src/OBJECT/GEOM_OCCReader.h

   1 //  File      : GEOM_OCCReader.h
   2 //  Created   : Wed Feb 20 17:24:59 2002
   3 //  Author    : Christophe ATTANASIO
   4 //  Project   : SALOME
   5 //  Module    : GEOM
   6 //  Copyright : Open CASCADE 2002
   7 //  $Header$
   8
   9 /*!
  10   \class GEOM_OCCReader GEOM_OCCReader.h
  11   \brief This class allow to display a OpenCASCADE CAD model in a VTK viewer.
  12 */
  13
  14 #ifndef GEOM_OCCREADER_H
  15 #define GEOM_OCCREADER_H
  16
  17 // VTK
  18 #include <vtkPolyDataSource.h>
  19 #include <vtkPoints.h>
  20 #include <vtkCellArray.h>
  21
  22 // OpenCASCADE
  23 #include <TopoDS_Shape.hxx>
  24 #include <TopoDS.hxx>
  25 #include <Poly_Polygon3D.hxx>
  26 #include <Poly_PolygonOnTriangulation.hxx>
  27 #include <GeomAbs_IsoType.hxx>
  28 #include <BRepAdaptor_Surface.hxx>
  29
  30 #ifdef _WIN_32
  31 #define VTKOCC_EXPORT __declspec (dllexport)
  32 #else
  33 #define VTKOCC_EXPORT
  34 #endif
  35 class VTKOCC_EXPORT GEOM_OCCReader : public vtkPolyDataSource {
  36
  37   // methods
  38
  39  public:
  40
  41   static GEOM_OCCReader* New();
  42
  43   const TopoDS_Shape& getTopo();
  44
  45   void setTopo(const TopoDS_Shape& ashape);
  46
  47   int  getDisplayMode();
  48   void setDisplayMode(int);
  49
  50   void setForceUpdate(Standard_Boolean bol);
  51
  52  protected:
  53
  54   GEOM_OCCReader();
  55   ~GEOM_OCCReader();
  56   void Execute();
  57
  58   void ComputeShading(vtkPoints* Pts,vtkCellArray* Cells);
  59   void ComputeWireframe(vtkPoints* Pts,vtkCellArray* Cells);
  60
  61   void TransferFaceSData(const TopoDS_Face& aFace,
  62                          vtkPoints* Pts,
  63                          vtkCellArray* Cells);
  64
  65   void TransferFaceWData(const TopoDS_Face& aFace,
  66                          vtkPoints* Pts,
  67                          vtkCellArray* Cells);
  68
  69   void TransferEdgeSData(const TopoDS_Edge& aEdge,
  70                          vtkPoints* Pts,
  71                          vtkCellArray* Cells);
  72
  73   void TransferEdgeWData(const TopoDS_Edge& aEdge,
  74                          vtkPoints* Pts,
  75                          vtkCellArray* Cells);
  76
  77   void TransferVertexWData(const TopoDS_Vertex& aVertex,
  78                            vtkPoints* Pts,
  79                            vtkCellArray* Cells);
  80
  81   void createISO(const TopoDS_Face &,
  82                  double, int,
  83                  vtkPoints* Pts,
  84                  vtkCellArray* Cells);
  85
  86   void DrawIso(GeomAbs_IsoType aType,
  87                Standard_Real PParm,
  88                Standard_Real p1,
  89                Standard_Real p2,
  90                vtkPoints* Pts,
  91                vtkCellArray* Cells,
  92                Standard_Integer& startidx);
  93
  94   void MoveTo(gp_Pnt P,
  95               vtkPoints* Pts);
  96
  97   void DrawTo(gp_Pnt P,
  98               vtkPoints* Pts,
  99               vtkCellArray* Cells);
 100
 101   void PlotIso(BRepAdaptor_Surface& S,
 102                GeomAbs_IsoType T,
 103                Standard_Real& U,
 104                Standard_Real& V,
 105                Standard_Real Step,
 106                Standard_Boolean& halt,
 107                vtkPoints* Pts,
 108                vtkCellArray* Cells);
 109
 110   // fields
 111
 112  private:
 113
 114   Standard_Boolean       forced;
 115   int                    discretiso;
 116   int                    amode;
 117   int                    nbisos;
 118   TopoDS_Shape           myShape;
 119
 120 };
 121
 122 #endif //GEOM_OCCREADER_H