Samples/Heatmap Layer/Customized/Customized Heat Map.html

﻿<!DOCTYPE html>
<html lang="en">
<head>
    <title>Customized Heat Map - Bing Maps Samples</title>

    <meta charset="utf-8" />
	<link rel="shortcut icon" href="/favicon.ico"/>
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <meta name="description" content="The heat map is customized such that the intensity is increased to 0.65, and a custom color gradient is used." />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, Bing, Bing Maps" />
    <meta name="author" content="Microsoft Bing Maps" />
    <meta name="screenshot" content="screenshot.jpg" />
    
    <script>
    function GetMap() {
        var map = new Microsoft.Maps.Map('#myMap', {
            mapTypeId: Microsoft.Maps.MapTypeId.aerial,
            center: new Microsoft.Maps.Location(39.5, -98.4),
            zoom: 4
        });
        //Generate a 50,000 random locations that are within the bounds of the map view.
        var locs = Microsoft.Maps.TestDataGenerator.getLocations(1000, map.getBounds());

        //Load the HeatMap module.
        Microsoft.Maps.loadModule('Microsoft.Maps.HeatMap', function () {
            var heatmap = new Microsoft.Maps.HeatMapLayer(locs, {
                intensity: 0.65,
                radius: 100000,
                unit: 'meters', 
                colorGradient: {
                    '0': 'Black',
                    '0.4': 'Purple',
                    '0.6': 'Red',
                    '0.8': 'Yellow',
                    '1': 'White'
                }
            });
            map.layers.insert(heatmap);
        });
    }
    </script>
    
</head>
<body>
    <div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;background-color:gray"></div>

    <script>
        // Dynamic load the Bing Maps Key and Script
        // Get your own Bing Maps key at https://www.microsoft.com/maps
        (async () => {
            let script = document.createElement("script");
            let bingKey = await fetch("https://samples.azuremaps.com/api/GetBingMapsKey").then(r => r.text()).then(key => { return key });
            script.setAttribute("src", `https://www.bing.com/api/maps/mapcontrol?callback=GetMap&key=${bingKey}`);
            document.body.appendChild(script);
        })();
    </script>
</body>
</html>