Fix default value of numZoomLevels

2012-09-27 15:46:45 +02:00
parent b8356f5e2e
commit 4f116c2e5b
1 changed files with 4 additions and 2 deletions
--- a/src/ol/mapoptions.js
+++ b/src/ol/mapoptions.js
@@ -191,8 +191,10 @@ ol.MapOptions.createConstraints_ = function(mapOptionsLiteral) {
      zoomFactor = mapOptionsLiteral.zoomFactor;
    } else {
      maxResolution = ol.Projection.EPSG_3857_HALF_SIZE / 128;
-      numZoomLevels = 29;
-      zoomFactor = Math.exp(Math.log(2) / 4);
+      // number of steps we want between two data resolutions
+      var numSteps = 4;
+      numZoomLevels = 29 * numSteps;
+      zoomFactor = Math.exp(Math.log(2) / numSteps);
    }
    resolutionConstraint = ol.ResolutionConstraint.createSnapToPower(
        zoomFactor, maxResolution, numZoomLevels - 1);