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itkEuclideanDistanceMetric.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkEuclideanDistanceMetric.h,v $
00005   Language:  C++
00006   Date:      $Date: 2009-05-02 05:43:55 $
00007   Version:   $Revision: 1.1 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 #ifndef __itkEuclideanDistanceMetric_h
00018 #define __itkEuclideanDistanceMetric_h
00019 
00020 #include "itkNumericTraits.h"
00021 #include "itkDistanceMetric.h"
00022 #include "itkMeasurementVectorTraits.h"
00023 
00024 namespace itk  { 
00025 namespace Statistics  {
00026 
00032 template< class TVector >
00033 class ITK_EXPORT EuclideanDistanceMetric : 
00034     public DistanceMetric< TVector >
00035 {
00036 public:
00038   typedef EuclideanDistanceMetric       Self;
00039   typedef DistanceMetric< TVector >     Superclass;
00040   typedef SmartPointer< Self >          Pointer; 
00041   typedef SmartPointer<const Self>      ConstPointer;
00042 
00043   typedef typename Superclass::MeasurementVectorType     MeasurementVectorType;
00044   typedef typename MeasurementVectorTraitsTypes<MeasurementVectorType>::ValueType      ValueType;
00045   typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
00046 
00047   typedef typename Superclass::OriginType OriginType;
00048 
00050   itkTypeMacro(EuclideanDistanceMetric, DistanceMetric);
00051 
00053   itkNewMacro(Self);
00054 
00056   double Evaluate(const MeasurementVectorType &x) const;
00057 
00059   double Evaluate(const MeasurementVectorType &x1, const MeasurementVectorType &x2) const;
00060 
00065   double Evaluate(const ValueType &a, const ValueType &b) const;
00066 
00067 protected:
00068   EuclideanDistanceMetric() {}
00069   virtual ~EuclideanDistanceMetric() {} 
00070 }; // end of class
00071 
00072 } // end of namespace Statistics 
00073 } // end of namespace itk
00074 
00075 #ifndef ITK_MANUAL_INSTANTIATION
00076 #include "itkEuclideanDistanceMetric.txx"
00077 #endif
00078 
00079 #endif
00080 

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