From 5186fa44f589dbc19a0d45c52dde87a58958d8cf Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Tue, 19 Mar 2013 17:21:15 +0100
Subject: [PATCH] Add ol.Rectangle.isEmpty

---
 src/ol/rectangle.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/ol/rectangle.js b/src/ol/rectangle.js
index 3fc8cfbbc2..70a4add53e 100644
--- a/src/ol/rectangle.js
+++ b/src/ol/rectangle.js
@@ -104,6 +104,14 @@ ol.Rectangle.prototype.intersects = function(rectangle) {
 };
 
 
+/**
+ * @return {boolean} Is empty.
+ */
+ol.Rectangle.prototype.isEmpty = function() {
+  return this.maxX < this.minX || this.maxY < this.minY;
+};
+
+
 /**
  * @param {ol.Coordinate} coordinate Coordinate.
  * @return {ol.Coordinate} Coordinate.