itkManhattanDistanceMetric.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkManhattanDistanceMetric.h,v $
  Language:  C++
  Date:      $Date: 2009-05-02 05:43:58 $
  Version:   $Revision: 1.1 $

  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 __itkManhattanDistanceMetric_h
#define __itkManhattanDistanceMetric_h

#include "itkNumericTraits.h"
#include "itkDistanceMetric.h"
#include "itkMeasurementVectorTraits.h"

namespace itk  { 
namespace Statistics  {

template< class TVector >
class ITK_EXPORT ManhattanDistanceMetric : 
    public DistanceMetric< TVector >
{
public:
  typedef ManhattanDistanceMetric       Self;
  typedef DistanceMetric< TVector >     Superclass;
  typedef SmartPointer< Self >          Pointer; 
  typedef SmartPointer<const Self>      ConstPointer;

  typedef typename Superclass::MeasurementVectorType  MeasurementVectorType;


  typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;

  itkTypeMacro(ManhattanDistanceMetric, DistanceMetric);

  itkNewMacro(Self);

  double Evaluate(const MeasurementVectorType &x) const;

  double Evaluate(const MeasurementVectorType &x1, const MeasurementVectorType &x2) const;

protected:
  ManhattanDistanceMetric() {}
  virtual ~ManhattanDistanceMetric() {} 
}; // end of class

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

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkManhattanDistanceMetric.txx"
#endif

#endif

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