ITK  4.1.0
Insight Segmentation and Registration Toolkit
itkEuclideanSquareDistanceMetric.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 __itkEuclideanSquareDistanceMetric_h
00019 #define __itkEuclideanSquareDistanceMetric_h
00020 
00021 #include "itkDistanceMetric.h"
00022 
00023 namespace itk
00024 {
00025 namespace Statistics
00026 {
00035 template< class TVector >
00036 class ITK_EXPORT EuclideanSquareDistanceMetric:
00037   public DistanceMetric< TVector >
00038 {
00039 public:
00041   typedef EuclideanSquareDistanceMetric Self;
00042   typedef DistanceMetric< TVector >     Superclass;
00043   typedef SmartPointer< Self >          Pointer;
00044   typedef SmartPointer< const Self >    ConstPointer;
00045 
00046   typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
00047   typedef typename Superclass::MeasurementVectorType     MeasurementVectorType;
00048 
00050   itkTypeMacro(EuclideanSquareDistanceMetric, 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 
00061 protected:
00062   EuclideanSquareDistanceMetric() {}
00063   virtual ~EuclideanSquareDistanceMetric() {}
00064 };  // end of class
00065 } // end of namespace Statistics
00066 } // end of namespace itk
00067 
00068 #ifndef ITK_MANUAL_INSTANTIATION
00069 #include "itkEuclideanSquareDistanceMetric.hxx"
00070 #endif
00071 
00072 #endif
00073