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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkQuadEdgeMeshCleanFilter.h
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 __itkQuadEdgeMeshCleanFilter_h
#define __itkQuadEdgeMeshCleanFilter_h
#include "itkQuadEdgeMeshToQuadEdgeMeshFilter.h"
#include "itkBoundingBox.h"
#include "itkQuadEdgeMeshSquaredEdgeLengthDecimation.h"
#include "itkQuadEdgeMeshDecimationCriteria.h"
namespace itk
{
/**
* \class QuadEdgeMeshCleanFilter
* \brief
*/
template< class TInput, class TOutput >
class QuadEdgeMeshCleanFilter :
public QuadEdgeMeshToQuadEdgeMeshFilter< TInput, TOutput >
{
public:
typedef QuadEdgeMeshCleanFilter Self;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
typedef QuadEdgeMeshToQuadEdgeMeshFilter< TInput, TOutput > Superclass;
/** Run-time type information (and related methods). */
itkTypeMacro( QuadEdgeMeshCleanFilter, QuadEdgeMeshToQuadEdgeMeshFilter );
/** New macro for creation of through a Smart Pointer */
itkNewMacro( Self );
typedef TInput InputMeshType;
typedef typename Superclass::InputMeshPointer InputMeshPointer;
typedef typename Superclass::InputCoordRepType InputCoordRepType;
typedef typename Superclass::InputPointType InputPointType;
typedef typename Superclass::InputPointIdentifier InputPointIdentifier;
typedef typename Superclass::InputQEPrimal InputQEPrimal;
typedef typename Superclass::InputVectorType InputVectorType;
typedef typename Superclass::InputEdgeCellType InputEdgeCellType;
typedef typename Superclass::InputPolygonCellType InputPolygonCellType;
typedef typename Superclass::InputPointIdList InputPointIdList;
typedef typename Superclass::InputCellTraits InputCellTraits;
typedef typename Superclass::InputPointsIdInternalIterator InputPointsIdInternalIterator;
typedef typename Superclass::InputQEIterator InputQEIterator;
typedef typename InputMeshType::PointsContainer InputPointsContainer;
typedef typename InputMeshType::PointsContainerPointer InputPointsContainerPointer;
typedef typename InputMeshType::PointsContainerIterator InputPointsContainerIterator;
typedef typename InputMeshType::CellsContainerIterator InputCellsContainerIterator;
itkStaticConstMacro( PointDimension, unsigned int, InputMeshType::PointDimension );
typedef TOutput OutputMeshType;
typedef typename Superclass::OutputMeshPointer OutputMeshPointer;
typedef typename Superclass::OutputCoordRepType OutputCoordRepType;
typedef typename Superclass::OutputPointType OutputPointType;
typedef typename Superclass::OutputPointIdentifier OutputPointIdentifier;
typedef typename Superclass::OutputQEPrimal OutputQEPrimal;
typedef typename Superclass::OutputVectorType OutputVectorType;
typedef typename OutputMeshType::QEType OutputQEType;
typedef typename OutputMeshType::PointsContainer OutputPointsContainer;
typedef typename OutputMeshType::PointsContainerPointer OutputPointsContainerPointer;
typedef typename OutputMeshType::PointsContainerIterator OutputPointsContainerIterator;
typedef typename OutputMeshType::CellsContainerIterator OutputCellsContainerIterator;
typedef BoundingBox< InputPointIdentifier, itkGetStaticConstMacro(PointDimension),
InputCoordRepType, InputPointsContainer > BoundingBoxType;
typedef typename BoundingBoxType::Pointer BoundingBoxPointer;
typedef MaxMeasureBoundCriterion< OutputMeshType > CriterionType;
typedef typename CriterionType::Pointer CriterionPointer;
typedef QuadEdgeMeshSquaredEdgeLengthDecimation< InputMeshType,
InputMeshType, CriterionType > DecimationType;
typedef typename DecimationType::Pointer DecimationPointer;
itkSetMacro( AbsoluteTolerance, InputCoordRepType );
itkSetMacro( RelativeTolerance, InputCoordRepType );
protected:
QuadEdgeMeshCleanFilter()
{
this->m_AbsoluteTolerance2 = itk::NumericTraits< InputCoordRepType >::Zero;
this->m_AbsoluteTolerance = itk::NumericTraits< InputCoordRepType >::Zero;
this->m_RelativeTolerance = itk::NumericTraits< InputCoordRepType >::Zero;
}
virtual ~QuadEdgeMeshCleanFilter() {}
InputCoordRepType m_AbsoluteTolerance2;
InputCoordRepType m_AbsoluteTolerance;
InputCoordRepType m_RelativeTolerance;
void GenerateData()
{
InputCoordRepType zeroValue = itk::NumericTraits< InputCoordRepType >::Zero;
if( ( m_AbsoluteTolerance == zeroValue ) && ( m_RelativeTolerance != zeroValue ) )
{
itkAssertOrThrowMacro( ( m_RelativeTolerance > zeroValue ) && ( m_RelativeTolerance < 1. ),
"Relative tolerance out of range" );
BoundingBoxPointer bounding_box = BoundingBoxType::New();
bounding_box->SetPoints( this->GetInput()->GetPoints() );
bounding_box->ComputeBoundingBox();
m_AbsoluteTolerance2 = m_RelativeTolerance * m_RelativeTolerance *
bounding_box->GetDiagonalLength2();
}
if( m_AbsoluteTolerance != zeroValue )
{
m_AbsoluteTolerance2 = m_AbsoluteTolerance * m_AbsoluteTolerance;
}
this->MergePoints();
this->CleanPoints();
}
void MergePoints()
{
OutputMeshPointer output = this->GetOutput();
CriterionPointer criterion = CriterionType::New();
criterion->SetTopologicalChange( false );
criterion->SetMeasureBound( m_AbsoluteTolerance2 );
DecimationPointer decimate = DecimationType::New();
decimate->SetInput( this->GetInput() );
decimate->SetCriterion( criterion );
decimate->Update();
InputMeshPointer temp = decimate->GetOutput();
InputPointsContainerIterator p_it = temp->GetPoints()->Begin();
InputPointsContainerIterator p_end = temp->GetPoints()->End();
OutputPointType pOut;
while( p_it != p_end )
{
pOut.CastFrom( p_it.Value() );
output->SetPoint( p_it.Index(), pOut );
++p_it;
}
// Copy Edge Cells
InputCellsContainerIterator c_it = temp->GetEdgeCells()->Begin();
InputCellsContainerIterator c_end = temp->GetEdgeCells()->End();
InputEdgeCellType* qe;
InputQEPrimal* QEGeom;
while( c_it != c_end )
{
qe = dynamic_cast< InputEdgeCellType* >( c_it.Value());
QEGeom = qe->GetQEGeom( );
output->AddEdgeWithSecurePointList( QEGeom->GetOrigin(),
QEGeom->GetDestination() );
++c_it;
}
// Copy cells
c_it = temp->GetCells()->Begin();
c_end = temp->GetCells()->End();
InputPolygonCellType* pe;
while( c_it != c_end )
{
pe = dynamic_cast< InputPolygonCellType* >( c_it.Value());
if( pe )
{
InputPointIdList points;
for( InputPointsIdInternalIterator pit = pe->InternalPointIdsBegin();
pit != pe->InternalPointIdsEnd( ); ++pit )
{
points.push_back( ( *pit ) );
}
output->AddFaceWithSecurePointList( points );
}
++c_it;
}
}
void CleanPoints()
{
OutputMeshPointer output = this->GetOutput();
OutputPointsContainerIterator p_it = output->GetPoints()->Begin();
OutputPointsContainerIterator p_end = output->GetPoints()->End();
OutputPointIdentifier id( 0 );
while( p_it != p_end )
{
id = p_it->Index();
if( output->FindEdge( id ) == 0 )
{
output->DeletePoint( id );
}
++p_it;
}
output->SqueezePointsIds( );
}
private:
QuadEdgeMeshCleanFilter( const Self& );
void operator = ( const Self& );
};
}
#endif
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