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itkDistanceMetric.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkDistanceMetric.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/21 05:27:28 $
00007   Version:   $Revision: 1.4 $
00008 
00009   Copyright (c) 2002 Insight 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 __itkDistanceMetric_h
00018 #define __itkDistanceMetric_h
00019 
00020 #include "itkMembershipFunctionBase.h"
00021 #include "itkVector.h"
00022 
00023 namespace itk{ 
00024 namespace Statistics{
00025 
00042 template< class TVector >
00043 class ITK_EXPORT DistanceMetric : public MembershipFunctionBase< TVector >
00044 {
00045 public:
00047   typedef DistanceMetric Self;
00048   typedef MembershipFunctionBase< TVector > Superclass;
00049 
00051   itkStaticConstMacro(VectorLength, unsigned int, TVector::Length);
00052   
00054   itkTypeMacro(DistanceMetric, MembershipFunctionBase);
00055 
00056   typedef Vector< double, itkGetStaticConstMacro(VectorLength) > OriginType ;
00057 
00061   void SetOrigin(const OriginType& x) ;
00062 
00065   virtual double Evaluate(const TVector &x) const = 0 ;
00066   
00068   virtual double Evaluate(const TVector &x1, const TVector &x2) const = 0 ;
00069   
00070 protected:
00071   OriginType m_Origin ;
00072 } ; // end of class
00073 
00074 } // end of namespace Statistics 
00075 } // end of namespace itk
00076 
00077 #ifndef ITK_MANUAL_INSTANTIATION
00078 #include "itkDistanceMetric.txx"
00079 #endif
00080 
00081 #endif
00082 
00083 
00084 
00085 
00086 
00087 
00088 

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