8.9.2.2 IfcAxis2Placement
    8.9.2.2.1 Semantic definition
The IfcAxis2Placement allows for the choice of various placement entities.
    8.9.2.2.2 Type values
Table 8.9.2.2.A
    8.9.2.2.3 Formal representation
TYPE IfcAxis2Placement = SELECT
	(IfcAxis2Placement2D
	,IfcAxis2Placement3D);
END_TYPE;