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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkScalarToArrayCastImageFilter.txx,v $
Language: C++
Date: $Date: 2003-09-10 14:28:56 $
Version: $Revision: 1.3 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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 _itkScalarToArrayCastImageFilter_txx
#define _itkScalarToArrayCastImageFilter_txx
#include "itkScalarToArrayCastImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkProgressReporter.h"
#include "itkPixelTraits.h"
namespace itk
{
/**
* Constructor
*/
template <class TInputImage, class TOutputImage >
ScalarToArrayCastImageFilter<TInputImage,TOutputImage>
::ScalarToArrayCastImageFilter()
{
this->SetNumberOfRequiredInputs
( PixelTraits< OutputImagePixelType >::Dimension );
}
/**
* ThreadedGenerateData Performs the pixel-wise addition
*/
template <class TInputImage, class TOutputImage >
void
ScalarToArrayCastImageFilter<TInputImage,TOutputImage>
::ThreadedGenerateData( const OutputImageRegionType &outputRegionForThread,
int threadId)
{
unsigned int length =
PixelTraits< OutputImagePixelType >::Dimension ;
std::vector< const TInputImage* > inputs ;
std::vector< ImageRegionConstIterator< TInputImage > > i_iters ;
for ( unsigned int i = 0 ; i < length ; i++ )
{
inputs.push_back(this->GetInput(i)) ;
i_iters.push_back
( ImageRegionConstIterator< TInputImage >
(inputs[i], outputRegionForThread) );
(i_iters[i]).GoToBegin();
}
typename TOutputImage::Pointer outputPtr = this->GetOutput(0);
ImageRegionIterator<TOutputImage> outputIt(outputPtr, outputRegionForThread);
ProgressReporter progress(this,
threadId,
outputRegionForThread.GetNumberOfPixels());
outputIt.GoToBegin();
typename TOutputImage::PixelType arrayPixel ;
while( !outputIt.IsAtEnd() )
{
for ( unsigned int j = 0 ; j < length ; j++ )
{
arrayPixel[j] = (i_iters[j]).Get() ;
++(i_iters[j]);
}
outputIt.Set( arrayPixel );
++outputIt;
progress.CompletedPixel();
}
}
} // end namespace itk
#endif
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