src/OBJECT/GEOM_OCCReader.h

   1 //  Copyright (C) 2007-2008  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 //  GEOM OBJECT : interactive object for Geometry entities visualization
  23 //  File   : GEOM_OCCReader.h
  24 //  Author : Christophe ATTANASIO
  25 //  Module : GEOM
  26 //  $Header$
  27 //
  28 /*!
  29   \class GEOM_OCCReader GEOM_OCCReader.h
  30   \brief This class allow to display a OpenCASCADE CAD model in a VTK viewer.
  31 */
  32
  33 #ifndef GEOM_OCCREADER_H
  34 #define GEOM_OCCREADER_H
  35
  36 #include "GEOM_OBJECT_defs.hxx"
  37
  38 #include <vtkPolyDataSource.h>
  39
  40 class vtkPoints;
  41 class vtkCellArray;
  42
  43 // OpenCASCADE
  44 #include <TopoDS_Shape.hxx>
  45 #include <TopoDS.hxx>
  46 #include <Poly_Polygon3D.hxx>
  47 #include <Poly_PolygonOnTriangulation.hxx>
  48 #include <GeomAbs_IsoType.hxx>
  49 #include <BRepAdaptor_Surface.hxx>
  50
  51 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  52
  53   // methods
  54
  55  public:
  56
  57   static GEOM_OCCReader* New();
  58
  59   const TopoDS_Shape& getTopo();
  60
  61   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  62
  63   int  getDisplayMode();
  64   void setDisplayMode(int);
  65
  66   void setForceUpdate(Standard_Boolean bol);
  67
  68  protected:
  69
  70   GEOM_OCCReader();
  71   ~GEOM_OCCReader();
  72   void Execute();
  73
  74   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  75   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  76
  77   void TransferFaceSData(const TopoDS_Face& aFace,
  78                          vtkPoints* Pts,
  79                          vtkCellArray* Cells);
  80
  81   void TransferFaceWData(const TopoDS_Face& aFace,
  82                          vtkPoints* Pts,
  83                          vtkCellArray* Cells);
  84
  85   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  86                          vtkPoints* Pts,
  87                          vtkCellArray* Cells);
  88
  89   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  90                          vtkPoints* Pts,
  91                          vtkCellArray* Cells);
  92
  93   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  94                            vtkPoints* Pts,
  95                            vtkCellArray* Cells);
  96
  97   void createISO(const TopoDS_Face &,
  98                  double, int,
  99                  vtkPoints* Pts,
 100                  vtkCellArray* Cells);
 101
 102   void DrawIso(GeomAbs_IsoType aType,
 103                Standard_Real PParm,
 104                Standard_Real p1,
 105                Standard_Real p2,
 106                vtkPoints* Pts,
 107                vtkCellArray* Cells,
 108                Standard_Integer& startidx);
 109
 110   void MoveTo(gp_Pnt P,
 111               vtkPoints* Pts);
 112
 113   void DrawTo(gp_Pnt P,
 114               vtkPoints* Pts,
 115               vtkCellArray* Cells);
 116
 117   void PlotIso(BRepAdaptor_Surface& S,
 118                GeomAbs_IsoType T,
 119                Standard_Real& U,
 120                Standard_Real& V,
 121                Standard_Real Step,
 122                Standard_Boolean& halt,
 123                vtkPoints* Pts,
 124                vtkCellArray* Cells);
 125
 126   // fields
 127
 128  private:
 129
 130   Standard_Boolean       forced;
 131   int                    discretiso;
 132   int                    amode;
 133   int                    nbisos;
 134   TopoDS_Shape           myShape;
 135   bool                   myIsVector;
 136
 137 };
 138
 139 #endif //GEOM_OCCREADER_H