59 lines
1.8 KiB
JavaScript
59 lines
1.8 KiB
JavaScript
import Map from '../../../../src/ol/Map.js';
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import TileGrid from '../../../../src/ol/tilegrid/TileGrid.js';
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import TileLayer from '../../../../src/ol/layer/WebGLTile.js';
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import View from '../../../../src/ol/View.js';
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import XYZ from '../../../../src/ol/source/XYZ.js';
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import {createXYZ} from '../../../../src/ol/tilegrid.js';
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import {get} from '../../../../src/ol/proj.js';
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import {sourcesFromTileGrid} from '../../../../src/ol/source.js';
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const resolutions = createXYZ({maxZoom: 1}).getResolutions();
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const tilePyramid = new TileGrid({
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extent: get('EPSG:3857').getExtent(),
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resolutions: [resolutions[1]],
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tileSizes: [[256, 512]],
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});
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new Map({
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target: 'map',
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layers: [
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new TileLayer({
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sources: sourcesFromTileGrid(tilePyramid, (tileCoord) => {
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let source;
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switch (tileCoord.toString()) {
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case '0,1,0':
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source = new XYZ({
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url: '/data/tiles/osm/{z}/{x}/{y}.png',
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tileGrid: new TileGrid({
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resolutions,
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minZoom: tileCoord[0],
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maxZoom: tileCoord[0] + 1,
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extent: tilePyramid.getTileCoordExtent(tileCoord),
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origin: [-20037508.342789244, 20037508.342789244],
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}),
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});
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break;
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default:
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source = new XYZ({
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url: '/data/tiles/satellite/{z}/{x}/{y}.jpg',
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tileGrid: new TileGrid({
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resolutions,
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minZoom: tileCoord[0],
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maxZoom: tileCoord[0] + 1,
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extent: tilePyramid.getTileCoordExtent(tileCoord),
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origin: [-20037508.342789244, 20037508.342789244],
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}),
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});
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}
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return source;
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}),
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}),
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],
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view: new View({
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center: [0, 0],
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zoom: 1,
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}),
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});
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render();
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