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Fix default value of numZoomLevels

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