# HeightLimited

#### new Cesium.HeightLimited(viewer, options)
MapGIS/PostProcessingEffects/HeightLimited.js 51

限高分析

Name | Type | Description
--- | --- | ---
`viewer` | Viewer | 视图
`options` | Object | 包含以下属性的对象
Name | Type | Default | Description
--- | --- | --- | ---
`posArray` | Number |  | 执行限高分析边界，坐标为经纬度坐标，点个数大于2
`limitedColor` | Color | `Color.RED.withAlpha(0.7)` | optional 限高区域颜色
`polygonColor` | Color | `Color.WHITE.withAlpha(0.7)` | optional 限高区域辅助面颜色
`useOutLine` | Boolean | `true` | optional 限高区域辅助面外边线
`height` | Number | `10` | optional 限高高度
`blendTransparency` | Number | `0.8` | optional 限高颜色混合比例0-1

##### Example:

    var pnts = [
        new Cesium.Cartesian3(115.03481079096245, 27.007844388021834, 0.0),
        new Cesium.Cartesian3(115.03481079096245, 27.006646020977758, 0.0),
        new Cesium.Cartesian3(115.03610070479618, 27.006646020977758, 0.0),
        new Cesium.Cartesian3(115.03610070479618, 27.007844388021834, 0.0)
    ];

    var heightLimited = new Cesium.HeightLimited(viewer,{
        height: 0.0,
        limitedColor: new Cesium.Color(1, 0, 0, 0.5),
        polygonColor: Color.WHITE.withAlpha(0.7),
        blendTransparency: 0.8,
        posArray: pnts
    });
    // 添加限高
    heightLimited.add();
    // 移除限高
    heightLimited.remove();

### Members

#### height : Number
MapGIS/PostProcessingEffects/HeightLimited.js 94

辅助面高度

### Methods

#### add()
MapGIS/PostProcessingEffects/HeightLimited.js 185

执行限高分析

#### remove()
MapGIS/PostProcessingEffects/HeightLimited.js 198

移除限高分析