From 689dc6e451cb177a50d633af30ce27d5f637eb6d Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Sun, 31 May 2009 11:25:09 +0000
Subject: [PATCH] Limit Osmarender zoom to 17 levels.

---
 app/views/export/start.rjs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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) {
-- 
2.43.2