itkEuclideanSquareDistanceMetric.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
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 *=========================================================================*/
#ifndef itkEuclideanSquareDistanceMetric_h
#define itkEuclideanSquareDistanceMetric_h
 
#include "itkDistanceMetric.h"
 
namespace itk
{
namespace Statistics
{
template <typename TVector>
class ITK_TEMPLATE_EXPORT EuclideanSquareDistanceMetric : public DistanceMetric<TVector>
{
public:
 
  using Self = EuclideanSquareDistanceMetric;
  using Superclass = DistanceMetric<TVector>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  using typename Superclass::MeasurementVectorSizeType;
  using typename Superclass::MeasurementVectorType;
 
  itkOverrideGetNameOfClassMacro(EuclideanSquareDistanceMetric);
 
  itkNewMacro(Self);
 
  double
  Evaluate(const MeasurementVectorType & x) const override;
 
  double
  Evaluate(const MeasurementVectorType & x1, const MeasurementVectorType & x2) const override;
 
protected:
  EuclideanSquareDistanceMetric() = default;
  ~EuclideanSquareDistanceMetric() override = default;
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkEuclideanSquareDistanceMetric.hxx"
#endif
 
#endif