Defined in File Ifc4.h
Definition from IAI: This enumeration defines the different types of planar elements an IfcPlateType object can fulfill:
CURTAIN_PANEL: A planar element within a curtain wall,often consisting of a frame with fixed glazing. SHEET: A planar, flat and thin element, comes usually as metal sheet, and is often used as an additonal part within an assembly. USERDEFINED: User-defined linear element. NOTDEFINED: Undefined linear element
HISTORY New Enumeration in Release IFC2x Edition 2. IFC2x Edition 3 CHANGE The additional identifiers CURTAIN_PANEL, SHEET have been added.