C++ BRep_Builder::MakeVertex方法代码示例

//=======================================================================
// function: CheckIntermediatePoint
// purpose:
//=======================================================================
Standard_Integer NMTTools_PaveFiller::CheckIntermediatePoint(const BOPTools_PaveBlock& aPB,
                                                             const TopoDS_Edge& aE2,
                                                             const Standard_Real aTolC)
{
  Standard_Real aT11, aT12, aTM, aTmp;
  Standard_Integer iVM;
  gp_Pnt aPM;
  BRep_Builder aBB;
  TopoDS_Vertex aVM;
  //
  // Vertex
  const BOPTools_Pave& aPave11=aPB.Pave1();
  aT11=aPave11.Param();
  //
  const BOPTools_Pave& aPave12=aPB.Pave2();
  aT12=aPave12.Param();
  //
  aTM=IntTools_Tools::IntermediatePoint (aT11, aT12);
  //
  const IntTools_Curve& aIC=aPB.Curve();
  aIC.D0(aTM, aPM);
  //
  aBB.MakeVertex (aVM, aPM, aTolC);
  //
  iVM=myContext->ComputeVE(aVM, aE2, aTmp);
  //
  return iVM;
}

SALOME_WNT_EXPORT
  TopoDS_Shape ImportIGES (const TCollection_AsciiString& theFileName,
                       const TCollection_AsciiString& theFormatName,
                       TCollection_AsciiString&       theError,
		               const TDF_Label&               theShapeLabel)
  {
    IGESControl_Reader aReader;
    TopoDS_Shape aResShape;
    Interface_Static::SetCVal("xstep.cascade.unit","M");
    try {
      IFSelect_ReturnStatus status = aReader.ReadFile(theFileName.ToCString());

      if (status == IFSelect_RetDone) {

        if( theFormatName == "IGES_UNIT" ) {
	  Handle(IGESData_IGESModel) aModel = 
	    Handle(IGESData_IGESModel)::DownCast(aReader.Model());
	  gp_Pnt P(1.0,0.0,0.0);
	  if(!aModel.IsNull()) {
	    Handle(TCollection_HAsciiString) aUnitName = 
	      aModel->GlobalSection().UnitName();
	    //cout<<"aUnitName = "<<aUnitName->ToCString()<<endl;
	    //cout<<"aUnitFlag = "<<aModel->GlobalSection().UnitFlag()<<endl;
	    if( aUnitName->String()=="MM" ) {
	      P = gp_Pnt(0.001,0.0,0.0);
	    }
	    else if( aUnitName->String()=="CM" ) {
	      P = gp_Pnt(0.01,0.0,0.0);
	    }
	  }
	  BRep_Builder B;
	  TopoDS_Vertex V;
	  B.MakeVertex(V,P,1.e-7);
	  aResShape = V;
	  return aResShape;
	}
	if( theFormatName == "IGES_SCALE" ) {
	  //cout<<"need re-scale a model"<<endl;
	  // set UnitFlag to 'meter'
	  Handle(IGESData_IGESModel) aModel = 
	    Handle(IGESData_IGESModel)::DownCast(aReader.Model());
	  if(!aModel.IsNull()) {
	    IGESData_GlobalSection aGS = aModel->GlobalSection();
	    aGS.SetUnitFlag(6);
	    aModel->SetGlobalSection(aGS);
	  }
	}

        MESSAGE("ImportIGES : all Geometry Transfer");
        //OCC 5.1.2 porting
        //     aReader.Clear();
        //     aReader.TransferRoots(false);
        aReader.ClearShapes();
        aReader.TransferRoots();

        MESSAGE("ImportIGES : count of shapes produced = " << aReader.NbShapes());
        aResShape = aReader.OneShape();

        // BEGIN: Store names of sub-shapes from file
        Handle(Interface_InterfaceModel) Model = aReader.WS()->Model();
        Handle(XSControl_TransferReader) TR = aReader.WS()->TransferReader();
        if (!TR.IsNull()) {
          Handle(Transfer_TransientProcess) TP = /*TransientProcess();*/TR->TransientProcess();
          Standard_Integer nb = Model->NbEntities();
          for (Standard_Integer i = 1; i <= nb; i++) {
            Handle(IGESData_IGESEntity) ent = Handle(IGESData_IGESEntity)::DownCast(Model->Value(i));
            if (ent.IsNull() || ! ent->HasName()) continue;

            // find target shape
            Handle(Transfer_Binder) binder = TP->Find(ent);
            if (binder.IsNull()) continue;
            TopoDS_Shape S = TransferBRep::ShapeResult(binder);
            if (S.IsNull()) continue;

            // create label and set shape
            TDF_Label L;
            TDF_TagSource aTag;
            L = aTag.NewChild(theShapeLabel);
            TNaming_Builder tnBuild (L);
            tnBuild.Generated(S);

            // set a name
            TCollection_AsciiString string = ent->NameValue()->String();
            string.LeftAdjust();
            string.RightAdjust();
            TCollection_ExtendedString str (string);
            TDataStd_Name::Set(L, str);
          }
        }
        // END: Store names
      } else {
//        switch (status) {
//        case IFSelect_RetVoid:
//          theError = "Nothing created or No data to process";
//          break;
//        case IFSelect_RetError:
//          theError = "Error in command or input data";
//          break;
//        case IFSelect_RetFail:
//          theError = "Execution was run, but has failed";
//.........这里部分代码省略.........