casacore::MSSpWindowIndex Class Reference

Class to handle lookup or indexing into a MS SPECTRAL_WINDOW subtable. More...

#include <MSSpWindowIndex.h>

Public Member Functions
	MSSpWindowIndex (const MSSpectralWindow &spectralWindow)
	Construct from an MS SPECTRAL_WINDOW subtable. More...
virtual	~MSSpWindowIndex ()
	Null destructor. More...
Vector< Int >	matchFreqGrp (const Int &freqGrp)
	Look up SPECTRAL_WINDOW_ID's for a given frequency group or groups. More...
Vector< Int >	matchFreqGrp (const Vector< Int > &freqGrps)
Vector< Int >	matchFreqGrpName (const String &freqGrpName)
	Look up SPECTRAL_WINDOW_ID's for a given frequency group name. More...
Vector< Int >	matchFreq (const Vector< MFrequency > &chanFreq, const Vector< MVFrequency > &chanWidth, const Double &freqTol)
	Look up SPECTRAL_WINDOW_ID's for a given frequency axis sampling. More...

Private Member Functions
	MSSpWindowIndex ()
	Disallow null constructor. More...

Private Attributes
ROMSSpWindowColumns	msSpWindowCols_p
	SPECTRAL_WINDOW subtable column accessor. More...
Vector< Int >	spWindowIds_p
	Vector cache of SpWindow id's. More...
Int	nrows_p

Detailed Description

Class to handle lookup or indexing into a MS SPECTRAL_WINDOW subtable.

Intended use:

Public interface

Review Status

Date Reviewed:

yyyy/mm/dd

Prerequisite

• MeasurementSet
• MSSpWindowription

Etymology

From "MeasurementSet", "SPECTRAL_WINDOW subtable" and "index".

Synopsis

This class provides lookup and indexing into an MS SPECTRAL_WINDOW subtable. These services include returning rows numbers (which for the SPECTRAL_WINDOW subtable are SPECTRAL_WINDOW_ID's) associated with specific data in the subtable.

Example

Motivation

Collect together all subtable indexing and lookup for the SPECTRAL_WINDOW subtable, for encapsulation and efficiency.

Thrown Exceptions

Definition at line 83 of file MSSpWindowIndex.h.

Constructor & Destructor Documentation

casacore::MSSpWindowIndex::MSSpWindowIndex

(

const MSSpectralWindow &

spectralWindow

)

Construct from an MS SPECTRAL_WINDOW subtable.

virtual casacore::MSSpWindowIndex::~MSSpWindowIndex ( )

inlinevirtual

Null destructor.

Definition at line 90 of file MSSpWindowIndex.h.

casacore::MSSpWindowIndex::MSSpWindowIndex ( )

private

Disallow null constructor.

Member Function Documentation

Vector<Int> casacore::MSSpWindowIndex::matchFreq	(	const Vector< MFrequency > &	chanFreq,
		const Vector< MVFrequency > &	chanWidth,
		const Double &	freqTol
	)

Look up SPECTRAL_WINDOW_ID's for a given frequency axis sampling.

Vector<Int> casacore::MSSpWindowIndex::matchFreqGrp

(

const Int &

freqGrp

)

Look up SPECTRAL_WINDOW_ID's for a given frequency group or groups.

Vector<Int> casacore::MSSpWindowIndex::matchFreqGrp

(

const Vector< Int > &

freqGrps

)

Vector<Int> casacore::MSSpWindowIndex::matchFreqGrpName

(

const String &

freqGrpName

)

Look up SPECTRAL_WINDOW_ID's for a given frequency group name.

Member Data Documentation

ROMSSpWindowColumns casacore::MSSpWindowIndex::msSpWindowCols_p

private

SPECTRAL_WINDOW subtable column accessor.

Definition at line 109 of file MSSpWindowIndex.h.

Int casacore::MSSpWindowIndex::nrows_p

private

Definition at line 113 of file MSSpWindowIndex.h.

Vector<Int> casacore::MSSpWindowIndex::spWindowIds_p

private

Vector cache of SpWindow id's.

Definition at line 112 of file MSSpWindowIndex.h.

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

• casa/casacore/ms/MSSel/MSSpWindowIndex.h