write Stanford PLY file format More...

#include <vtkPLYWriter.h>

Inheritance diagram for vtkPLYWriter:

Collaboration diagram for vtkPLYWriter:

Public Types
typedef vtkWriter	Superclass

Public Types inherited from vtkWriter
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)

vtkPLYWriter *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)


virtual void	SetDataByteOrder (int)

virtual int	GetDataByteOrder ()

void	SetDataByteOrderToBigEndian ()

void	SetDataByteOrderToLittleEndian ()


virtual void	SetColorMode (int)

virtual int	GetColorMode ()

void	SetColorModeToDefault ()

void	SetColorModeToUniformCellColor ()

void	SetColorModeToUniformPointColor ()

void	SetColorModeToUniformColor ()

void	SetColorModeToOff ()


virtual void	SetArrayName (const char *)

virtual char *	GetArrayName ()


virtual void	SetComponent (int)

virtual int	GetComponent ()


virtual void	SetLookupTable (vtkScalarsToColors *)

virtual vtkScalarsToColors *	GetLookupTable ()


virtual void	SetColor (unsigned char, unsigned char, unsigned char)

virtual void	SetColor (unsigned char[3])

virtual unsigned char *	GetColor ()

virtual void	GetColor (unsigned char &, unsigned char &, unsigned char &)

virtual void	GetColor (unsigned char[3])


vtkPolyData *	GetInput ()

vtkPolyData *	GetInput (int port)


virtual void	SetFileName (const char *)

virtual char *	GetFileName ()


virtual void	SetFileType (int)

virtual int	GetFileType ()

void	SetFileTypeToASCII ()

void	SetFileTypeToBinary ()

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

virtual int	Write ()

void	EncodeString (char resname, const char name, bool doublePercent)

void	EncodeWriteString (ostream out, const char name, bool doublePercent)

void	SetInputData (vtkDataObject *input)

void	SetInputData (int index, vtkDataObject *input)

vtkDataObject *	GetInput ()

vtkDataObject *	GetInput (int port)

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 vtkPLYWriter *	New ()

static int	IsTypeOf (const char *type)

static vtkPLYWriter *	SafeDownCast (vtkObjectBase *o)

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

static vtkWriter *	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

	vtkPLYWriter ()

	~vtkPLYWriter ()

void	WriteData ()

unsigned char *	GetColors (vtkIdType num, vtkDataSetAttributes *dsa)

virtual int	FillInputPortInformation (int port, vtkInformation *info)

Protected Member Functions inherited from vtkWriter
	vtkWriter ()

	~vtkWriter ()

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

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

Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()

	~vtkAlgorithm ()

virtual int	FillOutputPortInformation (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
int	DataByteOrder

char *	ArrayName

int	Component

int	ColorMode

vtkScalarsToColors *	LookupTable

unsigned char	Color [3]

char *	FileName

int	FileType

Protected Attributes inherited from vtkWriter
vtkTimeStamp	WriteTime

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

write Stanford PLY file format

vtkPLYWriter writes polygonal data in Stanford University PLY format (see http://graphics.stanford.edu/data/3Dscanrep/). The data can be written in either binary (little or big endian) or ASCII representation. As for PointData and CellData, vtkPLYWriter cannot handle normals or vectors. It only handles RGB PointData and CellData. You need to set the name of the array (using SetName for the array and SetArrayName for the writer). If the array is not a vtkUnsignedCharArray with 3 components, you need to specify a vtkLookupTable to map the scalars to RGB.

Warning: PLY does not handle big endian versus little endian correctly.

See also: vtkPLYReader

Tests:: vtkPLYWriter (Tests)

Definition at line 57 of file vtkPLYWriter.h.

Member Typedef Documentation

typedef vtkWriter vtkPLYWriter::Superclass

Definition at line 61 of file vtkPLYWriter.h.

Constructor & Destructor Documentation

vtkPLYWriter::vtkPLYWriter ( )

protected

vtkPLYWriter::~vtkPLYWriter ( )

protected

Member Function Documentation

static vtkPLYWriter* vtkPLYWriter::New ( )

static

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

static

virtual int vtkPLYWriter::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 vtkWriter.

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

static

virtual vtkObjectBase* vtkPLYWriter::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkWriter.

vtkPLYWriter* vtkPLYWriter::NewInstance ( ) const

void vtkPLYWriter::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 vtkWriter.

virtual void vtkPLYWriter::SetDataByteOrder ( int )

virtual

If the file type is binary, then the user can specify which byte order to use (little versus big endian).

virtual int vtkPLYWriter::GetDataByteOrder ( )

virtual

If the file type is binary, then the user can specify which byte order to use (little versus big endian).

void vtkPLYWriter::SetDataByteOrderToBigEndian ( )

inline

If the file type is binary, then the user can specify which byte order to use (little versus big endian).

Definition at line 69 of file vtkPLYWriter.h.

void vtkPLYWriter::SetDataByteOrderToLittleEndian ( )

inline

If the file type is binary, then the user can specify which byte order to use (little versus big endian).

Definition at line 71 of file vtkPLYWriter.h.

virtual void vtkPLYWriter::SetColorMode ( int )

virtual

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

virtual int vtkPLYWriter::GetColorMode ( )

virtual

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

void vtkPLYWriter::SetColorModeToDefault ( )

inline

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

Definition at line 91 of file vtkPLYWriter.h.

void vtkPLYWriter::SetColorModeToUniformCellColor ( )

inline

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

Definition at line 93 of file vtkPLYWriter.h.

void vtkPLYWriter::SetColorModeToUniformPointColor ( )

inline

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

Definition at line 95 of file vtkPLYWriter.h.

void vtkPLYWriter::SetColorModeToUniformColor ( )

inline

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

Definition at line 97 of file vtkPLYWriter.h.

void vtkPLYWriter::SetColorModeToOff ( )

inline

These methods enable the user to control how to add color into the PLY output file. The default behavior is as follows. The user provides the name of an array and a component number. If the type of the array is three components, unsigned char, then the data is written as three separate "red", "green" and "blue" properties. If the type is not unsigned char, and a lookup table is provided, then the array/component are mapped through the table to generate three separate "red", "green" and "blue" properties in the PLY file. The user can also set the ColorMode to specify a uniform color for the whole part (on a vertex colors, face colors, or both. (Note: vertex colors or cell colors may be written, depending on where the named array is found. If points and cells have the arrays with the same name, then both colors will be written.)

Definition at line 99 of file vtkPLYWriter.h.

virtual void vtkPLYWriter::SetArrayName ( const char * )

virtual

Specify the array name to use to color the data.

virtual char* vtkPLYWriter::GetArrayName ( )

virtual

Specify the array name to use to color the data.

virtual void vtkPLYWriter::SetComponent ( int )

virtual

Specify the array component to use to color the data.

virtual int vtkPLYWriter::GetComponent ( )

virtual

Specify the array component to use to color the data.

virtual void vtkPLYWriter::SetLookupTable ( vtkScalarsToColors * )

virtual

A lookup table can be specified in order to convert data arrays to RGBA colors.

virtual vtkScalarsToColors* vtkPLYWriter::GetLookupTable ( )

virtual

A lookup table can be specified in order to convert data arrays to RGBA colors.

virtual void vtkPLYWriter::SetColor	(	unsigned	char,
		unsigned	char,
		unsigned	char
	)

virtual