leaflet.markercluster
Version:
Provides Beautiful Animated Marker Clustering functionality for Leaflet
84 lines (66 loc) • 2.89 kB
HTML
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.3/leaflet.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.3/leaflet-src.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="../screen.css" />
<link rel="stylesheet" href="../../dist/MarkerCluster.css" />
<link rel="stylesheet" href="../../dist/MarkerCluster.Default.css" />
<script src="../../src/DistanceGrid.js"></script>
<script src="../../src/MarkerCluster.js"></script>
<script src="../../src/MarkerClusterGroup.js"></script>
<script src="../../src/MarkerCluster.QuickHull.js"></script>
<script src="../../src/MarkerCluster.Spiderfier.js"></script>
</head>
<body>
<div id="map"></div>
<button id="doit">Add 1000 Markers</button><br/>
<span>Bug <a href="https://github.com/danzel/Leaflet.markercluster/issues/51">#51</a>. Click the button. It will add 1000 markers to the map. this should be fast, but previously in (non-IE browsers) it was very slow.</span><br/>
<span>Bug <a href="https://github.com/danzel/Leaflet.markercluster/issues/43">#43</a>. Improving performance more.</span><br/>
<span id="time"></span>
<script type="text/javascript">
var tiles = L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
maxZoom: 18,
attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}),
latlng = new L.LatLng(50.5, 30.51);
var map = new L.Map('map', {center: latlng, zoom: 15, layers: [tiles]});
var markers = new L.MarkerClusterGroup();
var markersList = [];
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());
}
function populate(length) {
var prestart = +new Date();
var list = [], i;
for (i = 0; i < length; i++) {
var m = new L.Marker(getRandomLatLng(map));
list.push(m);
}
var start = +new Date();
markers.addLayers(list);
var end = +new Date();
document.getElementById('time').innerHTML = 'Creating 1000 markers took: ' + (start - prestart) + 'ms . Appending 1000 markers took: ' + (end - start) + 'ms';
return false;
}
populate(1000);
var start = +new Date();
map.addLayer(markers);
var end = +new Date();
document.getElementById('time').innerHTML += ' . Adding to map took: ' + (end - start) + 'ms';
//Ugly add/remove code
L.DomUtil.get('doit').onclick = function () {
populate(1000);
};
</script>
</body>
</html>