itkNNetDistanceMetricBase.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkNNetDistanceMetricBase.h,v $
  Language:  C++
  Date:      $Date: 2009-01-28 21:04:59 $
  Version:   $Revision: 1.3 $

  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 __itkNNetDistanceMetricBase_h
#define __itkNNetDistanceMetricBase_h

#include "itkFunctionBase.h"

namespace itk
{
namespace Statistics
{

template<class TMeasurementVector>
class NNetDistanceMetricBase : public FunctionBase<TMeasurementVector, double>
{
public:

  typedef NNetDistanceMetricBase                  Self;
  typedef FunctionBase<TMeasurementVector,double> Superclass;
  typedef SmartPointer<Self>                      Pointer;
  typedef SmartPointer<const Self>                ConstPointer;

  itkTypeMacro(NNetDistanceMetricBase, FunctionBase);

  typedef TMeasurementVector InputVectorType;

  virtual double Evaluate(const InputVectorType& x1, const InputVectorType& x2) const = 0;

  virtual double Evaluate(const InputVectorType& x) const {return 0;}

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

  virtual void PrintSelf( std::ostream& os, Indent indent ) const
    {
    os << indent << "NNetDistanceMetricBase(" << this << ")" << std::endl;
    Superclass::PrintSelf( os, indent );
    }

private:

  NNetDistanceMetricBase (const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

};

} // end namespace Statistics
} // end namespace itk

#endif