#include <itkImageRegionSplitterBase.h>

Detailed Description

Divide an image region into several pieces.

ImageRegionSplitterBase is an abstract interface to divide an ImageRegion into smaller regions. ImageRegionSplitterBase is used by the ImageSource, StreamingImageFilter, streaming ImageIO classes to divide a region into a series of smaller subregions.

This object has two basic methods: GetNumberOfSplits() and GetSplit().

GetNumberOfSplits() is used to determine how may subregions a given region can be divided. You call GetNumberOfSplits with an argument that is the number of subregions you want. If the image region can support that number of subregions, that number is returned. Otherwise, the maximum number of splits less then or equal to the argument be returned. For example, if a region splitter class only divides a region into horizontal slabs, then the maximum number of splits will be the number of rows in the region.

GetSplit() returns the ith of N subregions (as an ImageRegion object).

See also: ImageRegionSplitterDirection; ImageRegionSplitterSlowDimension

Definition at line 58 of file itkImageRegionSplitterBase.h.

Inheritance diagram for itk::ImageRegionSplitterBase:

Collaboration diagram for itk::ImageRegionSplitterBase:

Public Types
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = ImageRegionSplitterBase

using	Superclass = Object

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

using	Pointer = SmartPointer< Self >

using	Self = Object

using	Superclass = LightObject

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

using	Pointer = SmartPointer< Self >

using	Self = LightObject

Public Member Functions
const char *	GetNameOfClass () const override

unsigned int	GetSplit (unsigned int i, unsigned int numberOfPieces, ImageIORegion &region) const

template<unsigned int VImageDimension>
unsigned int	GetSplit (unsigned int i, unsigned int numberOfPieces, ImageRegion< VImageDimension > &region) const


template<unsigned int VImageDimension>
unsigned int	GetNumberOfSplits (const ImageRegion< VImageDimension > &region, unsigned int requestedNumber) const

unsigned int	GetNumberOfSplits (const ImageIORegion &region, unsigned int requestedNumber) const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)

unsigned long	AddObserver (const EventObject &event, Command *) const

unsigned long	AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const

LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

const char *	GetNameOfClass () const override

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetReferenceCount (int) override

void	UnRegister () const noexcept override

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

void	SetMetaDataDictionary (MetaDataDictionary &&rrhs)

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

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

virtual void	Delete ()

virtual int	GetReferenceCount () const

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

Protected Member Functions
virtual unsigned int	GetNumberOfSplitsInternal (unsigned int dim, const IndexValueType regionIndex[], const SizeValueType regionSize[], unsigned int requestedNumber) const =0

virtual unsigned int	GetSplitInternal (unsigned int dim, unsigned int i, unsigned int numberOfPieces, IndexValueType regionIndex[], SizeValueType regionSize[]) const =0

	ImageRegionSplitterBase ()

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

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

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

virtual void	SetTimeStamp (const TimeStamp &timeStamp)

	~Object () override

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::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool val)

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

static Pointer	New ()

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

Member Typedef Documentation

◆ ConstPointer

using itk::ImageRegionSplitterBase::ConstPointer = SmartPointer<const Self>

Definition at line 67 of file itkImageRegionSplitterBase.h.

◆ Pointer

using itk::ImageRegionSplitterBase::Pointer = SmartPointer<Self>

Definition at line 66 of file itkImageRegionSplitterBase.h.

◆ Self

using itk::ImageRegionSplitterBase::Self = ImageRegionSplitterBase

Standard class type aliases.

Definition at line 64 of file itkImageRegionSplitterBase.h.

◆ Superclass

using itk::ImageRegionSplitterBase::Superclass = Object

Definition at line 65 of file itkImageRegionSplitterBase.h.

Constructor & Destructor Documentation

◆ ImageRegionSplitterBase()

itk::ImageRegionSplitterBase::ImageRegionSplitterBase ( )

protected

Member Function Documentation

◆ GetNameOfClass()

const char* itk::ImageRegionSplitterBase::GetNameOfClass ( ) const

overridevirtual

See also: LightObject::GetNameOfClass()

Reimplemented from itk::LightObject.

Reimplemented in itk::ImageRegionSplitterMultidimensional, itk::ImageRegionSplitterSlowDimension, and itk::ImageRegionSplitterDirection.

◆ GetNumberOfSplits() [1/2]

unsigned int itk::ImageRegionSplitterBase::GetNumberOfSplits	(	const ImageIORegion &	region,
		unsigned int	requestedNumber
	)		const

inline

How many pieces can the specified region be split? A given region cannot always be divided into the requested number of pieces. For instance, if the numberOfPieces exceeds the number of pixels along a certain dimensions, then some splits will not be possible. This method returns a number less than or equal to the requested number of pieces.

Definition at line 86 of file itkImageRegionSplitterBase.h.

References itk::ImageIORegion::GetImageDimension(), itk::ImageIORegion::GetIndex(), and itk::ImageIORegion::GetSize().

◆ GetNumberOfSplits() [2/2]

template<unsigned int VImageDimension>

unsigned int itk::ImageRegionSplitterBase::GetNumberOfSplits	(	const ImageRegion< VImageDimension > &	region,
		unsigned int	requestedNumber
	)		const

inline

How many pieces can the specified region be split? A given region cannot always be divided into the requested number of pieces. For instance, if the numberOfPieces exceeds the number of pixels along a certain dimensions, then some splits will not be possible. This method returns a number less than or equal to the requested number of pieces.

Definition at line 80 of file itkImageRegionSplitterBase.h.

References itk::ImageRegion< VImageDimension >::GetIndex(), and itk::ImageRegion< VImageDimension >::GetSize().

◆ GetNumberOfSplitsInternal()

virtual unsigned int itk::ImageRegionSplitterBase::GetNumberOfSplitsInternal	(	unsigned int	dim,
		const IndexValueType	regionIndex[],
		const SizeValueType	regionSize[],
		unsigned int	requestedNumber
	)		const

protectedpure virtual

Templateless method to compute the number of possible splits for any number of dimensions.

Implemented in itk::ImageRegionSplitterMultidimensional, itk::ImageRegionSplitterSlowDimension, and itk::ImageRegionSplitterDirection.

◆ GetSplit() [1/2]

unsigned int itk::ImageRegionSplitterBase::GetSplit	(	unsigned int	i,
		unsigned int	numberOfPieces,
		ImageIORegion &	region
	)		const

inline

Definition at line 113 of file itkImageRegionSplitterBase.h.

References itk::ImageIORegion::GetImageDimension(), itk::ImageIORegion::GetModifiableIndex(), and itk::ImageIORegion::GetModifiableSize().

◆ GetSplit() [2/2]

template<unsigned int VImageDimension>

unsigned int itk::ImageRegionSplitterBase::GetSplit	(	unsigned int	i,
		unsigned int	numberOfPieces,
		ImageRegion< VImageDimension > &	region
	)		const

inline

Get a region definition that represents the ith piece a specified region.

The numberOfPieces must be equal to what GetNumberOfSplits() returns. The return value is the maximum number of splits available. If i is greater than or equal to the return value the value of the region is undefined.

Definition at line 104 of file itkImageRegionSplitterBase.h.

References itk::ImageRegion< VImageDimension >::GetModifiableIndex(), and itk::ImageRegion< VImageDimension >::GetModifiableSize().

◆ GetSplitInternal()

virtual unsigned int itk::ImageRegionSplitterBase::GetSplitInternal	(	unsigned int	dim,
		unsigned int	i,
		unsigned int	numberOfPieces,
		IndexValueType	regionIndex[],
		SizeValueType	regionSize[]
	)		const

protectedpure virtual

Templateless method to compute an actual split for any number of dimensions. dim is the size of the regionIndex and regionSize arrays.

Implemented in itk::ImageRegionSplitterMultidimensional, itk::ImageRegionSplitterSlowDimension, and itk::ImageRegionSplitterDirection.

◆ PrintSelf()

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

overrideprotectedvirtual

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::LightObject.

Reimplemented in itk::ImageRegionSplitterMultidimensional, and itk::ImageRegionSplitterDirection.

The documentation for this class was generated from the following file:

itkImageRegionSplitterBase.h

Detailed Description

Public Types

Public Member Functions

Protected Member Functions

Additional Inherited Members

Member Typedef Documentation

◆ ConstPointer

◆ Pointer

◆ Self

◆ Superclass

Constructor & Destructor Documentation

◆ ImageRegionSplitterBase()

Member Function Documentation

◆ GetNameOfClass()

◆ GetNumberOfSplits() [1/2]

◆ GetNumberOfSplits() [2/2]

◆ GetNumberOfSplitsInternal()

◆ GetSplit() [1/2]

◆ GetSplit() [2/2]

◆ GetSplitInternal()

◆ PrintSelf()