Use a vtkWindow as input to image pipeline. More...

#include <vtkWindowToImageFilter.h>

Inheritance diagram for vtkWindowToImageFilter:

Collaboration diagram for vtkWindowToImageFilter:

Public Types
typedef vtkAlgorithm	Superclass

Public Types inherited from vtkAlgorithm
typedef vtkObject	Superclass

enum	DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkWindowToImageFilter *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

void	SetInput (vtkWindow *input)

vtkImageData *	GetOutput ()


virtual vtkWindow *	GetInput ()


virtual void	SetMagnification (int)

virtual int	GetMagnification ()


virtual void	SetFixBoundary (bool)

virtual bool	GetFixBoundary ()

virtual void	FixBoundaryOn ()

virtual void	FixBoundaryOff ()


virtual void	ReadFrontBufferOn ()

virtual void	ReadFrontBufferOff ()

virtual int	GetReadFrontBuffer ()

virtual void	SetReadFrontBuffer (int)


virtual void	ShouldRerenderOn ()

virtual void	ShouldRerenderOff ()

virtual void	SetShouldRerender (int)

virtual int	GetShouldRerender ()


virtual void	SetViewport (double, double, double, double)

virtual void	SetViewport (double[4])

virtual double *	GetViewport ()

virtual void	GetViewport (double data[4])


virtual void	SetInputBufferType (int)

virtual int	GetInputBufferType ()

void	SetInputBufferTypeToRGB ()

void	SetInputBufferTypeToRGBA ()

void	SetInputBufferTypeToZBuffer ()


virtual int	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector )

Public Member Functions inherited from vtkAlgorithm
vtkAlgorithm *	NewInstance () const

int	HasExecutive ()

vtkExecutive *	GetExecutive ()

virtual void	SetExecutive (vtkExecutive *executive)

virtual int	ModifyRequest (vtkInformation *request, int when)

vtkInformation *	GetInputPortInformation (int port)

vtkInformation *	GetOutputPortInformation (int port)

int	GetNumberOfInputPorts ()

int	GetNumberOfOutputPorts ()

void	UpdateProgress (double amount)

vtkInformation *	GetInputArrayInformation (int idx)

void	RemoveAllInputs ()

vtkDataObject *	GetOutputDataObject (int port)

virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	RemoveInputConnection (int port, int idx)

virtual void	RemoveAllInputConnections (int port)

int	GetNumberOfInputConnections (int port)

int	GetTotalNumberOfInputConnections ()

vtkAlgorithmOutput *	GetInputConnection (int port, int index)

vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)

vtkAlgorithm *	GetInputAlgorithm (int port, int index)

vtkExecutive *	GetInputExecutive (int port, int index)

vtkInformation *	GetInputInformation (int port, int index)

vtkInformation *	GetOutputInformation (int port)

virtual void	UpdateInformation ()

virtual void	UpdateDataObject ()

virtual void	PropagateUpdateExtent ()

virtual void	UpdateWholeExtent ()

void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)

int	SetUpdateExtentToWholeExtent (int port)

int	SetUpdateExtentToWholeExtent ()

void	SetUpdateExtent (int port, int extent[6])

int	ProcessRequest (vtkInformation request, vtkCollection inInfo, vtkInformationVector *outInfo)

virtual int	ComputePipelineMTime (vtkInformation request, vtkInformationVector inInfoVec, vtkInformationVector outInfoVec, int requestFromOutputPort, unsigned long *mtime)

virtual vtkInformation *	GetInformation ()

virtual void	SetInformation (vtkInformation *)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

virtual void	SetAbortExecute (int)

virtual int	GetAbortExecute ()

virtual void	AbortExecuteOn ()

virtual void	AbortExecuteOff ()

virtual void	SetProgress (double)

virtual double	GetProgress ()

void	SetProgressText (const char *ptext)

virtual char *	GetProgressText ()

virtual unsigned long	GetErrorCode ()

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)

virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)

virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char fieldAssociation, const char attributeTypeorName)

vtkDataObject *	GetInputDataObject (int port, int connection)

virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	SetInputConnection (vtkAlgorithmOutput *input)

virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	AddInputConnection (vtkAlgorithmOutput *input)

virtual void	SetInputDataObject (int port, vtkDataObject *data)

virtual void	SetInputDataObject (vtkDataObject *data)

virtual void	AddInputDataObject (int port, vtkDataObject *data)

virtual void	AddInputDataObject (vtkDataObject *data)

vtkAlgorithmOutput *	GetOutputPort (int index)

vtkAlgorithmOutput *	GetOutputPort ()

vtkAlgorithm *	GetInputAlgorithm ()

vtkExecutive *	GetInputExecutive ()

vtkInformation *	GetInputInformation ()

virtual void	Update (int port)

virtual void	Update ()

virtual void	SetReleaseDataFlag (int)

virtual int	GetReleaseDataFlag ()

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

int	UpdateExtentIsEmpty (vtkInformation pinfo, vtkDataObject output)

int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)

void	SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel)

void	SetUpdateExtent (int piece, int numPieces, int ghostLevel)

void	SetUpdateExtent (int extent[6])

int *	GetUpdateExtent ()

int *	GetUpdateExtent (int port)

void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)

void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)

void	GetUpdateExtent (int extent[6])

void	GetUpdateExtent (int port, int extent[6])

int	GetUpdatePiece ()

int	GetUpdatePiece (int port)

int	GetUpdateNumberOfPieces ()

int	GetUpdateNumberOfPieces (int port)

int	GetUpdateGhostLevel ()

int	GetUpdateGhostLevel (int port)

void	SetProgressObserver (vtkProgressObserver *)

virtual vtkProgressObserver *	GetProgressObserver ()

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static vtkWindowToImageFilter *	New ()

static int	IsTypeOf (const char *type)

static vtkWindowToImageFilter *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()

static int	IsTypeOf (const char *type)

static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)

static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()

static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()

static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()

static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()

static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()

static vtkInformationIntegerKey *	INPUT_PORT ()

static vtkInformationIntegerKey *	INPUT_CONNECTION ()

static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()

static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()

static void	SetDefaultExecutivePrototype (vtkExecutive *proto)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkWindowToImageFilter ()

	~vtkWindowToImageFilter ()

void	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )

virtual void	RequestInformation (vtkInformation , vtkInformationVector , vtkInformationVector )

virtual int	FillOutputPortInformation (int port, vtkInformation *info)

void	Rescale2DActors ()

void	Shift2DActors (int x, int y)

void	Restore2DActors ()

Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()

	~vtkAlgorithm ()

virtual int	FillInputPortInformation (int port, vtkInformation *info)

virtual void	SetNumberOfInputPorts (int n)

virtual void	SetNumberOfOutputPorts (int n)

int	InputPortIndexInRange (int index, const char *action)

int	OutputPortIndexInRange (int index, const char *action)

int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)

virtual vtkExecutive *	CreateDefaultExecutive ()

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	SetNumberOfInputConnections (int port, int n)

int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)

int	GetInputArrayAssociation (int idx, vtkDataObject *input)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)

vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)

virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)

void	SetInputDataInternal (int port, vtkDataObject *input)

void	AddInputDataInternal (int port, vtkDataObject *input)

virtual void	SetErrorCode (unsigned long)

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkWindow *	Input

int	Magnification

int	ReadFrontBuffer

int	ShouldRerender

double	Viewport [4]

int	InputBufferType

bool	FixBoundary

vtkWTI2DHelperClass *	StoredData

Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information

double	Progress

char *	ProgressText

vtkProgressObserver *	ProgressObserver

unsigned long	ErrorCode

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Public Attributes inherited from vtkAlgorithm
int	AbortExecute

Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()

Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

Use a vtkWindow as input to image pipeline.

vtkWindowToImageFilter provides methods needed to read the data in a vtkWindow and use it as input to the imaging pipeline. This is useful for saving an image to a file for example. The window can be read as either RGB or RGBA pixels; in addition, the depth buffer can also be read. RGB and RGBA pixels are of type unsigned char, while Z-Buffer data is returned as floats. Use this filter to convert RenderWindows or ImageWindows to an image format.

Warning: A vtkWindow doesn't behave like other parts of the VTK pipeline: its modification time doesn't get updated when an image is rendered. As a result, naive use of vtkWindowToImageFilter will produce an image of the first image that the window rendered, but which is never updated on subsequent window updates. This behavior is unexpected and in general undesirable.; To force an update of the output image, call vtkWindowToImageFilter's Modified method after rendering to the window.; In VTK versions 4 and later, this filter is part of the canonical way to output an image of a window to a file (replacing the obsolete SaveImageAsPPM method for vtkRenderWindows that existed in 3.2 and earlier). Connect this filter to the output of the window, and filter's output to a writer such as vtkPNGWriter.; Reading back alpha planes is dependent on the correct operation of the render window's GetRGBACharPixelData method, which in turn is dependent on the configuration of the window's alpha planes. As of VTK 4.4+, machine-independent behavior is not automatically assured because of these dependencies.

See also: vtkWindow vtkRenderLargeImage

Examples:: vtkWindowToImageFilter (Examples)

Tests:: vtkWindowToImageFilter (Tests)

Definition at line 75 of file vtkWindowToImageFilter.h.

Member Typedef Documentation

typedef vtkAlgorithm vtkWindowToImageFilter::Superclass

Definition at line 80 of file vtkWindowToImageFilter.h.

Constructor & Destructor Documentation

vtkWindowToImageFilter::vtkWindowToImageFilter ( )

protected

vtkWindowToImageFilter::~vtkWindowToImageFilter ( )

protected

Member Function Documentation

static vtkWindowToImageFilter* vtkWindowToImageFilter::New ( )

static

static int vtkWindowToImageFilter::IsTypeOf ( const char * type )

static

virtual int vtkWindowToImageFilter::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 vtkAlgorithm.

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

static

virtual vtkObjectBase* vtkWindowToImageFilter::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkAlgorithm.

vtkWindowToImageFilter* vtkWindowToImageFilter::NewInstance ( ) const

void vtkWindowToImageFilter::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 vtkAlgorithm.

void vtkWindowToImageFilter::SetInput ( vtkWindow * input )

Indicates what renderer to get the pixel data from. Initial value is 0.

virtual vtkWindow* vtkWindowToImageFilter::GetInput ( )

virtual

Returns which renderer is being used as the source for the pixel data. Initial value is 0.

virtual void vtkWindowToImageFilter::SetMagnification ( int )

virtual

The magnification of the current render window. Initial value is 1.

virtual int vtkWindowToImageFilter::GetMagnification ( )

virtual

The magnification of the current render window. Initial value is 1.

virtual void vtkWindowToImageFilter::SetFixBoundary ( bool )

virtual

When this->Magnification > 1, this class render the full image in tiles. Sometimes that results in artificial artifacts at internal tile seams. To overcome this issue, set this flag to true.

virtual bool vtkWindowToImageFilter::GetFixBoundary ( )

virtual

When this->Magnification > 1, this class render the full image in tiles. Sometimes that results in artificial artifacts at internal tile seams. To overcome this issue, set this flag to true.

virtual void vtkWindowToImageFilter::FixBoundaryOn ( )

virtual

When this->Magnification > 1, this class render the full image in tiles. Sometimes that results in artificial artifacts at internal tile seams. To overcome this issue, set this flag to true.

virtual void vtkWindowToImageFilter::FixBoundaryOff ( )

virtual

When this->Magnification > 1, this class render the full image in tiles. Sometimes that results in artificial artifacts at internal tile seams. To overcome this issue, set this flag to true.

virtual void vtkWindowToImageFilter::ReadFrontBufferOn ( )

virtual

Set/Get the flag that determines which buffer to read from. The default is to read from the front buffer.

virtual void vtkWindowToImageFilter::ReadFrontBufferOff ( )

virtual

Set/Get the flag that determines which buffer to read from. The default is to read from the front buffer.

virtual int vtkWindowToImageFilter::GetReadFrontBuffer ( )

virtual

Set/Get the flag that determines which buffer to read from. The default is to read from the front buffer.

virtual void vtkWindowToImageFilter::SetReadFrontBuffer ( int )

virtual

Set/Get the flag that determines which buffer to read from. The default is to read from the front buffer.

virtual void vtkWindowToImageFilter::ShouldRerenderOn ( )

virtual

Set/get whether to re-render the input window. Initial value is true. (This option makes no difference if Magnification > 1.)

virtual void vtkWindowToImageFilter::ShouldRerenderOff ( )

virtual

Set/get whether to re-render the input window. Initial value is true. (This option makes no difference if Magnification > 1.)

virtual void vtkWindowToImageFilter::SetShouldRerender ( int )

virtual

Set/get whether to re-render the input window. Initial value is true. (This option makes no difference if Magnification > 1.)

virtual int vtkWindowToImageFilter::GetShouldRerender ( )

virtual

Set/get whether to re-render the input window. Initial value is true. (This option makes no difference if Magnification > 1.)

virtual void vtkWindowToImageFilter::SetViewport	(	double	,
		double	,
		double	,
		double
	)

virtual

Set/get the extents to be used to generate the image. Initial value is {0,0,1,1} (This option does not work if Magnification > 1.)

virtual void vtkWindowToImageFilter::SetViewport ( double [4] )

virtual

Set/get the extents to be used to generate the image. Initial value is {0,0,1,1} (This option does not work if Magnification > 1.)

virtual double* vtkWindowToImageFilter::GetViewport ( )

virtual

Set/get the extents to be used to generate the image. Initial value is {0,0,1,1} (This option does not work if Magnification > 1.)

virtual void vtkWindowToImageFilter::GetViewport ( double data[4] )

virtual

Set/get the extents to be used to generate the image. Initial value is {0,0,1,1} (This option does not work if Magnification > 1.)

virtual void vtkWindowToImageFilter::SetInputBufferType ( int )

virtual