From 41ccb4dfcdfaf4eb1f1964c27a35de275fd6d701 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Wed, 16 Jan 2013 11:48:22 +0100
Subject: [PATCH] Add ol.Rectangle.extend

---
 src/ol/rectangle.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/ol/rectangle.js b/src/ol/rectangle.js
index 2b8dbc3997..d15f1d7a18 100644
--- a/src/ol/rectangle.js
+++ b/src/ol/rectangle.js
@@ -41,6 +41,17 @@ ol.Rectangle = function(minX, minY, maxX, maxY) {
 };
 
 
+/**
+ * @param {ol.Rectangle} rectangle Rectangle.
+ */
+ol.Rectangle.prototype.extend = function(rectangle) {
+  this.minX = Math.min(this.minX, rectangle.minX);
+  this.minY = Math.min(this.minY, rectangle.minY);
+  this.maxX = Math.max(this.maxX, rectangle.maxX);
+  this.maxY = Math.max(this.maxY, rectangle.maxY);
+};
+
+
 /**
  * @return {ol.Coordinate} Center.
  */