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Get hit candidates from RTree, then refine result

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Now we get exact hits also for lines and polygons.
This commit is contained in:
ahocevar
2013-04-30 13:34:12 +02:00
parent cc1b70c74b
commit 58c8b07ab5
9 changed files with 208 additions and 21 deletions
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17
src/ol/map.js
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@@ -431,27 +431,16 @@ ol.Map.prototype.getCoordinateFromPixel = function(pixel) {
* Get feature information for a pixel on the map.
*
* @param {ol.Pixel} pixel Pixel coordinate relative to the map viewport.
* @param {Array.<ol.layer.Layer>|undefined} opt_layers Layers to restrict the
* query to. All layers will be queried if not provided.
* @param {Array.<ol.layer.Layer>=} opt_layers Layers to restrict the query to.
* All layers will be queried if not provided.
* @return {Array.<ol.Feature|string>} Feature information. Layers that are
* able to return attribute data will return ol.Feature instances, other
* layers will return a string which can either be plain text or markup.
*/
ol.Map.prototype.getFeatureInfoForPixel = function(pixel, opt_layers) {
var renderer = this.getRenderer();
var layers = goog.isDefAndNotNull(opt_layers) ?
opt_layers : this.getLayers().getArray();
var layer, layerRenderer;
var featureInfo = [];
for (var i = 0, ii = layers.length; i < ii; ++i) {
layer = layers[i];
layerRenderer = renderer.getLayerRenderer(layer);
if (goog.isFunction(layerRenderer.getFeatureInfoForPixel)) {
featureInfo.push.apply(featureInfo,
layerRenderer.getFeatureInfoForPixel(pixel));
}
}
return featureInfo;
return this.getRenderer().getFeatureInfoForPixel(pixel, layers);
};