From 00bc424098d8df96f9d462cd57dffa371f9789b2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89ric=20Lemoine?= <eric.lemoine@gmail.com>
Date: Thu, 27 Feb 2014 10:15:26 +0100
Subject: [PATCH] Add ol.coordinate.sub

---
 src/ol/coordinate.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/ol/coordinate.js b/src/ol/coordinate.js
index 81838416aa..c34247c41f 100644
--- a/src/ol/coordinate.js
+++ b/src/ol/coordinate.js
@@ -182,6 +182,18 @@ ol.coordinate.scale = function(coordinate, s) {
 };
 
 
+/**
+ * @param {ol.Coordinate} coordinate Coordinate.
+ * @param {ol.Coordinate} delta Delta.
+ * @return {ol.Coordinate} Coordinate.
+ */
+ol.coordinate.sub = function(coordinate, delta) {
+  coordinate[0] -= delta[0];
+  coordinate[1] -= delta[1];
+  return coordinate;
+};
+
+
 /**
  * @param {ol.Coordinate} coord1 First coordinate.
  * @param {ol.Coordinate} coord2 Second coordinate.