dox/Filtering/vtkQuadraticLinearWedge.h

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

  Program:   Visualization Toolkit
  Module:    vtkQuadraticLinearWedge.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 __vtkQuadraticLinearWedge_h
#define __vtkQuadraticLinearWedge_h

#include "vtkNonLinearCell.h"

class vtkQuadraticEdge;
class vtkLine;
class vtkQuadraticLinearQuad;
class vtkQuadraticTriangle;
class vtkWedge;
class vtkDoubleArray;

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


  int GetCellType () { return VTK_QUADRATIC_LINEAR_WEDGE; }
  int GetCellDimension () { return 3; }
  int GetNumberOfEdges () { return 9; }
  int GetNumberOfFaces () { return 5; }
  vtkCell *GetEdge (int edgeId);
  vtkCell *GetFace (int faceId);

  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);

  int GetParametricCenter (double pcoords[3]);

  static void InterpolationFunctions (double pcoords[3], double weights[15]);
  static void InterpolationDerivs (double pcoords[3], double derivs[45]);

  virtual void InterpolateFunctions (double pcoords[3], double weights[15])
    {
    vtkQuadraticLinearWedge::InterpolationFunctions(pcoords,weights);
    }
  virtual void InterpolateDerivs (double pcoords[3], double derivs[45])
    {
    vtkQuadraticLinearWedge::InterpolationDerivs(pcoords,derivs);
    }


  static int *GetEdgeArray(int edgeId);
  static int *GetFaceArray(int faceId);

  void JacobianInverse (double pcoords[3], double **inverse, double derivs[45]);

protected:
  vtkQuadraticLinearWedge ();
  ~vtkQuadraticLinearWedge ();

  vtkQuadraticEdge *QuadEdge;
  vtkLine *Edge;
  vtkQuadraticTriangle *TriangleFace;
  vtkQuadraticLinearQuad *Face;
  vtkWedge *Wedge;
  vtkDoubleArray *Scalars;  //used to avoid New/Delete in contouring/clipping

private:
  vtkQuadraticLinearWedge (const vtkQuadraticLinearWedge &);  // Not implemented.
  void operator = (const vtkQuadraticLinearWedge &);  // Not implemented.
};
//----------------------------------------------------------------------------
// Return the center of the quadratic wedge in parametric coordinates.
inline int vtkQuadraticLinearWedge::GetParametricCenter(double pcoords[3])
{
  pcoords[0] = pcoords[1] = 1./3;
  pcoords[2] = 0.5;
  return 0;
}


#endif