HeatMap

new Cesium.HeatMap(options)

Heat map category. Through this class, you can customize various properties of the heat map, and realize multiple functions such as adding points on the heat map in real time.
Name Type Description
options Object The parameters have the following properties:
Name Type Description
quality Quality optional The quality of the heat map, the default value is MEDIUM
intensityRange Cartesian2 optional Heat map intensity value range, default 0 to 1
bounds bounds optional Geographic range of heat map data
Example:
var heatMap = new HeatMap({
quality: Quality.HIGH,
intensityRange: new Cesium.Cartesian2(0.2,0.8),
});

Members

bounds : BoundingRectangle

Get or set the geographic boundary of the heat map data.

maxPerFrameDrawCount : Number

Get or set the maximum number of points drawn per frame.

readonlytexture : Texture

Get the texture of the heat map.

Methods

addPoint(x, y, intensity, size)

Add points.
Name Type Description
x Number The x coordinate of the point
y Number The y coordinate of the point
intensity Number Point intensity value
size Number Point size

setData(data)

Add point sets in batches.
Name Type Description
data Array Point set data to be added
Example:
var heatMap = new HeatMap();
heatMap.setData();
scene.primitives.add(heatMap);