From fe3b8d862d6a8115d58dfcc91246a4c5f3d5855c Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Sat, 9 Mar 2013 01:31:14 +0100
Subject: [PATCH] Correct center setting, thanks @elemoine

---
 src/ol/view2d.js | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/ol/view2d.js b/src/ol/view2d.js
index 39e83ee3f1..0f8bd61df6 100644
--- a/src/ol/view2d.js
+++ b/src/ol/view2d.js
@@ -263,13 +263,15 @@ goog.exportProperty(
  */
 ol.View2D.prototype.pan = function(map, delta, opt_duration) {
   var currentCenter = this.getCenter();
-  if (goog.isDef(currentCenter) && goog.isDef(opt_duration)) {
-    map.requestRenderFrame();
-    map.addPreRenderFunction(ol.animation.pan({
-      source: currentCenter,
-      duration: opt_duration,
-      easing: ol.easing.linear
-    }));
+  if (goog.isDef(currentCenter)) {
+    if (goog.isDef(opt_duration)) {
+      map.requestRenderFrame();
+      map.addPreRenderFunction(ol.animation.pan({
+        source: currentCenter,
+        duration: opt_duration,
+        easing: ol.easing.linear
+      }));
+    }
     this.setCenter(new ol.Coordinate(
         currentCenter.x + delta.x, currentCenter.y + delta.y));
   }