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Animate map camera around a point

Animate map camera around a point

Animate the map camera around a point.

Animate map camera around a point
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Animate map camera around a point</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: [105.81285, 21.03215],
        zoom: 15.5,
        pitch: 45
    });

    function rotateCamera(timestamp) {
        // clamp the rotation between 0 -360 degrees
        // Divide timestamp by 100 to slow rotation to ~10 degrees / sec
        map.rotateTo((timestamp / 100) % 360, { duration: 0 });
        // Request the next frame of the animation.
        requestAnimationFrame(rotateCamera);
    }

    map.on('load', function () {
        // Start the animation.
        rotateCamera(0);

        // Add 3d buildings and remove label layers to enhance the map
        var layers = map.getStyle().layers;
        for (var i = 0; i < layers.length; i++) {
            if (layers[i].type === 'symbol' && layers[i].layout['text-field']) {
                // remove text labels
                map.removeLayer(layers[i].id);
            }
        }

        map.addLayer({
            'id': '3d-buildings',
            'source': 'composite',
            'source-layer': 'VN_Building',
            'filter': ['==', 'extrude', 'true'],
            'type': 'fill-extrusion',
            'minzoom': 15,
            'paint': {
                'fill-extrusion-color': '#aaa',

                // use an 'interpolate' expression to add a smooth transition effect to the
                // buildings as the user zooms in
                'fill-extrusion-height': [
                    'interpolate',
                    ['linear'],
                    ['zoom'],
                    15,
                    0,
                    15.05,
                    ['get', 'height']
                ],
                'fill-extrusion-base': [
                    'interpolate',
                    ['linear'],
                    ['zoom'],
                    15,
                    0,
                    15.05,
                    ['get', 'min_height']
                ],
                'fill-extrusion-opacity': 0.6
            }
        });
    });
</script>
</body>
</html>