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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkBridgeCell.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkBridgeCell_h
#define vtkBridgeCell_h

#include "vtkBridgeExport.h" //for module export macro
#include "vtkGenericAdaptorCell.h"

class vtkCell;
class vtkBridgeDataSet;
class vtkBridgeCellIterator;

class VTKTESTINGGENERICBRIDGE_EXPORT vtkBridgeCell : public vtkGenericAdaptorCell
{
public:
  static vtkBridgeCell *New();
  vtkTypeMacro(vtkBridgeCell,vtkGenericAdaptorCell);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual vtkIdType GetId();

  virtual int IsInDataSet();

  virtual int GetType();

  virtual int GetDimension();

  virtual int GetGeometryOrder();

  int IsGeometryLinear();

  virtual int GetAttributeOrder(vtkGenericAttribute *a);

  int IsAttributeLinear(vtkGenericAttribute *a);

  virtual int IsPrimary();

  virtual int GetNumberOfPoints();

  virtual int GetNumberOfBoundaries(int dim=-1);

  virtual int GetNumberOfDOFNodes();

  virtual void GetPointIterator(vtkGenericPointIterator *it);

  virtual vtkGenericCellIterator *NewCellIterator();


  virtual void GetBoundaryIterator(vtkGenericCellIterator *boundaries,
                                   int dim=-1);


  virtual int CountNeighbors(vtkGenericAdaptorCell *boundary);
  void CountEdgeNeighbors( int* sharing );


  virtual void GetNeighbors(vtkGenericAdaptorCell *boundary,
                            vtkGenericCellIterator *neighbors);


  virtual int FindClosestBoundary(int subId,
                                  double pcoords[3],
                                  vtkGenericCellIterator* &boundary);


  virtual int EvaluatePosition(double x[3],
                               double *closestPoint,
                               int &subId,
                               double pcoords[3],
                               double &dist2);


  virtual void EvaluateLocation(int subId,
                                double pcoords[3],
                                double x[3]);


  virtual void InterpolateTuple(vtkGenericAttribute *a, double pcoords[3],
                                double *val);


  virtual void InterpolateTuple(vtkGenericAttributeCollection *c, double pcoords[3],
                                double *val);
#if 0



  virtual void Contour(vtkContourValues *values,
                       vtkImplicitFunction *f,
                       vtkGenericAttributeCollection *attributes,
                       vtkPointLocator *locator,
                       vtkCellArray *verts,
                       vtkCellArray *lines,
                       vtkCellArray *polys,
                       vtkPointData *outPd,
                       vtkCellData *outCd);
#endif
#if 0



  virtual void Clip(double value,
                    vtkImplicitFunction *f,
                    vtkGenericAttributeCollection *attributes,
                    vtkGenericCellTessellator *tess,
                    int insideOut,
                    vtkPointLocator *locator,
                    vtkCellArray *connectivity,
                    vtkPointData *outPd,
                    vtkCellData *outCd);
#endif



  virtual int IntersectWithLine(double p1[3],
                                double p2[3],
                                double tol,
                                double &t,
                                double x[3],
                                double pcoords[3],
                                int &subId);


  virtual void Derivatives(int subId,
                           double pcoords[3],
                           vtkGenericAttribute *attribute,
                           double *derivs);

  virtual void GetBounds(double bounds[6]);

  virtual double *GetBounds();

  virtual double GetLength2();

  virtual int GetParametricCenter(double pcoords[3]);

  virtual double GetParametricDistance(double pcoords[3]);


  virtual double *GetParametricCoords();
#if 0



  virtual void Tessellate(vtkGenericAttributeCollection *attributes,
                          vtkPoints *points, vtkCellArray* cellArray,
                          vtkPointData *pd, vtkCellData* cd);
#endif
  // For the internals of the tesselation algorithm (the hash table in particular)
  virtual int IsFaceOnBoundary(vtkIdType faceId);
  virtual int IsOnBoundary();


  virtual void GetPointIds(vtkIdType *id);
#if 0
  virtual void TriangulateFace(vtkGenericAttributeCollection *attributes,
                               vtkGenericCellTessellator *tess,
                               int index,
                               vtkPoints *pts, vtkCellArray *cellArray,
                               vtkPointData *pd,
                               vtkCellData *cd );
#endif


  int *GetFaceArray(int faceId);

  int GetNumberOfVerticesOnFace(int faceId);

  int *GetEdgeArray(int edgeId);


  void Init(vtkBridgeDataSet *ds,
            vtkIdType cellid);


  void InitWithCell(vtkCell *c,
                    vtkIdType id);

  void DeepCopy(vtkBridgeCell *other);

protected:
  vtkBridgeCell();
  virtual ~vtkBridgeCell();

  void AllocateWeights();

  void InterpolationFunctions(double pcoords[3], double *weights);

  friend class vtkBridgeDataSet;
  friend class vtkBridgeAttribute;
  friend class vtkBridgeCellIterator;
  friend class vtkBridgeCellIteratorOnDataSet;
  friend class vtkBridgeCellIteratorOne;
  friend class vtkBridgeCellIteratorOnCellBoundaries;
  friend class vtkBridgePointIteratorOnCell;

  vtkCell *Cell;
  vtkBridgeDataSet *DataSet;
  vtkIdType Id; // what does it mean for boundary cells?
  int BoolIsInDataSet;
  vtkBridgeCellIterator *InternalIterator; // used in Contour

  double *Weights; // interpolation functions
  int WeightsCapacity;

private:
  vtkBridgeCell(const vtkBridgeCell&);  // Not implemented.
  void operator=(const vtkBridgeCell&);  // Not implemented.
};

#endif