ClampMode() 绘制、量算的几何对象的风格 See: DrawHandler MeasureHandler Members staticconstantSuperMap3D.ClampMode.Ground : Number 贴地模式,枚举值1 staticconstantSuperMap3D.ClampMode.Raster : Number 栅格化模式,枚举值3 staticconstantSuperMap3D.ClampMode.S3mModel : Number 贴对象模式,枚举值2 staticconstantSuperMap3D.ClampMode.Space : Number 空间模式,枚举值0