/usr/include/OTB-6.4/otbEuclideanDistanceMetricWithMissingValuePow2.h is in libotb-dev 6.4.0+dfsg-1.
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* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
* Copyright (C) 2007-2012 Institut Mines Telecom / Telecom Bretagne
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 otbEuclideanDistanceMetricWithMissingValuePow2_h
#define otbEuclideanDistanceMetricWithMissingValuePow2_h
#include "itkEuclideanDistanceMetric.h"
namespace otb {
namespace Statistics {
/** \class EuclideanDistanceMetricWithMissingValuePow2
* \brief Euclidean comparison distance function facing missing value. The square root is not performed in this class.
*
* This class is derived from EuclideanDistanceMetric class. In addition
* to the initial Evaluate method, the class does not perform calculation
* when a component does not contain any data. The 'no data' case is perform through the \code SetToMissingValue() \endcode
* which performs a \code Nan \endcode affectation.
*
* The class can be templated over any container that holds data elements, as
* for template of EuclideanDistanceMetric.
*
* The only restriction is that elements have to support NaN values.
*
* \sa EuclideanDistanceMetric
* \sa EuclideanDistanceMetricWithMissingValue
*
* \ingroup OTBImageManipulation
*/
template<class TVector>
class ITK_EXPORT EuclideanDistanceMetricWithMissingValuePow2 :
public itk::Statistics::EuclideanDistanceMetric<TVector>
{
public:
/** Standard "Self" typedef. */
typedef EuclideanDistanceMetricWithMissingValuePow2 Self;
typedef itk::Statistics::EuclideanDistanceMetric<TVector> Superclass;
typedef itk::SmartPointer<Self> Pointer;
typedef itk::SmartPointer<const Self> ConstPointer;
typedef typename Superclass::MeasurementVectorSizeType MeasurementVectorSizeType;
/** Run-time type information (and related methods). */
itkTypeMacro(EuclideanDistanceMetricWithMissingValuePow2, EuclideanDistanceMetric);
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Type of the component of a vector */
typedef typename TVector::ValueType ValueType;
/** Gets the distance between the origin and x */
double Evaluate(const TVector& x) const ITK_OVERRIDE;
/** Gets the distance between x1 and x2 */
double Evaluate(const TVector& x1, const TVector& x2) const ITK_OVERRIDE;
/** Gets the cooridnate distance between a and b. NOTE: a and b
* should be type of component */
double Evaluate(const ValueType& a, const ValueType& b) const;
/** Returns true if the distance between x and the origin is less
* than radius */
bool IsWithinRange(const TVector& x, const double radius) const
{
return Superclass::IsWithinRange(x, radius);
}
/** Check if a value is NaN or not */
static bool IsMissingValue(const ValueType& v);
/** Set a value to Nan */
static void SetToMissingValue(ValueType& v);
protected:
EuclideanDistanceMetricWithMissingValuePow2() {}
~EuclideanDistanceMetricWithMissingValuePow2() ITK_OVERRIDE {}
}; // end of class
} // end namespace statistics
} // end namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbEuclideanDistanceMetricWithMissingValuePow2.txx"
#endif
#endif
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