Animate a marker
Animate the position of a Marker by updating its location on each frame.
<!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">
<link href="https://api.mapbox.com/mapbox-gl-js/v3.9.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v3.9.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
const map = new mapboxgl.Map({
container: 'map',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/streets-v12',
center: [0, 0],
zoom: 2
});
// Add a new Marker.
const marker = new mapboxgl.Marker({
color: '#F84C4C' // color it red
});
// Define the animation.
function animateMarker(timestamp) {
const 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 the marker is 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>
This code snippet will not work as expected until you replace
YOUR_MAPBOX_ACCESS_TOKEN with an access token from your Mapbox account.import React, { useEffect, useRef } from 'react';
import mapboxgl from 'mapbox-gl';
import 'mapbox-gl/dist/mapbox-gl.css';
const MapboxExample = () => {
const mapContainerRef = useRef();
const mapRef = useRef();
useEffect(() => {
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
mapRef.current = new mapboxgl.Map({
container: 'map',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/streets-v12',
center: [0, 0],
zoom: 2
});
// Add a new Marker.
const marker = new mapboxgl.Marker({
color: '#F84C4C' // color it red
});
// Define the animation.
function animateMarker(timestamp) {
const 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 the marker is added to the mapRef.
This is safe to call if it's already added.
*/
marker.addTo(mapRef.current);
// Request the next frame of the animation.
requestAnimationFrame(animateMarker);
}
// Start the animation.
requestAnimationFrame(animateMarker);
// Clean up by removing marker and map on component unmount
return () => {
marker.remove();
mapRef.current.remove();
};
}, []);
return <div id="map" ref={mapContainerRef} style={{ height: '100%' }}></div>;
};
export default MapboxExample;
This code snippet will not work as expected until you replace
YOUR_MAPBOX_ACCESS_TOKEN with an access token from your Mapbox account.Was this example helpful?