Update the tile source
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@@ -10,9 +10,9 @@ import {getTopLeft, getWidth} from '../src/ol/extent.js';
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const projection = getProjection('EPSG:3857');
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const projectionExtent = projection.getExtent();
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const size = getWidth(projectionExtent) / 256;
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const resolutions = new Array(14);
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const matrixIds = new Array(14);
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for (let z = 0; z < 14; ++z) {
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const resolutions = new Array(19);
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const matrixIds = new Array(19);
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for (let z = 0; z < 19; ++z) {
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// generate resolutions and matrixIds arrays for this WMTS
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resolutions[z] = size / Math.pow(2, z);
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matrixIds[z] = z;
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@@ -22,19 +22,16 @@ const map = new Map({
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layers: [
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new TileLayer({
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source: new OSM(),
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opacity: 0.7,
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}),
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new TileLayer({
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opacity: 0.7,
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source: new WMTS({
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attributions:
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'Tiles © <a href="https://services.arcgisonline.com/arcgis/rest/' +
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'services/Demographics/USA_Population_Density/MapServer/">ArcGIS</a>',
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url:
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'https://services.arcgisonline.com/arcgis/rest/' +
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'services/Demographics/USA_Population_Density/MapServer/WMTS/',
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layer: '0',
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matrixSet: 'EPSG:3857',
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'Tiles © <a href="https://mrdata.usgs.gov/geology/state/"' +
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' target="_blank">USGS</a>',
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url: 'https://mrdata.usgs.gov/mapcache/wmts',
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layer: 'sgmc2',
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matrixSet: 'GoogleMapsCompatible',
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format: 'image/png',
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projection: projection,
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tileGrid: new WMTSTileGrid({
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