From 7f1f3fd6fec3705e6e05110e6dfa66a68963bccf Mon Sep 17 00:00:00 2001
From: Thomas Chandelle <thomas.chandelle@1spatial.com>
Date: Fri, 6 Jan 2017 15:28:38 +0100
Subject: [PATCH] Constraint center when using trackpad to zoom

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

diff --git a/src/ol/interaction/mousewheelzoom.js b/src/ol/interaction/mousewheelzoom.js
index 98039aa36e..c4ca25b3fc 100644
--- a/src/ol/interaction/mousewheelzoom.js
+++ b/src/ol/interaction/mousewheelzoom.js
@@ -183,7 +183,7 @@ ol.interaction.MouseWheelZoom.handleEvent = function(mapBrowserEvent) {
     }
     if (this.lastAnchor_) {
       var center = view.calculateCenterZoom(resolution, this.lastAnchor_);
-      view.setCenter(center);
+      view.setCenter(view.constrainCenter(center));
     }
     view.setResolution(resolution);
     if (rebound > 0) {