marker-clustering-convexhull.html
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<!DOCTYPE html>
<html>
<head>
<title>Leaflet debug page</title>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" integrity="sha512-07I2e+7D8p6he1SIM+1twR5TIrhUQn9+I6yjqD53JQjFiMf8EtC93ty0/5vJTZGF8aAocvHYNEDJajGdNx1IsQ==" crossorigin="" />
<script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet-src.js" integrity="sha512-WXoSHqw/t26DszhdMhOXOkI7qCiv5QWXhH9R7CgvgZMHz1ImlkVQ3uNsiQKu5wwbbxtPzFXd1hK4tzno2VqhpA==" crossorigin=""></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="../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 tiles = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 18,
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}),
latlng = L.latLng(50.5, 30.51);
var map = L.map('map', {center: latlng, zoom: 15, layers: [tiles]});
var markers = L.markerClusterGroup({ spiderfyOnMaxZoom: false, showCoverageOnHover: false, zoomToBoundsOnClick: false });
function populate() {
for (var i = 0; i < 100; i++) {
var m = L.marker(getRandomLatLng(map));
markers.addLayer(m);
}
return false;
}
function getRandomLatLng(map) {
var bounds = map.getBounds(),
southWest = bounds.getSouthWest(),
northEast = bounds.getNorthEast(),
lngSpan = northEast.lng - southWest.lng,
latSpan = northEast.lat - southWest.lat;
return L.latLng(
southWest.lat + latSpan * Math.random(),
southWest.lng + lngSpan * Math.random());
}
var polygon;
markers.on('clustermouseover', function (a) {
if (polygon) {
map.removeLayer(polygon);
}
polygon = L.polygon(a.layer.getConvexHull());
map.addLayer(polygon);
});
markers.on('clustermouseout', function (a) {
if (polygon) {
map.removeLayer(polygon);
polygon = null;
}
});
map.on('zoomend', function () {
if (polygon) {
map.removeLayer(polygon);
polygon = null;
}
});
populate();
map.addLayer(markers);
</script>
</body>
</html>