【GIS小案例】CesiumHeatmap热力图

1，CesiumHeatmap：
GitHub - danwild/CesiumHeatmap: A library to add heatmaps (using heatmap.js) to the Cesium framework.
2，效果图
3，示例代码
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <title>Hello World!</title>
    <script src="../Build/CesiumUnminified/Cesium.js"></script>
    <script src="CesiumHeatmap/CesiumHeatmap.js"></script>
    <style>
        @import url(../Build/Cesium/Widgets/widgets.css);
        html,
        body,
        #cesiumContainer {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
            overflow: hidden;
        }
    </style>
</head>

<body>
    <div id="credit"></div>
        <div id="cesiumContainer">
    </div>
    <script>
        var viewer = new Cesium.Viewer('cesiumContainer',{
            imageryProvider: new Cesium.SingleTileImageryProvider({
                url: '../img/worldimage.jpg'
            })
        });

        let bounds = {
            west: 147.13833844,
            east: 147.13856899,
            south: -41.43606916,
            north: -41.43582929
        };

        // init heatmap
        let heatMap = CesiumHeatmap.create(
            viewer, // your cesium viewer
            bounds, // bounds for heatmap layer
            {
                // heatmap.js options go here
                maxOpacity: 0.85,
                minOpacity: 0.16,
                "gradient": {
                    "0.05": "rgb(0,0,255)",
                    "0.25": "rgb(0 255 127)",
                    "0.45": "rgb(0,255,0)",
                    "0.65": "rgb(255 255 0)",
                    "0.85": "rgb(255 165 0)",
                    "1.00": "rgb(255,0,0)"
                },
                radius: 30,
            }
        );

        // random example data
        let data = [{"x":147.1383442264,"y":-41.4360048372,"value":76},{"x":147.1384363011,"y":-41.4360298848,"value":63},{"x":147.138368102,"y":-41.4358360603,"value":1},{"x":147.1385627739,"y":-41.4358799123,"value":21},{"x":147.1385138501,"y":-41.4359327669,"value":28},{"x":147.1385031219,"y":-41.4359730105,"value":41},{"x":147.1384127393,"y":-41.435928255,"value":75},{"x":147.1384551136,"y":-41.4359450132,"value":3},{"x":147.1384927196,"y":-41.4359158649,"value":45},{"x":147.1384938639,"y":-41.4358498311,"value":45},{"x":147.1385183299,"y":-41.4360213794,"value":93},{"x":147.1384007925,"y":-41.4359860133,"value":46},{"x":147.1383604844,"y":-41.4358298672,"value":54},{"x":147.13851025,"y":-41.4359098303,"value":39},{"x":147.1383874733,"y":-41.4358511035,"value":34},{"x":147.1384981796,"y":-41.4359355403,"value":81},{"x":147.1384504107,"y":-41.4360332348,"value":39},{"x":147.1385582664,"y":-41.4359788335,"value":20},{"x":147.1383967364,"y":-41.4360581999,"value":35},{"x":147.1383839615,"y":-41.436016316,"value":47},{"x":147.1384082712,"y":-41.4358423338,"value":36},{"x":147.1385092651,"y":-41.4358577623,"value":69},{"x":147.138360356,"y":-41.436046789,"value":90},{"x":147.138471893,"y":-41.4359184292,"value":88},{"x":147.1385605689,"y":-41.4360271359,"value":81},{"x":147.1383585714,"y":-41.4359362476,"value":32},{"x":147.1384939114,"y":-41.4358844253,"value":67},{"x":147.138466724,"y":-41.436019121,"value":17},{"x":147.1385504355,"y":-41.4360614056,"value":49},{"x":147.1383883832,"y":-41.4358733544,"value":82},{"x":147.1385670669,"y":-41.4359650236,"value":25},{"x":147.1383416534,"y":-41.4359310876,"value":82},{"x":147.138525285,"y":-41.4359394661,"value":66},{"x":147.1385487719,"y":-41.4360137656,"value":73},{"x":147.1385496029,"y":-41.4359187277,"value":73},{"x":147.1383989222,"y":-41.4358556562,"value":61},{"x":147.1385499424,"y":-41.4359149305,"value":67},{"x":147.138404523,"y":-41.4359563326,"value":90},{"x":147.1383883675,"y":-41.4359794855,"value":78},{"x":147.1383967187,"y":-41.435891185,"value":15},{"x":147.1384610005,"y":-41.4359044797,"value":15},{"x":147.1384688489,"y":-41.4360396127,"value":91},{"x":147.1384431875,"y":-41.4360684409,"value":8},{"x":147.1385411067,"y":-41.4360645847,"value":42},{"x":147.1385237178,"y":-41.4358843181,"value":31},{"x":147.1384406464,"y":-41.4360003831,"value":51},{"x":147.1384679169,"y":-41.4359950456,"value":96},{"x":147.1384194314,"y":-41.4358419739,"value":22},{"x":147.1385049792,"y":-41.4359574813,"value":44},{"x":147.1384097378,"y":-41.4358598672,"value":82},{"x":147.1384993219,"y":-41.4360352975,"value":84},{"x":147.1383640499,"y":-41.4359839518,"value":81}];
        let valueMin = 0;
        let valueMax = 100;

        // add data to heatmap
        heatMap.setWGS84Data(valueMin, valueMax, data);

        viewer.camera.setView({
            destination: Cesium.Rectangle.fromDegrees(bounds.west,bounds.south,bounds.east,bounds.north)
        });

    </script>
</body>

</html>
【GIS小案例】CesiumHeatmap热力图

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