The IfcAxis2Placement allows for the choice of various placement entities.
NOTE Definition according to ISO/CD 10303-42:1992
This select type represents the placing of mutually perpendicular axes in two-dimensional or in threedimensional Cartesian space.
This select type enables entities requiring axis placement information to reference the axes without specifying the space dimensionality.
NOTE Type adapted from axis2_placement defined in ISO 10303-42.
HISTORY New type in IFC1.5
TYPE IfcAxis2Placement = SELECT (IfcAxis2Placement2D ,IfcAxis2Placement3D); END_TYPE;