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 <vtkPolyDataSource.h>
  38
  39 class vtkPoints;
  40 class vtkCellArray;
  41
  42 // OpenCASCADE
  43 #include <TopoDS_Shape.hxx>
  44 #include <TopoDS.hxx>
  45 #include <Poly_Polygon3D.hxx>
  46 #include <Poly_PolygonOnTriangulation.hxx>
  47 #include <GeomAbs_IsoType.hxx>
  48 #include <BRepAdaptor_Surface.hxx>
  49
  50 #ifdef _WIN_32
  51 #define VTKOCC_EXPORT __declspec (dllexport)
  52 #else
  53 #define VTKOCC_EXPORT
  54 #endif
  55
  56 class VTKOCC_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  57
  58   // methods
  59
  60  public:
  61
  62   static GEOM_OCCReader* New();
  63
  64   const TopoDS_Shape& getTopo();
  65
  66   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  67
  68   int  getDisplayMode();
  69   void setDisplayMode(int);
  70
  71   void setForceUpdate(Standard_Boolean bol);
  72
  73  protected:
  74
  75   GEOM_OCCReader();
  76   ~GEOM_OCCReader();
  77   void Execute();
  78
  79   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  80   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  81
  82   void TransferFaceSData(const TopoDS_Face& aFace,
  83                          vtkPoints* Pts,
  84                          vtkCellArray* Cells);
  85
  86   void TransferFaceWData(const TopoDS_Face& aFace,
  87                          vtkPoints* Pts,
  88                          vtkCellArray* Cells);
  89
  90   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  91                          vtkPoints* Pts,
  92                          vtkCellArray* Cells);
  93
  94   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  95                          vtkPoints* Pts,
  96                          vtkCellArray* Cells);
  97
  98   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  99                            vtkPoints* Pts,
 100                            vtkCellArray* Cells);
 101
 102   void createISO(const TopoDS_Face &,
 103                  double, int,
 104                  vtkPoints* Pts,
 105                  vtkCellArray* Cells);
 106
 107   void DrawIso(GeomAbs_IsoType aType,
 108                Standard_Real PParm,
 109                Standard_Real p1,
 110                Standard_Real p2,
 111                vtkPoints* Pts,
 112                vtkCellArray* Cells,
 113                Standard_Integer& startidx);
 114
 115   void MoveTo(gp_Pnt P,
 116               vtkPoints* Pts);
 117
 118   void DrawTo(gp_Pnt P,
 119               vtkPoints* Pts,
 120               vtkCellArray* Cells);
 121
 122   void PlotIso(BRepAdaptor_Surface& S,
 123                GeomAbs_IsoType T,
 124                Standard_Real& U,
 125                Standard_Real& V,
 126                Standard_Real Step,
 127                Standard_Boolean& halt,
 128                vtkPoints* Pts,
 129                vtkCellArray* Cells);
 130
 131   // fields
 132
 133  private:
 134
 135   Standard_Boolean       forced;
 136   int                    discretiso;
 137   int                    amode;
 138   int                    nbisos;
 139   TopoDS_Shape           myShape;
 140   bool                   myIsVector;
 141
 142 };
 143
 144 #endif //GEOM_OCCREADER_H