8.7.6.1 IfcCorrectLocalPlacement

8.7.6.1.1 Semantic definition

The function checks that a relative placement (i.e. relative to another local placement, and not grid placement) of a 3D local placement has to be relative to a 3D parent placement (and not to a 2D parent placement).

HISTORY: New function in Release IFC2x Edition 2.

8.7.6.1.2 Formal representation

FUNCTION IfcCorrectLocalPlacement
  (AxisPlacement:IfcAxis2Placement; 
   RelPlacement : IfcObjectPlacement):LOGICAL;
 
  IF (EXISTS(RelPlacement)) THEN
    IF ('IFC4X3_DEV_738df036.IFCGRIDPLACEMENT' IN TYPEOF(RelPlacement)) THEN
      RETURN(?);
    END_IF;
    IF ('IFC4X3_DEV_738df036.IFCLOCALPLACEMENT' IN TYPEOF(RelPlacement)) THEN
      IF ('IFC4X3_DEV_738df036.IFCAXIS2PLACEMENT2D' IN TYPEOF(AxisPlacement)) THEN
        RETURN(TRUE);
      END_IF;
      IF ('IFC4X3_DEV_738df036.IFCAXIS2PLACEMENT3D' IN TYPEOF(AxisPlacement)) THEN
        IF (RelPlacement\IfcLocalPlacement.RelativePlacement.Dim = 3) THEN
          RETURN(TRUE);
        ELSE
          RETURN(FALSE);
        END_IF;
      END_IF;
    END_IF;
  ELSE
    RETURN(TRUE);  
  END_IF;
  RETURN(?);
 
END_FUNCTION;

8.7.6.1.3 References

• IfcLocalPlacement