OptionalDescriptionOptionalFrameOptionalGlobalExplicit GlobalId (22-char IFC GUID); generated when omitted.
OptionalNameOptionalObjectOptionalPartitioningIFC4 PartitioningType. Defaults to NOTDEFINED.
Sill-centre of the window, in storey-local coordinates.
OptionalPredefinedIFC4 PredefinedType. Defaults to NOTDEFINED.
OptionalTagOptionalUserFree-text label when PartitioningType === 'USERDEFINED'. Ignored otherwise.
Sash thickness along storey-local +Y. Defaults to 0.05 m.