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DrawContext.GetClipPlanes

Method
Description:
Gets the clipping planes for the Revit view where rendering takes place. Clipping planes control the 3D extent of a view and can be set using Section Box in Revit.
Syntax
public static IList<ClipPlane> GetClipPlanes()
Exceptions
Exception Condition
InvalidOperationException This DrawContext is not available because Revit is not currently rendering. In general, this DrawContext must be used in the scope of the RenderScene() callback of IDirectContext3DServer.