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@arbo77
Created March 20, 2019 03:36
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Openlayers Cluster
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<link rel="stylesheet" href="http://dev.openlayers.org/theme/default/style.css" type="text/css">
<link rel="stylesheet" href="http://dev.openlayers.org/examples/style.css" type="text/css">
<script src="http://dev.openlayers.org/OpenLayers.js"></script>
<script src="http://www.acuriousanimal.com/AnimatedCluster/AnimatedCluster.js"></script>
<style>
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif
}
.smallmap {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
width: auto;
height: auto;
}
</style>
</head>
<body onload="init()">
<div id="map" class="smallmap"></div>
<script>
var map;
function init() {
var map1 = new OpenLayers.Map("map");
var osm1 = new OpenLayers.Layer.OSM();
map1.addLayer(osm1);
var center = new OpenLayers.LonLat(2, 40);
center.transform(new OpenLayers.Projection("EPSG:4326"), new OpenLayers.Projection("EPSG:900913"));
map1.setCenter(center, 2);
map1.addControl(new OpenLayers.Control.LayerSwitcher());
var colors = {
low: "rgb(181, 226, 140)",
middle: "rgb(241, 211, 87)",
high: "rgb(253, 156, 115)",
red: "rgb(243, 28, 28)",
};
var point = {
office: [
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.LESS_THAN,
property: "count",
value: 2
}),
symbolizer: {
fillColor: colors.red,
strokeWidth: 0,
fillOpacity: 0.9,
pointRadius: 5,
}
}),
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.GREATER_THAN,
property: "count",
value: 1
}),
symbolizer: {
cursor: 'pointer',
fillColor: colors.high,
fillOpacity: 1,
strokeColor: colors.high,
strokeOpacity: 0.5,
strokeWidth: 12,
pointRadius: 20,
label: "${count}",
labelOutlineWidth: .5,
fontColor: "#ffffff",
fontOpacity: 0.8,
fontSize: "12px"
}
})
],
wo: [
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.LESS_THAN,
property: "count",
value: 2
}),
symbolizer: {
fillColor: colors.low,
strokeWidth: 0,
fillOpacity: 0.9,
pointRadius: 5,
}
}),
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.GREATER_THAN,
property: "count",
value: 1
}),
symbolizer: {
cursor: 'pointer',
fillColor: colors.low,
fillOpacity: 1,
strokeColor: colors.low,
strokeOpacity: 0.5,
strokeWidth: 12,
pointRadius: 20,
label: "${count}",
labelOutlineWidth: .5,
fontColor: "#ffffff",
fontOpacity: 0.8,
fontSize: "12px"
}
})
],
}
function createVector(src, style) {
v = new OpenLayers.Layer.Vector("Features", {
protocol: new OpenLayers.Protocol.HTTP({
url: src,
format: new OpenLayers.Format.GeoJSON()
}),
eventListeners: {
'featureselected': function (evt) {
var feature = evt.feature;
console.log(feature.cluster.length);
if (feature.cluster.length === 1) {
alert(JSON.stringify(feature.cluster[0].data));
} else {
map1.zoomIn();
}
}
},
renderers: ['Canvas', 'SVG'],
strategies: [
new OpenLayers.Strategy.Fixed(),
new OpenLayers.Strategy.Cluster({
distance: 45,
}),
],
styleMap: new OpenLayers.StyleMap(style)
})
var selectControl = new OpenLayers.Control.SelectFeature(v, {});
map1.addControl(selectControl);
selectControl.activate();
return v;
}
var vector1 = createVector('others.json', new OpenLayers.Style(null, {
rules: point.office
}));
map1.addLayer(vector1);
var vector2 = createVector('others2.json', new OpenLayers.Style(null, {
rules: point.wo
}));
map1.addLayer(vector2);
}
</script>
</body>
</html>
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