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marker-clustering.html
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<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7/leaflet.css" />
<script src="http://cdn.leafletjs.com/leaflet-0.7/leaflet.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./js/leaflet.markercluster/example/screen.css" />
<link rel="stylesheet" href="./js/leaflet.markercluster/dist/MarkerCluster.css" />
<link rel="stylesheet" href="./js/leaflet.markercluster/dist/MarkerCluster.Default.css" />
<script src="./js/leaflet.markercluster/dist/leaflet.markercluster-src.js"></script>
</head>
<body>
<div id="map"></div>
<button id="populate">Populate 1 marker</button>
<button id="remove">Remove 1 marker</button>
<script type="text/javascript">
var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/BC9A493B41014CAABB98F0471D759707/997/256/{z}/{x}/{y}.png',
cloudmadeAttribution = 'Map data © 2011 OpenStreetMap contributors, Imagery © 2011 CloudMade',
cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttribution}),
latlng = new L.LatLng(50.5, 30.51);
var map = new L.Map('map', {center: latlng, zoom: 15, layers: [cloudmade]});
var markers = new L.MarkerClusterGroup();
var markersList = [];
function populate() {
for (var i = 0; i < 100; i++) {
var m = new L.Marker(getRandomLatLng(map));
markersList.push(m);
markers.addLayer(m);
}
return false;
}
function populateRandomVector() {
for (var i = 0, latlngs = [], len = 20; i < len; i++) {
latlngs.push(getRandomLatLng(map));
}
var path = new L.Polyline(latlngs);
map.addLayer(path);
}
function getRandomLatLng(map) {
var bounds = map.getBounds(),
southWest = bounds.getSouthWest(),
northEast = bounds.getNorthEast(),
lngSpan = northEast.lng - southWest.lng,
latSpan = northEast.lat - southWest.lat;
return new L.LatLng(
southWest.lat + latSpan * Math.random(),
southWest.lng + lngSpan * Math.random());
}
markers.on('clusterclick', function (a) {
alert('cluster ' + a.layer.getAllChildMarkers().length);
});
markers.on('click', function (a) {
alert('marker ' + a.layer);
});
populate();
map.addLayer(markers);
L.DomUtil.get('populate').onclick = function () {
var bounds = map.getBounds(),
southWest = bounds.getSouthWest(),
northEast = bounds.getNorthEast(),
lngSpan = northEast.lng - southWest.lng,
latSpan = northEast.lat - southWest.lat;
var m = new L.Marker(new L.LatLng(
southWest.lat + latSpan * 0.5,
southWest.lng + lngSpan * 0.5));
markersList.push(m);
markers.addLayer(m);
};
L.DomUtil.get('remove').onclick = function () {
markers.removeLayer(markersList.pop());
};
</script>
</body>
</html>