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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef otbScalarBufferToImageFileWriter_txx
#define otbScalarBufferToImageFileWriter_txx
#include "otbMacro.h"
#include "otbScalarBufferToImageFileWriter.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionIteratorWithIndex.h"
namespace otb
{
template<class TBufferType, class TOutputPixelType>
ScalarBufferToImageFileWriter<TBufferType, TOutputPixelType>
::ScalarBufferToImageFileWriter() : m_Buffer(ITK_NULLPTR), m_NumberOfChannels(0), m_InverseXSpacing(false)
{
m_Writer = WriterType::New();
m_ImageSize.Fill(0);
}
template<class TBufferType, class TOutputPixelType>
void
ScalarBufferToImageFileWriter<TBufferType, TOutputPixelType>::GenerateData()
{
// Check image parameters
if( (m_ImageSize[0]==0) || (m_ImageSize[0]==0) )
{
itkExceptionMacro("Invalid output image size, Size can't be null.");
}
if( m_NumberOfChannels==0 )
{
itkExceptionMacro("Invalid output image number of channels.");
}
RegionType lRegion;
IndexType lId;
lId.Fill(0);
lRegion.SetIndex(lId);
lRegion.SetSize(m_ImageSize);
typename ImageType::Pointer lImage = ImageType::New();
lImage->SetRegions( lRegion );
lImage->SetNumberOfComponentsPerPixel(m_NumberOfChannels);
lImage->Allocate();
PixelType lPix;
lPix.SetSize(m_NumberOfChannels);
lPix.Fill( itk::NumericTraits<OutputPixelType>::Zero );
lImage->FillBuffer(lPix);
// 1 specific loop for each case to save time processing
if(m_InverseXSpacing == false)
{
itk::ImageRegionIterator<ImageType> it(lImage, lRegion);
it.GoToBegin();
unsigned int cpt(0);
while( it.IsAtEnd()==false )
{
for(unsigned int i=0; i<m_NumberOfChannels; ++i)
{
lPix[i] = static_cast<OutputPixelType>(m_Buffer[cpt]);
++cpt;
}
it.Set( lPix );
++it;
}
}
else
{
itk::ImageRegionIteratorWithIndex<ImageType> it(lImage, lRegion);
it.GoToBegin();
// cpt is the first component of the last pixel
unsigned int cpt(0);
while( it.IsAtEnd()==false )
{
IndexType index = it.GetIndex();
cpt = (m_ImageSize[1] - 1 - index[1]) * m_NumberOfChannels * m_ImageSize[0] + m_NumberOfChannels * index[0];
for(unsigned int i=0; i<m_NumberOfChannels; ++i)
{
lPix[i] = static_cast<OutputPixelType>(m_Buffer[cpt+i]);
}
it.Set( lPix );
++it;
}
}
m_Writer->SetInput( lImage );
m_Writer->Update();
}
template<class TBufferType, class TOutputPixelType>
void
ScalarBufferToImageFileWriter<TBufferType, TOutputPixelType>
::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "FileName" << m_Writer->GetFileName() << std::endl;
os << indent << "Size" << m_ImageSize << std::endl;
os << indent << "NumberOfChannels" << m_NumberOfChannels << std::endl;
}
} // end namespace otb
#endif
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