casa::MSSpWindowIndex Class Reference [MeasurementSets_module]

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

#include <MSSpWindowIndex.h>

List of all members.

Public Member Functions
	MSSpWindowIndex (const MSSpectralWindow &spectralWindow)
	Construct from an MS SPECTRAL_WINDOW subtable.
virtual	~MSSpWindowIndex ()
	Null destructor.
Vector< Int >	matchFreqGrp (const Int &freqGrp)
	Look up SPECTRAL_WINDOW_ID's for a given frequency group or groups.
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.
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.
Private Member Functions
	MSSpWindowIndex ()
	Disallow null constructor.
Private Attributes
ROMSSpWindowColumns	msSpWindowCols_p
	SPECTRAL_WINDOW subtable column accessor.
Vector< Int >	spWindowIds_p
	Vector cache of SpWindow id's.
Int	nrows_p

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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.

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Constructor & Destructor Documentation

casa::MSSpWindowIndex::MSSpWindowIndex

(

const MSSpectralWindow &

spectralWindow

)

Construct from an MS SPECTRAL_WINDOW subtable.

virtual casa::MSSpWindowIndex::~MSSpWindowIndex

(

)

[inline, virtual]

Null destructor.

Definition at line 90 of file MSSpWindowIndex.h.

casa::MSSpWindowIndex::MSSpWindowIndex

(

)

[private]

Disallow null constructor.

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Member Function Documentation

Vector<Int> casa::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> casa::MSSpWindowIndex::matchFreqGrp

(

const Vector< Int > &

freqGrps

)

Vector<Int> casa::MSSpWindowIndex::matchFreqGrp

(

const Int &

freqGrp

)

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

Vector<Int> casa::MSSpWindowIndex::matchFreqGrpName

(

const String &

freqGrpName

)

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

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Member Data Documentation

ROMSSpWindowColumns casa::MSSpWindowIndex::msSpWindowCols_p [private]

SPECTRAL_WINDOW subtable column accessor.

Definition at line 109 of file MSSpWindowIndex.h.

Int casa::MSSpWindowIndex::nrows_p [private]

Definition at line 113 of file MSSpWindowIndex.h.

Vector<Int> casa::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:

• ms/MeasurementSets/MSSpWindowIndex.h