From 00917b72628f9d5ed1bd7121250baa988ec5a91a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89ric=20Lemoine?= <eric.lemoine@gmail.com>
Date: Thu, 27 Feb 2014 10:16:18 +0100
Subject: [PATCH] Export ol.View2D#rotate

---
 src/ol/view2d.exports |  1 +
 src/ol/view2d.js      | 10 ++++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/ol/view2d.exports b/src/ol/view2d.exports
index 01d44dd7b5..e665804784 100644
--- a/src/ol/view2d.exports
+++ b/src/ol/view2d.exports
@@ -7,4 +7,5 @@
 @exportProperty ol.View2D.prototype.centerOn
 @exportProperty ol.View2D.prototype.getView2D
 @exportProperty ol.View2D.prototype.getZoom
+@exportProperty ol.View2D.prototype.rotate
 @exportProperty ol.View2D.prototype.setZoom
diff --git a/src/ol/view2d.js b/src/ol/view2d.js
index 3f82ed736c..e8df7039b1 100644
--- a/src/ol/view2d.js
+++ b/src/ol/view2d.js
@@ -537,12 +537,14 @@ ol.View2D.prototype.isDef = function() {
 /**
  * Rotate the view around a given coordinate.
  * @param {number} rotation New rotation value for the view.
- * @param {ol.Coordinate} anchor The rotation center.
+ * @param {ol.Coordinate=} opt_anchor The rotation center.
  */
-ol.View2D.prototype.rotate = function(rotation, anchor) {
-  var center = this.calculateCenterRotate(rotation, anchor);
+ol.View2D.prototype.rotate = function(rotation, opt_anchor) {
+  if (goog.isDef(opt_anchor)) {
+    var center = this.calculateCenterRotate(rotation, opt_anchor);
+    this.setCenter(center);
+  }
   this.setRotation(rotation);
-  this.setCenter(center);
 };