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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 otbParserConditionDataNodeFeatureFunction_txx
#define otbParserConditionDataNodeFeatureFunction_txx
#include "otbParserConditionDataNodeFeatureFunction.h"
namespace otb
{
/**
* Constructor
*/
template <class TImage, class TCoordRep, class TPrecision>
ParserConditionDataNodeFeatureFunction<TImage, TCoordRep, TPrecision>
::ParserConditionDataNodeFeatureFunction()
{
m_ParserConditionFunctor = ParserConditionFunctorType::New();
}
/**
* Standard "PrintSelf" method
*/
template <class TImage, class TCoordRep, class TPrecision>
void
ParserConditionDataNodeFeatureFunction<TImage, TCoordRep, TPrecision>
::PrintSelf( std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf( os, indent );
//os << indent << "ParserCondition : " << m_ParserConditionFunctor << std::endl;
}
template <class TImage, class TCoordRep, class TPrecision>
typename ParserConditionDataNodeFeatureFunction<TImage, TCoordRep, TPrecision>
::OutputType
ParserConditionDataNodeFeatureFunction<TImage, TCoordRep, TPrecision>
::Evaluate( const DataNodeType& node ) const
{
// The parser evaluation can't be const since the parser state
// changes at the first evaluation, but in fact we don't modify
// anything here.
// To fit with the rest of the framework, we try to keep the Evaluate
// function const
Self* _this = const_cast<Self*>(this);
ParserConditionFunctorType& parser = *(_this->m_ParserConditionFunctor);
// Ugly things over
const typename ImageLineIteratorType::PathType* path;
switch (node.GetNodeType())
{
case FEATURE_POINT:
{
itkExceptionMacro(<< "This DataNode type is not handle yet");
break;
}
case FEATURE_LINE:
{
path = node.GetLine();
break;
}
case FEATURE_POLYGON:
{
path = node.GetPolygonExteriorRing();
break;
}
default:
{
itkExceptionMacro(<< "This DataNode type is not handle yet");
break;
}
}
ImageLineIteratorType lineIt(this->GetInputImage(), path);
lineIt.GoToBegin();
double nbValidPixel = 0.;
double nbVisitedPixel = 0.;
while(!lineIt.IsAtEnd())
{
if(this->IsInsideBuffer(lineIt.GetIndex()))
{
if( parser(this->GetInputImage()->GetPixel(lineIt.GetIndex())) )
{
nbValidPixel += 1;
}
nbVisitedPixel += 1;
}
++lineIt;
}
OutputType output;
if(nbVisitedPixel == 0)
{
output.push_back(static_cast<PrecisionType>(0.));
}
else
{
output.push_back(static_cast<PrecisionType>(nbValidPixel/nbVisitedPixel));
}
output.push_back(static_cast<PrecisionType>(nbValidPixel));
output.push_back(static_cast<PrecisionType>(nbVisitedPixel));
return output;
}
} // end namespace otb
#endif
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