Base class for VTK output writers that handle geometry and fields (eg, vtp, vtu data). These output formats are structured as DECLARED, FIELD_DATA, PIECE followed by any CELL_DATA or POINT_DATA. More...

#include <foamVtkFileWriter.H>

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Public Member Functions
	fileWriter (const vtk::fileTag contentType, const vtk::outputOptions opts)
	Construct from components.
virtual	~fileWriter ()
	Destructor.
vtk::fileTag	contentType () const noexcept
	The content type.
vtk::outputOptions	opts () const noexcept
	The output options in use.
word	ext () const
	File extension for current format type.
bool	legacy () const noexcept
	Commonly used query.
bool	parallel () const noexcept
	Parallel output requested?
const word &	state () const
	The output state in printable format.
const fileName &	output () const noexcept
	The current output file name.
virtual bool	open (const fileName &file, bool parallel=UPstream::parRun())
	Open file for writing (creates parent directory).
void	close ()
	End the file contents and close the file after writing.
virtual bool	beginFile (std::string title="")
	Write file header (non-collective).
bool	beginFieldData (label nFields=0)
	Begin FieldData output section for specified number of fields.
virtual bool	writeGeometry ()=0
	Write mesh topology.
virtual bool	beginCellData (label nFields=0)=0
	Begin CellData output section for specified number of fields.
virtual bool	beginPointData (label nFields=0)=0
	Begin PointData for specified number of fields.
bool	isCellData () const noexcept
	True if output state corresponds to CELL_DATA.
bool	isPointData () const noexcept
	True if output state corresponds to POINT_DATA.
label	nCellData () const noexcept
	The number of CellData written for the Piece thus far.
label	nPointData () const noexcept
	The number of PointData written for the Piece thus far.
bool	endFieldData ()
	Explicitly end FieldData output and switch to DECLARED state.
bool	endCellData ()
	Explicitly end CellData output and switch to PIECE state.
bool	endPointData ()
	Explicitly end PointData output and switch to PIECE state.
void	writeTimeValue (scalar timeValue)
	Write "TimeValue" FieldData (name as per Catalyst output).

Protected Types
enum class	outputState : uint8_t { CLOSED = 0 , OPENED , DECLARED , FIELD_DATA , PIECE , CELL_DATA , POINT_DATA }
	Internal tracking of the output state. More...

Protected Member Functions
void	checkFormatterValidity () const
	Verify that formatter in either allocated or not required.
Ostream &	reportBadState (Ostream &, outputState expected) const
	Generate message reporting bad writer state.
Ostream &	reportBadState (Ostream &, outputState, outputState) const
	Generate message reporting bad writer state.
std::ofstream &	os () noexcept
	The backend ostream in use.
vtk::formatter &	format ()
	The VTK formatter in use. FatalError for off-processor.
bool	isState (outputState test) const noexcept
	True if output state corresponds to the test state.
bool	notState (outputState test) const noexcept
	True if output state does not correspond to the test state.
template<class Type>
void	beginDataArray (const word &fieldName, const label nValues)
	Start of a field or DataArray output (legacy or non-legacy).
void	endDataArray ()
	Flush formatter and end of DataArray output (non-legacy).
void	beginPoints (const label nPoints)
	Start of a POINTS DataArray.
void	endPoints ()
	End of a POINTS DataArray.
bool	enter_Piece ()
	Trigger change state to Piece. Resets nCellData_, nPointData_.
bool	endPiece ()
	Explicitly end Piece output and switch to DECLARED state.
bool	enter_CellData (label nEntries, label nFields)
	Trigger change state to CellData.
bool	enter_PointData (label nEntries, label nFields)
	Trigger change state to PointData.
bool	exit_File ()
	Emit file footer (end data, end piece, end file).
template<class Type>
void	writeUniform (const word &fieldName, const Type &val, const label nValues)
	Write uniform field content.
template<class Type>
void	writeBasicField (const word &fieldName, const UList< Type > &field)
	Write basic (primitive) field content.
bool	writeProcIDs (const label nValues)
	Write nValues of processor ids as CellData or PointData (no-op in serial).
	fileWriter (const fileWriter &)=delete
	No copy construct.
void	operator= (const fileWriter &)=delete
	No copy assignment.

Protected Attributes
outputState	state_
	The output state.
vtk::fileTag	contentType_
	The content type (PolyData, UnstructuredGrid ...).
bool	parallel_
	Parallel writing (via master).
vtk::outputOptions	opts_
	Requested output options.
label	nCellData_
	The number of CellData written for the Piece thus far.
label	nPointData_
	The number of PointData written for the Piece thus far.
fileName	outputFile_
	The output file name.
autoPtr< vtk::formatter >	format_
	The VTK formatter in use (only valid on master process).
std::ofstream	os_
	The backend ostream in use (only opened on master process).

Static Protected Attributes
static const Enum< outputState >	stateNames
	Names for the output state (for messages, not for file output).

Detailed Description

Base class for VTK output writers that handle geometry and fields (eg, vtp, vtu data). These output formats are structured as DECLARED, FIELD_DATA, PIECE followed by any CELL_DATA or POINT_DATA.

This writer base tracks these expected output states internally to help avoid logic errors in the callers.

The FieldData element must be placed prior to writing any geometry Piece. This moves the information to the front of the output file for visibility and simplifies the logic when creating multi-piece geometries.

Source files

Definition at line 65 of file foamVtkFileWriter.H.

Member Enumeration Documentation

◆ outputState

enum class outputState : uint8_t

strongprotected

Internal tracking of the output state.

Enumerator
CLOSED	File is closed.
OPENED	File is opened.
DECLARED	File contents declared (VTKFile header written).
FIELD_DATA	Inside FieldData.
PIECE	Inside Piece (after geometry write).
CELL_DATA	Inside CellData.
POINT_DATA	Inside PointData.

Definition at line 74 of file foamVtkFileWriter.H.

Constructor & Destructor Documentation

◆ fileWriter() [1/2]

fileWriter ( const fileWriter & )

protecteddelete

No copy construct.

References fileWriter().

Referenced by fileWriter(), fileWriter(), operator=(), and ~fileWriter().

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◆ fileWriter() [2/2]

fileWriter	(	const vtk::fileTag	contentType,
		const vtk::outputOptions	opts )

Construct from components.

References contentType(), fileWriter(), and opts().

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◆ ~fileWriter()

virtual ~fileWriter ( )

virtual

Destructor.

References contentType(), ext(), fileWriter(), legacy(), Foam::noexcept, opts(), output(), parallel(), and state().

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Member Function Documentation

◆ checkFormatterValidity()

void checkFormatterValidity ( ) const

protected

Verify that formatter in either allocated or not required.

◆ reportBadState() [1/2]

Ostream & reportBadState	(	Ostream &	,
		outputState	expected ) const

protected

Generate message reporting bad writer state.

◆ reportBadState() [2/2]

Ostream & reportBadState	(	Ostream &	,
		outputState	,
		outputState	) const

protected

Generate message reporting bad writer state.

References format(), isState(), Foam::noexcept, and notState().

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◆ os()

std::ofstream & os ( )

inlineprotectednoexcept

The backend ostream in use.

Definition at line 23 of file foamVtkFileWriterI.H.

References Foam::noexcept, and os_.

◆ format()

Foam::vtk::formatter & format ( )

inlineprotected

The VTK formatter in use. FatalError for off-processor.

Definition at line 29 of file foamVtkFileWriterI.H.

References format_.

Referenced by reportBadState().

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◆ isState()

bool isState ( outputState test ) const

inlineprotectednoexcept

True if output state corresponds to the test state.

Definition at line 35 of file foamVtkFileWriterI.H.

References state_.

Referenced by reportBadState().

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◆ notState()

bool notState ( outputState test ) const

inlineprotectednoexcept

True if output state does not correspond to the test state.

Definition at line 41 of file foamVtkFileWriterI.H.

References state_.

Referenced by reportBadState().

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◆ beginDataArray()

template<class Type>

void beginDataArray	(	const word &	fieldName,
		const label	nValues )

protected

Start of a field or DataArray output (legacy or non-legacy).

References beginDataArray().

Referenced by beginDataArray().

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◆ endDataArray()

void endDataArray ( )

protected

Flush formatter and end of DataArray output (non-legacy).

References endDataArray().

Referenced by endDataArray().

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◆ beginPoints()

void beginPoints ( const label nPoints )

protected

Start of a POINTS DataArray.

References beginPoints(), and nPoints.

Referenced by beginPoints().

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◆ endPoints()

void endPoints ( )

protected

End of a POINTS DataArray.

References endPoints().

Referenced by endPoints().

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◆ enter_Piece()

bool enter_Piece ( )

protected

Trigger change state to Piece. Resets nCellData_, nPointData_.

References enter_Piece().

Referenced by enter_Piece().

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◆ endPiece()

bool endPiece ( )

protected

Explicitly end Piece output and switch to DECLARED state.

Ignored (no-op) if not currently in the PIECE state.

References endPiece().

Referenced by endPiece().

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◆ enter_CellData()

bool enter_CellData	(	label	nEntries,
		label	nFields )

protected

Trigger change state to CellData.

Legacy requires both parameters. XML doesn't require either.

Returns: True if the state changed

References enter_CellData().

Referenced by enter_CellData().

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◆ enter_PointData()

bool enter_PointData	(	label	nEntries,
		label	nFields )

protected

Trigger change state to PointData.

Legacy requires both parameters. XML doesn't require either.

Returns: True if the state changed

References enter_PointData().

Referenced by enter_PointData().

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◆ exit_File()

bool exit_File ( )

protected

Emit file footer (end data, end piece, end file).

References exit_File().

Referenced by exit_File().

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◆ writeUniform()

template<class Type>

void writeUniform	(	const word &	fieldName,
		const Type &	val,
		const label	nValues )

protected

Write uniform field content.

No context checking (eg, file-open, CellData, PointData, etc) The value and count can be different on each processor

References writeUniform().

Referenced by writeUniform().

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◆ writeBasicField()

template<class Type>

void writeBasicField	(	const word &	fieldName,
		const UList< Type > &	field )

protected

Write basic (primitive) field content.

No context checking (eg, file-open, CellData, PointData, etc)

References field(), and writeBasicField().

Referenced by writeBasicField().

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◆ writeProcIDs()

bool writeProcIDs ( const label nValues )

protected

Write nValues of processor ids as CellData or PointData (no-op in serial).

References writeProcIDs().

Referenced by writeProcIDs(), and GenericPatchWriter< indirectPrimitivePatch >::writeProcIDs().

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◆ operator=()

void operator= ( const fileWriter & )

protecteddelete

No copy assignment.

References fileWriter().

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◆ contentType()

Foam::vtk::fileTag contentType ( ) const

inlinenoexcept

The content type.

Definition at line 49 of file foamVtkFileWriterI.H.

References contentType_, and Foam::noexcept.

Referenced by fileWriter(), and ~fileWriter().

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◆ opts()

Foam::vtk::outputOptions opts ( ) const

inlinenoexcept

The output options in use.

Definition at line 55 of file foamVtkFileWriterI.H.

References Foam::noexcept, and opts_.

Referenced by coordSetWriter::coordSetWriter(), coordSetWriter::coordSetWriter(), internalMeshWriter::ext(), patchMeshWriter::ext(), polyWriter::ext(), fileWriter(), GenericPatchWriter< indirectPrimitivePatch >::GenericPatchWriter(), GenericPatchWriter< indirectPrimitivePatch >::GenericPatchWriter(), internalMeshWriter::internalMeshWriter(), internalMeshWriter::internalMeshWriter(), internalWriter::internalWriter(), internalWriter::internalWriter(), lagrangianWriter::lagrangianWriter(), lagrangianWriter::lagrangianWriter(), lineWriter::lineWriter(), lineWriter::lineWriter(), patchMeshWriter::patchMeshWriter(), patchMeshWriter::patchMeshWriter(), patchWriter::patchWriter(), patchWriter::patchWriter(), patchWriter::patchWriter(), polyWriter::polyWriter(), polyWriter::polyWriter(), surfaceFieldWriter::surfaceFieldWriter(), surfaceFieldWriter::surfaceFieldWriter(), surfaceWriter::surfaceWriter(), surfaceWriter::surfaceWriter(), and ~fileWriter().

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◆ ext()

Foam::word ext ( ) const

inline

File extension for current format type.

Definition at line 61 of file foamVtkFileWriterI.H.

References contentType_, and opts_.

Referenced by vtkWriter::write(), ~fileWriter(), internalMeshWriter::~internalMeshWriter(), lagrangianWriter::~lagrangianWriter(), patchMeshWriter::~patchMeshWriter(), polyWriter::~polyWriter(), and surfaceFieldWriter::~surfaceFieldWriter().

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◆ legacy()

bool legacy ( ) const

inlinenoexcept

Commonly used query.

Definition at line 67 of file foamVtkFileWriterI.H.

References Foam::noexcept, and opts_.

Referenced by ~fileWriter().

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◆ parallel()

bool parallel ( ) const

inlinenoexcept

Parallel output requested?

Definition at line 73 of file foamVtkFileWriterI.H.

References Foam::noexcept, and parallel_.

Referenced by GenericPatchWriter< indirectPrimitivePatch >::GenericPatchWriter(), GenericPatchWriter< indirectPrimitivePatch >::GenericPatchWriter(), internalMeshWriter::internalMeshWriter(), internalMeshWriter::internalMeshWriter(), internalWriter::internalWriter(), internalWriter::internalWriter(), lagrangianWriter::lagrangianWriter(), lagrangianWriter::lagrangianWriter(), lineWriter::lineWriter(), lineWriter::lineWriter(), coordSetWriter::open(), open(), patchMeshWriter::patchMeshWriter(), patchMeshWriter::patchMeshWriter(), patchWriter::patchWriter(), patchWriter::patchWriter(), patchWriter::patchWriter(), polyWriter::polyWriter(), polyWriter::polyWriter(), surfaceFieldWriter::surfaceFieldWriter(), surfaceFieldWriter::surfaceFieldWriter(), surfaceWriter::surfaceWriter(), surfaceWriter::surfaceWriter(), and ~fileWriter().

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◆ state()

const Foam::word & state ( ) const

inline

The output state in printable format.

Definition at line 79 of file foamVtkFileWriterI.H.

References state_, and stateNames.

Referenced by ~fileWriter().

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◆ output()

const Foam::fileName & output ( ) const

inlinenoexcept

The current output file name.

Definition at line 85 of file foamVtkFileWriterI.H.

References Foam::noexcept, and outputFile_.

Referenced by ~fileWriter().

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◆ open()

virtual bool open	(	const fileName &	file,
		bool	parallel = UPstream::parRun() )

virtual

Open file for writing (creates parent directory).

The file name is normally without an extension, this will be added according to the content-type and the output format (legacy/xml). If the file name has an extension, it will be used where if appropriate or changed to suit the format (legacy/xml) type.

Note: Expected calling states: (CLOSED).

Reimplemented in coordSetWriter.

References open(), and parallel().

Referenced by open().

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◆ close()

void close ( )

End the file contents and close the file after writing.

Note: Expected calling states: (PIECE | CELL_DATA | POINT_DATA).

References close().

Referenced by close(), and topOVariablesBase::writeSurfaceFiles().

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◆ beginFile()

virtual bool beginFile ( std::string title = "" )

virtual

Write file header (non-collective).

Note: Expected calling states: (OPENED)

Reimplemented in coordSetWriter, GenericPatchWriter< PatchType >, GenericPatchWriter< indirectPrimitivePatch >, GenericPatchWriter< primitivePatch >, GenericPatchWriter< uindirectPrimitivePatch >, internalMeshWriter, lagrangianWriter, lineWriter, patchMeshWriter, surfaceFieldWriter, and surfaceWriter.

References beginFile().

Referenced by beginFile(), and GenericPatchWriter< indirectPrimitivePatch >::beginFile().

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◆ beginFieldData()

bool beginFieldData ( label nFields = 0 )

Begin FieldData output section for specified number of fields.

Parameters

nFields is for legacy format only. When nFields=0, this a no-op for legacy format.

Note: Expected calling states: (OPENED | DECLARED).

References beginFieldData().

Referenced by beginFieldData().

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◆ writeGeometry()

virtual bool writeGeometry ( )

pure virtual

Write mesh topology.

Also writes the file header if not previously written.

Note: Must be called prior to writing CellData or PointData

Implemented in coordSetWriter, GenericPatchWriter< PatchType >, GenericPatchWriter< indirectPrimitivePatch >, GenericPatchWriter< primitivePatch >, GenericPatchWriter< uindirectPrimitivePatch >, internalMeshWriter, lagrangianWriter, lineWriter, patchMeshWriter, polyWriter, surfaceFieldWriter, and surfaceWriter.

References writeGeometry().

Referenced by writeGeometry().

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◆ beginCellData()

virtual bool beginCellData ( label nFields = 0 )

pure virtual

Begin CellData output section for specified number of fields.

Must be called prior to writing any cell data fields.

Parameters

nFields is for legacy format only. When nFields=0, this a no-op for legacy format.

Note: Expected calling states: (PIECE | POINT_DATA).

Returns: True if the state changed

Implemented in internalMeshWriter, lagrangianWriter, patchMeshWriter, polyWriter, and surfaceFieldWriter.

References beginCellData().

Referenced by beginCellData().

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◆ beginPointData()

virtual bool beginPointData ( label nFields = 0 )

pure virtual

Begin PointData for specified number of fields.

Must be called prior to writing any point data fields.

Parameters

nFields is for legacy format only. When nFields=0, this a no-op for legacy format.

Note: Expected calling states: (PIECE | CELL_DATA).

Returns: True if the state changed

Implemented in internalMeshWriter, lagrangianWriter, patchMeshWriter, polyWriter, and surfaceFieldWriter.

References beginPointData(), isCellData(), isPointData(), nCellData(), Foam::noexcept, and nPointData().

Referenced by beginPointData().

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◆ isCellData()

bool isCellData ( ) const

inlinenoexcept

True if output state corresponds to CELL_DATA.

Definition at line 103 of file foamVtkFileWriterI.H.

References CELL_DATA, Foam::noexcept, and state_.

Referenced by beginPointData().

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◆ isPointData()

bool isPointData ( ) const

inlinenoexcept

True if output state corresponds to POINT_DATA.

Definition at line 109 of file foamVtkFileWriterI.H.

References Foam::noexcept, POINT_DATA, and state_.

Referenced by beginPointData(), and GenericPatchWriter< indirectPrimitivePatch >::writeProcIDs().

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◆ nCellData()

Foam::label nCellData ( ) const

inlinenoexcept

The number of CellData written for the Piece thus far.

Definition at line 91 of file foamVtkFileWriterI.H.

References nCellData_, and Foam::noexcept.

Referenced by beginPointData().

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◆ nPointData()

Foam::label nPointData ( ) const

inlinenoexcept

The number of PointData written for the Piece thus far.

Definition at line 97 of file foamVtkFileWriterI.H.

References Foam::noexcept, and nPointData_.

Referenced by beginPointData().

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◆ endFieldData()

bool endFieldData ( )

Explicitly end FieldData output and switch to DECLARED state.

Ignored (no-op) if not currently in the FIELD_DATA state.

References endFieldData().

Referenced by endFieldData().

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◆ endCellData()

bool endCellData ( )

Explicitly end CellData output and switch to PIECE state.

Ignored (no-op) if not currently in the CELL_DATA state.

References endCellData().

Referenced by endCellData().

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◆ endPointData()

bool endPointData ( )

Explicitly end PointData output and switch to PIECE state.

Ignored (no-op) if not currently in the POINT_DATA state.

References endPointData().

Referenced by endPointData().

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◆ writeTimeValue()

void writeTimeValue ( scalar timeValue )

Write "TimeValue" FieldData (name as per Catalyst output).

Must be called within the FIELD_DATA state.

Note: As a convenience this can also be called from (OPENED | DECLARED) states, in which case it invokes beginFieldData(1) internally.

References writeTimeValue().

Referenced by coordSetWriter::writeGeometry(), lineWriter::writeGeometry(), surfaceWriter::writeGeometry(), and writeTimeValue().

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Member Data Documentation

◆ stateNames

const Enum<outputState> stateNames

staticprotected

Names for the output state (for messages, not for file output).

Definition at line 88 of file foamVtkFileWriter.H.

Referenced by state().

◆ state_

outputState state_

protected

The output state.

Definition at line 94 of file foamVtkFileWriter.H.

Referenced by isCellData(), isPointData(), isState(), notState(), and state().

◆ contentType_

vtk::fileTag contentType_

protected

The content type (PolyData, UnstructuredGrid ...).

Definition at line 99 of file foamVtkFileWriter.H.

Referenced by contentType(), and ext().

◆ parallel_

bool parallel_

protected

Parallel writing (via master).

Definition at line 104 of file foamVtkFileWriter.H.

Referenced by parallel().

◆ opts_

vtk::outputOptions opts_

protected

Requested output options.

Definition at line 109 of file foamVtkFileWriter.H.

Referenced by ext(), legacy(), and opts().

◆ nCellData_

label nCellData_

protected

The number of CellData written for the Piece thus far.

Definition at line 114 of file foamVtkFileWriter.H.

Referenced by nCellData().

◆ nPointData_

label nPointData_

protected

The number of PointData written for the Piece thus far.

Definition at line 119 of file foamVtkFileWriter.H.

Referenced by nPointData().

◆ outputFile_

fileName outputFile_

protected

The output file name.

Definition at line 124 of file foamVtkFileWriter.H.

Referenced by output().

◆ format_

autoPtr<vtk::formatter> format_

protected

The VTK formatter in use (only valid on master process).

Definition at line 129 of file foamVtkFileWriter.H.

Referenced by format().

◆ os_

std::ofstream os_

protected

The backend ostream in use (only opened on master process).

Definition at line 134 of file foamVtkFileWriter.H.

Referenced by os().

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

src/fileFormats/vtk/file/foamVtkFileWriter.H
src/fileFormats/vtk/file/foamVtkFileWriterI.H

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ outputState

Constructor & Destructor Documentation

◆ fileWriter() [1/2]

◆ fileWriter() [2/2]

◆ ~fileWriter()

Member Function Documentation

◆ checkFormatterValidity()

◆ reportBadState() [1/2]

◆ reportBadState() [2/2]

◆ os()

◆ format()

◆ isState()

◆ notState()

◆ beginDataArray()

◆ endDataArray()

◆ beginPoints()

◆ endPoints()

◆ enter_Piece()

◆ endPiece()

◆ enter_CellData()

◆ enter_PointData()

◆ exit_File()

◆ writeUniform()

◆ writeBasicField()

◆ writeProcIDs()

◆ operator=()

◆ contentType()

◆ opts()

◆ ext()

◆ legacy()

◆ parallel()

◆ state()

◆ output()

◆ open()

◆ close()

◆ beginFile()

◆ beginFieldData()

◆ writeGeometry()

◆ beginCellData()

◆ beginPointData()

◆ isCellData()

◆ isPointData()

◆ nCellData()

◆ nPointData()

◆ endFieldData()

◆ endCellData()

◆ endPointData()

◆ writeTimeValue()

Member Data Documentation

◆ stateNames

◆ state_

◆ contentType_

◆ parallel_

◆ opts_

◆ nCellData_

◆ nPointData_

◆ outputFile_

◆ format_

◆ os_