NJ API for Cesium GeoHeatMapEffectLayer

Example:

//构造本地geojson数据

	var heatMapEffectLayer = new Cesium.GeoHeatMapEffectLayer({
		effectType: "HeatMap3D",
		valueMapField: '统计数',
		heatmap3dOptions: {
			gradient: { //渐变颜色描述
				0.25: "rgb(0,0,225)",
				0.55: "rgb(0,225,0)",
				0.85: "rgb(255,225,0)",
				1.0: "rgb(255,0,0)"
			},
			radius: 20, //每个数据点将具有的半径
			maxOpacity: 0.8, //热力图中最高值的最大不透明度。（如果设置了不透明度，将被覆盖）
			minOpacity: 0.1, //热力图中最低值的最小不透明度（如果设置了不透明度，将被覆盖）
			blur: 0.85, //值越大，渐变越平滑,外圆占比越大。
			height: 1000, //三维热力图元最下端与球面的距离
			extrudedHeight: 50000, //三维热力图元最上端与球面的距离
			granularity: 8.726646259971648e-7, //该值决定了图元顶点的数量。值越小，顶点数量越多，则渲染越平滑，相应地帧数会降低。反之，值越大，顶点数量越少，则渲染越不平滑，相应地帧数也会上升。
		}
	});

	//添加到地图/地球上
	viewer.effectLayers.add(heatMapEffectLayer);

	// heatMapEffectLayer.setData(ztb_geojson.features);
	heatMapEffectLayer.setData([{
		"type": "Feature",
		"geometry": {
			"type": "Point",
			"coordinates": [116.41102505283855, 39.913896746674816]
		},
		"properties": {
			"县": "东城区",
			"统计数": "2",
			"RN": "1"
		}
	}, {
		"type": "Feature",
		"geometry": {
			"type": "Point",
			"coordinates": [125.26612659791823, 43.681044366244265]
		},
		"properties": {
			"县": "朝阳区",
			"统计数": "4",
			"RN": "2"
		}
	}, {
		"type": "Feature",
		"geometry": {
			"type": "Point",
			"coordinates": [115.24119162138823, 39.31003069890482]
		},
		"properties": {
			"县": "易县",
			"统计数": "1",
			"RN": "77"
		}
	}]);

	viewer.on('click', function(e) {
		if (e.originalLayer === heatMapEffectLayer) {
			// debugger;
			let {
				features
			} = e;
			alert("热力图数据数量:" + features.length);
		}
	});

//三维热力图从服务加载数据示例：

//wfs服务相关信息
var wfsService = {
		url: "http://192.168.100.231:8889/zjeffecttest/wfs",
		featureType: "effectPoint"
};

//使用数据源数据	
var dataSource = new Cesium.GeoWFSDataSource({
	  url: wfsService.url,
	  featureType: wfsService.featureType,
});

var heatMapEffectLayer = new Cesium.GeoHeatMapEffectLayer({
	  dataSource: dataSource,
	  effectTypeMapField: 'effectType', //特效类型映射要素字段名
	  valueMapField: 'length',
	  heatmap3dOptions: {
		gradient: { //渐变颜色描述
			0.25: "rgb(0,0,225)",
			0.55: "rgb(0,225,0)",
			0.85: "rgb(255,225,0)",
			1.0: "rgb(255,0,0)"
		},
		radius: 60,//每个数据点将具有的半径
		maxOpacity: 0.8, //热力图中最高值的最大不透明度。（如果设置了不透明度，将被覆盖）
		minOpacity: 0.1, //热力图中最低值的最小不透明度（如果设置了不透明度，将被覆盖）
		blur: 0.85, //值越大，渐变越平滑,外圆占比越大。
		height: 30, //三维热力图元最下端与球面的距离
		extrudedHeight: 60, //三维热力图元最上端与球面的距离
		granularity: 8.726646259971648e-8,//该值决定了图元顶点的数量。值越小，顶点数量越多，则渲染越平滑，相应地帧数会降低。反之，值越大，顶点数量越少，则渲染越不平滑，相应地帧数也会上升。
					
	 }
});

//添加到地图/地球上
viewer.effectLayers.add(heatMapEffectLayer);

//数据源加载数据
dataSource.load(function(){
	 
	 let dest = Cesium.Cartesian3.fromDegrees(121.4986249488635,31.21638927817536,1000);
	 //
	 viewer.camera.setView({
	 	destination: dest,
	 	orientation: {
	 		heading: 6.283185307179582,
	 		pitch: -1.5692226099725621,
	 		roll: 0
	 	}
	 });
});	

Demo:

• 热力图效果图层