GBTMSFieldFiller.h

This class puts the appropriate values for the GBT in an MSField table (which has been previously created as part of a MeasurementSet). On each fill() any necessary additions to the MSField are made. This is fully indexed. New rows are only added for each new NAME, CODE, NUM_POLY, SOURCE_ID combination or when the directions change for an existing such combination.

The fieldId is available to be used by other GBTMS*Fillers as other subtables are filled in turn.

Example

Motivation

Writing a filler is a daunting task. There are various dependencies between the subtables. It helps to encapsulate the knowlege and task of filling a specific subtable to separate classes.

Member Description

GBTMSFieldFiller()

The default ctor. No MSField table has been attached yet. Calling fill on such a filler will throw an exception. It is present so that this object can be instantiated before an MSField has been created.

GBTMSFieldFiller(MSField &msField)

A filler attached to an MSField table

~GBTMSFieldFiller()

void attach(MSField &msField)

attach it to an MSField

void fill(Int sourceId, const String &name, const MDirection &fieldDir)

fill, adding rows as necessary, fieldDir is the nominal pointing direction at equinox. DELAY_DIR, PHASE_DIR, and REFERENCE_DIR are set to the fieldDir value. These are always in J2000 in the MS.

const Int &fieldId() const

this is the row numbers of the most recently filled MSField row it returns -1 if nothing has been filled yet

void flush()

flush the underlying MS subtable

void init(MSField &msField)

initialize the above for the first time

GBTMSFieldFiller(const GBTMSFieldFiller &other)

undefined and unavailable