<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Create and style clusters</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<link rel="stylesheet" href="librerias/bootstrap/css/bootstrap.min.css" />
<script src="https://api.mapbox.com/mapbox-gl-js/v1.10.0/mapbox-gl.js"></script>
<link href="https://api.mapbox.com/mapbox-gl-js/v1.10.0/mapbox-gl.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-3.3.1.js" ></script>
<script src='https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v1.3.0/mapbox-gl-geocoder.js'></script>
<link rel='stylesheet' href='https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v1.3.0/mapbox-gl-geocoder.css' type='text/css' />
<link href='https://www.mapbox.com/base/latest/base.css' rel='stylesheet' />
<link rel='stylesheet' href='./milfs/css/mapero.css' type='text/css' />
<link rel="canonical" href="https://labs.mapbox.com/bites/00281/" >
</head>
<body>
<div id="map"></div>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoiaHVtYW5vIiwiYSI6IlgyRTFNdFEifQ.OmQBXmcVg_zq-vMpr8P5vQ';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/dark-v10',
center: [-72, 4],
zoom: 5
});
map.on('load', function () {
map.addSource("addresses", {
type: "geojson",
data: 'http://localhost/tupali/archivos/74.geojson',
cluster: true,
clusterMaxZoom: 14, // Max zoom to cluster points on
clusterRadius: 50 // Radius of each cluster when clustering points (defaults to 50)
});
/// estilos cluster
map.addLayer({
id: 'clusters',
type: 'circle',
source: 'addresses',
filter: ['has', 'point_count'],
paint: {
// Use step expressions (https://docs.mapbox.com/mapbox-gl-js/style-spec/#expressions-step)
// with three steps to implement three types of circles:
// * Blue, 20px circles when point count is less than 100
// * Yellow, 30px circles when point count is between 100 and 750
// * Pink, 40px circles when point count is greater than or equal to 750
'circle-color': [
'step', ['get', 'point_count'],
'#51bbd6',
100,
'#f1f075',
750,
'#f28cb1'
],
'circle-radius': [
'step', ['get', 'point_count'],
20,
100,
30,
750,
40
]
}
});
map.addLayer({
id: 'cluster-count',
type: 'symbol',
source: 'addresses',
filter: ['has', 'point_count'],
layout: {
'text-field': '{point_count_abbreviated}',
'text-font': ['DIN Offc Pro Medium', 'Arial Unicode MS Bold'],
'text-size': 12
}
});
map.addLayer({
id: 'unclustered-point',
type: 'circle',
source: 'addresses',
filter: ['!', ['has', 'point_count']],
paint: {
'circle-color': '#11b4da',
'circle-radius': 4,
'circle-stroke-width': 1,
'circle-stroke-color': '#fff'
}
});
/// estilos cluster
// inspect a cluster on click
map.on('click', 'clusters', function (e) {
var features = map.queryRenderedFeatures(e.point, {
layers: ['clusters']
});
var clusterId = features[0].properties.cluster_id;
map.getSource('addresses').getClusterExpansionZoom(
clusterId,
function (err, zoom) {
if (err) return;
map.easeTo({
center: features[0].geometry.coordinates,
zoom: zoom
});
}
);
});
// When a click event occurs on a feature in
// the unclustered-point layer, open a popup at
// the location of the feature, with
// description HTML from its properties.
// Store IDs and cluster/marker HTMLElements
const markers = new Map();
function updateMarkers(){
const features = map.querySourceFeatures('addresses');
const keepMarkers = [];
for (let i = 0; i < features.length; i++) {
const coords = features[ i ].geometry.coordinates;
const props = features[ i ].properties;
const icono = features[ i ].properties.imagen;
const descripcion = features[ i ].properties.description;
const featureID = features[ i ].properties.control;
const clusterID = props.cluster_id || null;
if (props.cluster && markers.has('cluster_'+clusterID)) {
//Cluster marker is already on screen
keepMarkers.push('cluster_'+clusterID);
} else if (props.cluster) {
//This feature is clustered, create an icon for it and use props.point_count for its count
/*
var el = document.createElement('div');
el.className = 'mapCluster';
el.style.width = '60px';
el.style.height = '60px';
el.style.textAlign = 'center';
el.style.color = 'white';
el.style.background = '#16d3f9';
el.style.borderRadius = '50%';
el.innerText = props.point_count;
const marker = new mapboxgl.Marker(el).setLngLat(coords);
marker.addTo(map);
keepMarkers.push('cluster_'+featureID);
markers.set('cluster_'+clusterID,el);
*/
} else if (markers.has(featureID)) {
//Feature marker is already on screen
keepMarkers.push(featureID);
} else {
//Feature is not clustered and has not been created, create an icon for it
const el = new Image();
// el.style.backgroundImage = 'url(https://placekitten.com/g/50/50)';
el.style.backgroundImage = 'url('+icono+')';
el.className = 'mapMarker';
el.style.width = '50px';
el.style.height = '50px';
// el.style.borderRadius = '50%';
el.dataset.type = props.type;
el.addEventListener('click', function() {
// window.alert("Hola mundo");
var popup = new mapboxgl.Popup({ closeOnClick: false })
.setLngLat(coords)
//.setHTML(descripcion)
.setHTML(descripcion)
.addTo(map);
});
const marker = new mapboxgl.Marker(el).setLngLat(coords);
marker.addTo(map);
keepMarkers.push(featureID);
markers.set(featureID,el);
}
}
//Let's clean-up any old markers. Loop through all markers
markers.forEach((value,key,map) => {
//If marker exists but is not in the keep array
if (keepMarkers.indexOf(key) === -1) {
console.log('deleting key: '+key);
//Remove it from the page
value.remove();
//Remove it from markers map
map.delete(key);
}
});
};
map.on('data', function (e) {
if (e.sourceId !== 'addresses' || !e.isSourceLoaded) return;
map.on('moveend', updateMarkers); // moveend also fires on zoomend
updateMarkers();
});
map.on('mouseenter', 'clusters', function () {
map.getCanvas().style.cursor = 'pointer';
});
map.on('mouseleave', 'clusters', function () {
map.getCanvas().style.cursor = '';
});
});
</script>
</body>
</html>