Methods for programmatically manipulating sketches while digitizing features. r=bartvde (closes #3343)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@12103 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
2011-06-17 18:59:16 +00:00
parent abdb336354
commit 2cf3f62d1b
12 changed files with 842 additions and 5 deletions
@@ -91,10 +91,13 @@ OpenLayers.Geometry.LinearRing = OpenLayers.Class(
     *
     * Parameters:
     * point - {<OpenLayers.Geometry.Point>}
+     *
+     * Returns: 
+     * {Boolean} The component was removed.
     */
    removeComponent: function(point) {
-        if (this.components.length > 3) {
-
+        var removed = this.components && (this.components.length > 3);
+        if (removed) {
            //remove last point
            this.components.pop();
            
@@ -106,6 +109,7 @@ OpenLayers.Geometry.LinearRing = OpenLayers.Class(
            OpenLayers.Geometry.Collection.prototype.addComponent.apply(this, 
                                                                [firstPoint]);
        }
+        return removed;
    },
    
    /**