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

Merge pull request #9877 from ahocevar/pixel-buffer

Browse Source 
Fix -1 pixel buffer for vector tile extent
This commit is contained in:
Andreas Hocevar
2019-08-21 10:27:13 +02:00
committed by GitHub
parent a8b5dfa981 92931c336c
commit 053bbbf520
2 changed files with 11 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/ol/source/VectorTile.js
View File

@@ -190,7 +190,7 @@ class VectorTile extends UrlTile {
const z = urlTileCoord[0];
const resolution = tileGrid.getResolution(z);
// make extent 1 pixel smaller so we don't load tiles for < 0.5 pixel render space
bufferExtent(extent, -1 / resolution, extent);
bufferExtent(extent, -resolution, extent);
const sourceTileGrid = this.tileGrid;
const sourceExtent = sourceTileGrid.getExtent();
if (sourceExtent) {
@@ -338,7 +338,7 @@ class VectorTile extends UrlTile {
const tileGrid = this.getTileGridForProjection(projection);
const tileExtent = tileGrid.getTileCoordExtent(urlTileCoord);
// make extent 1 pixel smaller so we don't load tiles for < 0.5 pixel render space
bufferExtent(tileExtent, -1 / tileGrid.getResolution(z), tileExtent);
bufferExtent(tileExtent, -tileGrid.getResolution(z), tileExtent);
if (!intersects(sourceExtent, tileExtent)) {
urlTileCoord = null;
}

9
test/spec/ol/source/vectortile.test.js
View File

@@ -109,6 +109,15 @@ describe('ol.source.VectorTile', function() {
expect(tile.getState()).to.be(TileState.IDLE);
});
it('creates non-empty tiles for overzoomed resolutions', function() {
const source = new VectorTileSource({
maxZoom: 16
});
const tile = source.getTile(24, 9119385, 5820434, 1, source.getProjection());
tile.load();
expect(tile.getState()).to.be(TileState.LOADING);
});
it('creates new tile when source key changes', function() {
source.setKey('key1');
const tile1 = source.getTile(0, 0, 0, 1, getProjection('EPSG:3857'));