/usr/include/OTB-6.4/otbMaskMuParserFunctor.txx is in libotb-dev 6.4.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* 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 otbMaskMuParserFunctor_txx
#define otbMaskMuParserFunctor_txx
#include "otbMaskMuParserFunctor.h"
namespace otb
{
namespace Functor
{
// constructor
template<class TInputPixel>
MaskMuParserFunctor<TInputPixel>::MaskMuParserFunctor()
: m_Parser(ParserType::New()),
m_NbOfBands(0),
m_ParserResult(0),
m_Intensity(0),
m_SpectralAngle(0)
{
}
// Destructor
template<class TInputPixel>
MaskMuParserFunctor<TInputPixel>::~MaskMuParserFunctor()
{
}
template<class TInputPixel>
bool MaskMuParserFunctor<TInputPixel>::operator()(const PixelType &p)
{
double value;
if (p.Size() != m_NbOfBands)
{
this->SetNumberOfBands(p.GetSize());
}
// we fill the buffer
for (unsigned int i = 0; i < m_NbOfBands; ++i)
{
m_AImage[i] = static_cast<double> (p[i]);
}
// user defined variables
m_Intensity = 0.0;
for (unsigned int i = 0; i < m_NbOfBands; ++i)
{
m_Intensity += p[i];
}
m_Intensity = m_Intensity / (static_cast<double> (m_NbOfBands));
m_SpectralAngle = m_SpectralAngleFunctor(p, m_SpectralAngleReferencePixel);
value = m_Parser->Eval();
return static_cast<bool> (value);
}
template<class TInputPixel>
const std::map<std::string, Parser::ValueType*>&
MaskMuParserFunctor<TInputPixel>::GetVar() const
{
return this->m_Parser->GetVar();
}
template<class TInputPixel>
Parser::FunctionMapType
MaskMuParserFunctor<TInputPixel>::GetFunList() const
{
return this->m_Parser->GetFunList();
}
template<class TInputPixel>
void
MaskMuParserFunctor<TInputPixel>::SetExpression(const std::string& expression)
{
m_Expression = expression;
m_Parser->SetExpr(m_Expression);
}
/** Return the expression to be parsed */
template<class TInputPixel>
std::string
MaskMuParserFunctor<TInputPixel>::GetExpression() const
{
return m_Expression;
}
template<class TInputPixel>
void
MaskMuParserFunctor<TInputPixel>::SetNumberOfBands(unsigned int NbOfBands)
{
m_NbOfBands = NbOfBands;
std::ostringstream varName;
m_AImage.resize(NbOfBands, 0.0);
for (unsigned int i = 0; i < NbOfBands; ++i)
{
varName << "b" << i + 1;
m_Parser->DefineVar(varName.str(), &(m_AImage[i]));
varName.str("");
}
// customized data
m_Parser->DefineVar("intensity", &m_Intensity);
m_Parser->DefineVar("spectralAngle", &m_SpectralAngle);
}
/** Set the reference pixel used to compute the "spectralangle" parser variable */
template<class TInputPixel>
void
MaskMuParserFunctor<TInputPixel>::SetSpectralAngleReferencePixel(const PixelType& refPixel)
{
m_SpectralAngleReferencePixel = refPixel;
}
/** Check the expression */
template<class TInputPixel>
bool
MaskMuParserFunctor<TInputPixel>::CheckExpression()
{
return m_Parser->CheckExpr();
}
} // end namespace Functor
} // end namespace otb
#endif
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