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

  Program:   Visualization Toolkit
  Module:    vtkKochanekSpline.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 vtkKochanekSpline_h
#define vtkKochanekSpline_h

#include "vtkCommonComputationalGeometryModule.h" // For export macro
#include "vtkSpline.h"

class VTKCOMMONCOMPUTATIONALGEOMETRY_EXPORT vtkKochanekSpline : public vtkSpline
{
public:
  vtkTypeMacro(vtkKochanekSpline,vtkSpline);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkKochanekSpline *New();

  void Compute ();

  double Evaluate (double t);


  vtkSetMacro(DefaultBias,double);
  vtkGetMacro(DefaultBias,double);


  vtkSetMacro(DefaultTension,double);
  vtkGetMacro(DefaultTension,double);


  vtkSetMacro(DefaultContinuity,double);
  vtkGetMacro(DefaultContinuity,double);

  virtual void DeepCopy(vtkSpline *s);

protected:
  vtkKochanekSpline();
  ~vtkKochanekSpline() {}

  void Fit1D (int n, double *x, double *y, double tension, double bias,
              double continuity, double coefficients[][4], int leftConstraint,
              double leftValue, int rightConstraint, double rightValue);

  double DefaultBias;
  double DefaultTension;
  double DefaultContinuity;

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

#endif