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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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 ITK_TEMPLATE_EXPORT DecimationQuadEdgeMeshFilter : public QuadEdgeMeshToQuadEdgeMeshFilter<TInput, TOutput>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(DecimationQuadEdgeMeshFilter);
using Self = DecimationQuadEdgeMeshFilter;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using Superclass = QuadEdgeMeshToQuadEdgeMeshFilter<TInput, TOutput>;
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(DecimationQuadEdgeMeshFilter);
using InputMeshType = TInput;
using InputMeshPointer = typename InputMeshType::Pointer;
using OutputMeshType = TOutput;
using OutputMeshPointer = typename OutputMeshType::Pointer;
using CriterionType = TCriterion;
using CriterionPointer = typename CriterionType::Pointer;
using MeasureType = typename CriterionType::MeasureType;
using PriorityType = typename CriterionType::PriorityType;
using PriorityQueueItemType = typename CriterionType::PriorityQueueWrapperType;
itkSetObjectMacro(Criterion, CriterionType);
protected:
DecimationQuadEdgeMeshFilter()
{
this->m_Iteration = 0;
this->m_OutputMesh = nullptr;
}
~DecimationQuadEdgeMeshFilter() override = default;
CriterionPointer m_Criterion{};
SizeValueType m_Iteration{};
void
GenerateData() 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();
this->GetOutput()->DeleteUnusedCellData();
}
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 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{};
};
} // namespace itk
#endif
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