IFC 4.3.0.1 (IFC4X3) development

8.18.6.1 IfcConvertDirectionInto2D

8.18.6.1.1 Semantic definition

The function returns a two-dimensional direction, using the x/y ratios of a two or three-dimensional direction as input.

8.18.6.1.2 Formal representation

FUNCTION IfcConvertDirectionInto2D
    (Direction : IfcDirection)
    : IfcDirection;
 
  LOCAL
    Direction2D : IfcDirection := IfcRepresentationItem() || IfcGeometricRepresentationItem () || IfcDirection([0.,1.]);
  END_LOCAL;
  
  Direction2D.DirectionRatios[1] := Direction.DirectionRatios[1];
  Direction2D.DirectionRatios[2] := Direction.DirectionRatios[2];
  
  RETURN (Direction2D);

END_FUNCTION;

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