8.8.6.1 IfcPointListDim
8.8.6.1.1 Semantic definition
This function determines the dimensionality of a cartesian point list.
8.8.6.1.2 Formal representation
FUNCTION IfcPointListDim
(PointList : IfcCartesianPointList)
           : IfcDimensionCount;
  IF ('IFC4X3_ADD2.IFCCARTESIANPOINTLIST2D' IN TYPEOF(PointList))
    THEN RETURN(2);
  END_IF;     
  IF ('IFC4X3_ADD2.IFCCARTESIANPOINTLIST3D' IN TYPEOF(PointList))
    THEN RETURN(3);
  END_IF;     
  RETURN (?);
END_FUNCTION;