/usr/include/OTB-6.4/otbFlexibleDistanceWithMissingValue.txx is in libotb-dev 6.4.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
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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 otbFlexibleDistanceWithMissingValue_txx
#define otbFlexibleDistanceWithMissingValue_txx
#include "otbFlexibleDistanceWithMissingValue.h"
#include "itkNumericTraits.h"
namespace otb {
namespace Statistics {
template<class TVector>
inline double
FlexibleDistanceWithMissingValue<TVector>
::Evaluate(const TVector& x1, const TVector& x2) const
{
if (IsEuclidean()) return Superclass::Evaluate(x1, x2);
if (itk::NumericTraits<TVector>::GetLength(x1) !=
itk::NumericTraits<TVector>::GetLength(x2))
{
itkExceptionMacro(<< "Vector lengths must be equal.");
}
double temp, distance = itk::NumericTraits<double>::Zero;
for (unsigned int i = 0; i < x1.Size(); ++i)
{
if (!this->IsMissingValue(x1[i]) && !this->IsMissingValue(x2[i]))
{
temp = vcl_pow(vcl_abs(vcl_pow(x1[i], this->Alpha) - vcl_pow(x2[i], this->Alpha)), this->Beta);
distance += temp;
}
}
return distance;
}
template<class TVector>
inline double
FlexibleDistanceWithMissingValue<TVector>
::Evaluate(const TVector& x) const
{
if (IsEuclidean()) return Superclass::Evaluate(x);
MeasurementVectorSizeType
measurementVectorSize = this->GetMeasurementVectorSize();
if (measurementVectorSize == 0)
{
itkExceptionMacro(<< "Please set the MeasurementVectorSize first");
}
itk::Statistics::MeasurementVectorTraits::Assert(this->GetOrigin(), measurementVectorSize,
"EuclideanDistanceMetric::Evaluate Origin and input vector have different lengths");
double temp, distance = itk::NumericTraits<double>::Zero;
for (unsigned int i = 0; i < measurementVectorSize; ++i)
{
if (!this->IsMissingValue(this->GetOrigin()[i]) && !this->IsMissingValue(x[i]))
{
temp = vcl_pow(vcl_abs(vcl_pow(this->GetOrigin()[i], this->Alpha) - vcl_pow(x[i], this->Alpha)), this->Beta);
distance += temp;
}
}
return distance;
}
template<class TVector>
inline double
FlexibleDistanceWithMissingValue<TVector>
::Evaluate(const ValueType& a, const ValueType& b) const
{
if (IsEuclidean()) return Superclass::Evaluate(a, b);
// FIXME throw NaN exception instaed of returning 0. ??
if (this->IsMissingValue(a) || this->IsMissingValue(b)) return 0.0;
double temp = vcl_pow(vcl_abs(vcl_pow(a, this->Alpha) - vcl_pow(b, this->Alpha)), this->Beta);
return temp;
}
template<class TVector>
void
FlexibleDistanceWithMissingValue<TVector>
::SetAlphaBeta(double a, double b)
{
Alpha = a;
Beta = b;
}
template<class TVector>
bool
FlexibleDistanceWithMissingValue<TVector>
::IsEuclidean()
{
if ((Alpha == 1.0) && (Beta == 2.0))
{
return true;
}
else
{
return false;
}
}
} // end namespace statistics
} // end namespace otb
#endif
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