From 9a309c50093bbf56e6f12c9aa4695c674c5900dd Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <ansis.brammanis@gmail.com>
Date: Wed, 20 Mar 2013 17:09:25 -0400
Subject: [PATCH] don't hardcode sprite size

it can change any time the sprite is rebaked
---
 js/id/svg/surface.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/js/id/svg/surface.js b/js/id/svg/surface.js
index 828fa1b16..b37e22e8b 100644
--- a/js/id/svg/surface.js
+++ b/js/id/svg/surface.js
@@ -104,14 +104,21 @@ iD.svg.Surface = function() {
             .attr('transform', function(d) { return "translate(" + d.x + "," + d.y + ")"; })
             .attr('xlink:href', '#sprite');
 
-        defs.append('image')
+        var image = defs.append('image')
             .attr({
                 id: 'maki-sprite',
-                width: 472,
-                height: 462,
                 'xlink:href': 'img/feature-icons.png'
             });
 
+        var img = document.createElement('img');
+        img.src = 'img/feature-icons.png';
+        img.onload = function() {
+            image.attr({
+                width: img.width,
+                height: img.height
+            });
+        };
+
         defs.selectAll()
             .data(sprites("feature-icons.css", /^\.(feature-[a-z0-9-]+-(12|18))$/))
             .enter().append('use')