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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkImageFunction.txx,v $
Language: C++
Date: $Date: 2006-08-22 22:25:36 $
Version: $Revision: 1.16 $
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 __itkImageFunction_txx
#define __itkImageFunction_txx
#include "itkImageFunction.h"
namespace itk
{
/**
* Constructor
*/
template <class TInputImage, class TOutput, class TCoordRep>
ImageFunction<TInputImage, TOutput, TCoordRep>
::ImageFunction()
{
m_Image = NULL;
m_StartIndex.Fill(0);
m_EndIndex.Fill(0);
m_StartContinuousIndex.Fill(0.0);
m_EndContinuousIndex.Fill(0.0);
}
/**
* Standard "PrintSelf" method
*/
template <class TInputImage, class TOutput, class TCoordRep>
void
ImageFunction<TInputImage, TOutput, TCoordRep>
::PrintSelf(
std::ostream& os,
Indent indent) const
{
Superclass::PrintSelf( os, indent );
os << indent << "InputImage: " << m_Image.GetPointer() << std::endl;
os << indent << "StartIndex: " << m_StartIndex << std::endl;
os << indent << "EndIndex: " << m_EndIndex << std::endl;
os << indent << "StartContinuousIndex: " << m_StartContinuousIndex << std::endl;
os << indent << "EndContinuousIndex: " << m_EndContinuousIndex << std::endl;
}
/**
* Initialize by setting the input image
*/
template <class TInputImage, class TOutput, class TCoordRep>
void
ImageFunction<TInputImage, TOutput, TCoordRep>
::SetInputImage(
const InputImageType * ptr )
{
// set the input image
m_Image = ptr;
if ( ptr )
{
typedef typename IndexType::IndexValueType IndexValueType;
typename InputImageType::SizeType size = ptr->GetBufferedRegion().GetSize();
m_StartIndex = ptr->GetBufferedRegion().GetIndex();
for ( unsigned int j = 0; j < ImageDimension; j++ )
{
m_EndIndex[j] = m_StartIndex[j] +
static_cast<IndexValueType>( size[j] ) - 1;
m_StartContinuousIndex[j] = static_cast<CoordRepType>( m_StartIndex[j] );
m_EndContinuousIndex[j] = static_cast<CoordRepType>( m_EndIndex[j] );
}
}
}
} // end namespace itk
#endif
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