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itkEuclideanDistance.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkEuclideanDistance.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003/12/09 16:53:08 $
00007   Version:   $Revision: 1.8 $
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 __itkEuclideanDistance_h
00018 #define __itkEuclideanDistance_h
00019 
00020 #include "itkNumericTraits.h"
00021 #include "itkFixedArray.h"
00022 #include "itkDistanceMetric.h"
00023 
00024 namespace itk{ 
00025 namespace Statistics{
00026 
00037 template< class TVector >
00038 class ITK_EXPORT EuclideanDistance : 
00039     public DistanceMetric< TVector >
00040 {
00041 public:
00043   typedef EuclideanDistance Self;
00044   typedef DistanceMetric< TVector > Superclass;
00045   typedef SmartPointer< Self > Pointer ; 
00046   typedef SmartPointer<const Self> ConstPointer;
00047 
00049   itkStaticConstMacro(VectorLength, unsigned int, TVector::Length); 
00050 
00052   itkTypeMacro(EuclideanDistance, DistanceMetric);
00053 
00055   itkNewMacro(Self) ;
00056 
00058   typedef typename TVector::ValueType ValueType ;
00059 
00061   double Evaluate(const TVector &x) const ;
00062 
00064   double Evaluate(const TVector &x1, const TVector &x2) const ;
00065 
00068   double Evaluate(const ValueType &a, const ValueType &b) const ;
00069 
00072   bool IsWithinRange(const TVector &x, const double radius) const ;
00073 
00074 protected:
00075   EuclideanDistance() {}
00076   virtual ~EuclideanDistance() {} 
00077   virtual void PrintSelf(std::ostream& os, Indent indent) const
00078   { Superclass::PrintSelf(os, indent) ; }
00079 
00080 } ; // end of class
00081 
00082 } // end of namespace Statistics 
00083 } // end of namespace itk
00084 
00085 #ifndef ITK_MANUAL_INSTANTIATION
00086 #include "itkEuclideanDistance.txx"
00087 #endif
00088 
00089 #endif
00090 
00091 
00092 
00093 
00094 
00095 
00096 

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