From 228dfbe9934ffe79e1f72812a026075e1205d5de Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Fri, 10 May 2013 17:43:53 -0700
Subject: [PATCH] Add URL flag for translate3d

---
 js/id/renderer/map.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/js/id/renderer/map.js b/js/id/renderer/map.js
index 5dc8fa9c2..95e4e67f2 100644
--- a/js/id/renderer/map.js
+++ b/js/id/renderer/map.js
@@ -143,6 +143,9 @@ iD.Map = function(context) {
         surface.selectAll('.layer *').remove();
     }
 
+    var translate3d = !iD.detect().opera &&
+        iD.util.stringQs(location.search.substring(1)).translate3d !== '0';
+
     function zoomPan() {
         if (d3.event && d3.event.sourceEvent.type === 'dblclick') {
             if (!dblclickEnabled) {
@@ -172,9 +175,9 @@ iD.Map = function(context) {
 
         var transform =
             'scale(' + scale + ')' +
-            (iD.detect().opera ?
-                'translate(' + tX + 'px,' + tY + 'px)' :
-                'translate3d(' + tX + 'px,' + tY + 'px, 0)');
+            (translate3d ?
+                'translate3d(' + tX + 'px,' + tY + 'px, 0)' :
+                'translate(' + tX + 'px,' + tY + 'px)');
 
         transformed = true;
         supersurface.style(transformProp, transform);