Add ol.geom.Polygon

src/ol/geom/polygon.js

@@ -0,0 +1,63 @@
+goog.provide('ol.geom.Polygon');
+
+goog.require('goog.asserts');
+goog.require('ol.extent');
+goog.require('ol.geom.Geometry');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.geom.Geometry}
+ * @param {Array.<Array.<ol.Coordinate>>} rings Rings.
+ */
+ol.geom.Polygon = function(rings) {
+
+  goog.base(this);
+
+  /**
+   * @private
+   * @type {Array.<Array.<ol.Coordinate>>}
+   */
+  this.rings_ = rings;
+
+};
+goog.inherits(ol.geom.Polygon, ol.geom.Geometry);
+
+
+/**
+ * @inheritDoc
+ */
+ol.geom.Polygon.prototype.getExtent = function(opt_extent) {
+  if (this.extentRevision != this.revision) {
+    this.extent = ol.extent.createOrUpdateFromRings(this.rings_, this.extent);
+    this.extentRevision = this.revision;
+  }
+  goog.asserts.assert(goog.isDef(this.extent));
+  return ol.extent.returnOrUpdate(this.extent, opt_extent);
+};
+
+
+/**
+ * @return {Array.<Array.<ol.Coordinate>>} Rings.
+ */
+ol.geom.Polygon.prototype.getRings = function() {
+  return this.rings_;
+};
+
+
+/**
+ * @inheritDoc
+ */
+ol.geom.Polygon.prototype.getType = function() {
+  return ol.geom.GeometryType.POLYGON;
+};
+
+
+/**
+ * @param {Array.<Array.<ol.Coordinate>>} rings Rings.
+ */
+ol.geom.Polygon.prototype.setRings = function(rings) {
+  this.rings_ = rings;
+  this.dispatchChangeEvent();
+};