Add a pattern to a polygon
This example uses an image from an external URL as a repeating pattern that fills a polygon feature on the map.
It uses loadImage()
to load the image from an external URL, then adds the loaded image to the style with addImage()
. Then it uses addLayer()
to create a new symbol layer that uses fill-pattern
to fill a polygon with a pattern created by the repeating image.
<!DOCTYPE html><html><head><meta charset="utf-8"><title>Add a pattern to a polygon</title><meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no"><link href="https://api.mapbox.com/mapbox-gl-js/v2.14.1/mapbox-gl.css" rel="stylesheet"><script src="https://api.mapbox.com/mapbox-gl-js/v2.14.1/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', // container ID// Choose from Mapbox's core styles, or make your own style with Mapbox Studiostyle: 'mapbox://styles/mapbox/streets-v12', // style URLcenter: [-105.819711, 39.147614], // starting positionzoom: 5 // starting zoom}); map.on('load', () => {// Add the GeoJSON data.map.addSource('source', {'type': 'geojson','data': {'type': 'Feature','properties': {},'geometry': {'type': 'Polygon','coordinates': [[[-108.977199, 40.975108],[-102.105019, 40.995138],[-102.078486, 37.017605],[-109.083333, 37.017605],[-108.977199, 40.975108]]]}}}); // Load an image to use as the pattern from an external URL.map.loadImage('https://docs.mapbox.com/mapbox-gl-js/assets/colorado_flag.png',(err, image) => {// Throw an error if something goes wrong.if (err) throw err; // Add the image to the map style.map.addImage('pattern', image); // Create a new layer and style it using `fill-pattern`.map.addLayer({'id': 'pattern-layer','type': 'fill','source': 'source','paint': {'fill-pattern': 'pattern'}});});});</script> </body></html>