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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkDecimationQuadEdgeMeshFilter_h
#define itkDecimationQuadEdgeMeshFilter_h
#include "itkIntTypes.h"
#include "itkQuadEdgeMeshToQuadEdgeMeshFilter.h"
namespace itk
{
/**
* \class DecimationQuadEdgeMeshFilter
* \brief
* \ingroup ITKQuadEdgeMeshFiltering
*/
template< typename TInput, typename TOutput, typename TCriterion >
class DecimationQuadEdgeMeshFilter:
public QuadEdgeMeshToQuadEdgeMeshFilter< TInput, TOutput >
{
public:
typedef DecimationQuadEdgeMeshFilter Self;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
typedef QuadEdgeMeshToQuadEdgeMeshFilter< TInput, TOutput > Superclass;
/** Run-time type information (and related methods). */
itkTypeMacro(DecimationQuadEdgeMeshFilter, QuadEdgeMeshToQuadEdgeMeshFilter);
typedef TInput InputMeshType;
typedef typename InputMeshType::Pointer InputMeshPointer;
typedef TOutput OutputMeshType;
typedef typename OutputMeshType::Pointer OutputMeshPointer;
typedef TCriterion CriterionType;
typedef typename CriterionType::Pointer CriterionPointer;
typedef typename CriterionType::MeasureType MeasureType;
typedef typename CriterionType::PriorityType PriorityType;
typedef typename CriterionType::PriorityQueueWrapperType PriorityQueueItemType;
itkSetObjectMacro(Criterion, CriterionType);
protected:
DecimationQuadEdgeMeshFilter()
{
this->m_Iteration = 0;
this->m_OutputMesh = ITK_NULLPTR;
}
~DecimationQuadEdgeMeshFilter() ITK_OVERRIDE {}
CriterionPointer m_Criterion;
SizeValueType m_Iteration;
void GenerateData() ITK_OVERRIDE
{
this->CopyInputMeshToOutputMesh();
Initialize();
FillPriorityQueue();
m_Iteration = 0;
this->m_OutputMesh = this->GetOutput();
do
{
this->Extract();
if ( ProcessWithTopologicalGuarantee() )
{
return;
}
++m_Iteration;
}
while ( !IsCriterionSatisfied() );
this->GetOutput()->SqueezePointsIds();
}
virtual void Initialize() {}
virtual void FillPriorityQueue() = 0;
virtual void Extract() = 0;
virtual bool ProcessWithoutAnyTopologicalGuarantee() = 0;
virtual bool ProcessWithTopologicalGuarantee() = 0;
virtual bool IsCriterionSatisfied() = 0;
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Criterion: " << m_Criterion << std::endl;
}
/** Cache pointer to output to use in inner loops */
OutputMeshType *m_OutputMesh;
private:
DecimationQuadEdgeMeshFilter(const Self &);
void operator=(const Self &);
};
}
#endif
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