Animate a Symbol to Follow the Mouse

Move a symbol layer to the mouse position on each mousemove event.

const API_KEY = 'toursprung';

    const map = new maptoolkit.Map({
        container: 'map',
        style: `https://static.maptoolkit.net/styles/toursprung/terrain.json?api_key=${API_KEY}`,
        center: [11.39085, 47.27574],
        zoom: 12,
        attributionControl: { compact: false }
    });

    map.addControl(new maptoolkit.NavigationControl(), 'top-right');

    const dot = {
        type: 'Feature',
        geometry: { type: 'Point', coordinates: [0, 0] }
    };

    map.on('load', () => {
        map.addSource('cursor', { type: 'geojson', data: dot });

        map.addLayer({
            id: 'cursor-circle',
            type: 'circle',
            source: 'cursor',
            paint: {
                'circle-radius': 12,
                'circle-color': 'transparent',
                'circle-stroke-width': 2,
                'circle-stroke-color': '#ee8a65'
            }
        });

        map.on('mousemove', (e) => {
            dot.geometry.coordinates = [e.lngLat.lng, e.lngLat.lat];
            map.getSource('cursor').setData(dot);
        });
    });

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Animate a Symbol to Follow the Mouse – Maptoolkit Maps JS</title>
    <meta property="og:description" content="Move a symbol layer to the mouse position on each mousemove event." />
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script src="https://unpkg.com/@maptoolkit/maps@11.0.0-beta.2/dist/maptoolkit.js"></script>
    <link rel="stylesheet" href="https://unpkg.com/@maptoolkit/maps@11.0.0-beta.2/dist/maptoolkit.css" />
    <style>
        html, body { width: 100%; height: 100%; margin: 0; padding: 0; }
        #map { width: 100%; height: 100%; cursor: none; }
    </style>
</head>
<body>
<div id="map"></div>
<script>
    const API_KEY = 'toursprung';

    const map = new maptoolkit.Map({
        container: 'map',
        style: `https://static.maptoolkit.net/styles/toursprung/terrain.json?api_key=${API_KEY}`,
        center: [11.39085, 47.27574],
        zoom: 12,
        attributionControl: { compact: false }
    });

    map.addControl(new maptoolkit.NavigationControl(), 'top-right');

    const dot = {
        type: 'Feature',
        geometry: { type: 'Point', coordinates: [0, 0] }
    };

    map.on('load', () => {
        map.addSource('cursor', { type: 'geojson', data: dot });

        map.addLayer({
            id: 'cursor-circle',
            type: 'circle',
            source: 'cursor',
            paint: {
                'circle-radius': 12,
                'circle-color': 'transparent',
                'circle-stroke-width': 2,
                'circle-stroke-color': '#ee8a65'
            }
        });

        map.on('mousemove', (e) => {
            dot.geometry.coordinates = [e.lngLat.lng, e.lngLat.lat];
            map.getSource('cursor').setData(dot);
        });
    });
</script>
</body>
</html>

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