From: Tom Hughes <tom@compton.nu>
Date: Sun, 31 May 2009 11:25:09 +0000 (+0000)
Subject: Limit Osmarender zoom to 17 levels.
X-Git-Tag: live~7365
X-Git-Url: https://git.openstreetmap.org/rails.git/commitdiff_plain/689dc6e451cb177a50d633af30ce27d5f637eb6d?hp=d2f2dc17781a75d6aff250e5e9fa623d711fc25f

Limit Osmarender zoom to 17 levels.
---

diff --git a/app/views/export/start.rjs b/app/views/export/start.rjs
index 47cf9ce6b..83db38002 100644
--- a/app/views/export/start.rjs
+++ b/app/views/export/start.rjs
@@ -327,7 +327,7 @@ page << <<EOJ
     var ymax = bounds.top * Math.PI / 180;
     var yzoom = Math.LOG2E * (Math.log(2000 * 2 * Math.PI) - Math.log(Math.log((Math.tan(ymax) + 1 / Math.cos(ymax)) / (Math.tan(ymin) + 1 / Math.cos(ymin)))))
 
-    return Math.floor(Math.min(xzoom, yzoom));
+    return Math.min(Math.floor(Math.min(xzoom, yzoom)), 17);
   }
 
   function roundScale(scale) {