Improve line updates

src/canvas/lineFeature.js

@@ -3,11 +3,11 @@ var registerFeature = require('../registry').registerFeature;
 var lineFeature = require('../lineFeature');
 
 /**
- * Create a new instance of class lineFeature
+ * Create a new instance of class lineFeature.
  *
  * @class geo.canvas.lineFeature
  * @extends geo.lineFeature
- * @extends geo.canvas.object
+ * @param {geo.lineFeature.spec} arg
  * @returns {geo.canvas.lineFeature}
  */
 var canvas_lineFeature = function (arg) {
@@ -29,9 +29,10 @@ var canvas_lineFeature = function (arg) {
 
   /**
    * Render the data on the canvas.
+   *
    * @protected
    * @param {object} context2d the canvas context to draw in.
-   * @param {object} map the parent map object.
+   * @param {geo.map} map the parent map object.
    */
   this._renderOnCanvas = function (context2d, map) {
     var data = m_this.data(),

src/d3/lineFeature.js

@@ -3,11 +3,11 @@ var registerFeature = require('../registry').registerFeature;
 var lineFeature = require('../lineFeature');
 
 /**
- * Create a new instance of class lineFeature
+ * Create a new instance of class lineFeature.
  *
  * @class geo.d3.lineFeature
  * @extends geo.lineFeature
- * @extends geo.d3.object
+ * @param {geo.lineFeature.spec} arg
  * @returns {geo.d3.lineFeature}
  */
 var d3_lineFeature = function (arg) {
@@ -35,17 +35,20 @@ var d3_lineFeature = function (arg) {
       s_update = this._update;
 
   /**
-   * Initialize
+   * Initialize.
+   *
+   * @param {geo.lineFeature.spec} arg The feature specification.
+   * @returns {this}
    */
   this._init = function (arg) {
     s_init.call(m_this, arg);
     return m_this;
   };
 
   /**
-   * Build
+   * Build.  Create the necessary elements to render lines.
    *
-   * @override
+   * @returns {this}
    */
   this._build = function () {
     var data = m_this.data() || [],
@@ -109,9 +112,9 @@ var d3_lineFeature = function (arg) {
   };
 
   /**
-   * Update
+   * Update.  Rebuild if necessary.
    *
-   * @override
+   * @returns {this}
    */
   this._update = function () {
     s_update.call(m_this);