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Make tile cache smaller and screen size dependant

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This commit is contained in:
ahocevar
2019-01-21 22:35:48 +01:00
parent a5d93117ed
commit b6d115d868
13 changed files with 25 additions and 13 deletions
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14
src/ol/source/Tile.js
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@@ -68,11 +68,23 @@ class TileSource extends Source {
*/
this.tileGrid = options.tileGrid !== undefined ? options.tileGrid : null;
let cacheSize = options.cacheSize;
if (cacheSize === undefined) {
const tileSize = [256, 256];
const tileGrid = options.tileGrid;
if (tileGrid) {
toSize(tileGrid.getTileSize(tileGrid.getMinZoom()), tileSize);
}
const width = screen ? (screen.availWidth || screen.width) : 1920;
const height = screen ? (screen.availHeight || screen.height) : 1080;
cacheSize = 2 * Math.ceil(width / tileSize[0]) * Math.ceil(height / tileSize[1]);
}
/**
* @protected
* @type {import("../TileCache.js").default}
*/
this.tileCache = new TileCache(options.cacheSize);
this.tileCache = new TileCache(cacheSize);
/**
* @protected