---
title: "Animate a marker | JavaScript maps SDK"
description: "Animate map marker positions by updating locations each frame."
---
# Animate a marker
Update the location of a [`Marker`](https://docs.maptiler.com/sdk-js/api/markers/#marker) on each frame to animate its position.
### NPM module setup
```bash
npm install --save @maptiler/sdk
```
#### main.js
```js
import { Map, MapStyle, config } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';
config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const map = new Map({
container: 'map',
style: MapStyle.STREETS,
center: [0, 0],
zoom: 2
});
const marker = new maptilersdk.Marker();
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 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);
```
#### index.html
```html
Animate a marker | NPM example
```
#### style.css
```css
body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}
```
### Basic JavaScript setup
```html
Animate a marker
```
## Related examples
### [Animate a line](https://docs.maptiler.com/sdk-js/examples/animate-a-line/)
Examples
Animate lines by updating GeoJSON sources on every frame.
### [Add an animated icon to the map](https://docs.maptiler.com/sdk-js/examples/add-image-animated/)
Examples
Add animated icons generated at runtime using Canvas API.
### [Animate a point along a route](https://docs.maptiler.com/sdk-js/examples/animate-point-along-route/)
Examples
Smoothly animate a point along a route using Turf.