---

Filtering/vtkCardinalSpline.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkCardinalSpline.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkCardinalSpline_h
#define __vtkCardinalSpline_h

#include "vtkSpline.h"

class VTK_FILTERING_EXPORT vtkCardinalSpline : public vtkSpline
{
public:
  static vtkCardinalSpline *New();

  vtkTypeRevisionMacro(vtkCardinalSpline,vtkSpline);
  void PrintSelf(ostream& os, vtkIndent indent);

  void Compute ();

  virtual float Evaluate (float t);

  virtual void DeepCopy(vtkSpline *s);

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

  void Fit1D (int n, float *x, float *y, float *w, float coefficients[][4],
              int leftConstraint, float leftValue, int rightConstraint, 
              float rightValue);

  void FitClosed1D (int n, float *x, float *y, float *w, 
                    float coefficients[][4]);

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

#endif

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