Avoid left shift in resolution calculations

2013-02-18 18:37:27 -07:00
parent 4c2463dd91
commit 0a5dae9ed0
4 changed files with 36 additions and 4 deletions
--- a/src/ol/tilegrid/tilegrid.js
+++ b/src/ol/tilegrid/tilegrid.js
@@ -333,8 +333,9 @@ ol.tilegrid.createForProjection =
      opt_tileSize : new ol.Size(ol.DEFAULT_TILE_SIZE, ol.DEFAULT_TILE_SIZE);
  var resolutions = new Array(maxZoom + 1);
  goog.asserts.assert(tileSize.width == tileSize.height);
+  size = size / tileSize.width;
  for (var z = 0, zz = resolutions.length; z < zz; ++z) {
-    resolutions[z] = size / (tileSize.width << z);
+    resolutions[z] = size / Math.pow(2, z);
  }
  return new ol.tilegrid.TileGrid({
    origin: projectionExtent.getTopLeft(),