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

  Program:   Visualization Toolkit
  Module:    vtkSuperquadric.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 vtkSuperquadric_h
#define vtkSuperquadric_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"

#define VTK_MIN_SUPERQUADRIC_THICKNESS  1e-4

class VTKCOMMONDATAMODEL_EXPORT vtkSuperquadric : public vtkImplicitFunction
{
public:
  static vtkSuperquadric *New();

  vtkTypeMacro(vtkSuperquadric,vtkImplicitFunction);
  void PrintSelf(ostream& os, vtkIndent indent);

  // ImplicitFunction interface
  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]);


  vtkSetVector3Macro(Center,double);
  vtkGetVectorMacro(Center,double,3);


  vtkSetVector3Macro(Scale,double);
  vtkGetVectorMacro(Scale,double,3);


  vtkGetMacro(Thickness,double);
  vtkSetClampMacro(Thickness,double,VTK_MIN_SUPERQUADRIC_THICKNESS,1.0);


  vtkGetMacro(PhiRoundness,double);
  void SetPhiRoundness(double e);


  vtkGetMacro(ThetaRoundness,double);
  void SetThetaRoundness(double e);


  vtkSetMacro(Size,double);
  vtkGetMacro(Size,double);


  vtkBooleanMacro(Toroidal,int);
  vtkGetMacro(Toroidal,int);
  vtkSetMacro(Toroidal,int);

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

  int Toroidal;
  double Thickness;
  double Size;
  double PhiRoundness;
  double ThetaRoundness;
  double Center[3];
  double Scale[3];
private:
  vtkSuperquadric(const vtkSuperquadric&);  // Not implemented.
  void operator=(const vtkSuperquadric&);  // Not implemented.
};

#endif