src/TopoDSToStep/TopoDSToStep_MakeFacetedBrepAndBrepWithVoids.cxx

   1 // File:        TopoDSToStep_MakeFacetedBrepAndBrepWithVoids.cxx
   2 // Created:     Fri Jul 23 17:48:46 1993
   3 // Author:      Martine LANGLOIS
   4 //              <mla@mastox>
   5
   6
   7 #include <TopoDSToStep_MakeFacetedBrepAndBrepWithVoids.ixx>
   8 #include <TopoDSToStep.hxx>
   9 #include <TopoDSToStep_Builder.hxx>
  10 #include <TopoDSToStep_Tool.hxx>
  11 #include <MoniTool_DataMapOfShapeTransient.hxx>
  12 #include <StepShape_TopologicalRepresentationItem.hxx>
  13 #include <StepShape_ClosedShell.hxx>
  14 #include <StepShape_OrientedClosedShell.hxx>
  15 #include <StepShape_HArray1OfOrientedClosedShell.hxx>
  16 #include <TopoDS_Iterator.hxx>
  17 #include <TopoDS_Shell.hxx>
  18 #include <TopoDS.hxx>
  19 #include <TColStd_SequenceOfTransient.hxx>
  20 #include <BRepTools.hxx>
  21 #include <StdFail_NotDone.hxx>
  22 #include <Transfer_FinderProcess.hxx>
  23 #include <TransferBRep_ShapeMapper.hxx>
  24 #include <TCollection_HAsciiString.hxx>
  25
  26 //=============================================================================
  27 // Create a FacetedBrepAndBrepWithVoids of StepShape from a Solid of TopoDS
  28 // containing more than one closed shell
  29 //=============================================================================
  30
  31 TopoDSToStep_MakeFacetedBrepAndBrepWithVoids::
  32   TopoDSToStep_MakeFacetedBrepAndBrepWithVoids(const TopoDS_Solid& aSolid,
  33                                     const Handle(Transfer_FinderProcess)& FP)
  34 {
  35   done = Standard_False;
  36   TopoDS_Iterator              It;
  37   MoniTool_DataMapOfShapeTransient   aMap;
  38   TColStd_SequenceOfTransient  S;
  39   TopoDS_Shell                 aOutShell;
  40
  41   Handle(StepShape_TopologicalRepresentationItem) aItem;
  42   Handle(StepShape_ClosedShell)                   aOuter, aCShell;
  43   Handle(StepShape_OrientedClosedShell)           aOCShell;
  44   Handle(StepShape_HArray1OfOrientedClosedShell)  aVoids;
  45
  46   aOutShell = BRepTools::OuterShell(aSolid);
  47
  48   TopoDSToStep_Builder StepB;
  49   TopoDSToStep_Tool    aTool;
  50
  51   if (!aOutShell.IsNull()) {
  52     It.Initialize(aSolid);
  53     for ( ; It.More(); It.Next() ) {
  54       if (It.Value().ShapeType() == TopAbs_SHELL) {
  55         TopoDS_Shell CurrentShell = TopoDS::Shell(It.Value());
  56         if (It.Value().Closed()) {
  57
  58           aTool.Init(aMap, Standard_False);
  59           StepB.Init(CurrentShell, aTool, FP);
  60           TopoDSToStep::AddResult ( FP, aTool );
  61
  62           if (StepB.IsDone()) {
  63             aCShell = Handle(StepShape_ClosedShell)::DownCast(StepB.Value());
  64             if ( aOutShell.IsEqual(It.Value()) )
  65               aOuter = aCShell;
  66             else
  67               S.Append(aCShell);
  68           }
  69           else {
  70             Handle(TransferBRep_ShapeMapper) errShape =
  71               new TransferBRep_ShapeMapper(CurrentShell);
  72             FP->AddWarning(errShape," Shell from Solid not mapped to FacetedBrepAndBrepWithVoids");
  73           }
  74         }
  75         else {
  76           done = Standard_False;
  77           Handle(TransferBRep_ShapeMapper) errShape =
  78             new TransferBRep_ShapeMapper(CurrentShell);
  79           FP->AddWarning(errShape," Shell from Solid not closed; not mapped to FacetedBrepAndBrepWithVoids");
  80         }
  81       }
  82     }
  83   }
  84   Standard_Integer N = S.Length();
  85   if ( N>=1 ) {
  86     aVoids = new StepShape_HArray1OfOrientedClosedShell(1,N);
  87     Handle(TCollection_HAsciiString) aName =
  88       new TCollection_HAsciiString("");
  89     for ( Standard_Integer i=1; i<=N; i++ ) {
  90       aOCShell = new StepShape_OrientedClosedShell();
  91       aOCShell->Init(aName, Handle(StepShape_ClosedShell)::DownCast(S.Value(i)),
  92                      Standard_True);
  93       aVoids->SetValue(i, aOCShell);
  94     }
  95     theFacetedBrepAndBrepWithVoids =
  96       new StepShape_FacetedBrepAndBrepWithVoids();
  97     theFacetedBrepAndBrepWithVoids->Init(aName, aOuter, aVoids);
  98     done = Standard_True;
  99   }
 100   else {
 101     done = Standard_False;
 102     Handle(TransferBRep_ShapeMapper) errShape =
 103       new TransferBRep_ShapeMapper(aSolid);
 104     FP->AddWarning(errShape," Solid contains no Shell to be mapped to FacetedBrepAndBrepWithVoids");
 105   }
 106 }
 107
 108 //=============================================================================
 109 // renvoi des valeurs
 110 //=============================================================================
 111
 112 const Handle(StepShape_FacetedBrepAndBrepWithVoids) &
 113       TopoDSToStep_MakeFacetedBrepAndBrepWithVoids::Value() const
 114 {
 115   StdFail_NotDone_Raise_if(!done,"");
 116   return theFacetedBrepAndBrepWithVoids;
 117 }