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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkCorrespondenceDataStructureIterator.txx,v $
Language: C++
Date: $Date: 2006-03-19 23:23:19 $
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 __itkCorrespondenceDataStructureIterator_txx
#define __itkCorrespondenceDataStructureIterator_txx
#include "itkCorrespondenceDataStructureIterator.h"
namespace itk
{
/** Constructor. Initializes iterators, pointers, and m_IsAtEnd. */
template <typename TStructureType>
CorrespondenceDataStructureIterator<TStructureType>
::CorrespondenceDataStructureIterator(TStructureType *StructurePtr)
{
m_Structure = StructurePtr;
m_NodeListPointer = StructurePtr->m_NodeList;
m_NodeListIterator = m_NodeListPointer->begin();
m_SecondaryListPointer = &(*m_NodeListIterator);
m_SecondaryListIterator = m_SecondaryListPointer->begin();
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
m_IsAtEnd = false;
}
/** Destructor. */
template <typename TStructureType>
CorrespondenceDataStructureIterator<TStructureType>
::~CorrespondenceDataStructureIterator()
{
}
/** Used to verify that the iterator is at the end of the data structure. */
template <typename TStructureType>
bool
CorrespondenceDataStructureIterator<TStructureType>
::IsAtEnd()
{
return m_IsAtEnd;
}
/** Goes to the next corresponding node clique in the structure,
* moving on to the next base node clique if necessary. */
template <typename TStructureType>
void
CorrespondenceDataStructureIterator<TStructureType>
::GoToNext()
{
m_CorrespondingListIterator++;
if(m_CorrespondingListIterator == m_CorrespondingListPointer->end())
{
m_SecondaryListIterator++;
if(m_SecondaryListIterator != m_SecondaryListPointer->end())
{
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
}
else if(m_SecondaryListIterator == m_SecondaryListPointer->end())
{
m_NodeListIterator++;
if(m_NodeListIterator != m_NodeListPointer->end())
{
m_SecondaryListPointer = &(*m_NodeListIterator);
m_SecondaryListIterator = m_SecondaryListPointer->begin();
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
}
else if(m_NodeListIterator == m_NodeListPointer->end())
{
m_IsAtEnd = true;
}
}
}
}
/** Goes to the next base node clique. */
template <typename TStructureType>
void
CorrespondenceDataStructureIterator<TStructureType>
::GoToNextBaseGroup()
{
m_SecondaryListIterator++;
if(m_SecondaryListIterator != m_SecondaryListPointer->end())
{
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
}
else if(m_SecondaryListIterator == m_SecondaryListPointer->end())
{
m_NodeListIterator++;
if(m_NodeListIterator != m_NodeListPointer->end())
{
m_SecondaryListPointer = &(*m_NodeListIterator);
m_SecondaryListIterator = m_SecondaryListPointer->begin();
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
}
else if(m_NodeListIterator == m_NodeListPointer->end())
{
m_IsAtEnd = true;
}
}
}
/** Resets the iterator to the default settings/placement.*/
template <typename TStructureType>
void
CorrespondenceDataStructureIterator<TStructureType>
::Reset()
{
m_IsAtEnd = false;
m_NodeListPointer = m_Structure->m_NodeList;
m_NodeListIterator = m_NodeListPointer->begin();
m_SecondaryListPointer = &(*m_NodeListIterator);
m_SecondaryListIterator = m_SecondaryListPointer->begin();
m_CorrespondingListPointer = &(*m_SecondaryListIterator);
m_CorrespondingListIterator = m_CorrespondingListPointer->begin();
}
} // end namespace itk
#endif
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