Constructor
new HeatmapPlugin()
Methods
create(maxEdge, radius, offset, gradient)
生成热力图
Parameters:
Name | Type | Default | Description |
---|---|---|---|
maxEdge |
Number | 300 | 热力图图片的最大边长,默认值300。maxEdge和边界无关 |
radius |
Number | 40 | 热点半径,最大值40 |
offset |
Object | 热力图位置偏移,默认[0,0,0] | |
gradient |
Object | null | 颜色过渡参数 ,默认值:{ 0.25: "rgb(0,0,255)", 0.55: "rgb(0,255,0)", 0.85: "yellow", 1.0: "rgb(255,0,0)" } |
setEnvelope(x1, y1, x2, y2)
设置边界
Parameters:
Name | Type | Description |
---|---|---|
x1 |
* | |
y1 |
* | |
x2 |
* | |
y2 |
* |
setSimplePoints(simplePoints)
设置样本点
Parameters:
Name | Type | Description |
---|---|---|
simplePoints |
* |