s/ol3/ol/

src/ol/extent.js

@@ -0,0 +1,59 @@
+goog.provide('ol.Extent');
+
+goog.require('ol.Coordinate');
+goog.require('ol.Rectangle');
+goog.require('ol.TransformFunction');
+
+
+
+/**
+ * @constructor
+ * @extends {ol.Rectangle}
+ * @param {number} minX Minimum X.
+ * @param {number} minY Minimum Y.
+ * @param {number} maxX Maximum X.
+ * @param {number} maxY Maximum Y.
+ */
+ol.Extent = function(minX, minY, maxX, maxY) {
+  goog.base(this, minX, minY, maxX, maxY);
+};
+goog.inherits(ol.Extent, ol.Rectangle);
+
+
+/**
+ * @param {...ol.Coordinate} var_args Coordinates.
+ * @return {!ol.Extent} Bounding extent.
+ */
+ol.Extent.boundingExtent = function(var_args) {
+  var coordinate0 = arguments[0];
+  var extent = new ol.Extent(coordinate0.x, coordinate0.y,
+                             coordinate0.x, coordinate0.y);
+  var i;
+  for (i = 1; i < arguments.length; ++i) {
+    var coordinate = arguments[i];
+    extent.minX = Math.min(extent.minX, coordinate.x);
+    extent.minY = Math.min(extent.minY, coordinate.y);
+    extent.maxX = Math.max(extent.maxX, coordinate.x);
+    extent.maxY = Math.max(extent.maxY, coordinate.y);
+  }
+  return extent;
+};
+
+
+/**
+ * @return {ol.Extent} Extent.
+ */
+ol.Extent.prototype.clone = function() {
+  return new ol.Extent(this.minX, this.minY, this.maxX, this.maxY);
+};
+
+
+/**
+ * @param {ol.TransformFunction} transformFn Transform function.
+ * @return {ol.Extent} Extent.
+ */
+ol.Extent.prototype.transform = function(transformFn) {
+  var min = transformFn(new ol.Coordinate(this.minX, this.minY));
+  var max = transformFn(new ol.Coordinate(this.maxX, this.maxY));
+  return new ol.Extent(min.x, min.y, max.x, max.y);
+};