46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
import KML from '../../../../src/ol/format/KML.js';
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import Map from '../../../../src/ol/Map.js';
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import TileLayer from '../../../../src/ol/layer/Tile.js';
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import VectorSource from '../../../../src/ol/source/Vector.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 {Heatmap as HeatmapLayer} from '../../../../src/ol/layer.js';
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const vector = new HeatmapLayer({
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source: new VectorSource({
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url: '/data/2012_Earthquakes_Mag5.kml',
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format: new KML({
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extractStyles: false,
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}),
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}),
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blur: 3,
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radius: 3,
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opacity: 0.5,
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});
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vector.getSource().on('addfeature', function (event) {
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const name = event.feature.get('name');
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const magnitude = parseFloat(name.substr(2));
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event.feature.set('weight', magnitude - 5);
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});
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const raster = new TileLayer({
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source: new XYZ({
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url: '/data/tiles/satellite/{z}/{x}/{y}.jpg',
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transition: 0,
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}),
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});
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new Map({
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layers: [raster, vector],
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target: 'map',
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view: new View({
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center: [0, 0],
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zoom: 0,
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}),
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});
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render({
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message: 'Heatmap layer with opacity renders properly using webgl',
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});
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