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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 itkFastMarchingExtensionImageFilterBase_h
#define itkFastMarchingExtensionImageFilterBase_h
#include "itkFastMarchingImageFilterBase.h"
#include "itkVectorContainer.h"
namespace itk
{
/**
* \class FastMarchingExtensionImageFilterBase
* \brief Extend auxiliary variables smoothly using Fast Marching.
*
* Fast marching can be used to extend auxiliary variables smoothly
* from the zero level set. Starting from an initial position on the
* front, this class simultaneously calculate the signed distance and
* extend a set of auxiliary values.
*
* This class is templated over the level set image type, the auxiliary
* variable type and the number of auxiliary variables to extended. The initial
* front is specified by two containers: one containing the known points
* and one containing the trial points. The auxiliary variables on the front
* are represented by two auxiliary variable containers: one containing
* the value of the variables at the know points and on containing the
* value of the variables at the trail points.
*
* Implementation of this class is based on Chapter 11 of
* "Level Set Methods and Fast Marching Methods", J.A. Sethian,
* Cambridge Press, Second edition, 1999.
*
* For an alternative implementation, see itk::FastMarchingExtensionImageFilter.
*
* \sa FastMarchingExtensionImageFilter
* \sa FastMarchingImageFilter
* \sa LevelSetTypeDefault
* \sa AuxVarTypeDefault
*
* \ingroup LevelSetSegmentation
* \ingroup ITKFastMarching
*/
template <typename TInput, typename TOutput, typename TAuxValue, unsigned int VAuxDimension>
class ITK_TEMPLATE_EXPORT FastMarchingExtensionImageFilterBase : public FastMarchingImageFilterBase<TInput, TOutput>
{
public:
ITK_DISALLOW_COPY_AND_MOVE(FastMarchingExtensionImageFilterBase);
/** Standard class typedefs. */
using Self = FastMarchingExtensionImageFilterBase;
using Superclass = FastMarchingImageFilterBase<TInput, TOutput>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
using typename Superclass::Traits;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(FastMarchingExtensionImageFilterBase);
/** The dimension of the level set. */
static constexpr unsigned int ImageDimension = Superclass::ImageDimension;
/** Number of auxiliary variables to be extended. */
static constexpr unsigned int AuxDimension = VAuxDimension;
/** AuxVarType type alias support */
using AuxValueType = TAuxValue;
using AuxValueVectorType = Vector<AuxValueType, AuxDimension>;
using AuxValueContainerType = VectorContainer<IdentifierType, AuxValueVectorType>;
using AuxValueContainerPointer = typename AuxValueContainerType::Pointer;
using AuxValueContainerConstIterator = typename AuxValueContainerType::ConstIterator;
using AuxImageType = Image<AuxValueType, ImageDimension>;
using AuxImagePointer = typename AuxImageType::Pointer;
/** Index type alias support */
using typename Superclass::NodeType;
using typename Superclass::NodePairType;
// using typename Superclass::NodeContainerType;
// using typename Superclass::NodeContainerPointer;
// using typename Superclass::NodeContainerConstIterator;
using typename Superclass::NodePairContainerType;
using typename Superclass::NodePairContainerPointer;
using typename Superclass::NodePairContainerConstIterator;
using typename Superclass::OutputImageType;
using typename Superclass::OutputPixelType;
using typename Superclass::InternalNodeStructure;
/** Get one of the extended auxiliary variable image. */
AuxImageType *
GetAuxiliaryImage(const unsigned int idx);
/** Set the container auxiliary values at the initial alive points. */
itkSetObjectMacro(AuxiliaryAliveValues, AuxValueContainerType);
itkGetModifiableObjectMacro(AuxiliaryAliveValues, AuxValueContainerType);
/** Set the container of auxiliary values at the initial trial points. */
itkSetObjectMacro(AuxiliaryTrialValues, AuxValueContainerType);
itkGetModifiableObjectMacro(AuxiliaryTrialValues, AuxValueContainerType);
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro(AuxValueHasNumericTraitsCheck, (Concept::HasNumericTraits<TAuxValue>));
// End concept checking
#endif
protected:
FastMarchingExtensionImageFilterBase();
~FastMarchingExtensionImageFilterBase() override = default;
void
PrintSelf(std::ostream & os, Indent indent) const override;
void
InitializeOutput(OutputImageType *) override;
void
UpdateValue(OutputImageType * oImage, const NodeType & iNode) override;
/** Generate the output image meta information */
void
GenerateOutputInformation() override;
void
EnlargeOutputRequestedRegion(DataObject * output) override;
AuxValueContainerPointer m_AuxiliaryAliveValues{};
AuxValueContainerPointer m_AuxiliaryTrialValues{};
private:
AuxImageType * m_AuxImages[VAuxDimension]{};
};
} // namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
# include "itkFastMarchingExtensionImageFilterBase.hxx"
#endif
#endif
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