dox/Filtering/vtkTriQuadraticHexahedron.h

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

  Program:   Visualization Toolkit
  Module:    vtkTriQuadraticHexahedron.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 __vtkTriQuadraticHexahedron_h
#define __vtkTriQuadraticHexahedron_h

#include "vtkNonLinearCell.h"

class vtkQuadraticEdge;
class vtkBiQuadraticQuad;
class vtkHexahedron;
class vtkDoubleArray;

class VTK_FILTERING_EXPORT vtkTriQuadraticHexahedron : public vtkNonLinearCell
{
public:
  static vtkTriQuadraticHexahedron *New ();
  vtkTypeMacro(vtkTriQuadraticHexahedron,vtkNonLinearCell);
  void PrintSelf (ostream & os, vtkIndent indent);


  int GetCellType () { return VTK_TRIQUADRATIC_HEXAHEDRON; }
  int GetCellDimension () { return 3; }
  int GetNumberOfEdges () { return 12; }
  int GetNumberOfFaces () { return 6; }
  vtkCell *GetEdge (int);
  vtkCell *GetFace (int);

  int CellBoundary (int subId, double pcoords[3], vtkIdList * pts);
  void Contour (double value, vtkDataArray * cellScalars,
    vtkIncrementalPointLocator * locator, vtkCellArray * verts,
    vtkCellArray * lines, vtkCellArray * polys,
    vtkPointData * inPd, vtkPointData * outPd, vtkCellData * inCd,
    vtkIdType cellId, vtkCellData * outCd);
  int EvaluatePosition (double x[3], double *closestPoint,
    int &subId, double pcoords[3], double &dist2, double *weights);
  void EvaluateLocation (int &subId, double pcoords[3], double x[3], double *weights);
  int Triangulate (int index, vtkIdList * ptIds, vtkPoints * pts);
  void Derivatives (int subId, double pcoords[3], double *values, int dim, double *derivs);
  virtual double *GetParametricCoords ();


  void Clip (double value, vtkDataArray * cellScalars,
       vtkIncrementalPointLocator * locator, vtkCellArray * tetras,
       vtkPointData * inPd, vtkPointData * outPd,
       vtkCellData * inCd, vtkIdType cellId, vtkCellData * outCd, int insideOut);


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


  static void InterpolationFunctions (double pcoords[3], double weights[27]);
  // Description:
  // @deprecated Replaced by vtkTriQuadraticHexahedron::InterpolateDerivs as of VTK 5.2
  static void InterpolationDerivs (double pcoords[3], double derivs[81]);
  // Description:
  // Compute the interpolation functions/derivatives
  // (aka shape functions/derivatives)
  virtual void InterpolateFunctions (double pcoords[3], double weights[27])
    {
    vtkTriQuadraticHexahedron::InterpolationFunctions(pcoords,weights);
    }
  virtual void InterpolateDerivs (double pcoords[3], double derivs[81])
    {
    vtkTriQuadraticHexahedron::InterpolationDerivs(pcoords,derivs);
    }
  // Description:
  // Return the ids of the vertices defining edge/face (`edgeId`/`faceId').
  // Ids are related to the cell, not to the dataset.
  static int *GetEdgeArray(int edgeId);
  static int *GetFaceArray(int faceId);

  void JacobianInverse (double pcoords[3], double **inverse, double derivs[81]);

protected:
  vtkTriQuadraticHexahedron ();
  ~vtkTriQuadraticHexahedron ();

  vtkQuadraticEdge *Edge;
  vtkBiQuadraticQuad *Face;
  vtkHexahedron *Hex;
  vtkDoubleArray *Scalars;

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

#endif

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