# ViewshedAnalysis

#### new Cesium.ViewshedAnalysis()
MapGIS/Analysis/ViewshedAnalysis.js 50

可视域分析

### Members

#### heading : Number
MapGIS/Analysis/ViewshedAnalysis.js 851

方位角

#### horizontAngle : Number
MapGIS/Analysis/ViewshedAnalysis.js 821

水平夹角

#### pitch : Number
MapGIS/Analysis/ViewshedAnalysis.js 869

俯仰角

#### targetPosition : Cartesian3
MapGIS/Analysis/ViewshedAnalysis.js 769

目标点

#### unVisibleColor : Color
MapGIS/Analysis/ViewshedAnalysis.js 901

不可视区域的颜色

#### verticalAngle : Number
MapGIS/Analysis/ViewshedAnalysis.js 836

垂直夹角

#### viewPosition : Cartesian3
MapGIS/Analysis/ViewshedAnalysis.js 756

视点

#### viewRadius : Number
MapGIS/Analysis/ViewshedAnalysis.js 792

可视半径

#### visibleColor : Color
MapGIS/Analysis/ViewshedAnalysis.js 887

可视区域的颜色