src/OBJECT/GEOM_OCCReader.h

   1 // Copyright (C) 2007-2021  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 namespace GEOMUtils
  43 {
  44   class Hatcher;
  45 }
  46
  47 // OpenCASCADE
  48 #include <TopoDS_Edge.hxx>
  49 #include <TopoDS_Shape.hxx>
  50 #include <TopoDS_Vertex.hxx>
  51 #include <GeomAbs_IsoType.hxx>
  52 #include <BRepAdaptor_Surface.hxx>
  53
  54 class GEOM_OBJECT_EXPORT GEOM_OCCReader : public vtkAlgorithm {
  55
  56   // methods
  57
  58  public:
  59
  60   static GEOM_OCCReader* New();
  61
  62   const TopoDS_Shape& getTopo();
  63
  64   void setTopo(const TopoDS_Shape& ashape, bool isVector = false);
  65
  66   int  getDisplayMode();
  67   void setDisplayMode(int);
  68
  69   void setForceUpdate(Standard_Boolean bol);
  70
  71  protected:
  72
  73   GEOM_OCCReader();
  74   ~GEOM_OCCReader();
  75
  76   virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  77
  78   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  79   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  80
  81   void TransferFaceSData(const TopoDS_Face& aFace,
  82                          vtkPoints* Pts,
  83                          vtkCellArray* Cells);
  84
  85   void TransferFaceWData(const TopoDS_Face& aFace,
  86                          vtkPoints* Pts,
  87                          vtkCellArray* Cells);
  88
  89   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  90                          vtkPoints* Pts,
  91                          vtkCellArray* Cells);
  92
  93   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  94                          vtkPoints* Pts,
  95                          vtkCellArray* Cells);
  96
  97   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  98                            vtkPoints* Pts,
  99                            vtkCellArray* Cells);
 100
 101   void createISO(const TopoDS_Face &,
 102                  int,
 103                  vtkPoints* Pts,
 104                  vtkCellArray* Cells);
 105
 106   void createIsos(const GEOMUtils::Hatcher &theHatcher,
 107                   const Standard_Boolean   IsUIso,
 108                   Standard_Integer  &pt_start_idx,
 109                   vtkPoints         *Pts,
 110                   vtkCellArray      *Cell);
 111
 112   void DrawIso(GeomAbs_IsoType aType,
 113                Standard_Real PParm,
 114                Standard_Real p1,
 115                Standard_Real p2,
 116                vtkPoints* Pts,
 117                vtkCellArray* Cells,
 118                Standard_Integer& startidx);
 119
 120   void MoveTo(gp_Pnt P,
 121               vtkPoints* Pts);
 122
 123   void DrawTo(gp_Pnt P,
 124               vtkPoints* Pts,
 125               vtkCellArray* Cells);
 126
 127   void PlotIso(BRepAdaptor_Surface& S,
 128                GeomAbs_IsoType T,
 129                Standard_Real& U,
 130                Standard_Real& V,
 131                Standard_Real Step,
 132                Standard_Boolean& halt,
 133                vtkPoints* Pts,
 134                vtkCellArray* Cells);
 135
 136   // fields
 137
 138  private:
 139
 140   Standard_Boolean       forced;
 141   int                    discretiso;
 142   int                    amode;
 143   int                    nbisos;
 144   TopoDS_Shape           myShape;
 145   bool                   myIsVector;
 146
 147 };
 148
 149 #endif //GEOM_OCCREADER_H