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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkPathToChainCodePathFilter.txx
Language: C++
Date: $Date$
Version: $Revision$
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 __itkPathToChainCodePathFilter_txx
#define __itkPathToChainCodePathFilter_txx
#include "itkPathToChainCodePathFilter.h"
namespace itk
{
/**
* Constructor
*/
template <class TInputPath, class TOutputChainCodePath>
PathToChainCodePathFilter<TInputPath, TOutputChainCodePath>
::PathToChainCodePathFilter()
{
this->SetNumberOfRequiredInputs( 1 );
m_MaximallyConnected = false;
}
/**
* GenerateData Performs the reflection
*/
template <class TInputPath, class TOutputChainCodePath>
void
PathToChainCodePathFilter<TInputPath, TOutputChainCodePath>
::GenerateData( void )
{
OffsetType offset;
OffsetType tempOffset;
OffsetType zeroOffset;
zeroOffset.Fill(0);
InputPathInputType inputPathInput;
int dimension = OffsetType::GetOffsetDimension();
typename Superclass::InputPathConstPointer inputPtr = this->GetInput();
typename Superclass::OutputPathPointer outputPtr = this->GetOutput(0);
//outputPtr->SetRequestedRegion( inputPtr->GetRequestedRegion() );
//outputPtr->SetBufferedRegion( inputPtr->GetBufferedRegion() );
//outputPtr->SetLargestPossibleRegion( inputPtr->GetLargestPossibleRegion() );
//outputPtr->Allocate(); // Allocate() is an Image function
outputPtr->Clear();
inputPathInput = inputPtr->StartOfInput();
outputPtr->SetStart( inputPtr->EvaluateToIndex( inputPathInput ) );
for(OutputPathInputType outputPathInput=0;;)
{
offset = inputPtr->IncrementInput(inputPathInput);
if( zeroOffset == offset ) { break; }
if( ! m_MaximallyConnected )
{
outputPtr->InsertStep( outputPathInput++, offset );
}
else
{
for( int d=0; d<dimension; d++ )
{
if( offset[d] )
{
tempOffset.Fill(0);
tempOffset[d] = offset[d];
outputPtr->InsertStep( outputPathInput++, tempOffset );
}
}
}
}
}
template <class TInputPath, class TOutputChainCodePath>
void
PathToChainCodePathFilter<TInputPath, TOutputChainCodePath>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
os << indent << "MaximallyConnected: " << m_MaximallyConnected << std::endl;
}
} // end namespace itk
#endif
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