src/OBJECT/GEOM_OCCReader.h

   1 // Copyright (C) 2007-2011  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 //  GEOM OBJECT : interactive object for Geometry entities visualization
  24 //  File   : GEOM_OCCReader.h
  25 //  Author : Christophe ATTANASIO
  26 //  Module : GEOM
  27 //  $Header$
  28 //
  29 /*!
  30   \class GEOM_OCCReader GEOM_OCCReader.h
  31   \brief This class allow to display a OpenCASCADE CAD model in a VTK viewer.
  32 */
  33
  34 #ifndef GEOM_OCCREADER_H
  35 #define GEOM_OCCREADER_H
  36
  37 #include "GEOM_OBJECT_defs.hxx"
  38
  39 #include <vtkPolyDataSource.h>
  40
  41 class vtkPoints;
  42 class vtkCellArray;
  43
  44 // OpenCASCADE
  45 #include <TopoDS_Shape.hxx>
  46 #include <TopoDS.hxx>
  47 #include <GeomAbs_IsoType.hxx>
  48 #include <BRepAdaptor_Surface.hxx>
  49
  50 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  51
  52   // methods
  53
  54  public:
  55
  56   static GEOM_OCCReader* New();
  57
  58   const TopoDS_Shape& getTopo();
  59
  60   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  61
  62   int  getDisplayMode();
  63   void setDisplayMode(int);
  64
  65   void setForceUpdate(Standard_Boolean bol);
  66
  67  protected:
  68
  69   GEOM_OCCReader();
  70   ~GEOM_OCCReader();
  71   void Execute();
  72
  73   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  74   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  75
  76   void TransferFaceSData(const TopoDS_Face& aFace,
  77                          vtkPoints* Pts,
  78                          vtkCellArray* Cells);
  79
  80   void TransferFaceWData(const TopoDS_Face& aFace,
  81                          vtkPoints* Pts,
  82                          vtkCellArray* Cells);
  83
  84   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  85                          vtkPoints* Pts,
  86                          vtkCellArray* Cells);
  87
  88   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  89                          vtkPoints* Pts,
  90                          vtkCellArray* Cells);
  91
  92   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  93                            vtkPoints* Pts,
  94                            vtkCellArray* Cells);
  95
  96   void createISO(const TopoDS_Face &,
  97                  double, int,
  98                  vtkPoints* Pts,
  99                  vtkCellArray* Cells);
 100
 101   void DrawIso(GeomAbs_IsoType aType,
 102                Standard_Real PParm,
 103                Standard_Real p1,
 104                Standard_Real p2,
 105                vtkPoints* Pts,
 106                vtkCellArray* Cells,
 107                Standard_Integer& startidx);
 108
 109   void MoveTo(gp_Pnt P,
 110               vtkPoints* Pts);
 111
 112   void DrawTo(gp_Pnt P,
 113               vtkPoints* Pts,
 114               vtkCellArray* Cells);
 115
 116   void PlotIso(BRepAdaptor_Surface& S,
 117                GeomAbs_IsoType T,
 118                Standard_Real& U,
 119                Standard_Real& V,
 120                Standard_Real Step,
 121                Standard_Boolean& halt,
 122                vtkPoints* Pts,
 123                vtkCellArray* Cells);
 124
 125   // fields
 126
 127  private:
 128
 129   Standard_Boolean       forced;
 130   int                    discretiso;
 131   int                    amode;
 132   int                    nbisos;
 133   TopoDS_Shape           myShape;
 134   bool                   myIsVector;
 135
 136 };
 137
 138 #endif //GEOM_OCCREADER_H