itkKernelFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkKernelFunction.h,v $
  Language:  C++
  Date:      $Date: 2006-02-06 22:01:56 $
  Version:   $Revision: 1.6 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

=========================================================================*/
#ifndef __itkKernelFunction_h
#define __itkKernelFunction_h

#include "itkFunctionBase.h"
#include "vnl/vnl_math.h"

namespace itk
{

class ITKCommon_EXPORT KernelFunction : public FunctionBase<double,double>
{
public:  
  typedef KernelFunction Self;
  typedef FunctionBase<double,double> Superclass;
  typedef SmartPointer<Self>  Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkTypeMacro(KernelFunction, FunctionBase);

  virtual double Evaluate (const double& u) const = 0;

protected:  
  KernelFunction();
  ~KernelFunction();
  void PrintSelf(std::ostream& os, Indent indent) const
    { Superclass::PrintSelf( os, indent ); }  

};


} // end namespace itk

#endif

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