casacore::MSFitsInput Class Reference

UV FITS to MeasurementSet filler. More...

#include <MSFitsInput.h>

Public Member Functions
	MSFitsInput (const String &msFile, const String &fitsFile, const Bool NewNameStyle=False)
	This is an implementation helper class used to store 'local' data during the filling process. More...
	~MSFitsInput ()
	The destructor is fairly trivial. More...
void	readFitsFile (Int obsType=MSTileLayout::Standard)
	Read all the data from the FITS file and create the MeasurementSet. More...
void	rotateAntennaPositions (Bool b)
	A simultaneous change to MSFitsOutput means that no longer are antenna positions being rotated when written to UVFITS. More...

Protected 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)

Private Member Functions
	MSFitsInput ()
	MSFitsInput (const MSFitsInput &other)
MSFitsInput &	operator= (const MSFitsInput &other)
std::pair< Int, Int >	_extractAntennas (Float baseline)

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
Bool	_rotateAnts

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 267 of file MSFitsInput.h.

Constructor & Destructor Documentation

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

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

 Create from output and input file names. This function opens the input

file, and checks the output file is writable.

casacore::MSFitsInput::~MSFitsInput

(

)

The destructor is fairly trivial.

casacore::MSFitsInput::MSFitsInput ( )

private

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

private

Member Function Documentation

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

private

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

protected

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

Returns False if not ok.

void casacore::MSFitsInput::checkRequiredAxis ( )

protected

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 )

protected

void casacore::MSFitsInput::fillExtraTables ( )

protected

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 ( )

protected

fill the Feed table with minimal info needed for synthesis processing

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

protected

fill Field table

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

protected

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

protected

fill Field table from FITS SU table

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

protected

fill Field table from header (single source fits)

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

protected

Read a binary table extension and update history table.

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

protected

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

protected

else do it row by row

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

protected

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 )

protected

Read a binary table extension and update history table.

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

protected

void casacore::MSFitsInput::fillPointingTable ( )

protected

void casacore::MSFitsInput::fillPolarizationTable ( )

protected

void casacore::MSFitsInput::fillSourceTable ( )

protected

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

protected

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

protected

fill spectralwindow table from FITS FQ table + header info

void casacore::MSFitsInput::fillSpectralWindowTable ( )

protected

fill spectralwindow table from header

void casacore::MSFitsInput::fixEpochReferences ( )

protected

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

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

protected

extract axis information

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

protected

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 ( )

protected

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

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

private

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 )

protected

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

protected

void casacore::MSFitsInput::rotateAntennaPositions ( Bool  b )

inline

A simultaneous change to MSFitsOutput means that no longer are antenna positions being rotated when written to UVFITS.

Calling this method with b=True will perform the reverse of a rotation when converting from uvfits to MS for relevant UVFITS files which were written prior to this change. Else no rotation of antenna positions is done.

Definition at line 290 of file MSFitsInput.h.

References _rotateAnts.

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

protected

Check the frame if there is an SU table.

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

protected

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 ( )

protected

extract axis information

void casacore::MSFitsInput::updateSpectralWindowTable ( )

protected

update a the Spectral window post filling if necessary

Member Data Documentation

Bool casacore::MSFitsInput::_addSourceTable

private

Definition at line 422 of file MSFitsInput.h.

String casacore::MSFitsInput::_array

private

Definition at line 409 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_chanFreq

private

Definition at line 427 of file MSFitsInput.h.

Vector<String> casacore::MSFitsInput::_coordType

private

Definition at line 407 of file MSFitsInput.h.

Block<Int> casacore::MSFitsInput::_corrIndex

private

Definition at line 405 of file MSFitsInput.h.

Matrix<Int> casacore::MSFitsInput::_corrProduct

private

Definition at line 406 of file MSFitsInput.h.

Vector<Int> casacore::MSFitsInput::_corrType

private

Definition at line 404 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_delta

private

Definition at line 408 of file MSFitsInput.h.

Double casacore::MSFitsInput::_epoch

private

Definition at line 410 of file MSFitsInput.h.

MDirection::Types casacore::MSFitsInput::_epochRef

private

Definition at line 411 of file MSFitsInput.h.

MFrequency::Types casacore::MSFitsInput::_freqsys

private

Definition at line 420 of file MSFitsInput.h.

Record casacore::MSFitsInput::_header

private

Definition at line 424 of file MSFitsInput.h.

FitsInput* casacore::MSFitsInput::_infile

private

Definition at line 397 of file MSFitsInput.h.

LogIO casacore::MSFitsInput::_log

private

Definition at line 423 of file MSFitsInput.h.

MeasurementSet casacore::MSFitsInput::_ms

private

Definition at line 401 of file MSFitsInput.h.

MSColumns* casacore::MSFitsInput::_msc

private

Definition at line 402 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_msCreated

private

Definition at line 433 of file MSFitsInput.h.

String casacore::MSFitsInput::_msFile

private

Definition at line 398 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nAntRow

private

number of rows in the created MS ANTENNA table

Definition at line 417 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nArray

private

Definition at line 418 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_newNameStyle

private

Definition at line 428 of file MSFitsInput.h.

Int casacore::MSFitsInput::_nIF

private

Definition at line 403 of file MSFitsInput.h.

Vector<Int> casacore::MSFitsInput::_nPixel

private

Definition at line 404 of file MSFitsInput.h.

String casacore::MSFitsInput::_object

private

Definition at line 409 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_obsTime

private

Definition at line 429 of file MSFitsInput.h.

MSPrimaryGroupHolder casacore::MSFitsInput::_priGroup

private

Definition at line 399 of file MSFitsInput.h.

MSPrimaryTableHolder casacore::MSFitsInput::_priTable

private

Definition at line 400 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_receptorAngle

private

Definition at line 419 of file MSFitsInput.h.

Double casacore::MSFitsInput::_refFreq

private

Definition at line 425 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_refPix

private

Definition at line 408 of file MSFitsInput.h.

Vector<Double> casacore::MSFitsInput::_refVal

private

Definition at line 408 of file MSFitsInput.h.

Double casacore::MSFitsInput::_restfreq

private

Definition at line 421 of file MSFitsInput.h.

Matrix<Double> casacore::MSFitsInput::_restFreq

private

Definition at line 431 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_rotateAnts

private

Definition at line 433 of file MSFitsInput.h.

Referenced by rotateAntennaPositions().

Matrix<Double> casacore::MSFitsInput::_sysVel

private

Definition at line 432 of file MSFitsInput.h.

String casacore::MSFitsInput::_timsys

private

Definition at line 409 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 415 of file MSFitsInput.h.

Bool casacore::MSFitsInput::_useAltrval

private

Definition at line 426 of file MSFitsInput.h.

---

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

• casa/casacore/msfits/MSFits/MSFitsInput.h