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Filter clusters using setData
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <title>Display a map</title> | |
| <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /> | |
| <script src="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.js"></script> | |
| <link href="https://api.mapbox.com/mapbox-gl-js/v1.12.0/mapbox-gl.css" rel="stylesheet" /> | |
| <style> | |
| body { | |
| margin: 0; | |
| padding: 0; | |
| } | |
| #map { | |
| position: absolute; | |
| top: 0; | |
| bottom: 0; | |
| width: 100%; | |
| } | |
| #filter { | |
| display: block; | |
| position: relative; | |
| margin: 20px auto; | |
| width: 50%; | |
| height: 40px; | |
| padding: 10px; | |
| border: none; | |
| border-radius: 3px; | |
| font-size: 12px; | |
| text-align: center; | |
| color: #fff; | |
| background: pink; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://cdn.jsdelivr.net/npm/@turf/turf@5/turf.min.js"></script> | |
| <div id="map"></div> | |
| <button id="filter">Filter clusters</button> | |
| <script> | |
| mapboxgl.accessToken = 'pk.eyJ1IjoibWFsLXdvb2QiLCJhIjoiY2oyZ2t2em50MDAyMzJ3cnltMDFhb2NzdiJ9.X-D4Wvo5E5QxeP7K_I3O8w'; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', // container id | |
| style: 'mapbox://styles/mapbox/streets-v11', // style URL | |
| center: [-122.4136, 37.7757], // starting position [lng, lat] | |
| zoom: 9 // starting zoom | |
| }); | |
| var randomGeojson = turf.randomPoint(100, { | |
| bbox: [-122.6, 38, -122, 37] | |
| }); | |
| map.on('load', function () { | |
| map.addSource('data', { | |
| type: 'geojson', | |
| data: randomGeojson, | |
| cluster: true | |
| }).addLayer({ | |
| id: 'clusters', | |
| type: 'circle', | |
| source: 'data', | |
| paint: { | |
| 'circle-radius': 20, | |
| 'circle-color': 'white' | |
| } | |
| }).addLayer({ | |
| id: 'cluster-label', | |
| type: 'symbol', | |
| source: 'data', | |
| layout: { | |
| 'text-field': "{point_count}" | |
| } | |
| }); | |
| document.getElementById('filter').addEventListener('click', function () { | |
| var sample = turf.sample(randomGeojson, 100); | |
| map.getSource('data').setData(sample); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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