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map_polys.js
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map_polys.js
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// ===============================================================================================
// ========================================== MAP POLYS ==========================================
// ===============================================================================================
//
// MapPolys: Retained object containing encoded map polygon(s) and management for adding/remove from
// a Google Maps instance.
//
// For more information, see: https://github.com/Safecast/Tilemap/blob/master/README-poly-json-format.md
//
var MapPolys = (function()
{
function MapPolys(mapref, fxMenuInit, fxGetLangPref, fxGetLangStrings)
{
this.encoded_polygons = new Array();
this.groups = new Array();
this.polygons = new Array();
this.mapref = mapref;
this.inforef = null;
this.zoomlistener = null;
this.draglistener = null;
this.last_z = -1;
this.fxMenuInit = fxMenuInit;
this.fxGetLangPref = fxGetLangPref;
this.fxGetLangStrings = fxGetLangStrings;
this.localized_strings =
{
lang:"",
strings: { }
};
}
MapPolys.prototype.Init = function()
{
this._GetJSONAsync("polys.json");
};
MapPolys.prototype.Add = function(poly_id)
{
var fx = function(p) { this.AttachInfoWindow(p); }.bind(this);
this.polygons = _PolysNewPolysByAddingPoly(poly_id, this.polygons, this.encoded_polygons, this.mapref, fx);
};
MapPolys.prototype.Remove = function(poly_id)
{
this.polygons = _PolysNewPolysByRemovingPoly(poly_id, this.polygons);
};
MapPolys.prototype.Exists = function(poly_id)
{
return _PolysDoesExistPoly(poly_id, this.polygons);
};
MapPolys.prototype.GetEncodedPolygons = function()
{
return this.encoded_polygons;
};
MapPolys.prototype.GetGroups = function()
{
return this.groups;
};
MapPolys.prototype.GetPolygons = function()
{
return this.polygons;
};
MapPolys.prototype.AttachInfoWindow = function(poly)
{
google.maps.event.addListener(poly, "click", function(e)
{
this._OpenRetainedInfoWindow(e, poly);
}.bind(this));
};
MapPolys.prototype._OpenRetainedInfoWindow = function(e, poly)
{
if (this.inforef == null) this.inforef = new google.maps.InfoWindow({size: new google.maps.Size(60, 40)});
else this.inforef.close();
this.inforef.setContent(this.GetInfoWindowContentForPoly(poly));
this.inforef.setPosition(e.latLng);
this.inforef.open(this.mapref, poly);
};
MapPolys.prototype._GetCurrentVisibleExtent = function()
{
var e = {};
var b = this.mapref.getBounds();
e.x0 = b.getSouthWest().lng();
e.y0 = b.getSouthWest().lat();
e.x1 = b.getNorthEast().lng();
e.y1 = b.getNorthEast().lat();
e.z = this.mapref.getZoom();
if (e.x0 > e.x1) // 180th meridian handling -- need to split into second extent
{ // but, y-coordinates stay the same, so only need two more x-coordinates.
e.ex1 = e.x1;
e.x1 = 180.0;
e.ex0 = -180.0;
}//if
else
{
e.ex0 = -9000.0;
e.ex1 = -9000.0;
}//else
return e;
};
var _IsIntersectingExtents = function(e0, e1)
{
return !(e0.x1 < e1.x0 || e0.x0 > e1.x1 || e0.y1 < e1.y0 || e0.y0 > e1.y1);
};
var _IsPointInExtent = function(x, y, e)
{
return !(y < e.y0
|| y > e.y1
|| (x < e.x0 && (e.ex0 == -9000.0 || x < e.ex0))
|| (x > e.x1 && (e.ex1 == -9000.0 || x > e.ex1)));
};
var _IsValueForLang = function(src, lang)
{
var d = false;
if (src != null && (typeof src == "string" || src instanceof String))
{
d = true;
}//if
if (!d && src != null)
{
for (var i=0; i<src.length; i++)
{
if (src[i].k == lang)
{
d = true;
break;
}//if
}//for
}//if
return d;
};
MapPolys.prototype._IsLocalizedPolyValuePresent = function(poly, prop)
{
return _IsValueForLang(poly[prop], this.fxGetLangPref());
};
var _GetValueForLang = function(src, lang, lang_def)
{
var d = new Array();
if (src != null && (typeof src == "string" || src instanceof String))
{
d.push(src);
}//if
if (d.length == 0 && src != null)
{
for (var i=0; i<src.length; i++)
{
if (src[i].k == lang)
{
d.push(src[i].v);
}//if
}//for
}//if
if (d.length == 0 && src != null)
{
for (var i=0; i<src.length; i++)
{
if (src[i].k == lang_def)
{
d.push(src[i].v);
}//if
}//for
}//if
if (d.length == 0 && src != null && src.length > 0)
{
d.push(src[0].v);
}//if
return d;
};
MapPolys.prototype._GetLocalizedPolyValue = function(poly, prop)
{
return _GetValueForLang(poly[prop], this.fxGetLangPref(), "en");
};
MapPolys.prototype._GetLocalizedPolyString = function(poly, prop)
{
var s = this._GetLocalizedPolyValue(poly, prop);
return s.length > 0 ? s[0] : "";
};
MapPolys.prototype.GetLocalizedDescString = function(poly)
{
var ss = this._GetLocalizedPolyValue(poly, "desc");
var s = ss.length > 0 ? ss[0] : null;
if (s == null)
{
return "";
}//if
else if (typeof s == "string" || s instanceof String)
{
return s;
}//else if
else // assume array with string
{
return s[0];
}//else
};
MapPolys.prototype._GetLocalizedString = function(key)
{
this._CheckLocalizedStrings();
var d = this.localized_strings.strings[key];
return d == null ? "" : d;
};
MapPolys.prototype._CheckLocalizedStrings = function()
{
var s = this.fxGetLangPref();
if (s != this.localized_strings.lang)
{
var cb = function(ms)
{
for (var key in ms)
{
if (key.substring(0,11) == "INFOWINDOW_")
{
this.localized_strings.strings[key] = ms[key];
}//if
}//for
this.localized_strings.lang = s;
}.bind(this);
this.fxGetLangStrings(s, cb);
}//if
};
MapPolys.prototype._GetLocalizedReferencesHeader = function()
{
return this._GetLocalizedString("INFOWINDOW_REFERENCES");
};
MapPolys.prototype._GetLocalizedAuthorHeader = function()
{
return this._GetLocalizedString("INFOWINDOW_AUTHOR_BY");
};
MapPolys.prototype._GetLocalizedCoauthorHeader = function()
{
return this._GetLocalizedString("INFOWINDOW_COAUTHOR_BY");
};
MapPolys.prototype._GetLocalizedTranslatorHeader = function()
{
return this._GetLocalizedString("INFOWINDOW_TL_BY");
};
MapPolys.prototype._GetLocalizedFullArticleLabel = function()
{
return this._GetLocalizedString("INFOWINDOW_FULL_ARTICLE");
};
MapPolys.prototype._GetLocalizedTlNaLabel = function()
{
return this._GetLocalizedString("INFOWINDOW_TL_NA");
};
var _GetInfoWindowLinksArrayOrString = function(src, vert_padding, is_always_list)
{
var d = "<tr>"
+ "<td style='padding:"+vert_padding+"px 0;'>";
if (src.length > 1 || is_always_list)
{
d += "<ul style='margin:0;padding-left:20px;'>";
}//if
for (var i=0; i<src.length; i++)
{
if (src.length > 1 || is_always_list)
{
d += "<li>";
}//if
if (typeof src[i] == 'string' || src[i] instanceof String)
{
d += src[i];
}
else if (src[i].length == 1)
{
d += src[i][0];
}
else if (src[i].length > 1)
{
d += "<a style='color:#4272DB; font-size:12px; text-decoration:none; vertical-align:bottom;' href='"
+ src[i][1]
+ "' target='_blank'>"
+ src[i][0]
+ "</a>";
}
if (src.length > 1 || is_always_list)
{
d += "</li>";
}//if
}//for
if (src.length > 1 || is_always_list)
{
d += "</ul>";
}//if
d += "</td>"
+ "</tr>";
return d;
};
var _GetInfoWindowImagesArrayOrString = function(src, tblw)
{
var c, d = "";
for (var i=0; i<src.length; i++)
{
c = false;
d += "<tr>"
+ "<td style='text-align:center; padding:3px 0;'>"
+ "<div style='display:inline-block; border:1px solid gainsboro; padding:5px 5px;'>"
+ "<img src='";
if (typeof src[i] == 'string' || src[i] instanceof String)
{
d += src[i];
}
else if (src[i].length == 1)
{
d += src[i][0];
}
else if (src[i].length > 1)
{
d += src[i][1];
c = true;
}
d += "' style='"
+ "max-width:"+(tblw-2-10-2)+"px; "
+ "max-height:"+Math.round((tblw-2-10-2)*0.75)+"px; "
+ "display:block; "
+ "margin-left:auto; margin-right:auto; "
+ "image-rendering:auto; image-rendering:-webkit-optimize-contrast; image-rendering:optimize-contrast;";
if (c && src[i].length > 2)
{
d += src[i][2];
}//if
d += "'>";
if (c && src[i][0].length > 0)
{
d += "<div style='color:#888; text-transform:uppercase; padding-top:5px; font-size:10px;'>"
+ src[i][0]
+ "</div>";
}//if
d += "</div>"
+ "</td>"
+ "</tr>";
}//for
return d;
};
var _Pad2 = function(x)
{
return x < 10 ? "0"+x : ""+x;
};
var _GetFormattedTimeStringForDate = function(d)
{
return _Pad2(d.getHours()) + ":" + _Pad2(d.getMinutes());
};
var _GetFormattedDateStringForDate = function(d)
{
return d.getFullYear() + "-" + _Pad2(d.getMonth()+1) + "-" + _Pad2(d.getDate());
};
var _GetFormattedUtcOffsetStringForDate = function(d)
{
return "UTC" + (d.getTimezoneOffset() > 0 ? "─" : "+") + _Pad2(Math.abs(d.getTimezoneOffset()/60));
};
var _GetTzAbbrStringForDate = function(d)
{
var tz = d.toLocaleString("en", {timeZoneName:"short"}).split(" ").pop();
// fix for JST resolving to "GMT-9" with the short tz specification.
if (tz.length > 3 && tz.indexOf("GMT") > -1)
{
var tzl = d.toString().split("(")[1].slice(0, -1);
if (tzl.length < tz.length) tz = tzl;
}//if
return tz;
};
var _GetDateTimeHtmlForIsoString = function(s)
{
var d = new Date(s);
var gmt = _GetFormattedUtcOffsetStringForDate(d);
var tza = _GetTzAbbrStringForDate(d);
var h = "<span style='color:#555;'>"
+ _GetFormattedDateStringForDate(d)
+ "</span>"
+ " "
+ _GetFormattedTimeStringForDate(d)
+ " "
+ "<span style='color:#CCC;'>"
+ gmt + " (" + tza + ")</span>";
return h;
};
MapPolys.prototype.GetInfoWindowContentForPoly = function(poly)
{
var cwhs = _GetClientViewSize();
var mini = cwhs[0] <= 450;
var tblw = mini ? 320-30-10-50 : 320; // Google's styles seem to add 30 x-axis pixels of padding
var mores = this._GetLocalizedPolyValue(poly, "ext_poly_more");
var atts = this._GetLocalizedPolyValue(poly, "ext_poly_atts");
var imgs = this._GetLocalizedPolyValue(poly, "ext_poly_imgs");
var tl = this._GetLocalizedPolyString(poly, "ext_poly_tl");
var coa = this._GetLocalizedPolyString(poly, "ext_poly_coauthor");
var d = "<table style='width:"+tblw+"px;border:0;border-collapse:collapse;' class='" + "FuturaFont" + "'>";
d += "<tr>"
+ "<td style='text-transform: uppercase; font-size:22px; text-align:center; padding-top:12px;'>"
+ this._GetLocalizedPolyString(poly, "ext_poly_desc")
+ "</td>"
+ "</tr>";
d += "<tr>"
+ "<td style='text-align:right; font-size:10px; color:#AAA;'>"
+ this._GetLocalizedAuthorHeader() + " "
+ this._GetLocalizedPolyString(poly, "ext_poly_author");
if (coa.length > 0)
{
d += "<br/>" + this._GetLocalizedCoauthorHeader() + " " + coa;
}//if
if (tl.length > 0)
{
d += "<br/>" + this._GetLocalizedTranslatorHeader() + ": " + tl;
}//if
d += "</td>"
+ "</tr>";
d += _GetInfoWindowImagesArrayOrString(imgs, tblw);
d += "<tr>"
+ "<td style='padding-top:5px; padding-bottom:5px;'>"
+ this._GetLocalizedPolyString(poly, "ext_poly_info")
+ "</td>"
+ "</tr>";
if (mores.length > 0)
{
d += _GetInfoWindowLinksArrayOrString(mores, 1, false); //5
}//if
if (atts.length > 0)
{
d += "<tr style='border-top:1px solid gainsboro;'>"
+ "<td style='padding-top:5px;'>"
+ this._GetLocalizedReferencesHeader()
+ "</td>"
+ "</tr>";
d += _GetInfoWindowLinksArrayOrString(atts, 1, true);
}//if
d += "<tr>"
+ "<td style='text-align:center; font-size:10px; color:#AAA; padding-top:4px;'>"
+ _GetDateTimeHtmlForIsoString(poly.ext_poly_date)
+ "</td>"
+ "</tr>";
d += "</table>";
d = d.replace(/{FULL_ARTICLE}/g, this._GetLocalizedFullArticleLabel());
d = d.replace(/{TL_NA}/g, this._IsLocalizedPolyValuePresent(poly, "ext_poly_info") ? "" : (this._GetLocalizedTlNaLabel() + " "));
return d;
};
var _GetIconScaleFactorForZ = function(z)
{
// For zoom levels > 7, the scale is always 100%.
// Otherwise, it's:
// 10% base
// + 90% scaled value of [0% - 87.5%], linear, based on zoom level.
//return z > 7 ? 1.0 : 0.1 + (1.0 - (8 - z) * 0.125) * 0.9;
return z > 13 ? 1.0 + (1.0 - (21 - z - 7) * 0.14285714) * 0.5
: z > 7 ? 1.0
: 0.5 + (1.0 - (8 - z) * 0.125) * 0.5;
};
MapPolys.prototype._RescaleIcons = function()
{
var z = this.mapref.getZoom();
var e = this._GetCurrentVisibleExtent();
/*
if ( (e.z > 7 && this.last_z > 7)
&& (e.z < 13 && this.last_z < 13)
&& e.z > this.last_z)
{
this.last_z = e.z;
return;
}//if
*/
var scale = _GetIconScaleFactorForZ(e.z);
for (var i=0; i<this.polygons.length; i++)
{
if (this.polygons[i].ext_poly_icon_w != null
&& _IsPointInExtent(this.polygons[i].getPosition().lng(), this.polygons[i].getPosition().lat(), e))
{
var ico = this.polygons[i].getIcon();
if (ico.scaledSize.width != this.polygons[i].ext_poly_icon_w * scale)
{
ico.size = new google.maps.Size(this.polygons[i].ext_poly_icon_w * scale, this.polygons[i].ext_poly_icon_h * scale);
ico.scaledSize = new google.maps.Size(this.polygons[i].ext_poly_icon_w * scale, this.polygons[i].ext_poly_icon_h * scale);
ico.anchor = new google.maps.Point(this.polygons[i].ext_poly_icon_w * scale * 0.5, this.polygons[i].ext_poly_icon_h * scale * 0.5);
this.polygons[i].setIcon(ico);
}//if
}//if
}//for
this._ShowHideClutter(e.z, scale);
this.last_z = e.z;
};
var _LatLonToXYZ_EPSG3857 = function(lat, lon, z)
{
var x = (lon + 180.0) * 0.002777778;
var s = Math.sin(lat * 0.0174532925199);
var y = 0.5 - Math.log((1.0 + s) / (1.0 - s)) * 0.0795774715459;
var w = 256 << z;
var px = parseInt(x * w + 0.5);
var py = parseInt(y * w + 0.5);
return { x:px, y:py };
};
var _IsPointCluttered = function(poly, idx, polys, z, scale, padding_px)
{
var d = false;
var zi_max = poly.getZIndex();
var mxy0 = _LatLonToXYZ_EPSG3857(poly.getPosition().lat(), poly.getPosition().lng(), z);
var ex0 = { x0:mxy0.x - (poly.ext_poly_icon_w * scale) * 0.5 - padding_px * 2.0,
y0:mxy0.y - (poly.ext_poly_icon_h * scale) * 0.5 - padding_px * 2.0,
x1:mxy0.x + (poly.ext_poly_icon_w * scale) * 0.5 + padding_px * 2.0,
y1:mxy0.y + (poly.ext_poly_icon_h * scale) * 0.5 + padding_px * 2.0 };
for (var i=0; i<polys.length; i++)
{
if (i != idx
&& polys[i].ext_poly_icon_w != null
&& polys[i].getZIndex() > zi_max)
{
var mxy1 = _LatLonToXYZ_EPSG3857(polys[i].getPosition().lat(), polys[i].getPosition().lng(), z);
var ex1 = { x0:mxy1.x - (polys[i].ext_poly_icon_w * scale) * 0.5,
y0:mxy1.y - (polys[i].ext_poly_icon_h * scale) * 0.5,
x1:mxy1.x + (polys[i].ext_poly_icon_w * scale) * 0.5,
y1:mxy1.y + (polys[i].ext_poly_icon_h * scale) * 0.5 };
if (_IsIntersectingExtents(ex0, ex1))
{
d = true;
break;
}//if
}//if
}//for
return d;
};
MapPolys.prototype._ShowHideClutter = function(z, scale)
{
var padding_px = 1.0 * scale;
for (var i=0; i<this.polygons.length; i++)
{
if (this.polygons[i].ext_poly_icon_w != null)
{
var c = z < 13 && _IsPointCluttered(this.polygons[i], i, this.polygons, z, scale, padding_px);
if (c && this.polygons[i].getMap() != null)
{
this.polygons[i].setMap(null);
}//if
else if (!c && this.polygons[i].getMap() == null)
{
this.polygons[i].setMap(this.mapref);
}//else if
}//if
else if (this.polygons[i].ext_poly_min_z != null)
{
var c = z < this.polygons[i].ext_poly_min_z
|| z > this.polygons[i].ext_poly_max_z;
if (c && this.polygons[i].getMap() != null)
{
this.polygons[i].setMap(null);
}//if
else if (!c && this.polygons[i].getMap() == null)
{
this.polygons[i].setMap(this.mapref);
}//else if
}//else if
}//for
};
MapPolys.prototype._GetJSONAsync = function(url)
{
var cb = function(response, userData)
{
var success = response != null && response.length > 0;
if (success)
{
var obj = null;
try { obj = JSON.parse(response); }
catch (err) { console.log("MapPolys: JSON parsing exception."); }
if (obj != null)
{
this.groups = _GetGroupsFilteredByEncodedPolyUse(obj.groups, obj.polys);
this.encoded_polygons = obj.polys;
this.fxMenuInit(this.groups, this.encoded_polygons);
this._RescaleIcons();
var fxRefresh = function(e) { this._RescaleIcons(); }.bind(this);
this.zoomlistener = google.maps.event.addListener(this.mapref, "zoom_changed", fxRefresh);
this.draglistener = google.maps.event.addListener(this.mapref, "dragend", fxRefresh);
}//if
else
{
success = false;
}//else
}//if
if (!success) { console.log("MapPolys: Error getting polys from URL: %s", url); }
}.bind(this);
_GetAsync_HTTP(url + "?t=" + Date.now(), null, null, cb, null);
};
var _GetPolyRefCountByGroupId = function(gs, eps)
{
var ns = new Array(gs.length);
for (var i=0; i<gs.length; i++)
{
ns[i] = 0;
}//for
for (var i=0; i<eps.length; i++)
{
for (var j=0; j<gs.length; j++)
{
if (gs[j].group_id == eps[i].group_id)
{
ns[j]++;
break;
}//if
}//for
}//for
return ns;
};
// prune any dead groups that aren't being referenced so this doesn't
// have to be checked repeatedly in the UI later.
var _GetGroupsFilteredByEncodedPolyUse = function(gs, eps)
{
var ns = _GetPolyRefCountByGroupId(gs, eps);
var d = new Array();
var txt = "";
for (var i=0; i<gs.length; i++)
{
var hr = false;
if (ns[i] > 0)
{
d.push(gs[i]);
hr = true;
}//if
else
{
var n=0;
for (var j=0; j<gs.length; j++)
{
if (gs[i].group_id == gs[j].parent_id)
{
n += ns[j];
}//if
}//for
if (n > 0)
{
d.push(gs[i]);
hr = true;
}//if
}//else
if (!hr)
{
txt += gs[i].group_id + ", ";
}//if
}//for
if (txt.length > 0)
{
console.log("MapPolys._GetGroupsFilteredByEncodedPolyUse: Purged the following unused groups: [%s]", txt);
}//if
return d;
};
var _PolysGetFirstPolyForPolyId = function(poly_id, ps)
{
var p = null;
for (var i = 0; i < ps.length; i++)
{
if (ps[i].ext_poly_id == poly_id)
{
p = ps[i];
break;
}//if
}//for
return p;
};
var _PolysDoesExistPoly = function(poly_id, ps)
{
var e = false;
for (var i = 0; i < ps.length; i++)
{
if (ps[i].ext_poly_id == poly_id)
{
e = true;
break;
}//if
}//for
return e;
};
var _GetZindexModifiedByDateStr = function(zi, dstr)
{
var d = new Date(dstr);
var dd = Math.round(d.getTime() / 86400000.0);
return zi - (32768 - dd);
};
var _GmapsCreateMarkerFromPoint = function(ep)
{
var size = new google.maps.Size(ep.icon.w, ep.icon.h);
var anch = new google.maps.Point(ep.icon.w >>> 1, ep.icon.h >>> 1);
var icon = { url:ep.icon.url, size:size, anchor:anch };
var zi = _GetZindexModifiedByDateStr(ep.icon.zi, ep.date);
icon.scaledSize = new google.maps.Size(ep.icon.w, ep.icon.h);
var yx = new google.maps.LatLng(ep.point.y, ep.point.x);
var m = new google.maps.Marker();
m.setPosition(yx);
m.setIcon(icon);
m.setZIndex(zi);
m.ext_poly_id = ep.poly_id;
m.ext_poly_group_id = ep.group_id;
m.ext_poly_desc = ep.desc;
m.ext_poly_info = ep.info;
m.ext_poly_atts = ep.atts;
m.ext_poly_more = ep.more;
m.ext_poly_author = ep.author;
m.ext_poly_coauthor = ep.coauthor;
m.ext_poly_tl = ep.tl;
m.ext_poly_date = ep.date;
m.ext_poly_imgs = ep.imgs;
m.ext_poly_icon_w = ep.icon.w;
m.ext_poly_icon_h = ep.icon.h;
return m;
};
var _GmapsCreatePolyFromPath = function(gmaps_path, ep, s, sidx)
{
var d = null;
var o =
{
clickable:(s.events == null || s.events == 1),
strokeColor:s.sc,
strokeWeight:s.sw,
strokeOpacity:s.so,
fillColor:s.fc,
fillOpacity:s.fo,
zIndex:s.zi,
ext_poly_min_z:s.min_z,
ext_poly_max_z:s.max_z,
ext_poly_line:s.line,
ext_poly_events:s.events,
ext_poly_id:ep.poly_id,
ext_poly_group_id:ep.group_id,
ext_poly_style_idx:sidx,
ext_poly_desc:ep.desc,
ext_poly_info:ep.info,
ext_poly_atts:ep.atts,
ext_poly_more:ep.more,
ext_poly_author:ep.author,
ext_poly_coauthor:ep.coauthor,
ext_poly_tl:ep.tl,
ext_poly_date:ep.date,
ext_poly_imgs:ep.imgs,
ext_poly_extent:_GetExtentForPath(gmaps_path)
};
if (s.line != null && s.line == 1)
{
o.path = gmaps_path;
d = new google.maps.Polyline(o);
}//if
else
{
o.paths = gmaps_path;
d = new google.maps.Polygon(o);
}//else
return d;
};
var _PolysNewPolysByRemovingPoly = function(poly_id, ps)
{
var d = new Array();
for (var i = 0; i < ps.length; i++)
{
if (ps[i].ext_poly_id != poly_id)
{
d.push(ps[i]);
}//if
else if (ps[i].getMap() != null)
{
google.maps.event.clearInstanceListeners(ps[i]);
ps[i].setMap(null);
}//else if
}//for
return d;
};
var _PolysNewPolysByAddingPoly = function(poly_id, ps, eps, mapref, fxAttachInfoWindow)
{
var d = new Array(ps.length);
for (var i = 0; i < ps.length; i++)
{
d[i] = ps[i];
}//for
if (!_PolysDoesExistPoly(poly_id, ps))
{
var nps = _GmapsCreatePolysFromEncodedPoly(poly_id, eps);
for (var i = 0; i < nps.length; i++)
{
nps[i].setMap(mapref);
if ( nps[i].ext_poly_events == null
|| nps[i].ext_poly_events == 1)
{
fxAttachInfoWindow(nps[i]);
}//if
d.push(nps[i]);
}//for
}//if
return d;
};
var _PolysDoesExistPoly = function(poly_id, ps)
{
var e = false;
for (var i = 0; i < ps.length; i++)
{
if (ps[i].ext_poly_id == poly_id)
{
e = true;
break;
}//if
}//for
return e;
};
var _GmapsCreatePolysFromEncodedPoly = function(poly_id, eps)
{
var d = new Array();
for (var i = 0; i < eps.length; i++)
{
if (eps[i].poly_id == poly_id && eps[i].path != null)
{
for (var j = 0; j < eps[i].ss.length; j++)
{
var path = google.maps.geometry.encoding.decodePath(eps[i].path);
var poly = _GmapsCreatePolyFromPath(path, eps[i], eps[i].ss[j], j);
d.push(poly);
}//for
}//if
else if (eps[i].poly_id == poly_id && eps[i].point != null)
{
var marker = _GmapsCreateMarkerFromPoint(eps[i]);
d.push(marker);
}//else if
}//for
return d;
};
var _GetExtentForPath = function(path)