From 11924d0d0fb6f9504107ffe33c991a72e45d94ba Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Wed, 9 Dec 2009 15:34:19 +0000
Subject: [PATCH] Only zoom by integer values with changes in the mouse wheel. 
 r=bartvde (closes #2376)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@9876 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 lib/OpenLayers/Control/Navigation.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/OpenLayers/Control/Navigation.js b/lib/OpenLayers/Control/Navigation.js
index a54ac46823..10e1387121 100644
--- a/lib/OpenLayers/Control/Navigation.js
+++ b/lib/OpenLayers/Control/Navigation.js
@@ -211,7 +211,7 @@ OpenLayers.Control.Navigation = OpenLayers.Class(OpenLayers.Control, {
      */
     wheelChange: function(evt, deltaZ) {
         var currentZoom = this.map.getZoom();
-        var newZoom = this.map.getZoom() + deltaZ;
+        var newZoom = this.map.getZoom() + Math.round(deltaZ);
         newZoom = Math.max(newZoom, 0);
         newZoom = Math.min(newZoom, this.map.getNumZoomLevels());
         if (newZoom === currentZoom) {