Allow instanceof checks for geometries

src/ol/geom/geometry.js

@@ -7,7 +7,7 @@ goog.provide('ol.geom.GeometryType');
 
 
 /**
- * @interface
+ * @constructor
  */
 ol.geom.Geometry = function() {};
 
@@ -30,7 +30,7 @@ ol.geom.Geometry.prototype.getBounds = goog.abstractMethod;
  * Get the geometry type.
  * @return {ol.geom.GeometryType} The geometry type.
  */
-ol.geom.Geometry.prototype.getType = function() {};
+ol.geom.Geometry.prototype.getType = goog.abstractMethod;
 
 
 /**

src/ol/geom/geometrycollection.js

@@ -10,10 +10,12 @@ goog.require('ol.geom.GeometryType');
  * A collection of geometries.  This constructor should not called.  Instead
  * create one of the fixed type collections.
  * @constructor
- * @implements {ol.geom.Geometry}
+ * @extends {ol.geom.Geometry}
  */
 ol.geom.GeometryCollection = function() {
 
+  goog.base(this);
+
   /**
    * @type {Array.<ol.geom.Geometry>}
    */
@@ -31,6 +33,7 @@ ol.geom.GeometryCollection = function() {
   this.bounds = null;
 
 };
+goog.inherits(ol.geom.GeometryCollection, ol.geom.Geometry);
 
 
 /**

src/ol/geom/linestring.js

@@ -10,12 +10,14 @@ goog.require('ol.geom.GeometryType');
 
 /**
  * @constructor
- * @implements {ol.geom.Geometry}
+ * @extends {ol.geom.Geometry}
  * @param {ol.geom.CoordinateArray} coordinates Coordinates array (e.g.
  *    [[x0, y0], [x1, y1]]).
  */
 ol.geom.LineString = function(coordinates) {
 
+  goog.base(this);
+
   // assume the same dimension for all coordinates
   var dimension = coordinates[0].length,
       count = coordinates.length,
@@ -43,6 +45,7 @@ ol.geom.LineString = function(coordinates) {
   this.bounds_ = null;
 
 };
+goog.inherits(ol.geom.LineString, ol.geom.Geometry);
 
 
 /**

src/ol/geom/point.js

@@ -10,11 +10,13 @@ goog.require('ol.geom.GeometryType');
 
 /**
  * @constructor
- * @implements {ol.geom.Geometry}
+ * @extends {ol.geom.Geometry}
  * @param {ol.geom.Coordinate} coordinates Coordinates array (e.g. [x, y]).
  */
 ol.geom.Point = function(coordinates) {
 
+  goog.base(this);
+
   /**
    * @type {Float64Array}
    */
@@ -33,6 +35,7 @@ ol.geom.Point = function(coordinates) {
   this.bounds_ = null;
 
 };
+goog.inherits(ol.geom.Point, ol.geom.Geometry);
 
 
 /**

src/ol/geom/polygon.js

@@ -11,12 +11,14 @@ goog.require('ol.geom.LinearRing');
 
 /**
  * @constructor
- * @implements {ol.geom.Geometry}
+ * @extends {ol.geom.Geometry}
  * @param {Array.<ol.geom.CoordinateArray>} coordinates Array of rings.  First
  *    is outer, any remaining are inner.
  */
 ol.geom.Polygon = function(coordinates) {
 
+  goog.base(this);
+
   var numRings = coordinates.length,
       dimension;
 
@@ -46,6 +48,7 @@ ol.geom.Polygon = function(coordinates) {
   this.bounds_ = null;
 
 };
+goog.inherits(ol.geom.Polygon, ol.geom.Geometry);
 
 
 /**