From f5785549aee1f86c5b1635660407281dbdb45c57 Mon Sep 17 00:00:00 2001
From: Thomas Chandelle <thomas.chandelle@1spatial.com>
Date: Mon, 9 Jan 2017 09:05:51 +0100
Subject: [PATCH] Constrain center in DragZoom interaction

---
 src/ol/interaction/dragzoom.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/ol/interaction/dragzoom.js b/src/ol/interaction/dragzoom.js
index ab54c2e467..afb57a8a4e 100644
--- a/src/ol/interaction/dragzoom.js
+++ b/src/ol/interaction/dragzoom.js
@@ -74,9 +74,12 @@ ol.interaction.DragZoom.prototype.onBoxEnd = function() {
   var resolution = view.constrainResolution(
       view.getResolutionForExtent(extent, size));
 
+  var center = ol.extent.getCenter(extent);
+  center = view.constrainCenter(center);
+
   view.animate({
     resolution: resolution,
-    center: ol.extent.getCenter(extent),
+    center: center,
     duration: this.duration_,
     easing: ol.easing.easeOut
   });