Id of the work plane which may determine the orientation of the load.
Namespace: Autodesk.Revit.DB.StructureAssembly: RevitAPI (in RevitAPI.dll) Version: 21.0.0.0 (21.1.1.109)
Since: 2015
Syntax
Remarks
The load might be oriented to be perpendicular to this work plane. Determine how load is oriented by checking OrientTo.