8.9.6.3 IfcBuild2Axes
8.9.6.3.1 Semantic definition
8.9.6.3.2 Formal representation
FUNCTION IfcBuild2Axes (RefDirection : IfcDirection) : LIST [2:2] OF IfcDirection; LOCAL D : IfcDirection := NVL(IfcNormalise(RefDirection), IfcRepresentationItem() || IfcGeometricRepresentationItem () || IfcDirection([1.0,0.0])); END_LOCAL; RETURN([D, IfcOrthogonalComplement(D)]); END_FUNCTION;