casacore::MSFitsInput Class Reference

UV FITS to MeasurementSet filler. More...

#include <MSFitsInput.h>

Public Member Functions
	MSFitsInput ()=delete
	This is an implementation helper class used to store 'local' data during the filling process. More...
	MSFitsInput (const String &msFile, const String &fitsFile, const Bool NewNameStyle=False)
	Create from output and input file names. More...
	MSFitsInput (const MSFitsInput &other)=delete
	~MSFitsInput ()
	The destructor is fairly trivial. More...
MSFitsInput &	operator= (const MSFitsInput &other)=delete
void	readFitsFile (Int obsType=MSTileLayout::Standard)
	Read all the data from the FITS file and create the MeasurementSet. More...

Private Member Functions
Bool	_checkInput (FitsInput &infile)
	Check that the input is a UV fits file with required contents. More...
void	getPrimaryGroupAxisInfo ()
	Read the axis info of the primary group, throws an exception if required axes are missing. More...
void	setupMeasurementSet (const String &MSFileName, Bool useTSM=True, Int obsType=MSTileLayout::Standard)
	Set up the MeasurementSet, including StorageManagers and fixed columns. More...
Read a binary table extension of type AIPS AN and create an antenna table *void	fillAntennaTable (BinaryTable &bt)
void	fillHistoryTable (ConstFitsKeywordList &kwl)
	Read a binary table extension and update history table. More...
void	fillObservationTable (ConstFitsKeywordList &kwl)
	Read a binary table extension and update history table. More...
void	getAxisInfo (ConstFitsKeywordList &)
	extract axis information More...
void	sortPolarizations ()
	extract axis information More...
void	fillPolarizationTable ()
void	checkRequiredAxis ()
	verify that the fits contains visibility data More...
void	fillSpectralWindowTable (BinaryTable &bt)
void	fillFieldTable (BinaryTable &bt)
	fill Field table More...
void	fillFieldTable (double, double, String)
void	fillMSMainTable (BinaryTable &bt)
void	fillPointingTable ()
void	fillSourceTable ()
void	fillFeedTable ()
	fill the Feed table with minimal info needed for synthesis processing More...
Fill the Observation and ObsLog tables *void	fillObsTables ()
void	fillMSMainTableColWise (Int &nField, Int &nSpW)
	Fill the main table from the Primary group data if we have enough memory try to do it in mem. More...
void	fillMSMainTable (Int &nField, Int &nSpW)
	else do it row by row More...
void	fillSpectralWindowTable (BinaryTable &bt, Int nSpW)
	fill spectralwindow table from FITS FQ table + header info More...
void	fillSpectralWindowTable ()
	fill spectralwindow table from header More...
void	fillFieldTable (BinaryTable &bt, Int nField)
	fill Field table from FITS SU table More...
void	fillFieldTable (Int nField)
	fill Field table from header (single source fits) More...
void	fillExtraTables ()
	fill the Pointing table (from Field table, all antennas are assumed to point in the field direction) and possibly the Source table. More...
void	fixEpochReferences ()
	fix up the EPOCH MEASURE_REFERENCE keywords using the value found in the (last) AN table More...
MDirection::Types	getDirectionFrame (Double epoch)
	Returns the Direction Measure reference for UVW and other appropriate columns in msc_p (which must exist but have empty columns before you can set it!). More...
void	setFreqFrameVar (BinaryTable &binTab)
	Check the frame if there is an SU table. More...
void	updateSpectralWindowTable ()
	update a the Spectral window post filling if necessary More...
void	readRandomGroupUVFits (Int obsType)
void	readPrimaryTableUVFits (Int obsType)
std::pair< Int, Int >	_extractAntennas (Int antenna1, Int antenna2)
std::pair< Int, Int >	_extractAntennas (Float baseline)
void	_fillSysPowerTable (BinaryTable &bt)
void	_doFillSysPowerSingleIF (const String &casaTableName, const ScalarColumn< Double > &timeCol, const ScalarColumn< Float > &intervalCol, const ScalarColumn< Int > &antNoCol, const ScalarColumn< Int > &freqIDCol, const ScalarColumn< Float > &powerDif1Col, const ScalarColumn< Float > &powerSum1Col, const ScalarColumn< Float > &postGain1Col, const ScalarColumn< Float > &powerDif2Col, const ScalarColumn< Float > &powerSum2Col, const ScalarColumn< Float > &postGain2Col)

Private Attributes
FitsInput *	_infile
String	_msFile
MSPrimaryGroupHolder	_priGroup
MSPrimaryTableHolder	_priTable
MeasurementSet	_ms
MSColumns *	_msc
Int	_nIF
Vector< Int >	_nPixel
Vector< Int >	_corrType
Block< Int >	_corrIndex
Matrix< Int >	_corrProduct
Vector< String >	_coordType
Vector< Double >	_refVal
Vector< Double >	_refPix
Vector< Double >	_delta
String	_array
String	_object
String	_timsys
Double	_epoch
MDirection::Types	_epochRef
std::set< Int >	_uniqueAnts
	determined by epoch_p, hence the name and type. More...
Int	_nAntRow
	number of rows in the created MS ANTENNA table More...
Int	_nArray
Vector< Double >	_receptorAngle
MFrequency::Types	_freqsys
Double	_restfreq
Bool	_addSourceTable
LogIO	_log
Record	_header
Double	_refFreq
Bool	_useAltrval
Vector< Double >	_chanFreq
Bool	_newNameStyle
Vector< Double >	_obsTime
Matrix< Double >	_restFreq
Matrix< Double >	_sysVel
Bool	_msCreated

Detailed Description

UV FITS to MeasurementSet filler.

Intended use:

Public interface

Prerequisite

• MeasurementSet
• FITS classes

Etymology

MSFitsInput handles the conversion of FITS files to MeasurementSets

Synopsis

UV FITS to MeasurementSet filler. This can handle single source fits and multi source fits as written by classic AIPS. Also copes with multiple arrays (i.e. multiple AN tables) but doesn't correct for 5 day offsets introduced by DBCON.

Definition at line 268 of file MSFitsInput.h.

Constructor & Destructor Documentation

casacore::MSFitsInput::MSFitsInput ( )

delete

This is an implementation helper class used to store 'local' data during the filling process.

casacore::MSFitsInput::MSFitsInput	(	const String &	msFile,
		const String &	fitsFile,
		const Bool	NewNameStyle = False
	)

Create from output and input file names.

This function opens the input file, and checks the output file is writable.

casacore::MSFitsInput::MSFitsInput ( const MSFitsInput &  other )

delete

casacore::MSFitsInput::~MSFitsInput

(

)

The destructor is fairly trivial.

Member Function Documentation

Bool casacore::MSFitsInput::_checkInput ( FitsInput &  infile )

private

Check that the input is a UV fits file with required contents.

Returns False if not ok.

void casacore::MSFitsInput::_doFillSysPowerSingleIF ( const String &  casaTableName, const ScalarColumn< Double > &  timeCol, const ScalarColumn< Float > &  intervalCol, const ScalarColumn< Int > &  antNoCol, const ScalarColumn< Int > &  freqIDCol, const ScalarColumn< Float > &  powerDif1Col, const ScalarColumn< Float > &  powerSum1Col, const ScalarColumn< Float > &  postGain1Col, const ScalarColumn< Float > &  powerDif2Col, const ScalarColumn< Float > &  powerSum2Col, const ScalarColumn< Float > &  postGain2Col  )

private

std::pair<Int, Int> casacore::MSFitsInput::_extractAntennas ( Int  antenna1, Int  antenna2  )

private

std::pair<Int, Int> casacore::MSFitsInput::_extractAntennas ( Float  baseline )

private

void casacore::MSFitsInput::_fillSysPowerTable ( BinaryTable &  bt )

private

void casacore::MSFitsInput::checkRequiredAxis ( )

private

verify that the fits contains visibility data

Read a binary table extension of type AIPS AN and create an antenna table* void casacore::MSFitsInput::fillAntennaTable ( BinaryTable &  bt )

private

void casacore::MSFitsInput::fillExtraTables ( )

private

fill the Pointing table (from Field table, all antennas are assumed to point in the field direction) and possibly the Source table.

void casacore::MSFitsInput::fillFeedTable ( )

private

fill the Feed table with minimal info needed for synthesis processing

void casacore::MSFitsInput::fillFieldTable ( BinaryTable &  bt )

private

fill Field table

void casacore::MSFitsInput::fillFieldTable ( double  , double  , String    )

private

void casacore::MSFitsInput::fillFieldTable ( BinaryTable &  bt, Int  nField  )

private

fill Field table from FITS SU table

void casacore::MSFitsInput::fillFieldTable ( Int  nField )

private

fill Field table from header (single source fits)

void casacore::MSFitsInput::fillHistoryTable ( ConstFitsKeywordList &  kwl )

private

Read a binary table extension and update history table.

void casacore::MSFitsInput::fillMSMainTable ( BinaryTable &  bt )

private

void casacore::MSFitsInput::fillMSMainTable ( Int &  nField, Int &  nSpW  )

private

else do it row by row

void casacore::MSFitsInput::fillMSMainTableColWise ( Int &  nField, Int &  nSpW  )

private

Fill the main table from the Primary group data if we have enough memory try to do it in mem.

void casacore::MSFitsInput::fillObservationTable ( ConstFitsKeywordList &  kwl )

private

Read a binary table extension and update history table.

Fill the Observation and ObsLog tables* void casacore::MSFitsInput::fillObsTables ( )

private

void casacore::MSFitsInput::fillPointingTable ( )

private

void casacore::MSFitsInput::fillPolarizationTable ( )

private

void casacore::MSFitsInput::fillSourceTable ( )

private

void casacore::MSFitsInput::fillSpectralWindowTable ( BinaryTable &  bt )

private

void casacore::MSFitsInput::fillSpectralWindowTable ( BinaryTable &  bt, Int  nSpW  )

private

fill spectralwindow table from FITS FQ table + header info

void casacore::MSFitsInput::fillSpectralWindowTable ( )

private

fill spectralwindow table from header

void casacore::MSFitsInput::fixEpochReferences ( )

private

fix up the EPOCH MEASURE_REFERENCE keywords using the value found in the (last) AN table

void casacore::MSFitsInput::getAxisInfo ( ConstFitsKeywordList &  )

private

extract axis information

MDirection::Types casacore::MSFitsInput::getDirectionFrame ( Double  epoch )

private

Returns the Direction Measure reference for UVW and other appropriate columns in msc_p (which must exist but have empty columns before you can set it!).

void casacore::MSFitsInput::getPrimaryGroupAxisInfo ( )

private

Read the axis info of the primary group, throws an exception if required axes are missing.

MSFitsInput& casacore::MSFitsInput::operator= ( const MSFitsInput &  other )

delete

void casacore::MSFitsInput::readFitsFile

(

Int

obsType = MSTileLayout::Standard

)

Read all the data from the FITS file and create the MeasurementSet.

Throws an exception when it has severe trouble interpreting the FITS file.

void casacore::MSFitsInput::readPrimaryTableUVFits ( Int  obsType )

private

void casacore::MSFitsInput::readRandomGroupUVFits ( Int  obsType )

private

void casacore::MSFitsInput::setFreqFrameVar ( BinaryTable &  binTab )

private

Check the frame if there is an SU table.

void casacore::MSFitsInput::setupMeasurementSet ( const String &  MSFileName, Bool  useTSM = True, Int  obsType = MSTileLayout::Standard  )

private

Set up the MeasurementSet, including StorageManagers and fixed columns.

If useTSM is True, the Tiled Storage Manager will be used to store DATA, FLAG and WEIGHT_SPECTRUM. Use obsType to choose the tiling scheme.

void casacore::MSFitsInput::sortPolarizations ( )

private

extract axis information

void casacore::MSFitsInput::updateSpectralWindowTable ( )

private

update a the Spectral window post filling if necessary

Member Data Documentation

Bool casacore::MSFitsInput::_addSourceTable

private

Definition at line 317 of file MSFitsInput.h.

String casacore::MSFitsInput::_array

private

Definition at line 304 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_chanFreq

private

Definition at line 322 of file MSFitsInput.h.

Vector<String> casacore::MSFitsInput::_coordType

private

Definition at line 302 of file MSFitsInput.h.

Block<Int> casacore::MSFitsInput::_corrIndex

private

Definition at line 300 of file MSFitsInput.h.

Matrix<Int> casacore::MSFitsInput::_corrProduct

private

Definition at line 301 of file MSFitsInput.h.

Vector<Int> casacore::MSFitsInput::_corrType

private

Definition at line 299 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_delta

private

Definition at line 303 of file MSFitsInput.h.

Double casacore::MSFitsInput::_epoch

private

Definition at line 305 of file MSFitsInput.h.

MDirection::Types casacore::MSFitsInput::_epochRef

private

Definition at line 306 of file MSFitsInput.h.

MFrequency::Types casacore::MSFitsInput::_freqsys

private

Definition at line 315 of file MSFitsInput.h.

Record casacore::MSFitsInput::_header

private

Definition at line 319 of file MSFitsInput.h.

FitsInput* casacore::MSFitsInput::_infile

private

Definition at line 292 of file MSFitsInput.h.

LogIO casacore::MSFitsInput::_log

private

Definition at line 318 of file MSFitsInput.h.

MeasurementSet casacore::MSFitsInput::_ms

private

Definition at line 296 of file MSFitsInput.h.

MSColumns* casacore::MSFitsInput::_msc

private

Definition at line 297 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_msCreated

private

Definition at line 328 of file MSFitsInput.h.

String casacore::MSFitsInput::_msFile

private

Definition at line 293 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nAntRow

private

number of rows in the created MS ANTENNA table

Definition at line 312 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nArray

private

Definition at line 313 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_newNameStyle

private

Definition at line 323 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nIF

private

Definition at line 298 of file MSFitsInput.h.

Vector<Int> casacore::MSFitsInput::_nPixel

private

Definition at line 299 of file MSFitsInput.h.

String casacore::MSFitsInput::_object

private

Definition at line 304 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_obsTime

private

Definition at line 324 of file MSFitsInput.h.

MSPrimaryGroupHolder casacore::MSFitsInput::_priGroup

private

Definition at line 294 of file MSFitsInput.h.

MSPrimaryTableHolder casacore::MSFitsInput::_priTable

private

Definition at line 295 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_receptorAngle

private

Definition at line 314 of file MSFitsInput.h.

Double casacore::MSFitsInput::_refFreq

private

Definition at line 320 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_refPix

private

Definition at line 303 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_refVal

private

Definition at line 303 of file MSFitsInput.h.

Double casacore::MSFitsInput::_restfreq

private

Definition at line 316 of file MSFitsInput.h.

Matrix<Double> casacore::MSFitsInput::_restFreq

private

Definition at line 326 of file MSFitsInput.h.

Matrix<Double> casacore::MSFitsInput::_sysVel

private

Definition at line 327 of file MSFitsInput.h.

String casacore::MSFitsInput::_timsys

private

Definition at line 304 of file MSFitsInput.h.

std::set<Int> casacore::MSFitsInput::_uniqueAnts

private

determined by epoch_p, hence the name and type.

unique antennas found in the visibility data NOTE These are 1-based

Definition at line 310 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_useAltrval

private

Definition at line 321 of file MSFitsInput.h.

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

• msfits/MSFits/MSFitsInput.h