Filter that generates a polydata consisting of quads with texture coordinates referring to a set of icons within a sheet of icons. More...

#include <vtkIconGlyphFilter.h>

Inheritance diagram for vtkIconGlyphFilter:

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Collaboration diagram for vtkIconGlyphFilter:

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Public Member Functions

virtual void	SetIconSize (int, int)

void	SetIconSize (int[2])

virtual int *	GetIconSize ()

virtual void	GetIconSize (int data[2])


virtual void	SetIconSheetSize (int, int)

void	SetIconSheetSize (int[2])

virtual int *	GetIconSheetSize ()

virtual void	GetIconSheetSize (int data[2])


virtual void	SetDisplaySize (int, int)

void	SetDisplaySize (int[2])

virtual int *	GetDisplaySize ()

virtual void	GetDisplaySize (int data[2])


virtual void	SetUseIconSize (bool)

virtual bool	GetUseIconSize ()

virtual void	UseIconSizeOn ()

virtual void	UseIconSizeOff ()


virtual void	SetIconScaling (int)

virtual int	GetIconScaling ()

void	SetIconScalingToScalingOff ()

void	SetIconScalingToScalingArray ()


virtual void	SetPassScalars (bool)

virtual bool	GetPassScalars ()

virtual void	PassScalarsOn ()

virtual void	PassScalarsOff ()


virtual void	SetGravity (int)

virtual int	GetGravity ()

void	SetGravityToTopRight ()

void	SetGravityToTopCenter ()

void	SetGravityToTopLeft ()

void	SetGravityToCenterRight ()

void	SetGravityToCenterCenter ()

void	SetGravityToCenterLeft ()

void	SetGravityToBottomRight ()

void	SetGravityToBottomCenter ()

void	SetGravityToBottomLeft ()


virtual void	SetOffset (int, int)

void	SetOffset (int[2])

virtual int *	GetOffset ()

virtual void	GetOffset (int data[2])

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

vtkDataObject *	GetInput ()

vtkDataObject *	GetInput (int port)

vtkPolyData *	GetPolyDataInput (int port)

vtkPolyData *	GetOutput ()

vtkPolyData *	GetOutput (int)

virtual void	SetOutput (vtkDataObject *d)

virtual int	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector )

void	SetInputData (vtkDataObject *)

void	SetInputData (int, vtkDataObject *)

void	AddInputData (vtkDataObject *)

void	AddInputData (int, vtkDataObject *)

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 ()

Protected Member Functions
	vtkIconGlyphFilter ()

	~vtkIconGlyphFilter ()

virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )

Protected Member Functions inherited from vtkPolyDataAlgorithm
	vtkPolyDataAlgorithm ()

	~vtkPolyDataAlgorithm ()

virtual int	RequestInformation (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)

virtual int	FillOutputPortInformation (int port, vtkInformation *info)

virtual int	FillInputPortInformation (int port, vtkInformation *info)

virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )

Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()

	~vtkAlgorithm ()

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
int	IconSize [2]

int	IconSheetSize [2]

int	DisplaySize [2]

int	Gravity

bool	UseIconSize

int	IconScaling

bool	PassScalars

int	Offset [2]

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

typedef vtkPolyDataAlgorithm	Superclass

static vtkIconGlyphFilter *	New ()

static int	IsTypeOf (const char *type)

static vtkIconGlyphFilter *	SafeDownCast (vtkObjectBase *o)

virtual int	IsA (const char *type)

vtkIconGlyphFilter *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkPolyDataAlgorithm
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

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

static int	IsTypeOf (const char *type)

static vtkPolyDataAlgorithm *	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 ()

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

Filter that generates a polydata consisting of quads with texture coordinates referring to a set of icons within a sheet of icons.

vtkIconGlyphFilter takes in a vtkPointSet where each point corresponds to the center of an icon. Scalar integer data must also be set to give each point an icon index. This index is a zero based row major index into an image that contains a grid of icons (each icon is the same size). You must also specify 1) the size of the icon in the icon sheet (in pixels), 2) the size of the icon sheet (in pixels), and 3) the display size of each icon (again in display coordinates, or pixels).

Various other parameters are used to control how this data is combined. If UseIconSize is true then the DisplaySize is ignored. If PassScalars is true, then the scalar index information is passed to the output. Also, there is an optional IconScale array which, if UseIconScaling is on, will scale each icon independently.

See also: vtkPolyDataAlgorithm vtkGlyph3D vtkGlyph2D

Tests:: vtkIconGlyphFilter (Tests)

Definition at line 61 of file vtkIconGlyphFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkIconGlyphFilter::Superclass

Standard VTK methods.

Definition at line 67 of file vtkIconGlyphFilter.h.

Constructor & Destructor Documentation

vtkIconGlyphFilter::vtkIconGlyphFilter ( )

protected

vtkIconGlyphFilter::~vtkIconGlyphFilter ( )

protected

Member Function Documentation

static vtkIconGlyphFilter* vtkIconGlyphFilter::New ( )

static

Standard VTK methods.

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

static

Standard VTK methods.

virtual int vtkIconGlyphFilter::IsA ( const char * type )

virtual

Standard VTK methods.

Reimplemented from vtkPolyDataAlgorithm.

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

static

Standard VTK methods.

virtual vtkObjectBase* vtkIconGlyphFilter::NewInstanceInternal ( ) const

protectedvirtual

Standard VTK methods.

Reimplemented from vtkPolyDataAlgorithm.

vtkIconGlyphFilter* vtkIconGlyphFilter::NewInstance ( ) const

Standard VTK methods.

void vtkIconGlyphFilter::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

virtual

Standard VTK methods.

Reimplemented from vtkPolyDataAlgorithm.

virtual void vtkIconGlyphFilter::SetIconSize	(	int	,
		int
	)

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

void vtkIconGlyphFilter::SetIconSize ( int [2] )

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual int* vtkIconGlyphFilter::GetIconSize ( )

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual void vtkIconGlyphFilter::GetIconSize ( int data[2] )

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual void vtkIconGlyphFilter::SetIconSheetSize	(	int	,
		int
	)

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

void vtkIconGlyphFilter::SetIconSheetSize ( int [2] )

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual int* vtkIconGlyphFilter::GetIconSheetSize ( )

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual void vtkIconGlyphFilter::GetIconSheetSize ( int data[2] )

virtual

Specify the Width and Height, in pixels, of an icon in the icon sheet.

virtual void vtkIconGlyphFilter::SetDisplaySize	(	int	,
		int
	)

virtual

Specify the Width and Height, in pixels, of the size of the icon when it is rendered. By default, the IconSize is used to set the display size (i.e., UseIconSize is true by default). Note that assumes that IconScaling is disabled, or if enabled, the scale of a particular icon is 1.

void vtkIconGlyphFilter::SetDisplaySize ( int [2] )

Specify the Width and Height, in pixels, of the size of the icon when it is rendered. By default, the IconSize is used to set the display size (i.e., UseIconSize is true by default). Note that assumes that IconScaling is disabled, or if enabled, the scale of a particular icon is 1.

virtual int* vtkIconGlyphFilter::GetDisplaySize ( )

virtual

Specify the Width and Height, in pixels, of the size of the icon when it is rendered. By default, the IconSize is used to set the display size (i.e., UseIconSize is true by default). Note that assumes that IconScaling is disabled, or if enabled, the scale of a particular icon is 1.

virtual void vtkIconGlyphFilter::GetDisplaySize ( int data[2] )

virtual

Specify the Width and Height, in pixels, of the size of the icon when it is rendered. By default, the IconSize is used to set the display size (i.e., UseIconSize is true by default). Note that assumes that IconScaling is disabled, or if enabled, the scale of a particular icon is 1.

virtual void vtkIconGlyphFilter::SetUseIconSize ( bool )

virtual

Specify whether the Quad generated to place the icon on will be either the dimensions specified by IconSize or the DisplaySize.

virtual bool vtkIconGlyphFilter::GetUseIconSize ( )

virtual

Specify whether the Quad generated to place the icon on will be either the dimensions specified by IconSize or the DisplaySize.

virtual void vtkIconGlyphFilter::UseIconSizeOn ( )

virtual

Specify whether the Quad generated to place the icon on will be either the dimensions specified by IconSize or the DisplaySize.

virtual void vtkIconGlyphFilter::UseIconSizeOff ( )

virtual

Specify whether the Quad generated to place the icon on will be either the dimensions specified by IconSize or the DisplaySize.

virtual void vtkIconGlyphFilter::SetIconScaling ( int )

virtual

Specify how to specify individual icons. By default, icon scaling is off, but if it is on, then the filter looks for an array named "IconScale" to control individual icon size.

virtual int vtkIconGlyphFilter::GetIconScaling ( )

virtual

Specify how to specify individual icons. By default, icon scaling is off, but if it is on, then the filter looks for an array named "IconScale" to control individual icon size.

void vtkIconGlyphFilter::SetIconScalingToScalingOff ( )

inline

Specify how to specify individual icons. By default, icon scaling is off, but if it is on, then the filter looks for an array named "IconScale" to control individual icon size.

Definition at line 109 of file vtkIconGlyphFilter.h.

void vtkIconGlyphFilter::SetIconScalingToScalingArray ( )

inline

Specify how to specify individual icons. By default, icon scaling is off, but if it is on, then the filter looks for an array named "IconScale" to control individual icon size.

Definition at line 110 of file vtkIconGlyphFilter.h.

virtual void vtkIconGlyphFilter::SetPassScalars ( bool )

virtual

Specify whether to pass the scalar icon index to the output. By default this is not passed since it can affect color during the rendering process. Note that all other point data is passed to the output regardless of the value of this flag.

virtual bool vtkIconGlyphFilter::GetPassScalars ( )

virtual

Specify whether to pass the scalar icon index to the output. By default this is not passed since it can affect color during the rendering process. Note that all other point data is passed to the output regardless of the value of this flag.

virtual void vtkIconGlyphFilter::PassScalarsOn ( )

virtual

Specify whether to pass the scalar icon index to the output. By default this is not passed since it can affect color during the rendering process. Note that all other point data is passed to the output regardless of the value of this flag.

virtual void vtkIconGlyphFilter::PassScalarsOff ( )

virtual

Specify whether to pass the scalar icon index to the output. By default this is not passed since it can affect color during the rendering process. Note that all other point data is passed to the output regardless of the value of this flag.

virtual void vtkIconGlyphFilter::SetGravity ( int )

virtual