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Create a more accurate origin for tile positioning

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This commit is contained in:
ahocevar
2019-03-13 18:05:58 +01:00
parent df3d771c53
commit 4a9d2e689e
1 changed files with 2 additions and 2 deletions
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4
src/ol/renderer/canvas/TileLayer.js
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@@ -272,8 +272,8 @@ class CanvasTileLayerRenderer extends CanvasLayerRenderer {
const originTileCoord = tileGrid.getTileCoordForCoordAndZ(getTopLeft(canvasExtent), currentZ);
const originTileExtent = tileGrid.getTileCoordExtent(originTileCoord);
const origin = applyTransform(this.tempTransform_, [
Math.round(tilePixelRatio * (originTileExtent[0] - canvasExtent[0]) / tileResolution),
Math.round(tilePixelRatio * (canvasExtent[3] - originTileExtent[3]) / tileResolution)
tilePixelRatio * (originTileExtent[0] - canvasExtent[0]) / tileResolution,
tilePixelRatio * (canvasExtent[3] - originTileExtent[3]) / tileResolution
]);
const tileGutter = tilePixelRatio * tileSource.getGutterForProjection(projection);
const tilesToDraw = tilesToDrawByZ[currentZ];