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20252453-T-424 项目

8.9.6.16 IfcOrthogonalComplement(正交补)

8.9.6.16.1 语义定义(Semantic definition)

8.9.6.16.2 形式化表示(Formal representation)

FUNCTION IfcOrthogonalComplement
  (Vec : IfcDirection) 
    : IfcDirection;
LOCAL
  Result : IfcDirection ;
END_LOCAL;
  IF NOT EXISTS (Vec) OR (Vec.Dim <> 2) THEN
    RETURN(?);
  ELSE
    Result := IfcRepresentationItem() || IfcGeometricRepresentationItem () || IfcDirection([-Vec.DirectionRatios[2], Vec.DirectionRatios[1]]);
    RETURN(Result);
  END_IF;

END_FUNCTION;

8.9.6.16.3 参考(References)