animate-marker | Goong Documents

Animate the position of a Marker by updating its location on each frame.
Animate a marker

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Animate a marker</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.js"></script>
<link href="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.css" rel="stylesheet" />
<style>
	body { margin: 0; padding: 0; }
    #map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>

<div id="map"></div>
<script>
    goongjs.accessToken = 'wnicbAmnNkoMHNYUKWnlFHezV189FjmMwkNJ7hKW';
    var map = new goongjs.Map({
        container: 'map',
        style: 'https://tiles.goong.io/assets/goong_map_web.json',
        center: [0, 0],
        zoom: 2
    });

    var marker = new goongjs.Marker();

    function animateMarker(timestamp) {
        var radius = 20;

        // Update the data to a new position based on the animation timestamp. The
        // divisor in the expression `timestamp / 1000` controls the animation speed.
        marker.setLngLat([
            Math.cos(timestamp / 1000) * radius,
            Math.sin(timestamp / 1000) * radius
        ]);

        // Ensure it's added to the map. This is safe to call if it's already added.
        marker.addTo(map);

        // Request the next frame of the animation.
        requestAnimationFrame(animateMarker);
    }

    // Start the animation.
    requestAnimationFrame(animateMarker);
</script>
</body>
</html>