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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkBinaryMaskToNarrowBandPointSetFilter.txx,v $
Language: C++
Date: $Date: 2006-03-19 04:36:56 $
Version: $Revision: 1.4 $
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 _itkBinaryMaskToNarrowBandPointSetFilter_txx
#define _itkBinaryMaskToNarrowBandPointSetFilter_txx
#include "itkBinaryMaskToNarrowBandPointSetFilter.h"
#include "itkNumericTraits.h"
#include "itkProgressReporter.h"
namespace itk
{
/**
*
*/
template <class TInputImage, class TOutputMesh>
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::BinaryMaskToNarrowBandPointSetFilter()
{
// Modify superclass default values, can be overridden by subclasses
this->SetNumberOfRequiredInputs(1);
m_BandWidth = 5;
m_DistanceFilter = DistanceFilterType::New();
m_RescaleFilter = RescaleFilterType::New();
m_RescaleFilter->SetOutputMinimum( -0.5 );
m_RescaleFilter->SetOutputMaximum( 0.5 );
m_DistanceFilter->SetInput( m_RescaleFilter->GetOutput() );
m_DistanceFilter->NarrowBandingOn();
m_DistanceFilter->SetNarrowBandwidth( m_BandWidth );
PointDataContainerPointer pointData = PointDataContainer::New();
OutputMeshPointer mesh = this->GetOutput();
mesh->SetPointData( pointData.GetPointer() );
}
/**
*
*/
template <class TInputImage, class TOutputMesh>
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::~BinaryMaskToNarrowBandPointSetFilter()
{
}
/**
*
*/
template <class TInputImage, class TOutputMesh>
void
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
os << indent << "BandWidth: " << m_BandWidth << std::endl;
}
/**
*
*/
template <class TInputImage, class TOutputMesh>
void
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::GenerateOutputInformation()
{
}
/**
*
*/
template <class TInputImage, class TOutputMesh>
void
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::SetInput( const InputImageType * inputImage )
{
// This const_cast is needed due to the lack of
// const-correctness in the ProcessObject.
this->SetNthInput( 0,
const_cast< InputImageType * >( inputImage ) );
}
/**
*
*/
template <class TInputImage, class TOutputMesh>
void
BinaryMaskToNarrowBandPointSetFilter<TInputImage,TOutputMesh>
::GenerateData(void)
{
m_DistanceFilter->SetNarrowBandwidth( m_BandWidth );
m_RescaleFilter->SetInput( this->GetInput(0) );
m_DistanceFilter->Update();
OutputMeshPointer mesh = this->GetOutput();
InputImageConstPointer image = this->GetInput(0);
PointsContainerPointer points = PointsContainer::New();
PointDataContainerPointer pointData = PointDataContainer::New();
NodeContainerPointer nodes = m_DistanceFilter->GetOutputNarrowBand();
unsigned long numberOfPixels = nodes->Size();
ProgressReporter progress(this, 0, numberOfPixels);
typename NodeContainer::ConstIterator nodeItr = nodes->Begin();
typename NodeContainer::ConstIterator lastNode = nodes->End();
PointType point;
while( nodeItr != lastNode )
{
const NodeType & node = nodeItr.Value();
const float distance = node.GetValue();
if( vcl_fabs(distance ) < m_BandWidth )
{
image->TransformIndexToPhysicalPoint( node.GetIndex(), point );
points->push_back( point );
pointData->push_back( distance );
}
++nodeItr;
progress.CompletedPixel();
}
mesh->SetPoints( points );
mesh->SetPointData( pointData );
// This indicates that the current BufferedRegion is equal to the
// requested region. This action prevents useless rexecutions of
// the pipeline.
mesh->SetBufferedRegion( mesh->GetRequestedRegion() );
}
} // end namespace itk
#endif
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