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Set initial tile state to EMPTY when outside source extent

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This commit is contained in:
ahocevar
2019-08-10 23:13:01 +02:00
parent 78cf32ae70
commit 28e64f646f
2 changed files with 24 additions and 5 deletions
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16
src/ol/source/VectorTile.js
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@@ -9,7 +9,7 @@ import {toSize} from '../size.js';
import UrlTile from './UrlTile.js';
import {getKeyZXY, getKey} from '../tilecoord.js';
import {createXYZ, extentFromProjection, createForProjection} from '../tilegrid.js';
import {buffer as bufferExtent, getIntersection} from '../extent.js';
import {buffer as bufferExtent, getIntersection, intersects} from '../extent.js';
import {listen, unlistenByKey} from '../events.js';
import EventType from '../events/EventType.js';
import {loadFeaturesXhr} from '../featureloader.js';
@@ -328,8 +328,18 @@ class VectorTile extends UrlTile {
}
}
const tileCoord = [z, x, y];
const urlTileCoord = this.getTileCoordForTileUrlFunction(
tileCoord, projection);
const sourceExtent = this.getTileGrid().getExtent();
let tileInExtent = true;
if (sourceExtent) {
const tileGrid = this.getTileGridForProjection(projection);
const tileExtent = tileGrid.getTileCoordExtent(tileCoord);
// make extent 1 pixel smaller so we don't load tiles for < 0.5 pixel render space
bufferExtent(tileExtent, -1 / tileGrid.getResolution(z), tileExtent);
tileInExtent = intersects(sourceExtent, tileExtent);
}
const urlTileCoord = tileInExtent ?
this.getTileCoordForTileUrlFunction(tileCoord, projection) :
null;
const newTile = new VectorRenderTile(
tileCoord,
urlTileCoord !== null ? TileState.IDLE : TileState.EMPTY,