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Move preload property default value into ol.renderer.Layer#manageTilePyramid

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This commit is contained in:
Tom Payne
2014-02-24 21:25:43 +01:00
parent 28d0d82253
commit 8c665c0bb1
2 changed files with 8 additions and 7 deletions
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6
src/ol/renderer/layerrenderer.js
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@@ -249,7 +249,8 @@ ol.renderer.Layer.prototype.snapCenterToPixel =
* @param {ol.proj.Projection} projection Projection.
* @param {ol.Extent} extent Extent.
* @param {number} currentZ Current Z.
* @param {number} preload Load low resolution tiles up to 'preload' levels.
* @param {number|undefined} preload Load low resolution tiles up to 'preload'
* levels.
* @param {function(this: T, ol.Tile)=} opt_tileCallback Tile callback.
* @param {T=} opt_this Object to use as `this` in `opt_tileCallback`.
* @protected
@@ -266,6 +267,9 @@ ol.renderer.Layer.prototype.manageTilePyramid = function(
var tileQueue = frameState.tileQueue;
var minZoom = tileGrid.getMinZoom();
var tile, tileRange, tileResolution, x, y, z;
if (!goog.isDef(preload)) {
preload = 0;
}
for (z = currentZ; z >= minZoom; --z) {
tileRange = tileGrid.getTileRangeForExtentAndZ(extent, z);
tileResolution = tileGrid.getResolution(z);