ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge pull request #3066 from tsauerwein/webgl-point-hasFeatureAtPixel

Browse Source 
Introduce hasFeatureAtPixel
This commit is contained in:
Tobias Sauerwein
2015-01-22 10:20:00 +01:00
parent 53f98dcf4e c85982bbe5
commit 1702a4ed36
9 changed files with 280 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/ol/map.js
View File

@@ -589,6 +589,34 @@ ol.Map.prototype.forEachFeatureAtPixel =
};
/**
* Detect if features intersect a pixel on the viewport. Layers included in the
* detection can be configured through `opt_layerFilter`. Feature overlays will
* always be included in the detection.
* @param {ol.Pixel} pixel Pixel.
* @param {(function(this: U, ol.layer.Layer): boolean)=} opt_layerFilter Layer
* filter function, only layers which are visible and for which this
* function returns `true` will be tested for features. By default, all
* visible layers will be tested. Feature overlays will always be tested.
* @param {U=} opt_this2 Value to use as `this` when executing `layerFilter`.
* @return {boolean} Is there a feature at the given pixel?
* @template U
* @api
*/
ol.Map.prototype.hasFeatureAtPixel =
function(pixel, opt_layerFilter, opt_this2) {
if (goog.isNull(this.frameState_)) {
return false;
}
var coordinate = this.getCoordinateFromPixel(pixel);
var layerFilter = goog.isDef(opt_layerFilter) ?
opt_layerFilter : goog.functions.TRUE;
var thisArg2 = goog.isDef(opt_this2) ? opt_this2 : null;
return this.renderer_.hasFeatureAtPixel(
coordinate, this.frameState_, layerFilter, thisArg2);
};
/**
* Returns the geographical coordinate for a browser event.
* @param {Event} event Event.