Definition from IAI: Abstract supertype for the special types defining the object coordinate system. The IfcObjectPlacement has to be provided for each product that has a shape representation.
The object placement can be given:
In any case the object placement has to unambiguously define the object coordinate system as either two-dimensional axis placement (IfcAxis2Placement2D) or three-dimensional axis placement (IfcAxis2Placement3D). The axis placement may have to be calculated.
HISTORY New entity in IFC Release 2x.
The IfcObjectPlacement shall be used to provide a placement and an object coordinate system for a single instance of IfcProduct.
IFC2x Edition 3 CHANGE New inverse attribute.
|ReferencedByPlacements||:||Placements that are given relative to this placement of an object.|