From 54d4434900b0763b1508b1ae3e080ceb13ca5edd Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Tue, 29 Sep 2015 15:21:56 +0200
Subject: [PATCH] Remove goog.isNull in animation class

---
 src/ol/animation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/animation.js b/src/ol/animation.js
index 84acd4a2d8..55d4e512ea 100644
--- a/src/ol/animation.js
+++ b/src/ol/animation.js
@@ -115,7 +115,7 @@ ol.animation.rotate = function(options) {
               (sourceRotation - frameState.viewState.rotation) * delta;
           frameState.animate = true;
           frameState.viewState.rotation += deltaRotation;
-          if (!goog.isNull(anchor)) {
+          if (anchor) {
             var center = frameState.viewState.center;
             ol.coordinate.sub(center, anchor);
             ol.coordinate.rotate(center, deltaRotation);