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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.
*
*=========================================================================*/
#ifndef itkManhattanDistanceMetric_h
#define itkManhattanDistanceMetric_h
#include "itkDistanceMetric.h"
namespace itk
{
namespace Statistics
{
/**
* \class ManhattanDistanceMetric
* \brief Euclidean distance function.
*
* \sa DistanceMetric
* \sa EuclideanSquareDistanceMetric
* \sa EuclideanDistanceMetric
*
* \ingroup ITKStatistics
*/
template <typename TVector>
class ITK_TEMPLATE_EXPORT ManhattanDistanceMetric : public DistanceMetric<TVector>
{
public:
/** Standard "Self" type alias. */
using Self = ManhattanDistanceMetric;
using Superclass = DistanceMetric<TVector>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using typename Superclass::MeasurementVectorType;
using typename Superclass::MeasurementVectorSizeType;
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(ManhattanDistanceMetric);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Gets the distance between the origin and x */
double
Evaluate(const MeasurementVectorType & x) const override;
/** Gets the distance between x1 and x2 */
double
Evaluate(const MeasurementVectorType & x1, const MeasurementVectorType & x2) const override;
protected:
ManhattanDistanceMetric() = default;
~ManhattanDistanceMetric() override = default;
}; // end of class
} // end of namespace Statistics
} // end of namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkManhattanDistanceMetric.hxx"
#endif
#endif
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