casa  $Rev:20696$
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casa::VisSet Class Reference

#include <VisSet.h>

List of all members.

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.
VisSetoperator= (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.
VisIteriter ()
 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< IntnumberChan () const
 number of channels in each spectral window
Vector< IntstartChan () 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
VisIteriter_p
Matrix< Intselection_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.

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.

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.

CALDEVICE table name of the associated MS.

FIELD table name of the associated MS.

Flushes the data to disk.

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

Initializes scratch columns.

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 casa::Table::lock(), and ms_p.

Return the associated MS name.

number of antennas

number of channels in each spectral window

number of coherences

number of fields

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)

Set nominal selection to ALL channels.

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.

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 ( const Matrix< Int > &  chansel)

Collective selection via MSSelection channel selection Matrix.

SPECTRAL_WINDOW table name of the associated MS.

start channel of VisSet selection in each spectral window

SYSCAL table name of the associated MS.

SYSPOWER table name of the associated MS.

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

Definition at line 212 of file VisSet.h.

References ms_p, and casa::Table::unlock().


Member Data Documentation

Definition at line 247 of file VisSet.h.

Definition at line 245 of file VisSet.h.

Definition at line 244 of file VisSet.h.

Referenced by lock(), and unlock().

Definition at line 248 of file VisSet.h.

Definition at line 246 of file VisSet.h.


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