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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 itkFastMarchingNumberOfElementsStoppingCriterion_h
#define itkFastMarchingNumberOfElementsStoppingCriterion_h
#include "itkFastMarchingStoppingCriterionBase.h"
#include "itkObjectFactory.h"
namespace itk
{
/**
* \class FastMarchingNumberOfElementsStoppingCriterion
* \brief Stopping Criterion is verified when Current Number of Elements is equal
* to or greater than the provided Target Number Of Elements.
*
* \note For itk::Image, one element is one pixel. So the number of elements is directly
* linked to the physical size of the object, i.e.
* \f$ PhysicalSize = TargetNumberOfElements \cdot \prod_{i=1}{dim} Spacing_{i} \f$
*
* \note For itk::QuadEdgeMesh, one element is one vertex.
*
* \ingroup ITKFastMarching
*/
template <typename TInput, typename TOutput>
class ITK_TEMPLATE_EXPORT FastMarchingNumberOfElementsStoppingCriterion
: public FastMarchingStoppingCriterionBase<TInput, TOutput>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(FastMarchingNumberOfElementsStoppingCriterion);
using Self = FastMarchingNumberOfElementsStoppingCriterion;
using Superclass = FastMarchingStoppingCriterionBase<TInput, TOutput>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(FastMarchingNumberOfElementsStoppingCriterion);
using typename Superclass::OutputPixelType;
using typename Superclass::NodeType;
/** Get/set the threshold used by the stopping criteria. */
itkSetMacro(TargetNumberOfElements, IdentifierType);
itkGetMacro(TargetNumberOfElements, IdentifierType);
bool
IsSatisfied() const override
{
return (this->m_CurrentNumberOfElements >= this->m_TargetNumberOfElements);
}
std::string
GetDescription() const override
{
return "Current Number of Elements >= Target Number of Elements";
}
protected:
FastMarchingNumberOfElementsStoppingCriterion()
: Superclass()
, m_CurrentNumberOfElements(IdentifierType{})
, m_TargetNumberOfElements(IdentifierType{})
{}
~FastMarchingNumberOfElementsStoppingCriterion() override = default;
IdentifierType m_CurrentNumberOfElements{};
IdentifierType m_TargetNumberOfElements{};
void
SetCurrentNode(const NodeType &) override
{
++this->m_CurrentNumberOfElements;
}
void
Reset() override
{
this->m_CurrentNumberOfElements = IdentifierType{};
}
};
} // namespace itk
#endif // itkFastMarchingNumberOfElementsStoppingCriterion_h
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