API Reference > Classes > Export Classes > TB_IFCEXPORT Namespace > TB_IFCEXPORT::IFCExtrusionBasis Namespace > Structs, Records, Enums > TB_IFCEXPORT::IFCExtrusionBasis::IFCExtrusionBasis Enumeration
TB_IFCEXPORT::IFCExtrusionBasis::IFCExtrusionBasis Enumeration
Syntax
C++
enum IFCExtrusionBasis { InvalidBasis = -1, BasisX = 0, BasisY = 1, BasisZ = 2, BasisUnknown = 3 };

TbIfcEnums.h

Members 
Description 
InvalidBasis = -1 
An invalid basis (typically indicating that the extrusion extraction was unsuccessful). 
BasisX = 0 
The X direction. 
BasisY = 1 
The Y direction. 
BasisZ = 2 
The Z direction. 
BasisUnknown = 3 
Unknown direction. 
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