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Cope with missing layer renderers

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This commit is contained in:
Tom Payne
2012-07-15 20:44:52 +02:00
parent bcf6e7d7b1
commit 74bfdd7ebe
1 changed files with 7 additions and 4 deletions
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11
src/ol/map.js
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@@ -446,10 +446,13 @@ ol.Map.prototype.redrawInternal = function() {
*/ */
ol.Map.prototype.removeLayerRenderer = function(layer) { ol.Map.prototype.removeLayerRenderer = function(layer) {
var key = goog.getUid(layer); var key = goog.getUid(layer);
goog.asserts.assert(key in this.layerRenderers); if (key in this.layerRenderers) {
var layerRenderer = this.layerRenderers[key]; var layerRenderer = this.layerRenderers[key];
delete this.layerRenderers[key]; delete this.layerRenderers[key];
return layerRenderer; return layerRenderer;
} else {
return null;
}
}; };