Sparse, independent coordinate storage for N-way arrays. More...

#include <vtkSparseArray.h>

Inheritance diagram for vtkSparseArray< T >:

Collaboration diagram for vtkSparseArray< T >:

Public Types
typedef vtkArray::CoordinateT	CoordinateT

typedef vtkArray::DimensionT	DimensionT

typedef vtkArray::SizeT	SizeT

Public Types inherited from vtkTypedArray< T >
typedef vtkArray::CoordinateT	CoordinateT

typedef vtkArray::SizeT	SizeT

Public Types inherited from vtkArray
enum	{ DENSE = 0 , SPARSE = 1 }

typedef vtkObject	Superclass

typedef vtkArrayExtents::CoordinateT	CoordinateT

typedef vtkArrayExtents::DimensionT	DimensionT

typedef vtkArrayExtents::SizeT	SizeT

Public Member Functions
	vtkTemplateTypeMacro (vtkSparseArray< T >, vtkTypedArray< T >)

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

bool	IsDense () override
	Returns true iff the underlying array storage is "dense", i.e.

const vtkArrayExtents &	GetExtents () override
	Returns the extents (the number of dimensions and size along each dimension) of the array.

SizeT	GetNonNullSize () override
	Returns the number of non-null values stored in the array.

void	GetCoordinatesN (const SizeT n, vtkArrayCoordinates &coordinates) override
	Returns the coordinates of the n-th value in the array, where n is in the range [0, GetNonNullSize()).

vtkArray *	DeepCopy () override
	Returns a new array that is a deep copy of this array.

const T &	GetValue (CoordinateT i) override
	Returns the value stored in the array at the given coordinates.

const T &	GetValue (CoordinateT i, CoordinateT j) override
	Returns the value stored in the array at the given coordinates.

const T &	GetValue (CoordinateT i, CoordinateT j, CoordinateT k) override
	Returns the value stored in the array at the given coordinates.

const T &	GetValue (const vtkArrayCoordinates &coordinates) override
	Returns the value stored in the array at the given coordinates.

const T &	GetValueN (const SizeT n) override
	Returns the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

void	SetValue (CoordinateT i, const T &value) override
	Overwrites the value stored in the array at the given coordinates.

void	SetValue (CoordinateT i, CoordinateT j, const T &value) override
	Overwrites the value stored in the array at the given coordinates.

void	SetValue (CoordinateT i, CoordinateT j, CoordinateT k, const T &value) override
	Overwrites the value stored in the array at the given coordinates.

void	SetValue (const vtkArrayCoordinates &coordinates, const T &value) override
	Overwrites the value stored in the array at the given coordinates.

void	SetValueN (const SizeT n, const T &value) override
	Overwrites the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

void	SetNullValue (const T &value)
	Set the value that will be returned by GetValue() for nullptr areas of the array.

const T &	GetNullValue ()
	Returns the value that will be returned by GetValue() for nullptr areas of the array.

void	Clear ()
	Remove all non-null elements from the array, leaving the number of dimensions, the extent of each dimension, and the label for each dimension unchanged.

void	Sort (const vtkArraySort &sort)
	Sorts array values so that their coordinates appear in some well-defined order.

std::vector< CoordinateT >	GetUniqueCoordinates (DimensionT dimension)
	Returns the set of unique coordinates along the given dimension.

const CoordinateT *	GetCoordinateStorage (DimensionT dimension) const
	Return a read-only reference to the underlying coordinate storage.

CoordinateT *	GetCoordinateStorage (DimensionT dimension)
	Return a mutable reference to the underlying coordinate storage.

const T *	GetValueStorage () const
	Return a read-only reference to the underlying value storage.

T *	GetValueStorage ()
	Return a mutable reference to the underlying value storage.

void	ReserveStorage (const SizeT value_count)
	Reserve storage for a specific number of values.

void	SetExtentsFromContents ()
	Update the array extents to match its contents, so that the extent along each dimension matches the maximum index value along that dimension.

void	SetExtents (const vtkArrayExtents &extents)
	Specify arbitrary array extents, without altering the contents of the array.

bool	Validate ()
	Validate the contents of the array, returning false if there are any problems.


void	AddValue (CoordinateT i, const T &value)
	Adds a new non-null element to the array.

void	AddValue (CoordinateT i, CoordinateT j, const T &value)
	Adds a new non-null element to the array.

void	AddValue (CoordinateT i, CoordinateT j, CoordinateT k, const T &value)
	Adds a new non-null element to the array.

void	AddValue (const vtkArrayCoordinates &coordinates, const T &value)
	Adds a new non-null element to the array.

Public Member Functions inherited from vtkTypedArray< T >
	vtkTemplateTypeMacro (vtkTypedArray< T >, vtkArray)

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

vtkVariant	GetVariantValue (const vtkArrayCoordinates &coordinates) override
	Returns the value stored in the array at the given coordinates.

vtkVariant	GetVariantValueN (const SizeT n) override
	Returns the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

void	SetVariantValue (const vtkArrayCoordinates &coordinates, const vtkVariant &value) override
	Overwrites the value stored in the array at the given coordinates.

void	SetVariantValueN (const SizeT n, const vtkVariant &value) override
	Overwrites the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

void	CopyValue (vtkArray *source, const vtkArrayCoordinates &source_coordinates, const vtkArrayCoordinates &target_coordinates) override
	Overwrites a value with a value retrieved from another array.

void	CopyValue (vtkArray *source, const SizeT source_index, const vtkArrayCoordinates &target_coordinates) override
	Overwrites a value with a value retrieved from another array.

void	CopyValue (vtkArray *source, const vtkArrayCoordinates &source_coordinates, const SizeT target_index) override
	Overwrites a value with a value retrieved from another array.

virtual const T &	GetValueN (const SizeT n)=0
	Returns the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

virtual void	SetValueN (const SizeT n, const T &value)=0
	Overwrites the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

vtkVariant	GetVariantValue (CoordinateT i)
	Returns the value stored in the array at the given coordinates.

vtkVariant	GetVariantValue (CoordinateT i, CoordinateT j)

vtkVariant	GetVariantValue (CoordinateT i, CoordinateT j, CoordinateT k)

virtual vtkVariant	GetVariantValue (const vtkArrayCoordinates &coordinates)=0
	Returns the value stored in the array at the given coordinates.

void	SetVariantValue (CoordinateT i, const vtkVariant &value)
	Overwrites the value stored in the array at the given coordinates.

void	SetVariantValue (CoordinateT i, CoordinateT j, const vtkVariant &value)

void	SetVariantValue (CoordinateT i, CoordinateT j, CoordinateT k, const vtkVariant &value)

virtual void	SetVariantValue (const vtkArrayCoordinates &coordinates, const vtkVariant &value)=0
	Overwrites the value stored in the array at the given coordinates.

Public Member Functions inherited from vtkArray
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkArray *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

virtual bool	IsDense ()=0
	Returns true iff the underlying array storage is "dense", i.e.

vtkArrayRange	GetExtent (DimensionT dimension)
	Returns the extent (valid coordinate range) along the given dimension.

virtual const vtkArrayExtents &	GetExtents ()=0
	Returns the extents (the number of dimensions and size along each dimension) of the array.

DimensionT	GetDimensions ()
	Returns the number of dimensions stored in the array.

SizeT	GetSize ()
	Returns the number of values stored in the array.

virtual SizeT	GetNonNullSize ()=0
	Returns the number of non-null values stored in the array.

void	SetName (const vtkStdString &name)
	Sets the array name.

vtkStdString	GetName ()
	Returns the array name.

void	SetDimensionLabel (DimensionT i, const vtkStdString &label)
	Sets the label for the i-th array dimension.

vtkStdString	GetDimensionLabel (DimensionT i)
	Returns the label for the i-th array dimension.

virtual void	GetCoordinatesN (const SizeT n, vtkArrayCoordinates &coordinates)=0
	Returns the coordinates of the n-th value in the array, where n is in the range [0, GetNonNullSize()).

virtual vtkVariant	GetVariantValueN (const SizeT n)=0
	Returns the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

virtual void	SetVariantValueN (const SizeT n, const vtkVariant &value)=0
	Overwrites the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

virtual vtkArray *	DeepCopy ()=0
	Returns a new array that is a deep copy of this array.

void	Resize (const CoordinateT i)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const CoordinateT i, const CoordinateT j)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const CoordinateT i, const CoordinateT j, const CoordinateT k)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const vtkArrayRange &i)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const vtkArrayRange &i, const vtkArrayRange &j)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const vtkArrayRange &i, const vtkArrayRange &j, const vtkArrayRange &k)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

void	Resize (const vtkArrayExtents &extents)
	Resizes the array to the given extents (number of dimensions and size of each dimension).

vtkVariant	GetVariantValue (CoordinateT i)
	Returns the value stored in the array at the given coordinates.

vtkVariant	GetVariantValue (CoordinateT i, CoordinateT j)
	Returns the value stored in the array at the given coordinates.

vtkVariant	GetVariantValue (CoordinateT i, CoordinateT j, CoordinateT k)
	Returns the value stored in the array at the given coordinates.

void	SetVariantValue (CoordinateT i, const vtkVariant &value)
	Overwrites the value stored in the array at the given coordinates.

void	SetVariantValue (CoordinateT i, CoordinateT j, const vtkVariant &value)
	Overwrites the value stored in the array at the given coordinates.

void	SetVariantValue (CoordinateT i, CoordinateT j, CoordinateT k, const vtkVariant &value)
	Overwrites the value stored in the array at the given coordinates.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.

int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

int	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

Static Public Member Functions
static vtkSparseArray< T > *	New ()

Static Public Member Functions inherited from vtkArray
static vtkTypeBool	IsTypeOf (const char *type)

static vtkArray *	SafeDownCast (vtkObjectBase *o)

static vtkArray *	CreateArray (int StorageType, int ValueType)
	Creates a new array where StorageType is one of vtkArray::DENSE or vtkArray::SPARSE, and ValueType is one of VTK_CHAR, VTK_UNSIGNED_CHAR, VTK_SHORT, VTK_UNSIGNED_SHORT, VTK_INT, VTK_UNSIGNED_INT, VTK_LONG, VTK_UNSIGNED_LONG, VTK_DOUBLE, VTK_ID_TYPE, or VTK_STRING.

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
	vtkSparseArray ()

	~vtkSparseArray () override

Protected Member Functions inherited from vtkTypedArray< T >
	vtkTypedArray ()=default

	~vtkTypedArray () override=default

Protected Member Functions inherited from vtkArray
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkArray ()

	~vtkArray () override

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

template<typename T>
class vtkSparseArray< T >

Sparse, independent coordinate storage for N-way arrays.

vtkSparseArray is a concrete vtkArray implementation that stores values using sparse independent coordinate storage. This means that the array stores the complete set of coordinates and the value for each non-null value in the array. While this approach requires slightly more storage than other sparse storage schemes (such as Compressed-Row or Compressed-Column), it is easier and more efficient to work with when implementing algorithms, and it generalizes well for arbitrary numbers of dimensions.

In addition to the value retrieval and update methods provided by vtkTypedArray, vtkSparseArray provides methods to:

Get and set a special 'null' value that will be returned when retrieving values for undefined coordinates.

Clear the contents of the array so that every set of coordinates is undefined.

Sort the array contents so that value coordinates can be visited in a specific order.

Retrieve pointers to the value- and coordinate-storage memory blocks.

Reserve storage for a specific number of non-null values, for efficiency when the number of non-null values is known in advance.

Recompute the array extents so that they bound the largest set of non-nullptr values along each dimension.

Specify arbitrary array extents.

Add values to the array in amortized-constant time.

Validate that the array does not contain duplicate coordinates.

See also: vtkArray, vtkTypedArray, vtkDenseArray

Thanks:: Developed by Timothy M. Shead (tshea.nosp@m.d@sa.nosp@m.ndia..nosp@m.gov) at Sandia National Laboratories.

Online Examples:

SparseArray

Definition at line 94 of file vtkSparseArray.h.

Member Typedef Documentation

◆ CoordinateT

template<typename T >

typedef vtkArray::CoordinateT vtkSparseArray< T >::CoordinateT

Definition at line 101 of file vtkSparseArray.h.

◆ DimensionT

template<typename T >

typedef vtkArray::DimensionT vtkSparseArray< T >::DimensionT

Definition at line 102 of file vtkSparseArray.h.

◆ SizeT

template<typename T >

typedef vtkArray::SizeT vtkSparseArray< T >::SizeT

Definition at line 103 of file vtkSparseArray.h.

Constructor & Destructor Documentation

◆ vtkSparseArray()

template<typename T >

vtkSparseArray< T >::vtkSparseArray ( )

protected

◆ ~vtkSparseArray()

template<typename T >

vtkSparseArray< T >::~vtkSparseArray ( )

overrideprotected

Member Function Documentation

◆ vtkTemplateTypeMacro()

template<typename T >

vtkSparseArray< T >::vtkTemplateTypeMacro	(	vtkSparseArray< T >	,
		vtkTypedArray< T >
	)

◆ New()

template<typename T >

static vtkSparseArray< T > * vtkSparseArray< T >::New ( )

static

◆ PrintSelf()

template<typename T >

void vtkSparseArray< T >::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

overridevirtual

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 vtkArray.

◆ IsDense()

template<typename T >

bool vtkSparseArray< T >::IsDense ( )

overridevirtual

Returns true iff the underlying array storage is "dense", i.e.

that GetSize() and GetNonNullSize() will always return the same value. If not, the array is "sparse".

Implements vtkArray.

◆ GetExtents()

template<typename T >

const vtkArrayExtents & vtkSparseArray< T >::GetExtents ( )

overridevirtual

Returns the extents (the number of dimensions and size along each dimension) of the array.

Implements vtkArray.

◆ GetNonNullSize()

template<typename T >

SizeT vtkSparseArray< T >::GetNonNullSize ( )

overridevirtual

Returns the number of non-null values stored in the array.

Note that this value will equal GetSize() for dense arrays, and will be less-than-or-equal to GetSize() for sparse arrays.

Implements vtkArray.

◆ GetCoordinatesN()

template<typename T >

void vtkSparseArray< T >::GetCoordinatesN	(	const SizeT	n,
		vtkArrayCoordinates &	coordinates
	)

overridevirtual

Returns the coordinates of the n-th value in the array, where n is in the range [0, GetNonNullSize()).

Note that the order in which coordinates are visited is undefined, but is guaranteed to match the order in which values are visited using vtkTypedArray::GetValueN() and vtkTypedArray::SetValueN().

Implements vtkArray.

◆ DeepCopy()

template<typename T >

vtkArray * vtkSparseArray< T >::DeepCopy ( )

overridevirtual

Returns a new array that is a deep copy of this array.

Implements vtkArray.

◆ GetValue() [1/4]

template<typename T >

const T & vtkSparseArray< T >::GetValue ( CoordinateT i )

overridevirtual

Returns the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ GetValue() [2/4]

template<typename T >

const T & vtkSparseArray< T >::GetValue	(	CoordinateT	i,
		CoordinateT	j
	)

overridevirtual

Returns the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ GetValue() [3/4]

template<typename T >

const T & vtkSparseArray< T >::GetValue	(	CoordinateT	i,
		CoordinateT	j,
		CoordinateT	k
	)

overridevirtual

Returns the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ GetValue() [4/4]

template<typename T >

const T & vtkSparseArray< T >::GetValue ( const vtkArrayCoordinates & coordinates )

overridevirtual

Returns the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ GetValueN()

template<typename T >

const T & vtkSparseArray< T >::GetValueN ( const SizeT n )

overridevirtual

Returns the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

This is useful for efficiently visiting every value in the array. Note that the order in which values are visited is undefined, but is guaranteed to match the order used by vtkArray::GetCoordinatesN().

Implements vtkTypedArray< T >.

◆ SetValue() [1/4]

template<typename T >

void vtkSparseArray< T >::SetValue	(	CoordinateT	i,
		const T &	value
	)

overridevirtual

Overwrites the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ SetValue() [2/4]

template<typename T >

void vtkSparseArray< T >::SetValue	(	CoordinateT	i,
		CoordinateT	j,
		const T &	value
	)

overridevirtual

Overwrites the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ SetValue() [3/4]

template<typename T >

void vtkSparseArray< T >::SetValue	(	CoordinateT	i,
		CoordinateT	j,
		CoordinateT	k,
		const T &	value
	)

overridevirtual

Overwrites the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ SetValue() [4/4]

template<typename T >

void vtkSparseArray< T >::SetValue	(	const vtkArrayCoordinates &	coordinates,
		const T &	value
	)

overridevirtual

Overwrites the value stored in the array at the given coordinates.

Note that the number of dimensions in the supplied coordinates must match the number of dimensions in the array.

Implements vtkTypedArray< T >.

◆ SetValueN()

template<typename T >

void vtkSparseArray< T >::SetValueN	(	const SizeT	n,
		const T &	value
	)

overridevirtual

Overwrites the n-th value stored in the array, where n is in the range [0, GetNonNullSize()).

This is useful for efficiently visiting every value in the array. Note that the order in which values are visited is undefined, but is guaranteed to match the order used by vtkArray::GetCoordinatesN().

Implements vtkTypedArray< T >.

◆ SetNullValue()

template<typename T >

void vtkSparseArray< T >::SetNullValue ( const T & value )

Set the value that will be returned by GetValue() for nullptr areas of the array.

◆ GetNullValue()

template<typename T >

const T & vtkSparseArray< T >::GetNullValue ( )

Returns the value that will be returned by GetValue() for nullptr areas of the array.

◆ Clear()

template<typename T >

void vtkSparseArray< T >::Clear ( )

Remove all non-null elements from the array, leaving the number of dimensions, the extent of each dimension, and the label for each dimension unchanged.

◆ Sort()

template<typename T >

void vtkSparseArray< T >::Sort ( const vtkArraySort & sort )

Sorts array values so that their coordinates appear in some well-defined order.

The supplied vtkArraySort object controls which dimensions are sorted, and in what order, and should contain one-or-more sort dimensions, up to the number of dimensions stored in the array.

◆ GetUniqueCoordinates()

template<typename T >

std::vector< CoordinateT > vtkSparseArray< T >::GetUniqueCoordinates ( DimensionT dimension )

Returns the set of unique coordinates along the given dimension.

◆ GetCoordinateStorage() [1/2]

template<typename T >

const CoordinateT * vtkSparseArray< T >::GetCoordinateStorage ( DimensionT dimension ) const

Return a read-only reference to the underlying coordinate storage.

Coordinates for each dimension are stored contiguously as a one-dimensional array. The ordering of coordinates within the array depends on the order in which values were added to the array.

◆ GetCoordinateStorage() [2/2]

template<typename T >

CoordinateT * vtkSparseArray< T >::GetCoordinateStorage ( DimensionT dimension )

Return a mutable reference to the underlying coordinate storage.

Coordinates for each dimension are stored contiguously as a one-dimensional array. The ordering of coordinates within the array depends on the order in which values were added to the array, and any subsequent sorting. Use at your own risk!

◆ GetValueStorage() [1/2]

template<typename T >

const T * vtkSparseArray< T >::GetValueStorage ( ) const

Return a read-only reference to the underlying value storage.

Values are stored contiguously, but in arbitrary order. Use GetCoordinateStorage() if you need to get the corresponding coordinates for a value.

◆ GetValueStorage() [2/2]

template<typename T >

T * vtkSparseArray< T >::GetValueStorage ( )

Return a mutable reference to the underlying value storage.

Values are stored contiguously, but in arbitrary order. Use GetCoordinateStorage() if you need to get the corresponding coordinates for a value. Use at your own risk!

◆ ReserveStorage()

template<typename T >

void vtkSparseArray< T >::ReserveStorage ( const SizeT value_count )

Reserve storage for a specific number of values.

This is useful for reading external data using GetCoordinateStorage() and GetValueStorage(), when the total number of non-nullptr values in the array can be determined in advance. Note that after calling ReserveStorage(), all coordinates and values will be undefined, so you must ensure that every set of coordinates and values is overwritten. It is the caller's responsibility to ensure that duplicate coordinates are not inserted into the array.

◆ SetExtentsFromContents()

template<typename T >

void vtkSparseArray< T >::SetExtentsFromContents ( )

Update the array extents to match its contents, so that the extent along each dimension matches the maximum index value along that dimension.

◆ SetExtents()

template<typename T >

void vtkSparseArray< T >::SetExtents ( const vtkArrayExtents & extents )

Specify arbitrary array extents, without altering the contents of the array.

Note that the extents must be as-large-or-larger-than the extents of the actual values stored in the array. The number of dimensions in the supplied extents must match the number of dimensions currently stored in the array.

◆ AddValue() [1/4]

template<typename T >

void vtkSparseArray< T >::AddValue	(	CoordinateT	i,
		const T &	value
	)

inline

Adds a new non-null element to the array.

Does not test to see if an element with matching coordinates already exists. Useful for providing fast initialization of the array as long as the caller is prepared to guarantee that no duplicate coordinates are ever used.

◆ AddValue() [2/4]

template<typename T >

void vtkSparseArray< T >::AddValue	(	CoordinateT	i,
		CoordinateT	j,
		const T &	value
	)

inline

Adds a new non-null element to the array.

Does not test to see if an element with matching coordinates already exists. Useful for providing fast initialization of the array as long as the caller is prepared to guarantee that no duplicate coordinates are ever used.

◆ AddValue() [3/4]

template<typename T >

void vtkSparseArray< T >::AddValue	(	CoordinateT	i,
		CoordinateT	j,
		CoordinateT	k,
		const T &	value
	)

inline

Adds a new non-null element to the array.

Does not test to see if an element with matching coordinates already exists. Useful for providing fast initialization of the array as long as the caller is prepared to guarantee that no duplicate coordinates are ever used.

◆ AddValue() [4/4]

template<typename T >

void vtkSparseArray< T >::AddValue	(	const vtkArrayCoordinates &	coordinates,
		const T &	value
	)

Adds a new non-null element to the array.

Does not test to see if an element with matching coordinates already exists. Useful for providing fast initialization of the array as long as the caller is prepared to guarantee that no duplicate coordinates are ever used.

◆ Validate()

template<typename T >

bool vtkSparseArray< T >::Validate ( )

Validate the contents of the array, returning false if there are any problems.

Potential problems include duplicate coordinates, which can be introduced into the array either through AddValue() or direct access to coordinates storage; and coordinates out-of-bounds given the current array extents.

Note that Validate() is a heavyweight O(N log N) operation that is intended for temporary use during debugging.

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

Common/Core/vtkSparseArray.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ CoordinateT

◆ DimensionT

◆ SizeT

Constructor & Destructor Documentation

◆ vtkSparseArray()

◆ ~vtkSparseArray()

Member Function Documentation

◆ vtkTemplateTypeMacro()

◆ New()

◆ PrintSelf()

◆ IsDense()

◆ GetExtents()

◆ GetNonNullSize()

◆ GetCoordinatesN()

◆ DeepCopy()

◆ GetValue() [1/4]

◆ GetValue() [2/4]

◆ GetValue() [3/4]

◆ GetValue() [4/4]

◆ GetValueN()

◆ SetValue() [1/4]

◆ SetValue() [2/4]

◆ SetValue() [3/4]

◆ SetValue() [4/4]

◆ SetValueN()

◆ SetNullValue()

◆ GetNullValue()

◆ Clear()

◆ Sort()

◆ GetUniqueCoordinates()

◆ GetCoordinateStorage() [1/2]

◆ GetCoordinateStorage() [2/2]

◆ GetValueStorage() [1/2]

◆ GetValueStorage() [2/2]

◆ ReserveStorage()

◆ SetExtentsFromContents()

◆ SetExtents()

◆ AddValue() [1/4]

◆ AddValue() [2/4]

◆ AddValue() [3/4]

◆ AddValue() [4/4]

◆ Validate()