---
title: "Create a draggable point | JavaScript maps SDK"
description: "Create a draggable point and display its map coordinates."
---
> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.
# Create a draggable point
Drag the point to a new location on a map and populate its coordinates in a display.
### 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 coordinates = document.getElementById('coordinates');
const map = new Map({
container: 'map',
style: MapStyle.STREETS,
center: [0, 0],
zoom: 2
});
const canvas = map.getCanvasContainer();
const geojson = {
'type': 'FeatureCollection',
'features': [
{
'type': 'Feature',
'geometry': {
'type': 'Point',
'coordinates': [0, 0]
}
}
]
};
function onMove(e) {
const coords = e.lngLat;
// Set a UI indicator for dragging.
canvas.style.cursor = 'grabbing';
// Update the Point feature in `geojson` coordinates
// and call setData to the source layer `point` on it.
geojson.features[0].geometry.coordinates = [coords.lng, coords.lat];
map.getSource('point').setData(geojson);
}
function onUp(e) {
const coords = e.lngLat;
// Print the coordinates of where the point had
// finished being dragged to on the map.
coordinates.style.display = 'block';
coordinates.innerHTML =
'Longitude: ' + coords.lng + ' Latitude: ' + coords.lat;
canvas.style.cursor = '';
// Unbind mouse/touch events
map.off('mousemove', onMove);
map.off('touchmove', onMove);
}
map.on('load', function () {
// Add a single point to the map
map.addSource('point', {
'type': 'geojson',
'data': geojson
});
map.addLayer({
'id': 'point',
'type': 'circle',
'source': 'point',
'paint': {
'circle-radius': 10,
'circle-color': '#3887be'
}
});
// When the cursor enters a feature in the point layer, prepare for dragging.
map.on('mouseenter', 'point', function () {
map.setPaintProperty('point', 'circle-color', '#3bb2d0');
canvas.style.cursor = 'move';
});
map.on('mouseleave', 'point', function () {
map.setPaintProperty('point', 'circle-color', '#3887be');
canvas.style.cursor = '';
});
map.on('mousedown', 'point', function (e) {
// Prevent the default map drag behavior.
e.preventDefault();
canvas.style.cursor = 'grab';
map.on('mousemove', onMove);
map.once('mouseup', onUp);
});
map.on('touchstart', 'point', function (e) {
if (e.points.length !== 1) return;
// Prevent the default map drag behavior.
e.preventDefault();
map.on('touchmove', onMove);
map.once('touchend', onUp);
});
});
```
#### index.html
```html
Create a draggable point | NPM example
```
#### style.css
```css
body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}
```
### Basic JavaScript setup
```html
Create a draggable point
```
## Related examples
### [Create a draggable marker](https://docs.maptiler.com/sdk-js/examples/drag-a-marker/)
Examples
Create a draggable marker and display its map coordinates.
### [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.
### [Animate a point](https://docs.maptiler.com/sdk-js/examples/animate-point-along-line/)
Examples
Animate a point position using GeoJSON frame updates.
### [Display a popup on click](https://docs.maptiler.com/sdk-js/examples/popup-on-click/)
Examples
Display a popup when a user clicks a symbol.