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cluster.html
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<!DOCTYPE html>
<html>
<head>
<title>Mapbox GL JS debug page</title>
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<link rel='stylesheet' href='../dist/mapbox-gl.css' />
<style>
body { margin: 0; padding: 0; }
html, body, #map { height: 100%; }
</style>
</head>
<body>
<div id='map'></div>
<script src='../dist/mapbox-gl-dev.js'></script>
<script src='../debug/access_token_generated.js'></script>
<script>
var map = window.map = new mapboxgl.Map({
container: 'map',
zoom: 1,
center: [0, 0],
style: 'mapbox://styles/mapbox/cjf4m44iw0uza2spb3q0a7s41',
hash: true
});
map.on('load', () => {
map.addSource('geojson', {
"type": "geojson",
"data": "/test/integration/data/places.geojson",
"cluster": true,
"clusterRadius": 50,
"clusterProperties": {
"max": ["max", ["get", "scalerank"]],
"sum": ["+", ["get", "scalerank"]],
"has_island": ["any", ["==", ["get", "featureclass"], "island"]]
}
});
map.addLayer({
"id": "cluster",
"type": "circle",
"source": "geojson",
"filter": ["==", "cluster", true],
"paint": {
"circle-color": ["case", ["get", "has_island"], "orange", "rgba(0, 200, 0, 1)"],
"circle-radius": 20
}
});
map.addLayer({
"id": "cluster_label",
"type": "symbol",
"source": "geojson",
"filter": ["==", "cluster", true],
"layout": {
"text-field": "{point_count} ({max})",
"text-font": ["Open Sans Semibold", "Arial Unicode MS Bold"],
"text-size": 12,
"text-allow-overlap": true,
"text-ignore-placement": true
}
});
map.addLayer({
"id": "unclustered_point",
"type": "circle",
"source": "geojson",
"filter": ["!=", "cluster", true],
"paint": {
"circle-color": "rgb(0, 0, 200)",
"circle-radius": 10
}
});
var hoverData = {
"type": "FeatureCollection",
"features": []
};
map.addSource('cluster_children', {
"type": "geojson",
"data": hoverData
});
map.addLayer({
"id": "cluster_children",
"type": "circle",
"source": "cluster_children",
"paint": {
"circle-color": "rgb(0, 150, 0)",
"circle-radius": 7
}
});
function updateHover(features) {
hoverData.features = features;
map.getSource('cluster_children').setData(hoverData);
}
map.on('click', 'cluster', (e) => {
var feature = e.features[0];
map.getSource('geojson').getClusterExpansionZoom(feature.properties.cluster_id, (err, zoom) => {
if (err) throw err;
updateHover([]);
map.easeTo({
center: feature.geometry.coordinates,
zoom
});
});
});
map.on('mouseenter', 'cluster', (e) => {
map.getCanvas().style.cursor = 'pointer';
map.getSource('geojson').getClusterLeaves(e.features[0].properties.cluster_id, Infinity, 0, (err, features) => {
if (err) throw err;
updateHover(features);
});
});
map.on('mouseleave', 'cluster', (e) => {
map.getCanvas().style.cursor = '';
updateHover([]);
});
});
map.addControl(new mapboxgl.NavigationControl());
map.addControl(new mapboxgl.GeolocateControl());
</script>
</body>
</html>