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<!DOCTYPE html>
<html>
<head>
<title>Simple Heat Map Layer - Azure Maps Web SDK Samples</title>
<meta charset="utf-8" />
<meta http-equiv="x-ua-compatible" content="IE=Edge" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<meta name="description" content="This sample shows how to create a simple heat map from a data set of point features." />
<meta name="keywords" content="map, gis, API, SDK, heatmap, heat map, heatmaps, heat maps, density, layer, thermatic" />
<meta name="author" content="Microsoft Azure Maps" />
<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.css" type="text/css" />
<script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.js"></script>
<script type='text/javascript'>
var map, datasource;
function GetMap() {
//Initialize a map instance.
map = new atlas.Map('myMap', {
view: 'Auto',
//Add your Azure Maps subscription key to the map SDK. Get an Azure Maps key at https://azure.com/maps
authOptions: {
authType: 'subscriptionKey',
subscriptionKey: '<Your Azure Maps Key>'
}
});
//Wait until the map resources are ready.
map.events.add('ready', function () {
//Create a data source and add it to the map.
datasource = new atlas.source.DataSource();
map.sources.add(datasource);
//Load a data set of points, in this case earthquake data from the USGS.
datasource.importDataFromUrl('https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_week.geojson');
//Create a heatmap and add it to the map.
map.layers.add(new atlas.layer.HeatMapLayer(datasource, null, {
radius: 10,
opacity: 0.8
}), 'labels');
});
}
</script>
</head>
<body onload="GetMap()">
<div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>
<fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
<legend>Simple Heat Map Layer</legend>
This sample shows how to create a simple heat map from a data set of point features.
In this sample each heat point will has a radius of 10 pixels at all zoom levels.
The data in this sample is sourced from the
<a href="https://earthquake.usgs.gov/" target="_blank">USGS Earthquake Hazards Program</a>
and consists of points that represents significant earthquakes that have occurred in the last 30 days.
</fieldset>
</body>
</html>
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