casa::vi::TransformingVi2 Class Reference

VisibilityIterator2 iterates through one or more readonly MeasurementSets. More...

#include <TransformingVi2.h>

Inheritance diagram for casa::vi::TransformingVi2:

List of all members.

Public Member Functions
	TransformingVi2 (ViImplementation2 *inputVi)
virtual	~TransformingVi2 ()=0
	Destructor.
virtual void	origin ()
	+==================================+ | | | Iteration Control and Monitoring | | | +==================================+
virtual Bool	more () const
virtual void	next ()
virtual Subchunk	getSubchunkId () const
virtual void	originChunks (Bool forceRewind=False)
	Methods to control chunk iterator.
virtual Bool	moreChunks () const
virtual void	nextChunk ()
virtual Bool	isWritable () const
virtual Double	getInterval () const
	Return the time interval (in seconds) used for iteration.
virtual void	setInterval (Double timeInterval)
virtual void	setFrequencySelections (const FrequencySelections &selection)
	Select the channels to be returned.
virtual void	setRowBlocking (Int nRows)
	Set the 'blocking' size for returning data.
virtual Bool	existsColumn (VisBufferComponent2 id) const
virtual const Block< Int > &	getSortColumns () const
virtual Bool	isNewArrayId () const
virtual Bool	isNewFieldId () const
virtual Bool	isNewMs () const
virtual Bool	isNewSpectralWindow () const
virtual Int	nRows () const
	Return the number of rows in the current iteration.
virtual void	getRowIds (Vector< uInt > &rowids) const
	Return the row ids as from the original root table.
virtual VisBuffer2 *	getVisBuffer ()
virtual void	antenna1 (Vector< Int > &ant1) const
	+=========================+ | | | Subchunk Data Accessors | | | +=========================+
virtual void	antenna2 (Vector< Int > &ant2) const
	Return antenna2.
virtual void	corrType (Vector< Int > &corrTypes) const
	Return the correlation type (returns Stokes enums)
virtual Int	dataDescriptionId () const
	Return current DataDescription Id.
virtual void	exposure (Vector< Double > &expo) const
	Return actual time interval.
virtual void	feed1 (Vector< Int > &fd1) const
	Return feed1.
virtual void	feed2 (Vector< Int > &fd2) const
	Return feed2.
virtual void	fieldIds (Vector< Int > &) const
	Return the current FieldId.
virtual void	arrayIds (Vector< Int > &) const
	Return the current ArrayId.
virtual String	fieldName () const
	Return the current Field Name.
virtual void	flag (Cube< Bool > &flags) const
	Return flag for each polarization, channel and row.
virtual void	flag (Matrix< Bool > &flags) const
	Return flag for each channel & row.
virtual Bool	flagCategoryExists () const
	Determine whether FLAG_CATEGORY is valid.
virtual void	flagCategory (Array< Bool > &flagCategories) const
	Return flags for each polarization, channel, category, and row.
virtual void	flagRow (Vector< Bool > &rowflags) const
	Return row flag.
virtual void	observationId (Vector< Int > &obsids) const
	Return the OBSERVATION_IDs.
virtual Int	polarizationId () const
	Return current Polarization Id.
virtual void	processorId (Vector< Int > &procids) const
	Return the PROCESSOR_IDs.
virtual void	scan (Vector< Int > &scans) const
	Return scan number.
virtual String	sourceName () const
	Return the current Source Name.
virtual void	stateId (Vector< Int > &stateids) const
	Return the STATE_IDs.
virtual void	jonesC (Vector< SquareMatrix< Complex, 2 > > &cjones) const
	Return feed configuration matrix for specified antenna.
virtual Int	polFrame () const
	Return frame for polarization (returns PolFrame enum)
virtual void	sigma (Vector< Float > &sig) const
	Return sigma.
virtual void	sigmaMat (Matrix< Float > &sigmat) const
	Return sigma matrix (pol-dep)
virtual Int	spectralWindow () const
	Return current SpectralWindow.
virtual void	spectralWindows (Vector< Int > &spws) const
virtual void	time (Vector< Double > &t) const
	Return MJD midpoint of interval.
virtual void	timeCentroid (Vector< Double > &t) const
	Return MJD centroid of interval.
virtual void	timeInterval (Vector< Double > &ti) const
	Return nominal time interval.
virtual void	uvw (Matrix< Double > &uvwmat) const
	Return u,v and w (in meters)
virtual void	visibilityCorrected (Cube< Complex > &vis) const
	Return the visibilities as found in the MS, Cube (npol,nchan,nrow).
virtual void	visibilityModel (Cube< Complex > &vis) const
virtual void	visibilityObserved (Cube< Complex > &vis) const
virtual void	floatData (Cube< Float > &fcube) const
	Return FLOAT_DATA as a Cube (npol, nchan, nrow) if found in the MS.
virtual IPosition	visibilityShape () const
	Return the visibility 4-vector of polarizations for each channel.
virtual void	weight (Vector< Float > &wt) const
	Return weight.
virtual void	weightMat (Matrix< Float > &wtmat) const
	Returns the nPol_p x curNumRow_p weight matrix.
virtual Bool	weightSpectrumExists () const
	Determine whether WEIGHT_SPECTRUM exists.
virtual void	weightSpectrum (Cube< Float > &wtsp) const
	Return weightspectrum (a weight for each channel)
virtual Bool	allBeamOffsetsZero () const
	Return the number of sub-intervals in the current chunk.
virtual MDirection	azel0 (Double time) const
	Return the antenna AZ/EL Vector (nant)
virtual const Vector < MDirection > &	azel (Double time) const
virtual const Vector< Float > &	feed_pa (Double time) const
	Return feed parallactic angles Vector (nant) (1 feed/ant)
virtual const Cube < RigidVector< Double, 2 > > &	getBeamOffsets () const
	Return a cube containing pairs of coordinate offsets for each receptor of each feed (values are in radians, coordinate system is fixed with antenna and is the same one as used to define the BEAM_OFFSET parameter in the feed table).
virtual Double	hourang (Double time) const
	Return the hour angle for the specified time.
virtual const Float &	parang0 (Double time) const
	Return nominal parallactic angle at specified time (does not include feed position angle offset--see feed_pa) A global value for all antennas (e.g., small array)
virtual const Vector< Float > &	parang (Double time) const
	Per antenna:
virtual const MDirection &	phaseCenter () const
	Return the current phase center as an MDirection.
virtual const Cube< Double > &	receptorAngles () const
	Return receptor angles for all antennae and feeds First axis of the cube is a receptor number, 2nd is antennaId, 3rd is feedId Note: the method is intended to provide an access to MSIter::receptorAngles for VisBuffer in the multi-feed case.
virtual const Vector< String > &	antennaMounts () const
	+=========================+ | | | Chunk and MS Level Data | | | +=========================+
virtual MEpoch	getEpoch () const
virtual const VisImagingWeight &	getImagingWeightGenerator () const
	Return imaging weight (a weight for each channel) virtual Matrix<Float> & imagingWeight (Matrix<Float> & wt) const;.
virtual MFrequency::Types	getObservatoryFrequencyType () const
virtual MPosition	getObservatoryPosition () const
virtual Vector< Float >	getReceptor0Angle ()
virtual Int	getReportingFrameOfReference () const
virtual void	setReportingFrameOfReference (Int frame)
virtual Vector< Int >	getChannels (Double time, Int frameOfReference) const
virtual Vector< Int >	getCorrelations () const
virtual Vector< Double >	getFrequencies (Double time, Int frameOfReference) const
virtual void	dataDescriptionIds (Vector< Int > &) const
virtual Int	msId () const
	reference to actual ms in interator
virtual const MeasurementSet &	ms () const
virtual Int	getNMs () const
virtual void	slurp () const
	Call to use the slurp i/o method for all scalar columns.
virtual const vi::SubtableColumns &	subtableColumns () const
	Access the current ROMSColumns object in MSIter.
virtual const SpectralWindowChannels &	getSpectralWindowChannels (Int msId, Int spectralWindowId) const
	get back the selected spectral windows and spectral channels for current ms
virtual void	useImagingWeight (const VisImagingWeight &imWgt)
	assign a VisImagingWeight object to this iterator
virtual Int	nAntennas () const
	Return number of antennasm spws, polids, ddids.
virtual Int	nDataDescriptionIds () const
virtual Int	nPolarizations () const
virtual Int	nRowsInChunk () const
virtual Int	nRowsViWillSweep () const
virtual Int	nSpectralWindows () const
virtual void	writeBackChanges (VisBuffer2 *vb)
	+-------------------+ | | | Writeback Methods | | | +-------------------+
virtual void	writeFlag (const Matrix< Bool > &flag)
	Write/modify the flags in the data.
virtual void	writeFlag (const Cube< Bool > &flag)
	Write/modify the flags in the data.
virtual void	writeFlagRow (const Vector< Bool > &rowflags)
	Write/modify the flag row column; dimension Vector (nrow)
virtual void	writeFlagCategory (const Array< Bool > &fc)
virtual void	writeVisCorrected (const Cube< Complex > &vis)
	Write/modify the visibilities.
virtual void	writeVisModel (const Cube< Complex > &vis)
virtual void	writeVisObserved (const Cube< Complex > &vis)
virtual void	writeWeight (const Matrix< Float > &wt)
	Write/modify the weights.
virtual void	writeWeightSpectrum (const Cube< Float > &wtsp)
	Write/modify the weightMat virtual void writeWeightMat (const Matrix<Float> & wtmat);.
virtual void	writeSigma (const Matrix< Float > &sig)
	Write/modify the Sigma.
virtual void	writeModel (const RecordInterface &rec, Bool iscomponentlist=True, Bool incremental=False)
	Write/modify the ncorr x nrow SigmaMat.
Static Public Member Functions
static void	azel0Calculate (Double time, MSDerivedValues &msd, MDirection &azel0, const MEpoch &mEpoch0)
static void	azelCalculate (Double time, MSDerivedValues &msd, Vector< MDirection > &azel, Int nAnt, const MEpoch &mEpoch0)
static Vector< Float >	feed_paCalculate (Double time, MSDerivedValues &msd, Int nAntennas, const MEpoch &mEpoch0, const Vector< Float > &receptor0Angle)
static Double	hourangCalculate (Double time, MSDerivedValues &msd, const MEpoch &mEpoch0)
static Float	parang0Calculate (Double time, MSDerivedValues &msd, const MEpoch &epoch0)
static Vector< Float >	parangCalculate (Double time, MSDerivedValues &msd, int nAntennas, const MEpoch mEpoch0)
Protected Member Functions
ViImplementation2 *	getVii () const
void	setVisBuffer (VisBuffer2 *vb)
Private Attributes
ViImplementation2 *	inputVii_p
VisBuffer2 *	vb_p

---

Detailed Description

VisibilityIterator2 iterates through one or more readonly MeasurementSets.

Intended use:

Public interface

Review Status

Date Reviewed:

yyyy/mm/dd

Prerequisite

• MSIter
• MeasurementSet
• VisSet

Etymology

The VisibilityIterator2 is a readonly iterator returning visibilities

Synopsis

VisibilityIterator2 provides iteration with various sort orders for one or more MSs. It has member functions to retrieve the fields commonly needed in synthesis calibration and imaging.

One should use VisBuffer to access chunks of data.

Example

Motivation

For imaging and calibration you need to access an MS in some consistent order (by field, spectralwindow, time interval etc.). This class provides that access.

Thrown Exceptions

To Do

• cleanup the currently dual interface for visibilities and flags
• sort out what to do with weights when interpolating

Definition at line 106 of file TransformingVi2.h.

---

Constructor & Destructor Documentation

casa::vi::TransformingVi2::TransformingVi2

(

ViImplementation2 *

inputVi

)

virtual casa::vi::TransformingVi2::~TransformingVi2

(

)

[pure virtual]

Destructor.

---

Member Function Documentation

virtual Bool casa::vi::TransformingVi2::allBeamOffsetsZero

(

)

const [virtual]

Return the number of sub-intervals in the current chunk.

+------------------------+ | | | Angular Data Providers | | | +------------------------+

True if all elements of the cube returned by getBeamOffsets are zero

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::antenna1

(

Vector< Int > &

ant1

)

const [virtual]

+=========================+ | | | Subchunk Data Accessors | | | +=========================+

Return antenna1

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::antenna2

(

Vector< Int > &

ant2

)

const [virtual]

Return antenna2.

Implements casa::vi::ViImplementation2.

virtual const Vector<String>& casa::vi::TransformingVi2::antennaMounts

(

)

const [virtual]

+=========================+ | | | Chunk and MS Level Data | | | +=========================+

return a string mount identifier for each antenna

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::arrayIds

(

Vector< Int > &

)

const [virtual]

Return the current ArrayId.

Implements casa::vi::ViImplementation2.

virtual const Vector<MDirection>& casa::vi::TransformingVi2::azel

(

Double

time

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual MDirection casa::vi::TransformingVi2::azel0

(

Double

time

)

const [virtual]

Return the antenna AZ/EL Vector (nant)

Implements casa::vi::ViImplementation2.

static void casa::vi::TransformingVi2::azel0Calculate	(	Double	time,
		MSDerivedValues &	msd,
		MDirection &	azel0,
		const MEpoch &	mEpoch0
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

static void casa::vi::TransformingVi2::azelCalculate	(	Double	time,
		MSDerivedValues &	msd,
		Vector< MDirection > &	azel,
		Int	nAnt,
		const MEpoch &	mEpoch0
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::corrType

(

Vector< Int > &

corrTypes

)

const [virtual]

Return the correlation type (returns Stokes enums)

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::dataDescriptionId

(

)

const [virtual]

Return current DataDescription Id.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::dataDescriptionIds

(

Vector< Int > &

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::existsColumn

(

VisBufferComponent2

id

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::exposure

(

Vector< Double > &

expo

)

const [virtual]

Return actual time interval.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::feed1

(

Vector< Int > &

fd1

)

const [virtual]

Return feed1.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::feed2

(

Vector< Int > &

fd2

)

const [virtual]

Return feed2.

Implements casa::vi::ViImplementation2.

virtual const Vector<Float>& casa::vi::TransformingVi2::feed_pa

(

Double

time

)

const [virtual]

Return feed parallactic angles Vector (nant) (1 feed/ant)

Implements casa::vi::ViImplementation2.

static Vector<Float> casa::vi::TransformingVi2::feed_paCalculate	(	Double	time,
		MSDerivedValues &	msd,
		Int	nAntennas,
		const MEpoch &	mEpoch0,
		const Vector< Float > &	receptor0Angle
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::fieldIds

(

Vector< Int > &

)

const [virtual]

Return the current FieldId.

Implements casa::vi::ViImplementation2.

virtual String casa::vi::TransformingVi2::fieldName

(

)

const [virtual]

Return the current Field Name.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::flag

(

Cube< Bool > &

flags

)

const [virtual]

Return flag for each polarization, channel and row.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::flag

(

Matrix< Bool > &

flags

)

const [virtual]

Return flag for each channel & row.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::flagCategory

(

Array< Bool > &

flagCategories

)

const [virtual]

Return flags for each polarization, channel, category, and row.

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::flagCategoryExists

(

)

const [virtual]

Determine whether FLAG_CATEGORY is valid.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::flagRow

(

Vector< Bool > &

rowflags

)

const [virtual]

Return row flag.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::floatData

(

Cube< Float > &

fcube

)

const [virtual]

Return FLOAT_DATA as a Cube (npol, nchan, nrow) if found in the MS.

Implements casa::vi::ViImplementation2.

virtual const Cube<RigidVector<Double, 2> >& casa::vi::TransformingVi2::getBeamOffsets

(

)

const [virtual]

Return a cube containing pairs of coordinate offsets for each receptor of each feed (values are in radians, coordinate system is fixed with antenna and is the same one as used to define the BEAM_OFFSET parameter in the feed table).

The cube axes are receptor, antenna, feed.

Implements casa::vi::ViImplementation2.

virtual Vector<Int> casa::vi::TransformingVi2::getChannels	(	Double	time,
		Int	frameOfReference
	)		const [virtual]

Implements casa::vi::ViImplementation2.

virtual Vector<Int> casa::vi::TransformingVi2::getCorrelations

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual MEpoch casa::vi::TransformingVi2::getEpoch

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Vector<Double> casa::vi::TransformingVi2::getFrequencies	(	Double	time,
		Int	frameOfReference
	)		const [virtual]

Implements casa::vi::ViImplementation2.

virtual const VisImagingWeight& casa::vi::TransformingVi2::getImagingWeightGenerator

(

)

const [virtual]

Return imaging weight (a weight for each channel) virtual Matrix<Float> & imagingWeight (Matrix<Float> & wt) const;.

Implements casa::vi::ViImplementation2.

virtual Double casa::vi::TransformingVi2::getInterval

(

)

const [virtual]

Return the time interval (in seconds) used for iteration.

This is not the same as the INTERVAL column. Setting the the interval requires calling origin chunks before performing further iterator.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::getNMs

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual MFrequency::Types casa::vi::TransformingVi2::getObservatoryFrequencyType

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual MPosition casa::vi::TransformingVi2::getObservatoryPosition

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Vector<Float> casa::vi::TransformingVi2::getReceptor0Angle

(

)

[virtual]

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::getReportingFrameOfReference

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::getRowIds

(

Vector< uInt > &

rowids

)

const [virtual]

Return the row ids as from the original root table.

This is useful to find correspondance between a given row in this iteration to the original ms row

Implements casa::vi::ViImplementation2.

virtual const Block<Int>& casa::vi::TransformingVi2::getSortColumns

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual const SpectralWindowChannels& casa::vi::TransformingVi2::getSpectralWindowChannels	(	Int	msId,
		Int	spectralWindowId
	)		const [virtual]

get back the selected spectral windows and spectral channels for current ms

Implements casa::vi::ViImplementation2.

virtual Subchunk casa::vi::TransformingVi2::getSubchunkId

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

ViImplementation2* casa::vi::TransformingVi2::getVii

(

)

const [protected]

virtual VisBuffer2* casa::vi::TransformingVi2::getVisBuffer

(

)

[virtual]

Implements casa::vi::ViImplementation2.

virtual Double casa::vi::TransformingVi2::hourang

(

Double

time

)

const [virtual]

Return the hour angle for the specified time.

Implements casa::vi::ViImplementation2.

static Double casa::vi::TransformingVi2::hourangCalculate	(	Double	time,
		MSDerivedValues &	msd,
		const MEpoch &	mEpoch0
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::isNewArrayId

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::isNewFieldId

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::isNewMs

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::isNewSpectralWindow

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::isWritable

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::jonesC

(

Vector< SquareMatrix< Complex, 2 > > &

cjones

)

const [virtual]

Return feed configuration matrix for specified antenna.

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::more

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::AveragingTvi2.

virtual Bool casa::vi::TransformingVi2::moreChunks

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::AveragingTvi2.

virtual const MeasurementSet& casa::vi::TransformingVi2::ms

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::msId

(

)

const [virtual]

reference to actual ms in interator

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nAntennas

(

)

const [virtual]

Return number of antennasm spws, polids, ddids.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nDataDescriptionIds

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::next

(

)

[virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2, and casa::vi::AveragingTvi2.

virtual void casa::vi::TransformingVi2::nextChunk

(

)

[virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::AveragingTvi2.

virtual Int casa::vi::TransformingVi2::nPolarizations

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nRows

(

)

const [virtual]

Return the number of rows in the current iteration.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nRowsInChunk

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nRowsViWillSweep

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::nSpectralWindows

(

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::observationId

(

Vector< Int > &

obsids

)

const [virtual]

Return the OBSERVATION_IDs.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::origin

(

)

[virtual]

+==================================+ | | | Iteration Control and Monitoring | | | +==================================+

Methods to control and monitor subchunk iteration

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2, and casa::vi::AveragingTvi2.

virtual void casa::vi::TransformingVi2::originChunks

(

Bool

forceRewind = False

)

[virtual]

Methods to control chunk iterator.

Implements casa::vi::ViImplementation2.

virtual const Vector<Float>& casa::vi::TransformingVi2::parang

(

Double

time

)

const [virtual]

Per antenna:

Implements casa::vi::ViImplementation2.

virtual const Float& casa::vi::TransformingVi2::parang0

(

Double

time

)

const [virtual]

Return nominal parallactic angle at specified time (does not include feed position angle offset--see feed_pa) A global value for all antennas (e.g., small array)

Implements casa::vi::ViImplementation2.

static Float casa::vi::TransformingVi2::parang0Calculate	(	Double	time,
		MSDerivedValues &	msd,
		const MEpoch &	epoch0
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

static Vector<Float> casa::vi::TransformingVi2::parangCalculate	(	Double	time,
		MSDerivedValues &	msd,
		int	nAntennas,
		const MEpoch	mEpoch0
	)		[static]

Reimplemented from casa::vi::ViImplementation2.

virtual const MDirection& casa::vi::TransformingVi2::phaseCenter

(

)

const [virtual]

Return the current phase center as an MDirection.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::polarizationId

(

)

const [virtual]

Return current Polarization Id.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::polFrame

(

)

const [virtual]

Return frame for polarization (returns PolFrame enum)

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::processorId

(

Vector< Int > &

procids

)

const [virtual]

Return the PROCESSOR_IDs.

Implements casa::vi::ViImplementation2.

virtual const Cube<Double>& casa::vi::TransformingVi2::receptorAngles

(

)

const [virtual]

Return receptor angles for all antennae and feeds First axis of the cube is a receptor number, 2nd is antennaId, 3rd is feedId Note: the method is intended to provide an access to MSIter::receptorAngles for VisBuffer in the multi-feed case.

It may be worth to change the interface of feed_pa to return the information for all feeds.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::scan

(

Vector< Int > &

scans

)

const [virtual]

Return scan number.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::setFrequencySelections

(

const FrequencySelections &

selection

)

[virtual]

Select the channels to be returned.

Requires calling originChunks before performing additional iteration.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::setInterval

(

Double

timeInterval

)

[virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::setReportingFrameOfReference

(

Int

frame

)

[virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::setRowBlocking

(

Int

nRows

)

[virtual]

Set the 'blocking' size for returning data.

With the default (0) only a single integration is returned at a time, this is what is currently required for the calibration software. With blocking set, up to nRows can be returned in one go. The chunk size determines the actual maximum.

Implements casa::vi::ViImplementation2.

void casa::vi::TransformingVi2::setVisBuffer

(

VisBuffer2 *

vb

)

[protected]

virtual void casa::vi::TransformingVi2::sigma

(

Vector< Float > &

sig

)

const [virtual]

Return sigma.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::sigmaMat

(

Matrix< Float > &

sigmat

)

const [virtual]

Return sigma matrix (pol-dep)

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::slurp

(

)

const [virtual]

Call to use the slurp i/o method for all scalar columns.

This will set the BucketCache cache size to the full column length and cause the full column to be cached in memory, if any value of the column is used. In case of out-of-memory, it will automatically fall-back on the smaller cache size. Slurping the column is to be considered as a work-around for the Table i/o code, which uses BucketCache and performs extremely bad for random access. Slurping is useful when iterating non-sequentially an MS or parts of an MS, it is not tested with multiple MSs.

Implements casa::vi::ViImplementation2.

virtual String casa::vi::TransformingVi2::sourceName

(

)

const [virtual]

Return the current Source Name.

Implements casa::vi::ViImplementation2.

virtual Int casa::vi::TransformingVi2::spectralWindow

(

)

const [virtual]

Return current SpectralWindow.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::spectralWindows

(

Vector< Int > &

spws

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::stateId

(

Vector< Int > &

stateids

)

const [virtual]

Return the STATE_IDs.

Implements casa::vi::ViImplementation2.

virtual const vi::SubtableColumns& casa::vi::TransformingVi2::subtableColumns

(

)

const [virtual]

Access the current ROMSColumns object in MSIter.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::time

(

Vector< Double > &

t

)

const [virtual]

Return MJD midpoint of interval.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::timeCentroid

(

Vector< Double > &

t

)

const [virtual]

Return MJD centroid of interval.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::timeInterval

(

Vector< Double > &

ti

)

const [virtual]

Return nominal time interval.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::useImagingWeight

(

const VisImagingWeight &

imWgt

)

[virtual]

assign a VisImagingWeight object to this iterator

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::uvw

(

Matrix< Double > &

uvwmat

)

const [virtual]

Return u,v and w (in meters)

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::visibilityCorrected

(

Cube< Complex > &

vis

)

const [virtual]

Return the visibilities as found in the MS, Cube (npol,nchan,nrow).

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::visibilityModel

(

Cube< Complex > &

vis

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::visibilityObserved

(

Cube< Complex > &

vis

)

const [virtual]

Implements casa::vi::ViImplementation2.

virtual IPosition casa::vi::TransformingVi2::visibilityShape

(

)

const [virtual]

Return the visibility 4-vector of polarizations for each channel.

If the MS doesn't contain all polarizations, it is assumed it contains one or two parallel hand polarizations.

virtual void visibilityCorrected (Matrix<CStokesVector> & vis) const; virtual void visibilityModel (Matrix<CStokesVector> & vis) const; virtual void visibilityObserved (Matrix<CStokesVector> & vis) const;

Return the shape of the visibility Cube

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::weight

(

Vector< Float > &

wt

)

const [virtual]

Return weight.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::weightMat

(

Matrix< Float > &

wtmat

)

const [virtual]

Returns the nPol_p x curNumRow_p weight matrix.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::weightSpectrum

(

Cube< Float > &

wtsp

)

const [virtual]

Return weightspectrum (a weight for each channel)

Implements casa::vi::ViImplementation2.

virtual Bool casa::vi::TransformingVi2::weightSpectrumExists

(

)

const [virtual]

Determine whether WEIGHT_SPECTRUM exists.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::writeBackChanges

(

VisBuffer2 *

vb

)

[virtual]

+-------------------+ | | | Writeback Methods | | | +-------------------+

This method writes back any changed (dirty) components of the provided VisBuffer and is the preferred method for writing data out.

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeFlag

(

const Matrix< Bool > &

flag

)

[virtual]

Write/modify the flags in the data.

This will flag all channels in the original data that contributed to the output channel in the case of channel averaging. All polarizations have the same flag value.

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeFlag

(

const Cube< Bool > &

flag

)

[virtual]

Write/modify the flags in the data.

This writes the flags as found in the MS, Cube (npol,nchan,nrow), where nrow is the number of rows in the current iteration (given by nRow ()).

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeFlagCategory

(

const Array< Bool > &

fc

)

[virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeFlagRow

(

const Vector< Bool > &

rowflags

)

[virtual]

Write/modify the flag row column; dimension Vector (nrow)

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeModel	(	const RecordInterface &	rec,
		Bool	iscomponentlist = True,
		Bool	incremental = False
	)		[virtual]

Write/modify the ncorr x nrow SigmaMat.

virtual void writeSigmaMat (const Matrix<Float> & sigmat);

Write the information needed to generate on-the-fly model visibilities.

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeSigma

(

const Matrix< Float > &

sig

)

[virtual]

Write/modify the Sigma.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::writeVisCorrected

(

const Cube< Complex > &

vis

)

[virtual]

Write/modify the visibilities.

This is possibly only for a 'reference' MS which has a new DATA column. The first axis of the matrix should equal the selected number of channels in the original MS. If the MS does not contain all polarizations, only the parallel hand polarizations are used. virtual void writeVisCorrected (const Matrix<CStokesVector> & visibilityStokes); virtual void writeVisModel (const Matrix<CStokesVector> & visibilityStokes); virtual void writeVisObserved (const Matrix<CStokesVector> & visibilityStokes);

Write/modify the visibilities This writes the data as found in the MS, Cube (npol,nchan,nrow).

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeVisModel

(

const Cube< Complex > &

vis

)

[virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeVisObserved

(

const Cube< Complex > &

vis

)

[virtual]

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

virtual void casa::vi::TransformingVi2::writeWeight

(

const Matrix< Float > &

wt

)

[virtual]

Write/modify the weights.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::TransformingVi2::writeWeightSpectrum

(

const Cube< Float > &

wtsp

)

[virtual]

Write/modify the weightMat virtual void writeWeightMat (const Matrix<Float> & wtmat);.

Write/modify the weightSpectrum

Implements casa::vi::ViImplementation2.

Reimplemented in casa::vi::FinalTvi2.

---

Member Data Documentation

ViImplementation2* casa::vi::TransformingVi2::inputVii_p [private]

Definition at line 557 of file TransformingVi2.h.

VisBuffer2* casa::vi::TransformingVi2::vb_p [private]

Definition at line 558 of file TransformingVi2.h.

---

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

• code/synthesis/MSVis/TransformingVi2.h