casa::VisSet Class Reference

#include <VisSet.h>

Public Member Functions
	VisSet ()
	default constructor, only useful to assign to later.
	VisSet (MeasurementSet &ms, const Block< Int > &columns, const Matrix< Int > &chanSelection, Double timeInterval=0, Bool compress=False, Bool doModelData=True)
	Construct from a MeasurementSet, with iteration order specified in columns (giving the MS enum for the column) Specify channel selection as a Matrix(3,nSpw) where for each spectral window the three values are start,nChannel and spectral window number.
	VisSet (MeasurementSet &ms, const Block< Int > &columns, const Matrix< Int > &chanSelection, Bool addScratch, Double timeInterval=0, Bool compress=False, Bool doModelData=True)
	Same as above, but provide scratch column option.
	VisSet (Block< MeasurementSet > &mss, const Block< Int > &columns, const Block< Matrix< Int > > &chanSelections, Bool addStratch=False, Double timeInterval=0, Bool compress=False, Bool doModelData=True)
	This is a constructor for multiple MS...but everything is same as the one above.
	VisSet (MeasurementSet &ms, const Matrix< Int > &chanSelection, Double timeInterval=0)
	This is a no frills constructor, no re-sorting, the default order is used, no scratch columns is made even if they don't exist.
	VisSet (ROVisibilityIterator &vi)
	Constructor from visibility iterator ....a temporary fix as EPJones as Imager stops using VisSet.
	VisSet (const VisSet &vs, const Block< Int > &columns, Double timeInterval=0)
	Construct from an existing VisSet, this references the underlying MeasurementSet(s) but allows a new iteration order and time interval to be specified.
	~VisSet ()
	Destructor, flushes the data to disk.
VisSet &	operator= (const VisSet &other)
	referencing assignment operator
void	resetVisIter (const Block< Int > &columns, Double timeInterval=0, asyncio::PrefetchColumns *prefetchColumns=NULL)
	Re-initialize the VisibilityIterator (cf copy ctor).
void	initCalSet (Int calSet=0)
	Initializes scratch columns.
void	flush ()
	Flushes the data to disk.
VisIter &	iter ()
	Iterator access to the data.
void	selectChannel (Int nGroup, Int start, Int width, Int increment, Int spectralWindow)
	Reset the channel selection.
void	selectChannel (Int nGroup, Int start, Int width, Int increment, Int spectralWindow, Bool callOrigin)
	call to VisIter origin optional:
void	selectChannel (const Matrix< Int > &chansel)
	Collective selection via MSSelection channel selection Matrix.
void	selectAllChans ()
	Set nominal selection to ALL channels.
Int	numberAnt ()
	number of antennas
Int	numberFld ()
	number of fields
Int	numberSpw ()
	number of spectral windows
Vector< Int >	numberChan () const
	number of channels in each spectral window
Vector< Int >	startChan () const
	start channel of VisSet selection in each spectral window
Int	numberCoh () const
	number of coherences
void	lock ()
	Lock and unlock the associated MS.
void	unlock ()
String	msName ()
	Return the associated MS name.
String	sysCalTableName ()
	SYSCAL table name of the associated MS.
String	spectralWindowTableName ()
	SPECTRAL_WINDOW table name of the associated MS.
String	fieldTableName ()
	FIELD table name of the associated MS.
String	syspowerTableName ()
	SYSPOWER table name of the associated MS.
String	caldeviceTableName ()
	CALDEVICE table name of the associated MS.
Private Member Functions
void	addScratchCols (MeasurementSet &ms, Bool compress=False, Bool doModelData=True)
	Add the scratch columns.
void	addCalSet (MeasurementSet &ms, Bool compress=True, Bool doModelData=True)
	Add a calibration set (comprising a set of CORRECTED_DATA and MODEL_DATA) to the MeasurementSet (MS).
void	addCalSet2 (MeasurementSet &ms, Bool compress=False, Bool doModelData=True)
Private Attributes
MeasurementSet	ms_p
VisIter *	iter_p
Matrix< Int >	selection_p
Block< MeasurementSet > *	blockOfMS_p
Bool	multims_p

Detailed Description

Definition at line 102 of file VisSet.h.

Constructor & Destructor Documentation

casa::VisSet::VisSet ( ) [inline]

default constructor, only useful to assign to later.

Definition at line 106 of file VisSet.h.

casa::VisSet::VisSet	(	MeasurementSet &	ms,
		const Block< Int > &	columns,
		const Matrix< Int > &	chanSelection,
		Double	timeInterval = `0`,
		Bool	compress = `False`,
		Bool	doModelData = `True`
	)

Construct from a MeasurementSet, with iteration order specified in columns (giving the MS enum for the column) Specify channel selection as a Matrix(3,nSpw) where for each spectral window the three values are start,nChannel and spectral window number.

Spectral windows without an entry will have all channels selected. Specify a time interval for iterating in 'chunks' of time. The default time interval of 0 groups all times together. This constructor creates two new columns: MODEL_DATA and CORRECTED_DATA If they already exist and have the same channel selection applied, they are reused. Note that the contents of these columns are NOT initialized, you should fill them before trying to read the data. The MS calibration scratch columns can be optionally compressed.

casa::VisSet::VisSet	(	MeasurementSet &	ms,
		const Block< Int > &	columns,
		const Matrix< Int > &	chanSelection,
		Bool	addScratch,
		Double	timeInterval = `0`,
		Bool	compress = `False`,
		Bool	doModelData = `True`
	)

Same as above, but provide scratch column option.

casa::VisSet::VisSet	(	Block< MeasurementSet > &	mss,
		const Block< Int > &	columns,
		const Block< Matrix< Int > > &	chanSelections,
		Bool	addStratch = `False`,
		Double	timeInterval = `0`,
		Bool	compress = `False`,
		Bool	doModelData = `True`
	)

This is a constructor for multiple MS...but everything is same as the one above.

casa::VisSet::VisSet	(	MeasurementSet &	ms,
		const Matrix< Int > &	chanSelection,
		Double	timeInterval = `0`
	)

This is a no frills constructor, no re-sorting, the default order is used, no scratch columns is made even if they don't exist.

So if you use this constructor and plan to use the scratch columns make sure that they exist prior to constructing the VisSet this way.

casa::VisSet::VisSet ( ROVisibilityIterator & vi )

Constructor from visibility iterator ....a temporary fix as EPJones as Imager stops using VisSet.

casa::VisSet::VisSet	(	const VisSet &	vs,
		const Block< Int > &	columns,
		Double	timeInterval = `0`
	)

Construct from an existing VisSet, this references the underlying MeasurementSet(s) but allows a new iteration order and time interval to be specified.

casa::VisSet::~VisSet ( )

Destructor, flushes the data to disk.

Member Function Documentation

void casa::VisSet::addCalSet	(	MeasurementSet &	ms,
		Bool	compress = `True`,
		Bool	doModelData = `True`
	)			`[private]`

Add a calibration set (comprising a set of CORRECTED_DATA and MODEL_DATA) to the MeasurementSet (MS).

Optionally compress these columns using the CompressComplex column engine.

void casa::VisSet::addCalSet2	(	MeasurementSet &	ms,
		Bool	compress = `False`,
		Bool	doModelData = `True`
	)			`[private]`

void casa::VisSet::addScratchCols	(	MeasurementSet &	ms,
		Bool	compress = `False`,
		Bool	doModelData = `True`
	)			`[private]`

Add the scratch columns.

String casa::VisSet::caldeviceTableName ( )

CALDEVICE table name of the associated MS.

String casa::VisSet::fieldTableName ( )

FIELD table name of the associated MS.

void casa::VisSet::flush ( )

Flushes the data to disk.

void casa::VisSet::initCalSet ( Int calSet = 0 )

Initializes scratch columns.

VisIter& casa::VisSet::iter ( )

Iterator access to the data.

void casa::VisSet::lock ( ) [inline]

Lock and unlock the associated MS.

Definition at line 211 of file VisSet.h.

References ms_p.

String casa::VisSet::msName ( )

Return the associated MS name.

Int casa::VisSet::numberAnt ( )

number of antennas

Vector<Int> casa::VisSet::numberChan ( ) const

number of channels in each spectral window

Int casa::VisSet::numberCoh ( ) const

number of coherences

Int casa::VisSet::numberFld ( )

number of fields

Int casa::VisSet::numberSpw ( )

number of spectral windows

VisSet& casa::VisSet::operator= ( const VisSet & other )

referencing assignment operator

void casa::VisSet::resetVisIter	(	const Block< Int > &	columns,
		Double	timeInterval = `0`,
		asyncio::PrefetchColumns *	prefetchColumns = `NULL`
	)

Re-initialize the VisibilityIterator (cf copy ctor).

void casa::VisSet::selectAllChans ( )

Set nominal selection to ALL channels.

void casa::VisSet::selectChannel ( const Matrix< Int > & chansel )

Collective selection via MSSelection channel selection Matrix.

void casa::VisSet::selectChannel	(	Int	nGroup,
		Int	start,
		Int	width,
		Int	increment,
		Int	spectralWindow,
		Bool	callOrigin
	)

call to VisIter origin optional:

void casa::VisSet::selectChannel	(	Int	nGroup,
		Int	start,
		Int	width,
		Int	increment,
		Int	spectralWindow
	)

Reset the channel selection.

Only subsets of the original selection (set in constructor) can be specified. Note: this calls origin on the iterator.

String casa::VisSet::spectralWindowTableName ( )

SPECTRAL_WINDOW table name of the associated MS.

Vector<Int> casa::VisSet::startChan ( ) const

start channel of VisSet selection in each spectral window

String casa::VisSet::sysCalTableName ( )

SYSCAL table name of the associated MS.

String casa::VisSet::syspowerTableName ( )

SYSPOWER table name of the associated MS.

void casa::VisSet::unlock ( ) [inline]

Definition at line 212 of file VisSet.h.

References ms_p.

Member Data Documentation

Block<MeasurementSet>* casa::VisSet::blockOfMS_p [private]

Definition at line 247 of file VisSet.h.

VisIter* casa::VisSet::iter_p [private]

Definition at line 245 of file VisSet.h.

MeasurementSet casa::VisSet::ms_p [private]

Definition at line 244 of file VisSet.h.

Referenced by lock(), and unlock().

Bool casa::VisSet::multims_p [private]

Definition at line 248 of file VisSet.h.

Matrix<Int> casa::VisSet::selection_p [private]

Definition at line 246 of file VisSet.h.

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

code/msvis/MSVis/VisSet.h

casa::VisSet Class Reference

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation