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Implement Drag-to-Zoom for ticket #30.

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@216 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
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crschmidt
2006-05-20 22:18:44 +00:00
parent e7c6d4df19
commit 24eb8fe144
2 changed files with 52 additions and 12 deletions
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4
lib/OpenLayers/Map.js
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@@ -220,8 +220,8 @@ OpenLayers.Map.prototype = {
*/
getZoomForExtent: function (bounds) {
var size = this.getSize();
var deg_per_pixel = bounds.getWidth() / size.w;
var zoom = Math.log(deg_per_pixel / this.maxResolution) / Math.log(2);
var deg_per_pixel = (bounds.getWidth() > bounds.getHeight() ? bounds.getWidth() / size.w : bounds.getHeight() / size.h);
var zoom = -( Math.log(deg_per_pixel / this.maxResolution) / Math.log(2) );
return Math.floor(Math.max(zoom, 0));
},