vtkImageLaplacian Class Reference

Computes divergence of gradient. More...

#include <vtkImageLaplacian.h>

Inheritance diagram for vtkImageLaplacian:

Collaboration diagram for vtkImageLaplacian:

List of all members.

Public Types
typedef vtkThreadedImageAlgorithm	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkImageLaplacian *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetDimensionality (int)
virtual int	GetDimensionality ()
Static Public Member Functions
static vtkImageLaplacian *	New ()
static int	IsTypeOf (const char *type)
static vtkImageLaplacian *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkImageLaplacian ()
	~vtkImageLaplacian ()
virtual int	RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void	ThreadedRequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector, vtkImageData ***inData, vtkImageData **outData, int outExt[6], int id)
Protected Attributes
int	Dimensionality

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Detailed Description

Computes divergence of gradient.

vtkImageLaplacian computes the Laplacian (like a second derivative) of a scalar image. The operation is the same as taking the divergence after a gradient. Boundaries are handled, so the input is the same as the output. Dimensionality determines how the input regions are interpreted. (images, or volumes). The Dimensionality defaults to two.

Tests:

vtkImageLaplacian (Tests)

Definition at line 36 of file vtkImageLaplacian.h.

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Member Typedef Documentation

typedef vtkThreadedImageAlgorithm vtkImageLaplacian::Superclass

Reimplemented from vtkThreadedImageAlgorithm.

Definition at line 40 of file vtkImageLaplacian.h.

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Constructor & Destructor Documentation

vtkImageLaplacian::vtkImageLaplacian

(

)

[protected]

vtkImageLaplacian::~vtkImageLaplacian

(

)

[inline, protected]

Definition at line 51 of file vtkImageLaplacian.h.

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Member Function Documentation

static vtkImageLaplacian* vtkImageLaplacian::New

(

)

[static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkAlgorithm.

static int vtkImageLaplacian::IsTypeOf

(

const char *

name

)

[static]

Return 1 if this class type 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 vtkThreadedImageAlgorithm.

virtual int vtkImageLaplacian::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 vtkThreadedImageAlgorithm.

static vtkImageLaplacian* vtkImageLaplacian::SafeDownCast

(

vtkObjectBase *

o

)

[static]

Reimplemented from vtkThreadedImageAlgorithm.

virtual vtkObjectBase* vtkImageLaplacian::NewInstanceInternal

(

)

const [protected, virtual]

Reimplemented from vtkThreadedImageAlgorithm.

vtkImageLaplacian* vtkImageLaplacian::NewInstance

(

)

const

Reimplemented from vtkThreadedImageAlgorithm.

void vtkImageLaplacian::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		[virtual]

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 vtkThreadedImageAlgorithm.

virtual void vtkImageLaplacian::SetDimensionality

(

int

)

[virtual]

Determines how the input is interpreted (set of 2d slices ...)

virtual int vtkImageLaplacian::GetDimensionality

(

)

[virtual]

Determines how the input is interpreted (set of 2d slices ...)

virtual int vtkImageLaplacian::RequestUpdateExtent	(	vtkInformation *	,
		vtkInformationVector **	,
		vtkInformationVector *
	)		[protected, virtual]

Subclasses can reimplement this method to translate the update extent requests from each output port into update extent requests for the input connections.

Reimplemented from vtkImageAlgorithm.

void vtkImageLaplacian::ThreadedRequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector,
		vtkImageData ***	inData,
		vtkImageData **	outData,
		int	extent[6],
		int	threadId
	)		[protected, virtual]

If the subclass does not define an Execute method, then the task will be broken up, multiple threads will be spawned, and each thread will call this method. It is public so that the thread functions can call this method.

Reimplemented from vtkThreadedImageAlgorithm.

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Member Data Documentation

int vtkImageLaplacian::Dimensionality [protected]

Definition at line 51 of file vtkImageLaplacian.h.

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

• dox/Imaging/General/vtkImageLaplacian.h