mirror of
https://github.com/Leaflet/Leaflet.git
synced 2025-12-08 21:26:14 +00:00
7ac98758d4
Signed-off-by: Jon Koops <jonkoops@gmail.com> Co-authored-by: Florian Bischof <design.falke@gmail.com>
55 lines
1.5 KiB
HTML
55 lines
1.5 KiB
HTML
<!doctype html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title>Leaflet debug page - Moving Canvas</title>
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<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0" />
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<link rel="stylesheet" href="../../dist/leaflet.css" />
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<link rel="stylesheet" href="../css/screen.css" />
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<script type="importmap">
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{
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"imports": {
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"leaflet": "../../dist/leaflet-src.js"
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}
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}
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</script>
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</head>
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<body>
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<div id="map"></div>
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<script type="module">
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import {TileLayer, Map, CircleMarker} from 'leaflet';
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const osm = new TileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
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maxZoom: 19,
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attribution: '© <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
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});
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const map = new Map('map', {preferCanvas: true})
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.setView([50.5, 30.51], 15)
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.addLayer(osm);
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const markers = [];
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const colors = ['red', 'green', 'blue', 'purple', 'cyan', 'yellow'];
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for (let i = 0; i < 20; i++) {
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markers.push(new CircleMarker([50.5, 30.51], {color: colors[i % colors.length]}).addTo(map));
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}
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function update() {
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const t = new Date().getTime() / 1000;
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markers.forEach((marker, i) => {
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const v = t * (1 + i / 10) + (12.5 * i) / 180 * Math.PI;
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marker.setLatLng([
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50.5 + (i % 2 ? 1 : -1) * Math.sin(v) * 0.005,
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30.51 + (i % 3 ? 1 : -1) * Math.cos(v) * 0.005,
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]);
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});
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requestAnimationFrame(update);
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}
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update();
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</script>
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</body>
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</html>
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