src/OBJECT/GEOM_OCCReader.h

   1 //  GEOM OBJECT : interactive object for Geometry entities visualization
   2 //
   3 //  Copyright (C) 2003  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 //
  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 <Poly_Polygon3D.hxx>
  48 #include <Poly_PolygonOnTriangulation.hxx>
  49 #include <GeomAbs_IsoType.hxx>
  50 #include <BRepAdaptor_Surface.hxx>
  51
  52 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  53
  54   // methods
  55
  56  public:
  57
  58   static GEOM_OCCReader* New();
  59
  60   const TopoDS_Shape& getTopo();
  61
  62   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  63
  64   int  getDisplayMode();
  65   void setDisplayMode(int);
  66
  67   void setForceUpdate(Standard_Boolean bol);
  68
  69  protected:
  70
  71   GEOM_OCCReader();
  72   ~GEOM_OCCReader();
  73   void Execute();
  74
  75   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  76   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  77
  78   void TransferFaceSData(const TopoDS_Face& aFace,
  79                          vtkPoints* Pts,
  80                          vtkCellArray* Cells);
  81
  82   void TransferFaceWData(const TopoDS_Face& aFace,
  83                          vtkPoints* Pts,
  84                          vtkCellArray* Cells);
  85
  86   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  87                          vtkPoints* Pts,
  88                          vtkCellArray* Cells);
  89
  90   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  91                          vtkPoints* Pts,
  92                          vtkCellArray* Cells);
  93
  94   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  95                            vtkPoints* Pts,
  96                            vtkCellArray* Cells);
  97
  98   void createISO(const TopoDS_Face &,
  99                  double, int,
 100                  vtkPoints* Pts,
 101                  vtkCellArray* Cells);
 102
 103   void DrawIso(GeomAbs_IsoType aType,
 104                Standard_Real PParm,
 105                Standard_Real p1,
 106                Standard_Real p2,
 107                vtkPoints* Pts,
 108                vtkCellArray* Cells,
 109                Standard_Integer& startidx);
 110
 111   void MoveTo(gp_Pnt P,
 112               vtkPoints* Pts);
 113
 114   void DrawTo(gp_Pnt P,
 115               vtkPoints* Pts,
 116               vtkCellArray* Cells);
 117
 118   void PlotIso(BRepAdaptor_Surface& S,
 119                GeomAbs_IsoType T,
 120                Standard_Real& U,
 121                Standard_Real& V,
 122                Standard_Real Step,
 123                Standard_Boolean& halt,
 124                vtkPoints* Pts,
 125                vtkCellArray* Cells);
 126
 127   // fields
 128
 129  private:
 130
 131   Standard_Boolean       forced;
 132   int                    discretiso;
 133   int                    amode;
 134   int                    nbisos;
 135   TopoDS_Shape           myShape;
 136   bool                   myIsVector;
 137
 138 };
 139
 140 #endif //GEOM_OCCREADER_H