Add ol.geom.Polygon#containsCoordinate

src/ol/geom/polygon.js

@@ -26,6 +26,26 @@ ol.geom.Polygon = function(coordinates, opt_layout) {
 goog.inherits(ol.geom.Polygon, ol.geom.Geometry);
 
 
+/**
+ * @param {ol.Coordinate} coordinate Coordinate.
+ * @return {boolean} Contains coordinate.
+ */
+ol.geom.Polygon.prototype.containsCoordinate = function(coordinate) {
+  return this.containsXY(coordinate[0], coordinate[1]);
+};
+
+
+/**
+ * @param {number} x X.
+ * @param {number} y Y.
+ * @return {boolean} Contains.
+ */
+ol.geom.Polygon.prototype.containsXY = function(x, y) {
+  return ol.geom.flatLinearRingsContainsXY(
+      this.flatCoordinates, 0, this.ends_, this.stride, x, y);
+};
+
+
 /**
  * @return {ol.geom.RawPolygon} Coordinates.
  */