Add ol.Extent

src/ol/extent.js

@@ -0,0 +1,28 @@
+goog.provide('ol.Extent');
+
+goog.require('goog.math.Box');
+
+
+
+/**
+ * @constructor
+ * @extends {goog.math.Box}
+ * @param {number} top Top.
+ * @param {number} right Right.
+ * @param {number} bottom Bottom.
+ * @param {number} left Left.
+ */
+ol.Extent = function(top, right, bottom, left) {
+
+  goog.base(this, top, right, bottom, left);
+
+};
+goog.inherits(ol.Extent, goog.math.Box);
+
+
+/**
+ * @return {ol.Extent} Extent.
+ */
+ol.Extent.prototype.clone = function() {
+  return new ol.Extent(this.top, this.right, this.bottom, this.left);
+};