src/OBJECT/GEOM_OCCReader.h

   1 // Copyright (C) 2007-2014  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, or (at your option) any later version.
  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 //
  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 <vtkAlgorithm.h>
  39
  40 class vtkPoints;
  41 class vtkCellArray;
  42 class GEOMUtils_Hatcher;
  43
  44 // OpenCASCADE
  45 #include <TopoDS_Edge.hxx>
  46 #include <TopoDS_Shape.hxx>
  47 #include <TopoDS_Vertex.hxx>
  48 #include <GeomAbs_IsoType.hxx>
  49 #include <BRepAdaptor_Surface.hxx>
  50
  51 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkAlgorithm {
  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
  73   virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  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                  int,
 100                  vtkPoints* Pts,
 101                  vtkCellArray* Cells);
 102
 103   void createIsos(const GEOMUtils_Hatcher &theHatcher,
 104                   const Standard_Boolean   IsUIso,
 105                         Standard_Integer  &pt_start_idx,
 106                         vtkPoints         *Pts,
 107                         vtkCellArray      *Cell);
 108
 109   void DrawIso(GeomAbs_IsoType aType,
 110                Standard_Real PParm,
 111                Standard_Real p1,
 112                Standard_Real p2,
 113                vtkPoints* Pts,
 114                vtkCellArray* Cells,
 115                Standard_Integer& startidx);
 116
 117   void MoveTo(gp_Pnt P,
 118               vtkPoints* Pts);
 119
 120   void DrawTo(gp_Pnt P,
 121               vtkPoints* Pts,
 122               vtkCellArray* Cells);
 123
 124   void PlotIso(BRepAdaptor_Surface& S,
 125                GeomAbs_IsoType T,
 126                Standard_Real& U,
 127                Standard_Real& V,
 128                Standard_Real Step,
 129                Standard_Boolean& halt,
 130                vtkPoints* Pts,
 131                vtkCellArray* Cells);
 132
 133   // fields
 134
 135  private:
 136
 137   Standard_Boolean       forced;
 138   int                    discretiso;
 139   int                    amode;
 140   int                    nbisos;
 141   TopoDS_Shape           myShape;
 142   bool                   myIsVector;
 143
 144 };
 145
 146 #endif //GEOM_OCCREADER_H