Adding getVertices method to all geometries. Call with nodesOnly true if you only want endpoints (of lines and multilines). r=crschmidt (closes #1192)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@8842 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Geometry/Collection.js

@@ -401,5 +401,27 @@ OpenLayers.Geometry.Collection = OpenLayers.Class(OpenLayers.Geometry, {
         return intersect;
     },
 
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodesOnly - {Boolean} For lines, only return vertices that are
+     *     endpoints.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodesOnly) {
+        var vertices = [];
+        for(var i=0, len=this.components.length; i<len; ++i) {
+            Array.prototype.push.apply(
+                vertices, this.components[i].getVertices(nodesOnly)
+            );
+        }
+        return vertices;
+    },
+
+
     CLASS_NAME: "OpenLayers.Geometry.Collection"
 });