Method GetLocalPlacement

src/cpp/web-ifc/geometry/IfcGeometryLoader.cpp:3853–4198

  }

  glm::dmat4 IfcGeometryLoader::GetLocalPlacement(uint32_t expressID, glm::dvec3 vector) const
  {
    if (_cache.GetExpressIDToPlacement().contains(expressID))
    {
      return _cache.GetExpressIDToPlacement()[expressID];
    }
    else
    {
      spdlog::debug("[GetLocalPlacement({})]", expressID);
      auto lineType = _loader.GetLineType(expressID);
      switch (lineType)
      {
      case schema::IFCPOINTBYDISTANCEEXPRESSION:
      {
        // IfcPointByDistanceExpression : public IfcPoint
        //    IfcCurveMeasureSelect					DistanceAlong;
        //    IfcLengthMeasure						OffsetLateral;			//optional
        //    IfcLengthMeasure						OffsetVertical;			//optional
        //    IfcLengthMeasure						OffsetLongitudinal;		//optional
        //    IfcCurve								BasisCurve;

        _loader.MoveToArgumentOffset(expressID, 0);
        IfcCurve curve;
        double DistanceAlong = 0;
        double OffsetLateral = 0;
        double OffsetVertical = 0;
        double OffsetLongitudinal = 0;

        if (_loader.GetTokenType() != parsing::IfcTokenType::EMPTY)
        {
          _loader.StepBack();
          DistanceAlong = ReadLenghtMeasure();
        }

        _loader.MoveToArgumentOffset(expressID, 2);
        auto tokenTypeOffsetLateral = _loader.GetTokenType();
        if (tokenTypeOffsetLateral == parsing::LABEL)
        {
            OffsetLateral = ReadLenghtMeasure();
        }
        else if (tokenTypeOffsetLateral == parsing::REAL)
        {
            _loader.StepBack();
            OffsetLateral = _loader.GetDoubleArgument();
        }

        _loader.MoveToArgumentOffset(expressID, 3);
        auto tokenTypeOffsetVertical = _loader.GetTokenType();
        if (tokenTypeOffsetVertical == parsing::LABEL)
        {
            OffsetVertical = ReadLenghtMeasure();
        }
        else if (tokenTypeOffsetVertical == parsing::REAL)
        {
            _loader.StepBack();
            OffsetVertical = _loader.GetDoubleArgument();
        }