#include <itkFiniteDifferenceSparseImageFunction.h>

Inheritance diagram for itk::FiniteDifferenceSparseImageFunction< TSparseImageType >:

Collaboration diagram for itk::FiniteDifferenceSparseImageFunction< TSparseImageType >:

Detailed Description

template<typename TSparseImageType>
class itk::FiniteDifferenceSparseImageFunction< TSparseImageType >

This is the base class for function classes that can be used with filters derived from FiniteDifferenceSparseImageFilter.

This class is derived from FiniteDifferenceFunction. It is designed to: work with neighborhoods of pointers instead of actual data. Towards this purpose ComputeUpdate method is no longer used and is replaced by the ComputeSparseUpdate method. ComputeSparseUpdate assumes that the pointers are associated with structures that have the member variable m_Data. The pointers would normally originate from a SparseImage object.

The PrecomputeSparseUpdate method can be defined to do a first pass of: computations which then can be used by ComputeSparseUpdate. If PrecomputeSparseUpdate is used then the m_PrecomputeFlag should be set in the FiniteDifferenceSparseImageFilter class. The precomputation step can be used to speed up computation by avoiding repetitions. See the NormalVectorDiffusionFunction for an example.

Definition at line 47 of file itkFiniteDifferenceSparseImageFunction.h.

Public Types
using	ConstPointer = SmartPointer< const Self >

using	FloatOffsetType = typename Superclass::FloatOffsetType

using	IndexType = typename SparseImageType::IndexType

using	NeighborhoodType = typename Superclass::NeighborhoodType

using	NodeDataType = typename NodeType::NodeDataType

using	NodeType = typename SparseImageType::NodeType

using	PixelType = typename Superclass::PixelType

using	Pointer = SmartPointer< Self >

using	RadiusType = typename Superclass::RadiusType

using	Self = FiniteDifferenceSparseImageFunction

using	SparseImageType = typename Superclass::ImageType

using	Superclass = FiniteDifferenceFunction< TSparseImageType >

using	TimeStepType = typename Superclass::TimeStepType

Public Types inherited from itk::FiniteDifferenceFunction< TSparseImageType >
using	ConstPointer = SmartPointer< const Self >

using	DefaultBoundaryConditionType = ZeroFluxNeumannBoundaryCondition< ImageType >

using	FloatOffsetType = Vector< float, Self::ImageDimension >

using	ImageType = TSparseImageType

using	NeighborhoodScalesType = Vector< PixelRealType, Self::ImageDimension >

using	NeighborhoodType = ConstNeighborhoodIterator< TSparseImageType, DefaultBoundaryConditionType >

using	PixelRealType = double

using	PixelType = typename ImageType::PixelType

using	Pointer = SmartPointer< Self >

using	RadiusType = typename ConstNeighborhoodIterator< TSparseImageType >::RadiusType

using	Self = FiniteDifferenceFunction

using	Superclass = LightObject

using	TimeStepType = double

Public Types inherited from itk::LightObject
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = LightObject

Public Member Functions
virtual NodeDataType	ComputeSparseUpdate (NeighborhoodType &neighborhood, void *globalData, const FloatOffsetType &offset=FloatOffsetType(0.0)) const =0

PixelType	ComputeUpdate (const NeighborhoodType &, void *, const FloatOffsetType &) override

virtual const char *	GetNameOfClass () const

virtual void	PrecomputeSparseUpdate (NeighborhoodType &) const

Public Member Functions inherited from itk::FiniteDifferenceFunction< TSparseImageType >
virtual TimeStepType	ComputeGlobalTimeStep (void *GlobalData) const =0

const NeighborhoodScalesType	ComputeNeighborhoodScales () const

virtual PixelType	ComputeUpdate (const NeighborhoodType &neighborhood, void *globalData, const FloatOffsetType &offset=FloatOffsetType(0.0))=0

virtual void *	GetGlobalDataPointer () const =0

const RadiusType &	GetRadius () const

void	GetScaleCoefficients (PixelRealType vals[ImageDimension]) const

virtual void	InitializeIteration ()

virtual void	ReleaseGlobalDataPointer (void *GlobalData) const =0

void	SetRadius (const RadiusType &r)

void	SetScaleCoefficients (PixelRealType vals[ImageDimension])

Public Member Functions inherited from itk::LightObject
virtual Pointer	CreateAnother () const

virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

void	Print (std::ostream &os, Indent indent=0) const

virtual void	Register () const

virtual void	SetReferenceCount (int)

virtual void	UnRegister () const noexcept

Static Public Attributes
static constexpr unsigned int	ImageDimension = Superclass::ImageDimension

Static Public Attributes inherited from itk::FiniteDifferenceFunction< TSparseImageType >
static constexpr unsigned int	ImageDimension

Protected Member Functions
	FiniteDifferenceSparseImageFunction ()=default

void	PrintSelf (std::ostream &os, Indent indent) const override

	~FiniteDifferenceSparseImageFunction () override=default

Protected Member Functions inherited from itk::FiniteDifferenceFunction< TSparseImageType >
	FiniteDifferenceFunction ()

void	PrintSelf (std::ostream &os, Indent indent) const override

	~FiniteDifferenceFunction () override=default

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Additional Inherited Members
Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Attributes inherited from itk::FiniteDifferenceFunction< TSparseImageType >
RadiusType	m_Radius

PixelRealType	m_ScaleCoefficients [ImageDimension]

Protected Attributes inherited from itk::LightObject
std::atomic< int >	m_ReferenceCount