interpolate data values from images More...

#include <vtkImageInterpolator.h>

Inheritance diagram for vtkImageInterpolator:

Collaboration diagram for vtkImageInterpolator:

Public Types
typedef vtkAbstractImageInterpolator	Superclass

Public Types inherited from vtkAbstractImageInterpolator
typedef vtkObject	Superclass

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

vtkImageInterpolator *	NewInstance () const

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

void	ComputeSupportSize (const double matrix[16], int size[3]) override
	Get the support size for use in computing update extents. More...

bool	IsSeparable () override
	Returns true if the interpolator supports weight precomputation. More...

void	FreePrecomputedWeights (vtkInterpolationWeights *&weights) override
	Free the precomputed weights. More...


virtual void	SetInterpolationMode (int mode)
	The interpolation mode for point scalars (default: linear). More...

void	SetInterpolationModeToNearest ()
	The interpolation mode for point scalars (default: linear). More...

void	SetInterpolationModeToLinear ()
	The interpolation mode for point scalars (default: linear). More...

void	SetInterpolationModeToCubic ()
	The interpolation mode for point scalars (default: linear). More...

int	GetInterpolationMode ()
	The interpolation mode for point scalars (default: linear). More...

virtual const char *	GetInterpolationModeAsString ()
	The interpolation mode for point scalars (default: linear). More...


void	PrecomputeWeightsForExtent (const double matrix[16], const int extent[6], int newExtent[6], vtkInterpolationWeights *&weights) override
	If the data is going to be sampled on a regular grid, then the interpolation weights can be precomputed. More...

void	PrecomputeWeightsForExtent (const float matrix[16], const int extent[6], int newExtent[6], vtkInterpolationWeights *&weights) override
	If the data is going to be sampled on a regular grid, then the interpolation weights can be precomputed. More...

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

vtkAbstractImageInterpolator *	NewInstance () const

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

virtual void	Initialize (vtkDataObject *data)
	Initialize the interpolator with the data that you wish to interpolate. More...

virtual void	ReleaseData ()
	Release any data stored by the interpolator. More...

void	DeepCopy (vtkAbstractImageInterpolator *obj)
	Copy the interpolator. More...

virtual void	Update ()
	Update the interpolator. More...

double	Interpolate (double x, double y, double z, int component)
	Get the result of interpolating the specified component of the input data, which should be set to zero if there is only one component. More...

bool	Interpolate (const double point[3], double *value)
	Sample the input data. More...

void	SetOutValue (double outValue)
	The value to return when the point is out of bounds. More...

double	GetOutValue ()

void	SetTolerance (double tol)
	The tolerance to apply when checking whether a point is out of bounds. More...

double	GetTolerance ()

void	SetComponentOffset (int offset)
	This method specifies which component of the input will be interpolated, or if ComponentCount is also set, it specifies the first component. More...

int	GetComponentOffset ()

void	SetComponentCount (int count)
	This method specifies the number of components to extract. More...

int	GetComponentCount ()

int	ComputeNumberOfComponents (int inputComponents)
	Compute the number of output components based on the ComponentOffset, ComponentCount, and the number of components in the input data. More...

int	GetNumberOfComponents ()
	Get the number of components that will be returned when Interpolate() is called. More...

void	SetSlidingWindow (bool x)
	Enable sliding window for separable kernels. More...

void	SlidingWindowOn ()

void	SlidingWindowOff ()

bool	GetSlidingWindow ()

virtual void	ComputeSupportSize (const double matrix[16], int support[3])=0
	Get the support size for use in computing update extents. More...

virtual bool	IsSeparable ()=0
	True if the interpolation is separable, which means that the weights can be precomputed in order to accelerate the interpolation. More...

virtual void	FreePrecomputedWeights (vtkInterpolationWeights *&weights)
	Free the weights that were provided by PrecomputeWeightsForExtent. More...

void	InterpolateIJK (const double point[3], double *value)
	A version of Interpolate that takes structured coords instead of data coords. More...

void	InterpolateIJK (const float point[3], float *value)
	A version of Interpolate that takes structured coords instead of data coords. More...

bool	CheckBoundsIJK (const double x[3])
	Check an x,y,z point to see if it is within the bounds for the structured coords of the image. More...

bool	CheckBoundsIJK (const float x[3])
	Check an x,y,z point to see if it is within the bounds for the structured coords of the image. More...

void	SetBorderMode (int mode)
	The border mode (default: clamp). More...

void	SetBorderModeToClamp ()
	The border mode (default: clamp). More...

void	SetBorderModeToRepeat ()
	The border mode (default: clamp). More...

void	SetBorderModeToMirror ()
	The border mode (default: clamp). More...

int	GetBorderMode ()
	The border mode (default: clamp). More...

const char *	GetBorderModeAsString ()
	The border mode (default: clamp). More...

void	InterpolateRow (vtkInterpolationWeights &weights, int xIdx, int yIdx, int zIdx, double value, int n)
	Get a row of samples, using the weights that were precomputed by PrecomputeWeightsForExtent. More...

void	InterpolateRow (vtkInterpolationWeights &weights, int xIdx, int yIdx, int zIdx, float value, int n)
	Get a row of samples, using the weights that were precomputed by PrecomputeWeightsForExtent. More...

virtual double *	GetSpacing ()
	Get the spacing of the data being interpolated. More...

virtual void	GetSpacing (double &, double &, double &)
	Get the spacing of the data being interpolated. More...

virtual void	GetSpacing (double[3])
	Get the spacing of the data being interpolated. More...

virtual double *	GetOrigin ()
	Get the origin of the data being interpolated. More...

virtual void	GetOrigin (double &, double &, double &)
	Get the origin of the data being interpolated. More...

virtual void	GetOrigin (double[3])
	Get the origin of the data being interpolated. More...

virtual int *	GetExtent ()
	Get the extent of the data being interpolated. More...

virtual void	GetExtent (int &, int &, int &, int &, int &, int &)
	Get the extent of the data being interpolated. More...

virtual void	GetExtent (int[6])
	Get the extent of the data being interpolated. More...

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

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

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

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

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

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

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

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. More...

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

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

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

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

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

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

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

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. More...

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. More...

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. More...

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

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

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

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

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). More...

virtual void	Delete ()
	Delete a VTK object. More...

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

void	InitializeObjectBase ()

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

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

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

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

void	SetReferenceCount (int)
	Sets the reference count. More...

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

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

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

Static Public Member Functions
static vtkImageInterpolator *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkImageInterpolator *	SafeDownCast (vtkObjectBase *o)

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

static vtkAbstractImageInterpolator *	SafeDownCast (vtkObjectBase *o)

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. More...

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

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

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

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

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

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. More...

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). More...

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

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

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. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkImageInterpolator ()

	~vtkImageInterpolator () override

void	InternalUpdate () override
	Update the interpolator. More...

void	InternalDeepCopy (vtkAbstractImageInterpolator *obj) override
	Copy all members. More...


void	GetInterpolationFunc (void(*doublefunc)(vtkInterpolationInfo , const double[3], double *)) override
	Get the interpolation functions. More...

void	GetInterpolationFunc (void(*floatfunc)(vtkInterpolationInfo , const float[3], float *)) override
	Get the interpolation functions. More...


void	GetRowInterpolationFunc (void(*doublefunc)(vtkInterpolationWeights , int, int, int, double *, int)) override
	Get the row interpolation functions. More...

void	GetRowInterpolationFunc (void(*floatfunc)(vtkInterpolationWeights , int, int, int, float *, int)) override
	Get the row interpolation functions. More...

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

	vtkAbstractImageInterpolator ()

	~vtkAbstractImageInterpolator () override

virtual void	InternalUpdate ()=0
	Subclass-specific updates. More...

virtual void	InternalDeepCopy (vtkAbstractImageInterpolator *obj)=0
	Subclass-specific copy. More...

virtual void	GetSlidingWindowFunc (void(*doublefunc)(vtkInterpolationWeights , int, int, int, double *, int))
	Get the sliding window interpolation functions. More...

virtual void	GetSlidingWindowFunc (void(*floatfunc)(vtkInterpolationWeights , int, int, int, float *, int))
	Get the sliding window interpolation functions. More...

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. More...

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

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 &)

Protected Attributes
int	InterpolationMode

Protected Attributes inherited from vtkAbstractImageInterpolator
vtkDataArray *	Scalars

double	StructuredBoundsDouble [6]

float	StructuredBoundsFloat [6]

int	Extent [6]

double	Spacing [3]

double	Origin [3]

double	OutValue

double	Tolerance

int	BorderMode

int	ComponentOffset

int	ComponentCount

bool	SlidingWindow

vtkInterpolationInfo *	InterpolationInfo

void(*	InterpolationFuncDouble )(vtkInterpolationInfo info, const double point[3], double outPtr)

void(*	InterpolationFuncFloat )(vtkInterpolationInfo info, const float point[3], float outPtr)

void(*	RowInterpolationFuncDouble )(vtkInterpolationWeights weights, int idX, int idY, int idZ, double outPtr, int n)

void(*	RowInterpolationFuncFloat )(vtkInterpolationWeights weights, int idX, int idY, int idZ, float outPtr, int n)

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

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

vtkWeakPointerBase **	WeakPointers

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

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

interpolate data values from images

vtkImageInterpolator provides a simple interface for interpolating image data. It provides linear, cubic, and nearest-neighbor interpolation.

Thanks:: Thanks to David Gobbi at the Seaman Family MR Centre and Dept. of Clinical Neurosciences, Foothills Medical Centre, Calgary, for providing this class.

See also: vtkImageReslice

Definition at line 34 of file vtkImageInterpolator.h.

Member Typedef Documentation

◆ Superclass

typedef vtkAbstractImageInterpolator vtkImageInterpolator::Superclass

Definition at line 38 of file vtkImageInterpolator.h.

Constructor & Destructor Documentation

◆ vtkImageInterpolator()

vtkImageInterpolator::vtkImageInterpolator ( )

protected

◆ ~vtkImageInterpolator()

vtkImageInterpolator::~vtkImageInterpolator ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkImageInterpolator * vtkImageInterpolator::New ( )

static

◆ IsTypeOf()

static vtkTypeBool vtkImageInterpolator::IsTypeOf ( const char * type )

static

◆ IsA()

virtual vtkTypeBool vtkImageInterpolator::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkAbstractImageInterpolator.

Reimplemented in vtkGenericImageInterpolator.

◆ SafeDownCast()

static vtkImageInterpolator * vtkImageInterpolator::SafeDownCast ( vtkObjectBase * o )

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkImageInterpolator::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkAbstractImageInterpolator.

Reimplemented in vtkGenericImageInterpolator.

◆ NewInstance()

vtkImageInterpolator * vtkImageInterpolator::NewInstance ( ) const

◆ PrintSelf()

void vtkImageInterpolator::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 vtkAbstractImageInterpolator.