vtkQuadric.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkQuadric.h,v $

  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 __vtkQuadric_h
#define __vtkQuadric_h

#include "vtkImplicitFunction.h"

class VTK_COMMON_EXPORT vtkQuadric : public vtkImplicitFunction
{
public:
  vtkTypeRevisionMacro(vtkQuadric,vtkImplicitFunction);
  void PrintSelf(ostream& os, vtkIndent indent);
  
  static vtkQuadric *New();


  double EvaluateFunction(double x[3]);
  double EvaluateFunction(double x, double y, double z)
    {return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;

  void EvaluateGradient(double x[3], double g[3]);
  

  void SetCoefficients(double a[10]);
  void SetCoefficients(double a0, double a1, double a2, double a3, double a4, 
                       double a5, double a6, double a7, double a8, double a9);
  vtkGetVectorMacro(Coefficients,double,10);

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

  double Coefficients[10];

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

#endif

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