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Added buffer to ol.renderer.canvas.VectorTileLayer#forEachFeatureAtCoordinate

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buffering by pointResolution times hitTolerance
This commit is contained in:
simonseyock
2016-11-10 17:26:48 +01:00
parent 3a08cfd7c6
commit eede027417
1 changed files with 4 additions and 2 deletions
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6
src/ol/renderer/canvas/vectortilelayer.js
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@@ -179,6 +179,7 @@ ol.renderer.canvas.VectorTileLayer.prototype.drawTileImage = function(
ol.renderer.canvas.VectorTileLayer.prototype.forEachFeatureAtCoordinate = function(coordinate, frameState, hitTolerance, callback, thisArg) {
var resolution = frameState.viewState.resolution;
var rotation = frameState.viewState.rotation;
hitTolerance = hitTolerance == undefined ? 0 : hitTolerance;
var layer = this.getLayer();
/** @type {Object.<string, boolean>} */
var features = {};
@@ -190,12 +191,13 @@ ol.renderer.canvas.VectorTileLayer.prototype.forEachFeatureAtCoordinate = functi
var tileGrid = source.getTileGrid();
var found, tileSpaceCoordinate;
var i, ii, origin, replayGroup;
var tile, tileCoord, tileExtent, tilePixelRatio, tileResolution;
var tile, tileCoord, tileExtent, tilePixelRatio, tileResolution, pointResolution;
for (i = 0, ii = replayables.length; i < ii; ++i) {
tile = replayables[i];
tileCoord = tile.tileCoord;
tileExtent = source.getTileGrid().getTileCoordExtent(tileCoord, this.tmpExtent);
if (!ol.extent.containsCoordinate(tileExtent, coordinate)) {
pointResolution = tile.getProjection().getPointResolution(resolution, coordinate);
if (!ol.extent.containsCoordinate(ol.extent.buffer(tileExtent, hitTolerance * pointResolution), coordinate)) {
continue;
}
if (tile.getProjection().getUnits() === ol.proj.Units.TILE_PIXELS) {