      quad.crop = {
-	        x: crop.x / m_this._options.tileWidth,
-	        y: crop.y / m_this._options.tileHeight
-	      };
-	    }
-	    quad.ul = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.ll = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ur = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.lr = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ul.z = quad.ll.z = quad.ur.z = quad.lr.z = level * 1e-5;
-	    m_nextTileId += 1;
-	    quad.id = m_nextTileId;
-	    tile.quadId = quad.id;
-	    quad.image = tile.image;
-	    m_tiles.push(quad);
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	    m_this.draw();
-	  };
-
-	  /* Remove the tile feature. */
-	  this._remove = function (tile) {
-	    if (tile.quadId !== undefined && m_quadFeature) {
-	      for (var i = 0; i < m_tiles.length; i += 1) {
-	        if (m_tiles[i].id === tile.quadId) {
-	          m_tiles.splice(i, 1);
-	          break;
-	        }
-	      }
-	      m_quadFeature.data(m_tiles);
-	      m_quadFeature._update();
-	      m_this.draw();
-	    }
-	  };
-
-	  /**
-	   * Clean up the layer.
-	   */
-	  this._exit = function () {
-	    m_this.deleteFeature(m_quadFeature);
-	    m_quadFeature = null;
-	    m_tiles = [];
-	    s_exit.apply(m_this, arguments);
-	  };
-
-	  /**
-	   * Initialize after the layer is added to the map.
-	   */
-	  this._init = function () {
-	    s_init.apply(m_this, arguments);
-	    m_quadFeature = this.createFeature('quad', {
-	      previewColor: m_this._options.previewColor,
-	      previewImage: m_this._options.previewImage
-	    });
-	    m_quadFeature.geoTrigger = undefined;
-	    m_quadFeature.gcs(m_this._options.gcs || m_this.map().gcs());
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	  };
-
-	  /* These functions don't need to do anything. */
-	  this._getSubLayer = function () {};
-	  this._updateSubLayers = undefined;
-	};
-
-	registerLayerAdjustment('vgl', 'tile', gl_tileLayer);
-
-	module.exports = gl_tileLayer;
-
-
-/***/ }),
-/* 269 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/**
-	 * @namespace geo.canvas
-	 */
-	module.exports = {
-	  canvasRenderer: __webpack_require__(270),
-	  heatmapFeature: __webpack_require__(271),
-	  lineFeature: __webpack_require__(273),
-	  pixelmapFeature: __webpack_require__(274),
-	  quadFeature: __webpack_require__(275),
-	  textFeature: __webpack_require__(276),
-	  tileLayer: __webpack_require__(296)
-	};
-
-
-/***/ }),
-/* 270 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerRenderer = __webpack_require__(201).registerRenderer;
-	var renderer = __webpack_require__(202);
-
-	/**
-	 * Create a new instance of class canvasRenderer
-	 *
-	 * @class geo.canvas.renderer
-	 * @extends geo.renderer
-	 * @param canvas
-	 * @returns {geo.canvas.canvasRenderer}
-	 */
-	var canvasRenderer = function (arg) {
-	  'use strict';
-
-	  var $ = __webpack_require__(1);
-
-	  if (!(this instanceof canvasRenderer)) {
-	    return new canvasRenderer(arg);
-	  }
-	  arg = arg || {};
-	  renderer.call(this, arg);
-
-	  var m_this = this,
-	      m_clearCanvas = true,
-	      s_init = this._init,
-	      s_exit = this._exit;
-
-	  this.clearCanvas = function (arg) {
-	    m_clearCanvas = arg;
-	  };
-
-	  /**
-	   * Get API used by the renderer
-	   */
-	  this.api = function () {
-	    return 'canvas';
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    if (m_this.initialized()) {
-	      return m_this;
-	    }
-
-	    s_init.call(m_this);
-
-	    var canvas = $(document.createElement('canvas'));
-	    m_this.context2d = canvas[0].getContext('2d');
-
-	    canvas.addClass('canvas-canvas');
-	    $(m_this.layer().node().get(0)).append(canvas);
-
-	    m_this.canvas(canvas);
-	    /* Initialize the size of the renderer */
-	    var map = m_this.layer().map(),
-	        mapSize = map.size();
-	    m_this._resize(0, 0, mapSize.width, mapSize.height);
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Handle resize event
-	   */
-	  this._resize = function (x, y, w, h) {
-	    m_this.canvas().attr('width', w);
-	    m_this.canvas().attr('height', h);
-	    m_this._render();
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Render
-	   */
-	  this._render = function () {
-	    m_this.layer().map().scheduleAnimationFrame(this._renderFrame);
-	    return m_this;
-	  };
-
-	  /**
-	   * Render during an animation frame callback.
-	   */
-	  this._renderFrame = function () {
-	    var layer = m_this.layer(),
-	        map = layer.map(),
-	        camera = map.camera(),
-	        viewport = camera._viewport;
-
-	    // Clear the canvas.
-	    if (m_clearCanvas) {
-	      m_this.context2d.setTransform(1, 0, 0, 1, 0, 0);
-	      m_this.context2d.clearRect(0, 0, viewport.width, viewport.height);
-	    }
-
-	    var features = layer.features();
-	    for (var i = 0; i < features.length; i += 1) {
-	      if (features[i].visible()) {
-	        features[i]._renderOnCanvas(m_this.context2d, map);
-	      }
-	    }
-	  };
-
-	  /**
-	   * Exit
-	   */
-	  this._exit = function () {
-	    m_this.canvas().remove();
-	    s_exit();
-	  };
-
-	  return this;
-	};
-
-	inherit(canvasRenderer, renderer);
-
-	registerRenderer('canvas', canvasRenderer);
-
-	(function () {
-	  'use strict';
-
-	  var checkedCanvas;
-
-	  /**
-	   * Report if the canvas renderer is supported.
-	   *
-	   * @returns {boolean} true if available.
-	   */
-	  canvasRenderer.supported = function () {
-	    if (checkedCanvas === undefined) {
-	      /* This is extracted from what Modernizr uses. */
-	      var canvas; // eslint-disable-line no-unused-vars
-	      try {
-	        canvas = document.createElement('canvas');
-	        checkedCanvas = !!(canvas.getContext && canvas.getContext('2d'));
-	      } catch (e) {
-	        checkedCanvas = false;
-	      }
-	      canvas = undefined;
-	    }
-	    return checkedCanvas;
-	  };
-
-	  /**
-	   * If the canvas renderer is not supported, supply the name of a renderer that
-	   * should be used instead.  This asks for the null renderer.
-	   *
-	   * @returns null for the null renderer.
-	   */
-	  canvasRenderer.fallback = function () {
-	    return null;
-	  };
-	})();
-
-	module.exports = canvasRenderer;
-
-
-/***/ }),
-/* 271 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var heatmapFeature = __webpack_require__(232);
-	var timestamp = __webpack_require__(209);
-
-	/**
-	 * Create a new instance of class heatmapFeature
-	 * Inspired from
-	 *    https://github.com/mourner/simpleheat/blob/gh-pages/simpleheat.js
-	 *
-	 * @class geo.canvas.heatmapFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.heatmapFeature
-	 * @returns {canvas_heatmapFeature}
-	 */
-	var canvas_heatmapFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof canvas_heatmapFeature)) {
-	    return new canvas_heatmapFeature(arg);
-	  }
-	  heatmapFeature.call(this, arg);
-	  var object = __webpack_require__(272);
-
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var geo_event = __webpack_require__(9);
-
-	  var m_this = this,
-	      m_typedBuffer,
-	      m_typedClampedBuffer,
-	      m_typedBufferData,
-	      m_heatMapPosition,
-	      m_heatMapTransform,
-	      s_exit = this._exit,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_renderTime = timestamp();
-
-	  /**
-	   * Meta functions for converting from geojs styles to canvas.
-	   * @private
-	   */
-	  this._convertColor = function (c) {
-	    var color;
-	    if (c.hasOwnProperty('r') &&
-	      c.hasOwnProperty('g') &&
-	      c.hasOwnProperty('b') &&
-	      c.hasOwnProperty('a')) {
-	      color = 'rgba(' + 255 * c.r + ',' + 255 * c.g + ','
-	                    + 255 * c.b + ',' + c.a + ')';
-	    }
-	    return color;
-	  };
-
-	  /**
-	   * Compute gradient (color lookup table)
-	   * @protected
-	   */
-	  this._computeGradient = function () {
-	    var canvas, stop, context2d, gradient, colors;
-
-	    colors = m_this.style('color');
-	    if (!m_this._grad || m_this._gradColors !== colors) {
-	      canvas = document.createElement('canvas');
-	      context2d = canvas.getContext('2d');
-	      gradient = context2d.createLinearGradient(0, 0, 0, 256);
-
-	      canvas.width = 1;
-	      canvas.height = 256;
-
-	      for (stop in colors) {
-	        gradient.addColorStop(stop, m_this._convertColor(colors[stop]));
-	      }
-
-	      context2d.fillStyle = gradient;
-	      context2d.fillRect(0, 0, 1, 256);
-	      m_this._grad = context2d.getImageData(0, 0, 1, 256).data;
-	      m_this._gradColors = colors;
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Create circle for each data point
-	   * @protected
-	   */
-	  this._createCircle = function () {
-	    var circle, ctx, r, r2, blur, gaussian;
-	    r = m_this.style('radius');
-	    blur = m_this.style('blurRadius');
-	    gaussian = m_this.style('gaussian');
-	    if (!m_this._circle || m_this._circle.gaussian !== gaussian ||
-	        m_this._circle.radius !== r || m_this._circle.blurRadius !== blur) {
-	      circle = m_this._circle = document.createElement('canvas');
-	      ctx = circle.getContext('2d');
-	      r2 = blur + r;
-	      circle.width = circle.height = r2 * 2;
-	      if (!gaussian) {
-	        ctx.shadowOffsetX = ctx.shadowOffsetY = r2 * 2;
-	        ctx.shadowBlur = blur;
-	        ctx.shadowColor = 'black';
-	        ctx.beginPath();
-	        ctx.arc(-r2, -r2, r, 0, Math.PI * 2, true);
-	        ctx.closePath();
-	        ctx.fill();
-	      } else {
-	        /* This approximates a gaussian distribution by using a 10-step
-	         * piecewise linear radial gradient.  Strictly, it should not stop at
-	         * the radius, but should be attenuated further.  The scale has been
-	         * selected such that the values at the radius are around 1/256th of
-	         * the maximum, and therefore would not be visible using an 8-bit alpha
-	         * channel for the summation.  The values for opacity were generated by
-	         * the python expression:
-	         *   from scipy.stats import norm
-	         *   for r in [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1]:
-	         *     opacity = norm.pdf(r, scale=0.3) / norm.pdf(0, scale=0.3)
-	         * Usng a 10-interval approximation is accurate to within 0.5% of the
-	         * actual Gaussian magnitude.  Switching to a 20-interval approximation
-	         * would get within 0.1%, at which point there is more error from using
-	         * a Gaussian truncated at the radius than from the approximation.
-	         */
-	        var grad = ctx.createRadialGradient(r2, r2, 0, r2, r2, r2);
-	        grad.addColorStop(0.0, 'rgba(255,255,255,1)');
-	        grad.addColorStop(0.1, 'rgba(255,255,255,0.946)');
-	        grad.addColorStop(0.2, 'rgba(255,255,255,0.801)');
-	        grad.addColorStop(0.3, 'rgba(255,255,255,0.607)');
-	        grad.addColorStop(0.4, 'rgba(255,255,255,0.411)');
-	        grad.addColorStop(0.5, 'rgba(255,255,255,0.249)');
-	        grad.addColorStop(0.6, 'rgba(255,255,255,0.135)');
-	        grad.addColorStop(0.7, 'rgba(255,255,255,0.066)');
-	        grad.addColorStop(0.8, 'rgba(255,255,255,0.029)');
-	        grad.addColorStop(0.9, 'rgba(255,255,255,0.011)');
-	        grad.addColorStop(1.0, 'rgba(255,255,255,0)');
-	        ctx.fillStyle = grad;
-	        ctx.fillRect(0, 0, r2 * 2, r2 * 2);
-	      }
-	      circle.radius = r;
-	      circle.blurRadius = blur;
-	      circle.gaussian = gaussian;
-	      m_this._circle = circle;
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   * Compute color for each pixel on the screen
-	   * @protected
-	   */
-	  this._colorize = function (pixels, gradient) {
-	    var grad = new Uint32Array(gradient.buffer),
-	        pixlen = pixels.length,
-	        i, j, k;
-	    if (!m_typedBuffer || m_typedBuffer.length !== pixlen) {
-	      m_typedBuffer = new ArrayBuffer(pixlen);
-	      m_typedClampedBuffer = new Uint8ClampedArray(m_typedBuffer);
-	      m_typedBufferData = new Uint32Array(m_typedBuffer);
-	    }
-	    for (i = 3, k = 0; i < pixlen; i += 4, k += 1) {
-	      // Get opacity from the temporary canvas image and look up the final
-	      // value from gradient
-	      j = pixels[i];
-	      if (j) {
-	        m_typedBufferData[k] = grad[j];
-	      }
-	    }
-	    pixels.set(m_typedClampedBuffer);
-	  };
-
-	  /**
-	   * Render individual data points on the canvas.
-	   * @protected
-	   * @param {object} context2d the canvas context to draw in.
-	   * @param {object} map the parent map object.
-	   * @param {Array} data the main data array.
-	   * @param {number} radius the sum of radius and blurRadius.
-	   */
-	  this._renderPoints = function (context2d, map, data, radius) {
-	    var position = m_this.gcsPosition(),
-	        intensityFunc = m_this.intensity(),
-	        minIntensity = m_this.minIntensity(),
-	        rangeIntensity = (m_this.maxIntensity() - minIntensity) || 1,
-	        idx, pos, intensity;
-
-	    for (idx = data.length - 1; idx >= 0; idx -= 1) {
-	      pos = map.worldToDisplay(position[idx]);
-	      intensity = (intensityFunc(data[idx]) - minIntensity) / rangeIntensity;
-	      if (intensity <= 0) {
-	        continue;
-	      }
-	      // Small values are not visible because globalAlpha < .01
-	      // cannot be read from imageData
-	      context2d.globalAlpha = intensity < 0.01 ? 0.01 : (intensity > 1 ? 1 : intensity);
-	      context2d.drawImage(m_this._circle, pos.x - radius, pos.y - radius);
-	    }
-	  };
-
-	  /**
-	   * Render data points on the canvas by binning.
-	   * @protected
-	   * @param {object} context2d the canvas context to draw in.
-	   * @param {object} map the parent map object.
-	   * @param {Array} data the main data array.
-	   * @param {number} radius the sum of radius and blurRadius.
-	   * @param {number} binSize size of the bins in pixels.
-	   */
-	  this._renderBinnedData = function (context2d, map, data, radius, binSize) {
-	    var position = m_this.gcsPosition(),
-	        intensityFunc = m_this.intensity(),
-	        minIntensity = m_this.minIntensity(),
-	        rangeIntensity = (m_this.maxIntensity() - minIntensity) || 1,
-	        viewport = map.camera()._viewport,
-	        bins = [],
-	        rw = Math.ceil(radius / binSize),
-	        maxx = Math.ceil(viewport.width / binSize) + rw * 2 + 2,
-	        maxy = Math.ceil(viewport.height / binSize) + rw * 2 + 2,
-	        datalen = data.length,
-	        idx, pos, intensity, x, y, binrow, offsetx, offsety;
-
-	    /* We create bins of size (binSize) pixels on a side.  We only track bins
-	     * that are on the viewport or within the radius of it, plus one extra bin
-	     * width. */
-	    for (idx = 0; idx < datalen; idx += 1) {
-	      pos = map.worldToDisplay(position[idx]);
-	      /* To make the results look more stable, we use the first data point as a
-	       * hard-reference to where the bins should line up.  Otherwise, as we pan
-	       * points would shift which bin they are in and the display would ripple
-	       * oddly. */
-	      if (isNaN(pos.x) || isNaN(pos.y)) {
-	        continue;
-	      }
-	      if (offsetx === undefined) {
-	        offsetx = ((pos.x % binSize) + binSize) % binSize;
-	        offsety = ((pos.y % binSize) + binSize) % binSize;
-	      }
-	      /* We handle points that are in the viewport, plus the radius on either
-	       * side, as they will add into the visual effect, plus one additional bin
-	       * to account for the offset alignment. */
-	      x = Math.floor((pos.x - offsetx) / binSize) + rw + 1;
-	      if (x < 0 || x >= maxx) {
-	        continue;
-	      }
-	      y = Math.floor((pos.y - offsety) / binSize) + rw + 1;
-	      if (y < 0 || y >= maxy) {
-	        continue;
-	      }
-	      intensity = (intensityFunc(data[idx]) - minIntensity) / rangeIntensity;
-	      if (intensity <= 0) {
-	        continue;
-	      }
-	      if (intensity > 1) {
-	        intensity = 1;
-	      }
-	      /* bins is an array of arrays.  The subarrays would be conceptually
-	       * better represented as an array of dicts, but having a sparse array is
-	       * uses much less memory and is faster.  Each bin uses four array entries
-	       * that are (weight, intensity, x, y).  The weight is the sum of the
-	       * intensities for all points in the bin.  The intensity is the geometric
-	       * sum of the intensities to approximate what happens to the unbinned
-	       * data on the alpha channel of the canvas.  The x and y coordinates are
-	       * weighted by the intensity of each point. */
-	      bins[y] = bins[y] || [];
-	      x *= 4;
-	      binrow = bins[y];
-	      if (!binrow[x]) {
-	        binrow[x] = binrow[x + 1] = intensity;
-	        binrow[x + 2] = pos.x * intensity;
-	        binrow[x + 3] = pos.y * intensity;
-	      } else {
-	        binrow[x] += intensity;  // weight
-	        binrow[x + 1] += (1 - binrow[x + 1]) * intensity;
-	        binrow[x + 2] += pos.x * intensity;
-	        binrow[x + 3] += pos.y * intensity;
-	      }
-	    }
-	    /* For each bin, render a point on the canvas. */
-	    for (y = bins.length - 1; y >= 0; y -= 1) {
-	      binrow = bins[y];
-	      if (binrow) {
-	        for (x = binrow.length - 4; x >= 0; x -= 4) {
-	          if (binrow[x]) {
-	            intensity = binrow[x + 1];
-	            context2d.globalAlpha = intensity < 0.01 ? 0.01 : (intensity > 1 ? 1 : intensity);
-	            /* The position is eighted by the intensities, so we have to divide
-	             * it to get the necessary position */
-	            context2d.drawImage(
-	              m_this._circle,
-	              binrow[x + 2] / binrow[x] - radius,
-	              binrow[x + 3] / binrow[x] - radius);
-	          }
-	        }
-	      }
-	    }
-	  };
-
-	  /**
-	   * Render the data on the canvas, then colorize the resulting opacity map.
-	   * @protected
-	   * @param {object} context2d the canvas context to draw in.
-	   * @param {object} map the parent map object.
-	   */
-	  this._renderOnCanvas = function (context2d, map) {
-
-	    if (m_renderTime.getMTime() < m_this.buildTime().getMTime()) {
-	      var data = m_this.data() || [],
-	          radius = m_this.style('radius') + m_this.style('blurRadius'),
-	          binned = m_this.binned(),
-	          canvas, pixelArray,
-	          layer = m_this.layer(),
-	          viewport = map.camera()._viewport;
-
-	      /* Determine if we should bin the data */
-	      if (binned === true || binned === 'auto') {
-	        binned = Math.max(Math.floor(radius / 8), 3);
-	        if (m_this.binned() === 'auto') {
-	          var numbins = (Math.ceil((viewport.width + radius * 2) / binned) *
-	                         Math.ceil((viewport.height + radius * 2) / binned));
-	          if (numbins >= data.length) {
-	            binned = 0;
-	          }
-	        }
-	      }
-	      if (binned < 1 || isNaN(binned)) {
-	        binned = false;
-	      }
-	      /* Store what we did, in case this is ever useful elsewhere */
-	      m_this._binned = binned;
-
-	      context2d.setTransform(1, 0, 0, 1, 0, 0);
-	      context2d.clearRect(0, 0, viewport.width, viewport.height);
-	      m_heatMapTransform = '';
-	      map.scheduleAnimationFrame(m_this._setTransform, false);
-	      layer.canvas().css({transform: ''});
-
-	      m_this._createCircle();
-	      m_this._computeGradient();
-	      if (!binned) {
-	        m_this._renderPoints(context2d, map, data, radius);
-	      } else {
-	        m_this._renderBinnedData(context2d, map, data, radius, binned);
-	      }
-	      canvas = layer.canvas()[0];
-	      pixelArray = context2d.getImageData(0, 0, canvas.width, canvas.height);
-	      m_this._colorize(pixelArray.data, m_this._grad);
-	      context2d.putImageData(pixelArray, 0, 0);
-
-	      m_heatMapPosition = {
-	        zoom: map.zoom(),
-	        gcsOrigin: map.displayToGcs({x: 0, y: 0}, null),
-	        rotation: map.rotation(),
-	        lastScale: undefined,
-	        lastOrigin: {x: 0, y: 0},
-	        lastRotation: undefined
-	      };
-	      m_renderTime.modified();
-	      layer.renderer().clearCanvas(false);
-	    }
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Initialize
-	   * @protected
-	   */
-	  this._init = function () {
-	    s_init.call(m_this, arg);
-
-	    m_this.geoOn(geo_event.pan, m_this._animatePan);
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Update
-	   * @protected
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.buildTime().getMTime() <= m_this.dataTime().getMTime() ||
-	        m_this.updateTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-	    m_this.updateTime().modified();
-	    return m_this;
-	  };
-
-	  /**
-	   * Update the css transform for the layer as part of an animation frame.
-	   * @protected
-	   */
-	  this._setTransform = function () {
-	    m_this.layer().canvas()[0].style.transform = m_heatMapTransform;
-	  };
-
-	  /**
-	   * Animate pan (and zoom)
-	   * @protected
-	   */
-	  this._animatePan = function (e) {
-
-	    var map = m_this.layer().map(),
-	        zoom = map.zoom(),
-	        scale = Math.pow(2, (zoom - m_heatMapPosition.zoom)),
-	        origin = map.gcsToDisplay(m_heatMapPosition.gcsOrigin, null),
-	        rotation = map.rotation();
-
-	    if (m_heatMapPosition.lastScale === scale &&
-	        m_heatMapPosition.lastOrigin.x === origin.x &&
-	        m_heatMapPosition.lastOrigin.y === origin.y &&
-	        m_heatMapPosition.lastRotation === rotation) {
-	      return;
-	    }
-
-	    var transform = '' +
-	        ' translate(' + origin.x + 'px' + ',' + origin.y + 'px' + ')' +
-	        ' scale(' + scale + ')' +
-	        ' rotate(' + ((rotation - m_heatMapPosition.rotation) * 180 / Math.PI) + 'deg)';
-
-	    map.scheduleAnimationFrame(m_this._setTransform);
-
-	    m_heatMapTransform = transform;
-	    m_heatMapPosition.lastScale = scale;
-	    m_heatMapPosition.lastOrigin.x = origin.x;
-	    m_heatMapPosition.lastOrigin.y = origin.y;
-	    m_heatMapPosition.lastRotation = rotation;
-
-	    if (m_heatMapPosition.timeout) {
-	      window.clearTimeout(m_heatMapPosition.timeout);
-	      m_heatMapPosition.timeout = undefined;
-	    }
-	    /* This conditional can change if we compute the heatmap beyond the visable
-	     * viewport so that we don't have to update on pans as often.  If we are
-	     * close to where the heatmap was originally computed, don't bother
-	     * updating it. */
-	    if (parseFloat(scale.toFixed(4)) !== 1 ||
-	        parseFloat((rotation - m_heatMapPosition.rotation).toFixed(4)) !== 0 ||
-	        parseFloat(origin.x.toFixed(1)) !== 0 ||
-	        parseFloat(origin.y.toFixed(1)) !== 0) {
-	      m_heatMapPosition.timeout = window.setTimeout(function () {
-	        m_heatMapPosition.timeout = undefined;
-	        m_this.buildTime().modified();
-	        m_this.layer().draw();
-	      }, m_this.updateDelay());
-	    }
-	  };
-
-	  /**
-	   * Destroy
-	   * @protected
-	   */
-	  this._exit = function () {
-	    s_exit.call(m_this);
-	  };
-
-	  m_this._init(arg);
-	  return this;
-	};
-
-	inherit(canvas_heatmapFeature, heatmapFeature);
-
-	// Now register it
-	registerFeature('canvas', 'heatmap', canvas_heatmapFeature);
-	module.exports = canvas_heatmapFeature;
-
-
-/***/ }),
-/* 272 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-
-	/**
-	 * Canvas specific subclass of object which rerenders when the object is drawn.
-	 * @class
-	 * @alias geo.canvas.object
-	 * @extends geo.sceneObject
-	 */
-
-	var canvas_object = function (arg) {
-	  'use strict';
-
-	  var object = __webpack_require__(203);
-
-	  // this is used to extend other geojs classes, so only generate
-	  // a new object when that is not the case... like if this === window
-	  if (!(this instanceof object)) {
-	    return new canvas_object(arg);
-	  }
-	  sceneObject.call(this);
-
-	  var m_this = this,
-	      s_draw = this.draw,
-	      m_canvasProperties = {};
-
-	  /**
-	   * This must be overridden by any feature that needs to render.
-	   */
-	  this._renderOnCanvas = function () {
-	  };
-
-	  /**
-	   * Check if a property has already been set on a canvas's context.  If so,
-	   * don't set it again.  Some browsers are much slower if the properties are
-	   * set, even if no change is made.
-	   *
-	   * @param {CanvasRenderingContext2D} [context] The canvas context to modify.
-	   *    If `undefined`, clear the internal property buffer.
-	   * @param {string} [key] The property to set on the canvas.
-	   * @param {object} [value] The value for the property.
-	   * @returns {this} The current object.
-	   */
-	  this._canvasProperty = function (context, key, value) {
-	    if (!context || !key) {
-	      m_canvasProperties = {};
-	      return m_this;
-	    }
-	    if (m_canvasProperties[key] !== value) {
-	      m_canvasProperties[key] = value;
-	      context[key] = value;
-	    }
-	    return m_this;
-	  };
-
-	  /**
-	   *  Redraw the object.
-	   *
-	   * @returns {this} The current object.
-	   */
-	  this.draw = function () {
-	    m_this._update();
-	    m_this.renderer()._render();
-	    s_draw();
-	    return m_this;
-	  };
-
-	  return this;
-	};
-
-	inherit(canvas_object, sceneObject);
-	module.exports = canvas_object;
-
-
-/***/ }),
-/* 273 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var lineFeature = __webpack_require__(206);
-
-	/**
-	 * Create a new instance of class lineFeature
-	 *
-	 * @class geo.canvas.lineFeature
-	 * @extends geo.lineFeature
-	 * @extends geo.canvas.object
-	 * @returns {geo.canvas.lineFeature}
-	 */
-	var canvas_lineFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof canvas_lineFeature)) {
-	    return new canvas_lineFeature(arg);
-	  }
-
-	  var object = __webpack_require__(272);
-
-	  arg = arg || {};
-	  lineFeature.call(this, arg);
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this;
-
-	  /**
-	   * Render the data on the canvas.
-	   * @protected
-	   * @param {object} context2d the canvas context to draw in.
-	   * @param {object} map the parent map object.
-	   */
-	  this._renderOnCanvas = function (context2d, map) {
-	    var data = m_this.data(),
-	        posFunc = m_this.position(),
-	        lineFunc = m_this.line(),
-	        strokeWidthFunc = m_this.style.get('strokeWidth'),
-	        strokeColorFunc = m_this.style.get('strokeColor'),
-	        strokeOpacityFunc = m_this.style.get('strokeOpacity'),
-	        lineCapFunc = m_this.style.get('lineCap'),
-	        lineJoinFunc = m_this.style.get('lineJoin'),
-	        miterLimit = m_this.style.get('miterLimit')(data),
-	        closedFunc = m_this.style.get('closed'),
-	        last = {}, cur = {}, temp, line, pos, firstPos, j;
-
-	    data.forEach(function (d, i) {
-	      line = lineFunc(d, i);
-	      if (line.length < 2) {
-	        return;
-	      }
-	      cur.closed = closedFunc(d, i);
-	      cur.width = strokeWidthFunc(line[0], 0, d, i);
-	      cur.color = strokeColorFunc(line[0], 0, d, i);
-	      cur.opacity = strokeOpacityFunc(line[0], 0, d, i);
-	      cur.linecap = lineCapFunc(line[0], 0, d, i);
-	      cur.linejoin = lineJoinFunc(line[0], 0, d, i);
-	      cur.strokeStyle = 'rgba(' + (cur.color.g * 255) + ', ' +
-	          (cur.color.g * 255) + ', ' + (cur.color.b * 255) + ', ' +
-	          (cur.opacity !== undefined ? cur.opacity : 1) + ')';
-	      if (last.strokeStyle !== cur.strokeStyle || last.width !== cur.width ||
-	          last.linecap !== cur.linecap || last.linejoin !== cur.linejoin ||
-	          last.miterlimit !== cur.miterlimit) {
-	        if (last.strokeStyle !== undefined) {
-	          context2d.stroke();
-	        }
-	        context2d.beginPath();
-	        context2d.strokeStyle = cur.strokeStyle;
-	        context2d.lineWidth = cur.width;
-	        context2d.lineCap = cur.linecap;
-	        context2d.lineJoin = cur.linejoin;
-	        context2d.miterLimit = miterLimit;
-	      }
-	      for (j = 0; j < line.length; j += 1) {
-	        pos = m_this.featureGcsToDisplay(posFunc(line[j], j, d, i));
-	        if (!j) {
-	          firstPos = pos;
-	          context2d.moveTo(pos.x, pos.y);
-	        } else {
-	          context2d.lineTo(pos.x, pos.y);
-	        }
-	      }
-	      if (cur.closed) {
-	        context2d.lineTo(firstPos.x, firstPos.y);
-	      }
-	      temp = last;
-	      last = cur;
-	      cur = temp;
-	    });
-	    if (last.strokeStyle !== undefined) {
-	      context2d.stroke();
-	    }
-	  };
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(canvas_lineFeature, lineFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[lineFeature.capabilities.basic] = true;
-	capabilities[lineFeature.capabilities.multicolor] = false;
-
-	registerFeature('canvas', 'line', canvas_lineFeature, capabilities);
-
-	module.exports = canvas_lineFeature;
-
-
-/***/ }),
-/* 274 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var pixelmapFeature = __webpack_require__(242);
-
-	/**
-	 * Create a new instance of class pixelmapFeature
-	 *
-	 * @class geo.canvas.pixelmapFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.pixelmapFeature
-	 * @returns {canvas_pixelmapFeature}
-	 */
-	var canvas_pixelmapFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof canvas_pixelmapFeature)) {
-	    return new canvas_pixelmapFeature(arg);
-	  }
-	  pixelmapFeature.call(this, arg);
-
-	  var object = __webpack_require__(272);
-	  object.call(this);
-
-	  this._init(arg);
-	  return this;
-	};
-
-	inherit(canvas_pixelmapFeature, pixelmapFeature);
-
-	// Now register it
-	registerFeature('canvas', 'pixelmap', canvas_pixelmapFeature);
-	module.exports = canvas_pixelmapFeature;
-
-
-/***/ }),
-/* 275 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var quadFeature = __webpack_require__(223);
-
-	/**
-	 * Create a new instance of class quadFeature
-	 *
-	 * @class geo.canvas.quadFeature
-	 * @param {Object} arg Options object
-	 * @extends geo.quadFeature
-	 * @returns {geo.canvas.quadFeature}
-	 */
-	var canvas_quadFeature = function (arg) {
-	  'use strict';
-
-	  if (!(this instanceof canvas_quadFeature)) {
-	    return new canvas_quadFeature(arg);
-	  }
-	  quadFeature.call(this, arg);
-
-	  var object = __webpack_require__(272);
-	  object.call(this);
-
-	  var $ = __webpack_require__(1);
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      s_init = this._init,
-	      s_update = this._update,
-	      m_quads;
-
-	  /**
-	   * Build this feature
-	   */
-	  this._build = function () {
-	    if (!m_this.position()) {
-	      return;
-	    }
-	    m_quads = this._generateQuads();
-
-	    if (m_quads.imgQuads) {
-	      m_quads.imgQuads.sort(function (a, b) {
-	        return a.pos[2] - b.pos[2];
-	      });
-	    }
-	    m_this.buildTime().modified();
-	  };
-
-	  /**
-	   * Render all of the color quads using a single mapper.
-	   *
-	   * @param renderState: the render state used for the render.
-	   */
-	  this._renderColorQuads = function (renderState) {
-	      // ....
-	      // Not implemented yet.
-	  };
-
-	  /**
-	   * Render all of the image quads using a single mapper.
-	   *
-	   * @param renderState: the render state used for the render.
-	   */
-	  this._renderImageQuads = function (context2d, map) {
-	    if (!m_quads.imgQuads.length) {
-	      return;
-	    }
-
-	    var oldAlpha = context2d.globalAlpha;
-	    var opacity = oldAlpha;
-	    $.each(m_quads.imgQuads, function (idx, quad) {
-	      if (!quad.image) {
-	        return;
-	      }
-	      var w = quad.image.width,
-	          h = quad.image.height;
-	      // Canvas transform is affine, so quad has to be a parallelogram
-	      // Also, canvas has no way to render z.
-	      var p0 = map.gcsToDisplay({x:quad.pos[0], y:quad.pos[1]}, null),
-	          p3 = map.gcsToDisplay({x:quad.pos[9], y:quad.pos[10]}, null),
-	          p2 = map.gcsToDisplay({x:quad.pos[6], y:quad.pos[7]}, null);
-	      context2d.setTransform((p3.x - p2.x) / w, (p3.y - p2.y) / h,
-	                             (p0.x - p2.x) / w, (p0.y - p2.y) / h,
-	                             p2.x, p2.y);
-	      if (quad.opacity !== opacity) {
-	        opacity = quad.opacity;
-	        context2d.globalAlpha = opacity;
-	      }
-	      if (!quad.crop) {
-	        context2d.drawImage(quad.image, 0, 0);
-	      } else {
-	        context2d.drawImage(quad.image, 0, 0, quad.crop.x, quad.crop.y, 0, 0,
-	                            quad.crop.x, quad.crop.y);
-	      }
-	    });
-	    if (opacity !== oldAlpha) {
-	      context2d.globalAlpha = oldAlpha;
-	    }
-	  };
-
-	  this._renderOnCanvas = function (context, map) {
-	    this._renderImageQuads(context, map);
-	    this._renderColorQuads(context, map);
-	  };
-
-	  /**
-	   * Update
-	   */
-	  this._update = function () {
-	    s_update.call(m_this);
-	    if (m_this.buildTime().getMTime() <= m_this.dataTime().getMTime() ||
-	        m_this.updateTime().getMTime() < m_this.getMTime()) {
-	      m_this._build();
-	    }
-
-	    m_this.updateTime().modified();
-	  };
-
-	  /**
-	   * Initialize
-	   */
-	  this._init = function () {
-	    s_init.call(m_this, arg);
-	  };
-
-	  /**
-	   * Destroy
-	   */
-	  this._exit = function () {
-
-	    s_exit.call(m_this);
-	  };
-
-	  m_this._init(arg);
-	  return this;
-	};
-
-	inherit(canvas_quadFeature, quadFeature);
-
-	// Now register it
-	var capabilities = {};
-	capabilities[quadFeature.capabilities.color] = false;
-	capabilities[quadFeature.capabilities.image] = true;
-	capabilities[quadFeature.capabilities.imageCrop] = true;
-	capabilities[quadFeature.capabilities.imageFixedScale] = true;
-	capabilities[quadFeature.capabilities.imageFull] = false;
-	capabilities[quadFeature.capabilities.canvas] = true;
-
-	registerFeature('canvas', 'quad', canvas_quadFeature, capabilities);
-	module.exports = canvas_quadFeature;
-
-
-/***/ }),
-/* 276 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var registerFeature = __webpack_require__(201).registerFeature;
-	var textFeature = __webpack_require__(218);
-	var util = __webpack_require__(83);
-	var mat3 = __webpack_require__(277);
-	var vec3 = __webpack_require__(138);
-
-	/**
-	 * Create a new instance of class canvas.textFeature.
-	 *
-	 * @class
-	 * @alias geo.canvas.textFeature
-	 * @extends geo.textFeature
-	 * @extends geo.canvas.object
-	 *
-	 * @param {geo.textFeature.spec} [arg] Options for the feature.
-	 * @returns {geo.canvas.textFeature} The created feature.
-	 */
-	var canvas_textFeature = function (arg) {
-	  'use strict';
-	  if (!(this instanceof canvas_textFeature)) {
-	    return new canvas_textFeature(arg);
-	  }
-
-	  var object = __webpack_require__(272);
-
-	  arg = arg || {};
-	  textFeature.call(this, arg);
-	  object.call(this);
-
-	  /**
-	   * @private
-	   */
-	  var m_this = this,
-	      m_defaultFont = 'bold 16px sans-serif',
-	      /* This regexp parses css font specifications into style, variant,
-	       * weight, stretch, size, line height, and family.  It is based on a
-	       * regexp here: https://stackoverflow.com/questions/10135697/regex-to-parse-any-css-font,
-	       * but has been modified to fix some issues and handle font stretch. */
-	      m_cssFontRegExp = new RegExp(
-	        '^\\s*' +
-	        '(?=(?:(?:[-a-z0-9]+\\s+){0,3}(italic|oblique))?)' +
-	        '(?=(?:(?:[-a-z0-9]+\\s+){0,3}(small-caps))?)' +
-	        '(?=(?:(?:[-a-z0-9]+\\s+){0,3}(bold(?:er)?|lighter|[1-9]00))?)' +
-	        '(?=(?:(?:[-a-z0-9]+\\s+){0,3}((?:ultra-|extra-|semi-)?(?:condensed|expanded)))?)' +
-	        '(?:(?:normal|\\1|\\2|\\3|\\4)\\s+){0,4}' +
-	        '((?:xx?-)?(?:small|large)|medium|smaller|larger|[.\\d]+(?:\\%|in|[cem]m|ex|p[ctx]))' +
-	        '(?:/(normal|[.\\d]+(?:\\%|in|[cem]m|ex|p[ctx])))?\\s+' +
-	        '([-,\\"\\sa-z]+?)\\s*$', 'i');
-
-	  /**
-	   * Get the font for a specific data item.  This falls back to the default
-	   * font if the value is unset or doesn't contain sufficient information.
-	   *
-	   * @param {boolean} useSubValues If truthy, check all font styles (such as
-	   *    `fontSize`, `lineHeight`, etc., and override the code `font` style
-	   *    with those values.  If falsy, only use `font`.
-	   * @param {object} d The current data element.
-	   * @param {number} i The index of the current data element.
-	   * @returns {string} The font style.
-	   */
-	  this.getFontFromStyles = function (useSubValues, d, i) {
-	    var font = m_this.style.get('font')(d, i) || m_defaultFont;
-	    if (useSubValues) {
-	      var parts = m_cssFontRegExp.exec(font);
-	      if (parts === null) {
-	        parts = m_cssFontRegExp.exec(m_defaultFont);
-	      }
-	      parts[1] = m_this.style.get('fontStyle')(d, i) || parts[1];
-	      parts[2] = m_this.style.get('fontVariant')(d, i) || parts[2];
-	      parts[3] = m_this.style.get('fontWeight')(d, i) || parts[3];
-	      parts[4] = m_this.style.get('fontStretch')(d, i) || parts[4];
-	      parts[5] = m_this.style.get('fontSize')(d, i) || parts[5] || '16px';
-	      parts[6] = m_this.style.get('lineHeight')(d, i) || parts[6];
-	      parts[7] = m_this.style.get('fontFamily')(d, i) || parts[7] || 'sans-serif';
-	      font = (parts[1] || '') + ' ' + (parts[2] || '') + ' ' +
-	             (parts[3] || '') + ' ' + (parts[4] || '') + ' ' +
-	             (parts[5] || '') + (parts[6] ? '/' + parts[6] : '') + ' ' +
-	             parts[7];
-	      font = font.trim().replace(/\s\s+/g, ' ');
-	    }
-	    return font;
-	  };
-
-	  /**
-	   * Render the data on the canvas.
-	   *
-	   * This does not currently support multiline text or word wrapping, since
-	   * canvas doesn't implement that directly.  To support these, each text item
-	   * would need to be split on line breaks, and have the width of the text
-	   * calculated with context2d.measureText to determine word wrapping.  This
-	   * would also need to calculate the effective line height from the font
-	   * specification.
-	   *
-	   * @protected
-	   * @param {CanvasRenderingContext2D} context2d The canvas context to draw in.
-	   * @param {geo.map} map The parent map object.
-	   */
-	  this._renderOnCanvas = function (context2d, map) {
-	    var data = m_this.data(),
-	        posFunc = m_this.style.get('position'),
-	        textFunc = m_this.style.get('text'),
-	        mapRotation = map.rotation(),
-	        mapZoom = map.zoom(),
-	        fontFromSubValues, text, pos, visible, color, blur, stroke, width,
-	        rotation, rotateWithMap, scale, offset,
-	        transform, lastTransform = util.mat3AsArray();
-
-	    /* If any of the font styles other than `font` have values, then we need to
-	     * construct a single font value from the subvalues.  Otherwise, we can
-	     * skip it. */
-	    fontFromSubValues = [
-	      'fontStyle', 'fontVariant', 'fontWeight', 'fontStretch', 'fontSize',
-	      'lineHeight', 'fontFamily'
-	    ].some(function (key) {
-	      return m_this.style(key) !== null && m_this.style(key) !== undefined;
-	    });
-	    /* Clear the canvas property buffer */
-	    m_this._canvasProperty();
-	    data.forEach(function (d, i) {
-	      visible = m_this.style.get('visible')(d, i);
-	      if (!visible && visible !== undefined) {
-	        return;
-	      }
-	      color = util.convertColorAndOpacity(
-	        m_this.style.get('color')(d, i), m_this.style.get('textOpacity')(d, i));
-	      stroke = util.convertColorAndOpacity(
-	        m_this.style.get('textStrokeColor')(d, i), m_this.style.get('textOpacity')(d, i), {r: 0, g: 0, b: 0, a: 0});
-	      if (color.a === 0 && stroke.a === 0) {
-	        return;
-	      }
-	      m_this._canvasProperty(context2d, 'fillStyle', util.convertColorToRGBA(color));
-	      // TODO: get the position position without transform.  If it is outside
-	      // of the map to an extent that there is no chance of text showing,
-	      // skip further processing.
-	      pos = m_this.featureGcsToDisplay(posFunc(d, i));
-	      text = textFunc(d, i);
-	      m_this._canvasProperty(context2d, 'font', m_this.getFontFromStyles(fontFromSubValues, d, i));
-	      m_this._canvasProperty(context2d, 'textAlign', m_this.style.get('textAlign')(d, i) || 'center');
-	      m_this._canvasProperty(context2d, 'textBaseline', m_this.style.get('textBaseline')(d, i) || 'middle');
-	      /* rotation, scale, and offset */
-	      rotation = m_this.style.get('rotation')(d, i) || 0;
-	      rotateWithMap = m_this.style.get('rotateWithMap')(d, i) && mapRotation;
-	      scale = m_this.style.get('textScaled')(d, i);
-	      scale = util.isNonNullFinite(scale) ? Math.pow(2, mapZoom - scale) : null;
-	      offset = m_this.style.get('offset')(d, i);
-	      transform = util.mat3AsArray();
-	      if (rotation || rotateWithMap || (scale && scale !== 1) || (offset && (offset.x || offset.y))) {
-	        mat3.translate(transform, transform, [pos.x, pos.y]);
-	        if (rotateWithMap && mapRotation) {
-	          mat3.rotate(transform, transform, mapRotation);
-	        }
-	        mat3.translate(transform, transform, [
-	          offset && offset.x ? +offset.x : 0,
-	          offset && offset.y ? +offset.y : 0]);
-	        if (rotation) {
-	          mat3.rotate(transform, transform, rotation);
-	        }
-	        if (scale && scale !== 1) {
-	          mat3.scale(transform, transform, [scale, scale]);
-	        }
-	        mat3.translate(transform, transform, [-pos.x, -pos.y]);
-	      }
-	      if (lastTransform[0] !== transform[0] || lastTransform[1] !== transform[1] ||
-	          lastTransform[3] !== transform[3] || lastTransform[4] !== transform[4] ||
-	          lastTransform[6] !== transform[6] || lastTransform[7] !== transform[7]) {
-	        context2d.setTransform(transform[0], transform[1], transform[3], transform[4], transform[6], transform[7]);
-	        mat3.copy(lastTransform, transform);
-	      }
-	      /* shadow */
-	      color = util.convertColorAndOpacity(
-	        m_this.style.get('shadowColor')(d, i), undefined, {r: 0, g: 0, b: 0, a: 0});
-	      if (color.a) {
-	        offset = m_this.style.get('shadowOffset')(d, i);
-	        blur = m_this.style.get('shadowBlur')(d, i);
-	      }
-	      if (color.a && ((offset && (offset.x || offset.y)) || blur)) {
-	        m_this._canvasProperty(context2d, 'shadowColor', util.convertColorToRGBA(color));
-	        if (offset && (rotation || rotateWithMap) && m_this.style.get('shadowRotate')(d, i)) {
-	          transform = [+offset.x, +offset.y, 0];
-	          vec3.rotateZ(transform, transform, [0, 0, 0],
-	                       rotation + (rotateWithMap ? mapRotation : 0));
-	          offset = {x: transform[0], y: transform[1]};
-	        }
-	        m_this._canvasProperty(context2d, 'shadowOffsetX', offset && offset.x ? +offset.x : 0);
-	        m_this._canvasProperty(context2d, 'shadowOffsetY', offset && offset.y ? +offset.y : 0);
-	        m_this._canvasProperty(context2d, 'shadowBlur', blur || 0);
-	      } else {
-	        m_this._canvasProperty(context2d, 'shadowColor', 'rgba(0,0,0,0)');
-	      }
-	      /* draw the text */
-	      if (stroke.a) {
-	        width = m_this.style.get('textStrokeWidth')(d, i);
-	        if (isFinite(width) && width > 0) {
-	          m_this._canvasProperty(context2d, 'strokeStyle', util.convertColorToRGBA(stroke));
-	          m_this._canvasProperty(context2d, 'lineWidth', width);
-	          context2d.strokeText(text, pos.x, pos.y);
-	          m_this._canvasProperty(context2d, 'shadowColor', 'rgba(0,0,0,0)');
-	        }
-	      }
-	      context2d.fillText(text, pos.x, pos.y);
-	    });
-	    m_this._canvasProperty(context2d, 'globalAlpha', 1);
-	    context2d.setTransform(1, 0, 0, 1, 0, 0);
-	  };
-
-	  return this;
-	};
-
-	inherit(canvas_textFeature, textFeature);
-
-	// Now register it
-	var capabilities = {};
-
-	registerFeature('canvas', 'text', canvas_textFeature, capabilities);
-
-	module.exports = canvas_textFeature;
-
-
-/***/ }),
-/* 277 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	module.exports = {
-	  adjoint: __webpack_require__(278)
-	  , clone: __webpack_require__(279)
-	  , copy: __webpack_require__(280)
-	  , create: __webpack_require__(281)
-	  , determinant: __webpack_require__(282)
-	  , frob: __webpack_require__(283)
-	  , fromMat2: __webpack_require__(284)
-	  , fromMat4: __webpack_require__(285)
-	  , fromQuat: __webpack_require__(286)
-	  , identity: __webpack_require__(287)
-	  , invert: __webpack_require__(288)
-	  , multiply: __webpack_require__(289)
-	  , normalFromMat4: __webpack_require__(290)
-	  , rotate: __webpack_require__(291)
-	  , scale: __webpack_require__(292)
-	  , str: __webpack_require__(293)
-	  , translate: __webpack_require__(294)
-	  , transpose: __webpack_require__(295)
-	}
-
-
-/***/ }),
-/* 278 */
-/***/ (function(module, exports) {
-
-	module.exports = adjoint
-
-	/**
-	 * Calculates the adjugate of a mat3
-	 *
-	 * @alias mat3.adjoint
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the source matrix
-	 * @returns {mat3} out
-	 */
-	function adjoint(out, a) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-
-	  out[0] = (a11 * a22 - a12 * a21)
-	  out[1] = (a02 * a21 - a01 * a22)
-	  out[2] = (a01 * a12 - a02 * a11)
-	  out[3] = (a12 * a20 - a10 * a22)
-	  out[4] = (a00 * a22 - a02 * a20)
-	  out[5] = (a02 * a10 - a00 * a12)
-	  out[6] = (a10 * a21 - a11 * a20)
-	  out[7] = (a01 * a20 - a00 * a21)
-	  out[8] = (a00 * a11 - a01 * a10)
-
-	  return out
-	}
-
-
-/***/ }),
-/* 279 */
-/***/ (function(module, exports) {
-
-	module.exports = clone
-
-	/**
-	 * Creates a new mat3 initialized with values from an existing matrix
-	 *
-	 * @alias mat3.clone
-	 * @param {mat3} a matrix to clone
-	 * @returns {mat3} a new 3x3 matrix
-	 */
-	function clone(a) {
-	  var out = new Float32Array(9)
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = a[2]
-	  out[3] = a[3]
-	  out[4] = a[4]
-	  out[5] = a[5]
-	  out[6] = a[6]
-	  out[7] = a[7]
-	  out[8] = a[8]
-	  return out
-	}
-
-
-/***/ }),
-/* 280 */
-/***/ (function(module, exports) {
-
-	module.exports = copy
-
-	/**
-	 * Copy the values from one mat3 to another
-	 *
-	 * @alias mat3.copy
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the source matrix
-	 * @returns {mat3} out
-	 */
-	function copy(out, a) {
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = a[2]
-	  out[3] = a[3]
-	  out[4] = a[4]
-	  out[5] = a[5]
-	  out[6] = a[6]
-	  out[7] = a[7]
-	  out[8] = a[8]
-	  return out
-	}
-
-
-/***/ }),
-/* 281 */
-/***/ (function(module, exports) {
-
-	module.exports = create
-
-	/**
-	 * Creates a new identity mat3
-	 *
-	 * @alias mat3.create
-	 * @returns {mat3} a new 3x3 matrix
-	 */
-	function create() {
-	  var out = new Float32Array(9)
-	  out[0] = 1
-	  out[1] = 0
-	  out[2] = 0
-	  out[3] = 0
-	  out[4] = 1
-	  out[5] = 0
-	  out[6] = 0
-	  out[7] = 0
-	  out[8] = 1
-	  return out
-	}
-
-
-/***/ }),
-/* 282 */
-/***/ (function(module, exports) {
-
-	module.exports = determinant
-
-	/**
-	 * Calculates the determinant of a mat3
-	 *
-	 * @alias mat3.determinant
-	 * @param {mat3} a the source matrix
-	 * @returns {Number} determinant of a
-	 */
-	function determinant(a) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-
-	  return a00 * (a22 * a11 - a12 * a21)
-	       + a01 * (a12 * a20 - a22 * a10)
-	       + a02 * (a21 * a10 - a11 * a20)
-	}
-
-
-/***/ }),
-/* 283 */
-/***/ (function(module, exports) {
-
-	module.exports = frob
-
-	/**
-	 * Returns Frobenius norm of a mat3
-	 *
-	 * @alias mat3.frob
-	 * @param {mat3} a the matrix to calculate Frobenius norm of
-	 * @returns {Number} Frobenius norm
-	 */
-	function frob(a) {
-	  return Math.sqrt(
-	      a[0]*a[0]
-	    + a[1]*a[1]
-	    + a[2]*a[2]
-	    + a[3]*a[3]
-	    + a[4]*a[4]
-	    + a[5]*a[5]
-	    + a[6]*a[6]
-	    + a[7]*a[7]
-	    + a[8]*a[8]
-	  )
-	}
-
-
-/***/ }),
-/* 284 */
-/***/ (function(module, exports) {
-
-	module.exports = fromMat2d
-
-	/**
-	 * Copies the values from a mat2d into a mat3
-	 *
-	 * @alias mat3.fromMat2d
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat2d} a the matrix to copy
-	 * @returns {mat3} out
-	 **/
-	function fromMat2d(out, a) {
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = 0
-
-	  out[3] = a[2]
-	  out[4] = a[3]
-	  out[5] = 0
-
-	  out[6] = a[4]
-	  out[7] = a[5]
-	  out[8] = 1
-
-	  return out
-	}
-
-
-/***/ }),
-/* 285 */
-/***/ (function(module, exports) {
-
-	module.exports = fromMat4
-
-	/**
-	 * Copies the upper-left 3x3 values into the given mat3.
-	 *
-	 * @alias mat3.fromMat4
-	 * @param {mat3} out the receiving 3x3 matrix
-	 * @param {mat4} a   the source 4x4 matrix
-	 * @returns {mat3} out
-	 */
-	function fromMat4(out, a) {
-	  out[0] = a[0]
-	  out[1] = a[1]
-	  out[2] = a[2]
-	  out[3] = a[4]
-	  out[4] = a[5]
-	  out[5] = a[6]
-	  out[6] = a[8]
-	  out[7] = a[9]
-	  out[8] = a[10]
-	  return out
-	}
-
-
-/***/ }),
-/* 286 */
-/***/ (function(module, exports) {
-
-	module.exports = fromQuat
-
-	/**
-	* Calculates a 3x3 matrix from the given quaternion
-	*
-	* @alias mat3.fromQuat
-	* @param {mat3} out mat3 receiving operation result
-	* @param {quat} q Quaternion to create matrix from
-	*
-	* @returns {mat3} out
-	*/
-	function fromQuat(out, q) {
-	  var x = q[0]
-	  var y = q[1]
-	  var z = q[2]
-	  var w = q[3]
-
-	  var x2 = x + x
-	  var y2 = y + y
-	  var z2 = z + z
-
-	  var xx = x * x2
-	  var yx = y * x2
-	  var yy = y * y2
-	  var zx = z * x2
-	  var zy = z * y2
-	  var zz = z * z2
-	  var wx = w * x2
-	  var wy = w * y2
-	  var wz = w * z2
-
-	  out[0] = 1 - yy - zz
-	  out[3] = yx - wz
-	  out[6] = zx + wy
-
-	  out[1] = yx + wz
-	  out[4] = 1 - xx - zz
-	  out[7] = zy - wx
-
-	  out[2] = zx - wy
-	  out[5] = zy + wx
-	  out[8] = 1 - xx - yy
-
-	  return out
-	}
-
-
-/***/ }),
-/* 287 */
-/***/ (function(module, exports) {
-
-	module.exports = identity
-
-	/**
-	 * Set a mat3 to the identity matrix
-	 *
-	 * @alias mat3.identity
-	 * @param {mat3} out the receiving matrix
-	 * @returns {mat3} out
-	 */
-	function identity(out) {
-	  out[0] = 1
-	  out[1] = 0
-	  out[2] = 0
-	  out[3] = 0
-	  out[4] = 1
-	  out[5] = 0
-	  out[6] = 0
-	  out[7] = 0
-	  out[8] = 1
-	  return out
-	}
-
-
-/***/ }),
-/* 288 */
-/***/ (function(module, exports) {
-
-	module.exports = invert
-
-	/**
-	 * Inverts a mat3
-	 *
-	 * @alias mat3.invert
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the source matrix
-	 * @returns {mat3} out
-	 */
-	function invert(out, a) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-
-	  var b01 = a22 * a11 - a12 * a21
-	  var b11 = -a22 * a10 + a12 * a20
-	  var b21 = a21 * a10 - a11 * a20
-
-	  // Calculate the determinant
-	  var det = a00 * b01 + a01 * b11 + a02 * b21
-
-	  if (!det) return null
-	  det = 1.0 / det
-
-	  out[0] = b01 * det
-	  out[1] = (-a22 * a01 + a02 * a21) * det
-	  out[2] = (a12 * a01 - a02 * a11) * det
-	  out[3] = b11 * det
-	  out[4] = (a22 * a00 - a02 * a20) * det
-	  out[5] = (-a12 * a00 + a02 * a10) * det
-	  out[6] = b21 * det
-	  out[7] = (-a21 * a00 + a01 * a20) * det
-	  out[8] = (a11 * a00 - a01 * a10) * det
-
-	  return out
-	}
-
-
-/***/ }),
-/* 289 */
-/***/ (function(module, exports) {
-
-	module.exports = multiply
-
-	/**
-	 * Multiplies two mat3's
-	 *
-	 * @alias mat3.multiply
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the first operand
-	 * @param {mat3} b the second operand
-	 * @returns {mat3} out
-	 */
-	function multiply(out, a, b) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-
-	  var b00 = b[0], b01 = b[1], b02 = b[2]
-	  var b10 = b[3], b11 = b[4], b12 = b[5]
-	  var b20 = b[6], b21 = b[7], b22 = b[8]
-
-	  out[0] = b00 * a00 + b01 * a10 + b02 * a20
-	  out[1] = b00 * a01 + b01 * a11 + b02 * a21
-	  out[2] = b00 * a02 + b01 * a12 + b02 * a22
-
-	  out[3] = b10 * a00 + b11 * a10 + b12 * a20
-	  out[4] = b10 * a01 + b11 * a11 + b12 * a21
-	  out[5] = b10 * a02 + b11 * a12 + b12 * a22
-
-	  out[6] = b20 * a00 + b21 * a10 + b22 * a20
-	  out[7] = b20 * a01 + b21 * a11 + b22 * a21
-	  out[8] = b20 * a02 + b21 * a12 + b22 * a22
-
-	  return out
-	}
-
-
-/***/ }),
-/* 290 */
-/***/ (function(module, exports) {
-
-	module.exports = normalFromMat4
-
-	/**
-	* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
-	*
-	* @alias mat3.normalFromMat4
-	* @param {mat3} out mat3 receiving operation result
-	* @param {mat4} a Mat4 to derive the normal matrix from
-	*
-	* @returns {mat3} out
-	*/
-	function normalFromMat4(out, a) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3]
-	  var a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7]
-	  var a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11]
-	  var a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]
-
-	  var b00 = a00 * a11 - a01 * a10
-	  var b01 = a00 * a12 - a02 * a10
-	  var b02 = a00 * a13 - a03 * a10
-	  var b03 = a01 * a12 - a02 * a11
-	  var b04 = a01 * a13 - a03 * a11
-	  var b05 = a02 * a13 - a03 * a12
-	  var b06 = a20 * a31 - a21 * a30
-	  var b07 = a20 * a32 - a22 * a30
-	  var b08 = a20 * a33 - a23 * a30
-	  var b09 = a21 * a32 - a22 * a31
-	  var b10 = a21 * a33 - a23 * a31
-	  var b11 = a22 * a33 - a23 * a32
-
-	  // Calculate the determinant
-	  var det = b00 * b11
-	          - b01 * b10
-	          + b02 * b09
-	          + b03 * b08
-	          - b04 * b07
-	          + b05 * b06
-
-	  if (!det) return null
-	  det = 1.0 / det
-
-	  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det
-	  out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det
-	  out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det
-
-	  out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det
-	  out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det
-	  out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det
-
-	  out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det
-	  out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det
-	  out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det
-
-	  return out
-	}
-
-
-/***/ }),
-/* 291 */
-/***/ (function(module, exports) {
-
-	module.exports = rotate
-
-	/**
-	 * Rotates a mat3 by the given angle
-	 *
-	 * @alias mat3.rotate
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the matrix to rotate
-	 * @param {Number} rad the angle to rotate the matrix by
-	 * @returns {mat3} out
-	 */
-	function rotate(out, a, rad) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-
-	  var s = Math.sin(rad)
-	  var c = Math.cos(rad)
-
-	  out[0] = c * a00 + s * a10
-	  out[1] = c * a01 + s * a11
-	  out[2] = c * a02 + s * a12
-
-	  out[3] = c * a10 - s * a00
-	  out[4] = c * a11 - s * a01
-	  out[5] = c * a12 - s * a02
-
-	  out[6] = a20
-	  out[7] = a21
-	  out[8] = a22
-
-	  return out
-	}
-
-
-/***/ }),
-/* 292 */
-/***/ (function(module, exports) {
-
-	module.exports = scale
-
-	/**
-	 * Scales the mat3 by the dimensions in the given vec2
-	 *
-	 * @alias mat3.scale
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the matrix to rotate
-	 * @param {vec2} v the vec2 to scale the matrix by
-	 * @returns {mat3} out
-	 **/
-	function scale(out, a, v) {
-	  var x = v[0]
-	  var y = v[1]
-
-	  out[0] = x * a[0]
-	  out[1] = x * a[1]
-	  out[2] = x * a[2]
-
-	  out[3] = y * a[3]
-	  out[4] = y * a[4]
-	  out[5] = y * a[5]
-
-	  out[6] = a[6]
-	  out[7] = a[7]
-	  out[8] = a[8]
-
-	  return out
-	}
-
-
-/***/ }),
-/* 293 */
-/***/ (function(module, exports) {
-
-	module.exports = str
-
-	/**
-	 * Returns a string representation of a mat3
-	 *
-	 * @alias mat3.str
-	 * @param {mat3} mat matrix to represent as a string
-	 * @returns {String} string representation of the matrix
-	 */
-	function str(a) {
-	  return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +
-	                   a[3] + ', ' + a[4] + ', ' + a[5] + ', ' +
-	                   a[6] + ', ' + a[7] + ', ' + a[8] + ')'
-	}
-
-
-/***/ }),
-/* 294 */
-/***/ (function(module, exports) {
-
-	module.exports = translate
-
-	/**
-	 * Translate a mat3 by the given vector
-	 *
-	 * @alias mat3.translate
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the matrix to translate
-	 * @param {vec2} v vector to translate by
-	 * @returns {mat3} out
-	 */
-	function translate(out, a, v) {
-	  var a00 = a[0], a01 = a[1], a02 = a[2]
-	  var a10 = a[3], a11 = a[4], a12 = a[5]
-	  var a20 = a[6], a21 = a[7], a22 = a[8]
-	  var x = v[0], y = v[1]
-
-	  out[0] = a00
-	  out[1] = a01
-	  out[2] = a02
-
-	  out[3] = a10
-	  out[4] = a11
-	  out[5] = a12
-
-	  out[6] = x * a00 + y * a10 + a20
-	  out[7] = x * a01 + y * a11 + a21
-	  out[8] = x * a02 + y * a12 + a22
-
-	  return out
-	}
-
-
-/***/ }),
-/* 295 */
-/***/ (function(module, exports) {
-
-	module.exports = transpose
-
-	/**
-	 * Transpose the values of a mat3
-	 *
-	 * @alias mat3.transpose
-	 * @param {mat3} out the receiving matrix
-	 * @param {mat3} a the source matrix
-	 * @returns {mat3} out
-	 */
-	function transpose(out, a) {
-	  // If we are transposing ourselves we can skip a few steps but have to cache some values
-	  if (out === a) {
-	    var a01 = a[1], a02 = a[2], a12 = a[5]
-	    out[1] = a[3]
-	    out[2] = a[6]
-	    out[3] = a01
-	    out[5] = a[7]
-	    out[6] = a02
-	    out[7] = a12
-	  } else {
-	    out[0] = a[0]
-	    out[1] = a[3]
-	    out[2] = a[6]
-	    out[3] = a[1]
-	    out[4] = a[4]
-	    out[5] = a[7]
-	    out[6] = a[2]
-	    out[7] = a[5]
-	    out[8] = a[8]
-	  }
-
-	  return out
-	}
-
-
-/***/ }),
-/* 296 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var registerLayerAdjustment = __webpack_require__(201).registerLayerAdjustment;
-
-	var canvas_tileLayer = function () {
-	  'use strict';
-	  var m_this = this,
-	      s_init = this._init,
-	      s_exit = this._exit,
-	      m_quadFeature,
-	      m_nextTileId = 0,
-	      m_tiles = [];
-
-	  /* Add a tile to the list of quads */
-	  this._drawTile = function (tile) {
-	    if (!m_quadFeature) {
-	      return;
-	    }
-	    var bounds = this._tileBounds(tile),
-	        level = tile.index.level || 0,
-	        to = this._tileOffset(level),
-	        crop = this.tileCropFromBounds(tile),
-	        quad = {};
-	    if (crop) {
-	      quad.crop = crop;
-	    }
-	    quad.ul = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.ll = this.fromLocal(this.fromLevel({
-	      x: bounds.left - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ur = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.top - to.y
-	    }, level), 0);
-	    quad.lr = this.fromLocal(this.fromLevel({
-	      x: bounds.right - to.x, y: bounds.bottom - to.y
-	    }, level), 0);
-	    quad.ul.z = quad.ll.z = quad.ur.z = quad.lr.z = level * 1e-5;
-	    m_nextTileId += 1;
-	    quad.id = m_nextTileId;
-	    tile.quadId = quad.id;
-	    quad.image = tile.image;
-	    m_tiles.push(quad);
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	    m_this.draw();
-	  };
-
-	  /* Remove the tile feature. */
-	  this._remove = function (tile) {
-	    if (tile.quadId !== undefined && m_quadFeature) {
-	      for (var i = 0; i < m_tiles.length; i += 1) {
-	        if (m_tiles[i].id === tile.quadId) {
-	          m_tiles.splice(i, 1);
-	          break;
-	        }
-	      }
-	      m_quadFeature.data(m_tiles);
-	      m_quadFeature._update();
-	      m_this.draw();
-	    }
-	  };
-
-	  /**
-	   * Clean up the layer.
-	   */
-	  this._exit = function () {
-	    m_this.deleteFeature(m_quadFeature);
-	    m_quadFeature = null;
-	    m_tiles = [];
-	    s_exit.apply(m_this, arguments);
-	  };
-
-	  /**
-	   * Initialize after the layer is added to the map.
-	   */
-	  this._init = function () {
-	    s_init.apply(m_this, arguments);
-	    m_quadFeature = this.createFeature('quad', {
-	      previewColor: m_this._options.previewColor,
-	      previewImage: m_this._options.previewImage
-	    });
-	    m_quadFeature.geoTrigger = undefined;
-	    m_quadFeature.gcs(m_this._options.gcs || m_this.map().gcs());
-	    m_quadFeature.data(m_tiles);
-	    m_quadFeature._update();
-	  };
-
-	  /* These functions don't need to do anything. */
-	  this._getSubLayer = function () {};
-	  this._updateSubLayers = undefined;
-	};
-
-	registerLayerAdjustment('canvas', 'tile', canvas_tileLayer);
-	module.exports = canvas_tileLayer;
-
-
-/***/ }),
-/* 297 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	/**
-	 * @namespace geo.gui
-	 */
-	module.exports = {
-	  domWidget: __webpack_require__(298),
-	  legendWidget: __webpack_require__(300),
-	  sliderWidget: __webpack_require__(302),
-	  svgWidget: __webpack_require__(301),
-	  uiLayer: __webpack_require__(237),
-	  widget: __webpack_require__(299)
-	};
-
-
-/***/ }),
-/* 298 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var widget = __webpack_require__(299);
-	var inherit = __webpack_require__(8);
-	var registerWidget = __webpack_require__(201).registerWidget;
-
-	var domWidget = function (arg) {
-	  'use strict';
-	  if (!(this instanceof domWidget)) {
-	    return new domWidget(arg);
-	  }
-
-	  widget.call(this, arg);
-
-	  var m_this = this,
-	      m_default_canvas = 'div';
-
-	  /**
-	   * Initializes DOM Widget.
-	   * Sets the canvas for the widget, does parent/child relationship management,
-	   * appends it to it's parent and handles any positioning logic.
-	   */
-	  this._init = function () {
-	    if (arg.hasOwnProperty('parent')) {
-	      arg.parent.addChild(m_this);
-	    }
-
-	    m_this._createCanvas();
-	    m_this._appendChild();
-
-	    m_this.canvas().addEventListener('mousedown', function (e) {
-	      e.stopPropagation();
-	    });
-
-	    m_this.reposition();
-	  };
-
-	  /**
-	   * Creates the widget canvas.
-	   * This is just a simple DOM element (based on args.el, or defaults to a div)
-	   */
-	  this._createCanvas = function () {
-	    m_this.canvas(document.createElement(arg.el || m_default_canvas));
-	  };
-
-	  return this;
-	};
-
-	inherit(domWidget, widget);
-
-	registerWidget('dom', 'dom', domWidget);
-	module.exports = domWidget;
-
-
-/***/ }),
-/* 299 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var inherit = __webpack_require__(8);
-	var sceneObject = __webpack_require__(208);
-
-	/**
-	 * Create a new instance of class widget
-	 *
-	 * @class geo.gui.widget
-	 * @extends {geo.sceneObject}
-	 * @returns {geo.gui.widget}
-	 */
-	var widget = function (arg) {
-	  'use strict';
-	  if (!(this instanceof widget)) {
-	    return new widget(arg);
-	  }
-	  sceneObject.call(this, arg);
-
-	  var geo_event = __webpack_require__(9);
-	  var createFeature = __webpack_require__(201).createFeature;
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      m_layer = arg.layer,
-	      m_canvas = null;
-
-	  arg.position = arg.position === undefined ? { left: 0, top: 0 } : arg.position;
-
-	  if (arg.parent !== undefined && !(arg.parent instanceof widget)) {
-	    throw new Error('Parent must be of type geo.gui.widget');
-	  }
-
-	  this._init = function () {
-	    m_this.modified();
-	  };
-
-	  this._exit = function () {
-	    m_this.children().forEach(function (child) {
-	      m_this._deleteFeature(child);
-	    });
-
-	    m_this.layer().geoOff(geo_event.pan, m_this.repositionEvent);
-	    m_this.parentCanvas().removeChild(m_this.canvas());
-	    s_exit();
-	  };
-
-	  /**
-	   * Create feature give a name
-	   *
-	   * @returns {geo.Feature} Will return a new feature
-	   */
-	  this._createFeature = function (featureName, arg) {
-
-	    var newFeature = createFeature(
-	      featureName, m_this, m_this.renderer(), arg);
-
-	    m_this.addChild(newFeature);
-	    m_this.modified();
-	    return newFeature;
-	  };
-
-	  /**
-	   * Delete feature
-	   */
-	  this._deleteFeature = function (feature) {
-	    m_this.removeChild(feature);
-	    feature._exit();
-	    return m_this;
-	  };
-
-	  /**
-	   * Return the layer associated with this widget.
-	   */
-	  this.layer = function () {
-	    return m_layer;
-	  };
-
-	  /**
-	   * Create the canvas this widget will operate on.
-	   */
-	  this._createCanvas = function () {
-	    throw new Error('Must be defined in derived classes');
-	  };
-
-	  /**
-	   * Get/Set the canvas for the widget
-	   */
-	  this.canvas = function (val) {
-	    if (val === undefined) {
-	      return m_canvas;
-	    } else {
-	      m_canvas = val;
-	    }
-	  };
-
-	  /**
-	   * Appends a child to the widget
-	   * The widget determines how to append itself to a parent, the parent can either
-	   * be another widget, or the UI Layer.
-	   */
-	  this._appendChild = function () {
-	    m_this.parentCanvas().appendChild(m_this.canvas());
-	  };
-
-	  /**
-	   * Get the parent canvas (top level widgets define their layer as their parent canvas)
-	   */
-	  this.parentCanvas = function () {
-	    if (m_this.parent === undefined) {
-	      return m_this.layer().canvas();
-	    } else {
-	      return m_this.parent().canvas();
-	    }
-	  };
-
-	  /**
-	   * Gets the CSS positioning that a widget should be placed at.
-	   * { top: 0, left: 0 } by default.
-	   */
-	  this.position = function (pos) {
-	    if (pos !== undefined) {
-	      arg.position = pos;
-	      this.reposition();
-	      return this;
-	    }
-	    var position;
-
-	    if (arg &&
-	        arg.hasOwnProperty('position') &&
-	        arg.position.hasOwnProperty('x') &&
-	        arg.position.hasOwnProperty('y')) {
-
-	      position = m_this.layer().map().gcsToDisplay(arg.position);
-
-	      return {
-	        left: position.x,
-	        top: position.y,
-	        right: null,
-	        bottom: null
-	      };
-	    }
-
-	    return arg.position;
-	  };
-
-	  /**
-	   * Repositions a widget based on the argument passed, or calling position on
-	   * the widget itself.
-	   * @param {object} position A position with the form:
-	   * { top: m, left: n }
-	   */
-	  this.reposition = function (position) {
-	    position = position || m_this.position();
-	    m_this.canvas().style.position = 'absolute';
-
-	    for (var cssAttr in position) {
-	      if (position.hasOwnProperty(cssAttr)) {
-	        // if the property is a number, add px to it, otherwise set it to the
-	        // specified value.  Setting a property to null clears it.  Setting to
-	        // undefined doesn't alter it.
-	        if (/^\s*(\-|\+)?(\d+(\.\d*)?|\d*\.\d+)([eE](\-|\+)?\d+)?\s*$/.test(position[cssAttr])) {
-	          m_this.canvas().style[cssAttr] = ('' + position[cssAttr]).trim() + 'px';
-	        } else {
-	          m_this.canvas().style[cssAttr] = position[cssAttr];
-	        }
-	      }
-	    }
-	  };
-
-	  this.repositionEvent = function () {
-	    return m_this.reposition();
-	  };
-
-	  /**
-	   * Determines whether or not the widget is completely within the viewport.
-	   */
-	  this.isInViewport = function () {
-	    var position = m_this.position();
-	    var layer = m_this.layer();
-
-	    return ((position.left >= 0 && position.top >= 0) &&
-	            (position.left <= layer.width() && position.top <= layer.height()));
-	  };
-
-	  if (arg &&
-	      arg.hasOwnProperty('position') &&
-	      arg.position.hasOwnProperty('x') &&
-	      arg.position.hasOwnProperty('y')) {
-	    this.layer().geoOn(geo_event.pan, m_this.repositionEvent);
-	  }
-	};
-	inherit(widget, sceneObject);
-	module.exports = widget;
-
-
-/***/ }),
-/* 300 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var svgWidget = __webpack_require__(301);
-	var inherit = __webpack_require__(8);
-	var registerWidget = __webpack_require__(201).registerWidget;
-
-	/**
-	 * Create a new instance of class legendWidget
-	 *
-	 * @class geo.gui.legendWidget
-	 * @extends geo.gui.svgWidget
-	 * @returns {geo.gui.legendWidget}
-	 */
-	var legendWidget = function (arg) {
-	  'use strict';
-	  if (!(this instanceof legendWidget)) {
-	    return new legendWidget(arg);
-	  }
-	  svgWidget.call(this, arg);
-
-	  var d3 = __webpack_require__(226);
-	  var geo_event = __webpack_require__(9);
-
-	  /** @private */
-	  var m_this = this,
-	      m_categories = [],
-	      m_top = null,
-	      m_group = null,
-	      m_border = null,
-	      m_spacing = 20, // distance in pixels between lines
-	      m_padding = 12, // padding in pixels inside the border
-	      s_createCanvas = this._createCanvas,
-	      s_appendChild = this._appendChild;
-
-	  /**
-	   * Get or set the category array associated with
-	   * the legend.  Each element of this array is
-	   * an object: ::
-	   *     {
-	   *         name: string,
-	   *         style: object,
-	   *         type: 'point' | 'line' | ...
-	   *     }
-	   *
-	   * The style property can contain the following feature styles:
-	   *     * fill: bool
-	   *     * fillColor: object | string
-	   *     * fillOpacity: number
-	   *     * stroke: bool
-	   *     * strokeColor: object | string
-	   *     * strokeWidth: number
-	   *     * strokeOpacity: number
-	   *
-	   * The type controls how the element is displayed, point as a circle,
-	   * line as a line segment.  Any other value will display as a rounded
-	   * rectangle.
-	   *
-	   * @param {object[]?} categories The categories to display
-	   */
-	  this.categories = function (arg) {
-	    if (arg === undefined) {
-	      return m_categories.slice();
-	    }
-	    m_categories = arg.slice().map(function (d) {
-	      if (d.type === 'line') {
-	        d.style.fill = false;
-	        d.style.stroke = true;
-	      }
-	      return d;
-	    });
-	    m_this.draw();
-	    return m_this;
-	  };
-
-	  /**
-	   * Get the widget's size
-	   * @return {{width: number, height: number}} The size in pixels
-	   */
-	  this.size = function () {
-	    var width = 1, height;
-	    var test = d3.select(m_this.canvas()).append('text')
-	          .style('opacity', 1e-6);
-
-	    m_categories.forEach(function (d) {
-	      test.text(d.name);
-	      width = Math.max(width, test.node().getBBox().width);
-	    });
-	    test.remove();
-
-	    height = m_spacing * (m_categories.length + 1);
-	    return {
-	      width: width + 50,
-	      height: height
-	    };
-	  };
-
-	  /**
-	   * Redraw the legend
-	   */
-	  this.draw = function () {
-
-	    m_this._init();
-	    function applyColor(selection) {
-	      selection.style('fill', function (d) {
-	        if (d.style.fill || d.style.fill === undefined) {
-	          return d.style.fillColor;
-	        } else {
-	          return 'none';
-	        }
-	      })
-	        .style('fill-opacity', function (d) {
-	          if (d.style.fillOpacity === undefined) {
-	            return 1;
-	          }
-	          return d.style.fillOpacity;
-	        })
-	        .style('stroke', function (d) {
-	          if (d.style.stroke || d.style.stroke === undefined) {
-	            return d.style.strokeColor;
-	          } else {
-	            return 'none';
-	          }
-	        })
-	        .style('stroke-opacity', function (d) {
-	          if (d.style.strokeOpacity === undefined) {
-	            return 1;
-	          }
-	          return d.style.strokeOpacity;
-	        })
-	        .style('stroke-width', function (d) {
-	          if (d.style.strokeWidth === undefined) {
-	            return 1.5;
-	          }
-	          return d.style.strokeWidth;
-	        });
-	    }
-
-	    m_border.attr('height', m_this.size().height + 2 * m_padding)
-	      .style('display', null);
-
-	    var scale = m_this._scale();
-
-	    var labels = m_group.selectAll('g.geo-label')
-	          .data(m_categories, function (d) { return d.name; });
-
-	    var g = labels.enter().append('g')
-	          .attr('class', 'geo-label')
-	          .attr('transform', function (d, i) {
-	            return 'translate(0,' + scale.y(i) + ')';
-	          });
-
-	    applyColor(g.filter(function (d) {
-	      return d.type !== 'point' && d.type !== 'line';
-	    }).append('rect')
-	               .attr('x', 0)
-	               .attr('y', -6)
-	               .attr('rx', 5)
-	               .attr('ry', 5)
-	               .attr('width', 40)
-	               .attr('height', 12)
-	              );
-
-	    applyColor(g.filter(function (d) {
-	      return d.type === 'point';
-	    }).append('circle')
-	               .attr('cx', 20)
-	               .attr('cy', 0)
-	               .attr('r', 6)
-	              );
-
-	    applyColor(g.filter(function (d) {
-	      return d.type === 'line';
-	    }).append('line')
-	               .attr('x1', 0)
-	               .attr('y1', 0)
-	               .attr('x2', 40)
-	               .attr('y2', 0)
-	              );
-
-	    g.append('text')
-	      .attr('x', '50px')
-	      .attr('y', 0)
-	      .attr('dy', '0.3em')
-	      .text(function (d) {
-	        return d.name;
-	      });
-
-	    m_this.reposition();
-
-	    return m_this;
-	  };
-
-	  /**
-	   * Get scales for the x and y axis for the current size.
-	   * @private
-	   */
-	  this._scale = function () {
-	    return {
-	      x: d3.scale.linear()
-	        .domain([0, 1])
-	        .range([0, m_this.size().width]),
-	      y: d3.scale.linear()
-	        .domain([0, m_categories.length - 1])
-	        .range([m_padding / 2, m_this.size().height - m_padding / 2])
-	    };
-	  };
-
-	  /**
-	   * Private initialization.  Creates the widget's DOM container and internal
-	   * variables.
-	   * @private
-	   */
-	  this._init = function () {
-	    // adding categories redraws the entire thing by calling _init, see
-	    // the m_top.remove() line below
-	    if (!m_top) {
-	      s_createCanvas();
-	      s_appendChild();
-	    }
-
-	    // total size = interior size + 2 * padding + 2 * width of the border
-	    var w = m_this.size().width + 2 * m_padding + 4,
-	        h = m_this.size().height + 2 * m_padding + 4;
-
-	    // @todo - removing after creating to maintain the appendChild structure
-	    if (m_top) {
-	      m_top.remove();
-	    }
-
-	    d3.select(m_this.canvas()).attr('width', w).attr('height', h);
-
-	    m_top = d3.select(m_this.canvas()).append('g');
-	    m_group = m_top
-	      .append('g')
-	      .attr('transform', 'translate(' + [m_padding + 2, m_padding + 2] + ')');
-	    m_border = m_group.append('rect')
-	      .attr('x', -m_padding)
-	      .attr('y', -m_padding)
-	      .attr('width', w - 4)
-	      .attr('height', h - 4)
-	      .attr('rx', 3)
-	      .attr('ry', 3)
-	      .style({
-	        'stroke': 'black',
-	        'stroke-width': '1.5px',
-	        'fill': 'white',
-	        'fill-opacity': 0.75,
-	        'display': 'none'
-	      });
-	    m_group.on('mousedown', function () {
-	      d3.event.stopPropagation();
-	    });
-	    m_group.on('mouseover', function () {
-	      m_border.transition()
-	        .duration(250)
-	        .style('fill-opacity', 1);
-	    });
-	    m_group.on('mouseout', function () {
-	      m_border.transition()
-	        .duration(250)
-	        .style('fill-opacity', 0.75);
-	    });
-
-	    m_this.reposition();
-	  };
-
-	  this.geoOn(geo_event.resize, function () {
-	    m_this.draw();
-	  });
-
-	};
-
-	inherit(legendWidget, svgWidget);
-
-	registerWidget('dom', 'legend', legendWidget);
-	module.exports = legendWidget;
-
-
-/***/ }),
-/* 301 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var domWidget = __webpack_require__(298);
-	var inherit = __webpack_require__(8);
-	var registerWidget = __webpack_require__(201).registerWidget;
-
-	/**
-	 * Create a new instance of class geo.gui.svgWidget
-	 *
-	 * Due to the nature of d3 creating DOM elements as it inserts them, calls to appendChild
-	 * don't appear in this widget.
-	 *
-	 * The canvas of an svgWidget always refers to the actual svg element.
-	 * The parentCanvas can refer to another widgets svg element, dom element, or the
-	 * UI layers dom element.
-	 * See {@link geo.gui.widget#parentCanvas}.
-	 *
-	 * @class geo.gui.svgWidget
-	 * @extends geo.gui.domWidget
-	 * @returns {geo.gui.svgWidget}
-	 *
-	 */
-	var svgWidget = function (arg) {
-	  'use strict';
-	  if (!(this instanceof svgWidget)) {
-	    return new svgWidget(arg);
-	  }
-
-	  domWidget.call(this, arg);
-
-	  var d3Renderer = __webpack_require__(256);
-
-	  var m_this = this,
-	      m_renderer = null;
-
-	  this._init = function (arg) {
-	    var d3Parent;
-	    if (arg.hasOwnProperty('parent')) {
-	      arg.parent.addChild(m_this);
-
-	      // Tell the renderer there is an SVG element as a parent
-	      d3Parent = arg.parent.canvas();
-	    }
-
-	    m_this._createCanvas(d3Parent);
-
-	    m_this.canvas().addEventListener('mousedown', function (e) {
-	      e.stopPropagation();
-	    });
-
-	    m_this.reposition();
-	  };
-
-	  /**
-	   * Creates the canvas for the svg widget.
-	   * This directly uses the {@link geo.d3.d3Renderer} as a helper to do all of the heavy
-	   * lifting.
-	   */
-	  this._createCanvas = function (d3Parent) {
-	    var rendererOpts = {
-	      layer: m_this.layer(),
-	      widget: true
-	    };
-
-	    if (d3Parent) {
-	      rendererOpts.d3Parent = d3Parent;
-	    }
-
-	    m_renderer = d3Renderer(rendererOpts);
-
-	    // svg widgets manage their own sizes, so make the resize handler a no-op
-	    m_renderer._resize = function () {};
-
-	    m_this.canvas(m_renderer.canvas()[0][0]);
-	  };
-
-	  return this;
-	};
-
-	inherit(svgWidget, domWidget);
-
-	registerWidget('dom', 'svg', svgWidget);
-	module.exports = svgWidget;
-
-
-/***/ }),
-/* 302 */
-/***/ (function(module, exports, __webpack_require__) {
-
-	var svgWidget = __webpack_require__(301);
-	var inherit = __webpack_require__(8);
-	var registerWidget = __webpack_require__(201).registerWidget;
-
-	/**
-	 * Create a new instance of class sliderWidget
-	 *
-	 * @class geo.gui.sliderWidget
-	 * @extends {geo.gui.svgWidget}
-	 * @returns {geo.gui.sliderWidget}
-	 */
-	var sliderWidget = function (arg) {
-	  'use strict';
-	  if (!(this instanceof sliderWidget)) {
-	    return new sliderWidget(arg);
-	  }
-	  svgWidget.call(this, arg);
-
-	  var d3 = __webpack_require__(226);
-	  var geo_event = __webpack_require__(9);
-
-	  var m_this = this,
-	      s_exit = this._exit,
-	      s_createCanvas = this._createCanvas,
-	      s_appendChild = this._appendChild,
-	      m_xscale,
-	      m_yscale,
-	      m_plus,
-	      m_minus,
-	      m_nub,
-	      m_width = arg.width || 20, // Size of the widget in pixels
-	      m_height = arg.height || 160,  // slider height + 3 * width
-	      m_nubSize = arg.width ? arg.width * 0.5 : 10,
-	      m_plusIcon,
-	      m_minusIcon,
-	      m_group,
-	      m_lowContrast,
-	      m_highlightDur = 100;
-
-	  /* http://icomoon.io */
-	  /* CC BY 3.0 http://creativecommons.org/licenses/by/3.0/ */
-	  m_plusIcon = 'M512 81.92c-237.568 0-430.080 192.614-430.080 430.080 0 237.568 192.563 430.080 430.080 430.080s430.080-192.563 430.080-430.080c0-237.517-192.563-430.080-430.080-430.080zM564.326 564.326v206.182h-104.653v-206.182h-206.234v-104.653h206.182v-206.234h104.704v206.182h206.182v104.704h-206.182z';
-	  m_minusIcon = 'M512 81.92c-237.568 0-430.080 192.614-430.080 430.080 0 237.568 192.563 430.080 430.080 430.080s430.080-192.563 430.080-430.080c0-237.517-192.563-430.080-430.080-430.080zM770.56 459.674v104.704h-517.12v-104.704h517.12z';
-
-	  // Define off-white gray colors for low contrast ui (unselected).
-	  m_lowContrast = {
-	    white: '#f4f4f4',
-	    black: '#505050'
-	  };
-
-	  /**
-	   * Add an icon from a path string.  Returns a d3 group element.
-	   *
-	   * @function
-	   * @argument {String} icon svg path string
-	   * @argument {Array} base where to append the element (d3 selection)
-	   * @argument {Number} cx Center x-coordinate
-	   * @argument {Number} cy Center y-coordinate
-	   * @argument {Number} size Icon size in pixels
-	   * @returns {object}
-	   * @private
-	   */
-	  function put_icon(icon, base, cx, cy, size) {
-	    var g = base.append('g');
-
-	    // the scale factor
-	    var s = size / 1024;
-
-	    g.append('g')
-	      .append('g')
-	        .attr(
-	          'transform',
-	          'translate(' + cx + ',' + cy + ') scale(' + s + ') translate(-512,-512)'
-	      )
-	      .append('path')
-	        .attr('d', icon)
-	        .attr('class', 'geo-glyphicon');
-
-	    return g;
-	  }
-
-	  this.size = function () {
-	    return {width: m_width, height: m_height};
-	  };
-
-	  /**
-	   * Initialize the slider widget in the map.
-	   *
-	   * @function
-	   * @returns {geo.gui.sliderWidget}
-	   * @private
-	   */
-	  this._init = function () {
-	    s_createCanvas();
-	    s_appendChild();
-
-	    m_this.reposition();
-
-	    var svg = d3.select(m_this.canvas()),
-	        map = m_this.layer().map();
-
-	    svg.attr('width', m_width).attr('height', m_height);
-
-	    // create d3 scales for positioning
-	    // TODO: make customizable and responsive
-	    m_xscale = d3.scale.linear().domain([-4, 4]).range([0, m_width]);
-	    m_yscale = d3.scale.linear().domain([0, 1]).range([m_width * 1.5, m_height - m_width * 1.5]);
-
-	    // Create the main group element
-	    svg = svg.append('g').classed('geo-ui-slider', true);
-	    m_group = svg;
-
-	    // Create + zoom button
-	    m_plus = svg.append('g');
-	    m_plus.append('circle')
-	      .datum({
-	        fill: 'white',
-	        stroke: null
-	      })
-	      .classed('geo-zoom-in', true)
-	      .attr('cx', m_xscale(0))
-	      .attr('cy', m_yscale(0.0) - m_width + 2)
-	      .attr('r', (m_width - 2) / 2)
-	      .style({
-	        'cursor': 'pointer'
-	      })
-	      .on('click', function () {
-	        var z = map.zoom();
-	        map.transition({
-	          zoom: z + 1,
-	          ease: d3.ease('cubic-in-out'),
-	          duration: 500
-	        });
-	      })
-	      .on('mousedown', function () {
-	        d3.event.stopPropagation();
-	      });
-
-	    put_icon(
-	      m_plusIcon,
-	      m_plus,
-	      m_xscale(0),
-	      m_yscale(0) - m_width + 2,
-	      m_width + 4
-	    ).style('cursor', 'pointer')
-	      .style('pointer-events', 'none')
-	      .select('path')
-	      .datum({
-	        fill: 'black',
-	        stroke: null
-	      });
-
-	    // Create the - zoom button
-	    m_minus = svg.append('g');
-	    m_minus.append('circle')
-	      .datum({
-	        fill: 'white',
-	        stroke: null
-	      })
-	      .classed('geo-zoom-out', true)
-	      .attr('cx', m_xscale(0))
-	      .attr('cy', m_yscale(1.0) + m_width - 2)
-	      .attr('r', (m_width - 2) / 2)
-	      .style({
-	        'cursor': 'pointer'
-	      })
-	      .on('click', function () {
-	        var z = map.zoom();
-	        map.transition({
-	          zoom: z - 1,
-	          ease: d3.ease('cubic-in-out'),
-	          duration: 500
-	        });
-	      })
-	      .on('mousedown', function () {
-	        d3.event.stopPropagation();
-	      });
-
-	    put_icon(
-	      m_minusIcon,
-	      m_minus,
-	      m_xscale(0),
-	      m_yscale(1) + m_width - 2,
-	      m_width + 4
-	    ).style('cursor', 'pointer')
-	      .style('pointer-events', 'none')
-	      .select('path')
-	      .datum({
-	        fill: 'black',
-	        stroke: null
-	      });
-
-	    // Respond to a mouse event on the widget
-	    function respond(evt, trans) {
-	      var z = m_yscale.invert(d3.mouse(svg.node())[1]),
-	          zrange = map.zoomRange();
-	      z = (1 - z) * (zrange.max - zrange.min) + zrange.min;
-	      if (trans) {
-	        map.transition({
-	          zoom: z,
-	          ease: d3.ease('cubic-in-out'),
-	          duration: 500,
-	          done: m_this._update()
-	        });
-	      } else {
-	        map.zoom(z);
-	        m_this._update();
-	      }
-	      evt.stopPropagation();
-	    }
-
-	    // Create the track
-	    svg.append('rect')
-	      .datum({
-	        fill: 'white',
-	        stroke: 'black'
-	      })
-	      .classed('geo-zoom-track', true)
-	      .attr('x', m_xscale(0) - m_width / 6)
-	      .attr('y', m_yscale(0))
-	      .attr('rx', m_width / 10)
-	      .attr('ry', m_width / 10)
-	      .attr('width', m_width / 3)
-	      .attr('height', m_height - m_width * 3)
-	      .style({
-	        'cursor': 'pointer'
-	      })
-	      .on('click', function () {
-	        respond(d3.event, true);
-	      });
-
-	    // Create the nub
-	    m_nub = svg.append('rect')
-	      .datum({
-	        fill: 'black',
-	        stroke: null
-	      })
-	      .classed('geo-zoom-nub', true)
-	      .attr('x', m_xscale(-4))
-	      .attr('y', m_yscale(0.5) - m_nubSize / 2)
-	      .attr('rx', 3)
-	      .attr('ry', 3)
-	      .attr('width', m_width)
-	      .attr('height', m_nubSize)
-	      .style({
-	        'cursor': 'pointer'
-	      })
-	      .on('mousedown', function () {
-	        d3.select(document).on('mousemove.geo.slider', function () {
-	          respond(d3.event);
-	        });
-	        d3.select(document).on('mouseup.geo.slider', function () {
-	          respond(d3.event);
-	          d3.select(document).on('.geo.slider', null);
-	        });
-	        d3.event.stopPropagation();
-	      });
-
-	    var mouseOver = function () {
-	      d3.select(this).attr('filter', 'url(#geo-highlight)');
-	      m_group.selectAll('rect,path,circle').transition()
-	        .duration(m_highlightDur)
-	        .style('fill', function (d) {
-	          return d.fill || null;
-	        })
-	        .style('stroke', function (d) {
-	          return d.stroke || null;
-	        });
-
-	    };
-
-	    var mouseOut = function () {
-	      d3.select(this).attr('filter', null);
-	      m_group.selectAll('circle,rect,path').transition()
-	        .duration(m_highlightDur)
-	        .style('fill', function (d) {
-	          return m_lowContrast[d.fill] || null;
-	        })
-	        .style('stroke', function (d) {
-	          return m_lowContrast[d.stroke] || null;
-	        });
-	    };
-
-	    m_group.selectAll('*')
-	      .on('mouseover', mouseOver)
-	      .on('mouseout', mouseOut);
-
-	    // Update the nub position on zoom
-	    m_this.layer().geoOn(geo_event.zoom, function () {
-	      m_this._update();
-	    });
-
-	    mouseOut();
-	    m_this._update();
-	  };
-
-	  /**
-	   * Removes the slider element from the map and unbinds all handlers.
-	   *
-	   * @function
-	   * @returns {geo.gui.sliderWidget}
-	   * @private
-	   */
-	  this._exit = function () {
-	    m_group.remove();
-	    m_this.layer().geoOff(geo_event.zoom);
-	    s_exit();
-	  };
-
-	  /**
-	   * Update the slider widget state in reponse to map changes.  I.e. zoom
-	   * range changes.
-	   *
-	   * @function
-	   * @returns {geo.gui.sliderWidget}
-	   * @private
-	   */
-	  this._update = function (obj) {
-	    var map = m_this.layer().map(),
-	        zoomRange = map.zoomRange(),
-	        zoom = map.zoom(),
-	        zoomScale = d3.scale.linear();
-
-	    obj = obj || {};
-	    zoom = obj.value || zoom;
-	    zoomScale.domain([zoomRange.min, zoomRange.max])
-	      .range([1, 0])
-	      .clamp(true);
-
-	    m_nub.attr('y', m_yscale(zoomScale(zoom)) - m_nubSize / 2);
-	  };
-	};
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-	module.exports = sliderWidget;
-
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-/***/ })
-/******/ ])
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diff --git a/built/geo.min.js b/built/geo.min.js
deleted file mode 100644
index 5894a1a7f9..0000000000
--- a/built/geo.min.js
+++ /dev/null
@@ -1,67 +0,0 @@
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-	 * @copyright 2013-2017, Kitware, Inc.
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-	 *
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-	 * @copyright 2014-2016, Kitware, Inc.
-	 * @license Apache-2.0
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-	 * Proj4js
-	 * @copyright 2014, Mike Adair, Richard Greenwood, Didier Richard, Stephen Irons, Olivier Terral and Calvin Metcalf
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-	 * gl-matrix
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-	 *
-	 * JQuery
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-	 * @license MIT
-	 *
-	 * earcut
-	 * @copyright 2016, Mapbox
-	 * @license ISC
-	 *
-	 * kdbush
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t.handled=!0,i.length?(this._setCornersFromMouse(i,t),this.state(m.done),"done"):t.buttonsDown.left?(i.push(n.extend({},t.mapgcs)),i.push(n.extend({},t.mapgcs)),i.push(n.extend({},t.mapgcs)),i.push(n.extend({},t.mapgcs)),!0):void 0}})):new y(t)};r(y,v);var x={};x[d.capabilities.feature]=!0,l("rectangle",y,x);var _=function(t){"use strict";if(!(this instanceof _))return new _(t);var e=this;t=n.extend(!0,{},{style:{fill:!0,fillColor:{r:0,g:1,b:0},fillOpacity:.25,polygon:function(t){return t.polygon},stroke:!0,strokeColor:{r:0,g:0,b:0},strokeOpacity:1,strokeWidth:3,uniformPolygon:!0},editStyle:{closed:!1,fill:!0,fillColor:{r:.3,g:.3,b:.3},fillOpacity:.25,line:function(t){return Array.apply(null,Array(e.options("vertices").length)).map(function(){return t})},polygon:function(t){return t.polygon},position:function(t,i){return e.options("vertices")[i]},stroke:!1,strokeColor:{r:0,g:0,b:1},strokeOpacity:1,strokeWidth:3,uniformPolygon:!0}},t||{}),t.vertices=t.vertices||t.coordinates||[],delete 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m.create:return[{action:a.annotation_line,name:"line create",owner:g,input:"left",modifiers:{shift:!1,ctrl:!1}},{action:a.annotation_line,name:"line create",owner:g,input:"pan"}];default:return[]}},this.processAction=function(t){var e=this.layer();if(this.state()===m.create&&e&&t.state.action===a.annotation_line){var i=e.options("continuousPointProximity");if(i||0===i){var n=this.options("vertices");if(!n.length)return n.push(t.mouse.mapgcs),n.push(t.mouse.mapgcs),!0;var r=e.displayDistance(n[n.length-2],null,t.mouse.map,"display");if(r&&r>i)return n[n.length-1]=t.mouse.mapgcs,n.push(t.mouse.mapgcs),!0}}},this._geojsonCoordinates=function(t){var e=this.coordinates(t);if(e&&!(e.length<2)&&this.state()!==m.create){for(var i=[],n=0;n<e.length;n+=1)i.push([e[n].x,e[n].y]);return i}},this._geojsonGeometryType=function(){return"LineString"},this._geojsonStyles=function(){return["closed","lineCap","lineJoin","strokeColor","strokeOffset","strokeOpacity","strokeWidth"]}};r(w,v);var M={};M[c.capabilities.basic]=[m.create],l("line",w,M);var T=function(t){"use strict";if(!(this instanceof T))return new T(t);var e=this;t=n.extend(!0,{},{style:{fill:!0,fillColor:{r:0,g:1,b:0},fillOpacity:.25,radius:10,scaled:!1,stroke:!0,strokeColor:{r:0,g:0,b:0},strokeOpacity:1,strokeWidth:3}},t||{}),t.position=t.position||(t.coordinates?t.coordinates[0]:void 0),delete t.coordinates,v.call(this,"point",t),this.features=function(){var t,i,r,o=this.options(),a=this.state();switch(a){case m.create:t=[];break;default:i=o.style,(o.style.scaled||0===o.style.scaled)&&(o.style.scaled===!0&&(o.style.scaled=this.layer().map().zoom()),i=n.extend({},i,{radius:function(){var t=o.style.radius,i=e.layer().map().zoom();return u.isFunction(t)&&(t=t.apply(this,arguments)),t*=Math.pow(2,i-o.style.scaled)}}),r=!0),t=[{point:{x:o.position.x,y:o.position.y,style:i,scaleOnZoom:r}}]}return t},this._coordinates=function(t){return t&&t.length>=1&&this.options("position",t[0]),this.state()===m.create?[]:[this.options("position")]},this.mouseClick=function(t){if(this.state()===m.create&&t.buttonsDown.left)return t.handled=!0,this.options("position",t.mapgcs),this.state(m.done),"done"},this._geojsonStyles=function(){return["fill","fillColor","fillOpacity","radius","scaled","stroke","strokeColor","strokeOpacity","strokeWidth"]},this._geojsonCoordinates=function(t){var e=this.coordinates(t);if(e&&this.state()!==m.create&&!(e.length<1)&&void 0!==e[0])return[e[0].x,e[0].y]},this._geojsonGeometryType=function(){return"Point"}};r(T,v);var A={};A[h.capabilities.feature]=!0,l("point",T,A),t.exports={state:m,actionOwner:g,annotation:v,lineAnnotation:w,pointAnnotation:T,polygonAnnotation:_,rectangleAnnotation:y}},function(t,e){function i(){return function(){}}t.exports=function(t,e){var n=i();n.prototype=e.prototype,t.prototype=new n,t.prototype.constructor=t}},function(t,e){var 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i={momentum:"geo_action_momentum",pan:"geo_action_pan",rotate:"geo_action_rotate",select:"geo_action_select",unzoomselect:"geo_action_unzoomselect",zoom:"geo_action_zoom",zoomrotate:"geo_action_zoom_rotate",zoomselect:"geo_action_zoomselect",annotation_line:"geo_annotation_line",annotation_polygon:"geo_annotation_polygon",annotation_rectangle:"geo_annotation_rectangle"};t.exports=i},function(t,e,i){var n=i(12),r=i(83),o={},a=10,s=function(t){"use strict";function e(){i=new n(l.source(),l.target())}if(!(this instanceof s))return t=t||{},t.source in o||(Object.size(o)>=a&&(o={}),o[t.source]={}),t.target in o[t.source]||(Object.size(o[t.source])>=a&&(o[t.source]={}),o[t.source][t.target]=new s(t)),o[t.source][t.target];var i,r,u,l=this;this.source=function(t){return void 0===t?r||"EPSG:4326":(r=t,e(),l)},this.target=function(t){return void 0===t?u||"EPSG:3857":(u=t,e(),l)},this._forward=function(t){var e=i.forward(t);return e.z=t.z||0,e},this._inverse=function(t){var e=i.inverse(t);return 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Amer. 1969"},e.GRS67={a:6378160,rf:298.247167427,ellipseName:"GRS 67(IUGG 1967)"},e.bessel={a:6377397.155,rf:299.1528128,ellipseName:"Bessel 1841"},e.bess_nam={a:6377483.865,rf:299.1528128,ellipseName:"Bessel 1841 (Namibia)"},e.clrk66={a:6378206.4,b:6356583.8,ellipseName:"Clarke 1866"},e.clrk80={a:6378249.145,rf:293.4663,ellipseName:"Clarke 1880 mod."},e.clrk58={a:6378293.645208759,rf:294.2606763692654,ellipseName:"Clarke 1858"},e.CPM={a:6375738.7,rf:334.29,ellipseName:"Comm. des Poids et Mesures 1799"},e.delmbr={a:6376428,rf:311.5,ellipseName:"Delambre 1810 (Belgium)"},e.engelis={a:6378136.05,rf:298.2566,ellipseName:"Engelis 1985"},e.evrst30={a:6377276.345,rf:300.8017,ellipseName:"Everest 1830"},e.evrst48={a:6377304.063,rf:300.8017,ellipseName:"Everest 1948"},e.evrst56={a:6377301.243,rf:300.8017,ellipseName:"Everest 1956"},e.evrst69={a:6377295.664,rf:300.8017,ellipseName:"Everest 1969"},e.evrstSS={a:6377298.556,rf:300.8017,ellipseName:"Everest (Sabah & Sarawak)"},e.fschr60={a:6378166,rf:298.3,ellipseName:"Fischer (Mercury Datum) 1960"},e.fschr60m={a:6378155,rf:298.3,ellipseName:"Fischer 1960"},e.fschr68={a:6378150,rf:298.3,ellipseName:"Fischer 1968"},e.helmert={a:6378200,rf:298.3,ellipseName:"Helmert 1906"},e.hough={a:6378270,rf:297,ellipseName:"Hough"},e.intl={a:6378388,rf:297,ellipseName:"International 1909 (Hayford)"},e.kaula={a:6378163,rf:298.24,ellipseName:"Kaula 1961"},e.lerch={a:6378139,rf:298.257,ellipseName:"Lerch 1979"},e.mprts={a:6397300,rf:191,ellipseName:"Maupertius 1738"},e.new_intl={a:6378157.5,b:6356772.2,ellipseName:"New International 1967"},e.plessis={a:6376523,rf:6355863,ellipseName:"Plessis 1817 (France)"},e.krass={a:6378245,rf:298.3,ellipseName:"Krassovsky, 1942"},e.SEasia={a:6378155,b:6356773.3205,ellipseName:"Southeast Asia"},e.walbeck={a:6376896,b:6355834.8467,ellipseName:"Walbeck"},e.WGS60={a:6378165,rf:298.3,ellipseName:"WGS 60"},e.WGS66={a:6378145,rf:298.25,ellipseName:"WGS 66"},e.WGS7={a:6378135,rf:298.26,ellipseName:"WGS 72"},e.WGS84={a:6378137,rf:298.257223563,ellipseName:"WGS 84"},e.sphere={a:6370997,b:6370997,ellipseName:"Normal Sphere (r=6370997)"}},function(t,e){e.wgs84={towgs84:"0,0,0",ellipse:"WGS84",datumName:"WGS84"},e.ch1903={towgs84:"674.374,15.056,405.346",ellipse:"bessel",datumName:"swiss"},e.ggrs87={towgs84:"-199.87,74.79,246.62",ellipse:"GRS80",datumName:"Greek_Geodetic_Reference_System_1987"},e.nad83={towgs84:"0,0,0",ellipse:"GRS80",datumName:"North_American_Datum_1983"},e.nad27={nadgrids:"@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",ellipse:"clrk66",datumName:"North_American_Datum_1927"},e.potsdam={towgs84:"606.0,23.0,413.0",ellipse:"bessel",datumName:"Potsdam Rauenberg 1950 DHDN"},e.carthage={towgs84:"-263.0,6.0,431.0",ellipse:"clark80",datumName:"Carthage 1934 Tunisia"},e.hermannskogel={towgs84:"653.0,-212.0,449.0",ellipse:"bessel",datumName:"Hermannskogel"},e.ire65={towgs84:"482.530,-130.596,564.557,-1.042,-0.214,-0.631,8.15",ellipse:"mod_airy",datumName:"Ireland 1965"},e.rassadiran={towgs84:"-133.63,-157.5,-158.62",ellipse:"intl",datumName:"Rassadiran"},e.nzgd49={towgs84:"59.47,-5.04,187.44,0.47,-0.1,1.024,-4.5993",ellipse:"intl",datumName:"New Zealand Geodetic Datum 1949"
-},e.osgb36={towgs84:"446.448,-125.157,542.060,0.1502,0.2470,0.8421,-20.4894",ellipse:"airy",datumName:"Airy 1830"},e.s_jtsk={towgs84:"589,76,480",ellipse:"bessel",datumName:"S-JTSK (Ferro)"},e.beduaram={towgs84:"-106,-87,188",ellipse:"clrk80",datumName:"Beduaram"},e.gunung_segara={towgs84:"-403,684,41",ellipse:"bessel",datumName:"Gunung Segara Jakarta"},e.rnb72={towgs84:"106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1",ellipse:"intl",datumName:"Reseau National Belge 1972"}},function(t,e){function i(t,e,i,u,l,c){var h={};return h.datum_type=o,t&&"none"===t&&(h.datum_type=a),e&&(h.datum_params=e.map(parseFloat),0===h.datum_params[0]&&0===h.datum_params[1]&&0===h.datum_params[2]||(h.datum_type=n),h.datum_params.length>3&&(0===h.datum_params[3]&&0===h.datum_params[4]&&0===h.datum_params[5]&&0===h.datum_params[6]||(h.datum_type=r,h.datum_params[3]*=s,h.datum_params[4]*=s,h.datum_params[5]*=s,h.datum_params[6]=h.datum_params[6]/1e6+1))),h.a=i,h.b=u,h.es=l,h.ep2=c,h}var n=1,r=2,o=4,a=5,s=484813681109536e-20;t.exports=i},function(t,e,i){function n(t,e){return(t.datum.datum_type===a||t.datum.datum_type===s)&&"WGS84"!==e.datumCode||(e.datum.datum_type===a||e.datum.datum_type===s)&&"WGS84"!==t.datumCode}var r=.017453292519943295,o=57.29577951308232,a=1,s=2,u=i(36),l=i(38),c=i(14),h=i(39);t.exports=function t(e,i,a){var s;return Array.isArray(a)&&(a=h(a)),e.datum&&i.datum&&n(e,i)&&(s=new c("WGS84"),a=t(e,s,a),e=s),"enu"!==e.axis&&(a=l(e,!1,a)),"longlat"===e.projName?a={x:a.x*r,y:a.y*r}:(e.to_meter&&(a={x:a.x*e.to_meter,y:a.y*e.to_meter}),a=e.inverse(a)),e.from_greenwich&&(a.x+=e.from_greenwich),a=u(e.datum,i.datum,a),i.from_greenwich&&(a={x:a.x-i.grom_greenwich,y:a.y}),"longlat"===i.projName?a={x:a.x*o,y:a.y*o}:(a=i.forward(a),i.to_meter&&(a={x:a.x/i.to_meter,y:a.y/i.to_meter})),"enu"!==i.axis?l(i,!0,a):a}},function(t,e,i){function n(t){return t===r||t===o}var r=1,o=2,a=5,s=i(37);t.exports=function(t,e,i){return s.compareDatums(t,e)?i:t.datum_type===a||e.datum_type===a?i:t.es!==e.es||t.a!==e.a||n(t.datum_type)||n(e.datum_type)?(i=s.geodeticToGeocentric(i,t.es,t.a),n(t.datum_type)&&(i=s.geocentricToWgs84(i,t.datum_type,t.datum_params)),n(e.datum_type)&&(i=s.geocentricFromWgs84(i,e.datum_type,e.datum_params)),s.geocentricToGeodetic(i,e.es,e.a,e.b)):i}},function(t,e){"use strict";var i=1,n=2,r=Math.PI/2;e.compareDatums=function(t,e){return t.datum_type===e.datum_type&&(!(t.a!==e.a||Math.abs(this.es-e.es)>5e-11)&&(t.datum_type===i?this.datum_params[0]===e.datum_params[0]&&t.datum_params[1]===e.datum_params[1]&&t.datum_params[2]===e.datum_params[2]:t.datum_type!==n||t.datum_params[0]===e.datum_params[0]&&t.datum_params[1]===e.datum_params[1]&&t.datum_params[2]===e.datum_params[2]&&t.datum_params[3]===e.datum_params[3]&&t.datum_params[4]===e.datum_params[4]&&t.datum_params[5]===e.datum_params[5]&&t.datum_params[6]===e.datum_params[6]))},e.geodeticToGeocentric=function(t,e,i){var n,o,a,s,u=t.x,l=t.y,c=t.z?t.z:0;if(l<-r&&l>-1.001*r)l=-r;else if(l>r&&l<1.001*r)l=r;else if(l<-r||l>r)return null;return u>Math.PI&&(u-=2*Math.PI),o=Math.sin(l),s=Math.cos(l),a=o*o,n=i/Math.sqrt(1-e*a),{x:(n+c)*s*Math.cos(u),y:(n+c)*s*Math.sin(u),z:(n*(1-e)+c)*o}},e.geocentricToGeodetic=function(t,e,i,n){var o,a,s,u,l,c,h,d,f,p,m,g,v,y,x,_,b=1e-12,w=b*b,M=30,T=t.x,A=t.y,E=t.z?t.z:0;if(o=Math.sqrt(T*T+A*A),a=Math.sqrt(T*T+A*A+E*E),o/i<b){if(y=0,a/i<b)return x=r,_=-n,{x:t.x,y:t.y,z:t.z}}else y=Math.atan2(A,T);s=E/a,u=o/a,l=1/Math.sqrt(1-e*(2-e)*u*u),d=u*(1-e)*l,f=s*l,v=0;do v++,h=i/Math.sqrt(1-e*f*f),_=o*d+E*f-h*(1-e*f*f),c=e*h/(h+_),l=1/Math.sqrt(1-c*(2-c)*u*u),p=u*(1-c)*l,m=s*l,g=m*d-p*f,d=p,f=m;while(g*g>w&&v<M);return x=Math.atan(m/Math.abs(p)),{x:y,y:x,z:_}},e.geocentricToWgs84=function(t,e,r){if(e===i)return{x:t.x+r[0],y:t.y+r[1],z:t.z+r[2]};if(e===n){var o=r[0],a=r[1],s=r[2],u=r[3],l=r[4],c=r[5],h=r[6];return{x:h*(t.x-c*t.y+l*t.z)+o,y:h*(c*t.x+t.y-u*t.z)+a,z:h*(-l*t.x+u*t.y+t.z)+s}}},e.geocentricFromWgs84=function(t,e,r){if(e===i)return{x:t.x-r[0],y:t.y-r[1],z:t.z-r[2]};if(e===n){var o=r[0],a=r[1],s=r[2],u=r[3],l=r[4],c=r[5],h=r[6],d=(t.x-o)/h,f=(t.y-a)/h,p=(t.z-s)/h;return{x:d+c*f-l*p,y:-c*d+f+u*p,z:l*d-u*f+p}}}},function(t,e){t.exports=function(t,e,i){var n,r,o,a=i.x,s=i.y,u=i.z||0,l={};for(o=0;o<3;o++)if(!e||2!==o||void 0!==i.z)switch(0===o?(n=a,r="x"):1===o?(n=s,r="y"):(n=u,r="z"),t.axis[o]){case"e":l[r]=n;break;case"w":l[r]=-n;break;case"n":l[r]=n;break;case"s":l[r]=-n;break;case"u":void 0!==i[r]&&(l.z=n);break;case"d":void 0!==i[r]&&(l.z=-n);break;default:return null}return l}},function(t,e){t.exports=function(t){var e={x:t[0],y:t[1]};return t.length>2&&(e.z=t[2]),t.length>3&&(e.m=t[3]),e}},function(t,e,i){function n(t,e,i){if(!(this instanceof n))return new n(t,e,i);if(Array.isArray(t))this.x=t[0],this.y=t[1],this.z=t[2]||0;else if("object"==typeof t)this.x=t.x,this.y=t.y,this.z=t.z||0;else if("string"==typeof t&&"undefined"==typeof e){var r=t.split(",");this.x=parseFloat(r[0],10),this.y=parseFloat(r[1],10),this.z=parseFloat(r[2],10)||0}else this.x=t,this.y=e,this.z=i||0;console.warn("proj4.Point will be removed in version 3, use proj4.toPoint")}var r=i(41);n.fromMGRS=function(t){return new n(r.toPoint(t))},n.prototype.toMGRS=function(t){return r.forward([this.x,this.y],t)},t.exports=n},function(t,e){function i(t){return t*(Math.PI/180)}function n(t){return 180*(t/Math.PI)}function r(t){var e,n,r,o,s,u,l,c,h,d=t.lat,f=t.lon,p=6378137,m=.00669438,g=.9996,v=i(d),y=i(f);h=Math.floor((f+180)/6)+1,180===f&&(h=60),d>=56&&d<64&&f>=3&&f<12&&(h=32),d>=72&&d<84&&(f>=0&&f<9?h=31:f>=9&&f<21?h=33:f>=21&&f<33?h=35:f>=33&&f<42&&(h=37)),e=6*(h-1)-180+3,c=i(e),n=m/(1-m),r=p/Math.sqrt(1-m*Math.sin(v)*Math.sin(v)),o=Math.tan(v)*Math.tan(v),s=n*Math.cos(v)*Math.cos(v),u=Math.cos(v)*(y-c),l=p*((1-m/4-3*m*m/64-5*m*m*m/256)*v-(3*m/8+3*m*m/32+45*m*m*m/1024)*Math.sin(2*v)+(15*m*m/256+45*m*m*m/1024)*Math.sin(4*v)-35*m*m*m/3072*Math.sin(6*v));var x=g*r*(u+(1-o+s)*u*u*u/6+(5-18*o+o*o+72*s-58*n)*u*u*u*u*u/120)+5e5,_=g*(l+r*Math.tan(v)*(u*u/2+(5-o+9*s+4*s*s)*u*u*u*u/24+(61-58*o+o*o+600*s-330*n)*u*u*u*u*u*u/720));return d<0&&(_+=1e7),{northing:Math.round(_),easting:Math.round(x),zoneNumber:h,zoneLetter:a(d)}}function o(t){var e=t.northing,i=t.easting,r=t.zoneLetter,a=t.zoneNumber;if(a<0||a>60)return null;var s,u,l,c,h,d,f,p,m,g,v=.9996,y=6378137,x=.00669438,_=(1-Math.sqrt(1-x))/(1+Math.sqrt(1-x)),b=i-5e5,w=e;r<"N"&&(w-=1e7),p=6*(a-1)-180+3,s=x/(1-x),f=w/v,m=f/(y*(1-x/4-3*x*x/64-5*x*x*x/256)),g=m+(3*_/2-27*_*_*_/32)*Math.sin(2*m)+(21*_*_/16-55*_*_*_*_/32)*Math.sin(4*m)+151*_*_*_/96*Math.sin(6*m),u=y/Math.sqrt(1-x*Math.sin(g)*Math.sin(g)),l=Math.tan(g)*Math.tan(g),c=s*Math.cos(g)*Math.cos(g),h=y*(1-x)/Math.pow(1-x*Math.sin(g)*Math.sin(g),1.5),d=b/(u*v);var M=g-u*Math.tan(g)/h*(d*d/2-(5+3*l+10*c-4*c*c-9*s)*d*d*d*d/24+(61+90*l+298*c+45*l*l-252*s-3*c*c)*d*d*d*d*d*d/720);M=n(M);var T=(d-(1+2*l+c)*d*d*d/6+(5-2*c+28*l-3*c*c+8*s+24*l*l)*d*d*d*d*d/120)/Math.cos(g);T=p+n(T);var A;if(t.accuracy){var E=o({northing:t.northing+t.accuracy,easting:t.easting+t.accuracy,zoneLetter:t.zoneLetter,zoneNumber:t.zoneNumber});A={top:E.lat,right:E.lon,bottom:M,left:T}}else A={lat:M,lon:T};return A}function a(t){var e="Z";return 84>=t&&t>=72?e="X":72>t&&t>=64?e="W":64>t&&t>=56?e="V":56>t&&t>=48?e="U":48>t&&t>=40?e="T":40>t&&t>=32?e="S":32>t&&t>=24?e="R":24>t&&t>=16?e="Q":16>t&&t>=8?e="P":8>t&&t>=0?e="N":0>t&&t>=-8?e="M":-8>t&&t>=-16?e="L":-16>t&&t>=-24?e="K":-24>t&&t>=-32?e="J":-32>t&&t>=-40?e="H":-40>t&&t>=-48?e="G":-48>t&&t>=-56?e="F":-56>t&&t>=-64?e="E":-64>t&&t>=-72?e="D":-72>t&&t>=-80&&(e="C"),e}function s(t,e){var i="00000"+t.easting,n="00000"+t.northing;return t.zoneNumber+t.zoneLetter+u(t.easting,t.northing,t.zoneNumber)+i.substr(i.length-5,e)+n.substr(n.length-5,e)}function u(t,e,i){var n=l(i),r=Math.floor(t/1e5),o=Math.floor(e/1e5)%20;return c(r,o,n)}function l(t){var e=t%m;return 0===e&&(e=m),e}function c(t,e,i){var n=i-1,r=g.charCodeAt(n),o=v.charCodeAt(n),a=r+t-1,s=o+e,u=!1;a>w&&(a=a-w+y-1,u=!0),(a===x||r<x&&a>x||(a>x||r<x)&&u)&&a++,(a===_||r<_&&a>_||(a>_||r<_)&&u)&&(a++,a===x&&a++),a>w&&(a=a-w+y-1),s>b?(s=s-b+y-1,u=!0):u=!1,(s===x||o<x&&s>x||(s>x||o<x)&&u)&&s++,(s===_||o<_&&s>_||(s>_||o<_)&&u)&&(s++,s===x&&s++),s>b&&(s=s-b+y-1);var l=String.fromCharCode(a)+String.fromCharCode(s);return l}function h(t){if(t&&0===t.length)throw"MGRSPoint coverting from nothing";for(var e,i=t.length,n=null,r="",o=0;!/[A-Z]/.test(e=t.charAt(o));){if(o>=2)throw"MGRSPoint bad conversion from: "+t;r+=e,o++}var a=parseInt(r,10);if(0===o||o+3>i)throw"MGRSPoint bad conversion from: "+t;var s=t.charAt(o++);if(s<="A"||"B"===s||"Y"===s||s>="Z"||"I"===s||"O"===s)throw"MGRSPoint zone letter "+s+" not handled: "+t;n=t.substring(o,o+=2);for(var u=l(a),c=d(n.charAt(0),u),h=f(n.charAt(1),u);h<p(s);)h+=2e6;var m=i-o;if(m%2!==0)throw"MGRSPoint has to have an even number \nof digits after the zone letter and two 100km letters - front \nhalf for easting meters, second half for \nnorthing meters"+t;var g,v,y,x,_,b=m/2,w=0,M=0;return b>0&&(g=1e5/Math.pow(10,b),v=t.substring(o,o+b),w=parseFloat(v)*g,y=t.substring(o+b),M=parseFloat(y)*g),x=w+c,_=M+h,{easting:x,northing:_,zoneLetter:s,zoneNumber:a,accuracy:g}}function d(t,e){for(var i=g.charCodeAt(e-1),n=1e5,r=!1;i!==t.charCodeAt(0);){if(i++,i===x&&i++,i===_&&i++,i>w){if(r)throw"Bad character: "+t;i=y,r=!0}n+=1e5}return n}function f(t,e){if(t>"V")throw"MGRSPoint given invalid Northing "+t;for(var i=v.charCodeAt(e-1),n=0,r=!1;i!==t.charCodeAt(0);){if(i++,i===x&&i++,i===_&&i++,i>b){if(r)throw"Bad character: "+t;i=y,r=!0}n+=1e5}return n}function p(t){var e;switch(t){case"C":e=11e5;break;case"D":e=2e6;break;case"E":e=28e5;break;case"F":e=37e5;break;case"G":e=46e5;break;case"H":e=55e5;break;case"J":e=64e5;break;case"K":e=73e5;break;case"L":e=82e5;break;case"M":e=91e5;break;case"N":e=0;break;case"P":e=8e5;break;case"Q":e=17e5;break;case"R":e=26e5;break;case"S":e=35e5;break;case"T":e=44e5;break;case"U":e=53e5;break;case"V":e=62e5;break;case"W":e=7e6;break;case"X":e=79e5;break;default:e=-1}if(e>=0)return e;throw"Invalid zone letter: "+t}var m=6,g="AJSAJS",v="AFAFAF",y=65,x=73,_=79,b=86,w=90;e.forward=function(t,e){return e=e||5,s(r({lat:t[1],lon:t[0]}),e)},e.inverse=function(t){var e=o(h(t.toUpperCase()));return e.lat&&e.lon?[e.lon,e.lat,e.lon,e.lat]:[e.left,e.bottom,e.right,e.top]},e.toPoint=function(t){var e=o(h(t.toUpperCase()));return e.lat&&e.lon?[e.lon,e.lat]:[(e.left+e.right)/2,(e.top+e.bottom)/2]}},function(t,e){t.exports="2.3.16"},function(t,e,i){var n=[i(44),i(48),i(50),i(53),i(54),i(55),i(56),i(57),i(58),i(67),i(69),i(71),i(72),i(74),i(75),i(76),i(77),i(78),i(79),i(80),i(81),i(82)];t.exports=function(t){n.forEach(function(e){t.Proj.projections.add(e)})}},function(t,e,i){var n=i(45),r=i(46),o=i(47),a=i(26),s=Math.PI/2,u=1e-10,l=i(27);e.init=function(){this.x0=void 0!==this.x0?this.x0:0,this.y0=void 0!==this.y0?this.y0:0,this.long0=void 0!==this.long0?this.long0:0,this.lat0=void 0!==this.lat0?this.lat0:0,this.es&&(this.en=n(this.es),this.ml0=r(this.lat0,Math.sin(this.lat0),Math.cos(this.lat0),this.en))},e.forward=function(t){var e,i,n,o=t.x,s=t.y,l=a(o-this.long0),c=Math.sin(s),h=Math.cos(s);if(this.es){var d=h*l,f=Math.pow(d,2),p=this.ep2*Math.pow(h,2),m=Math.pow(p,2),g=Math.abs(h)>u?Math.tan(s):0,v=Math.pow(g,2),y=Math.pow(v,2);e=1-this.es*Math.pow(c,2),d/=Math.sqrt(e);var x=r(s,c,h,this.en);i=this.a*(this.k0*d*(1+f/6*(1-v+p+f/20*(5-18*v+y+14*p-58*v*p+f/42*(61+179*y-y*v-479*v)))))+this.x0,n=this.a*(this.k0*(x-this.ml0+c*l*d/2*(1+f/12*(5-v+9*p+4*m+f/30*(61+y-58*v+270*p-330*v*p+f/56*(1385+543*y-y*v-3111*v))))))+this.y0}else{var _=h*Math.sin(l);if(Math.abs(Math.abs(_)-1)<u)return 93;if(i=.5*this.a*this.k0*Math.log((1+_)/(1-_))+this.x0,n=h*Math.cos(l)/Math.sqrt(1-Math.pow(_,2)),_=Math.abs(n),_>=1){if(_-1>u)return 93;n=0}else n=Math.acos(n);s<0&&(n=-n),n=this.a*this.k0*(n-this.lat0)+this.y0}return t.x=i,t.y=n,t},e.inverse=function(t){var e,i,n,r,c=(t.x-this.x0)*(1/this.a),h=(t.y-this.y0)*(1/this.a);if(this.es)if(e=this.ml0+h/this.k0,i=o(e,this.es,this.en),Math.abs(i)<s){var d=Math.sin(i),f=Math.cos(i),p=Math.abs(f)>u?Math.tan(i):0,m=this.ep2*Math.pow(f,2),g=Math.pow(m,2),v=Math.pow(p,2),y=Math.pow(v,2);e=1-this.es*Math.pow(d,2);var x=c*Math.sqrt(e)/this.k0,_=Math.pow(x,2);e*=p,n=i-e*_/(1-this.es)*.5*(1-_/12*(5+3*v-9*m*v+m-4*g-_/30*(61+90*v-252*m*v+45*y+46*m-_/56*(1385+3633*v+4095*y+1574*y*v)))),r=a(this.long0+x*(1-_/6*(1+2*v+m-_/20*(5+28*v+24*y+8*m*v+6*m-_/42*(61+662*v+1320*y+720*y*v))))/f)}else n=s*l(h),r=0;else{var b=Math.exp(c/this.k0),w=.5*(b-1/b),M=this.lat0+h/this.k0,T=Math.cos(M);e=Math.sqrt((1-Math.pow(T,2))/(1+Math.pow(w,2))),n=Math.asin(e),h<0&&(n=-n),r=0===w&&0===T?0:a(Math.atan2(w,T)+this.long0)}return t.x=r,t.y=n,t},e.names=["Transverse_Mercator","Transverse Mercator","tmerc"]},function(t,e){var i=1,n=.25,r=.046875,o=.01953125,a=.01068115234375,s=.75,u=.46875,l=.013020833333333334,c=.007120768229166667,h=.3645833333333333,d=.005696614583333333,f=.3076171875;t.exports=function(t){var e=[];e[0]=i-t*(n+t*(r+t*(o+t*a))),e[1]=t*(s-t*(r+t*(o+t*a)));var p=t*t;return e[2]=p*(u-t*(l+t*c)),p*=t,e[3]=p*(h-t*d),e[4]=p*t*f,e}},function(t,e){t.exports=function(t,e,i,n){return i*=e,e*=e,n[0]*t-i*(n[1]+e*(n[2]+e*(n[3]+e*n[4])))}},function(t,e,i){var n=i(46),r=1e-10,o=20;t.exports=function(t,e,i){for(var a=1/(1-e),s=t,u=o;u;--u){var l=Math.sin(s),c=1-e*l*l;if(c=(n(s,l,Math.cos(s),i)-t)*(c*Math.sqrt(c))*a,s-=c,Math.abs(c)<r)return s}return s}},function(t,e,i){var n=i(49),r=i(44);e.dependsOn="tmerc",e.init=function(){var t=n(this.zone,this.long0);t&&(this.lat0=0,this.long0=(t+.5)*Math.PI/30-Math.PI,this.x0=5e5,this.y0=this.utmSouth?1e7:0,this.k0=.9996,r.init.apply(this),this.forward=r.forward,this.inverse=r.inverse)},e.names=["Universal Transverse Mercator System","utm"]},function(t,e,i){var n=i(26);t.exports=function(t,e){if(t){if(t>0&&t<=60)return t-1}else{if(t=Math.floor(30*(n(e)+Math.PI)/Math.PI),t<0)return 0;if(t>=60)return 59}}},function(t,e,i){var n=i(51),r=i(26);e.init=function(){n.init.apply(this),this.rc&&(this.sinc0=Math.sin(this.phic0),this.cosc0=Math.cos(this.phic0),this.R2=2*this.rc,this.title||(this.title="Oblique Stereographic Alternative"))},e.forward=function(t){var e,i,o,a;return t.x=r(t.x-this.long0),n.forward.apply(this,[t]),e=Math.sin(t.y),i=Math.cos(t.y),o=Math.cos(t.x),a=this.k0*this.R2/(1+this.sinc0*e+this.cosc0*i*o),t.x=a*i*Math.sin(t.x),t.y=a*(this.cosc0*e-this.sinc0*i*o),t.x=this.a*t.x+this.x0,t.y=this.a*t.y+this.y0,t},e.inverse=function(t){var e,i,o,a,s;if(t.x=(t.x-this.x0)/this.a,t.y=(t.y-this.y0)/this.a,t.x/=this.k0,t.y/=this.k0,s=Math.sqrt(t.x*t.x+t.y*t.y)){var u=2*Math.atan2(s,this.R2);e=Math.sin(u),i=Math.cos(u),a=Math.asin(i*this.sinc0+t.y*e*this.cosc0/s),o=Math.atan2(t.x*e,s*this.cosc0*i-t.y*this.sinc0*e)}else a=this.phic0,o=0;return t.x=o,t.y=a,n.inverse.apply(this,[t]),t.x=r(t.x+this.long0),t},e.names=["Stereographic_North_Pole","Oblique_Stereographic","Polar_Stereographic","sterea","Oblique Stereographic Alternative"]},function(t,e,i){var n=Math.PI/4,r=i(52),o=Math.PI/2,a=20;e.init=function(){var t=Math.sin(this.lat0),e=Math.cos(this.lat0);e*=e,this.rc=Math.sqrt(1-this.es)/(1-this.es*t*t),this.C=Math.sqrt(1+this.es*e*e/(1-this.es)),this.phic0=Math.asin(t/this.C),this.ratexp=.5*this.C*this.e,this.K=Math.tan(.5*this.phic0+n)/(Math.pow(Math.tan(.5*this.lat0+n),this.C)*r(this.e*t,this.ratexp))},e.forward=function(t){var e=t.x,i=t.y;return t.y=2*Math.atan(this.K*Math.pow(Math.tan(.5*i+n),this.C)*r(this.e*Math.sin(i),this.ratexp))-o,t.x=this.C*e,t},e.inverse=function(t){for(var e=1e-14,i=t.x/this.C,s=t.y,u=Math.pow(Math.tan(.5*s+n)/this.K,1/this.C),l=a;l>0&&(s=2*Math.atan(u*r(this.e*Math.sin(t.y),-.5*this.e))-o,!(Math.abs(s-t.y)<e));--l)t.y=s;return l?(t.x=i,t.y=s,t):null},e.names=["gauss"]},function(t,e){t.exports=function(t,e){return Math.pow((1-t)/(1+t),e)}},function(t,e,i){var n=Math.PI/2,r=1e-10,o=i(27),a=i(25),s=i(28),u=i(29),l=i(26);e.ssfn_=function(t,e,i){return e*=i,Math.tan(.5*(n+t))*Math.pow((1-e)/(1+e),.5*i)},e.init=function(){this.coslat0=Math.cos(this.lat0),this.sinlat0=Math.sin(this.lat0),this.sphere?1===this.k0&&!isNaN(this.lat_ts)&&Math.abs(this.coslat0)<=r&&(this.k0=.5*(1+o(this.lat0)*Math.sin(this.lat_ts))):(Math.abs(this.coslat0)<=r&&(this.lat0>0?this.con=1:this.con=-1),this.cons=Math.sqrt(Math.pow(1+this.e,1+this.e)*Math.pow(1-this.e,1-this.e)),1===this.k0&&!isNaN(this.lat_ts)&&Math.abs(this.coslat0)<=r&&(this.k0=.5*this.cons*a(this.e,Math.sin(this.lat_ts),Math.cos(this.lat_ts))/s(this.e,this.con*this.lat_ts,this.con*Math.sin(this.lat_ts))),this.ms1=a(this.e,this.sinlat0,this.coslat0),this.X0=2*Math.atan(this.ssfn_(this.lat0,this.sinlat0,this.e))-n,this.cosX0=Math.cos(this.X0),this.sinX0=Math.sin(this.X0))},e.forward=function(t){var e,i,o,a,u,c,h=t.x,d=t.y,f=Math.sin(d),p=Math.cos(d),m=l(h-this.long0);return Math.abs(Math.abs(h-this.long0)-Math.PI)<=r&&Math.abs(d+this.lat0)<=r?(t.x=NaN,t.y=NaN,t):this.sphere?(e=2*this.k0/(1+this.sinlat0*f+this.coslat0*p*Math.cos(m)),t.x=this.a*e*p*Math.sin(m)+this.x0,t.y=this.a*e*(this.coslat0*f-this.sinlat0*p*Math.cos(m))+this.y0,t):(i=2*Math.atan(this.ssfn_(d,f,this.e))-n,a=Math.cos(i),o=Math.sin(i),Math.abs(this.coslat0)<=r?(u=s(this.e,d*this.con,this.con*f),c=2*this.a*this.k0*u/this.cons,t.x=this.x0+c*Math.sin(h-this.long0),t.y=this.y0-this.con*c*Math.cos(h-this.long0),t):(Math.abs(this.sinlat0)<r?(e=2*this.a*this.k0/(1+a*Math.cos(m)),t.y=e*o):(e=2*this.a*this.k0*this.ms1/(this.cosX0*(1+this.sinX0*o+this.cosX0*a*Math.cos(m))),t.y=e*(this.cosX0*o-this.sinX0*a*Math.cos(m))+this.y0),t.x=e*a*Math.sin(m)+this.x0,t))},e.inverse=function(t){t.x-=this.x0,t.y-=this.y0;var e,i,o,a,s,c=Math.sqrt(t.x*t.x+t.y*t.y);if(this.sphere){var h=2*Math.atan(c/(.5*this.a*this.k0));return e=this.long0,i=this.lat0,c<=r?(t.x=e,t.y=i,t):(i=Math.asin(Math.cos(h)*this.sinlat0+t.y*Math.sin(h)*this.coslat0/c),e=l(Math.abs(this.coslat0)<r?this.lat0>0?this.long0+Math.atan2(t.x,-1*t.y):this.long0+Math.atan2(t.x,t.y):this.long0+Math.atan2(t.x*Math.sin(h),c*this.coslat0*Math.cos(h)-t.y*this.sinlat0*Math.sin(h))),t.x=e,t.y=i,t)}if(Math.abs(this.coslat0)<=r){if(c<=r)return i=this.lat0,e=this.long0,t.x=e,t.y=i,t;t.x*=this.con,t.y*=this.con,o=c*this.cons/(2*this.a*this.k0),i=this.con*u(this.e,o),e=this.con*l(this.con*this.long0+Math.atan2(t.x,-1*t.y))}else a=2*Math.atan(c*this.cosX0/(2*this.a*this.k0*this.ms1)),e=this.long0,c<=r?s=this.X0:(s=Math.asin(Math.cos(a)*this.sinX0+t.y*Math.sin(a)*this.cosX0/c),e=l(this.long0+Math.atan2(t.x*Math.sin(a),c*this.cosX0*Math.cos(a)-t.y*this.sinX0*Math.sin(a)))),i=-1*u(this.e,Math.tan(.5*(n+s)));return t.x=e,t.y=i,t},e.names=["stere","Stereographic_South_Pole","Polar Stereographic (variant B)"]},function(t,e){e.init=function(){var t=this.lat0;this.lambda0=this.long0;var e=Math.sin(t),i=this.a,n=this.rf,r=1/n,o=2*r-Math.pow(r,2),a=this.e=Math.sqrt(o);this.R=this.k0*i*Math.sqrt(1-o)/(1-o*Math.pow(e,2)),this.alpha=Math.sqrt(1+o/(1-o)*Math.pow(Math.cos(t),4)),this.b0=Math.asin(e/this.alpha);var s=Math.log(Math.tan(Math.PI/4+this.b0/2)),u=Math.log(Math.tan(Math.PI/4+t/2)),l=Math.log((1+a*e)/(1-a*e));this.K=s-this.alpha*u+this.alpha*a/2*l},e.forward=function(t){var e=Math.log(Math.tan(Math.PI/4-t.y/2)),i=this.e/2*Math.log((1+this.e*Math.sin(t.y))/(1-this.e*Math.sin(t.y))),n=-this.alpha*(e+i)+this.K,r=2*(Math.atan(Math.exp(n))-Math.PI/4),o=this.alpha*(t.x-this.lambda0),a=Math.atan(Math.sin(o)/(Math.sin(this.b0)*Math.tan(r)+Math.cos(this.b0)*Math.cos(o))),s=Math.asin(Math.cos(this.b0)*Math.sin(r)-Math.sin(this.b0)*Math.cos(r)*Math.cos(o));return t.y=this.R/2*Math.log((1+Math.sin(s))/(1-Math.sin(s)))+this.y0,t.x=this.R*a+this.x0,t},e.inverse=function(t){for(var e=t.x-this.x0,i=t.y-this.y0,n=e/this.R,r=2*(Math.atan(Math.exp(i/this.R))-Math.PI/4),o=Math.asin(Math.cos(this.b0)*Math.sin(r)+Math.sin(this.b0)*Math.cos(r)*Math.cos(n)),a=Math.atan(Math.sin(n)/(Math.cos(this.b0)*Math.cos(n)-Math.sin(this.b0)*Math.tan(r))),s=this.lambda0+a/this.alpha,u=0,l=o,c=-1e3,h=0;Math.abs(l-c)>1e-7;){if(++h>20)return;u=1/this.alpha*(Math.log(Math.tan(Math.PI/4+o/2))-this.K)+this.e*Math.log(Math.tan(Math.PI/4+Math.asin(this.e*Math.sin(l))/2)),c=l,l=2*Math.atan(Math.exp(u))-Math.PI/2}return t.x=s,t.y=l,t},e.names=["somerc"]},function(t,e,i){var n=i(28),r=i(26),o=i(29),a=Math.PI/2,s=Math.PI/4,u=1e-10;e.init=function(){this.no_off=this.no_off||!1,this.no_rot=this.no_rot||!1,isNaN(this.k0)&&(this.k0=1);var t=Math.sin(this.lat0),e=Math.cos(this.lat0),i=this.e*t;this.bl=Math.sqrt(1+this.es/(1-this.es)*Math.pow(e,4)),this.al=this.a*this.bl*this.k0*Math.sqrt(1-this.es)/(1-i*i);var o=n(this.e,this.lat0,t),a=this.bl/e*Math.sqrt((1-this.es)/(1-i*i));a*a<1&&(a=1);var s,u;if(isNaN(this.longc)){var l=n(this.e,this.lat1,Math.sin(this.lat1)),c=n(this.e,this.lat2,Math.sin(this.lat2));this.lat0>=0?this.el=(a+Math.sqrt(a*a-1))*Math.pow(o,this.bl):this.el=(a-Math.sqrt(a*a-1))*Math.pow(o,this.bl);var h=Math.pow(l,this.bl),d=Math.pow(c,this.bl);s=this.el/h,u=.5*(s-1/s);var f=(this.el*this.el-d*h)/(this.el*this.el+d*h),p=(d-h)/(d+h),m=r(this.long1-this.long2);this.long0=.5*(this.long1+this.long2)-Math.atan(f*Math.tan(.5*this.bl*m)/p)/this.bl,this.long0=r(this.long0);var g=r(this.long1-this.long0);this.gamma0=Math.atan(Math.sin(this.bl*g)/u),this.alpha=Math.asin(a*Math.sin(this.gamma0))}else s=this.lat0>=0?a+Math.sqrt(a*a-1):a-Math.sqrt(a*a-1),this.el=s*Math.pow(o,this.bl),u=.5*(s-1/s),this.gamma0=Math.asin(Math.sin(this.alpha)/a),this.long0=this.longc-Math.asin(u*Math.tan(this.gamma0))/this.bl;this.no_off?this.uc=0:this.lat0>=0?this.uc=this.al/this.bl*Math.atan2(Math.sqrt(a*a-1),Math.cos(this.alpha)):this.uc=-1*this.al/this.bl*Math.atan2(Math.sqrt(a*a-1),Math.cos(this.alpha))},e.forward=function(t){var e,i,o,l=t.x,c=t.y,h=r(l-this.long0);if(Math.abs(Math.abs(c)-a)<=u)o=c>0?-1:1,i=this.al/this.bl*Math.log(Math.tan(s+o*this.gamma0*.5)),e=-1*o*a*this.al/this.bl;else{var d=n(this.e,c,Math.sin(c)),f=this.el/Math.pow(d,this.bl),p=.5*(f-1/f),m=.5*(f+1/f),g=Math.sin(this.bl*h),v=(p*Math.sin(this.gamma0)-g*Math.cos(this.gamma0))/m;i=Math.abs(Math.abs(v)-1)<=u?Number.POSITIVE_INFINITY:.5*this.al*Math.log((1-v)/(1+v))/this.bl,e=Math.abs(Math.cos(this.bl*h))<=u?this.al*this.bl*h:this.al*Math.atan2(p*Math.cos(this.gamma0)+g*Math.sin(this.gamma0),Math.cos(this.bl*h))/this.bl}return this.no_rot?(t.x=this.x0+e,t.y=this.y0+i):(e-=this.uc,t.x=this.x0+i*Math.cos(this.alpha)+e*Math.sin(this.alpha),t.y=this.y0+e*Math.cos(this.alpha)-i*Math.sin(this.alpha)),t},e.inverse=function(t){var e,i;this.no_rot?(i=t.y-this.y0,e=t.x-this.x0):(i=(t.x-this.x0)*Math.cos(this.alpha)-(t.y-this.y0)*Math.sin(this.alpha),e=(t.y-this.y0)*Math.cos(this.alpha)+(t.x-this.x0)*Math.sin(this.alpha),e+=this.uc);var n=Math.exp(-1*this.bl*i/this.al),s=.5*(n-1/n),l=.5*(n+1/n),c=Math.sin(this.bl*e/this.al),h=(c*Math.cos(this.gamma0)+s*Math.sin(this.gamma0))/l,d=Math.pow(this.el/Math.sqrt((1+h)/(1-h)),1/this.bl);return Math.abs(h-1)<u?(t.x=this.long0,t.y=a):Math.abs(h+1)<u?(t.x=this.long0,t.y=-1*a):(t.y=o(this.e,d),t.x=r(this.long0-Math.atan2(s*Math.cos(this.gamma0)-c*Math.sin(this.gamma0),Math.cos(this.bl*e/this.al))/this.bl)),t},e.names=["Hotine_Oblique_Mercator","Hotine Oblique Mercator","Hotine_Oblique_Mercator_Azimuth_Natural_Origin","Hotine_Oblique_Mercator_Azimuth_Center","omerc"]},function(t,e,i){var n=1e-10,r=i(25),o=i(28),a=Math.PI/2,s=i(27),u=i(26),l=i(29);e.init=function(){if(this.lat2||(this.lat2=this.lat1),this.k0||(this.k0=1),this.x0=this.x0||0,this.y0=this.y0||0,!(Math.abs(this.lat1+this.lat2)<n)){var t=this.b/this.a;this.e=Math.sqrt(1-t*t);var e=Math.sin(this.lat1),i=Math.cos(this.lat1),a=r(this.e,e,i),s=o(this.e,this.lat1,e),u=Math.sin(this.lat2),l=Math.cos(this.lat2),c=r(this.e,u,l),h=o(this.e,this.lat2,u),d=o(this.e,this.lat0,Math.sin(this.lat0));Math.abs(this.lat1-this.lat2)>n?this.ns=Math.log(a/c)/Math.log(s/h):this.ns=e,isNaN(this.ns)&&(this.ns=e),this.f0=a/(this.ns*Math.pow(s,this.ns)),this.rh=this.a*this.f0*Math.pow(d,this.ns),this.title||(this.title="Lambert Conformal Conic")}},e.forward=function(t){var e=t.x,i=t.y;Math.abs(2*Math.abs(i)-Math.PI)<=n&&(i=s(i)*(a-2*n));var r,l,c=Math.abs(Math.abs(i)-a);if(c>n)r=o(this.e,i,Math.sin(i)),l=this.a*this.f0*Math.pow(r,this.ns);else{if(c=i*this.ns,c<=0)return null;l=0}var h=this.ns*u(e-this.long0);return t.x=this.k0*(l*Math.sin(h))+this.x0,t.y=this.k0*(this.rh-l*Math.cos(h))+this.y0,t},e.inverse=function(t){var e,i,n,r,o,s=(t.x-this.x0)/this.k0,c=this.rh-(t.y-this.y0)/this.k0;this.ns>0?(e=Math.sqrt(s*s+c*c),i=1):(e=-Math.sqrt(s*s+c*c),i=-1);var h=0;if(0!==e&&(h=Math.atan2(i*s,i*c)),0!==e||this.ns>0){if(i=1/this.ns,n=Math.pow(e/(this.a*this.f0),i),r=l(this.e,n),r===-9999)return null}else r=-a;return o=u(h/this.ns+this.long0),t.x=o,t.y=r,t},e.names=["Lambert Tangential Conformal Conic Projection","Lambert_Conformal_Conic","Lambert_Conformal_Conic_2SP","lcc"]},function(t,e,i){var n=i(26);e.init=function(){this.a=6377397.155,this.es=.006674372230614,this.e=Math.sqrt(this.es),this.lat0||(this.lat0=.863937979737193),this.long0||(this.long0=.4334234309119251),this.k0||(this.k0=.9999),this.s45=.785398163397448,this.s90=2*this.s45,this.fi0=this.lat0,this.e2=this.es,this.e=Math.sqrt(this.e2),this.alfa=Math.sqrt(1+this.e2*Math.pow(Math.cos(this.fi0),4)/(1-this.e2)),this.uq=1.04216856380474,this.u0=Math.asin(Math.sin(this.fi0)/this.alfa),this.g=Math.pow((1+this.e*Math.sin(this.fi0))/(1-this.e*Math.sin(this.fi0)),this.alfa*this.e/2),this.k=Math.tan(this.u0/2+this.s45)/Math.pow(Math.tan(this.fi0/2+this.s45),this.alfa)*this.g,this.k1=this.k0,this.n0=this.a*Math.sqrt(1-this.e2)/(1-this.e2*Math.pow(Math.sin(this.fi0),2)),this.s0=1.37008346281555,this.n=Math.sin(this.s0),this.ro0=this.k1*this.n0/Math.tan(this.s0),this.ad=this.s90-this.uq},e.forward=function(t){var e,i,r,o,a,s,u,l=t.x,c=t.y,h=n(l-this.long0);return e=Math.pow((1+this.e*Math.sin(c))/(1-this.e*Math.sin(c)),this.alfa*this.e/2),i=2*(Math.atan(this.k*Math.pow(Math.tan(c/2+this.s45),this.alfa)/e)-this.s45),r=-h*this.alfa,o=Math.asin(Math.cos(this.ad)*Math.sin(i)+Math.sin(this.ad)*Math.cos(i)*Math.cos(r)),a=Math.asin(Math.cos(i)*Math.sin(r)/Math.cos(o)),s=this.n*a,u=this.ro0*Math.pow(Math.tan(this.s0/2+this.s45),this.n)/Math.pow(Math.tan(o/2+this.s45),this.n),t.y=u*Math.cos(s)/1,t.x=u*Math.sin(s)/1,this.czech||(t.y*=-1,t.x*=-1),t},e.inverse=function(t){var e,i,n,r,o,a,s,u,l=t.x;t.x=t.y,t.y=l,this.czech||(t.y*=-1,t.x*=-1),a=Math.sqrt(t.x*t.x+t.y*t.y),o=Math.atan2(t.y,t.x),r=o/Math.sin(this.s0),n=2*(Math.atan(Math.pow(this.ro0/a,1/this.n)*Math.tan(this.s0/2+this.s45))-this.s45),e=Math.asin(Math.cos(this.ad)*Math.sin(n)-Math.sin(this.ad)*Math.cos(n)*Math.cos(r)),i=Math.asin(Math.cos(n)*Math.sin(r)/Math.cos(e)),t.x=this.long0-i/this.alfa,s=e,u=0;var c=0;do t.y=2*(Math.atan(Math.pow(this.k,-1/this.alfa)*Math.pow(Math.tan(e/2+this.s45),1/this.alfa)*Math.pow((1+this.e*Math.sin(s))/(1-this.e*Math.sin(s)),this.e/2))-this.s45),Math.abs(s-t.y)<1e-10&&(u=1),s=t.y,c+=1;while(0===u&&c<15);return c>=15?null:t},e.names=["Krovak","krovak"]},function(t,e,i){var n=i(59),r=i(60),o=i(61),a=i(62),s=i(63),u=i(64),l=i(26),c=i(65),h=i(66),d=Math.PI/2,f=1e-10;e.init=function(){this.sphere||(this.e0=r(this.es),this.e1=o(this.es),this.e2=a(this.es),this.e3=s(this.es),this.ml0=this.a*n(this.e0,this.e1,this.e2,this.e3,this.lat0))},e.forward=function(t){var e,i,r=t.x,o=t.y;if(r=l(r-this.long0),this.sphere)e=this.a*Math.asin(Math.cos(o)*Math.sin(r)),i=this.a*(Math.atan2(Math.tan(o),Math.cos(r))-this.lat0);else{var a=Math.sin(o),s=Math.cos(o),c=u(this.a,this.e,a),h=Math.tan(o)*Math.tan(o),d=r*Math.cos(o),f=d*d,p=this.es*s*s/(1-this.es),m=this.a*n(this.e0,this.e1,this.e2,this.e3,o);e=c*d*(1-f*h*(1/6-(8-h+8*p)*f/120)),i=m-this.ml0+c*a/s*f*(.5+(5-h+6*p)*f/24)}return t.x=e+this.x0,t.y=i+this.y0,t},e.inverse=function(t){t.x-=this.x0,t.y-=this.y0;var e,i,n=t.x/this.a,r=t.y/this.a;if(this.sphere){var o=r+this.lat0;e=Math.asin(Math.sin(o)*Math.cos(n)),i=Math.atan2(Math.tan(n),Math.cos(o))}else{var a=this.ml0/this.a+r,s=h(a,this.e0,this.e1,this.e2,this.e3);if(Math.abs(Math.abs(s)-d)<=f)return t.x=this.long0,t.y=d,r<0&&(t.y*=-1),t;var p=u(this.a,this.e,Math.sin(s)),m=p*p*p/this.a/this.a*(1-this.es),g=Math.pow(Math.tan(s),2),v=n*this.a/p,y=v*v;e=s-p*Math.tan(s)/m*v*v*(.5-(1+3*g)*v*v/24),i=v*(1-y*(g/3+(1+3*g)*g*y/15))/Math.cos(s)}return t.x=l(i+this.long0),t.y=c(e),t},e.names=["Cassini","Cassini_Soldner","cass"]},function(t,e){t.exports=function(t,e,i,n,r){return t*r-e*Math.sin(2*r)+i*Math.sin(4*r)-n*Math.sin(6*r)}},function(t,e){t.exports=function(t){return 1-.25*t*(1+t/16*(3+1.25*t))}},function(t,e){t.exports=function(t){return.375*t*(1+.25*t*(1+.46875*t))}},function(t,e){t.exports=function(t){return.05859375*t*t*(1+.75*t)}},function(t,e){t.exports=function(t){return t*t*t*(35/3072)}},function(t,e){t.exports=function(t,e,i){var n=e*i;return t/Math.sqrt(1-n*n)}},function(t,e,i){var n=Math.PI/2,r=i(27);t.exports=function(t){return Math.abs(t)<n?t:t-r(t)*Math.PI}},function(t,e){t.exports=function(t,e,i,n,r){var o,a;o=t/e;for(var s=0;s<15;s++)if(a=(t-(e*o-i*Math.sin(2*o)+n*Math.sin(4*o)-r*Math.sin(6*o)))/(e-2*i*Math.cos(2*o)+4*n*Math.cos(4*o)-6*r*Math.cos(6*o)),o+=a,Math.abs(a)<=1e-10)return o;return NaN}},function(t,e,i){var n=Math.PI/2,r=Math.PI/4,o=1e-10,a=i(68),s=i(26);e.S_POLE=1,e.N_POLE=2,e.EQUIT=3,e.OBLIQ=4,e.init=function(){var t=Math.abs(this.lat0);if(Math.abs(t-n)<o?this.mode=this.lat0<0?this.S_POLE:this.N_POLE:Math.abs(t)<o?this.mode=this.EQUIT:this.mode=this.OBLIQ,this.es>0){var e;switch(this.qp=a(this.e,1),this.mmf=.5/(1-this.es),this.apa=this.authset(this.es),this.mode){case this.N_POLE:this.dd=1;break;case this.S_POLE:this.dd=1;break;case this.EQUIT:this.rq=Math.sqrt(.5*this.qp),this.dd=1/this.rq,this.xmf=1,this.ymf=.5*this.qp;break;case this.OBLIQ:this.rq=Math.sqrt(.5*this.qp),e=Math.sin(this.lat0),this.sinb1=a(this.e,e)/this.qp,this.cosb1=Math.sqrt(1-this.sinb1*this.sinb1),this.dd=Math.cos(this.lat0)/(Math.sqrt(1-this.es*e*e)*this.rq*this.cosb1),this.ymf=(this.xmf=this.rq)/this.dd,this.xmf*=this.dd}}else this.mode===this.OBLIQ&&(this.sinph0=Math.sin(this.lat0),this.cosph0=Math.cos(this.lat0))},e.forward=function(t){var e,i,u,l,c,h,d,f,p,m,g=t.x,v=t.y;if(g=s(g-this.long0),this.sphere){if(c=Math.sin(v),m=Math.cos(v),u=Math.cos(g),this.mode===this.OBLIQ||this.mode===this.EQUIT){if(i=this.mode===this.EQUIT?1+m*u:1+this.sinph0*c+this.cosph0*m*u,i<=o)return null;i=Math.sqrt(2/i),e=i*m*Math.sin(g),i*=this.mode===this.EQUIT?c:this.cosph0*c-this.sinph0*m*u}else if(this.mode===this.N_POLE||this.mode===this.S_POLE){if(this.mode===this.N_POLE&&(u=-u),Math.abs(v+this.phi0)<o)return null;i=r-.5*v,i=2*(this.mode===this.S_POLE?Math.cos(i):Math.sin(i)),e=i*Math.sin(g),i*=u}}else{switch(d=0,f=0,p=0,u=Math.cos(g),l=Math.sin(g),c=Math.sin(v),h=a(this.e,c),this.mode!==this.OBLIQ&&this.mode!==this.EQUIT||(d=h/this.qp,f=Math.sqrt(1-d*d)),this.mode){case this.OBLIQ:p=1+this.sinb1*d+this.cosb1*f*u;break;case this.EQUIT:p=1+f*u;break;case this.N_POLE:p=n+v,h=this.qp-h;break;case this.S_POLE:p=v-n,h=this.qp+h}if(Math.abs(p)<o)return null;switch(this.mode){case this.OBLIQ:case this.EQUIT:p=Math.sqrt(2/p),i=this.mode===this.OBLIQ?this.ymf*p*(this.cosb1*d-this.sinb1*f*u):(p=Math.sqrt(2/(1+f*u)))*d*this.ymf,e=this.xmf*p*f*l;break;case this.N_POLE:case this.S_POLE:h>=0?(e=(p=Math.sqrt(h))*l,i=u*(this.mode===this.S_POLE?p:-p)):e=i=0}}return t.x=this.a*e+this.x0,t.y=this.a*i+this.y0,t},e.inverse=function(t){t.x-=this.x0,t.y-=this.y0;var e,i,r,a,u,l,c,h=t.x/this.a,d=t.y/this.a;if(this.sphere){var f,p=0,m=0;if(f=Math.sqrt(h*h+d*d),i=.5*f,i>1)return null;switch(i=2*Math.asin(i),this.mode!==this.OBLIQ&&this.mode!==this.EQUIT||(m=Math.sin(i),p=Math.cos(i)),this.mode){case this.EQUIT:i=Math.abs(f)<=o?0:Math.asin(d*m/f),h*=m,d=p*f;break;case this.OBLIQ:i=Math.abs(f)<=o?this.phi0:Math.asin(p*this.sinph0+d*m*this.cosph0/f),h*=m*this.cosph0,d=(p-Math.sin(i)*this.sinph0)*f;break;case this.N_POLE:d=-d,i=n-i;break;case this.S_POLE:i-=n}e=0!==d||this.mode!==this.EQUIT&&this.mode!==this.OBLIQ?Math.atan2(h,d):0}else{if(c=0,this.mode===this.OBLIQ||this.mode===this.EQUIT){
-if(h/=this.dd,d*=this.dd,l=Math.sqrt(h*h+d*d),l<o)return t.x=0,t.y=this.phi0,t;a=2*Math.asin(.5*l/this.rq),r=Math.cos(a),h*=a=Math.sin(a),this.mode===this.OBLIQ?(c=r*this.sinb1+d*a*this.cosb1/l,u=this.qp*c,d=l*this.cosb1*r-d*this.sinb1*a):(c=d*a/l,u=this.qp*c,d=l*r)}else if(this.mode===this.N_POLE||this.mode===this.S_POLE){if(this.mode===this.N_POLE&&(d=-d),u=h*h+d*d,!u)return t.x=0,t.y=this.phi0,t;c=1-u/this.qp,this.mode===this.S_POLE&&(c=-c)}e=Math.atan2(h,d),i=this.authlat(Math.asin(c),this.apa)}return t.x=s(this.long0+e),t.y=i,t},e.P00=.3333333333333333,e.P01=.17222222222222222,e.P02=.10257936507936508,e.P10=.06388888888888888,e.P11=.0664021164021164,e.P20=.016415012942191543,e.authset=function(t){var e,i=[];return i[0]=t*this.P00,e=t*t,i[0]+=e*this.P01,i[1]=e*this.P10,e*=t,i[0]+=e*this.P02,i[1]+=e*this.P11,i[2]=e*this.P20,i},e.authlat=function(t,e){var i=t+t;return t+e[0]*Math.sin(i)+e[1]*Math.sin(i+i)+e[2]*Math.sin(i+i+i)},e.names=["Lambert Azimuthal Equal Area","Lambert_Azimuthal_Equal_Area","laea"]},function(t,e){t.exports=function(t,e){var i;return t>1e-7?(i=t*e,(1-t*t)*(e/(1-i*i)-.5/t*Math.log((1-i)/(1+i)))):2*e}},function(t,e,i){var n=1e-10,r=i(25),o=i(68),a=i(26),s=i(70);e.init=function(){Math.abs(this.lat1+this.lat2)<n||(this.temp=this.b/this.a,this.es=1-Math.pow(this.temp,2),this.e3=Math.sqrt(this.es),this.sin_po=Math.sin(this.lat1),this.cos_po=Math.cos(this.lat1),this.t1=this.sin_po,this.con=this.sin_po,this.ms1=r(this.e3,this.sin_po,this.cos_po),this.qs1=o(this.e3,this.sin_po,this.cos_po),this.sin_po=Math.sin(this.lat2),this.cos_po=Math.cos(this.lat2),this.t2=this.sin_po,this.ms2=r(this.e3,this.sin_po,this.cos_po),this.qs2=o(this.e3,this.sin_po,this.cos_po),this.sin_po=Math.sin(this.lat0),this.cos_po=Math.cos(this.lat0),this.t3=this.sin_po,this.qs0=o(this.e3,this.sin_po,this.cos_po),Math.abs(this.lat1-this.lat2)>n?this.ns0=(this.ms1*this.ms1-this.ms2*this.ms2)/(this.qs2-this.qs1):this.ns0=this.con,this.c=this.ms1*this.ms1+this.ns0*this.qs1,this.rh=this.a*Math.sqrt(this.c-this.ns0*this.qs0)/this.ns0)},e.forward=function(t){var e=t.x,i=t.y;this.sin_phi=Math.sin(i),this.cos_phi=Math.cos(i);var n=o(this.e3,this.sin_phi,this.cos_phi),r=this.a*Math.sqrt(this.c-this.ns0*n)/this.ns0,s=this.ns0*a(e-this.long0),u=r*Math.sin(s)+this.x0,l=this.rh-r*Math.cos(s)+this.y0;return t.x=u,t.y=l,t},e.inverse=function(t){var e,i,n,r,o,s;return t.x-=this.x0,t.y=this.rh-t.y+this.y0,this.ns0>=0?(e=Math.sqrt(t.x*t.x+t.y*t.y),n=1):(e=-Math.sqrt(t.x*t.x+t.y*t.y),n=-1),r=0,0!==e&&(r=Math.atan2(n*t.x,n*t.y)),n=e*this.ns0/this.a,this.sphere?s=Math.asin((this.c-n*n)/(2*this.ns0)):(i=(this.c-n*n)/this.ns0,s=this.phi1z(this.e3,i)),o=a(r/this.ns0+this.long0),t.x=o,t.y=s,t},e.phi1z=function(t,e){var i,r,o,a,u,l=s(.5*e);if(t<n)return l;for(var c=t*t,h=1;h<=25;h++)if(i=Math.sin(l),r=Math.cos(l),o=t*i,a=1-o*o,u=.5*a*a/r*(e/(1-c)-i/a+.5/t*Math.log((1-o)/(1+o))),l+=u,Math.abs(u)<=1e-7)return l;return null},e.names=["Albers_Conic_Equal_Area","Albers","aea"]},function(t,e){t.exports=function(t){return Math.abs(t)>1&&(t=t>1?1:-1),Math.asin(t)}},function(t,e,i){var n=i(26),r=1e-10,o=i(70);e.init=function(){this.sin_p14=Math.sin(this.lat0),this.cos_p14=Math.cos(this.lat0),this.infinity_dist=1e3*this.a,this.rc=1},e.forward=function(t){var e,i,o,a,s,u,l,c,h=t.x,d=t.y;return o=n(h-this.long0),e=Math.sin(d),i=Math.cos(d),a=Math.cos(o),u=this.sin_p14*e+this.cos_p14*i*a,s=1,u>0||Math.abs(u)<=r?(l=this.x0+this.a*s*i*Math.sin(o)/u,c=this.y0+this.a*s*(this.cos_p14*e-this.sin_p14*i*a)/u):(l=this.x0+this.infinity_dist*i*Math.sin(o),c=this.y0+this.infinity_dist*(this.cos_p14*e-this.sin_p14*i*a)),t.x=l,t.y=c,t},e.inverse=function(t){var e,i,r,a,s,u;return t.x=(t.x-this.x0)/this.a,t.y=(t.y-this.y0)/this.a,t.x/=this.k0,t.y/=this.k0,(e=Math.sqrt(t.x*t.x+t.y*t.y))?(a=Math.atan2(e,this.rc),i=Math.sin(a),r=Math.cos(a),u=o(r*this.sin_p14+t.y*i*this.cos_p14/e),s=Math.atan2(t.x*i,e*this.cos_p14*r-t.y*this.sin_p14*i),s=n(this.long0+s)):(u=this.phic0,s=0),t.x=s,t.y=u,t},e.names=["gnom"]},function(t,e,i){var n=i(26),r=i(68),o=i(25),a=i(73);e.init=function(){this.sphere||(this.k0=o(this.e,Math.sin(this.lat_ts),Math.cos(this.lat_ts)))},e.forward=function(t){var e,i,o=t.x,a=t.y,s=n(o-this.long0);if(this.sphere)e=this.x0+this.a*s*Math.cos(this.lat_ts),i=this.y0+this.a*Math.sin(a)/Math.cos(this.lat_ts);else{var u=r(this.e,Math.sin(a));e=this.x0+this.a*this.k0*s,i=this.y0+this.a*u*.5/this.k0}return t.x=e,t.y=i,t},e.inverse=function(t){t.x-=this.x0,t.y-=this.y0;var e,i;return this.sphere?(e=n(this.long0+t.x/this.a/Math.cos(this.lat_ts)),i=Math.asin(t.y/this.a*Math.cos(this.lat_ts))):(i=a(this.e,2*t.y*this.k0/this.a),e=n(this.long0+t.x/(this.a*this.k0))),t.x=e,t.y=i,t},e.names=["cea"]},function(t,e){var i=Math.PI/2;t.exports=function(t,e){var n=1-(1-t*t)/(2*t)*Math.log((1-t)/(1+t));if(Math.abs(Math.abs(e)-n)<1e-6)return e<0?-1*i:i;for(var r,o,a,s,u=Math.asin(.5*e),l=0;l<30;l++)if(o=Math.sin(u),a=Math.cos(u),s=t*o,r=Math.pow(1-s*s,2)/(2*a)*(e/(1-t*t)-o/(1-s*s)+.5/t*Math.log((1-s)/(1+s))),u+=r,Math.abs(r)<=1e-10)return u;return NaN}},function(t,e,i){var n=i(26),r=i(65);e.init=function(){this.x0=this.x0||0,this.y0=this.y0||0,this.lat0=this.lat0||0,this.long0=this.long0||0,this.lat_ts=this.lat_ts||0,this.title=this.title||"Equidistant Cylindrical (Plate Carre)",this.rc=Math.cos(this.lat_ts)},e.forward=function(t){var e=t.x,i=t.y,o=n(e-this.long0),a=r(i-this.lat0);return t.x=this.x0+this.a*o*this.rc,t.y=this.y0+this.a*a,t},e.inverse=function(t){var e=t.x,i=t.y;return t.x=n(this.long0+(e-this.x0)/(this.a*this.rc)),t.y=r(this.lat0+(i-this.y0)/this.a),t},e.names=["Equirectangular","Equidistant_Cylindrical","eqc"]},function(t,e,i){var n=i(60),r=i(61),o=i(62),a=i(63),s=i(26),u=i(65),l=i(59),c=1e-10,h=i(64),d=20;e.init=function(){this.temp=this.b/this.a,this.es=1-Math.pow(this.temp,2),this.e=Math.sqrt(this.es),this.e0=n(this.es),this.e1=r(this.es),this.e2=o(this.es),this.e3=a(this.es),this.ml0=this.a*l(this.e0,this.e1,this.e2,this.e3,this.lat0)},e.forward=function(t){var e,i,n,r=t.x,o=t.y,a=s(r-this.long0);if(n=a*Math.sin(o),this.sphere)Math.abs(o)<=c?(e=this.a*a,i=-1*this.a*this.lat0):(e=this.a*Math.sin(n)/Math.tan(o),i=this.a*(u(o-this.lat0)+(1-Math.cos(n))/Math.tan(o)));else if(Math.abs(o)<=c)e=this.a*a,i=-1*this.ml0;else{var d=h(this.a,this.e,Math.sin(o))/Math.tan(o);e=d*Math.sin(n),i=this.a*l(this.e0,this.e1,this.e2,this.e3,o)-this.ml0+d*(1-Math.cos(n))}return t.x=e+this.x0,t.y=i+this.y0,t},e.inverse=function(t){var e,i,n,r,o,a,u,h,f;if(n=t.x-this.x0,r=t.y-this.y0,this.sphere)if(Math.abs(r+this.a*this.lat0)<=c)e=s(n/this.a+this.long0),i=0;else{a=this.lat0+r/this.a,u=n*n/this.a/this.a+a*a,h=a;var p;for(o=d;o;--o)if(p=Math.tan(h),f=-1*(a*(h*p+1)-h-.5*(h*h+u)*p)/((h-a)/p-1),h+=f,Math.abs(f)<=c){i=h;break}e=s(this.long0+Math.asin(n*Math.tan(h)/this.a)/Math.sin(i))}else if(Math.abs(r+this.ml0)<=c)i=0,e=s(this.long0+n/this.a);else{a=(this.ml0+r)/this.a,u=n*n/this.a/this.a+a*a,h=a;var m,g,v,y,x;for(o=d;o;--o)if(x=this.e*Math.sin(h),m=Math.sqrt(1-x*x)*Math.tan(h),g=this.a*l(this.e0,this.e1,this.e2,this.e3,h),v=this.e0-2*this.e1*Math.cos(2*h)+4*this.e2*Math.cos(4*h)-6*this.e3*Math.cos(6*h),y=g/this.a,f=(a*(m*y+1)-y-.5*m*(y*y+u))/(this.es*Math.sin(2*h)*(y*y+u-2*a*y)/(4*m)+(a-y)*(m*v-2/Math.sin(2*h))-v),h-=f,Math.abs(f)<=c){i=h;break}m=Math.sqrt(1-this.es*Math.pow(Math.sin(i),2))*Math.tan(i),e=s(this.long0+Math.asin(n*m/this.a)/Math.sin(i))}return t.x=e,t.y=i,t},e.names=["Polyconic","poly"]},function(t,e){var i=484813681109536e-20;e.iterations=1,e.init=function(){this.A=[],this.A[1]=.6399175073,this.A[2]=-.1358797613,this.A[3]=.063294409,this.A[4]=-.02526853,this.A[5]=.0117879,this.A[6]=-.0055161,this.A[7]=.0026906,this.A[8]=-.001333,this.A[9]=67e-5,this.A[10]=-34e-5,this.B_re=[],this.B_im=[],this.B_re[1]=.7557853228,this.B_im[1]=0,this.B_re[2]=.249204646,this.B_im[2]=.003371507,this.B_re[3]=-.001541739,this.B_im[3]=.04105856,this.B_re[4]=-.10162907,this.B_im[4]=.01727609,this.B_re[5]=-.26623489,this.B_im[5]=-.36249218,this.B_re[6]=-.6870983,this.B_im[6]=-1.1651967,this.C_re=[],this.C_im=[],this.C_re[1]=1.3231270439,this.C_im[1]=0,this.C_re[2]=-.577245789,this.C_im[2]=-.007809598,this.C_re[3]=.508307513,this.C_im[3]=-.112208952,this.C_re[4]=-.15094762,this.C_im[4]=.18200602,this.C_re[5]=1.01418179,this.C_im[5]=1.64497696,this.C_re[6]=1.9660549,this.C_im[6]=2.5127645,this.D=[],this.D[1]=1.5627014243,this.D[2]=.5185406398,this.D[3]=-.03333098,this.D[4]=-.1052906,this.D[5]=-.0368594,this.D[6]=.007317,this.D[7]=.0122,this.D[8]=.00394,this.D[9]=-.0013},e.forward=function(t){var e,n=t.x,r=t.y,o=r-this.lat0,a=n-this.long0,s=o/i*1e-5,u=a,l=1,c=0;for(e=1;e<=10;e++)l*=s,c+=this.A[e]*l;var h,d,f=c,p=u,m=1,g=0,v=0,y=0;for(e=1;e<=6;e++)h=m*f-g*p,d=g*f+m*p,m=h,g=d,v=v+this.B_re[e]*m-this.B_im[e]*g,y=y+this.B_im[e]*m+this.B_re[e]*g;return t.x=y*this.a+this.x0,t.y=v*this.a+this.y0,t},e.inverse=function(t){var e,n,r,o=t.x,a=t.y,s=o-this.x0,u=a-this.y0,l=u/this.a,c=s/this.a,h=1,d=0,f=0,p=0;for(e=1;e<=6;e++)n=h*l-d*c,r=d*l+h*c,h=n,d=r,f=f+this.C_re[e]*h-this.C_im[e]*d,p=p+this.C_im[e]*h+this.C_re[e]*d;for(var m=0;m<this.iterations;m++){var g,v,y=f,x=p,_=l,b=c;for(e=2;e<=6;e++)g=y*f-x*p,v=x*f+y*p,y=g,x=v,_+=(e-1)*(this.B_re[e]*y-this.B_im[e]*x),b+=(e-1)*(this.B_im[e]*y+this.B_re[e]*x);y=1,x=0;var w=this.B_re[1],M=this.B_im[1];for(e=2;e<=6;e++)g=y*f-x*p,v=x*f+y*p,y=g,x=v,w+=e*(this.B_re[e]*y-this.B_im[e]*x),M+=e*(this.B_im[e]*y+this.B_re[e]*x);var T=w*w+M*M;f=(_*w+b*M)/T,p=(b*w-_*M)/T}var A=f,E=p,C=1,S=0;for(e=1;e<=9;e++)C*=A,S+=this.D[e]*C;var P=this.lat0+S*i*1e5,R=this.long0+E;return t.x=R,t.y=P,t},e.names=["New_Zealand_Map_Grid","nzmg"]},function(t,e,i){var n=i(26);e.init=function(){},e.forward=function(t){var e=t.x,i=t.y,r=n(e-this.long0),o=this.x0+this.a*r,a=this.y0+this.a*Math.log(Math.tan(Math.PI/4+i/2.5))*1.25;return t.x=o,t.y=a,t},e.inverse=function(t){t.x-=this.x0,t.y-=this.y0;var e=n(this.long0+t.x/this.a),i=2.5*(Math.atan(Math.exp(.8*t.y/this.a))-Math.PI/4);return t.x=e,t.y=i,t},e.names=["Miller_Cylindrical","mill"]},function(t,e,i){var n=i(26),r=i(65),o=i(45),a=20,s=i(46),u=i(47),l=Math.PI/2,c=1e-10,h=i(70);e.init=function(){this.sphere?(this.n=1,this.m=0,this.es=0,this.C_y=Math.sqrt((this.m+1)/this.n),this.C_x=this.C_y/(this.m+1)):this.en=o(this.es)},e.forward=function(t){var e,i,r=t.x,o=t.y;if(r=n(r-this.long0),this.sphere){if(this.m)for(var u=this.n*Math.sin(o),l=a;l;--l){var h=(this.m*o+Math.sin(o)-u)/(this.m+Math.cos(o));if(o-=h,Math.abs(h)<c)break}else o=1!==this.n?Math.asin(this.n*Math.sin(o)):o;e=this.a*this.C_x*r*(this.m+Math.cos(o)),i=this.a*this.C_y*o}else{var d=Math.sin(o),f=Math.cos(o);i=this.a*s(o,d,f,this.en),e=this.a*r*f/Math.sqrt(1-this.es*d*d)}return t.x=e,t.y=i,t},e.inverse=function(t){var e,i,o,a;return t.x-=this.x0,o=t.x/this.a,t.y-=this.y0,e=t.y/this.a,this.sphere?(e/=this.C_y,o/=this.C_x*(this.m+Math.cos(e)),this.m?e=h((this.m*e+Math.sin(e))/this.n):1!==this.n&&(e=h(Math.sin(e)/this.n)),o=n(o+this.long0),e=r(e)):(e=u(t.y/this.a,this.es,this.en),a=Math.abs(e),a<l?(a=Math.sin(e),i=this.long0+t.x*Math.sqrt(1-this.es*a*a)/(this.a*Math.cos(e)),o=n(i)):a-c<l&&(o=this.long0)),t.x=o,t.y=e,t},e.names=["Sinusoidal","sinu"]},function(t,e,i){var n=i(26),r=1e-10;e.init=function(){},e.forward=function(t){for(var e=t.x,i=t.y,o=n(e-this.long0),a=i,s=Math.PI*Math.sin(i),u=0;!0;u++){var l=-(a+Math.sin(a)-s)/(1+Math.cos(a));if(a+=l,Math.abs(l)<r)break}a/=2,Math.PI/2-Math.abs(i)<r&&(o=0);var c=.900316316158*this.a*o*Math.cos(a)+this.x0,h=1.4142135623731*this.a*Math.sin(a)+this.y0;return t.x=c,t.y=h,t},e.inverse=function(t){var e,i;t.x-=this.x0,t.y-=this.y0,i=t.y/(1.4142135623731*this.a),Math.abs(i)>.999999999999&&(i=.999999999999),e=Math.asin(i);var r=n(this.long0+t.x/(.900316316158*this.a*Math.cos(e)));r<-Math.PI&&(r=-Math.PI),r>Math.PI&&(r=Math.PI),i=(2*e+Math.sin(2*e))/Math.PI,Math.abs(i)>1&&(i=1);var o=Math.asin(i);return t.x=r,t.y=o,t},e.names=["Mollweide","moll"]},function(t,e,i){var n=i(60),r=i(61),o=i(62),a=i(63),s=i(25),u=i(59),l=i(26),c=i(65),h=i(66),d=1e-10;e.init=function(){Math.abs(this.lat1+this.lat2)<d||(this.lat2=this.lat2||this.lat1,this.temp=this.b/this.a,this.es=1-Math.pow(this.temp,2),this.e=Math.sqrt(this.es),this.e0=n(this.es),this.e1=r(this.es),this.e2=o(this.es),this.e3=a(this.es),this.sinphi=Math.sin(this.lat1),this.cosphi=Math.cos(this.lat1),this.ms1=s(this.e,this.sinphi,this.cosphi),this.ml1=u(this.e0,this.e1,this.e2,this.e3,this.lat1),Math.abs(this.lat1-this.lat2)<d?this.ns=this.sinphi:(this.sinphi=Math.sin(this.lat2),this.cosphi=Math.cos(this.lat2),this.ms2=s(this.e,this.sinphi,this.cosphi),this.ml2=u(this.e0,this.e1,this.e2,this.e3,this.lat2),this.ns=(this.ms1-this.ms2)/(this.ml2-this.ml1)),this.g=this.ml1+this.ms1/this.ns,this.ml0=u(this.e0,this.e1,this.e2,this.e3,this.lat0),this.rh=this.a*(this.g-this.ml0))},e.forward=function(t){var e,i=t.x,n=t.y;if(this.sphere)e=this.a*(this.g-n);else{var r=u(this.e0,this.e1,this.e2,this.e3,n);e=this.a*(this.g-r)}var o=this.ns*l(i-this.long0),a=this.x0+e*Math.sin(o),s=this.y0+this.rh-e*Math.cos(o);return t.x=a,t.y=s,t},e.inverse=function(t){t.x-=this.x0,t.y=this.rh-t.y+this.y0;var e,i,n,r;this.ns>=0?(i=Math.sqrt(t.x*t.x+t.y*t.y),e=1):(i=-Math.sqrt(t.x*t.x+t.y*t.y),e=-1);var o=0;if(0!==i&&(o=Math.atan2(e*t.x,e*t.y)),this.sphere)return r=l(this.long0+o/this.ns),n=c(this.g-i/this.a),t.x=r,t.y=n,t;var a=this.g-i/this.a;return n=h(a,this.e0,this.e1,this.e2,this.e3),r=l(this.long0+o/this.ns),t.x=r,t.y=n,t},e.names=["Equidistant_Conic","eqdc"]},function(t,e,i){var n=i(26),r=Math.PI/2,o=1e-10,a=i(70);e.init=function(){this.R=this.a},e.forward=function(t){var e,i,s=t.x,u=t.y,l=n(s-this.long0);Math.abs(u)<=o&&(e=this.x0+this.R*l,i=this.y0);var c=a(2*Math.abs(u/Math.PI));(Math.abs(l)<=o||Math.abs(Math.abs(u)-r)<=o)&&(e=this.x0,i=u>=0?this.y0+Math.PI*this.R*Math.tan(.5*c):this.y0+Math.PI*this.R*-Math.tan(.5*c));var h=.5*Math.abs(Math.PI/l-l/Math.PI),d=h*h,f=Math.sin(c),p=Math.cos(c),m=p/(f+p-1),g=m*m,v=m*(2/f-1),y=v*v,x=Math.PI*this.R*(h*(m-y)+Math.sqrt(d*(m-y)*(m-y)-(y+d)*(g-y)))/(y+d);l<0&&(x=-x),e=this.x0+x;var _=d+m;return x=Math.PI*this.R*(v*_-h*Math.sqrt((y+d)*(d+1)-_*_))/(y+d),i=u>=0?this.y0+x:this.y0-x,t.x=e,t.y=i,t},e.inverse=function(t){var e,i,r,a,s,u,l,c,h,d,f,p,m;return t.x-=this.x0,t.y-=this.y0,f=Math.PI*this.R,r=t.x/f,a=t.y/f,s=r*r+a*a,u=-Math.abs(a)*(1+s),l=u-2*a*a+r*r,c=-2*u+1+2*a*a+s*s,m=a*a/c+(2*l*l*l/c/c/c-9*u*l/c/c)/27,h=(u-l*l/3/c)/c,d=2*Math.sqrt(-h/3),f=3*m/h/d,Math.abs(f)>1&&(f=f>=0?1:-1),p=Math.acos(f)/3,i=t.y>=0?(-d*Math.cos(p+Math.PI/3)-l/3/c)*Math.PI:-(-d*Math.cos(p+Math.PI/3)-l/3/c)*Math.PI,e=Math.abs(r)<o?this.long0:n(this.long0+Math.PI*(s-1+Math.sqrt(1+2*(r*r-a*a)+s*s))/2/r),t.x=e,t.y=i,t},e.names=["Van_der_Grinten_I","VanDerGrinten","vandg"]},function(t,e,i){var 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RegExp("^\\s*rgba?\\(\\s*("+p.cssNumberRegex+")\\s*(%?)\\s*,?\\s*("+p.cssNumberRegex+")\\s*(%?)\\s*,?\\s*("+p.cssNumberRegex+")\\s*(%?)\\s*([/,]?\\s*("+p.cssNumberRegex+")\\s*(%?)\\s*)?\\)\\s*$"),process:function(t,e){return t={r:Math.min(1,Math.max(0,+e[1]/(e[2]?100:255))),g:Math.min(1,Math.max(0,+e[3]/(e[4]?100:255))),b:Math.min(1,Math.max(0,+e[5]/(e[6]?100:255)))},e[7]&&(t.a=Math.min(1,Math.max(0,+e[8]/(e[9]?100:1)))),t}},{name:"hsl",regex:new RegExp("^\\s*hsla?\\(\\s*("+p.cssNumberRegex+")\\s*(deg|grad|rad|turn)?\\s*,?\\s*("+p.cssNumberRegex+")\\s*%\\s*,?\\s*("+p.cssNumberRegex+")\\s*%\\s*([/,]?\\s*("+p.cssNumberRegex+")\\s*(%?)\\s*)?\\)\\s*$"),process:function(t,e){var i=function(t,e,i){return i-=Math.floor(i),6*i<1?t+(e-t)*i*6:6*i<3?e:6*i<4?t+(e-t)*(2/3-i)*6:t},n=+e[1]/(p.cssAngleUnitsBase[e[2]]||360),r=Math.min(1,Math.max(0,+e[3]/100)),o=Math.min(1,Math.max(0,+e[4]/100)),a=o<=.5?o*(r+1):o+r-o*r,s=2*o-a;return t={r:i(s,a,n+1/3),g:i(s,a,n),b:i(s,a,n-1/3)},e[5]&&(t.a=Math.min(1,Math.max(0,+e[6]/(e[7]?100:1)))),t}}],o.extend(p,a,s)},function(t,e){/**
-	 * Based on the following jquery throttle / debounce plugin:
-	 *
-	 * jQuery throttle / debounce - v1.1 - 3/7/2010
-	 * http://benalman.com/projects/jquery-throttle-debounce-plugin/
-	 *
-	 * @copyright 2010 "Cowboy" Ben Alman
-	 * Dual licensed under the MIT and GPL licenses.
-	 * http://benalman.com/about/license/
-	 *
-	 * The implementation included here is modified to support a callback
-	 * method that can accumulate values between actual invocations of
-	 * the throttled method.
-	 */
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t=i.m_camera.directionOfProjection(),e=i.m_camera.bounds(),n=[(e[0]+e[1])/2,(e[2]+e[3])/2,(e[4]+e[5])/2],r=[e[1]-e[0],e[3]-e[2],e[5]-e[4]],o=0,a=i.m_camera.viewAspect(),u=i.m_camera.viewAngle(),l=null,c=null;o=r[0]>r[1]?r[0]>r[2]?r[0]/2:r[2]/2:r[1]>r[2]?r[1]/2:r[2]/2,u=a>=1?2*Math.atan(Math.tan(.5*u)/a):2*Math.atan(Math.tan(.5*u)*a),l=o/Math.sin(.5*u),c=i.m_camera.viewUpDirection(),Math.abs(s.dot(c,t))>.999&&i.m_camera.setViewUpDirection(-c[2],c[0],c[1]),i.m_camera.setFocalPoint(n[0],n[1],n[2]),i.m_camera.setPosition(n[0]+l*-t[0],n[1]+l*-t[1],n[2]+l*-t[2]),i.resetCameraClippingRange(e)},this.hasValidBounds=function(t){return t[0]!==Number.MAX_VALUE&&t[1]!==-Number.MAX_VALUE&&t[2]!==Number.MAX_VALUE&&t[3]!==-Number.MAX_VALUE&&t[4]!==Number.MAX_VALUE&&t[5]!==-Number.MAX_VALUE},this.resetCameraClippingRange=function(t){if("undefined"==typeof t&&(i.m_camera.computeBounds(),t=i.m_camera.bounds()),i.hasValidBounds(t)){var e=i.m_camera.viewPlaneNormal(),n=i.m_camera.position(),r=-e[0],o=-e[1],a=-e[2],s=-(r*n[0]+o*n[1]+a*n[2]),l=u.create(),c=null,h=null,d=null,f=null;if(i.m_resetClippingRange){for(l[0]=r*t[0]+o*t[2]+a*t[4]+s,l[1]=1e-18,f=0;f<2;f+=1)for(d=0;d<2;d+=1)for(h=0;h<2;h+=1)c=r*t[h]+o*t[2+d]+a*t[4+f]+s,l[0]=c<l[0]?c:l[0],l[1]=c>l[1]?c:l[1];l[0]<0&&(l[0]=0),l[0]=.99*l[0]-.5*(l[1]-l[0]),l[1]=1.01*l[1]+.5*(l[1]-l[0]),l[0]=l[0]>=l[1]?.01*l[1]:l[0],i.m_nearClippingPlaneTolerance||(i.m_nearClippingPlaneTolerance=.01,i.m_depthBits&&i.m_depthBits>16&&(i.m_nearClippingPlaneTolerance=.001)),l[0]<i.m_nearClippingPlaneTolerance*l[1]&&(l[0]=i.m_nearClippingPlaneTolerance*l[1]),i.m_camera.setClippingRange(l[0],l[1])}}},this.resize=function(t,e){t&&e&&i.positionAndResize(i.m_x,i.m_y,t,e)},this.positionAndResize=function(t,e,n,r){var o;if(t<0||e<0||n<=0||r<=0)return void console.log("[error] Invalid position and resize values",t,e,n,r);if(i.m_resizable&&(i.m_width=n,i.m_height=r,i.m_camera.setViewAspect(n/r),i.m_camera.setParallelExtents({width:n,height:r}),i.modified()),i.m_renderPasses)for(o=0;o<i.m_renderPasses.length;o+=1)i.m_renderPasses[o].resize(n,r),i.m_renderPasses[o].renderer().positionAndResize(t,e,n,r)},this.addActor=function(t){return t instanceof e.actor&&(i.m_sceneRoot.addChild(t),i.modified(),!0)},this.hasActor=function(t){return i.m_sceneRoot.hasChild(t)},this.addActors=function(t){var e=null;if(t instanceof Array){for(e=0;e<t.length;e+=1)i.m_sceneRoot.addChild(t[e]);i.modified()}},this.removeActor=function(t){return i.m_sceneRoot.children().indexOf(t)!==-1&&(t.mapper()&&(t.mapper().deleteVertexBufferObjects(),t.mapper().modified()),i.m_sceneRoot.removeChild(t),i.modified(),!0)},this.removeActors=function(t){if(!(t instanceof Array))return!1;var e;for(e=0;e<t.length;e+=1)i.m_sceneRoot.removeChild(t[e]);return i.modified(),!0},this.removeAllActors=function(){return i.m_sceneRoot.removeChildren()},this.worldToDisplay=function(t,e,i,n,r){var s=o.create(),u=null,l=null,c=null,h=null,d=null;return o.multiply(s,i,e),d=a.create(),a.transformMat4(d,t,s),0!==d[3]&&(d[0]=d[0]/d[3],d[1]=d[1]/d[3],d[2]=d[2]/d[3],d[3]=1),u=(d[0]+1)/2*n,l=(1-d[1])/2*r,c=d[2],h=d[3],a.fromValues(u,l,c,h)},this.displayToWorld=function(t,e,i,n,r){var s=2*t[0]/n-1,u=-(2*t[1]/r)+1,l=t[2],c=o.create(),h=null;return o.multiply(c,i,e),o.invert(c,c),h=a.fromValues(s,u,l,1),a.transformMat4(h,h,c),0!==h[3]&&(h[0]=h[0]/h[3],h[1]=h[1]/h[3],h[2]=h[2]/h[3],h[3]=1),h},this.focusDisplayPoint=function(){var t=i.m_camera.focalPoint(),e=a.fromValues(t[0],t[1],t[2],1);return i.worldToDisplay(e,i.m_camera.viewMatrix(),i.m_camera.projectionMatrix(),i.m_width,i.m_height)},this.resetScene=function(){return i.m_resetScene},this.setResetScene=function(t){i.m_resetScene!==t&&(i.m_resetScene=t,i.modified())},this.resetClippingRange=function(){return i.m_resetClippingRange},this.setResetClippingRange=function(t){i.m_resetClippingRange!==t&&(i.m_resetClippingRange=t,i.modified())},this.addRenderPass=function(t){var e;if(i.m_renderPasses)for(e=0;e<i.m_renderPasses.length;e+=1)if(t===i.m_renderPasses[e])return;i.m_renderPasses=[],i.m_renderPasses.push(t)},this.removeRenderPass=function(t){t=t},this._cleanup=function(t){for(var e=i.m_sceneRoot.children(),n=0;n<e.length;n+=1){var r=e[n];r.material()._cleanup(t),r.mapper()._cleanup(t)}i.m_sceneRoot.removeChildren()},i},inherit(e.renderer,e.graphicsObject),e.renderWindow=function(t){"use strict";if(!(this instanceof e.renderWindow))return new e.renderWindow(t);e.graphicsObject.call(this);var i=this,n=0,r=0,o=400,s=400,u=t,l=null,c=[],h=null;return this.windowSize=function(){return[o,s]},this.setWindowSize=function(t,e){return(o!==t||s!==e)&&(o=t,s=e,i.modified(),!0)},this.windowPosition=function(){return[n,r]},this.setWindowPosition=function(t,e){return(n!==t||r!==e)&&(n=t,r=e,i.modified(),!0)},this.renderers=function(){return c},this.activeRenderer=function(){return l},this.addRenderer=function(t){return i.hasRenderer(t)===!1&&(c.push(t),t.setRenderWindow(i),null===l&&(l=t),0!==t.layer()&&t.camera().setClearMask(e.GL.DepthBufferBit),i.modified(),!0)},this.removeRenderer=function(t){var e=c.indexOf(t);return e!==-1&&(l===t&&(l=null),c.splice(e,1),i.modified(),!0)},this.getRenderer=function(t){return t<c.length?c[t]:(console.log("[WARNING] Out of index array"),null)},this.hasRenderer=function(t){var e;for(e=0;e<c.length;e+=1)if(t===c[e])return!0;return!1},this.resize=function(t,e){i.positionAndResize(n,r,t,e),i.modified()},this.positionAndResize=function(t,e,a,u){n=t,r=e,o=a,s=u;var l;for(l=0;l<c.length;l+=1)c[l].positionAndResize(n,r,o,s);i.modified()},this._setup=function(t){t=t,h=null;try{h=u.getContext("webgl")||u.getContext("experimental-webgl");var e;for(e=0;e<c.length;e+=1)(c[e].width()>o||0===c[e].width()||c[e].height()>s||0===c[e].height())&&c[e].resize(n,r,o,s);return!0}catch(t){}return h||console("[ERROR] Unable to initialize WebGL. Your browser may not support it."),!1},this.context=function(){return h},this._cleanup=function(t){var i;for(i=0;i<c.length;i+=1)c[i]._cleanup(t);e.clearCachedShaders(t?t.m_context:null)},this.render=function(){var t;for(c.sort(function(t,e){return t.layer()-e.layer()}),t=0;t<c.length;t+=1)c[t].render()},this.focusDisplayPoint=function(){return l.focusDisplayPoint()},this.displayToWorld=function(t,e,i,n){n=void 0===n?n=l:n;var r=n.camera();return i||(i=n.focusDisplayPoint()),n.displayToWorld(a.fromValues(t,e,i[2],1),r.viewMatrix(),r.projectionMatrix(),o,s)},this.worldToDisplay=function(t,e,i,n){n=void 0===n?n=l:n;var r=n.camera();return n.worldToDisplay(a.fromValues(t,e,i,1),r.viewMatrix(),r.projectionMatrix(),o,s)},i},inherit(e.renderWindow,e.graphicsObject),e.camera=function(t){"use strict";if(!(this instanceof e.camera))return new e.camera(t);e.groupNode.call(this),t=t||{};var i=30*Math.PI/180,n=a.fromValues(0,0,1,1),r=a.fromValues(0,0,0,1),u=s.fromValues(0,0,0),l=a.fromValues(0,1,0,0),c=a.fromValues(1,0,0,0),h=.01,d=1e4,f=1,p=a.fromValues(0,0,-1,0),m=a.fromValues(0,0,1,0),g=o.create(),v=o.create(),y=e.timestamp(),x=e.timestamp(),_=-1,b=1,w=1,M=-1,T={zoom:1,tilesize:256},A=!0,E=!0,C=!0,S=!1,P=[0,0,0,0],R=1,L=e.GL.COLOR_BUFFER_BIT|e.GL.DEPTH_BUFFER_BIT;return void 0!==t.parallelProjection&&(S=!!t.parallelProjection),this.viewAngle=function(){return i},this.setViewAngleDegrees=function(t){this.setViewAngle(Math.PI*t/180)},this.setViewAngle=function(t){C&&(i=t,this.modified())},this.position=function(){return n},this.setPosition=function(t,e,i){A&&(n=a.fromValues(t,e,i,1),this.modified())},this.focalPoint=function(){return r},this.setFocalPoint=function(t,e,i){E&&A&&(r=a.fromValues(t,e,i,1),this.modified())},this.viewUpDirection=function(){return l},this.setViewUpDirection=function(t,e,i){l=a.fromValues(t,e,i,0),this.modified()},this.centerOfRotation=function(){return u},this.setCenterOfRotation=function(t){u=t,this.modified()},this.clippingRange=function(){return[h,d]},this.setClippingRange=function(t,e){h=t,d=e,this.modified()},this.viewAspect=function(){return f},this.setViewAspect=function(t){f=t,this.modified()},this.enableScale=function(){return C},this.setEnableScale=function(t){return t!==C?(C=t,this.modified(),!0):C},this.enableRotation=function(){return E},this.setEnableRotation=function(t){return t!==E?(E=t,this.modified(),!0):E},this.enableTranslation=function(){return A},this.setEnableTranslation=function(t){return t!==A?(A=t,this.modified(),!0):A},this.isEnabledParallelProjection=function(){return S},this.enableParallelProjection=function(t){return t!==S?(S=t,this.modified(),!0):S},this.setEnableParallelProjection=function(t){return this.enableParallelProjection(t)},this.parallelProjection=function(){return{left:_,right:b,top:w,bottom:M}},this.setParallelProjection=function(t,e,i,n){_=t,b=e,w=i,M=n,this.modified()},this.parallelExtents=function(){return T},this.setParallelExtents=function(t){var e,i,n=["width","height","zoom","tilesize"],r=!1;for(e=0;e<n.length;e+=1)i=n[e],void 0!==t[i]&&t[i]!==T[i]&&(T[i]=t[i],r=!0);if(r&&T.width&&T.height&&void 0!==T.zoom&&T.tilesize){var o=this.unitsPerPixel(T.zoom,T.tilesize);b=o*T.width/2,_=-b,w=o*T.height/2,M=-w,this.modified()}},this.unitsPerPixel=function(t,e){return e=e||256,360*Math.pow(2,-t)/e},this.directionOfProjection=function(){return this.computeDirectionOfProjection(),p},this.viewPlaneNormal=function(){return this.computeViewPlaneNormal(),m},this.viewMatrix=function(){return this.computeViewMatrix()},this.setViewMatrix=function(t,e){e?g=t.slice():o.copy(g,t),y.modified()},this.projectionMatrix=function(){return this.computeProjectionMatrix()},this.setProjectionMatrix=function(t){o.copy(v,t),x.modified()},this.clearMask=function(){return L},this.setClearMask=function(t){L=t,this.modified()},this.clearColor=function(){return P},this.setClearColor=function(t,e,i,n){P[0]=t,P[1]=e,P[2]=i,P[3]=n,this.modified()},this.clearDepth=function(){return R},this.setClearDepth=function(t){R=t,this.modified()},this.computeDirectionOfProjection=function(){s.subtract(p,r,n),s.normalize(p,p),this.modified()},this.computeViewPlaneNormal=function(){m[0]=-p[0],m[1]=-p[1],m[2]=-p[2]},this.zoom=function(t,e){0!==t&&A&&(t*=s.distance(r,n),e?(n[0]=n[0]+t*e[0],n[1]=n[1]+t*e[1],n[2]=n[2]+t*e[2]):(e=p,n[0]=r[0]-t*e[0],n[1]=r[1]-t*e[1],n[2]=r[2]-t*e[2]),this.modified())},this.pan=function(t,e,i){A&&(n[0]+=t,n[1]+=e,n[2]+=i,r[0]+=t,r[1]+=e,r[2]+=i,this.modified())},this.computeOrthogonalAxes=function(){this.computeDirectionOfProjection(),s.cross(c,p,l),s.normalize(c,c),this.modified()},this.rotate=function(t,e){if(E){t=.5*t*(Math.PI/180),e=.5*e*(Math.PI/180);var i=o.create(),h=new s.create;o.identity(i),h[0]=-u[0],h[1]=-u[1],h[2]=-u[2],o.translate(i,i,u),o.rotate(i,i,t,l),o.rotate(i,i,e,c),o.translate(i,i,h),a.transformMat4(n,n,i),a.transformMat4(r,r,i),a.transformMat4(l,l,i),a.normalize(l,l),this.computeOrthogonalAxes(),this.modified()}},this.computeViewMatrix=function(){return y.getMTime()<this.getMTime()&&(o.lookAt(g,n,r,l),y.modified()),g},this.viewAlignment=function(){if(!S){var t=this.projectionMatrix();if(t[1]||t[2]||t[3]||t[4]||t[6]||t[7]||t[8]||t[9]||t[12]||t[13]||t[15])return null}var e=this.unitsPerPixel(T.zoom,T.tilesize);if(!T.width||!T.height||!e)return null;if(parseFloat(T.zoom.toFixed(6))!==parseFloat(T.zoom.toFixed(0)))return null;var i={roundx:e,roundy:e,dx:0,dy:0};return T.width%2&&(i.dx=.5*e),T.height%2&&(i.dy=.5*e),i},this.computeProjectionMatrix=function(){return x.getMTime()<this.getMTime()&&(S?o.ortho(v,_,b,M,w,h,d):o.perspective(v,i,f,h,d),x.modified()),v},this.zoomToHeight=function(t,n,r){return e.zoomToHeight(t,n,r,i)},this.computeDirectionOfProjection(),this},inherit(e.camera,e.groupNode),e.zoomToHeight=function(t,e,i,n){"use strict";n=n||30*Math.PI/180;var r=360*Math.pow(2,-t);return r/=2*Math.tan(n/2)*256/i},e.heightToZoom=function(t,e,i,n){"use strict";n=n||30*Math.PI/180,t*=2*Math.tan(n/2)*256/i;var r=-Math.log2(t/360);return r},e.interactorStyle=function(){"use strict";if(!(this instanceof e.interactorStyle))return new e.interactorStyle;e.object.call(this);var t=this,i=null;return this.viewer=function(){return i},this.setViewer=function(n){n!==i&&(i=n,l(i).on(e.event.mousePress,t.handleMouseDown),l(i).on(e.event.mouseRelease,t.handleMouseUp),l(i).on(e.event.mouseMove,t.handleMouseMove),l(i).on(e.event.mouseOut,t.handleMouseOut),l(i).on(e.event.mouseWheel,t.handleMouseWheel),l(i).on(e.event.keyPress,t.handleKeyPress),l(i).on(e.event.mouseContextMenu,t.handleContextMenu),l(i).on(e.event.click,t.handleClick),l(i).on(e.event.dblClick,t.handleDoubleClick),this.modified())},this.handleMouseDown=function(t){return t=t,!0},this.handleMouseUp=function(t){return t=t,!0},this.handleMouseMove=function(t){return t=t,!0},this.handleMouseOut=function(t){return t=t,!0},this.handleMouseWheel=function(t){return t=t,!0},this.handleClick=function(t){return t=t,!0},this.handleDoubleClick=function(t){return t=t,!0},this.handleKeyPress=function(t){return t=t,!0},this.handleContextMenu=function(t){return t=t,!0},this.reset=function(){return!0},this},inherit(e.interactorStyle,e.object),e.trackballInteractorStyle=function(){"use strict";if(!(this instanceof e.trackballInteractorStyle))return new e.trackballInteractorStyle;e.interactorStyle.call(this);var t,i=this,n=!1,r=!1,o=!1,s={x:0,y:0},u={x:0,y:0};return this.handleMouseMove=function(e){var l,c,h,d,f,p,m,g,v,y,x,_=i.viewer().renderWindow().windowSize()[0],b=i.viewer().renderWindow().windowSize()[1],w=i.viewer().renderWindow().activeRenderer(),M=w.camera(),T=i.viewer().relMouseCoords(e);if(t=!1,s={x:0,y:0},T.x<0||T.x>_?(s.x=0,t=!0):s.x=T.x,T.y<0||T.y>b?(s.y=0,t=!0):s.y=T.y,t!==!0)return l=M.focalPoint(),h=a.fromValues(l[0],l[1],l[2],1),c=w.worldToDisplay(h,M.viewMatrix(),M.projectionMatrix(),_,b),d=a.fromValues(s.x,s.y,c[2],1),f=a.fromValues(u.x,u.y,c[2],1),p=w.displayToWorld(d,M.viewMatrix(),M.projectionMatrix(),_,b),m=w.displayToWorld(f,M.viewMatrix(),M.projectionMatrix(),_,b),g=p[0]-m[0],v=p[1]-m[1],y=p[2]-m[2],o&&(M.pan(-g,-v,-y),i.viewer().render()),n&&(M.rotate(u.x-s.x,u.y-s.y),w.resetCameraClippingRange(),i.viewer().render()),r&&(x=2*(s.y-u.y)/b,x>0?M.zoom(1-Math.abs(x)):M.zoom(1+Math.abs(x)),w.resetCameraClippingRange(),i.viewer().render()),u.x=s.x,u.y=s.y,!1},this.handleMouseDown=function(t){var e;return 0===t.button&&(n=!0),1===t.button&&(o=!0),2===t.button&&(r=!0),e=i.viewer().relMouseCoords(t),e.x<0?u.x=0:u.x=e.x,e.y<0?u.y=0:u.y=e.y,!1},this.handleMouseUp=function(t){return 0===t.button&&(n=!1),1===t.button&&(o=!1),2===t.button&&(r=!1),!1},this.handleMouseWheel=function(t){var e=i.viewer().renderWindow().activeRenderer(),n=e.camera();return t.originalEvent.wheelDelta<0?n.zoom(.9):n.zoom(1.1),e.resetCameraClippingRange(),i.viewer().render(),!0},this},inherit(e.trackballInteractorStyle,e.interactorStyle),e.pvwInteractorStyle=function(){"use strict";function t(){r.resetCameraClippingRange(),b.viewer().render()}if(!(this instanceof e.pvwInteractorStyle))return new e.pvwInteractorStyle;e.trackballInteractorStyle.call(this);var i,n,r,o,s,u,l,c,h,d,f,p,m,g,v,y,x,_,b=this,w=!1,M=!1,T=!1,A={x:0,y:0};return this.handleMouseMove=function(e){var E=[],C=null,S=[],P=null;for(i=b.viewer().renderWindow().windowSize()[0],n=b.viewer().renderWindow().windowSize()[1],r=b.viewer().renderWindow().activeRenderer(),o=r.camera(),s=!1,u=b.viewer().relMouseCoords(e),l={x:0,y:0},E=b.viewer().renderWindow().renderers(),C=0;C<E.length;C+=1)r!==E[C]&&S.push(E[C].camera());if(u.x<0||u.x>i?(l.x=0,s=!0):l.x=u.x,u.y<0||u.y>n?(l.y=0,s=!0):l.y=u.y,s!==!0){if(c=o.focalPoint(),h=a.fromValues(c[0],c[1],c[2],1),d=r.worldToDisplay(h,o.viewMatrix(),o.projectionMatrix(),i,n),f=a.fromValues(l.x,l.y,d[2],1),p=a.fromValues(A.x,A.y,d[2],1),m=r.displayToWorld(f,o.viewMatrix(),o.projectionMatrix(),i,n),g=r.displayToWorld(p,o.viewMatrix(),o.projectionMatrix(),i,n),v=m[0]-g[0],y=m[1]-g[1],x=m[2]-g[2],T&&(o.pan(-v,-y,-x),t()),w){for(P=[A.x-l.x,A.y-l.y],o.rotate(P[0],P[1]),C=0;C<S.length;C+=1)S[C].rotate(P[0],P[1]);for(C=0;C<E.length;C+=1)E[C].resetCameraClippingRange();t()}return 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e.floatUniform?(t||(t="floatUniform"),i=void 0===i?1:i,e.uniform.call(this,e.GL.FLOAT,t),void this.set(i)):new e.floatUniform(t,i)},inherit(e.floatUniform,e.uniform),e.normalMatrixUniform=function(t){"use strict";return this instanceof e.normalMatrixUniform?(t||(t="normalMatrix"),e.uniform.call(this,e.GL.FLOAT_MAT4,t),this.set(o.create()),this.update=function(t,e){this.set(t.m_normalMatrix)},this):new e.normalMatrixUniform(t)},inherit(e.normalMatrixUniform,e.uniform),e.vertexAttributeKeys={Position:0,Normal:1,TextureCoordinate:2,Color:3,Scalar:4,CountAttributeIndex:5},e.vertexAttributeKeysIndexed={Zero:0,One:1,Two:2,Three:3,Four:4,Five:5,Six:6,Seven:7,Eight:8,Nine:9},e.vertexAttribute=function(t){"use strict";if(!(this instanceof e.vertexAttribute))return new e.vertexAttribute(t);var i=t;this.name=function(){return i},this.bindVertexData=function(t,e){var n=t.m_mapper.geometryData(),r=n.sourceData(e),o=t.m_material.shaderProgram();t.m_context.vertexAttribPointer(o.attributeLocation(i),r.attributeNumberOfComponents(e),r.attributeDataType(e),r.normalized(e),r.attributeStride(e),r.attributeOffset(e)),t.m_context.enableVertexAttribArray(o.attributeLocation(i))},this.undoBindVertexData=function(t,e){e=e;var n=t.m_material.shaderProgram();t.m_context.disableVertexAttribArray(n.attributeLocation(i))}},e.source=function(){"use strict";return this instanceof e.source?(e.object.call(this),this.create=function(){},this):new e.source},inherit(e.source,e.object),e.planeSource=function(){"use strict";if(!(this instanceof e.planeSource))return new e.planeSource;e.source.call(this);var t=[0,0,0],i=[1,0,0],n=[0,1,0],r=[0,0,1],o=1,a=1,s=null;this.setOrigin=function(e,i,n){t[0]=e,t[1]=i,t[2]=n},this.setPoint1=function(t,e,n){i[0]=t,i[1]=e,i[2]=n},this.setPoint2=function(t,e,i){n[0]=t,n[1]=e,n[2]=i},this.create=function(){s=new e.geometryData;var u,l,c,h,d,f=[],p=[],m=[],g=[],v=[],y=0,x=0,_=0,b=0,w=[],M=[],T=[],A=[],E=[],C=null,S=null,P=null;for(f.length=3,p.length=2,m.length=3,g.length=3,v.length=3,u=0;u<3;u+=1)m[u]=i[u]-t[u],g[u]=n[u]-t[u];for(h=(o+1)*(a+1),w.length=3*h,M.length=3*h,A.length=2*h,E.length=h,u=0;u<a+1;u+=1)for(p[1]=u/a,l=0;l<o+1;l+=1){for(p[0]=l/o,c=0;c<3;c+=1)f[c]=t[c]+p[0]*m[c]+p[1]*g[c];w[y++]=f[0],w[y++]=f[1],w[y++]=f[2],T[_++]=1,T[_++]=1,T[_++]=1,M[x++]=r[0],M[x++]=r[1],M[x++]=r[2],A[b++]=p[0],A[b++]=p[1]}for(u=0;u<a;u+=1)for(l=0;l<o;l+=1)v[0]=l+u*(o+1),v[1]=v[0]+1,v[2]=v[0]+o+2,v[3]=v[0]+o+1;for(u=0;u<h;u+=1)E[u]=u;return C=new e.triangleStrip,C.setIndices(E),S=e.sourceDataP3fv(),S.pushBack(w),P=e.sourceDataC3fv(),P.pushBack(T),d=e.sourceDataT2fv(),d.pushBack(A),s.addSource(S),s.addSource(P),s.addSource(d),s.addPrimitive(C),s}},inherit(e.planeSource,e.source),e.pointSource=function(){"use strict";if(!(this instanceof e.pointSource))return new e.pointSource;e.source.call(this);var t=this,i=[],n=[],r=[],o=[],a=null;this.getPositions=function(){return i},this.setPositions=function(e){e instanceof Array?i=e:console.log("[ERROR] Invalid data type for positions. Array is required."),t.modified()},this.getColors=function(){return n},this.setColors=function(e){e instanceof Array?n=e:console.log("[ERROR] Invalid data type for colors. Array is required."),t.modified()},this.getSize=function(){return o},this.setSize=function(t){o=t,this.modified()},this.setTextureCoordinates=function(e){e instanceof Array?r=e:console.log("[ERROR] Invalid data type for texture coordinates. Array is required."),t.modified()},this.create=function(){if(a=new e.geometryData,i.length%3!==0)return void console.log("[ERROR] Invalid length of the points array");var t,s,u,l,c,h=i.length/3,d=0,f=[];for(f.length=h,d=0;d<h;d+=1)f[d]=d;if(c=e.sourceDataDf(),h!==o.length)for(d=0;d<h;d+=1)c.pushBack(o);else c.setData(o);return a.addSource(c),t=new e.points,t.setIndices(f),s=e.sourceDataP3fv(),s.pushBack(i),a.addSource(s),n.length>0&&n.length===i.length?(u=e.sourceDataC3fv(),u.pushBack(n),a.addSource(u)):n.length>0&&n.length!==i.length&&console.log("[ERROR] Number of colors are different than number of points"),r.length>0&&r.length===i.length?(l=e.sourceDataT2fv(),l.pushBack(r),a.addSource(l)):r.length>0&&r.length/2!==i.length/3&&console.log("[ERROR] Number of texture coordinates are different than number of points"),a.addPrimitive(t),a}},inherit(e.pointSource,e.source),e.lineSource=function(t,i){"use strict";if(!(this instanceof e.lineSource))return new e.lineSource;e.source.call(this);var n=t,r=i;this.setPositions=function(t){return t instanceof Array?(n=t,this.modified(),!0):(console.log("[ERROR] Invalid data type for positions. Array is required."),!1)},this.setColors=function(t){return t instanceof Array?(r=t,this.modified(),!0):(console.log("[ERROR] Invalid data type for colors. Array is required."),!1)},this.create=function(){if(!n)return void console.log("[error] Invalid positions");if(n.length%3!==0)return void console.log("[error] Line source requires 3d points");if(n.length%3!==0)return void console.log("[ERROR] Invalid length of the points array");var t,i,o,a,s=new e.geometryData,u=n.length/3,l=[];for(l.length=u,t=0;t<u;t+=1)l[t]=t;return i=new e.lines,i.setIndices(l),o=e.sourceDataP3fv(),o.pushBack(n),s.addSource(o),r&&r.length>0&&r.length===n.length?(a=e.sourceDataC3fv(),a.pushBack(r),s.addSource(a)):r&&r.length>0&&r.length!==n.length&&console.log("[error] Number of colors are different than number of points"),s.addPrimitive(i),s}},inherit(e.lineSource,e.source),e.utils=function(){"use strict";return this instanceof e.utils?(e.object.call(this),this):new e.utils},inherit(e.utils,e.object),e.utils.computePowerOfTwo=function(t,e){"use strict";for(e=e||1;e<t;)e*=2;return e},e.utils.createTextureVertexShader=function(t){"use strict";var i=["attribute vec3 vertexPosition;","attribute vec3 textureCoord;","uniform mediump float pointSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","varying highp vec3 iTextureCoord;","void main(void)","{","gl_PointSize = pointSize;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);"," iTextureCoord = textureCoord;","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createTextureFragmentShader=function(t){"use strict";var i=["varying highp vec3 iTextureCoord;","uniform sampler2D sampler2d;","uniform mediump float opacity;","void main(void) {","gl_FragColor = vec4(texture2D(sampler2d, vec2(iTextureCoord.s, iTextureCoord.t)).xyz, opacity);","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createRgbaTextureFragmentShader=function(t){"use strict";var i=["varying highp vec3 iTextureCoord;","uniform sampler2D sampler2d;","uniform mediump float opacity;","void main(void) {","  mediump vec4 color = vec4(texture2D(sampler2d, vec2(iTextureCoord.s, iTextureCoord.t)).xyzw);","  color.w *= opacity;","  gl_FragColor = color;","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createVertexShader=function(t){"use strict";var i=["attribute vec3 vertexPosition;","attribute vec3 vertexColor;","uniform mediump float pointSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","varying mediump vec3 iVertexColor;","varying highp vec3 iTextureCoord;","void main(void)","{","gl_PointSize = pointSize;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);"," iVertexColor = vertexColor;","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createPointVertexShader=function(t){"use strict";var i=["attribute vec3 vertexPosition;","attribute vec3 vertexColor;","attribute float vertexSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","varying mediump vec3 iVertexColor;","varying highp vec3 iTextureCoord;","void main(void)","{","gl_PointSize =  vertexSize;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);"," iVertexColor = vertexColor;","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createVertexShaderSolidColor=function(t){"use strict";var i=["attribute vec3 vertexPosition;","uniform mediump float pointSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","void main(void)","{","gl_PointSize = pointSize;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createVertexShaderColorMap=function(t,i,n){"use strict";i=i,n=n;var r=["attribute vec3 vertexPosition;","attribute float vertexScalar;","uniform mediump float pointSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","uniform float lutMin;","uniform float lutMax;","varying mediump float iVertexScalar;","void main(void)","{","gl_PointSize = pointSize;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition, 1.0);","iVertexScalar = (vertexScalar-lutMin)/(lutMax-lutMin);","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,r)},e.utils.createFragmentShader=function(t){"use strict";var i=["varying mediump vec3 iVertexColor;","uniform mediump float opacity;","void main(void) {","gl_FragColor = vec4(iVertexColor, opacity);","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createPhongVertexShader=function(t){"use strict";var i=["attribute highp vec3 vertexPosition;","attribute mediump vec3 vertexNormal;","attribute mediump vec3 vertexColor;","uniform highp mat4 projectionMatrix;","uniform mat4 modelViewMatrix;","uniform mat4 normalMatrix;","varying highp vec4 varPosition;","varying mediump vec3 varNormal;","varying mediump vec3 varVertexColor;","void main(void)","{","varPosition = modelViewMatrix * vec4(vertexPosition, 1.0);","gl_Position = projectionMatrix * varPosition;","varNormal = vec3(normalMatrix * vec4(vertexNormal, 0.0));","varVertexColor = vertexColor;","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createPhongFragmentShader=function(t){"use strict";var i=["uniform mediump float opacity;","precision mediump float;","varying vec3 varNormal;","varying vec4 varPosition;","varying mediump vec3 varVertexColor;","const vec3 lightPos = vec3(0.0, 0.0,10000.0);","const vec3 ambientColor = vec3(0.01, 0.01, 0.01);","const vec3 specColor = vec3(0.0, 0.0, 0.0);","void main() {","vec3 normal = normalize(varNormal);","vec3 lightDir = normalize(lightPos);","vec3 reflectDir = -reflect(lightDir, normal);","vec3 viewDir = normalize(-varPosition.xyz);","float lambertian = max(dot(lightDir, normal), 0.0);","vec3 color = vec3(0.0);","if(lambertian > 0.0) {","  color = lambertian * varVertexColor;","}","gl_FragColor = vec4(color * opacity, 1.0 - opacity);","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createFragmentShaderSolidColor=function(t,i){"use strict";var n=["uniform mediump float opacity;","void main(void) {","gl_FragColor = vec4("+i[0]+","+i[1]+","+i[2]+", opacity);","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,n)},e.utils.createFragmentShaderColorMap=function(t){"use strict";var i=["varying mediump float iVertexScalar;","uniform sampler2D sampler2d;","uniform mediump float opacity;","void main(void) {","gl_FragColor = vec4(texture2D(sampler2d, vec2(iVertexScalar, 0.0)).xyz, opacity);","}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createPointSpritesVertexShader=function(t){"use strict";var i=["attribute vec3 vertexPosition;","attribute vec3 vertexColor;","uniform mediump vec2 pointSize;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","uniform float height;","varying mediump vec3 iVertexColor;","varying highp float iVertexScalar;","void main(void)","{","mediump float realPointSize = pointSize.y;","if (pointSize.x > pointSize.y) {","  realPointSize = pointSize.x;}","gl_PointSize = realPointSize ;","iVertexScalar = vertexPosition.z;","gl_Position = projectionMatrix * modelViewMatrix * vec4(vertexPosition.xy, height, 1.0);"," iVertexColor = vertexColor;","}"].join("\n");return e.getCachedShader(e.GL.VERTEX_SHADER,t,i)},e.utils.createPointSpritesFragmentShader=function(t){"use strict";var i=["varying mediump vec3 iVertexColor;","varying highp float iVertexScalar;","uniform sampler2D opacityLookup;","uniform highp float lutMin;","uniform highp float lutMax;","uniform sampler2D scalarsToColors;","uniform int useScalarsToColors;","uniform int useVertexColors;","uniform mediump vec2 pointSize;","uniform mediump float vertexColorWeight;","void main(void) {","mediump vec2 realTexCoord;","if (pointSize.x > pointSize.y) {","  realTexCoord = vec2(1.0, pointSize.y/pointSize.x) * gl_PointCoord;","} else {","  realTexCoord = vec2(pointSize.x/pointSize.y, 1.0) * gl_PointCoord;","}","highp float texOpacity = texture2D(opacityLookup, realTexCoord).w;","if (useScalarsToColors == 1) {","  gl_FragColor = vec4(texture2D(scalarsToColors, vec2((iVertexScalar - lutMin)/(lutMax - lutMin), 0.0)).xyz, texOpacity);","} else if (useVertexColors == 1) {","  gl_FragColor = vec4(iVertexColor, texOpacity);","} else {","  gl_FragColor = vec4(texture2D(opacityLookup, realTexCoord).xyz, texOpacity);","}}"].join("\n");return e.getCachedShader(e.GL.FRAGMENT_SHADER,t,i)},e.utils.createTextureMaterial=function(t,i){"use strict";var n,r=new e.material,o=new e.blend,a=new e.shaderProgram,s=e.utils.createTextureVertexShader(e.GL),u=null,l=new e.vertexAttribute("vertexPosition"),c=new e.vertexAttribute("textureCoord"),h=new e.floatUniform("pointSize",5),d=new e.projectionUniform("projectionMatrix"),f=new e.uniform(e.GL.INT,"sampler2d"),p=null;return n=void 0!==i?new e.modelViewOriginUniform("modelViewMatrix",i):new e.modelViewUniform("modelViewMatrix"),f.set(0),a.addVertexAttribute(l,e.vertexAttributeKeys.Position),a.addVertexAttribute(c,e.vertexAttributeKeys.TextureCoordinate),a.addUniform(h),a.addUniform(n),a.addUniform(d),u=t?e.utils.createRgbaTextureFragmentShader(e.GL):e.utils.createTextureFragmentShader(e.GL),p=new e.floatUniform("opacity",1),a.addUniform(p),a.addShader(u),a.addShader(s),r.addAttribute(a),r.addAttribute(o),r},e.utils.createGeometryMaterial=function(){"use strict";var t=new e.material,i=new e.shaderProgram,n=5,r=1,o=e.utils.createVertexShader(e.GL),a=e.utils.createFragmentShader(e.GL),s=new e.vertexAttribute("vertexPosition"),u=new e.vertexAttribute("vertexColor"),l=new e.floatUniform("pointSize",n),c=new e.floatUniform("opacity",r),h=new e.modelViewUniform("modelViewMatrix"),d=new e.projectionUniform("projectionMatrix");return i.addVertexAttribute(s,e.vertexAttributeKeys.Position),i.addVertexAttribute(u,e.vertexAttributeKeys.Color),i.addUniform(l),i.addUniform(c),i.addUniform(h),i.addUniform(d),i.addShader(a),i.addShader(o),t.addAttribute(i),t},e.utils.createPointGeometryMaterial=function(t){"use strict";t=void 0===t?1:t;var i=new e.material,n=new e.blend,r=new e.shaderProgram,o=e.utils.createPointVertexShader(e.GL),a=e.utils.createFragmentShader(e.GL),s=new e.vertexAttribute("vertexPosition"),u=new e.vertexAttribute("vertexColor"),l=new e.vertexAttribute("vertexSize"),c=new e.floatUniform("opacity",t),h=new e.modelViewUniform("modelViewMatrix"),d=new e.projectionUniform("projectionMatrix");return r.addVertexAttribute(s,e.vertexAttributeKeys.Position),r.addVertexAttribute(u,e.vertexAttributeKeys.Color),r.addVertexAttribute(l,e.vertexAttributeKeys.Scalar),r.addUniform(c),r.addUniform(h),r.addUniform(d),r.addShader(a),r.addShader(o),i.addAttribute(r),i.addAttribute(n),i},e.utils.createPhongMaterial=function(){"use strict";var t=new e.material,i=new e.shaderProgram,n=e.utils.createPhongVertexShader(e.GL),r=e.utils.createPhongFragmentShader(e.GL),o=new e.vertexAttribute("vertexPosition"),a=new e.vertexAttribute("vertexNormal"),s=new e.vertexAttribute("vertexColor"),u=new e.floatUniform("opacity",1),l=new e.modelViewUniform("modelViewMatrix"),c=new e.normalMatrixUniform("normalMatrix"),h=new e.projectionUniform("projectionMatrix");return i.addVertexAttribute(o,e.vertexAttributeKeys.Position),i.addVertexAttribute(a,e.vertexAttributeKeys.Normal),i.addVertexAttribute(s,e.vertexAttributeKeys.Color),i.addUniform(u),i.addUniform(l),i.addUniform(h),i.addUniform(c),i.addShader(r),i.addShader(n),t.addAttribute(i),t},e.utils.createColorMaterial=function(){"use strict";var t=new e.material,i=new e.blend,n=new e.shaderProgram,r=e.utils.createVertexShader(e.GL),o=e.utils.createFragmentShader(e.GL),a=new e.vertexAttribute("vertexPosition"),s=new e.vertexAttribute("textureCoord"),u=new e.vertexAttribute("vertexColor"),l=new e.floatUniform("pointSize",5),c=new e.floatUniform("opacity",1),h=new e.modelViewUniform("modelViewMatrix"),d=new e.projectionUniform("projectionMatrix");return n.addVertexAttribute(a,e.vertexAttributeKeys.Position),n.addVertexAttribute(u,e.vertexAttributeKeys.Color),n.addVertexAttribute(s,e.vertexAttributeKeys.TextureCoordinate),n.addUniform(l),n.addUniform(c),n.addUniform(h),n.addUniform(d),n.addShader(o),n.addShader(r),t.addAttribute(n),t.addAttribute(i),t},e.utils.createColorMappedMaterial=function(t){"use strict";t||(t=new e.lookupTable);var i=t.range(),n=new e.material,r=new e.blend,o=new e.shaderProgram,a=e.utils.createVertexShaderColorMap(e.GL,i[0],i[1]),s=e.utils.createFragmentShaderColorMap(e.GL),u=new e.vertexAttribute("vertexPosition"),l=new e.vertexAttribute("vertexScalar"),c=new e.floatUniform("pointSize",5),h=new e.floatUniform("opacity",1),d=new e.floatUniform("lutMin",i[0]),f=new e.floatUniform("lutMax",i[1]),p=new e.modelViewUniform("modelViewMatrix"),m=new e.projectionUniform("projectionMatrix"),g=new e.uniform(e.GL.FLOAT,"sampler2d"),v=t;return g.set(0),o.addVertexAttribute(u,e.vertexAttributeKeys.Position),o.addVertexAttribute(l,e.vertexAttributeKeys.Scalar),o.addUniform(c),o.addUniform(h),o.addUniform(d),o.addUniform(f),o.addUniform(p),o.addUniform(m),o.addShader(s),o.addShader(a),n.addAttribute(o),n.addAttribute(r),n.addAttribute(v),n},e.utils.updateColorMappedMaterial=function(t,e){"use strict";if(!t)return void console.log("[warning] Invalid material. Nothing to update.");if(!e)return void console.log("[warning] Invalid lookup table. Nothing to update.");var i=t.shaderProgram().uniform("lutMin"),n=t.shaderProgram().uniform("lutMax");
-i.set(e.range()[0]),n.set(e.range()[1]),t.setAttribute(e)},e.utils.createSolidColorMaterial=function(t){"use strict";t||(t=[1,1,1]);var i=new e.material,n=new e.blend,r=new e.shaderProgram,o=e.utils.createVertexShaderSolidColor(e.GL),a=e.utils.createFragmentShaderSolidColor(e.GL,t),s=new e.vertexAttribute("vertexPosition"),u=new e.floatUniform("pointSize",5),l=new e.floatUniform("opacity",1),c=new e.modelViewUniform("modelViewMatrix"),h=new e.projectionUniform("projectionMatrix");return r.addVertexAttribute(s,e.vertexAttributeKeys.Position),r.addUniform(u),r.addUniform(l),r.addUniform(c),r.addUniform(h),r.addShader(a),r.addShader(o),i.addAttribute(r),i.addAttribute(n),i},e.utils.createPointSpritesMaterial=function(t,i){"use strict";var n=void 0===i?[0,1]:i.range(),r=new e.material,o=new e.blend,a=new e.shaderProgram,s=e.utils.createPointSpritesVertexShader(e.GL),u=e.utils.createPointSpritesFragmentShader(e.GL),l=new e.vertexAttribute("vertexPosition"),c=new e.vertexAttribute("vertexColor"),h=new e.floatUniform("height",0),d=new e.floatUniform("vertexColorWeight",0),f=new e.floatUniform("lutMin",n[0]),p=new e.floatUniform("lutMax",n[1]),m=new e.modelViewUniform("modelViewMatrix"),g=new e.projectionUniform("projectionMatrix"),v=new e.uniform(e.GL.INT,"opacityLookup"),y=new e.uniform(e.GL.INT,"scalarsToColors"),x=new e.uniform(e.GL.INT,"useScalarsToColors"),_=new e.uniform(e.GL.INT,"useVertexColors"),b=new e.uniform(e.GL.FLOAT_VEC2,"pointSize"),w=new e.texture;return v.set(0),y.set(1),x.set(0),_.set(0),b.set([1,1]),a.addVertexAttribute(l,e.vertexAttributeKeys.Position),a.addVertexAttribute(c,e.vertexAttributeKeys.Color),a.addUniform(h),a.addUniform(d),a.addUniform(m),a.addUniform(g),a.addUniform(v),a.addUniform(_),a.addUniform(x),a.addUniform(b),a.addShader(u),a.addShader(s),r.addAttribute(a),r.addAttribute(o),i&&(a.addUniform(y),x.set(1),a.addUniform(f),a.addUniform(p),i.setTextureUnit(1),r.addAttribute(i)),w.setImage(t),w.setTextureUnit(0),r.addAttribute(w),r},e.utils.createPlane=function(t,i,n,r,o,a,s,u,l){"use strict";var c=new e.mapper,h=new e.planeSource,d=e.utils.createGeometryMaterial(),f=new e.actor;return h.setOrigin(t,i,n),h.setPoint1(r,o,a),h.setPoint2(s,u,l),c.setGeometryData(h.create()),f.setMapper(c),f.setMaterial(d),f},e.utils.createTexturePlane=function(t,i,n,r,o,a,s,u,l,c){"use strict";var h=new e.mapper,d=new e.planeSource,f=e.utils.createTextureMaterial(c,[t,i,n]),p=new e.actor;return d.setPoint1(r-t,o-i,a-n),d.setPoint2(s-t,u-i,l-n),h.setGeometryData(d.create()),p.setMapper(h),p.setMaterial(f),p},e.utils.createPoints=function(t,i,n,r,o){"use strict";if(!t)return console.log("[ERROR] Cannot create points without positions"),null;o=void 0===o?1:o;var a=new e.mapper,s=new e.pointSource,u=e.utils.createPointGeometryMaterial(o),l=new e.actor;return s.setPositions(t),n&&s.setColors(n),r&&s.setTextureCoordinates(r),i?s.setSize(i):s.setSize(1),a.setGeometryData(s.create()),l.setMapper(a),l.setMaterial(u),l},e.utils.createPointSprites=function(t,i,n,r){"use strict";if(!t)return console.log("[ERROR] Point sprites requires an image"),null;if(!i)return console.log("[ERROR] Cannot create points without positions"),null;var o=new e.mapper,a=new e.pointSource,s=e.utils.createPointSpritesMaterial(t),u=new e.actor;return a.setPositions(i),n&&a.setColors(n),r&&a.setTextureCoordinates(r),o.setGeometryData(a.create()),u.setMapper(o),u.setMaterial(s),u},e.utils.createLines=function(t,i){"use strict";if(!t)return console.log("[ERROR] Cannot create points without positions"),null;var n=new e.mapper,r=new e.lineSource,o=e.utils.createGeometryMaterial(),a=new e.actor;return r.setPositions(t),i&&r.setColors(i),n.setGeometryData(r.create()),a.setMapper(n),a.setMaterial(o),a},e.utils.createColorLegend=function(t,i,n,r,o,a,s){"use strict";function u(t,i,n){if(!i)return void console.log("[error] Create labels requires positions (x,y,z) array");if(i.length%3!==0)return void console.log("[error] Create labels require positions array contain 3d points");if(!n)return void console.log("[error] Create labels requires Valid range");var r,o=null,a=e.utils.computePowerOfTwo(48),s=0,u=[],l=[],c=[],h=[],d=i[6]-i[0],f=4;for(l.length=3,c.length=3,h.length=3,r=0;r<2;r+=1)s=r*(i.length-3),l[0]=i[s]-d,l[1]=i[s+1]-2*d,l[2]=i[s+2],c[0]=i[s]+d,c[1]=l[1],c[2]=l[2],h[0]=l[0],h[1]=i[1],h[2]=l[2],o=e.utils.createTexturePlane(l[0],l[1],l[2],c[0],c[1],c[2],h[0],h[1],h[2],!0),o.setReferenceFrame(e.boundingObject.ReferenceFrame.Absolute),o.material().setBinNumber(e.material.RenderBin.Overlay),o.material().addAttribute(e.utils.create2DTexture(n[r].toFixed(2).toString(),12,null)),u.push(o);return l[0]=.5*(i[0]+i[i.length-3]-a),l[1]=i[1]+f,l[2]=i[2],c[0]=l[0]+a,c[1]=l[1],c[2]=l[2],h[0]=l[0],h[1]=l[1]+a,h[2]=l[2],o=e.utils.createTexturePlane(l[0],l[1],l[2],c[0],c[1],c[2],h[0],h[1],h[2],!0),o.setReferenceFrame(e.boundingObject.ReferenceFrame.Absolute),o.material().setBinNumber(e.material.RenderBin.Overlay),o.material().addAttribute(e.utils.create2DTexture(t,24,null)),u.push(o),u}function l(t,e,i,n,r,o,a,s,l,c,h,d,f,p,m){m=m;var g=l-o,v=null,y=g/d,x=[],_=[];for(v=0;v<=d;v+=1)x.push(o+y*v),x.push(a),x.push(s),x.push(o+y*v),x.push(a+p),x.push(s);return _=_.concat(u(t,x,e.range()))}if(!i)return console.log("[error] Invalid lookup table"),[];var c=n[0]+r,h=n[1],d=0,f=n[0],p=n[1]+o,m=0,g=[],v=null,y=null,x=e.groupNode();return v=e.utils.createTexturePlane(n[0],n[1],n[2],c,h,d,f,p,m,!0),y=v.material(),y.addAttribute(i),v.setMaterial(y),x.addChild(v),v.material().setBinNumber(e.material.RenderBin.Overlay),v.setReferenceFrame(e.boundingObject.ReferenceFrame.Absolute),g.push(v),g=g.concat(l(t,i,n[0],n[1],n[1],f,h,d,c,h,d,a,s,5,3))},e.utils.create2DTexture=function(t,i,n,r,o,a,s){"use strict";var u=document.getElementById("textRendering"),l=null,c=e.texture();return r=r||"sans-serif",o=o||"center",a=a||"bottom","undefined"==typeof 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r,o,s,u,l,c,h,d,f,p,m,g=n.camera(),v=n.width(),y=n.height(),x=g.focalPoint(),_=a.fromValues(x[0],x[1],x[2],1),b=n.worldToDisplay(_,g.viewMatrix(),g.projectionMatrix(),v,y),w=a.fromValues(e,i,b[2],1),M=n.displayToWorld(w,g.viewMatrix(),g.projectionMatrix(),v,y),T=g.position(),A=[];for(s=0;s<3;s+=1)A[s]=M[s]-T[s];for(r=n.sceneRoot().children(),o=0,s=0;s<r.length;s+=1)if(m=r[s],m.visible()===!0){if(u=m.bounds(),A[0]>=0?(l=(u[0]-T[0])/A[0],c=(u[1]-T[0])/A[0]):(l=(u[1]-T[0])/A[0],c=(u[0]-T[0])/A[0]),A[1]>=0?(h=(u[2]-T[1])/A[1],d=(u[3]-T[1])/A[1]):(h=(u[3]-T[1])/A[1],d=(u[2]-T[1])/A[1]),l>d||h>c)continue;if(h>l&&(l=h),d<c&&(c=d),A[2]>=0?(f=(u[4]-T[2])/A[2],p=(u[5]-T[2])/A[2]):(f=(u[5]-T[2])/A[2],p=(u[4]-T[2])/A[2]),l>p||f>c)continue;f>l&&(l=f),p<c&&(c=p),t[o]=m,o+=1}return o},this},inherit(e.picker,e.object),e.shapefileReader=function(){"use strict";if(!(this instanceof e.shapefileReader))return new e.shapefileReader;var t=this,i=0,n=1,r=5,o=3;return this.int8=function(t,e){return t.charCodeAt(e)},this.bint32=function(t,e){return((255&t.charCodeAt(e))<<24)+((255&t.charCodeAt(e+1))<<16)+((255&t.charCodeAt(e+2))<<8)+(255&t.charCodeAt(e+3))},this.lint32=function(t,e){return((255&t.charCodeAt(e+3))<<24)+((255&t.charCodeAt(e+2))<<16)+((255&t.charCodeAt(e+1))<<8)+(255&t.charCodeAt(e))},this.bint16=function(t,e){return((255&t.charCodeAt(e))<<8)+(255&t.charCodeAt(e+1))},this.lint16=function(t,e){return((255&t.charCodeAt(e+1))<<8)+(255&t.charCodeAt(e))},this.ldbl64=function(t,e){var i=255&t.charCodeAt(e),n=255&t.charCodeAt(e+1),r=255&t.charCodeAt(e+2),o=255&t.charCodeAt(e+3),a=255&t.charCodeAt(e+4),s=255&t.charCodeAt(e+5),u=255&t.charCodeAt(e+6),l=255&t.charCodeAt(e+7),c=1-2*(l>>7),h=((127&l)<<4)+((240&u)>>4)-1023,d=(15&u)*Math.pow(2,48)+s*Math.pow(2,40)+a*Math.pow(2,32)+o*Math.pow(2,24)+r*Math.pow(2,16)+n*Math.pow(2,8)+i;return c*(1+d*Math.pow(2,-52))*Math.pow(2,h)},this.lfloat32=function(t,e){var i=255&t.charCodeAt(e),n=255&t.charCodeAt(e+1),r=255&t.charCodeAt(e+2),o=255&t.charCodeAt(e+3),a=1-2*(o>>7),s=((127&o)<<1)+((254&r)>>7)-127,u=(127&r)*Math.pow(2,16)+n*Math.pow(2,8)+i;return a*(1+u*Math.pow(2,-23))*Math.pow(2,s)},this.str=function(t,e,i){for(var n=[],r=e;r<e+i;){var o=t[r];if(0===o.charCodeAt(0))break;n.push(o),r+=1}return n.join("")},this.readHeader=function(t){var e=this.bint32(t,0),i=this.bint32(t,24),n=this.lint32(t,28),r=this.lint32(t,32);return{code:e,length:i,version:n,shapetype:r}},this.loadShx=function(e){for(var i=[],n=function(n){return i.push(2*t.bint32(e,n)),n+8},r=100;r<e.length;)r=n(r);return i},this.Shapefile=function(t){var e=t.path;l.ajax({url:e+".shx",mimeType:"text/plain; charset=x-user-defined",success:function(i){var n=this.loadShx(i);l.ajax({url:e+".shp",mimeType:"text/plain; charset=x-user-defined",success:function(i){l.ajax({url:e+".dbf",mimeType:"text/plain; charset=x-user-defined",success:function(e){var r=this.loadShp(i,e,n,t);t.success(r)}})}})}})},this.localShapefile=function(e){var i=e.shx,n=e.shp,r=e.dbf,o=new FileReader;o.onloadend=function(){var i=t.loadShx(o.result),a=new FileReader;a.onloadend=function(){var n=a.result,o=new FileReader;o.onloadend=function(){var r=o.result,a=t.loadShp(n,r,i,e);e.success(a)},o.readAsBinaryString(r)},a.readAsBinaryString(n)},o.readAsBinaryString(i)},this.loadDBF=function(e){var i=function(i){var n=t.str(e,i,10),r=t.str(e,i+11,1),o=t.int8(e,i+16);return{name:n,type:r,length:o}},n=t.int8(e,0);if(4===n)throw"Level 7 dBASE not supported";for(var r=t.lint32(e,4),o=t.lint16(e,8),a=t.lint16(e,10),s=32,u=32,l=s,c=[];l<o-1;)c.push(i(l)),l+=u;for(var h=[],d=o;d<o+r*a;){var f=t.str(e,d,1);if("*"===f)d+=a;else{d+=1;for(var p={},m=0;m<c.length;m+=1){var g,v=c[m];"C"===v.type?g=t.str(e,d,v.length).trim():"N"===v.type&&(g=parseFloat(t.str(e,d,v.length))),d+=v.length,p[v.name]=g}h.push(p)}}return h},this.loadShp=function(e,a,s,u){u=u;var l,c=[],h=function(i,n,r){for(var o=[],a=r-1;a>=n;a-=1){var s=t.ldbl64(e,i+16*a),u=t.ldbl64(e,i+16*a+8);o.push([s,u])}return o},d=function(a){var s,u,l,d,f,p,m,g,v,y=a+8,x=t.lint32(e,y);if(x===i)console.log("NULL Shape");else if(x===n){var _=t.ldbl64(e,y+4),b=t.ldbl64(e,y+12);c.push({type:"Point",attr:{},geom:[[_,b]]})}else if(x===r){for(s=t.lint32(e,y+36),u=t.lint32(e,y+40),l=a+52,d=a+52+4*s,v=[],f=0;f<s;f+=1)p=t.lint32(e,l+4*f),m=f+1<s?t.lint32(e,l+4*(f+1)):u,g=h(d,p,m),v.push(g);c.push({type:"Polygon",attr:{},geom:[v]})}else{if(x!==o)throw"Not Implemented: "+x;for(s=t.lint32(e,y+36),u=t.lint32(e,y+40),l=a+52,d=a+52+4*s,v=[],f=0;f<s;f+=1)p=t.lint32(e,l+4*f),m=f+1<s?t.lint32(e,l+4*(f+1)):u,g=h(d,p,m),v.push(g);c.push({type:"Polyline",attr:{},geom:[v]})}},f=this.loadDBF(a);for(l=0;l<s.length;l+=1){var p=s[l];d(p)}var m=[];for(l=0;l<c.length;l+=1){var g=c[l];g.attr=f[l],m.push(g)}return m},this},e.vtkReader=function(){"use strict";if(!(this instanceof e.vtkReader))return new e.vtkReader;var t=["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","0","1","2","3","4","5","6","7","8","9","+","/"],i=[],n={},r=0,a=null,s=null,u=-1,l="",c=0,h=0,d=null,f=0;if(0===i.length)for(f=0;f<t.length;f+=1)i[t[f]]=f;return this.ntos=function(t){var e;return e=t.toString(16),1===e.length&&(e="0"+e),e="%"+e,unescape(e)},this.readReverseBase64=function(){var t;if(!l)return u;for(;;){if(c>=l.length)return u;if(t=l.charAt(c),c+=1,i[t])return i[t];if("A"===t)return 0}return u},this.decode64=function(t){var e="",i=new Array(4),n=!1;for(l=t,c=0;!n&&(i[0]=this.readReverseBase64())!==u&&(i[1]=this.readReverseBase64())!==u;)i[2]=this.readReverseBase64(),i[3]=this.readReverseBase64(),e+=this.ntos(i[0]<<2&255|i[1]>>4),i[2]!==u?(e+=this.ntos(i[1]<<4&255|i[2]>>2),i[3]!==u?e+=this.ntos(i[2]<<6&255|i[3]):n=!0):n=!0;return e},this.readNumber=function(t){var e=t[h++]+(t[h++]<<8)+(t[h++]<<16)+(t[h++]<<24);return e},this.readF3Array=function(t,e){var i,n=4*t*3,r=new Int8Array(n),o=null;for(i=0;i<n;i+=1)r[i]=e[h],h+=1;return o=new Float32Array(r.buffer)},this.readColorArray=function(t,e,i){var n,r=0,o=new Array(3*t);for(n=0;n<t;n+=1)o[r++]=e[h++]/255,o[r++]=e[h++]/255,o[r++]=e[h++]/255,h++;i.insert(o)},this.parseObject=function(t){var i,n,r,a,s,u,l,c,p,m,g,v=new e.geometryData,y=e.mapper(),x=[],_=null,b=null,w=null,M=null;for(b=atob(t.data),f=0;f<b.length;f+=1)x[f]=255&b.charCodeAt(f);if(h=0,i=this.readNumber(x),_=String.fromCharCode(x[h]),h+=1,v.setName(_),"L"===_)w=this.parseLineData(v,x),M=e.utils.createGeometryMaterial();else if("M"===_)w=this.parseMeshData(v,x),M=e.utils.createPhongMaterial();else if("P"===_)w=this.parsePointData(v,x),M=e.utils.createGeometryMaterial();else{if("C"===_){for(r=this.parseColorMapData(v,x,i),l=[],f=0;f<r.colors.length;f+=1)l.push(r.colors[f][1]),l.push(r.colors[f][2]),l.push(r.colors[f][3]),l.push(255*r.colors[f][0]);return u=new e.lookupTable,u.setColorTable(l),c=d.renderWindow().windowSize(),p=r.size[0]*c[0],m=r.size[1]*c[1],g=[r.position[0]*c[0],(1-r.position[1])*c[1],0],g[1]=g[1]-m,m=30,e.utils.createColorLegend(r.title,u,g,p,m,3,0)}console.log("Ignoring unrecognized encoded data type "+_)}return y.setGeometryData(v),t.hasTransparency&&(a=M.shaderProgram(),s=a.uniform("opacity"),console.log("opacity ",t.opacity),s.set(t.opacity),M.setBinNumber(1e3)),n=e.actor(),n.setMapper(y),n.setMaterial(M),n.setMatrix(o.transpose(o.create(),w)),[n]},this.parseLineData=function(t,i){var n,r,a,s,u,l,c,d,f=null,p=null,m=null,g=o.create(),v=null,y=0;for(r=this.readNumber(i),v=new Array(3*r),f=new e.sourceDataP3fv,a=this.readF3Array(r,i),d=0;d<r;d+=1)v[y++]=a[3*d],v[y++]=a[3*d+1],v[y++]=a[3*d+2];for(f.insert(v),t.addSource(f),p=new e.sourceDataC3fv,this.readColorArray(r,i,p),t.addSource(p),m=new e.lines,t.addPrimitive(m),n=this.readNumber(i),s=new Int8Array(2*n),d=0;d<2*n;d+=1)s[d]=i[h],h+=1;for(u=new Uint16Array(s.buffer),m.setIndices(u),m.setPrimitiveType(e.GL.LINES),l=64,s=new Int8Array(l),d=0;d<l;d+=1)s[d]=i[h],h+=1;return c=new Float32Array(s.buffer),o.copy(g,c),g},this.parseMeshData=function(t,i){var n,r,a,s,u,l,c,d,f=null,p=null,m=null,g=o.create(),v=null,y=null,x=0;for(r=this.readNumber(i),y=new Array(6*r),f=new e.sourceDataP3N3f,a=this.readF3Array(r,i),m=this.readF3Array(r,i),d=0;d<r;d+=1)y[x++]=a[3*d],y[x++]=a[3*d+1],y[x++]=a[3*d+2],y[x++]=m[3*d],y[x++]=m[3*d+1],y[x++]=m[3*d+2];for(f.insert(y),t.addSource(f),p=new e.sourceDataC3fv,this.readColorArray(r,i,p),t.addSource(p),s=[],v=new e.triangles,n=this.readNumber(i),s=new Int8Array(2*n),d=0;d<2*n;d+=1)s[d]=i[h],h+=1;for(u=new Uint16Array(s.buffer),v.setIndices(u),t.addPrimitive(v),l=64,s=new Int8Array(l),d=0;d<l;d+=1)s[d]=i[h],h+=1;return c=new Float32Array(s.buffer),o.copy(g,c),g},this.parsePointData=function(t,i){var n,r,a,s,u,l,c=o.create(),d=null,p=null,m=null,g=null,v=0;for(n=this.readNumber(i),g=new Array(3*n),d=new e.sourceDataP3fv,r=this.readF3Array(n,i),a=new Uint16Array(n),f=0;f<n;f+=1)a[f]=f,g[v++]=r[3*f],g[v++]=r[3*f+1],g[v++]=r[3*f+2];for(d.insert(g),t.addSource(d),p=new e.sourceDataC3fv,this.readColorArray(n,i,p),t.addSource(p),m=new e.points,m.setIndices(a),t.addPrimitive(m),u=64,s=new Int8Array(u),f=0;f<u;f+=1)s[f]=i[h],h+=1;return l=new Float32Array(s.buffer),o.copy(c,l),c},this.parseColorMapData=function(t,e,i){var n,r,o,a,s,u={};for(u.numOfColors=i,r=8,n=new Int8Array(r),a=0;a<r;a+=1)n[a]=e[h],h+=1;for(u.position=new Float32Array(n.buffer),r=8,n=new Int8Array(r),a=0;a<r;a+=1)n[a]=e[h],h+=1;for(u.size=new Float32Array(n.buffer),u.colors=[],s=0;s<u.numOfColors;s+=1){for(n=new Int8Array(4),a=0;a<4;a+=1)n[a]=e[h],h+=1;o=[new Float32Array(n.buffer)[0],e[h++],e[h++],e[h++]],u.colors[s]=o}for(u.orientation=e[h++],u.numOfLabels=e[h++],u.title="";h<e.length;)u.title+=String.fromCharCode(e[h++]);return u},this.parseSceneMetadata=function(t,e){var i,n,r,o=a.Renderers[e],u=t.camera();n=(o.size[0]-o.origin[0])*s.width,r=(o.size[1]-o.origin[1])*s.height,t.resize(n,r),u.setCenterOfRotation([o.LookAt[1],o.LookAt[2],o.LookAt[3]]),u.setViewAngleDegrees(o.LookAt[0]),u.setPosition(o.LookAt[7],o.LookAt[8],o.LookAt[9]),u.setFocalPoint(o.LookAt[1],o.LookAt[2],o.LookAt[3]),u.setViewUpDirection(o.LookAt[4],o.LookAt[5],o.LookAt[6]),0===e?(i=o.Background1,t.setBackgroundColor(i[0],i[1],i[2],1)):t.setResizable(!1),t.setLayer(e)},this.initScene=function(){var t,e;if(null===a)return d;for(e=a.Renderers.length-1;e>=0;e-=1)t=this.getRenderer(e),this.parseSceneMetadata(t,e);return d},this.createViewer=function(t){var i;return null===d&&(s=t,d=e.viewer(t),d.init(),d.renderWindow().removeRenderer(d.renderWindow().activeRenderer()),d.renderWindow().addRenderer(new e.depthPeelRenderer),n[0]=d.renderWindow().activeRenderer(),d.renderWindow().resize(t.width,t.height),i=e.pvwInteractorStyle(),d.setInteractorStyle(i)),d},this.deleteViewer=function(){n={},d=null},this.updateCanvas=function(t){return s=t,d.renderWindow().resize(t.width,t.height),d},this.numObjects=function(){return r},this.getRenderer=function(t){var i;return i=n[t],null!==i&&"undefined"!=typeof i||(i=new e.renderer,i.setResetScene(!1),i.setResetClippingRange(!1),d.renderWindow().addRenderer(i),0!==t&&i.camera().setClearMask(e.GL.DepthBufferBit),n[t]=i),i},this.setVtkScene=function(t){a=t},this},e.DataBuffers=function(t){"use strict";if(!(this instanceof e.DataBuffers))return new e.DataBuffers(t);var i,n={};i=t||0===t?t:256;var r=0,o=function(t,e,i,n){if(!t)throw"No destination";i||(i=0),n||(n=e.length);for(var r=0;r<n;r+=1)t[i+r]=e[r]},a=function(t){var e=i;for(2*e<t&&(e=t);e<t;)e*=2;i=e;for(var r in n)if(n.hasOwnProperty(r)){var a=new Float32Array(e*n[r].len),s=n[r].array;o(a,s),n[r].array=a,n[r].dirty=!0}};this.create=function(t,e){if(!e||e<0)throw"Length of buffer must be a positive integer";var r=new Float32Array(i*e);return n[t]={array:r,len:e,dirty:!1},n[t].array},this.alloc=function(t){r+t>=i&&a(r+t);var e=r;return r+=t,e},this.get=function(t){return n[t].array},this.write=function(t,e,r,a){if(r+a>i)throw"Write would exceed buffer size";o(n[t].array,e,r*n[t].len,a*n[t].len),n[t].dirty=!0},this.repeat=function(t,e,r,a){if(r+a>i)throw"Repeat would exceed buffer size";for(var s=0;s<a;s+=1)o(n[t].array,e,(r+s)*n[t].len,n[t].len);n[t].dirty=!0},this.count=function(){return r},this.data=function(t){return n[t].array}},e.depthPeelRenderer=function(){"use strict";function t(t,e){L.setMaterial(e),t.m_mapper=L.mapper(),t.m_material=e,t.m_material.bind(t),t.m_mapper.render(t),t.m_material.undoBind(t),L.setMaterial(null)}function i(t,i,n){console.log(i),console.log(n),L=e.utils.createPlane(0,0,0,1,0,0,0,1,0)}function n(t){var i,n,r,o,a,s,u,l,c,_,b,w,M;r=new e.vertexAttribute("vertexPosition"),s=new e.vertexAttribute("vertexNormal"),o=new e.vertexAttribute("vertexColor"),i=new e.modelViewUniform("modelViewMatrix"),u=new e.modelViewUniform("normalMatrix"),n=new e.projectionUniform("projectionMatrix"),d=new e.floatUniform("width"),f=new e.floatUniform("height"),y=new e.floatUniform("opacity",1),a=new e.uniform(e.GL.INT,"depthTexture"),a.set(0),S=new e.shaderProgram,S.loadShader(e.GL.VERTEX_SHADER,"front_peel.vert"),S.loadShader(e.GL.FRAGMENT_SHADER,"front_peel.frag"),S.addUniform(i),S.addUniform(u),S.addUniform(n),S.addUniform(a),S.addUniform(d),S.addUniform(f),S.addUniform(y),S.addVertexAttribute(r,e.vertexAttributeKeys.Position),S.addVertexAttribute(s,e.vertexAttributeKeys.Normal),S.addVertexAttribute(o,e.vertexAttributeKeys.Color),S.compileAndLink(t),A.addAttribute(S),P=new e.shaderProgram,P.loadShader(e.GL.VERTEX_SHADER,"blend.vert"),P.loadShader(e.GL.FRAGMENT_SHADER,"blend.frag"),c=new e.uniform(e.GL.INT,"currColorTexture"),_=new e.uniform(e.GL.INT,"prevDepthTexture"),b=new e.uniform(e.GL.INT,"currDepthTexture"),p=new e.floatUniform("width"),m=new e.floatUniform("height"),c.set(0),_.set(1),b.set(2),l=new e.vertexAttribute("vertexPosition"),P.addUniform(c),P.addUniform(_),P.addUniform(_),P.addUniform(p),P.addUniform(m),P.addVertexAttribute(l,e.vertexAttributeKeys.Position),P.compileAndLink(t),E.addAttribute(P),h=new e.shaderProgram,h.loadShader(e.GL.VERTEX_SHADER,"blend.vert"),h.loadShader(e.GL.FRAGMENT_SHADER,"final.frag"),M=new e.uniform(e.GL.INT,"colorTexture"),g=new e.floatUniform("width"),v=new e.floatUniform("height"),x=new e.uniform(e.GL.FLOAT_VEC3,"backgroundColor"),M.set(0),w=new e.vertexAttribute("vertexPosition"),h.addUniform(M),h.addUniform(g),h.addUniform(v),h.addUniform(x),h.addVertexAttribute(w,e.vertexAttributeKeys.Position),h.compileAndLink(t),C.addAttribute(h)}function r(t,i,n){var r,o,a,s,u;s=t.m_context.getExtension("WEBKIT_WEBGL_depth_texture"),s||(s=t.m_context.getExtension("WEBGL_depth_texture"),s||console.log("Depth textures are not supported"));var h=t.m_context.getExtension("OES_texture_float");if(h||console.log("float textures are not supported"),o=t.m_context.getExtension("OES_texture_float"),!o)return console.log("Extension Texture Float is not working"),void window.alert(":( Sorry, Your browser doesn't support texture float extension.");if(a=t.m_context.getExtension("OES_texture_float_linear"),s=t.m_context.getExtension("WEBGL_depth_texture"),!s)return console.log("Extension Depth texture is not working"),void window.alert(":( Sorry, Your browser doesn't support depth texture extension.");for(u=a?e.GL.LINEAR:e.GL.NEAREST,b.push(t.m_context.createFramebuffer()),b.push(t.m_context.createFramebuffer()),w.push(t.m_context.createTexture()),w.push(t.m_context.createTexture()),M.push(t.m_context.createTexture()),M.push(t.m_context.createTexture()),r=0;r<2;r+=1)t.m_context.bindTexture(e.GL.TEXTURE_2D,M[r]),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MAG_FILTER,e.GL.NEAREST),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MIN_FILTER,e.GL.NEAREST),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_S,e.GL.CLAMP_TO_EDGE),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_T,e.GL.CLAMP_TO_EDGE),t.m_context.texImage2D(e.GL.TEXTURE_2D,0,e.GL.DEPTH_COMPONENT,i,n,0,e.GL.DEPTH_COMPONENT,e.GL.UNSIGNED_SHORT,null),t.m_context.bindTexture(e.GL.TEXTURE_2D,w[r]),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MAG_FILTER,u),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MIN_FILTER,u),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_S,e.GL.CLAMP_TO_EDGE),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_T,e.GL.CLAMP_TO_EDGE),t.m_context.texImage2D(e.GL.TEXTURE_2D,0,e.GL.RGBA,i,n,0,e.GL.RGBA,e.GL.FLOAT,null),t.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,b[r]),t.m_context.framebufferTexture2D(e.GL.FRAMEBUFFER,e.GL.DEPTH_ATTACHMENT,e.GL.TEXTURE_2D,M[r],0),t.m_context.framebufferTexture2D(e.GL.FRAMEBUFFER,e.GL.COLOR_ATTACHMENT0,e.GL.TEXTURE_2D,w[r],0);l=t.m_context.createTexture(),t.m_context.bindTexture(e.GL.TEXTURE_2D,l),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_S,e.GL.CLAMP_TO_EDGE),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_WRAP_T,e.GL.CLAMP_TO_EDGE),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MIN_FILTER,e.GL.NEAREST),t.m_context.texParameteri(e.GL.TEXTURE_2D,e.GL.TEXTURE_MAG_FILTER,e.GL.NEAREST),t.m_context.texImage2D(e.GL.TEXTURE_2D,0,e.GL.RGBA,i,n,0,e.GL.RGBA,e.GL.FLOAT,null),c=t.m_context.createFramebuffer(),t.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,c),t.m_context.framebufferTexture2D(e.GL.FRAMEBUFFER,e.GL.DEPTH_ATTACHMENT,e.GL.TEXTURE_2D,M[0],0),t.m_context.framebufferTexture2D(e.GL.FRAMEBUFFER,e.GL.COLOR_ATTACHMENT0,e.GL.TEXTURE_2D,l,0);var d=t.m_context.checkFramebufferStatus(e.GL.FRAMEBUFFER);d===e.GL.FRAMEBUFFER_COMPLETE?console.log("FBO setup successful !!! \n"):console.log("Problem with FBO setup"),t.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,null)}function a(t){T.getMTime()<_.getMTime()&&(i(t,_.width(),_.height()),n(t,_.width(),_.height()),r(t,_.width(),_.height()),T.modified())}function s(t,i,n){var r,a,s=o.create();for(r=0;r<i.length;r+=1)if(a=i[r][2],a.referenceFrame()===e.boundingObject.ReferenceFrame.Relative?(o.multiply(t.m_modelViewMatrix,_.m_camera.viewMatrix(),a.matrix()),t.m_projectionMatrix=_.m_camera.projectionMatrix()):(t.m_modelViewMatrix=a.matrix(),t.m_projectionMatrix=o.create(),o.ortho(t.m_projectionMatrix,0,_.m_width,0,_.m_height,-1,1)),o.invert(s,t.m_modelViewMatrix),o.transpose(t.m_normalMatrix,s),t.m_mapper=a.mapper(),n){var u=a.material().shaderProgram().uniform("opacity");u?y.set(u.get()[0]):y.set(1),t.m_material=n,t.m_material.bind(t),t.m_mapper.render(t),t.m_material.undoBind(t)}else t.m_material=a.material(),t.m_material.bind(t),t.m_mapper.render(t),t.m_material.undoBind(t)}function u(i,n){var r;d.set(_.width()),f.set(_.height()),p.set(_.width()),m.set(_.height()),g.set(_.width()),v.set(_.height()),i.m_context.clearColor(0,0,0,0),i.m_context.clear(e.GL.OLOR_BUFFER_BIT|e.GL.DEPTH_BUFFER_BIT),i.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,c),i.m_context.enable(e.GL.DEPTH_TEST),i.m_context.disable(e.GL.BLEND);var o=_.m_camera.clearColor();i.m_context.clearColor(o[0],o[1],o[2],0),i.m_context.clear(e.GL.COLOR_BUFFER_BIT|e.GL.DEPTH_BUFFER_BIT),s(i,n);var a=2*(R-1);for(r=1;r<a;r+=1){var u=r%2,h=1-u;i.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,b[u]),i.m_context.disable(e.GL.BLEND),i.m_context.enable(e.GL.DEPTH_TEST),i.m_context.bindTexture(e.GL.TEXTURE_2D,M[h]),i.m_context.clearColor(0,0,0,0),i.m_context.clear(e.GL.COLOR_BUFFER_BIT|e.GL.DEPTH_BUFFER_BIT),s(i,n,A),i.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,c),i.m_context.disable(e.GL.DEPTH_TEST),i.m_context.enable(e.GL.BLEND),i.m_context.blendEquation(e.GL.FUNC_ADD),i.m_context.blendFuncSeparate(e.GL.DST_ALPHA,e.GL.ONE,e.GL.ZERO,e.GL.ONE_MINUS_SRC_ALPHA),i.m_context.activeTexture(e.GL.TEXTURE0),i.m_context.bindTexture(e.GL.TEXTURE_2D,w[u]),i.m_context.activeTexture(e.GL.TEXTURE1),i.m_context.bindTexture(e.GL.TEXTURE_2D,M[h]),i.m_context.activeTexture(e.GL.TEXTURE2),i.m_context.bindTexture(e.GL.TEXTURE_2D,M[u]),t(i,E),i.m_context.activeTexture(e.GL.TEXTURE0),i.m_context.disable(e.GL.BLEND)}i.m_context.bindFramebuffer(e.GL.FRAMEBUFFER,null),i.m_context.disable(e.GL.DEPTH_TEST),i.m_context.disable(e.GL.BLEND),i.m_context.bindTexture(e.GL.TEXTURE_2D,l),x.set(_.m_camera.clearColor()),t(i,C),i.m_context.bindTexture(e.GL.TEXTURE_2D,null)}if(!(this instanceof e.depthPeelRenderer))return new e.depthPeelRenderer;e.renderer.call(this);var l,c,h,d,f,p,m,g,v,y,x,_=this,b=[],w=[],M=[],T=e.timestamp(),A=e.material(),E=e.material(),C=e.material(),S=null,P=null,R=6,L=null;this.render=function(){var t,i,n,r=null,o=[];for(i=new e.renderState,i.m_renderer=_,i.m_context=_.renderWindow().context(),i.m_contextChanged=_.m_contextChanged,i.m_context.viewport(_.m_x,_.m_y,_.m_width,_.m_height),a(i),n=_.m_sceneRoot.children(),n.length>0&&_.m_resetScene&&(this.resetCamera(),_.m_resetScene=!1),t=0;t<n.length;t+=1)r=n[t],r.computeBounds(),r.visible()&&o.push([r.material().binNumber(),r.material().shaderProgram().uniform("opacity").get()[0],r]);o.sort(function(t,e){return t[0]-e[0]}),o.sort(function(t,e){return e[1]-t[1]}),u(i,o)}},inherit(e.depthPeelRenderer,e.renderer),e})},function(t,e,i){t.exports={create:i(89),clone:i(90),copy:i(91),identity:i(92),transpose:i(93),invert:i(94),adjoint:i(95),determinant:i(96),multiply:i(97),translate:i(98),scale:i(99),rotate:i(100),rotateX:i(101),rotateY:i(102),rotateZ:i(103),fromRotationTranslation:i(104),fromQuat:i(105),frustum:i(106),perspective:i(107),perspectiveFromFieldOfView:i(108),ortho:i(109),lookAt:i(110),str:i(111)}},function(t,e){function i(){var t=new Float32Array(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}t.exports=i},function(t,e){function i(t){var e=new Float32Array(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e}t.exports=i},function(t,e){function i(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t}t.exports=i},function(t,e){function i(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}t.exports=i},function(t,e){function i(t,e){if(t===e){var i=e[1],n=e[2],r=e[3],o=e[6],a=e[7],s=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=i,t[6]=e[9],t[7]=e[13],t[8]=n,t[9]=o,t[11]=e[14],t[12]=r,t[13]=a,t[14]=s}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t}t.exports=i},function(t,e){function i(t,e){var i=e[0],n=e[1],r=e[2],o=e[3],a=e[4],s=e[5],u=e[6],l=e[7],c=e[8],h=e[9],d=e[10],f=e[11],p=e[12],m=e[13],g=e[14],v=e[15],y=i*s-n*a,x=i*u-r*a,_=i*l-o*a,b=n*u-r*s,w=n*l-o*s,M=r*l-o*u,T=c*m-h*p,A=c*g-d*p,E=c*v-f*p,C=h*g-d*m,S=h*v-f*m,P=d*v-f*g,R=y*P-x*S+_*C+b*E-w*A+M*T;return R?(R=1/R,t[0]=(s*P-u*S+l*C)*R,t[1]=(r*S-n*P-o*C)*R,t[2]=(m*M-g*w+v*b)*R,t[3]=(d*w-h*M-f*b)*R,t[4]=(u*E-a*P-l*A)*R,t[5]=(i*P-r*E+o*A)*R,t[6]=(g*_-p*M-v*x)*R,t[7]=(c*M-d*_+f*x)*R,t[8]=(a*S-s*E+l*T)*R,t[9]=(n*E-i*S-o*T)*R,t[10]=(p*w-m*_+v*y)*R,t[11]=(h*_-c*w-f*y)*R,t[12]=(s*A-a*C-u*T)*R,t[13]=(i*C-n*A+r*T)*R,t[14]=(m*x-p*b-g*y)*R,t[15]=(c*b-h*x+d*y)*R,t):null}t.exports=i},function(t,e){function i(t,e){var i=e[0],n=e[1],r=e[2],o=e[3],a=e[4],s=e[5],u=e[6],l=e[7],c=e[8],h=e[9],d=e[10],f=e[11],p=e[12],m=e[13],g=e[14],v=e[15];return 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-	 * Code taken from https://github.com/Leaflet/Leaflet.markercluster
-	 * to support faster hierarchical clustering of features.
-	 * @copyright 2012, David Leaver
-	 */
-var n=i(1),r={};r.Util={stamp:function(t){return t._leaflet_id=t._leaflet_id||++r.Util.lastId,t._leaflet_id},lastId:0};var o=function(t){this._cellSize=t,this._sqCellSize=t*t,this._grid={},this._objectPoint={}};o.prototype={addObject:function(t,e){var i=this._getCoord(e.x),n=this._getCoord(e.y),o=this._grid,a=o[n]=o[n]||{},s=a[i]=a[i]||[],u=r.Util.stamp(t);e.obj=t,this._objectPoint[u]=e,s.push(t)},updateObject:function(t,e){this.removeObject(t),this.addObject(t,e)},removeObject:function(t,e){var i,n,o=this._getCoord(e.x),a=this._getCoord(e.y),s=this._grid,u=s[a]=s[a]||{},l=u[o]=u[o]||[];for(delete this._objectPoint[r.Util.stamp(t)],i=0,n=l.length;i<n;i++)if(l[i]===t)return l.splice(i,1),1===n&&delete u[o],!0},eachObject:function(t,e){var i,n,r,o,a,s,u,l=this._grid;for(i in l){a=l[i];for(n in a)for(s=a[n],r=0,o=s.length;r<o;r++)u=t.call(e,s[r]),u&&(r--,o--)}},getNearObject:function(t){var e,i,n,o,a,s,u,l,c=this._getCoord(t.x),h=this._getCoord(t.y),d=this._objectPoint,f=this._sqCellSize,p=null;for(e=h-1;e<=h+1;e++)if(o=this._grid[e])for(i=c-1;i<=c+1;i++)if(a=o[i])for(n=0,s=a.length;n<s;n++)u=a[n],l=this._sqDist(d[r.Util.stamp(u)],t),l<f&&(f=l,p=u);return p},contents:function(){return n.map(this._objectPoint,function(t){return t})},_getCoord:function(t){return Math.floor(t/this._cellSize)},_sqDist:function(t,e){var i=e.x-t.x,n=e.y-t.y;return i*i+n*n}},t.exports=o},function(t,e,i){function n(t,e,i){this._group=t,this._zoom=e,this._points=[],this._clusters=[],this._count=0,this._parent=null,this._coord=null;var n=this;(i||[]).forEach(function(t){n._add(t)})}function r(t,e,r){var a=i(204);this._opts=o.extend({maxZoom:18,radius:.05},t),this._opts.width=this._opts.width||e||256,this._opts.height=this._opts.height||r||256,this._clusters={},this._points={};var s,u;for(s=this._opts.maxZoom;s>=0;s-=1)u=this._scaleAtLevel(s,this._opts.width,this._opts.height),this._clusters[s]=new a(u),this._points[s]=new a(u);this._topClusterLevel=new n(this,-1)}var o=i(1),a=i(86);n.prototype._add=function(t){var e=1;t instanceof n?(this._clusters.push(t),e=t._count):this._points.push(t),t._parent=this,this._increment(e)},n.prototype._increment=function(t){this._coord=null,this._count+=t,this._parent&&this._parent._increment(t)},n.prototype.count=function(){return this._count},n.prototype.each=function(t){var e;for(e=0;e<this._points.length;e+=1)t.call(this,this._points[e],this._zoom);for(e=0;e<this._clusters.length;e+=1)this._clusters[e].each.call(this._clusters[e],t)},n.prototype.coords=function(){var t,e={x:0,y:0};if(this._coord)return this._coord;for(t=0;t<this._points.length;t+=1)e.x+=this._points[t].x,e.y+=this._points[t].y;for(t=0;t<this._clusters.length;t+=1)e.x+=this._clusters[t].coords().x*this._clusters[t].count(),e.y+=this._clusters[t].coords().y*this._clusters[t].count();return{x:e.x/this.count(),y:e.y/this.count()}},r.prototype._scaleAtLevel=function(t,e,i){return a.zoomToHeight(t,e,i)/2*this._opts.radius},r.prototype.addPoint=function(t){var e,i,r,a,s,u;for(e=this._opts.maxZoom;e>=0;e-=1){if(i=this._clusters[e].getNearObject(t))return void i._add(t);if(i=this._points[e].getNearObject(t)){if(r=i._parent)for(u=r._points.length-1;u>=0;u-=1)if(r._points[u]===i){r._points.splice(u,1),r._increment(-1);break}for(r||o.noop(),a=new n(this,e,[i,t]),this._clusters[e].addObject(a,a.coords()),s=a,u=e-1;u>r._zoom;u-=1)s=new n(this,u,[s]),this._clusters[u].addObject(s,s.coords());for(r._add(s),u=e;u>=0&&this._points[u].removeObject(i,i);u-=1);return}this._points[e].addObject(t,t)}this._topClusterLevel._add(t)},r.prototype.points=function(t){return t=Math.min(Math.max(Math.floor(t),0),this._opts.maxZoom-1),this._points[Math.floor(t)].contents()},r.prototype.clusters=function(t){return t=Math.min(Math.max(Math.floor(t),0),this._opts.maxZoom-1),this._clusters[Math.floor(t)].contents()},t.exports=r},function(t,e,i){var n=i(8),r=i(207),o=i(209),a=i(11),s=function(t){"use strict";if(!(this instanceof s))return new s(t);var e=i(1);t=t||{},r.call(this,t);var n,u=this,l=this._init,c=o();return this.featureType="line",this._subfeatureStyles={lineCap:!0,lineJoin:!0,strokeColor:!0,strokeOffset:!0,strokeOpacity:!0,strokeWidth:!0},this.line=function(t){return void 0===t?u.style("line"):(u.style("line",t),u.dataTime().modified(),u.modified(),u)},this.position=function(t){return void 0===t?u.style("position"):(u.style("position",t),u.dataTime().modified(),u.modified(),u)},this._updatePointSearchInfo=function(){if(!(c.getMTime()>=u.dataTime().getMTime()&&c.getMTime()>=u.getMTime())){c.modified(),n=[];var t=u.data(),e=u.line(),i=u.style.get("strokeWidth"),r=u.position(),o=u.style.get("closed"),s=u.gcs(),l=u.layer().map().gcs();return t.forEach(function(t,u){var c,h,d,f=o(t,u),p=[];e(t,u).forEach(function(e,n){var o=r(e,n,t,u);s!==l&&(o=a.transformCoordinates(s,l,o));var 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0===t.visible||t.visible,m=void 0===t.bin?0:t.bin,g=void 0===t.renderer?null:t.renderer,v=a(),y=a(),x=a(),_=[],b=[];return this._subfeatureStyles={},this._bindMouseHandlers=function(){this.selectionAPI()&&(r._unbindMouseHandlers(),r.geoOn(s.mousemove,r._handleMousemove),r.geoOn(s.mouseclick,r._handleMouseclick),r.geoOn(s.brushend,r._handleBrushend),r.geoOn(s.brush,r._handleBrush))},this._unbindMouseHandlers=function(){r.geoOff(s.mousemove,r._handleMousemove),r.geoOff(s.mouseclick,r._handleMouseclick),r.geoOff(s.brushend,r._handleBrushend),r.geoOff(s.brush,r._handleBrush)},this.pointSearch=function(t){return{index:[],found:[]}},this.boxSearch=function(t,e,i){return[]},this._handleMousemove=function(){var t,e=r.layer().map().interactor().mouse(),i=r.data(),n=r.pointSearch(e.geo),o=[],a=[],l=-1,c=-1;(b.length||n.index.length)&&(t=n.extra||{},b.length&&(l=b[b.length-1]),o=n.index.filter(function(t){return b.indexOf(t)<0}),a=b.filter(function(t){return 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e=r.layer().map().interactor().mouse(),i=r.data(),n=r.pointSearch(e.geo),o=n.extra||{};e.buttonsDown=t.buttonsDown,u.eventID+=1,n.index.forEach(function(t,a){r.geoTrigger(s.feature.mouseclick,{data:i[t],index:t,extra:o[t],mouse:e,eventID:u.eventID,top:a===n.index.length-1},!0)})},this._handleBrush=function(t){var e=r.boxSearch(t.gcs.lowerLeft,t.gcs.upperRight),i=r.data();u.eventID+=1,e.forEach(function(e,n){r.geoTrigger(s.feature.brush,{data:i[e],index:e,mouse:t.mouse,brush:t,eventID:u.eventID,top:n===n.length-1},!0)})},this._handleBrushend=function(t){var e=r.boxSearch(t.gcs.lowerLeft,t.gcs.upperRight),i=r.data();u.eventID+=1,e.forEach(function(e,n){r.geoTrigger(s.feature.brushend,{data:i[e],index:e,mouse:t.mouse,brush:t,eventID:u.eventID,top:n===n.length-1},!0)})},this.style=function(t,e){return void 0===t?h:"string"==typeof t&&void 0===e?h[t]:void 0===e?(h=n.extend({},h,t),r.modified(),r):(h[t]=e,r.modified(),r)},this.style.get=function(t){var i;if(void 0===t){var n,o={};for(n in 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t=e.gcsToWorld(t,r.gcs()),t=e.worldToDisplay(t),g.baseToLocal&&(t=g.baseToLocal(t)),t},this.visible=function(t,e){if(void 0===t)return!(!e&&d&&d.visible&&!d.visible())&&p;if(p!==t||e){p=t,r.modified(),d&&d.visible&&!d.visible()&&(t=!1),t?r._bindMouseHandlers():r._unbindMouseHandlers();for(var i=0;i<_.length;i+=1)_[i].visible(p,e)}return r},this.dependentFeatures=function(t){return void 0===t?_.slice():(_=t.slice(),r)},this.bin=function(t){return void 0===t?m:(m=t,r.modified(),r)},this.dataTime=function(t){return void 0===t?v:(v=t,r.modified(),r)},this.buildTime=function(t){return void 0===t?y:(y=t,r.modified(),r)},this.updateTime=function(t){return void 0===t?x:(x=t,r.modified(),r)},this.data=function(t){return void 0===t?r.style("data")||[]:(r.style("data",t),r.dataTime().modified(),r.modified(),r)},this.selectionAPI=function(t,e){return void 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r=s.createFileReader("jsonReader",{layer:this});if(!r.canRead(t))return;return e===!0&&this.removeAllAnnotations(!0,!1),"update"===e&&l.each(this.annotations(),function(t,e){e.options("updated",!1)}),r.read(t,function(t){l.each(t.slice(),function(t,e){v._geojsonFeatureToAnnotation(e,i),v.deleteFeature(e)})}),"update"===e&&l.each(this.annotations(),function(t,e){e.options("updated")===!1&&e.state()===o.state.done&&v.removeAnnotation(e,!1)}),this.modified(),this.draw(),T.length}t=null;var a=[];return l.each(T,function(t,e){var r=e.geojson(i,n);r&&a.push(r)}),a.length&&(t={type:"FeatureCollection",features:a}),t},this._geojsonFeatureToAnnotation=function(t,e){var i=t.data(),n=s.listAnnotations();l.each(i,function(i,r){var c,h,d,f,p=(r.properties||{}).annotationType||t.featureType,m=l.extend({},r.properties||{});if(!(l.inArray(p,n)<0)){switch(m.style=m.style||{},m.labelStyle=m.labelStyle||{},delete 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n="grad"===i[2]?Math.PI/200:"deg"===i[2]?Math.PI/180:"turn"===i[2]?2*Math.PI:1;t=+i[1]*n;break;case"boolean":t=!!t&&["false","no","off"].indexOf((""+t).toLowerCase())<0;break;case"booleanOrNumber":if(!t&&0!==t&&""!==t||["true","false","off","on","no","yes"].indexOf((""+t).toLowerCase())>=0)t=!!t&&["false","no","off"].indexOf((""+t).toLowerCase())<0;else{if(!g.isNonNullFinite(t))return;t=+t}break;case"coordinate2":if(""===t)break;if(t&&g.isNonNullFinite(t.x)&&g.isNonNullFinite(t.y)){t.x=+t.x,t.y=+t.y;break}try{t=JSON.parse(t)}catch(t){}if(t&&g.isNonNullFinite(t.x)&&g.isNonNullFinite(t.y)){t.x=+t.x,t.y=+t.y;break}if(Array.isArray(t)&&g.isNonNullFinite(t[0])&&g.isNonNullFinite(t[1])){t={x:+t[0],y:+t[1]};break}if(i=/^\s*([-.0-9eE]+)(?:\s+|\s*,)\s*([-.0-9eE]+)\s*$/.exec(""+t),!i||!isFinite(i[1])||!isFinite(i[2]))return;t={x:+i[1],y:+i[2]};break;case"color":if(t=g.convertColor(t),void 0===t||void 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0!==c.rotation?a.rotation(c.rotation):c.rotationDelta&&a.rotation(a.rotation()+c.rotationDelta),(c.panX||c.panY)&&a.pan({x:c.panX||0,y:c.panY||0}))}},this.hasTouchSupport=function(){return"ontouchstart"in window||window.Modernizr&&window.Modernizr.touch||(navigator.msMaxTouchPoints||navigator.maxTouchPoints)>1},this._handleTouch=function(t){var e=!1;if("mouse"===t.pointerType&&g.touchSupport&&(e=!0),"hammer.input"===t.type){if("pan"!==g.lastEventType||1===t.pointers.length)return;e=!0,g.lastEventType=null}var i=/^(.*)(start|end|move)$/.exec(t.type);if(i&&3===i.length||(e=!0),e)return void(v.boundDocumentHandlers&&g.lastEvent&&P._handleMouseUpDocument(g.lastEvent));t.which=i[1];var n=(new Date).valueOf();"pan"===t.which&&"pan"!==g.lastEventType&&n-g.lastTime<d.touchPanDelay||(g.lastTime=n,g.lastEventType=t.which,g.lastEvent=t,void 0===t.pageX&&void 0!==t.center&&void 0!==t.center.x&&(t.pageX=t.center.x,t.pageY=t.center.y),"start"===i[2]&&(P._handleMouseDown(t),P._setClickMaybe(!1),v.boundDocumentHandlers&&w(document).on("mousemove.geojs",P._handleMouseUpDocument)),"start"!==i[2]&&"move"!==i[2]||(v.boundDocumentHandlers?P._handleMouseMoveDocument(t):P._handleMouseMove(t)),"end"!==i[2]&&"cancel"!==i[2]||(v.boundDocumentHandlers?P._handleMouseUpDocument(t):P._handleMouseUp(t),g.lastEvent=null))},this._connectEvents=function(){if(!d.map)return P;P._disconnectEvents(),x=w(d.map.node()),P._handleMouseWheel=h(),D=c(),o.adjustActions(d.actions);var t={};if(["right","pan","rotate"].forEach(function(e){t[e]=d.actions.some(function(t){return t.input[e]})}),x.on("wheel.geojs",P._handleMouseWheel),x.on("mousemove.geojs",P._handleMouseMove),x.on("mousedown.geojs",P._handleMouseDown),x.on("mouseup.geojs",P._handleMouseUp),x.on("dragstart",function(){return!1}),t.right&&x.on("contextmenu.geojs",function(){return!1}),d.keyboard&&d.keyboard.actions){p=a(x[0]);var e=[];for(var n in d.keyboard.actions)d.keyboard.actions.hasOwnProperty(n)&&(p.bind(d.keyboard.actions[n],function(t){return function(e,i){P._handleKeys(t,e,i)}}(n)),e=e.concat(d.keyboard.actions[n]));m=e}if(x.toggleClass("highlight-focus",m&&m.length&&d.keyboard.focusHighlight),(P.hasTouchSupport()||d.alwaysTouch)&&(t.pan||t.rotate)&&i.m[224]){var r=i(224);if(void 0!==r){var s=[],u=["hammer.input"];t.rotate&&(s.push([r.Rotate,{enable:!0}]),u=u.concat(["rotatestart","rotateend","rotatemove"])),t.pan&&(s.push([r.Pan,{direction:r.DIRECTION_ALL}]),u=u.concat(["panstart","panend","panmove"]));var l={recognizers:s,preventDefault:!0};g={manager:new r.Manager(x[0],l),touchSupport:P.hasTouchSupport(),lastTime:0},u.forEach(function(t){g.manager.on(t,P._handleTouch)})}}return P},this._disconnectEvents=function(){return m&&(p&&m.every(p.unbind,p),m=null,p=null),g&&(g.manager.destroy(),g=null),x&&(x.off(".geojs"),x=null),P._handleMouseWheel=function(){},D=function(){},P},this.map=function(t){return void 0!==t?(d.map=t,P._connectEvents(),P):d.map},this.options=function(t){return void 0===t?w.extend({},d):(w.extend(d,t),this._connectEvents(),P)},this._getMousePosition=function(t){var e,i,n=x.offset();i=(new Date).valueOf(),e=i-f.time,f.time=i,f.deltaTime=e,f.velocity={x:(t.pageX-f.page.x)/e,y:(t.pageY-f.page.y)/e},f.page={x:t.pageX,y:t.pageY},f.map={x:t.pageX-n.left,y:t.pageY-n.top};try{f.geo=P.map().displayToGcs(f.map),f.mapgcs=P.map().displayToGcs(f.map,null)}catch(t){f.geo=f.mapgcs=null}},this._getMouseButton=function(t){for(var e in f.buttons)f.buttons.hasOwnProperty(e)&&(f.buttons[e]=!1);if("mouseup"!==t.type)switch(t.which){case 1:f.buttons.left=!0;break;case 2:f.buttons.middle=!0;break;case 3:f.buttons.right=!0;break;default:t.which&&(f.buttons[t.which]=!0)}},this._getMouseModifiers=function(t){f.modifiers.alt=t.altKey,f.modifiers.ctrl=t.ctrlKey,f.modifiers.meta=t.metaKey,f.modifiers.shift=t.shiftKey},this._getSelection=function(){var t=v.origin,e=P.mouse(),i=P.map(),n={},r={};
-return n.upperLeft={x:Math.min(t.map.x,e.map.x),y:Math.min(t.map.y,e.map.y)},n.lowerRight={x:Math.max(t.map.x,e.map.x),y:Math.max(t.map.y,e.map.y)},n.upperRight={x:n.lowerRight.x,y:n.upperLeft.y},n.lowerLeft={x:n.upperLeft.x,y:n.lowerRight.y},r.upperLeft=i.displayToGcs(n.upperLeft,null),r.lowerRight=i.displayToGcs(n.lowerRight,null),r.upperRight=i.displayToGcs(n.upperRight,null),r.lowerLeft=i.displayToGcs(n.lowerLeft,null),_.data([{ul:r.upperLeft,ur:r.upperRight,ll:r.lowerLeft,lr:r.lowerRight}]),_.draw(),{display:n,gcs:r,mouse:e,origin:w.extend({},v.origin)}},this.cancel=function(t,e){var i;return i=t?v.action===t:!!v.action,i&&(e||(y={}),n()),i},this._setClickMaybe=function(t){k=t,b&&(window.clearTimeout(b),b=null)},this._handleMouseDown=function(t){var e,i;if(!L){P._getMousePosition(t),P._getMouseButton(t),P._getMouseModifiers(t),!d.click.enabled||f.buttons.left&&!d.click.buttons.left||f.buttons.right&&!d.click.buttons.right||f.buttons.middle&&!d.click.buttons.middle||(P._setClickMaybe({x:f.page.x,y:f.page.y,buttons:w.extend({},f.buttons)}),d.click.duration>0&&(b=window.setTimeout(function(){k=!1,b=null},d.click.duration))),i=C(f.buttons,f.modifiers,d.actions),e=(i||{}).action;var n=P.map();n.transitionCancel("_handleMouseDown"+(e?"."+e:"")),P.cancel(T.momentum),f.velocity={x:0,y:0},e&&(y={kind:"move"},v={action:e,actionRecord:i,origin:w.extend(!0,{},f),initialZoom:n.zoom(),initialRotation:n.rotation(),initialEventRotation:t.rotation,delta:{x:0,y:0}},i.selectionRectangle&&(R&&(R.clear(),n.deleteLayer(R),R=null),R=n.createLayer("feature",{features:[S.capabilities.color]}),_=R.createFeature("quad",{gcs:n.gcs()}),_.style({opacity:.25,color:{r:.3,g:.3,b:.3}}),n.geoTrigger(M.brushstart,P._getSelection())),n.geoTrigger(M.actiondown,{state:P.state(),mouse:P.mouse(),event:t}),d.throttle>0?w(document).on("mousemove.geojs",A(d.throttle,P._handleMouseMoveDocument)):w(document).on("mousemove.geojs",P._handleMouseMoveDocument),w(document).on("mouseup.geojs",P._handleMouseUpDocument),v.boundDocumentHandlers=!0)}},this._handleMouseMove=function(t){L||v.boundDocumentHandlers||(d.click.cancelOnMove&&k&&P._setClickMaybe(!1),P._getMousePosition(t),P._getMouseButton(t),P._getMouseModifiers(t),k||P.map().geoTrigger(M.mousemove,P.mouse()))},this._handleZoomrotate=function(t){var e=Math.log2(t.scale);if(!v.zoomrotateAllowZoom&&e&&Math.abs(e)>=Math.log2(1+d.zoomrotateMinimumZoom)&&(d.zoomrotateMinimumZoom&&(v.initialZoom-=e),v.zoomrotateAllowZoom=!0),v.zoomrotateAllowZoom&&e){var i=v.initialZoom+e;P.map().zoom(i,v.origin)}var n=(t.rotation-v.initialEventRotation)*Math.PI/180;if(!v.zoomrotateAllowRotation&&n&&Math.abs(n)>=d.zoomrotateMinimumRotation&&(d.zoomrotateMinimumRotation&&(v.initialEventRotation=t.rotation,n=0),v.zoomrotateAllowRotation=!0),v.zoomrotateAllowRotation){var r=v.initialRotation+n;n=((r-P.map().rotation())%(2*Math.PI)+3*Math.PI)%(2*Math.PI)-Math.PI,n&&(n*(v.lastRotationDelta||0)>=0||Math.abs(n)>=d.zoomrotateReverseRotation)&&(P.map().rotation(r,v.origin),v.lastRotationDelta=n)}var o=v.origin.page;if(v.initialEventGeo){var a=x.offset();o=P.map().gcsToDisplay(v.initialEventGeo),o.x+=a.left,o.y+=a.top}var s=t.pageX,u=s-o.x,l=t.pageY,c=l-o.y,h=u*u+c*c;!v.zoomrotateAllowPan&&h&&h>=d.zoomrotateMinimumPan*d.zoomrotateMinimumPan&&(d.zoomrotateMinimumPan?(u=c=0,v.initialEventGeo=P.mouse().geo):v.initialEventGeo=v.origin.geo,v.zoomrotateAllowPan=!0),v.zoomrotateAllowPan&&(u||c)&&P.map().pan({x:u,y:c})},this._handleMouseMoveDocument=function(t){var e,i,n;if(P.map()&&!L&&"move"===y.kind&&(P._getMousePosition(t),P._getMouseButton(t),P._getMouseModifiers(t),!d.click.cancelOnMove||void 0!==k.x&&f.page.x===k.x&&f.page.y===k.y||P._setClickMaybe(!1),!k)){if(!v.action)return void console.log("WARNING: Invalid state in mapInteractor.");if(e=f.map.x-v.origin.map.x-v.delta.x,i=f.map.y-v.origin.map.y-v.delta.y,v.delta.x+=e,v.delta.y+=i,v.action===T.pan)P.map().pan({x:e,y:i},void 0,"limited");else if(v.action===T.zoom)D(-i*d.zoomScale/120,v);else if(v.action===T.rotate){var r,o;void 0===v.origin.rotation&&(r=v.origin.map.x-P.map().size().width/2,o=v.origin.map.y-P.map().size().height/2,v.origin.rotation=P.map().rotation()-Math.atan2(o,r)),r=f.map.x-P.map().size().width/2,o=f.map.y-P.map().size().height/2,P.map().rotation(v.origin.rotation+Math.atan2(o,r))}else v.action===T.zoomrotate?P._handleZoomrotate(t):v.actionRecord.selectionRectangle&&(n=P._getSelection(),P.map().geoTrigger(M.brush,n));P.map().geoTrigger(M.actionmove,{state:P.state(),mouse:P.mouse(),event:t}),t.preventDefault()}},this._zoomFromSelection=function(t,e,i){if((t===T.zoomselect||t===T.unzoomselect)&&e.x!==i.x&&e.y!==i.y){var n,r,o=P.map(),a=o.size(),s={x:Math.abs((i.x-e.x)/a.width),y:Math.abs((i.y-e.y)/a.height)};if(t===T.zoomselect?(r=o.displayToGcs({x:(e.x+i.x)/2,y:(e.y+i.y)/2},null),n=o.zoom()-Math.log2(Math.max(s.x,s.y))):(n=o.zoom()+Math.log2(Math.max(s.x,s.y)),r=o.center(void 0,null)),o.discreteZoom()&&(n=Math.floor(n)),o.zoom(n),t===T.zoomselect)o.center(r,null);else{var u=o.gcsToDisplay(r,null);o.pan({x:(e.x+i.x)/2-u.x,y:(e.y+i.y)/2-u.y})}}},this._handleMouseUpDocument=function(t){var e,i;if(!L&&(y={},P._setClickMaybe(!1),P._getMouseButton(t),P._getMouseModifiers(t),w(document).off(".geojs"),v.boundDocumentHandlers=!1,f.buttons.right&&t.preventDefault(),v.actionRecord&&v.actionRecord.selectionRectangle&&(P._getMousePosition(t),e=P._getSelection(),R.clear(),P.map().deleteLayer(R),R=null,_=null,P.map().geoTrigger(M.brushend,e),v.actionRecord.selectionRectangle!==!0&&P.map().geoTrigger(v.actionRecord.selectionRectangle,e),P._zoomFromSelection(v.action,e.display.lowerLeft,e.display.upperRight),P.map().geoTrigger(M.actionselection,{state:P.state(),mouse:P.mouse(),event:t,lowerLeft:e.display.lowerLeft,upperRight:e.display.upperRight})),P.map().geoTrigger(M.actionup,{state:P.state(),mouse:P.mouse(),event:t}),i=v.action,n(),d.momentum.enabled&&w.inArray(i,d.momentum.actions)>=0)){var r=(new Date).valueOf(),o=r-f.time+f.deltaTime;r-f.time<d.momentum.stopTime?(f.velocity.x*=f.deltaTime/o,f.velocity.y*=f.deltaTime/o,f.deltaTime=o):f.velocity.x=f.velocity.y=0,P.springBack(!0,i)}},this._handleMouseUp=function(t){L||(P._getMouseButton(t),k&&P._handleMouseClick(t))},this._handleMouseClick=function(t){v.actionRecord&&v.actionRecord.selectionRectangle&&(R.clear(),P.map().deleteLayer(R),R=null,_=null,v.action=v.actionRecord=null),P._getMouseButton(t),P._getMouseModifiers(t),P.cancel(T.pan),w(document).off(".geojs"),v.boundDocumentHandlers=!1;var e=P.mouse();e.buttonsDown=k.buttons,P._setClickMaybe(!1),P.map().geoTrigger(M.mouseclick,e)},this._handleMouseWheel=function(){},this.springBack=function(t,i){v.action!==T.momentum&&(t||(f.velocity={x:0,y:0}),v.origAction=i,v.action=T.momentum,v.origin=P.mouse(),v.momentum=P.mouse(),v.start=new Date,v.handler=function(){var t,i,r,o;if(v.action===T.momentum&&P.map()&&!P.map().transition()){if(o=Math.min(v.momentum.deltaTime,30),r=v.start.valueOf(),v.start=new Date,t=u(v.momentum.velocity,v.start-r),!t)return void n();switch(i=e(t),i>d.momentum.maxSpeed&&(i=d.momentum.maxSpeed/i,t.x=t.x*i,t.y=t.y*i),isFinite(t.x)&&isFinite(t.y)||(t.x=0,t.y=0),v.momentum.velocity.x=t.x,v.momentum.velocity.y=t.y,v.origAction){case T.zoom:var a=v.momentum.velocity.y*o;D(-a*d.zoomScale/120,v);break;default:P.map().pan({x:v.momentum.velocity.x*o,y:v.momentum.velocity.y*o},void 0,"limited")}v.handler&&P.map().scheduleAnimationFrame(v.handler)}},v.handler&&P.map().scheduleAnimationFrame(v.handler))},this._handleDoubleClick=function(){},this.destroy=function(){P._disconnectEvents(),P.map()&&w(P.map().node()).removeClass("highlight-focus"),P.map(null)},this.mouse=function(){return w.extend(!0,{},f)},this.keyboard=function(t){return void 0===t?w.extend(!0,{},d.keyboard||{}):P.options({keyboard:t})},this.state=function(){return w.extend(!0,{},v)},this.pause=function(t){return void 0===t?L:(L=!!t,P)},this.addAction=function(t,e){t&&t.action&&t.input&&(o.addAction(d.actions,t,e),d.map&&d.actions.some(function(t){return t.input.right})&&(x.off("contextmenu.geojs"),x.on("contextmenu.geojs",function(){return!1})))},this.hasAction=function(t,e,i){return o.hasAction(d.actions,t,e,i)},this.removeAction=function(t,e,i){var n=o.removeAction(d.actions,t,e,i);return d.map&&!d.actions.some(function(t){return t.input.right})&&x.off("contextmenu.geojs"),n},this.simulateEvent=function(t,e){var i,n,r,o;if(!P.map())return P;if("keyboard"===t&&p){var a={shiftKey:e.shift||e.shiftKey||!1,ctrlKey:e.ctrl||e.ctrlKey||!1,altKey:e.alt||e.altKey||!1,metaKey:e.meta||e.metaKey||!1,toString:function(){return e.keys},stopPropagation:function(){},preventDefault:function(){},simulated:!0};return void p.trigger(a)}n=e.page||{},e.map&&(r=x.offset(),n.x=e.map.x+r.left,n.y=e.map.y+r.top),"left"===e.button?o=1:"right"===e.button?o=3:"middle"===e.button&&(o=2),e.modifiers=e.modifiers||[],e.wheelDelta=e.wheelDelta||{},i=w.Event(t,{pageX:n.x,pageY:n.y,which:o,altKey:e.modifiers.indexOf("alt")>=0,ctrlKey:e.modifiers.indexOf("ctrl")>=0,metaKey:e.modifiers.indexOf("meta")>=0,shiftKey:e.modifiers.indexOf("shift")>=0,center:e.center,rotation:e.touch?e.rotation||0:e.rotation,scale:e.touch?e.scale||1:e.scale,pointers:e.pointers,pointerType:e.pointerType,originalEvent:{deltaX:e.wheelDelta.x,deltaY:e.wheelDelta.y,deltaMode:e.wheelMode,preventDefault:function(){},stopPropagation:function(){},stopImmediatePropagation:function(){}}}),e.touch&&g?P._handleTouch(i):x.trigger(i),t.indexOf(".geojs")>=0&&w(document).trigger(i)},this._connectEvents(),this};n(s,r),t.exports=s},function(t,e,i){var n=i(1),r=i(8),o=i(207),a=function(t){"use strict";var e=i(11),r=i(83);if(!(this instanceof a))return new a(t);t=t||{},o.call(this,t);var s,u,l=this,c=this._init,h=0,d=[];return this._objectListStart=function(t){n.each(t,function(t,e){e.used=!1})},this._objectListGet=function(t,e){for(var i=0;i<t.length;i+=1)if(t[i].entry===e)return t[i].used=!0,t[i].value},this._objectListAdd=function(t,e,i){t.push({entry:e,value:i,used:!0})},this._objectListEnd=function(t){for(var e=t.length-1;e>=0;e-=1)t[e].used||t.splice(e,1)},this.pointSearch=function(t){var i,o,a=[],s=[],c={},h=[{},{},{},{}],d=[{},{},{},{}],f=[0,1,2,0],p=[1,2,3,1],m=l.data(),g=l.layer().map();return t=e.transformCoordinates(g.ingcs(),g.gcs(),t),u||this._generateQuads(),n.each([u.clrQuads,u.imgQuads],function(e,n){n.forEach(function(e,n){for(i=0;i<f.length;i+=1)h[i].x=e.pos[3*f[i]],h[i].y=e.pos[3*f[i]+1],h[i].z=e.pos[3*f[i]+2],d[i].x=e.pos[3*p[i]],d[i].y=e.pos[3*p[i]+1],d[i].z=e.pos[3*p[i]+2];(r.pointInPolygon(t,h)||r.pointInPolygon(t,d))&&(s.push(e.idx),a.push(m[e.idx]),o=r.pointTo2DTriangleBasis(t,h[0],h[1],h[2]),!o||o.x+o.y>1?(o=r.pointTo2DTriangleBasis(t,d[2],d[1],d[0]),o&&(o.x=1-o.x)):o.y=1-o.y,o&&(c[e.idx]={basis:o}))})}),{index:s,found:a,extra:c}},this.position=function(t){return void 0===t?l.style("position"):(l.style("position",r.ensureFunction(t)),l.dataTime().modified(),l.modified(),l)},this._positionToQuad=function(t,i,r,o){var a=t.call(l,r,o);if(a.ll&&a.ur||a.ul&&a.lr){var s=l.gcs(),u=l.layer().map().gcs(),c={};return n.each(["ll","lr","ul","ur"],function(t,n){void 0!==a[n]&&(c[n]={},void 0===a[n].x?c[n]=[a[n][0],a[n][1],a[n][2]]:c[n]=[a[n].x,a[n].y,a[n].z],void 0===c[n][2]&&(c[n][2]=i.call(l,r,o)),s!==u&&s!==!1&&(c[n]=e.transformCoordinates(s,u,c[n])))}),c.ll=c.ll||[c.ul[0],c.lr[1],(c.ul[2]+c.lr[2])/2],c.lr=c.lr||[c.ur[0],c.ll[1],(c.ur[2]+c.ll[2])/2],c.ur=c.ur||[c.lr[0],c.ul[1],(c.lr[2]+c.ul[2])/2],c.ul=c.ul||[c.ll[0],c.ur[1],(c.ll[2]+c.ur[2])/2],c}},this._generateQuads=function(){var t,e,i=l.position(),o=r.ensureFunction(l.style("image")),a=r.ensureFunction(l.style("color")),c=r.ensureFunction(l.style("depth")),f=r.ensureFunction(l.style("opacity")),p=r.ensureFunction(l.style("drawOnAsyncResourceLoaded")),m=r.ensureFunction(l.style("previewColor")),g=r.ensureFunction(l.style("previewImage")),v=l.data(),y=[],x=[],_=[0,0,0];return l._objectListStart(d),n.each(v,function(u,v){if(v._cachedQuad)return e=v._cachedQuad.diag2,(void 0===t||v._cachedQuad.diag2&&v._cachedQuad.diag2<t)&&(_=v._cachedQuad.ll,t=v._cachedQuad.diag2),v._cachedQuad.clrquad&&y.push(v._cachedQuad.clrquad),void(v._cachedQuad.imgquad&&x.push(v._cachedQuad.imgquad));var 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0===e?I:e,t=n.extend(!0,{},t),t.center=A.normalizeCoordinates(t.center),e!==F&&(t.center=T.transformCoordinates(e,F,t.center))),t=n.extend(!0,{},d,t),V={start:{center:R.center(void 0,null),zoom:R.zoom(),rotation:R.rotation()},end:{center:t.center,zoom:f(t.zoom),rotation:p(t.rotation,void 0,!0)},ease:t.ease,zCoord:t.zCoord,done:t.done,duration:t.duration,zoomOrigin:t.zoomOrigin},V.interp=t.interp([V.start.center.x,V.start.center.y,t.zCoord?s(V.start.zoom):V.start.zoom,V.start.rotation],[V.end.center?V.end.center.x:V.start.center.x,V.end.center?V.end.center.y:V.start.center.y,t.zCoord?s(V.end.zoom):V.end.zoom,V.end.rotation]),R.geoTrigger(C.transitionstart,t),C.cancelNavigation?(V=null,R.geoTrigger(C.transitionend,t),R):(C.cancelAnimation?(t.duration=0,l(0)):i?l(i):R.scheduleAnimationFrame(l),R)},this.transitionCancel=function(t){return!(!V||V.cancel===!0&&!q)&&(V.cancel=!0,V.cancelSource=t||V.cancelSource||"",q=null,!0)},this.bounds=function(t,e){var i;if(e=null===e?F:void 0===e?I:e,void 0!==t){if(e!==F){var n=T.transformCoordinates(e,F,[{x:t.left,y:t.top},{x:t.right,y:t.bottom}]);t={left:n[0].x,top:n[0].y,right:n[1].x,bottom:n[1].y}}t=m(t,B),i=R.zoomAndCenterFromBounds(t,B,null),R.zoom(i.zoom),R.center(i.center,null)}return R.boundsFromZoomAndCenter(G,N,B,e,!0)},this.maxBounds=function(t,e){if(e=null===e?F:void 0===e?I:e,void 0===t)return{left:T.transformCoordinates(F,e,{x:X.left,y:0}).x,right:T.transformCoordinates(F,e,{x:X.right,y:0}).x,bottom:T.transformCoordinates(F,e,{x:0,y:X.bottom}).y,top:T.transformCoordinates(F,e,{x:0,y:X.top}).y};var i=((t.left||0)+(t.right||0))/2,n=((t.bottom||0)+(t.top||0))/2;return void 0!==t.left&&(X.left=T.transformCoordinates(e,F,{x:t.left,y:n}).x),void 0!==t.right&&(X.right=T.transformCoordinates(e,F,{x:t.right,y:n}).x),void 0!==t.bottom&&(X.bottom=T.transformCoordinates(e,F,{x:i,y:t.bottom}).y),void 0!==t.top&&(X.top=T.transformCoordinates(e,F,{x:i,y:t.top}).y),d(),R.zoom(G),R.pan({x:0,y:0}),this},this.zoomAndCenterFromBounds=function(t,e,i){var n,r;if(i=null===i?F:void 0===i?I:i,i!==F){var o=T.transformCoordinates(i,F,[{x:t.left,y:t.top},{x:t.right,y:t.bottom}]);t={left:o[0].x,top:o[0].y,right:o[1].x,bottom:o[1].y}}if(t.left>=t.right||t.bottom>=t.top)throw new Error("Invalid bounds provided");return r=f(h(t,e)),t=m(t,e),n={x:(t.left+t.right)/2-w.x,y:(t.top+t.bottom)/2-w.y},i!==F&&(n=T.transformCoordinates(F,i,n)),{zoom:r,center:n}},this.boundsFromZoomAndCenter=function(t,e,i,n,r,o){var a,s,u,l,h,d;if(n=null===n?F:void 0===n?I:n,t=f(t,r),d=R.unitsPerPixel(t),e=R.gcsToWorld(e,null),a=D*d,s=O*d,u=a/2,l=s/2,i?(e.x+=w.x,e.y+=w.y,h=c(e,{width:a,height:s},i),h.width=a,h.height=s,h=m(h,i,void 0,o)):(h={left:e.x-u+w.x,right:e.x+u+w.x,bottom:e.y-l+w.y,top:e.y+l+w.y},h=m(h,0,void 0,o)),n!==F){var p=T.transformCoordinates(F,n,[[h.left,h.top],[h.right,h.bottom]]);h={left:p[0][0],top:p[0][1],right:p[1][0],bottom:p[1][1]}}return h.width=a,h.height=s,h},this.discreteZoom=function(t){return void 0===t?W:(t=!!t,W!==t&&(W=t,W&&R.zoom(Math.round(R.zoom())),R.interactor().options({discreteZoom:W})),R)},this.layers=this.children,this.updateAttribution=function(){R.node().find(".geo-attribution").remove();var t=n("<div/>").addClass("geo-attribution").on("mousedown",function(t){t.stopPropagation()});return R.children().forEach(function(e){var i=e.attribution();i&&n("<span/>").addClass("geo-attribution-layer").html(i).appendTo(t)}),n("span",t).length&&t.appendTo(R.node()),R},this.screenshot=function(t,i,r,o){var a;if(!t||Array.isArray(t)||t.renderer||(i=i||t.type,r=r||t.encoderOptions,o=o||t,t=t.layers),o=o||{},o.wait){var s=n.extend({},o,{wait:!1});a=n.Deferred();var u=function(){window.requestAnimationFrame(function(){a.resolve()})};return"idle"===o.wait?R.onIdle(u):u(),a.then(function(){return R.screenshot(t,i,r,s)})}a=n.when(),t?Array.isArray(t)||(t=[t]):(t=R.layers(),null!==o.attribution&&void 0!==o.attribution||(o.attribution=!0)),t=t.filter(function(t){return R.layers().indexOf(t)>=0}),t=t.sort(function(t,e){return t.zIndex()-e.zIndex()});var l=document.createElement("canvas");l.width=D,l.height=O;var c=l.getContext("2d");if(o.background!==!1&&null!==o.background){var h=o.background;void 0===o.background&&(c.fillStyle="white",c.fillRect(0,0,l.width,l.height),R.node().parents().get().reverse().forEach(function(t){h=window.getComputedStyle(t).backgroundColor,h&&"transparent"!==h&&(c.fillStyle=h,c.fillRect(0,0,l.width,l.height))}),h=window.getComputedStyle(R.node()[0]).backgroundColor),h&&"transparent"!==h&&(c.fillStyle=h,c.fillRect(0,0,l.width,l.height))}return t.forEach(function(t){var i=t.opacity();i<=0||(t.node().children("canvas").each(function(){var r=n(this);a=a.then(function(){"vgl"===t.renderer().api()&&t.renderer()._renderFrame(),e(c,i,r,r[0])})}),t.node().children().not("canvas").length&&(a=a.then(function(){return A.htmlToImage(t.node(),1).done(function(t){e(c,1,n([]),t)})})))}),o.attribution&&R.node().find(".geo-attribution").each(function(){var t=n(this);a=a.then(function(){return A.htmlToImage(t,1).done(function(t){e(c,1,n([]),t)})})}),a=a.then(function(){var t=l;return"canvas"!==i&&(l=l.toDataURL(i,r)),R.geoTrigger(C.screenshot.ready,{canvas:t,screenshot:l}),l})},this.scheduleAnimationFrame=function(t,e){Q.length||Q.push(window.requestAnimationFrame(o));var i=Q.indexOf(t,1);if(i>=0){if(!e)return;if(Q.splice(i,1),"remove"===e)return}return Q.push(t),Q[0]},this._init(t),this.node().on("dragover.geo",function(t){var e=t.originalEvent;R.fileReader()&&(e.stopPropagation(),e.preventDefault(),e.dataTransfer.dropEffect="copy")}).on("drop.geo",function(t){function e(){R.draw()}var i,n,r=t.originalEvent,o=R.fileReader();if(o)for(r.stopPropagation(),r.preventDefault(),i=0;i<r.dataTransfer.files.length;i+=1)n=r.dataTransfer.files[i],o.canRead(n)&&o.read(n,e)}),w={x:0,y:0},this.zoomRange(t,!0),G=f(G),B=p(B),this.center(n.extend({},t.center||N),void 0),null!==t.interactor&&this.interactor(t.interactor||S({discreteZoom:W})),Z&&n(window).on("resize",v),R.geoOn([C.layerAdd,C.layerRemove],R.updateAttribution),this};s.create=function(t){"use strict";var e=s(t),n=i(210);return e&&e.zoom?(t.data=t.data||[],t.layers=t.layers||[],t.layers.forEach(function(i){i.data=i.data||t.data,i.layer=n.create(e,i)}),e):(console.warn("Could not create map."),null)},o(s,a),t.exports=s},function(t,e,i){var n=i(8),r=i(201).registerLayer,o=i(210),a=function(t){"use strict";var e=i(201).createWidget;if(t.renderer="dom",t.sticky=!1,!(this instanceof a))return new a(t);o.call(this,t);var n=this,r=this._exit;this.createWidget=function(t,i){var r=e(t,n,i);return i&&"parent"in i||n.addChild(r),r._init(i),n.modified(),r},this.deleteWidget=function(t){return t._exit(),n.removeChild(t),n.modified(),n},this._exit=function(){n.children().forEach(function(t){n.deleteWidget(t)}),r()}};n(a,o),r("ui",a),t.exports=a},function(t,e,i){t.exports=function(){"use strict";var t=i(1),e=i(8),n=i(239),r=i(201),o=i(223),a=function(t){var e=i(233);return this instanceof a?(void 0!==t.mapOpacity&&void 0===t.opacity&&(t.opacity=t.mapOpacity),n.call(this,t),this.mapOpacity=this.opacity,void(this._getTile=function(t,i){var n=i||t;return e({index:t,size:{x:this._options.tileWidth,y:this._options.tileHeight},queue:this._queue,overlap:this._options.tileOverlap,scale:this._options.tileScale,url:this._options.url.call(this,n.x,n.y,n.level||0,this._options.subdomains),crossDomain:this._options.crossDomain})}.bind(this))):new a(t)};return a.defaults=t.extend({},n.defaults,{minLevel:0,maxLevel:18,tileOverlap:0,tileWidth:256,tileHeight:256,tileOffset:function(t){var e=256*Math.pow(2,t-1);return{x:e,y:e}},wrapX:!0,wrapY:!1,url:"http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",attribution:'Tile data &copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'}),e(a,n),r.registerLayer("osm",a,[o.capabilities.image]),a}()},function(t,e,i){t.exports=function(){"use strict";function t(t,e){return(t%e+e)%e}function e(e,i,n,r){return r[t(e+i+n,r.length)]}function n(t){var i,n=new RegExp(/\$?\{[xX]\}/),r=new RegExp(/\$?\{[yY]\}/),o=new RegExp(/\$?\{[zZ]\}/),a=new RegExp(/\$?\{(s|S|[sS]:[^{}]+|[^-{}]-[^-{}]|([^,{}]+,)+[^,{}]+)\}/),s=t.replace(a,"{s}").replace(n,"{x}").replace(r,"{y}").replace(o,"{z}"),u=t.match(a);if(u)if(u[2])i=u[1].split(",");else if(":"===u[1][1])i=u[1].substr(2).split("");else if("-"===u[1][1]){i=[];for(var l=u[1].charCodeAt(0),c=u[1].charCodeAt(2),h=Math.min(l,c);h<=Math.max(l,c);h+=1)i.push(String.fromCharCode(h))}return function(t,n,r,o){return s.replace("{s}",e(t,n,r,i||o)).replace("{x}",t).replace("{y}",n).replace("{z}",r)}}var r=i(8),o=i(220),a=function(e){if(!(this instanceof a))return new a(e);o.call(this,e);var r=i(1),s=i(9),u=i(11),l=i(240),c=i(229),h=i(201).adjustLayerForRenderer,d=i(234);if(e=r.extend(!0,{},this.constructor.defaults,e||{}),e.cacheSize||(e.cacheSize=e.keepLower?600:200),"string"===r.type(e.subdomains)&&(e.subdomains=e.subdomains.split("")),e.baseUrl){var f=e.baseUrl;f&&"/"!==f.charAt(f.length-1)&&(f+="/"),e.url=f+"{z}/{x}/{y}."+(e.imageFormat||"png")}e.originalUrl=e.url,"string"===r.type(e.url)&&(e.url=n(e.url));var p,m=this._init,g=this._exit,v=this.visible,y=[],x=[];this._options=r.extend(!0,{},e),this.attribution(e.attribution),this._activeTiles={},this._tileTree={},this._cache=l({size:e.cacheSize}),this._queue=c({size:6,track:e.cacheSize,needed:function(t){return t===this.cache.get(t.toString(),!0)}.bind(this)});var _={};return Object.defineProperty(this,"options",{get:function(){return r.extend({},this._options)}}),Object.defineProperty(this,"cache",{get:function(){return this._cache}}),Object.defineProperty(this,"activeTiles",{get:function(){return r.extend({},this._activeTiles)}}),this.tilesAtZoom=function(t){if(this._options.tilesAtZoom)return this._options.tilesAtZoom.call(this,t);var e=Math.pow(2,t);return{x:e,y:e}},this.tilesMaxBounds=function(t){return this._options.tilesMaxBounds?this._options.tilesMaxBounds.call(this,t):null},this.tileCropFromBounds=function(t){if(this._options.tilesMaxBounds){var e=t.index.level,i=this._tileBounds(t);return void 0===x[e]&&(x[e]=this.tilesMaxBounds(e)||null),x[e]&&(i.right>x[e].x||i.bottom>x[e].y)?{x:Math.max(0,Math.min(x[e].x,i.right)-i.left),y:Math.max(0,Math.min(x[e].y,i.bottom)-i.top)}:void 0}},this.isValid=function(t){return this._options.minLevel<=t.level&&t.level<=this._options.maxLevel&&(!!(this._options.wrapX||0<=t.x&&t.x<=this.tilesAtZoom(t.level).x-1)&&!!(this._options.wrapY||0<=t.y&&t.y<=this.tilesAtZoom(t.level).y-1))},this._origin=function(t){var e,i,n=this.toLevel(this.toLocal(this.map().origin()),t),r=this._options;return e={x:Math.floor(n.x/r.tileWidth),y:Math.floor(n.y/r.tileHeight)},i={x:n.x-r.tileWidth*e.x,y:n.y-r.tileHeight*e.y},{index:e,offset:i}},this._tileBounds=function(t){var e=this._origin(t.index.level);return t.bounds(e.index,e.offset)},this.tileAtPoint=function(t,e){var i=this._origin(e),n=this.map();t=this.displayToLevel(n.gcsToDisplay(t,null),e),isNaN(t.x)&&(t.x=0),isNaN(t.y)&&(t.y=0);var r=this._tileOffset(e);r&&(t.x+=r.x,t.y+=r.y);var o={x:Math.floor(i.index.x+(i.offset.x+t.x)/this._options.tileWidth),y:Math.floor(i.index.y+(i.offset.y+t.y)/this._options.tileHeight)};return o},this.gcsTileBounds=function(t,e){var i=t.index?t:d({index:t,size:{x:this._options.tileWidth,y:this._options.tileHeight},url:""}),n=this._tileOffset(i.index.level),r=i.bounds({x:0,y:0},n),o=this.map(),a=o.unitsPerPixel(i.index.level),s=[{x:r.left*a,y:this._topDown()*r.top*a},{x:r.right*a,y:this._topDown()*r.bottom*a}];return e=null===e?o.gcs():void 0===e?o.ingcs():e,e!==o.gcs()&&(s=u.transformCoordinates(o.gcs(),e,s)),{left:s[0].x,top:s[0].y,right:s[1].x,bottom:s[1].y}},this._getTile=function(t,e){var i=e||t;return d({index:t,size:{x:this._options.tileWidth,y:this._options.tileHeight},queue:this._queue,url:this._options.url.call(this,i.x,i.y,i.level||0,this._options.subdomains)})},this._getTileCached=function(t,e,i){var n=this.cache.get(this._tileHash(t));return null===n&&(n=this._getTile(t,e),this.cache.add(n,this.remove.bind(this),i)),n},this._tileHash=function(t){return[t.level||0,t.y,t.x].join("_")},this._getTileRange=function(t,e){var i=[this.tileAtPoint({x:e.left,y:e.top},t),this.tileAtPoint({x:e.right,y:e.top},t),this.tileAtPoint({x:e.left,y:e.bottom},t),this.tileAtPoint({x:e.right,y:e.bottom},t)];return{start:{x:Math.min(i[0].x,i[1].x,i[2].x,i[3].x),y:Math.min(i[0].y,i[1].y,i[2].y,i[3].y)},end:{x:Math.max(i[0].x,i[1].x,i[2].x,i[3].x),y:Math.max(i[0].y,i[1].y,i[2].y,i[3].y)}}},this._getTiles=function(e,i,n,o){var a,s,u,l,c,h,d,f,p,m,g,v=[],x=!1,_=this._options.keepLower?this._options.minLevel:e;for(e<_&&(e=_),g=_;g<=e&&(d=this._getTileRange(g,i),c=d.start,h=d.end,l=this.tilesAtZoom(g),this._options.wrapX||(c.x=Math.min(Math.max(c.x,0),l.x-1),h.x=Math.min(Math.max(h.x,0),l.x-1),g===_&&this._options.keepLower&&(c.x=0,h.x=l.x-1)),this._options.wrapY||(c.y=Math.min(Math.max(c.y,0),l.y-1),h.y=Math.min(Math.max(h.y,0),l.y-1),g===_&&this._options.keepLower&&(c.y=0,h.y=l.y-1)),!(this._options.gcs&&this._options.gcs!==this.map().gcs()&&g!==_&&(h.x+1-c.x)*(h.y+1-c.y)>this.map().size().width*this.map().size().height/this._options.tileWidth/this._options.tileHeight*16));g+=1)for(a=c.x;a<=h.x;a+=1)for(s=c.y;s<=h.y;s+=1)u={level:g,x:a,y:s},f={level:g,x:a,y:s},this._options.wrapX&&(f.x=t(f.x,l.x)),this._options.wrapY&&(f.y=t(f.y,l.y)),this.isValid(f)&&(o&&v.length<y.length&&(m=y[v.length],x=x||u.level!==m.level||u.x!==m.x||u.y!==m.y),v.push({index:u,source:f}));if(o){if(!x&&v.length===y.length)return;y.splice(0,y.length),r.each(v,function(t,e){y.push(e.index)})}if(n){p={x:(c.x+h.x)/2,y:(c.y+h.y)/2,level:e,bottomLevel:e};for(var b=Math.max(h.x-c.x,h.y-c.y)+1;b>=1;b/=2)p.bottomLevel-=1;v.sort(this._loadMetric(p)),this._queue&&this._queue.batch(!0)}for(this.cache.size<v.length&&(console.log("Increasing cache size to "+v.length),this.cache.size=v.length),a=0;a<v.length;a+=1)v[a]=this._getTileCached(v[a].index,v[a].source,!0);return this.cache.purge(this.remove.bind(this)),v},this.prefetch=function(t,e){var i;return i=this._getTiles(t,e,!0),r.when.apply(r,i.map(function(t){return t.fetch()}))},this._loadMetric=function(t){return function(e,i){var n,r,o,a,s,u,l;return e=e.index||e,i=i.index||i,e.level!==i.level?t.bottomLevel&&e.level>=t.bottomLevel!=i.level>=t.bottomLevel?e.level>=t.bottomLevel?-1:1:e.level-i.level:(l=Math.pow(2,e.level-t.level),s=(t.x+.5)*l-.5,u=(t.y+.5)*l-.5,o=e.x-s,a=e.y-u,n=o*o+a*a,o=i.x-s,a=i.y-u,r=o*o+a*a,n-r)}},this.fromLevel=function(t,e){var i=Math.pow(2,-e);return{x:t.x*i,y:t.y*i}},this.toLevel=function(t,e){var i=Math.pow(2,e);return{x:t.x*i,y:t.y*i}},this.drawTile=function(t){var e=t.toString();this._activeTiles.hasOwnProperty(e)?this._moveToTop(t):this._drawTile(t),this._activeTiles[e]=t},this._drawTile=function(t){if(null!==this.renderer())throw new Error("This draw method is not valid on renderer managed layers.");var e,i=t.index.level,n=r(this._getSubLayer(i)),o=this._tileBounds(t),a=this._options.animationDuration,s=r('<div class="geo-tile-container"/>').attr("tile-reference",t.toString());s.append(t.image),s.css({left:o.left-parseInt(n.attr("offsetx")||0,10)+"px",top:o.top-parseInt(n.attr("offsety")||0,10)+"px"}),e=this.tileCropFromBounds(t),e&&s.addClass("crop").css({width:e.x+"px",height:e.y+"px"}),a>0&&t.fadeIn(a),n.append(s),t.catch(function(){console.warn("Could not load tile at "+t.toString()),this._remove(t)}.bind(this))},this.remove=function(t){var e=t.toString(),i=this._activeTiles[e];return i instanceof d&&this._remove(i),delete this._activeTiles[e],i},this._remove=function(t){t.image&&(t.image.parentElement?r(t.image.parentElement).remove():console.log("No parent element to remove "+t.toString(),t),r(t.image).remove())},this._moveToTop=function(t){r.noop(t)},this._getViewBounds=function(){var t=this.map(),e=t.zoom(),i=this._options.tileRounding(e),n=Math.pow(2,e-i),r=t.size(),o=this.displayToLevel({x:0,y:0}),a=this.displayToLevel({x:r.width,y:0}),s=this.displayToLevel({x:0,y:r.height}),u=this.displayToLevel({x:r.width,y:r.height});return{level:i,scale:n,left:Math.min(o.x,a.x,s.x,u.x),right:Math.max(o.x,a.x,s.x,u.x),top:Math.min(o.y,a.y,s.y,u.y),bottom:Math.max(o.y,a.y,s.y,u.y)}},this._purge=function(t,e,i){var n,r;if(!this._updating){i||(i=this._getViewBounds());for(r in this._activeTiles)n=this._activeTiles[r],this._canPurge(n,i,t,e)&&this.remove(n);return this}},this.clear=function(){var t,e=[];for(t in this._activeTiles)e.push(this.remove(t));return this._tileTree={},y=[],e},this.reset=function(){this.clear(),this._cache.clear()},this.toLocal=function(t,e){var i=this.map(),n=i.unitsPerPixel(void 0===e?i.zoom():e);return{x:t.x/n,y:this._topDown()*t.y/n}},this.fromLocal=function(t,e){var i=this.map(),n=i.unitsPerPixel(void 0===e?i.zoom():e);return{x:t.x*n,y:this._topDown()*t.y*n}},this._topDown=function(){return this._options.topDown?1:-1},this._getSubLayer=function(t){if(this.canvas()){var e=this.canvas().find("div[data-tile-layer="+t.toFixed()+"]").get(0);return e||(e=r('<div class=geo-tile-layer data-tile-layer="'+t.toFixed()+'"/>').get(0),this.canvas().append(e)),e}},this._updateSubLayers=function(t,e){var i=this.canvas(),n=parseInt(i.attr("lastlevel"),10),o=parseInt(i.attr("lastoffsetx")||0,10),a=parseInt(i.attr("lastoffsety")||0,10);if(n===t&&Math.abs(o-e.left)<65536&&Math.abs(a-e.top)<65536)return{x:o,y:a};var s=this.map(),u=this._tileOffset(t),l=parseInt((e.left+e.right-s.size().width)/2+u.x,10),c=parseInt((e.top+e.bottom-s.size().height)/2+u.y,10);return i.find(".geo-tile-layer").each(function(e,i){var n=r(i),o=parseInt(n.data("tileLayer"),10);n.css("transform","scale("+Math.pow(2,t-o)+")");var a=parseInt(l/Math.pow(2,t-o),10),s=parseInt(c/Math.pow(2,t-o),10),u=a-parseInt(n.attr("offsetx")||0,10),h=s-parseInt(n.attr("offsety")||0,10);n.attr({offsetx:a,offsety:s}),n.find(".geo-tile-container").each(function(t,e){r(e).css({left:parseInt(r(e).css("left"),10)-u+"px",top:parseInt(r(e).css("top"),10)-h+"px"})})}),i.attr({lastoffsetx:l,lastoffsety:c,lastlevel:t}),{x:l,y:c}},this._update=function(t){if((!t||!t.event||t.event.event!==s.zoom&&t.event.event!==s.rotate)&&this.visible()){var e,i=this.map(),n=i.bounds(void 0,null),o=i.zoom(),a=this._options.tileRounding(o);if(this._updateSubLayers){var u=this._getViewBounds(),l=this._updateSubLayers(a,u)||{x:0,y:0},c=this._tileOffset(a);if(null===this.renderer()){var h=Math.pow(2,o-a),d=i.rotation(),f=-c.x+-(u.left+u.right)/2+l.x,m=-c.y+-(u.bottom+u.top)/2+l.y,g=f+i.size().width/2,v=m+i.size().height/2;this.canvas().css({
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e=t.index;this._tileTree[e.level]=this._tileTree[e.level]||{},this._tileTree[e.level][e.x]=this._tileTree[e.level][e.x]||{},this._tileTree[e.level][e.x][e.y]=t}},this._getTileTree=function(t){return((this._tileTree[t.level]||{})[t.x]||{})[t.y]||null},this._isCovered=function(t){var e=t.index.level,i=t.index.x,n=t.index.y,r=[];return(r=this._getTileTree({level:e-1,x:Math.floor(i/2),y:Math.floor(n/2)}))?[r]:(r=[this._getTileTree({level:e+1,x:2*i,y:2*n}),this._getTileTree({level:e+1,x:2*i+1,y:2*n}),this._getTileTree({level:e+1,x:2*i,y:2*n+1}),this._getTileTree({level:e+1,x:2*i+1,y:2*n+1})],r.every(function(t){return null!==t})?r:null)},this._outOfBounds=function(t,e){var i=this._tileOffset(t.index.level),n=1;return t.index.level!==e.level&&(n=Math.pow(2,(e.level||0)-(t.index.level||0))),(t.bottom-i.y)*n<e.top||(t.left-i.x)*n>e.right||(t.top-i.y)*n>e.bottom||(t.right-i.x)*n<e.left},this._canPurge=function(t,e,i,n){if(this._options.keepLower){if(i=i||0,i<t.index.level&&t.index.level!==this._options.minLevel)return!0;if(t.index.level===this._options.minLevel&&!this._options.wrapX&&!this._options.wrapY)return!1}else if((n||this._isCovered(t))&&i!==t.index.level)return!0;return!!e&&this._outOfBounds(t,e)},this.displayToLevel=function(t,e){var i=this.map(),n=i.zoom(),r=this._options.tileRounding(n),o=i.unitsPerPixel(void 0===e?r:e);if(void 0===t){var a=i.size();t={x:a.width/2,y:a.height/2}}var s=i.displayToGcs(t,this._options.gcs||null),u={x:s.x/o,y:this._topDown()*s.y/o};return u},this.url=function(t){return void 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a.defaults={minLevel:0,maxLevel:18,tileOverlap:0,tileWidth:256,tileHeight:256,wrapX:!0,wrapY:!1,url:null,subdomains:"abc",tileOffset:function(t){return{x:0,y:0}},tilesMaxBounds:null,topDown:!1,keepLower:!0,tileRounding:Math.round,attribution:"",animationDuration:0},r(a,o),a}()},function(t,e){t.exports=function(){"use strict";var t=function(e){return this instanceof t?(e=e||{},this._size=e.size||64,Object.defineProperty(this,"size",{get:function(){return this._size},set:function(t){for(;this._atime.length>t;)this.remove(this._atime[this._atime.length-1]);this._size=t}}),Object.defineProperty(this,"length",{get:function(){return this._atime.length}}),this._access=function(t){return this._atime.indexOf(t)},this.remove=function(t){var e="string"==typeof t?t:t.toString();return e in this._cache&&(this._atime.splice(this._access(e),1),delete this._cache[e],!0)},this.clear=function(){return this._cache={},this._atime=[],this},this.get=function(t,e){return t="string"==typeof t?t:t.toString(),t 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n=i(1),r=i(8),o=i(207),a=i(9),s=i(83),u=function(t){"use strict";if(!(this instanceof u))return new u(t);t=t||{},o.call(this,t);var e,i,r,l=this,c=this._update,h=this._init,d=this._exit;return this.position=function(t){return void 0===t?l.style("position"):(t!==l.style("position")&&(l.style("position",t),l.dataTime().modified(),l.modified()),l)},this.url=function(t){return void 0===t?l.style("url"):(t!==l.style("url")&&(i=r=void 0,l.style("url",t),l.dataTime().modified(),l.modified()),l)},this.maxIndex=function(){if(r){if(void 0===r.maxIndex){r.maxIndex=0;for(var t in r.mappedColors)r.mappedColors.hasOwnProperty(t)&&(r.maxIndex=Math.max(r.maxIndex,t))}return r.maxIndex}},this.color=function(t){return void 0===t?l.style("color"):(t!==l.style("color")&&(l.style("color",t),l.dataTime().modified(),l.modified()),l)},this.pointSearch=function(t){if(e&&r){var i=e.pointSearch(t);if(1===i.index.length&&i.extra&&i.extra[i.index[0]].basis){var 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{","        step = steps - 0.5;","      }","    } else {","      step = valueVar;","    }","    clr = texture2D(sampler2d, vec2(step / steps, 0.0));","  }","  gl_FragColor = vec4(clr.rgb, clr.a * opacityVar);","}"].join("\n"),e=new s.shader(s.GL.FRAGMENT_SHADER);return e.setShaderSource(t),e}function r(){var t,e,i,n,r,o,a,s,c=h.createContours(),d=c.elements.length,f=[],p=m.geometryData();for(y.set([c.minColor.r,c.minColor.g,c.minColor.b,c.minColor.a]),x.set([c.maxColor.r,c.maxColor.g,c.maxColor.b,c.maxColor.a]),_.set(c.colorMap.length),b.set(c.stepped),t=0;t<c.colorMap.length;t+=1)f.push(255*c.colorMap[t].r),f.push(255*c.colorMap[t].g),f.push(255*c.colorMap[t].b),f.push(255*c.colorMap[t].a);for(v.setColorTable(f),c.pos=u.transformCoordinates(h.gcs(),h.layer().map().gcs(),c.pos,3),
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r._update({mayDelay:!0}),r.renderer()._render(),o(),r},this};t.exports=n},function(t,e,i){var n=i(8),r=i(201).registerFeature,o=i(206),a=100,s={corner:0,near:1,far:3},u={butt:0,square:1,round:2},l={passthrough:3,miter:4,bevel:5,round:6,"miter-clip":7},c=2,h=5,d=8,f={normal:0,debug:1},p=function(t){"use strict";function e(){var t=["#ifdef GL_ES","  precision highp float;","#endif","attribute vec3 pos;","attribute vec3 prev;","attribute vec3 next;","attribute vec3 far;","attribute float flags;","attribute vec3 strokeColor;","attribute float strokeOpacity;","attribute float strokeWidth;","uniform mat4 modelViewMatrix;","uniform mat4 projectionMatrix;","uniform float pixelWidth;","uniform float aspect;","uniform float miterLimit;","uniform float antialiasing;","varying vec4 strokeColorVar;","varying vec4 subpos;","varying vec4 info;","varying vec4 angles;","const float PI = 3.14159265358979323846264;","vec4 viewCoord(vec3 c) {","  vec4 result = projectionMatrix * modelViewMatrix * vec4(c.xyz, 1);","  if (result.w != 0.0)  result = result / result.w;","  return result;","}","void main(void)","{","  if (strokeOpacity < 0.0) {","    gl_Position = vec4(2, 2, 0, 1);","    return;","  }","  vec4 A = viewCoord(prev);","  vec4 B = viewCoord(pos);","  vec4 C = viewCoord(next);","  vec4 D = viewCoord(far);","  vec2 deltaCB = C.xy - B.xy;","  if (deltaCB == vec2(0.0, 0.0)) {","    gl_Position = vec4(2, 2, 0, 1);","    return;","  }","  float angleCB = atan(deltaCB.y / aspect, deltaCB.x);","  strokeColorVar = vec4(strokeColor, strokeOpacity);","  int vertex = int(mod(flags, 4.0));","  int nearMode = int(mod(floor(flags / 4.0), 8.0));","  int farMode = int(mod(floor(flags / 32.0), 8.0));","  float offset = mod(floor(flags / 256.0), 2048.0) / 1023.0;","  if (offset > 1.0)  offset -= 2048.0 / 1023.0;","  float yOffset = strokeWidth + antialiasing;","  if (vertex == 0 || vertex == 2)  yOffset *= -1.0;","  yOffset += strokeWidth * offset;","  float xOffset = 0.0;","  if (nearMode == 0) {","    xOffset = antialiasing;","  } else if (nearMode == 1 || nearMode == 2) {","    xOffset = strokeWidth + antialiasing;","  }","  float cosABC, sinABC, cosBCD, sinBCD;","  if (nearMode >= 4) {","    float angleBA = atan((B.y - A.y) / aspect, B.x - A.x);","    if (A.xy == B.xy)  angleBA = angleCB;","    float angleABC = angleCB - angleBA;","    angleABC = (mod(angleABC + PI, 2.0 * PI) - PI) / 2.0;","    cosABC = cos(angleABC);  sinABC = sin(angleABC);","    if (nearMode >= 4 && cosABC > 0.999999) {","      nearMode = 3;","    }","    if (nearMode == 4 || nearMode == 7) {","      if (cosABC == 0.0 || 1.0 / cosABC > miterLimit) {","        if (nearMode == 4) {","          nearMode = 5;","        } else {","          xOffset = miterLimit * strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing;","        }","      } else {","        xOffset = abs(sinABC / cosABC) * strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing + 1.0;","        nearMode = 4;","      }","    }","    if (nearMode == 5 || nearMode == 6) {","      xOffset = strokeWidth * (1.0 - offset * sign(sinABC)) + antialiasing;","    }","  }","  if (farMode >= 4) {","    float angleDC = atan((D.y - C.y) / aspect, D.x - C.x);","    if (D.xy == C.xy)  angleDC = angleCB;","    float angleBCD = angleDC - angleCB;","    angleBCD = (mod(angleBCD + PI, 2.0 * PI) - PI) / 2.0;","    cosBCD = cos(angleBCD);  sinBCD = sin(angleBCD);","    if (farMode >= 4 && cosBCD > 0.999999) {","      farMode = 3;","    }","    if (farMode == 4 || farMode == 7) {","      if (cosBCD == 0.0 || 1.0 / cosBCD > miterLimit) {","        if (farMode == 4)  farMode = 5;","      } else {","        farMode = 4;","      }","    }","  }","  xOffset *= -1.0;","  gl_Position = vec4(","    B.x + (xOffset * cos(angleCB) - yOffset * sin(angleCB)) * pixelWidth,","    B.y + (xOffset * sin(angleCB) + yOffset * cos(angleCB)) * pixelWidth * aspect,","    B.z, 1);","  float lineLength = length(vec2(deltaCB.x, deltaCB.y / aspect)) / pixelWidth;","  if (vertex == 0 || vertex == 1) {","    subpos = vec4(xOffset, yOffset, lineLength - xOffset, strokeWidth);","    info = vec4(float(nearMode), float(farMode), offset, 0.0);","    angles = vec4(cosABC, sinABC, cosBCD, sinBCD);","  } else {","    subpos = vec4(lineLength - xOffset, -yOffset, xOffset, strokeWidth);","    info = vec4(float(farMode), float(nearMode), -offset, 0.0);","    angles = vec4(cosBCD, -sinBCD, cosABC, -sinABC);","  }","}"].join("\n"),e=new m.shader(m.GL.VERTEX_SHADER);return e.setShaderSource(t),e}function n(t){var e=["#ifdef GL_ES","  precision highp float;","#endif","varying vec4 strokeColorVar;","varying vec4 subpos;","varying vec4 info;","varying vec4 angles;","uniform float antialiasing;","uniform float miterLimit;","uniform float fixedFlags;","void main () {","  vec4 color = strokeColorVar;",t?"  bool debug = bool(mod(fixedFlags, 2.0));":"","  float opacity = 1.0;","  int nearMode = int(info.x);","  int farMode = int(info.y);","  float cosABC = angles.x;","  float sinABC = angles.y;","  float cosBCD = angles.z;","  float sinBCD = angles.w;","  if (nearMode >= 4) {","    float dist = cosABC * subpos.x - sinABC * subpos.y;","    opacity = min(opacity, pow(smoothstep(-0.02, 0.02, dist), 0.5));","    if (opacity == 0.0) {",t?"if (debug) {color.r=255.0/255.0;gl_FragColor=color;return;}":"","      discard;","    }","  }","  if (farMode >= 4) {","    float dist = cosBCD * subpos.z - sinBCD * subpos.y;","    opacity = min(opacity, pow(smoothstep(-0.02, 0.02, dist), 0.5));","    if (opacity == 0.0) {",t?"if (debug) {color.r=254.0/255.0;gl_FragColor=color;return;}":"","      discard;","    }","  }","  if ((nearMode == 0 || nearMode == 1) && subpos.x < antialiasing) {","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.x + subpos.w * float(nearMode)));","  }","  if ((farMode == 0 || farMode == 1) && subpos.z < antialiasing) {","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.z + subpos.w * float(farMode)));","  }","  if (nearMode == 2 && subpos.x <= 0.0) {","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.w - sqrt(pow(subpos.x, 2.0) + pow(subpos.y - info.z * subpos.w, 2.0))));","  }","  if (farMode == 2 && subpos.z <= 0.0) {","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.w - sqrt(pow(subpos.z, 2.0) + pow(subpos.y - info.z * subpos.w, 2.0))));","  }","  if ((nearMode == 5 || nearMode == 7) && subpos.x < antialiasing) {","    float dist = (sinABC * subpos.x + cosABC * subpos.y) * sign(sinABC);","    float w = subpos.w * (1.0 - info.z * sign(sinABC));","    float maxDist;","    if (nearMode == 5)  maxDist = cosABC * w;","    else                maxDist = miterLimit * w;","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, maxDist + dist));","  }","  if ((farMode == 5 || farMode == 7) && subpos.z < antialiasing) {","    float dist = (sinBCD * subpos.z + cosBCD * subpos.y) * sign(sinBCD);","    float w = subpos.w * (1.0 - info.z * sign(sinBCD));","    float maxDist;","    if (farMode == 5)  maxDist = cosBCD * w;","    else               maxDist = miterLimit * w;","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, maxDist + dist));","  }","  if (nearMode == 6 && subpos.x <= 0.0) {","    float w = subpos.w * (1.0 - info.z * sign(sinABC));","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, w - sqrt(pow(subpos.x, 2.0) + pow(subpos.y, 2.0))));","  }","  if (farMode == 6 && subpos.z <= 0.0) {","    float w = subpos.w * (1.0 - info.z * sign(sinBCD));","    opacity = min(opacity, smoothstep(-antialiasing, antialiasing, w - sqrt(pow(subpos.z, 2.0) + pow(subpos.y, 2.0))));","  }","  if (antialiasing > 0.0) {","    if (subpos.y > subpos.w * (1.0 + info.z) - antialiasing) {","      opacity = min(opacity, smoothstep(antialiasing, -antialiasing, subpos.y - subpos.w * (1.0 + info.z)));","    }","    if (subpos.y < subpos.w * (-1.0 + info.z) + antialiasing) {","      opacity = min(opacity, smoothstep(-antialiasing, antialiasing, subpos.y - subpos.w * (-1.0 + info.z)));","    }","  }","  if (opacity == 0.0) {",t?"if (debug) {color.r=253.0/255.0;gl_FragColor=color;return;}":"","    discard;","  }","  color.a *= opacity;","  gl_FragColor = color;","}"].join("\n"),i=new m.shader(m.GL.FRAGMENT_SHADER);return i.setShaderSource(e),i}function r(){var t,e,i,n,r,o,p,m,y,x,b,w,M,S,P,R,L,k,D,O,F,I,N,G,B,z,U,j,V,q,W,H=C.data(),X=0,K=[{},{}],Q=K[1],Z=[],Y=C.position(),$=C.style.get("strokeWidth"),J=C.style.get("strokeColor"),tt=C.style.get("strokeOpacity"),et=C.style.get("lineCap"),it=C.style.get("lineJoin"),nt=C.style.get("strokeOffset"),rt=C.style.get("miterLimit")(H),ot=C.style.get("antialiasing")(H)||0,at=C.featureVertices(),st=f[C.style.get("debug")(H)?"debug":"normal"]||0,ut=_.geometryData(),lt=C.style.get("closed"),ct=[];for(W=v.isFunction(C.style("closed"))?void 0:lt(),L=v.isFunction(C.style("lineCap"))?void 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this.featureVertices=function(){return[[0,"corner",-1],[0,"near",1],[1,"far",-1],[1,"corner",1],[1,"near",-1],[0,"far",1]]},this.verticesPerFeature=function(){return C.featureVertices().length},this._init=function(t){var i=m.shaderProgram(),r=e(),o=n(void 0!==((t||{}).style||{}).debug),a=m.vertexAttribute("pos"),s=m.vertexAttribute("prev"),u=m.vertexAttribute("next"),l=m.vertexAttribute("far"),c=m.vertexAttribute("flags"),h=m.vertexAttribute("strokeWidth"),d=m.vertexAttribute("strokeColor"),f=m.vertexAttribute("strokeOpacity"),p=new m.modelViewUniform("modelViewMatrix"),g=new 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l.projectionUniform("projectionMatrix"),C=l.material(),S=l.blend(),P=l.geometryData(),R=l.sourceDataP3fv({name:"pos"}),L=l.sourceDataAnyfv(2,l.vertexAttributeKeysIndexed.One,{name:"unit"}),k=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Two,{name:"radius"}),D=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Three,{name:"strokeWidth"}),O=l.sourceDataAnyfv(3,l.vertexAttributeKeysIndexed.Four,{name:"fillColor"}),F=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Five,{name:"fill"}),I=l.sourceDataAnyfv(3,l.vertexAttributeKeysIndexed.Six,{name:"strokeColor"}),N=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Seven,{name:"stroke"}),G=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Eight,{name:"fillOpacity"}),B=l.sourceDataAnyfv(1,l.vertexAttributeKeysIndexed.Nine,{name:"strokeOpacity"}),z=new l.triangles;"sprite"===_&&(z=new l.points),v=new l.floatUniform("pixelWidth",2/f.renderer().width()),y=new l.floatUniform("aspect",f.renderer().width()/f.renderer().height()),b.call(f,t),g=l.mapper({dynamicDraw:x}),i.addVertexAttribute(a,l.vertexAttributeKeys.Position),"sprite"!==_&&i.addVertexAttribute(s,l.vertexAttributeKeysIndexed.One),i.addVertexAttribute(u,l.vertexAttributeKeysIndexed.Two),i.addVertexAttribute(c,l.vertexAttributeKeysIndexed.Three),i.addVertexAttribute(h,l.vertexAttributeKeysIndexed.Four),i.addVertexAttribute(d,l.vertexAttributeKeysIndexed.Five),i.addVertexAttribute(p,l.vertexAttributeKeysIndexed.Six),i.addVertexAttribute(w,l.vertexAttributeKeysIndexed.Seven),i.addVertexAttribute(M,l.vertexAttributeKeysIndexed.Eight),i.addVertexAttribute(T,l.vertexAttributeKeysIndexed.Nine),i.addUniform(v),i.addUniform(y),i.addUniform(A),i.addUniform(E),i.addShader(o),i.addShader(n),C.addAttribute(i),C.addAttribute(S),m=l.actor(),m.setMaterial(C),m.setMapper(g),P.addSource(R),P.addSource(L),P.addSource(k),P.addSource(D),P.addSource(O),P.addSource(F),P.addSource(I),P.addSource(N),P.addSource(G),P.addSource(B),P.addPrimitive(z),g.setGeometryData(P)},this._build=function(){m&&f.renderer().contextRenderer().removeActor(m),u(),f.renderer().contextRenderer().addActor(m),f.renderer().contextRenderer().render(),f.buildTime().modified()},this._update=function(){w.call(f),(f.dataTime().getMTime()>=f.buildTime().getMTime()||f.updateTime().getMTime()<f.getMTime())&&f._build(),v.set(2/f.renderer().width()),y.set(f.renderer().width()/f.renderer().height()),m.setVisible(f.visible()),m.material().setBinNumber(f.bin()),f.updateTime().modified()},this._exit=function(){f.renderer().contextRenderer().removeActor(m),m=null,p()},f._init(),this};r(s,a),o("vgl","point",s),t.exports=s},function(t,e,i){var 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