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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
  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 // VTK
  38 #include "VTKViewer_Common.h"
  39
  40 // OpenCASCADE
  41 #include <TopoDS_Shape.hxx>
  42 #include <TopoDS.hxx>
  43 #include <Poly_Polygon3D.hxx>
  44 #include <Poly_PolygonOnTriangulation.hxx>
  45 #include <GeomAbs_IsoType.hxx>
  46 #include <BRepAdaptor_Surface.hxx>
  47
  48 #ifdef _WIN_32
  49 #define VTKOCC_EXPORT __declspec (dllexport)
  50 #else
  51 #define VTKOCC_EXPORT
  52 #endif
  53 class VTKOCC_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  54
  55   // methods
  56
  57  public:
  58
  59   static GEOM_OCCReader* New();
  60
  61   const TopoDS_Shape& getTopo();
  62
  63   void setTopo(const TopoDS_Shape& ashape);
  64
  65   int  getDisplayMode();
  66   void setDisplayMode(int);
  67
  68   void setForceUpdate(Standard_Boolean bol);
  69
  70  protected:
  71
  72   GEOM_OCCReader();
  73   ~GEOM_OCCReader();
  74   void Execute();
  75
  76   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  77   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  78
  79   void TransferFaceSData(const TopoDS_Face& aFace,
  80                          vtkPoints* Pts,
  81                          vtkCellArray* Cells);
  82
  83   void TransferFaceWData(const TopoDS_Face& aFace,
  84                          vtkPoints* Pts,
  85                          vtkCellArray* Cells);
  86
  87   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  88                          vtkPoints* Pts,
  89                          vtkCellArray* Cells);
  90
  91   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  92                          vtkPoints* Pts,
  93                          vtkCellArray* Cells);
  94
  95   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  96                            vtkPoints* Pts,
  97                            vtkCellArray* Cells);
  98
  99   void createISO(const TopoDS_Face &,
 100                  double, int,
 101                  vtkPoints* Pts,
 102                  vtkCellArray* Cells);
 103
 104   void DrawIso(GeomAbs_IsoType aType,
 105                Standard_Real PParm,
 106                Standard_Real p1,
 107                Standard_Real p2,
 108                vtkPoints* Pts,
 109                vtkCellArray* Cells,
 110                Standard_Integer& startidx);
 111
 112   void MoveTo(gp_Pnt P,
 113               vtkPoints* Pts);
 114
 115   void DrawTo(gp_Pnt P,
 116               vtkPoints* Pts,
 117               vtkCellArray* Cells);
 118
 119   void PlotIso(BRepAdaptor_Surface& S,
 120                GeomAbs_IsoType T,
 121                Standard_Real& U,
 122                Standard_Real& V,
 123                Standard_Real Step,
 124                Standard_Boolean& halt,
 125                vtkPoints* Pts,
 126                vtkCellArray* Cells);
 127
 128   // fields
 129
 130  private:
 131
 132   Standard_Boolean       forced;
 133   int                    discretiso;
 134   int                    amode;
 135   int                    nbisos;
 136   TopoDS_Shape           myShape;
 137
 138 };
 139
 140 #endif //GEOM_OCCREADER_H