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

#include <VisibilityIteratorImplAsync2.h>

Inheritance diagram for casa::vi::VisibilityIteratorImplAsync2:

Public Member Functions
	VisibilityIteratorImplAsync2 (VisibilityIterator2 *rovi, const casacore::Block< casacore::MeasurementSet > &mss, const casacore::Block< casacore::Int > &sortColumns, casacore::Bool addDefaultSortCols, casacore::Double timeInterval, casacore::Bool createVb, casacore::Bool isWritable)
	VLAT should not access private parts, especially variables. More...

	VisibilityIteratorImplAsync2 (const VisibilityIteratorImplAsync2 &other, VisibilityIterator2 *rovi)
	Copy construct. More...

virtual	~VisibilityIteratorImplAsync2 ()
	Destructor. More...

virtual void	origin ()
	Members. More...

virtual void	originChunks ()
	Reset iterator to true start of data (first chunk) More...

virtual void	setInterval (casacore::Double timeInterval)
	Return the time interval (in seconds) used for iteration. More...

virtual void	setRowBlocking (casacore::Int nRows=0)
	Set the 'blocking' size for returning data. More...

virtual casacore::Bool	existsColumn (VisBufferComponent2 id) const

virtual casacore::Bool	more () const
	Return false if no more data (in current chunk) More...

virtual Subchunk	getSubchunkId () const

virtual void	setFrequencySelections (const FrequencySelections &selection)
	Select the channels to be returned. More...

virtual casacore::Bool	moreChunks () const
	Return false if no more 'Chunks' of data left. More...

virtual casacore::Bool	isNewArrayId () const
	Check if ms has change since last iteration. More...

virtual casacore::Bool	isNewFieldId () const

virtual casacore::Bool	isNewMs () const

virtual casacore::Bool	isNewSpectralWindow () const

virtual casacore::Int	msId () const
	reference to actual ms in interator More...

virtual const casacore::MeasurementSet &	ms () const
	reference to actual ms in interator More...

virtual void	nextChunk ()
	Advance to the next Chunk of data. More...

virtual void	antenna1 (casacore::Vector< casacore::Int > &ant1) const
	Return antenna1. More...

virtual void	antenna2 (casacore::Vector< casacore::Int > &ant2) const
	Return antenna2. More...

virtual void	feed1 (casacore::Vector< casacore::Int > &fd1) const
	Return feed1. More...

virtual void	feed2 (casacore::Vector< casacore::Int > &fd2) const
	Return feed2. More...

void	jonesC (casacore::Vector< casacore::SquareMatrix< casacore::Complex, 2 > > &cjones) const
	Return feed configuration matrix for specified antenna. More...

virtual const casacore::Cube < casacore::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. More...

virtual const casacore::Vector < casacore::String > &	antennaMounts () const
	return a string mount identifier for each antenna More...

virtual const casacore::Cube < casacore::RigidVector < casacore::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). More...

virtual casacore::Int	fieldId () const
	Return the current FieldId. More...

virtual casacore::Int	arrayId () const
	Return the current ArrayId. More...

virtual void	flag (casacore::Cube< casacore::Bool > &flags) const
	Return flag for each polarization, channel and row. More...

virtual void	flag (casacore::Matrix< casacore::Bool > &flags) const
	Return flag for each channel & row. More...

casacore::Bool	existsFlagCategory () const
	Determine whether FLAG_CATEGORY is valid. More...

virtual void	flagCategory (casacore::Array< casacore::Bool > &flagCategories) const
	Return flags for each polarization, channel, category, and row. More...

virtual void	flagRow (casacore::Vector< casacore::Bool > &rowflags) const
	Return row flag. More...

virtual void	scan (casacore::Vector< casacore::Int > &scans) const
	Return scan number. More...

virtual void	observationId (casacore::Vector< casacore::Int > &obsids) const
	Return the OBSERVATION_IDs. More...

virtual void	processorId (casacore::Vector< casacore::Int > &procids) const
	Return the PROCESSOR_IDs. More...

virtual void	stateId (casacore::Vector< casacore::Int > &stateids) const
	Return the STATE_IDs. More...

virtual const casacore::MDirection &	phaseCenter () const
	Return the current phase center as an MDirection. More...

virtual casacore::Int	polFrame () const
	Return frame for polarization (returns PolFrame enum) More...

virtual void	corrType (casacore::Vector< casacore::Int > &corrTypes) const
	Return the correlation type (returns casacore::Stokes enums) More...

virtual void	sigma (casacore::Vector< casacore::Float > &sig) const
	Return sigma. More...

virtual void	sigmaMat (casacore::Matrix< casacore::Float > &sigmat) const
	Return sigma matrix (pol-dep) More...

virtual casacore::Int	spectralWindow () const
	Return current SpectralWindow. More...

virtual casacore::Int	polarizationId () const
	Return current Polarization Id. More...

virtual casacore::Int	dataDescriptionId () const
	Return current DataDescription Id. More...

virtual void	time (casacore::Vector< casacore::Double > &t) const
	Return MJD midpoint of interval. More...

virtual void	timeCentroid (casacore::Vector< casacore::Double > &t) const
	Return MJD centroid of interval. More...

virtual void	timeInterval (casacore::Vector< casacore::Double > &ti) const
	Return nominal time interval. More...

virtual void	exposure (casacore::Vector< casacore::Double > &expo) const
	Return actual time interval. More...

virtual void	visibilityCorrected (casacore::Cube< casacore::Complex > &vis) const
	Return the visibilities as found in the casacore::MS, casacore::Cube (npol,nchan,nrow). More...

virtual void	visibilityModel (casacore::Cube< casacore::Complex > &vis) const

virtual void	visibilityObserved (casacore::Cube< casacore::Complex > &vis) const

virtual void	floatData (casacore::Cube< casacore::Float > &fcube) const
	Return FLOAT_DATA as a casacore::Cube (npol, nchan, nrow) if found in the MS. More...

virtual void	visibilityCorrected (casacore::Matrix< CStokesVector > &vis) const
	Return the visibility 4-vector of polarizations for each channel. More...

virtual void	visibilityModel (casacore::Matrix< CStokesVector > &vis) const

virtual void	visibilityObserved (casacore::Matrix< CStokesVector > &vis) const

virtual casacore::IPosition	visibilityShape () const
	Return the shape of the visibility Cube. More...

virtual void	uvw (casacore::Matrix< casacore::Double > &uvwmat) const
	Return u,v and w (in meters) More...

virtual void	weight (casacore::Vector< casacore::Float > &wt) const
	Return weight. More...

virtual void	weightMat (casacore::Matrix< casacore::Float > &wtmat) const
	Returns the nPol_p x curNumRow_p weight matrix. More...

casacore::Bool	existsWeightSpectrum () const
	Determine whether WEIGHT_SPECTRUM exists. More...

virtual void	weightSpectrum (casacore::Cube< casacore::Float > &wtsp) const
	Return weightspectrum (a weight for each channel) More...

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

virtual casacore::Bool	newFieldId () const
	Return true if FieldId/Source has changed since last iteration. More...

virtual casacore::Bool	newArrayId () const
	Return true if arrayID has changed since last iteration. More...

virtual casacore::Bool	newSpectralWindow () const
	Return true if SpectralWindow has changed since last iteration. More...

virtual casacore::Int	nPolarizations () const
	Return the number of correlations in the current iteration. More...

virtual casacore::Int	nRows () const
	Return the number of rows in the current iteration. More...

virtual void	getRowIds (casacore::Vector< casacore::uInt > &rowids) const
	Return the row ids as from the original root table. More...

virtual casacore::Int	nRowsInChunk () const
	Return the numbers of rows in the current chunk. More...

virtual void	slurp () const
	Return the number of sub-intervals in the current chunk. More...

virtual const vi::SubtableColumns &	subtableColumns () const
	Get the spw, start and nchan for all the ms's is this Visiter that match the frequecy "freqstart-freqStep" and "freqEnd+freqStep" range Can help in doing channel selection above. More...

virtual const SpectralWindowChannels &	getSpectralWindowChannels (casacore::Int msId, casacore::Int spectralWindowId) const
	get back the selected spectral windows and spectral channels for current ms More...

virtual void	useImagingWeight (const VisImagingWeight &imWgt)
	assign a VisImagingWeight object to this iterator More...

virtual casacore::Int	numberAnt ()
	return number of Ant More...

virtual casacore::Int	numberCoh ()
	Return number of rows in all selected ms's. More...

virtual casacore::Int	numberSpw ()
	Return number of spws, polids, ddids. More...

virtual casacore::Int	numberPol ()

virtual casacore::Int	numberDDId ()

casacore::Int	getDataDescriptionId () const

const casacore::MeasurementSet &	getMeasurementSet () const

casacore::Int	getMeasurementSetId () const

casacore::Int	getNAntennas () const

virtual casacore::MEpoch	getEpoch () const
	virtual casacore::Vector<casacore::MPosition> antennaPositions () const; casacore::MSDerivedValues makeMsd (); More...

casacore::MFrequency::Types	getObservatoryFrequencyType () const

casacore::MPosition	getObservatoryPosition () const

casacore::Vector< casacore::Float >	getReceptor0Angle ()

virtual void	writeFlag (const casacore::Matrix< casacore::Bool > &flag)
	Write/modify the flags in the data. More...

virtual void	writeFlag (const casacore::Cube< casacore::Bool > &flag)
	Write/modify the flags in the data. More...

virtual void	writeFlagRow (const casacore::Vector< casacore::Bool > &rowflags)
	Write/modify the flag row column; dimension casacore::Vector (nrow) More...

void	writeFlagCategory (const casacore::Array< casacore::Bool > &fc)

void	writeVisCorrected (const casacore::Matrix< CStokesVector > &visibilityStokes)
	Write/modify the visibilities. More...

void	writeVisModel (const casacore::Matrix< CStokesVector > &visibilityStokes)

void	writeVisObserved (const casacore::Matrix< CStokesVector > &visibilityStokes)

virtual void	writeVisCorrected (const casacore::Cube< casacore::Complex > &vis)
	Write/modify the visibilities This writes the data as found in the casacore::MS, casacore::Cube (npol,nchan,nrow). More...

virtual void	writeVisModel (const casacore::Cube< casacore::Complex > &vis)

virtual void	writeVisObserved (const casacore::Cube< casacore::Complex > &vis)

virtual void	writeWeight (const casacore::Vector< casacore::Float > &wt)
	Write/modify the weights. More...

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

virtual void	writeWeightSpectrum (const casacore::Cube< casacore::Float > &wtsp)
	Write/modify the weightSpectrum. More...

virtual void	writeSigma (const casacore::Vector< casacore::Float > &sig)
	Write/modify the Sigma. More...

virtual void	writeSigmaMat (const casacore::Matrix< casacore::Float > &sigmat)
	Write/modify the ncorr x nrow SigmaMat. More...

virtual void	writeBackChanges (VisBuffer2 *)
	+----------------—+ \| \| \| Writeback Methods \| \| \| +----------------—+ More...

Public Member Functions inherited from casa::vi::VisibilityIteratorImpl2
	VisibilityIteratorImpl2 (const casacore::Block< const casacore::MeasurementSet * > &mss, const SortColumns &sortColumns, casacore::Double timeInterval, casacore::Bool isWritable, casacore::Bool useMSIter2=false)
	Default constructor - useful only to assign another iterator later VisibilityIteratorImpl2 (); More...

	VisibilityIteratorImpl2 (const VisibilityIteratorImpl2 &vii)

VisibilityIteratorImpl2 &	operator= (const VisibilityIteratorImpl2 &vii)

	VisibilityIteratorImpl2 (VisibilityIteratorImpl2 &&vii)

VisibilityIteratorImpl2 &	operator= (VisibilityIteratorImpl2 &&vii)

virtual	~VisibilityIteratorImpl2 ()
	Destructor. More...

std::unique_ptr < VisibilityIteratorImpl2 >	clone () const
	Members. More...

virtual casacore::String	ViiType () const override
	Report the the ViImplementation type TBD: indicate writable? More...

virtual casacore::Bool	isWritable () const override

virtual casacore::Double	getInterval () const override
	Return the time interval (in seconds) used for iteration. More...

virtual const SortColumns &	getSortColumns () const override

virtual casacore::Int	getNMs () const override

virtual VisBuffer2 *	getVisBuffer () const override

virtual casacore::String	msName () const override
	Name of the MS in the interator. More...

virtual void	next () override
	advance the iteration More...

virtual casacore::String	keyChange () const override
	Report Name of slowest column that changes at end of current iteration. More...

void	jonesC (casacore::Vector< casacore::SquareMatrix< casacore::Complex, 2 > > &cjones) const override
	Return feed configuration matrix for specified antenna. More...

virtual std::pair< bool, casacore::MDirection >	getPointingAngle (int antenna, double time) const override

virtual casacore::Bool	allBeamOffsetsZero () const override
	true if all elements of the cube returned by getBeamOffsets are zero More...

virtual const casacore::Vector < casacore::Float > &	feed_pa (casacore::Double time) const override
	Return feed parallactic angles casacore::Vector (nant) (1 feed/ant) More...

virtual const casacore::Float &	parang0 (casacore::Double time) const override
	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) More...

virtual const casacore::Vector < casacore::Float > &	parang (casacore::Double time) const override
	Per antenna: More...

virtual casacore::MDirection	azel0 (casacore::Double time) const override
	Return the antenna AZ/EL casacore::Vector(nant) More...

virtual const casacore::Vector < casacore::MDirection > &	azel (casacore::Double time) const override

virtual casacore::Double	hourang (casacore::Double time) const override
	Return the hour angle for the specified time. More...

virtual void	fieldIds (casacore::Vector< casacore::Int > &) const override
	Return the current FieldId. More...

virtual void	arrayIds (casacore::Vector< casacore::Int > &) const override
	Return the current ArrayId. More...

virtual casacore::String	fieldName () const override
	Return the current Field Name. More...

virtual casacore::String	sourceName () const override
	Return the current Source Name. More...

casacore::Bool	flagCategoryExists () const override
	Determine whether FLAG_CATEGORY is valid. More...

virtual void	sigma (casacore::Matrix< casacore::Float > &sig) const override
	Return sigma. More...

virtual void	spectralWindows (casacore::Vector< casacore::Int > &spws) const override

virtual void	dataDescriptionIds (casacore::Vector< casacore::Int > &ddis) const override

virtual casacore::Vector < casacore::Vector < casacore::Int > >	getAllSelectedSpws () const
	This will return all selected spwids for each ms attached with this iterator. More...

virtual void	weight (casacore::Matrix< casacore::Float > &wt) const override
	Return weight. More...

casacore::Bool	weightSpectrumExists () const override
	Determine whether WEIGHT_SPECTRUM exists. More...

casacore::Bool	sigmaSpectrumExists () const override
	Determine whether SIGMA_SPECTRUM exists. More...

virtual void	sigmaSpectrum (casacore::Cube< casacore::Float > &sigsp) const override
	Return sigmaspectrum(a sigma for each channel) More...

virtual void	setWeightScaling (casacore::CountedPtr< WeightScaling > weightscaling) override

virtual casacore::CountedPtr < WeightScaling >	getWeightScaling () const override

virtual casacore::Bool	hasWeightScaling () const override

const VisImagingWeight &	getImagingWeightGenerator () const override
	Return imaging weight (a weight for each channel) virtual casacore::Matrix<casacore::Float> & imagingWeight(casacore::Matrix<casacore::Float> & wt) const; More...

virtual casacore::Int	nAntennas () const override
	return number of Ant More...

virtual casacore::Int	nRowsViWillSweep () const override
	Return number of rows in all selected ms's. More...

virtual casacore::Int	nSpectralWindows () const override
	Return number of spws, polids, ddids. More...

virtual casacore::Int	nPolarizationIds () const override

virtual casacore::Int	nDataDescriptionIds () const override

casacore::MFrequency::Types	getObservatoryFrequencyType () const override

casacore::MPosition	getObservatoryPosition () const override

casacore::Vector< casacore::Float >	getReceptor0Angle () override

void	writeFlagCategory (const casacore::Array< casacore::Bool > &fc) override

virtual void	writeWeight (const casacore::Matrix< casacore::Float > &wt) override
	Write/modify the weights. More...

virtual void	initWeightSpectrum (const casacore::Cube< casacore::Float > &weightSpectrum) override
	Initialize the weightSpectrum column. More...

virtual void	writeSigmaSpectrum (const casacore::Cube< casacore::Float > &sigsp) override
	Write/modify the sigmaSpectrum. More...

virtual void	initSigmaSpectrum (const casacore::Cube< casacore::Float > &sigmaSpectrum) override
	Initialize the sigmaSpectrum column. More...

virtual void	writeSigma (const casacore::Matrix< casacore::Float > &sig) override
	Write/modify the Sigma. More...

virtual void	writeModel (const casacore::RecordInterface &rec, casacore::Bool iscomponentlist=true, casacore::Bool incremental=false) override
	Write/modify the ncorr x nrow SigmaMat. More...

const casacore::ROMSAntennaColumns &	antennaSubtablecols () const override

const casacore::ROMSDataDescColumns &	dataDescriptionSubtablecols () const override
	Access to dataDescription subtable. More...

const casacore::ROMSFeedColumns &	feedSubtablecols () const override
	Access to feed subtable. More...

const casacore::ROMSFieldColumns &	fieldSubtablecols () const override
	Access to field subtable. More...

const casacore::ROMSFlagCmdColumns &	flagCmdSubtablecols () const override
	Access to flagCmd subtable. More...

const casacore::ROMSHistoryColumns &	historySubtablecols () const override
	Access to history subtable. More...

const casacore::ROMSObservationColumns &	observationSubtablecols () const override
	Access to observation subtable. More...

const casacore::ROMSPointingColumns &	pointingSubtablecols () const override
	Access to pointing subtable. More...

const casacore::ROMSPolarizationColumns &	polarizationSubtablecols () const override
	Access to polarization subtable. More...

const casacore::ROMSProcessorColumns &	processorSubtablecols () const override
	Access to processor subtable. More...

const casacore::ROMSSpWindowColumns &	spectralWindowSubtablecols () const override
	Access to spectralWindow subtable. More...

const casacore::ROMSStateColumns &	stateSubtablecols () const override
	Access to state subtable. More...

const casacore::ROMSDopplerColumns &	dopplerSubtablecols () const override
	Access to doppler subtable. More...

const casacore::ROMSFreqOffsetColumns &	freqOffsetSubtablecols () const override
	Access to freqOffset subtable. More...

const casacore::ROMSSourceColumns &	sourceSubtablecols () const override
	Access to source subtable. More...

const casacore::ROMSSysCalColumns &	sysCalSubtablecols () const override
	Access to sysCal subtable. More...

const casacore::ROMSWeatherColumns &	weatherSubtablecols () const override
	Access to weather subtable. More...

Public Member Functions inherited from casa::vi::ViImplementation2
	ViImplementation2 (const ViImplementation2 &)=delete
	make noncopyable... More...

ViImplementation2 &	operator= (const ViImplementation2 &)=delete

	ViImplementation2 ()

virtual	~ViImplementation2 ()
	Destructor. More...

Protected Member Functions
void	attachColumnsSafe (const casacore::Table &t)

virtual void	attachColumns (const casacore::Table &t)
	attach the column objects to the currently selected table More...

virtual const casacore::Table	attachTable () const
	returns the table, to which columns are attached, can be overridden in derived classes More...

virtual void	advance ()
	advance the iteration More...

virtual void	applyPendingChanges ()

virtual void	configureNewChunk ()
	set the iteration state More...

virtual void	configureNewSubchunk ()
	set the currently selected table More...

const ChannelSelector *	createDefaultChannelSelector (casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId)

virtual const ChannelSelector *	determineChannelSelection (casacore::Double time)

casacore::Slice	findChannelsInRange (casacore::Double lowerFrequency, casacore::Double upperFrequency, const SpectralWindowChannels &spectralWindowChannels)

void	fillVisBuffer ()

template<typename T >
void	getColumnRows (const casacore::ArrayColumn< T > &column, casacore::Array< T > &array) const
	Methods to get the data out of a table column according to whatever selection criteria (e.g., slicing) is in effect. More...

template<typename T >
void	getColumnRowsMatrix (const casacore::ArrayColumn< T > &column, casacore::Matrix< T > &array) const

template<typename T >
void	getColumnRows (const casacore::ScalarColumn< T > &column, casacore::Vector< T > &array) const

casacore::Vector < casacore::Double >	getFrequencies (casacore::Double time, casacore::Int frameOfReference) const

casacore::Vector< casacore::Int >	getChannels (casacore::Double time, casacore::Int frameOfReference) const

casacore::Int	getReportingFrameOfReference () const

std::vector < casacore::MeasurementSet >	getMeasurementSets () const
	Returns the casacore::MS objects that this VI is iterating over. More...

const casacore::MSDerivedValues &	getMsd () const
	Provides access to the casacore::MS-derived values object. More...

const MsIterInfo &	getMsIterInfo () const

VisBufferImplAsync2 *	getVisBufferAsync () const
	Get privileged (non-const) access to the containing ROVI. More...

VisBufferAsyncWrapper2 *	getVisBufferWrapper () const

VisibilityIterator2 *	getViP () const

void	getVisibilityAsStokes (casacore::Matrix< CStokesVector > &visibilityStokes, const casacore::ArrayColumn< casacore::Complex > &column) const

virtual void	initialize (const casacore::Block< casacore::MeasurementSet > &mss)
	Ctor auxiliary method. More...

casacore::Bool	isInASelectedSpectralWindow () const
	Returns true if casacore::MS Iterator is currently pointing to a selected spectral window. More...

ChannelSelector *	makeChannelSelectorC (const FrequencySelection &selection, casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId)
	Creates a channel selection for the current subchunk based on the channel or frequency selection made by the user. More...

ChannelSelector *	makeChannelSelectorF (const FrequencySelection &selection, casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId)

casacore::MFrequency::Convert	makeFrequencyConverter (casacore::Double time, casacore::Int otherFrameOfReference, casacore::Bool toObservedFrame) const

virtual void	originChunks (casacore::Bool forceRewind)
	Method to reset the VI back to the start. More...

void	positionMsIterToASelectedSpectralWindow ()
	Advances the casacore::MS Iterator until it points at a spectral window that is part of the frequency selection. More...

void	readComplete ()

void	setReportingFrameOfReference (casacore::Int)
	Sets the default frequency reporting frame of reference. More...

virtual void	setTileCache ()
	Adjusts the tile cache for some columns so that the cache size is optimized for the current input state (e.g., a new data description). More...

virtual void	throwIfPendingChanges ()
	Throws exception if there is a pending (i.e., unapplied) change to the VI's properties. More...

casacore::Bool	usesTiledDataManager (const casacore::String &columnName, const casacore::MeasurementSet &ms) const
	Returns true if the named column uses a tiled data manager in the specified MS. More...

Protected Member Functions inherited from casa::vi::VisibilityIteratorImpl2
virtual void	allSpectralWindowsSelected (casacore::Vector< casacore::Int > &selectedWindows, casacore::Vector< casacore::Int > &nChannels) const

const ChannelSelector *	createDefaultChannelSelector (casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId)

virtual const vi::ChannelSelector *	determineChannelSelection (casacore::Double time, casacore::Int spectralWindowId=-1, casacore::Int polarizationId=-1, casacore::Int msId=-1) const

bool	fillFromVirtualModel (casacore::Cube< casacore::Complex > &value) const

casacore::Slice	findChannelsInRange (casacore::Double lowerFrequency, casacore::Double upperFrequency, const vi::SpectralWindowChannels &spectralWindowChannels) const

ChannelInfo	getChannelInformation (casacore::Bool now) const

ChannelInfo	getChannelInformationUsingFrequency (casacore::Bool now) const

template<typename T >
void	getColumnRows (const casacore::ScalarColumn< T > &column, casacore::Vector< T > &array) const
	Methods to get the data out of a table column according to whatever selection criteria (e.g., slicing) is in effect. More...

template<typename T >
void	getColumnRowsMatrix (const casacore::ArrayColumn< T > &column, casacore::Matrix< T > &array, casacore::Bool correlationSlicing) const

template<typename T >
void	getColumnRows (const casacore::ArrayColumn< T > &column, casacore::Array< T > &array) const

casacore::Vector < casacore::Double >	getFrequencies (casacore::Double time, casacore::Int frameOfReference, casacore::Int spectralWindowId, casacore::Int msId) const override

casacore::Vector< casacore::Int >	getChannels (casacore::Double time, casacore::Int frameOfReference, casacore::Int spectralWindowId, casacore::Int msId) const override

casacore::Vector< casacore::Int >	getCorrelations () const override

casacore::Vector < casacore::Stokes::StokesTypes >	getCorrelationTypesDefined () const override

casacore::Vector < casacore::Stokes::StokesTypes >	getCorrelationTypesSelected () const override

int	getMeasurementFrame (int spectralWindowId) const

casacore::Int	getPolarizationId (casacore::Int spectralWindowId, casacore::Int msId) const

casacore::Int	getReportingFrameOfReference () const override

casacore::Block < casacore::MeasurementSet >	getMeasurementSets () const
	Returns the casacore::MS objects that this VI is iterating over. More...

const casacore::MSDerivedValues &	getMsd () const
	Provides access to the casacore::MS-derived values object. More...

VisibilityIterator2 *	getViP () const
	Get privileged (non-const) access to the containing ROVI. More...

VisBuffer2 *	getVisBuffer (const VisibilityIterator2 *) const
	void getVisibilityAsStokes(casacore::Matrix<CStokesVector> & visibilityStokes, const casacore::ArrayColumn<casacore::Complex> & column) const; More...

virtual void	addDataSelection (const casacore::MeasurementSet &ms)
	Ctor auxiliary method. More...

virtual void	initialize (const casacore::Block< const casacore::MeasurementSet * > &mss, casacore::Bool useMSIter2=false)

casacore::Bool	isInASelectedSpectralWindow () const
	Returns true if casacore::MS Iterator is currently pointing to a selected spectral window. More...

vi::ChannelSelector *	makeChannelSelectorC (const FrequencySelection &selection, casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId, casacore::Int polarizationId) const
	Creates a channel selection for the current subchunk based on the channel or frequency selection made by the user. More...

vi::ChannelSelector *	makeChannelSelectorF (const FrequencySelection &selection, casacore::Double time, casacore::Int msId, casacore::Int spectralWindowId, casacore::Int polarizationId) const

casacore::MFrequency::Convert	makeFrequencyConverter (casacore::Double time, int spectralWindowId, casacore::Int otherFrameOfReference, casacore::Bool toObservedFrame, casacore::Unit) const

const casacore::ROMSColumns *	msColumnsKluge () const
	Allow access to the casacore::MSColumns object; for use by VisBuffer2Adapter KLUGE More...

void	positionMsIterToASelectedSpectralWindow ()
	Advances the casacore::MS Iterator until it points at a spectral window that is part of the frequency selection. More...

void	setReportingFrameOfReference (casacore::Int) override
	Sets the default frequency reporting frame of reference. More...

void	setMsCacheSizes (const casacore::MeasurementSet &ms, std::vector< casacore::MSMainEnums::PredefinedColumns > columnIds)

void	setMsColumnCacheSizes (const casacore::MeasurementSet &, const string &)

casacore::Bool	usesTiledDataManager (const casacore::String &columnName, const casacore::MeasurementSet &ms) const
	Returns true if the named column uses a tiled data manager in the specified MS. More...

void	initializeBackWriters ()

template<typename T >
void	putColumnRows (casacore::ArrayColumn< T > &column, const casacore::Array< T > &array)

template<typename T >
void	putColumnRows (casacore::ArrayColumn< T > &column, const casacore::Matrix< T > &array)

template<typename T >
void	putColumnRows (casacore::ScalarColumn< T > &column, const casacore::Vector< T > &array)

Protected Member Functions inherited from casa::vi::ViImplementation2
virtual VisBuffer2 *	createAttachedVisBuffer (VisBufferOptions options)

VisBuffer2 *	getVisBuffer (const VisibilityIterator2 *) const

Private Attributes
AsynchronousInterface *	interface_p

VlaData *	vlaData_p

Friends
class	AsyncEnabler

class	ViImplAsync2

class	VisibilityIterator2

class	VLAT

Additional Inherited Members
Public Types inherited from casa::vi::VisibilityIteratorImpl2
typedef VisibilityIterator2::DataColumn	DataColumn
	VLAT should not access private parts, especially variables. More...

typedef std::tuple < casacore::Vector < casacore::Int > , casacore::Vector < casacore::Int > , casacore::Vector < casacore::Int > , casacore::Vector < casacore::Int > >	ChannelInfo

Static Public Member Functions inherited from casa::vi::ViImplementation2
static void	azel0Calculate (casacore::Double time, casacore::MSDerivedValues &msd, casacore::MDirection &azel0, const casacore::MEpoch &mEpoch0)

static void	azelCalculate (casacore::Double time, casacore::MSDerivedValues &msd, casacore::Vector< casacore::MDirection > &azel, casacore::Int nAnt, const casacore::MEpoch &mEpoch0)

static casacore::Vector < casacore::Float >	feed_paCalculate (casacore::Double time, casacore::MSDerivedValues &msd, casacore::Int nAntennas, const casacore::MEpoch &mEpoch0, const casacore::Vector< casacore::Float > &receptor0Angle)

static casacore::Double	hourangCalculate (casacore::Double time, casacore::MSDerivedValues &msd, const casacore::MEpoch &mEpoch0)

static casacore::Float	parang0Calculate (casacore::Double time, casacore::MSDerivedValues &msd, const casacore::MEpoch &epoch0)

static casacore::Vector < casacore::Float >	parangCalculate (casacore::Double time, casacore::MSDerivedValues &msd, int nAntennas, const casacore::MEpoch mEpoch0)

Protected Types inherited from casa::vi::VisibilityIteratorImpl2
typedef casacore::Block < casacore::MeasurementSet >	MeasurementSets

Static Protected Member Functions inherited from casa::vi::VisibilityIteratorImpl2
template<typename Ret >
static BackWriter *	makeBackWriter (void(VisibilityIteratorImpl2::setter)(Ret), Ret(VisBuffer2::getter)() const)
	Backwriter(2) creation methods. More...

template<typename Ret >
static BackWriter *	makeBackWriter2 (void(VisibilityIteratorImpl2::setter)(Ret, VisibilityIteratorImpl2::DataColumn), Ret(VisBuffer2::getter)() const, VisibilityIterator2::DataColumn dc)

Static Protected Member Functions inherited from casa::vi::ViImplementation2
static void	doWeightScaling (casacore::Bool hasWeightScaling, WeightScaling *scaling, const casacore::Array< casacore::Float > &unscaled, casacore::Array< casacore::Float > &scaled)

Protected Attributes inherited from casa::vi::VisibilityIteratorImpl2
casacore::Bool	autoTileCacheSizing_p

std::map< VisBufferComponent2, BackWriter * >	backWriters_p

Cache	cache_p
	general collection of cached values More...

const ChannelSelector *	channelSelector_p
	[use] current channel selector for this casacore::MS & Spw More...

ChannelSelectorCache *	channelSelectorCache_p
	[own] cache of recently used channel selectors More...

ViColumns2	columns_p
	The main columns for the current MS. More...

casacore::Bool	floatDataFound_p
	true if a float data column was found More...

FrequencySelections *	frequencySelections_p
	[own] Current frequency selection More...

VisImagingWeight	imwgt_p
	object to calculate imaging weight More...

casacore::Int	measurementFrame_p
	cached value of observatory type More...

MeasurementSets	measurementSets_p

VisModelDataI *	modelDataGenerator_p

casacore::Bool	more_p
	true if more data in this chunk More...

casacore::Int	msIndex_p
	array index of current MS More...

casacore::Bool	msIterAtOrigin_p
	true if casacore::MS Iter is a start of first MS More...

casacore::CountedPtr < casacore::MSIter >	msIter_p
	casacore::MS Iter that underlies the VI (sweeps in chunks) More...

casacore::MSDerivedValues	msd_p
	Helper class holding casacore::MS derived values. More...

casacore::Int	nCorrelations_p

casacore::Int	nRowBlocking_p
	suggested # of rows in a subchunk More...

std::unique_ptr< PendingChanges >	pendingChanges_p
	holds pending changes to VI properties More...

std::unique_ptr < PointingDirectionCache >	pointingDirectionCache_p

std::unique_ptr< PointingSource >	pointingSource_p

casacore::Int	reportingFrame_p
	default frequency reporting (not selecting) frame of reference More...

RowBounds	rowBounds_p
	Subchunk row management object (see above) More...

SortColumns	sortColumns_p
	sort columns specified when creating VI More...

SpectralWindowChannelsCache *	spectralWindowChannelsCache_p
	[own] Info about spectral windows More...

Subchunk	subchunk_p
	(chunkN #, subchunk #) pair More...

SubtableColumns *	subtableColumns_p
	[own] Allows const access to casacore::MS's subtable columns More...

casacore::MeasRef < casacore::MEpoch >	timeFrameOfReference_p

std::shared_ptr< std::mutex >	tileCacheModMtx_p

std::shared_ptr< std::vector < bool > >	tileCacheIsSet_p

casacore::Double	timeInterval_p

VisBufferType	vbType

VisBuffer2 *	vb_p
	[own] VisBuffer attached to this VI More...

casacore::CountedPtr < WeightScaling >	weightScaling_p

casacore::Bool	writable_p

Detailed Description

VisibilityIterator2 iterates through one or more readonly MeasurementSets.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Prerequisite

MSIter
casacore::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 casacore::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 119 of file VisibilityIteratorImplAsync2.h.

Constructor & Destructor Documentation

casa::vi::VisibilityIteratorImplAsync2::VisibilityIteratorImplAsync2	(	VisibilityIterator2 *	rovi,
		const casacore::Block< casacore::MeasurementSet > &	mss,
		const casacore::Block< casacore::Int > &	sortColumns,
		casacore::Bool	addDefaultSortCols,
		casacore::Double	timeInterval,
		casacore::Bool	createVb,
		casacore::Bool	isWritable
	)

VLAT should not access private parts, especially variables.

enum PolFrame {

Circular polarization Circular=0, Linear polarization Linear=1 };

enum DataColumn { Observed data Observed=0, Model data Model, Corrected data Corrected };

class AsyncEnabler { public: AsyncEnabler (VisibilityIterator2 &); AsyncEnabler (VisibilityIterator2 *); ~AsyncEnabler ();

void release ();

private:

casacore::Bool oldEnabledState_p; VisibilityIterator2 * roVisibilityIterator2_p; };

Default constructor - useful only to assign another iterator later VisibilityIteratorImplAsync2 ();

Construct from an casacore::MS and a casacore::Block of casacore::MS column enums specifying the iteration order. If no order is specified, it uses the default sort order of MSIter, which is not necessarily the raw order of ms! The default ordering is ARRAY_ID, FIELD_ID, DATA_DESC_ID, and TIME, but check MSIter.h to be sure. These columns will be added first if they are not specified.

An optional timeInterval (in seconds) can be given to iterate through chunks of time. The default interval of 0 groups all times together. Every 'chunk' of data contains all data within a certain time interval and with identical values of the other iteration columns (e.g. DATA_DESC_ID and FIELD_ID). Using selectChannel (), a number of groups of channels can be requested. At present the channel group iteration will always occur before the interval iteration. VisibilityIteratorImplAsync (const casacore::MeasurementSet & ms, const casacore::Block<casacore::Int> & sortColumns, casacore::Double timeInterval = 0);

Same as above, but with the option of using the raw order of ms (addDefaultSortCols=false). VisibilityIteratorImplAsync (const casacore::MeasurementSet & ms, const casacore::Block<casacore::Int> & sortColumns, const casacore::Bool addDefaultSortCols, casacore::Double timeInterval = 0);

Same as previous constructors, but with multiple MSs to iterate over. VisibilityIteratorImplAsync (const casacore::Block<casacore::MeasurementSet> & mss, const casacore::Block<casacore::Int> & sortColumns, casacore::Double timeInterval = 0);

casa::vi::VisibilityIteratorImplAsync2::VisibilityIteratorImplAsync2	(	const VisibilityIteratorImplAsync2 &	other,
		VisibilityIterator2 *	rovi
	)

Copy construct.

This calls the assigment operator.

virtual casa::vi::VisibilityIteratorImplAsync2::~VisibilityIteratorImplAsync2 ( )

virtual

Destructor.

Member Function Documentation

virtual void casa::vi::VisibilityIteratorImplAsync2::advance ( )

protectedvirtual

advance the iteration

virtual void casa::vi::VisibilityIteratorImplAsync2::antenna1 ( casacore::Vector< casacore::Int > & ant1 ) const

virtual

Return antenna1.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::antenna2 ( casacore::Vector< casacore::Int > & ant2 ) const

virtual

Return antenna2.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const casacore::Vector<casacore::String>& casa::vi::VisibilityIteratorImplAsync2::antennaMounts ( ) const

virtual

return a string mount identifier for each antenna

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::applyPendingChanges ( )

protectedvirtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::arrayId ( ) const

virtual

Return the current ArrayId.

virtual void casa::vi::VisibilityIteratorImplAsync2::attachColumns ( const casacore::Table & t )

protectedvirtual

attach the column objects to the currently selected table

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::attachColumnsSafe ( const casacore::Table & t )

protected

virtual const casacore::Table casa::vi::VisibilityIteratorImplAsync2::attachTable ( ) const

protectedvirtual

returns the table, to which columns are attached, can be overridden in derived classes

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::configureNewChunk ( )

protectedvirtual

set the iteration state

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::configureNewSubchunk ( )

protectedvirtual

set the currently selected table

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::corrType ( casacore::Vector< casacore::Int > & corrTypes ) const

virtual

Return the correlation type (returns casacore::Stokes enums)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

const ChannelSelector* casa::vi::VisibilityIteratorImplAsync2::createDefaultChannelSelector	(	casacore::Double	time,
		casacore::Int	msId,
		casacore::Int	spectralWindowId
	)

protected

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::dataDescriptionId ( ) const

virtual

Return current DataDescription Id.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const ChannelSelector* casa::vi::VisibilityIteratorImplAsync2::determineChannelSelection ( casacore::Double time )

protectedvirtual

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::existsColumn ( VisBufferComponent2 id ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

casacore::Bool casa::vi::VisibilityIteratorImplAsync2::existsFlagCategory ( ) const

Determine whether FLAG_CATEGORY is valid.

casacore::Bool casa::vi::VisibilityIteratorImplAsync2::existsWeightSpectrum ( ) const

Determine whether WEIGHT_SPECTRUM exists.

virtual void casa::vi::VisibilityIteratorImplAsync2::exposure ( casacore::Vector< casacore::Double > & expo ) const

virtual

Return actual time interval.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::feed1 ( casacore::Vector< casacore::Int > & fd1 ) const

virtual

Return feed1.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::feed2 ( casacore::Vector< casacore::Int > & fd2 ) const

virtual

Return feed2.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::fieldId ( ) const

virtual

Return the current FieldId.

void casa::vi::VisibilityIteratorImplAsync2::fillVisBuffer ( )

protected

casacore::Slice casa::vi::VisibilityIteratorImplAsync2::findChannelsInRange	(	casacore::Double	lowerFrequency,
		casacore::Double	upperFrequency,
		const SpectralWindowChannels &	spectralWindowChannels
	)

protected

virtual void casa::vi::VisibilityIteratorImplAsync2::flag ( casacore::Cube< casacore::Bool > & flags ) const

virtual

Return flag for each polarization, channel and row.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::flag ( casacore::Matrix< casacore::Bool > & flags ) const

virtual

Return flag for each channel & row.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::flagCategory ( casacore::Array< casacore::Bool > & flagCategories ) const

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::flagRow ( casacore::Vector< casacore::Bool > & rowflags ) const

virtual

Return row flag.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::floatData ( casacore::Cube< casacore::Float > & fcube ) const

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const casacore::Cube<casacore::RigidVector<casacore::Double, 2> >& casa::vi::VisibilityIteratorImplAsync2::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.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

casacore::Vector<casacore::Int> casa::vi::VisibilityIteratorImplAsync2::getChannels	(	casacore::Double	time,
		casacore::Int	frameOfReference
	)		const

protected

template<typename T >

void casa::vi::VisibilityIteratorImplAsync2::getColumnRows	(	const casacore::ArrayColumn< T > &	column,
		casacore::Array< T > &	array
	)		const

protected

Methods to get the data out of a table column according to whatever selection criteria (e.g., slicing) is in effect.

template<typename T >

void casa::vi::VisibilityIteratorImplAsync2::getColumnRows	(	const casacore::ScalarColumn< T > &	column,
		casacore::Vector< T > &	array
	)		const

protected

template<typename T >

void casa::vi::VisibilityIteratorImplAsync2::getColumnRowsMatrix	(	const casacore::ArrayColumn< T > &	column,
		casacore::Matrix< T > &	array
	)		const

protected

casacore::Int casa::vi::VisibilityIteratorImplAsync2::getDataDescriptionId ( ) const

virtual casacore::MEpoch casa::vi::VisibilityIteratorImplAsync2::getEpoch ( ) const

virtual

virtual casacore::Vector<casacore::MPosition> antennaPositions () const;

casacore::MSDerivedValues makeMsd ();

Reimplemented from casa::vi::VisibilityIteratorImpl2.

casacore::Vector<casacore::Double> casa::vi::VisibilityIteratorImplAsync2::getFrequencies	(	casacore::Double	time,
		casacore::Int	frameOfReference
	)		const

protected

const VisImagingWeight& casa::vi::VisibilityIteratorImplAsync2::getImagingWeightGenerator ( ) const

virtual

Return imaging weight (a weight for each channel)

virtual casacore::Matrix<casacore::Float> & imagingWeight (casacore::Matrix<casacore::Float> & wt) const;

Implements casa::vi::ViImplementation2.

const casacore::MeasurementSet& casa::vi::VisibilityIteratorImplAsync2::getMeasurementSet ( ) const

casacore::Int casa::vi::VisibilityIteratorImplAsync2::getMeasurementSetId ( ) const

std::vector<casacore::MeasurementSet> casa::vi::VisibilityIteratorImplAsync2::getMeasurementSets ( ) const

protected

Returns the casacore::MS objects that this VI is iterating over.

const casacore::MSDerivedValues& casa::vi::VisibilityIteratorImplAsync2::getMsd ( ) const

protected

Provides access to the casacore::MS-derived values object.

const MsIterInfo& casa::vi::VisibilityIteratorImplAsync2::getMsIterInfo ( ) const

protected

casacore::Int casa::vi::VisibilityIteratorImplAsync2::getNAntennas ( ) const

casacore::MFrequency::Types casa::vi::VisibilityIteratorImplAsync2::getObservatoryFrequencyType ( ) const

virtual

Implements casa::vi::ViImplementation2.

casacore::MPosition casa::vi::VisibilityIteratorImplAsync2::getObservatoryPosition ( ) const

virtual

Implements casa::vi::ViImplementation2.

casacore::Vector<casacore::Float> casa::vi::VisibilityIteratorImplAsync2::getReceptor0Angle ( )

virtual

Implements casa::vi::ViImplementation2.

casacore::Int casa::vi::VisibilityIteratorImplAsync2::getReportingFrameOfReference ( ) const

protectedvirtual

Implements casa::vi::ViImplementation2.

virtual void casa::vi::VisibilityIteratorImplAsync2::getRowIds ( casacore::Vector< casacore::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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const SpectralWindowChannels& casa::vi::VisibilityIteratorImplAsync2::getSpectralWindowChannels	(	casacore::Int	msId,
		casacore::Int	spectralWindowId
	)		const

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual Subchunk casa::vi::VisibilityIteratorImplAsync2::getSubchunkId ( ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

VisibilityIterator2* casa::vi::VisibilityIteratorImplAsync2::getViP ( ) const

protected

VisBufferImplAsync2* casa::vi::VisibilityIteratorImplAsync2::getVisBufferAsync ( ) const

protected

Get privileged (non-const) access to the containing ROVI.

VisBufferAsyncWrapper2* casa::vi::VisibilityIteratorImplAsync2::getVisBufferWrapper ( ) const

protected

void casa::vi::VisibilityIteratorImplAsync2::getVisibilityAsStokes	(	casacore::Matrix< CStokesVector > &	visibilityStokes,
		const casacore::ArrayColumn< casacore::Complex > &	column
	)		const

protected

virtual void casa::vi::VisibilityIteratorImplAsync2::initialize ( const casacore::Block< casacore::MeasurementSet > & mss )

protectedvirtual

Ctor auxiliary method.

casacore::Bool casa::vi::VisibilityIteratorImplAsync2::isInASelectedSpectralWindow ( ) const

protected

Returns true if casacore::MS Iterator is currently pointing to a selected spectral window.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::isNewArrayId ( ) const

virtual

Check if ms has change since last iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::isNewFieldId ( ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::isNewMs ( ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::isNewSpectralWindow ( ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::jonesC ( casacore::Vector< casacore::SquareMatrix< casacore::Complex, 2 > > & cjones ) const

virtual

Return feed configuration matrix for specified antenna.

Implements casa::vi::ViImplementation2.

ChannelSelector* casa::vi::VisibilityIteratorImplAsync2::makeChannelSelectorC	(	const FrequencySelection &	selection,
		casacore::Double	time,
		casacore::Int	msId,
		casacore::Int	spectralWindowId
	)

protected

Creates a channel selection for the current subchunk based on the channel or frequency selection made by the user.

ChannelSelector* casa::vi::VisibilityIteratorImplAsync2::makeChannelSelectorF	(	const FrequencySelection &	selection,
		casacore::Double	time,
		casacore::Int	msId,
		casacore::Int	spectralWindowId
	)

protected

casacore::MFrequency::Convert casa::vi::VisibilityIteratorImplAsync2::makeFrequencyConverter	(	casacore::Double	time,
		casacore::Int	otherFrameOfReference,
		casacore::Bool	toObservedFrame
	)		const

protected

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::more ( ) const

virtual

Return false if no more data (in current chunk)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::moreChunks ( ) const

virtual

Return false if no more 'Chunks' of data left.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const casacore::MeasurementSet& casa::vi::VisibilityIteratorImplAsync2::ms ( ) const

virtual

reference to actual ms in interator

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::msId ( ) const

virtual

reference to actual ms in interator

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::newArrayId ( ) const

virtual

Return true if arrayID has changed since last iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::newFieldId ( ) const

virtual

Return true if FieldId/Source has changed since last iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Bool casa::vi::VisibilityIteratorImplAsync2::newSpectralWindow ( ) const

virtual

Return true if SpectralWindow has changed since last iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::nextChunk ( )

virtual

Advance to the next Chunk of data.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::nPolarizations ( ) const

virtual

Return the number of correlations in the current iteration.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::nRows ( ) const

virtual

Return the number of rows in the current iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::nRowsInChunk ( ) const

virtual

Return the numbers of rows in the current chunk.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::numberAnt ( )

virtual

return number of Ant

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::numberCoh ( )

virtual

Return number of rows in all selected ms's.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::numberDDId ( )

virtual

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::numberPol ( )

virtual

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::numberSpw ( )

virtual

Return number of spws, polids, ddids.

virtual void casa::vi::VisibilityIteratorImplAsync2::observationId ( casacore::Vector< casacore::Int > & obsids ) const

virtual

Return the OBSERVATION_IDs.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::origin ( )

virtual

Members.

Reset iterator to origin/start of data (of current chunk)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::originChunks ( )

virtual

Reset iterator to true start of data (first chunk)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::originChunks ( casacore::Bool forceRewind )

protectedvirtual

Method to reset the VI back to the start.

Unlike the public version there is a parameter to allow forcing the rewind even if the casacore::MS Iter is already at the origin.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const casacore::MDirection& casa::vi::VisibilityIteratorImplAsync2::phaseCenter ( ) const

virtual

Return the current phase center as an MDirection.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::polarizationId ( ) const

virtual

Return current Polarization Id.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::polFrame ( ) const

virtual

Return frame for polarization (returns PolFrame enum)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::positionMsIterToASelectedSpectralWindow ( )

protected

Advances the casacore::MS Iterator until it points at a spectral window that is part of the frequency selection.

virtual void casa::vi::VisibilityIteratorImplAsync2::processorId ( casacore::Vector< casacore::Int > & procids ) const

virtual

Return the PROCESSOR_IDs.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::readComplete ( )

protected

virtual const casacore::Cube<casacore::Double>& casa::vi::VisibilityIteratorImplAsync2::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.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::scan ( casacore::Vector< casacore::Int > & scans ) const

virtual

Return scan number.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::setFrequencySelections ( const FrequencySelections & selection )

virtual

Select the channels to be returned.

Requires calling originChunks before performing additional iteration.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::setInterval ( casacore::Double timeInterval )

virtual

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

This is not the same as the INTERVAL column.

Set or reset the time interval (in seconds) to use for iteration. You should call originChunks () to reset the iteration after calling this.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::setReportingFrameOfReference ( casacore::Int )

protectedvirtual

Sets the default frequency reporting frame of reference.

This affects the default frame for obtaining the frequencies in a VisBuffer.

Implements casa::vi::ViImplementation2.

virtual void casa::vi::VisibilityIteratorImplAsync2::setRowBlocking ( casacore::Int nRows = 0 )

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.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::setTileCache ( )

protectedvirtual

Adjusts the tile cache for some columns so that the cache size is optimized for the current input state (e.g., a new data description).

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::sigma ( casacore::Vector< casacore::Float > & sig ) const

virtual

Return sigma.

virtual void casa::vi::VisibilityIteratorImplAsync2::sigmaMat ( casacore::Matrix< casacore::Float > & sigmat ) const

virtual

Return sigma matrix (pol-dep)

virtual void casa::vi::VisibilityIteratorImplAsync2::slurp ( ) const

virtual

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

virtual casacore::Int nSubInterval () const;

Call to use the slurp i/o method for all scalar columns. This will set the casacore::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 casacore::Table i/o code, which uses casacore::BucketCache and performs extremely bad for random access. Slurping is useful when iterating non-sequentially an casacore::MS or parts of an casacore::MS, it is not tested with multiple MSs.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual casacore::Int casa::vi::VisibilityIteratorImplAsync2::spectralWindow ( ) const

virtual

Return current SpectralWindow.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::stateId ( casacore::Vector< casacore::Int > & stateids ) const

virtual

Return the STATE_IDs.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual const vi::SubtableColumns& casa::vi::VisibilityIteratorImplAsync2::subtableColumns ( ) const

virtual

Get the spw, start and nchan for all the ms's is this Visiter that match the frequecy "freqstart-freqStep" and "freqEnd+freqStep" range Can help in doing channel selection above.

freqFrame is the frame the caller frequency values are in (freqStart and freqEnd) These will be converted to the frame of the selected spw to match

virtual void getSpwInFreqRange (casacore::Block<casacore::Vector<casacore::Int> > & spw, casacore::Block<casacore::Vector<casacore::Int> > & start, casacore::Block<casacore::Vector<casacore::Int> > & nchan, casacore::Double freqStart, casacore::Double freqEnd, casacore::Double freqStep, casacore::MFrequency::Types freqFrame = casacore::MFrequency::LSRK) const;

Get the range of frequency convered by the selected data in the frame requested

virtual void getFreqInSpwRange(casacore::Double& freqStart, casacore::Double& freqEnd, casacore::MFrequency::Types freqframe = casacore::MFrequency::LSRK) const;

Access the current casacore::ROMSColumns object in MSIter

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::throwIfPendingChanges ( )

protectedvirtual

Throws exception if there is a pending (i.e., unapplied) change to the VI's properties.

Called when the VI is advanced since the user probably forgot to apply the changes.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::time ( casacore::Vector< casacore::Double > & t ) const

virtual

Return MJD midpoint of interval.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::timeCentroid ( casacore::Vector< casacore::Double > & t ) const

virtual

Return MJD centroid of interval.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::timeInterval ( casacore::Vector< casacore::Double > & ti ) const

virtual

Return nominal time interval.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::useImagingWeight ( const VisImagingWeight & imWgt )

virtual

assign a VisImagingWeight object to this iterator

Reimplemented from casa::vi::VisibilityIteratorImpl2.

casacore::Bool casa::vi::VisibilityIteratorImplAsync2::usesTiledDataManager	(	const casacore::String &	columnName,
		const casacore::MeasurementSet &	ms
	)		const

protected

Returns true if the named column uses a tiled data manager in the specified MS.

virtual void casa::vi::VisibilityIteratorImplAsync2::uvw ( casacore::Matrix< casacore::Double > & uvwmat ) const

virtual

Return u,v and w (in meters)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityCorrected ( casacore::Cube< casacore::Complex > & vis ) const

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityCorrected ( casacore::Matrix< CStokesVector > & vis ) const

virtual

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

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

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityModel ( casacore::Cube< casacore::Complex > & vis ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityModel ( casacore::Matrix< CStokesVector > & vis ) const

virtual

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityObserved ( casacore::Cube< casacore::Complex > & vis ) const

virtual

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::visibilityObserved ( casacore::Matrix< CStokesVector > & vis ) const

virtual

virtual casacore::IPosition casa::vi::VisibilityIteratorImplAsync2::visibilityShape ( ) const

virtual

Return the shape of the visibility Cube.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::weight ( casacore::Vector< casacore::Float > & wt ) const

virtual

Return weight.

virtual void casa::vi::VisibilityIteratorImplAsync2::weightMat ( casacore::Matrix< casacore::Float > & wtmat ) const

virtual

Returns the nPol_p x curNumRow_p weight matrix.

virtual void casa::vi::VisibilityIteratorImplAsync2::weightSpectrum ( casacore::Cube< casacore::Float > & wtsp ) const

virtual

Return weightspectrum (a weight for each channel)

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::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.

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeFlag ( const casacore::Matrix< casacore::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.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeFlag ( const casacore::Cube< casacore::Bool > & flag )

virtual

Write/modify the flags in the data.

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::writeFlagCategory ( const casacore::Array< casacore::Bool > & fc )

virtual

Implements casa::vi::ViImplementation2.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeFlagRow ( const casacore::Vector< casacore::Bool > & rowflags )

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeSigma ( const casacore::Vector< casacore::Float > & sig )

virtual

Write/modify the Sigma.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeSigmaMat ( const casacore::Matrix< casacore::Float > & sigmat )

virtual

Write/modify the ncorr x nrow SigmaMat.

void casa::vi::VisibilityIteratorImplAsync2::writeVisCorrected ( const casacore::Matrix< CStokesVector > & visibilityStokes )

Write/modify the visibilities.

This is possibly only for a 'reference' casacore::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 casacore::MS does not contain all polarizations, only the parallel hand polarizations are used.

virtual void casa::vi::VisibilityIteratorImplAsync2::writeVisCorrected ( const casacore::Cube< casacore::Complex > & vis )

virtual

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

Reimplemented from casa::vi::VisibilityIteratorImpl2.

void casa::vi::VisibilityIteratorImplAsync2::writeVisModel ( const casacore::Matrix< CStokesVector > & visibilityStokes )