---

Filtering/vtkSuperquadric.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkSuperquadric.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 __vtkSuperquadric_h
#define __vtkSuperquadric_h

#include "vtkImplicitFunction.h"

#define VTK_MIN_SUPERQUADRIC_THICKNESS  1e-4

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

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

  // ImplicitFunction interface
  float EvaluateFunction(float x[3]);
  float EvaluateFunction(float x, float y, float z)
    {return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
  void EvaluateGradient(float x[3], float g[3]);


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


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


  vtkGetMacro(Thickness,float);
  vtkSetClampMacro(Thickness,float,VTK_MIN_SUPERQUADRIC_THICKNESS,1.0f);


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


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


  vtkSetMacro(Size,float);
  vtkGetMacro(Size,float);


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

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

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

#endif

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