generate linear primitives (vtkPolyData) from an image More...

#include <vtkImageToPolyDataFilter.h>

Inheritance diagram for vtkImageToPolyDataFilter:

Collaboration diagram for vtkImageToPolyDataFilter:

Public Types
typedef vtkPolyDataAlgorithm	Superclass

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

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

vtkImageToPolyDataFilter *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)


virtual void	SetOutputStyle (int)

virtual int	GetOutputStyle ()

void	SetOutputStyleToPixelize ()

void	SetOutputStyleToPolygonalize ()

void	SetOutputStyleToRunLength ()


virtual void	SetColorMode (int)

virtual int	GetColorMode ()

void	SetColorModeToLUT ()

void	SetColorModeToLinear256 ()


virtual void	SetLookupTable (vtkScalarsToColors *)

virtual vtkScalarsToColors *	GetLookupTable ()


virtual void	SetSmoothing (int)

virtual int	GetSmoothing ()

virtual void	SmoothingOn ()

virtual void	SmoothingOff ()


virtual void	SetNumberOfSmoothingIterations (int)

virtual int	GetNumberOfSmoothingIterations ()


virtual void	SetDecimation (int)

virtual int	GetDecimation ()

virtual void	DecimationOn ()

virtual void	DecimationOff ()


virtual void	SetDecimationError (double)

virtual double	GetDecimationError ()


virtual void	SetError (int)

virtual int	GetError ()


virtual void	SetSubImageSize (int)

virtual int	GetSubImageSize ()

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 ()

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

static vtkImageToPolyDataFilter *	SafeDownCast (vtkObjectBase *o)

static vtkImageToPolyDataFilter *	New ()

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 ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkImageToPolyDataFilter ()

	~vtkImageToPolyDataFilter ()

virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )

virtual int	FillInputPortInformation (int port, vtkInformation *info)

virtual void	PixelizeImage (vtkUnsignedCharArray pixels, int dims[3], double origin[3], double spacing[3], vtkPolyData output)

virtual void	PolygonalizeImage (vtkUnsignedCharArray pixels, int dims[3], double origin[3], double spacing[3], vtkPolyData output)

virtual void	RunLengthImage (vtkUnsignedCharArray pixels, int dims[3], double origin[3], double spacing[3], vtkPolyData output)

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	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	OutputStyle

int	ColorMode

int	Smoothing

int	NumberOfSmoothingIterations

int	Decimation

double	DecimationError

int	Error

int	SubImageSize

vtkScalarsToColors *	LookupTable

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

generate linear primitives (vtkPolyData) from an image

vtkImageToPolyDataFilter converts raster data (i.e., an image) into polygonal data (i.e., quads or n-sided polygons), with each polygon assigned a constant color. This is useful for writers that generate vector formats (i.e., CGM or PostScript). To use this filter, you specify how to quantize the color (or whether to use an image with a lookup table), and what style the output should be. The output is always polygons, but the choice is n x m quads (where n and m define the input image dimensions) "Pixelize" option; arbitrary polygons "Polygonalize" option; or variable number of quads of constant color generated along scan lines "RunLength" option.

The algorithm quantizes color in order to create coherent regions that the polygons can represent with good compression. By default, the input image is quantized to 256 colors using a 3-3-2 bits for red-green-blue. However, you can also supply a single component image and a lookup table, with the single component assumed to be an index into the table. (Note: a quantized image can be generated with the filter vtkImageQuantizeRGBToIndex.) The number of colors on output is equal to the number of colors in the input lookup table (or 256 if the built in linear ramp is used).

The output of the filter is polygons with a single color per polygon cell. If the output style is set to "Polygonalize", the polygons may have an large number of points (bounded by something like 2*(n+m)); and the polygon may not be convex which may cause rendering problems on some systems (use vtkTriangleFilter). Otherwise, each polygon will have four vertices. The output also contains scalar data defining RGB color in unsigned char form.

Warning: The input linear lookup table must be of the form of 3-component unsigned char.; This filter defines constant cell colors. If you have a plotting device that supports Gouraud shading (linear interpolation of color), then superior algorithms are available for generating polygons from images.; Note that many plotting devices/formats support only a limited number of colors.

See also: vtkCGMWriter vtkImageQuantizeRGBToIndex vtkTriangleFilter

Tests:: vtkImageToPolyDataFilter (Tests)

Definition at line 89 of file vtkImageToPolyDataFilter.h.

Member Typedef Documentation

typedef vtkPolyDataAlgorithm vtkImageToPolyDataFilter::Superclass

Definition at line 92 of file vtkImageToPolyDataFilter.h.

Constructor & Destructor Documentation

vtkImageToPolyDataFilter::vtkImageToPolyDataFilter ( )

protected

vtkImageToPolyDataFilter::~vtkImageToPolyDataFilter ( )

protected

Member Function Documentation

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

static

virtual int vtkImageToPolyDataFilter::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 vtkPolyDataAlgorithm.

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

static

virtual vtkObjectBase* vtkImageToPolyDataFilter::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkPolyDataAlgorithm.

vtkImageToPolyDataFilter* vtkImageToPolyDataFilter::NewInstance ( ) const

void vtkImageToPolyDataFilter::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 vtkPolyDataAlgorithm.

static vtkImageToPolyDataFilter* vtkImageToPolyDataFilter::New ( )

static

Instantiate object with initial number of colors 256.

virtual void vtkImageToPolyDataFilter::SetOutputStyle ( int )

virtual

Specify how to create the output. Pixelize means converting the image to quad polygons with a constant color per quad. Polygonalize means merging colors together into polygonal regions, and then smoothing the regions (if smoothing is turned on). RunLength means creating quad polygons that may encompass several pixels on a scan line. The default behavior is Polygonalize.

virtual int vtkImageToPolyDataFilter::GetOutputStyle ( )

virtual

Specify how to create the output. Pixelize means converting the image to quad polygons with a constant color per quad. Polygonalize means merging colors together into polygonal regions, and then smoothing the regions (if smoothing is turned on). RunLength means creating quad polygons that may encompass several pixels on a scan line. The default behavior is Polygonalize.

void vtkImageToPolyDataFilter::SetOutputStyleToPixelize ( )

inline

Specify how to create the output. Pixelize means converting the image to quad polygons with a constant color per quad. Polygonalize means merging colors together into polygonal regions, and then smoothing the regions (if smoothing is turned on). RunLength means creating quad polygons that may encompass several pixels on a scan line. The default behavior is Polygonalize.

Definition at line 107 of file vtkImageToPolyDataFilter.h.

void vtkImageToPolyDataFilter::SetOutputStyleToPolygonalize ( )

inline

Specify how to create the output. Pixelize means converting the image to quad polygons with a constant color per quad. Polygonalize means merging colors together into polygonal regions, and then smoothing the regions (if smoothing is turned on). RunLength means creating quad polygons that may encompass several pixels on a scan line. The default behavior is Polygonalize.

Definition at line 109 of file vtkImageToPolyDataFilter.h.

void vtkImageToPolyDataFilter::SetOutputStyleToRunLength ( )

inline

Specify how to create the output. Pixelize means converting the image to quad polygons with a constant color per quad. Polygonalize means merging colors together into polygonal regions, and then smoothing the regions (if smoothing is turned on). RunLength means creating quad polygons that may encompass several pixels on a scan line. The default behavior is Polygonalize.

Definition at line 111 of file vtkImageToPolyDataFilter.h.

virtual void vtkImageToPolyDataFilter::SetColorMode ( int )

virtual

Specify how to quantize color.

virtual int vtkImageToPolyDataFilter::GetColorMode ( )

virtual

Specify how to quantize color.

void vtkImageToPolyDataFilter::SetColorModeToLUT ( )

inline

Specify how to quantize color.

Definition at line 119 of file vtkImageToPolyDataFilter.h.

void vtkImageToPolyDataFilter::SetColorModeToLinear256 ( )

inline

Specify how to quantize color.

Definition at line 121 of file vtkImageToPolyDataFilter.h.

virtual void vtkImageToPolyDataFilter::SetLookupTable ( vtkScalarsToColors * )

virtual

Set/Get the vtkLookupTable to use. The lookup table is used when the color mode is set to LUT and a single component scalar is input.

virtual vtkScalarsToColors* vtkImageToPolyDataFilter::GetLookupTable ( )

virtual

Set/Get the vtkLookupTable to use. The lookup table is used when the color mode is set to LUT and a single component scalar is input.

virtual void vtkImageToPolyDataFilter::SetSmoothing ( int )

virtual

If the output style is set to polygonalize, then you can control whether to smooth boundaries.

virtual int vtkImageToPolyDataFilter::GetSmoothing ( )

virtual

If the output style is set to polygonalize, then you can control whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::SmoothingOn ( )

virtual

If the output style is set to polygonalize, then you can control whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::SmoothingOff ( )

virtual

If the output style is set to polygonalize, then you can control whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::SetNumberOfSmoothingIterations ( int )

virtual

Specify the number of smoothing iterations to smooth polygons. (Only in effect if output style is Polygonalize and smoothing is on.)

virtual int vtkImageToPolyDataFilter::GetNumberOfSmoothingIterations ( )

virtual

Specify the number of smoothing iterations to smooth polygons. (Only in effect if output style is Polygonalize and smoothing is on.)

virtual void vtkImageToPolyDataFilter::SetDecimation ( int )

virtual

Turn on/off whether the final polygons should be decimated. whether to smooth boundaries.

virtual int vtkImageToPolyDataFilter::GetDecimation ( )

virtual

Turn on/off whether the final polygons should be decimated. whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::DecimationOn ( )

virtual

Turn on/off whether the final polygons should be decimated. whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::DecimationOff ( )

virtual

Turn on/off whether the final polygons should be decimated. whether to smooth boundaries.

virtual void vtkImageToPolyDataFilter::SetDecimationError ( double )

virtual

Specify the error to use for decimation (if decimation is on). The error is an absolute number–the image spacing and dimensions are used to create points so the error should be consistent with the image size.

virtual double vtkImageToPolyDataFilter::GetDecimationError ( )

virtual

Specify the error to use for decimation (if decimation is on). The error is an absolute number–the image spacing and dimensions are used to create points so the error should be consistent with the image size.

virtual void vtkImageToPolyDataFilter::SetError ( int )

virtual

Specify the error value between two colors where the colors are considered the same. Only use this if the color mode uses the default 256 table.

virtual int vtkImageToPolyDataFilter::GetError ( )

virtual

Specify the error value between two colors where the colors are considered the same. Only use this if the color mode uses the default 256 table.

virtual void vtkImageToPolyDataFilter::SetSubImageSize ( int )

virtual

Specify the size (n by n pixels) of the largest region to polygonalize. When the OutputStyle is set to VTK_STYLE_POLYGONALIZE, large amounts of memory are used. In order to process large images, the image is broken into pieces that are at most Size pixels in width and height.

virtual int vtkImageToPolyDataFilter::GetSubImageSize ( )

virtual

Specify the size (n by n pixels) of the largest region to polygonalize. When the OutputStyle is set to VTK_STYLE_POLYGONALIZE, large amounts of memory are used. In order to process large images, the image is broken into pieces that are at most Size pixels in width and height.

virtual int vtkImageToPolyDataFilter::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)

protectedvirtual

This is called by the superclass. This is the method you should override.

Reimplemented from vtkPolyDataAlgorithm.

virtual int vtkImageToPolyDataFilter::FillInputPortInformation	(	int	port,
		vtkInformation *	info
	)

protectedvirtual

Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPolyDataAlgorithm.

virtual void vtkImageToPolyDataFilter::PixelizeImage	(	vtkUnsignedCharArray *	pixels,
		int	dims[3],
		double	origin[3],
		double	spacing[3],
		vtkPolyData *	output
	)

protectedvirtual

virtual void vtkImageToPolyDataFilter::PolygonalizeImage	(	vtkUnsignedCharArray *	pixels,
		int	dims[3],
		double	origin[3],
		double	spacing[3],
		vtkPolyData *	output
	)

protectedvirtual

virtual void vtkImageToPolyDataFilter::RunLengthImage	(	vtkUnsignedCharArray *	pixels,
		int	dims[3],
		double	origin[3],
		double	spacing[3],
		vtkPolyData *	output
	)