ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkEuclideanDistanceMetric.h
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00001 /*=========================================================================
00002  *
00003  *  Copyright Insight Software Consortium
00004  *
00005  *  Licensed under the Apache License, Version 2.0 (the "License");
00006  *  you may not use this file except in compliance with the License.
00007  *  You may obtain a copy of the License at
00008  *
00009  *         http://www.apache.org/licenses/LICENSE-2.0.txt
00010  *
00011  *  Unless required by applicable law or agreed to in writing, software
00012  *  distributed under the License is distributed on an "AS IS" BASIS,
00013  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  *  See the License for the specific language governing permissions and
00015  *  limitations under the License.
00016  *
00017  *=========================================================================*/
00018 #ifndef __itkEuclideanDistanceMetric_h
00019 #define __itkEuclideanDistanceMetric_h
00020 
00021 #include "itkDistanceMetric.h"
00022 
00023 namespace itk
00024 {
00025 namespace Statistics
00026 {
00033 template< class TVector >
00034 class ITK_EXPORT EuclideanDistanceMetric:
00035   public DistanceMetric< TVector >
00036 {
00037 public:
00039   typedef EuclideanDistanceMetric    Self;
00040   typedef DistanceMetric< TVector >  Superclass;
00041   typedef SmartPointer< Self >       Pointer;
00042   typedef SmartPointer< const Self > ConstPointer;
00043 
00044   typedef typename Superclass::MeasurementVectorType                                MeasurementVectorType;
00045   typedef typename MeasurementVectorTraitsTypes< MeasurementVectorType >::ValueType ValueType;
00046   typedef typename Superclass::MeasurementVectorSizeType                            MeasurementVectorSizeType;
00047 
00048   typedef typename Superclass::OriginType OriginType;
00049 
00051   itkTypeMacro(EuclideanDistanceMetric, DistanceMetric);
00052 
00054   itkNewMacro(Self);
00055 
00057   double Evaluate(const MeasurementVectorType & x) const;
00058 
00060   double Evaluate(const MeasurementVectorType & x1, const MeasurementVectorType & x2) const;
00061 
00066   double Evaluate(const ValueType & a, const ValueType & b) const;
00067 
00068 protected:
00069   EuclideanDistanceMetric() {}
00070   virtual ~EuclideanDistanceMetric() {}
00071 };  // end of class
00072 } // end of namespace Statistics
00073 } // end of namespace itk
00074 
00075 #ifndef ITK_MANUAL_INSTANTIATION
00076 #include "itkEuclideanDistanceMetric.hxx"
00077 #endif
00078 
00079 #endif
00080