src/OBJECT/GEOM_OCCReader.h

   1 // Copyright (C) 2007-2012  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 //
  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 <GeomAbs_IsoType.hxx>
  47 #include <BRepAdaptor_Surface.hxx>
  48
  49 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  50
  51   // methods
  52
  53  public:
  54
  55   static GEOM_OCCReader* New();
  56
  57   const TopoDS_Shape& getTopo();
  58
  59   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  60
  61   int  getDisplayMode();
  62   void setDisplayMode(int);
  63
  64   void setForceUpdate(Standard_Boolean bol);
  65
  66  protected:
  67
  68   GEOM_OCCReader();
  69   ~GEOM_OCCReader();
  70   void Execute();
  71
  72   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  73   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  74
  75   void TransferFaceSData(const TopoDS_Face& aFace,
  76                          vtkPoints* Pts,
  77                          vtkCellArray* Cells);
  78
  79   void TransferFaceWData(const TopoDS_Face& aFace,
  80                          vtkPoints* Pts,
  81                          vtkCellArray* Cells);
  82
  83   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  84                          vtkPoints* Pts,
  85                          vtkCellArray* Cells);
  86
  87   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  88                          vtkPoints* Pts,
  89                          vtkCellArray* Cells);
  90
  91   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  92                            vtkPoints* Pts,
  93                            vtkCellArray* Cells);
  94
  95   void createISO(const TopoDS_Face &,
  96                  double, int,
  97                  vtkPoints* Pts,
  98                  vtkCellArray* Cells);
  99
 100   void DrawIso(GeomAbs_IsoType aType,
 101                Standard_Real PParm,
 102                Standard_Real p1,
 103                Standard_Real p2,
 104                vtkPoints* Pts,
 105                vtkCellArray* Cells,
 106                Standard_Integer& startidx);
 107
 108   void MoveTo(gp_Pnt P,
 109               vtkPoints* Pts);
 110
 111   void DrawTo(gp_Pnt P,
 112               vtkPoints* Pts,
 113               vtkCellArray* Cells);
 114
 115   void PlotIso(BRepAdaptor_Surface& S,
 116                GeomAbs_IsoType T,
 117                Standard_Real& U,
 118                Standard_Real& V,
 119                Standard_Real Step,
 120                Standard_Boolean& halt,
 121                vtkPoints* Pts,
 122                vtkCellArray* Cells);
 123
 124   // fields
 125
 126  private:
 127
 128   Standard_Boolean       forced;
 129   int                    discretiso;
 130   int                    amode;
 131   int                    nbisos;
 132   TopoDS_Shape           myShape;
 133   bool                   myIsVector;
 134
 135 };
 136
 137 #endif //GEOM_OCCREADER_H