DrawMode() 绘制模式类。 See: DrawHandler Members staticconstantSuperMap3D.DrawMode.Box : Number 绘制盒子。 staticconstantSuperMap3D.DrawMode.Line : Number 绘制线。 staticconstantSuperMap3D.DrawMode.Marker : Number 绘制图标。 staticconstantSuperMap3D.DrawMode.Point : Number 绘制点。 staticconstantSuperMap3D.DrawMode.Polygon : Number 绘制面。