Model the diagonal elements of the Voltage Pattern Sky Jones Matrices. More...

#include <VPSkyJones.h>

Inheritance diagram for casa::VPSkyJones:

Public Member Functions
	VPSkyJones (const ROMSColumns &msc, Table &table, const Quantity &parAngleInc, BeamSquint::SquintType doSquint, const Quantity &skyPositionThreshold=Quantity(180.,"deg"))
	constructor from a VP Table
	VPSkyJones (const ROMSColumns &msc, Bool makeDefaultPBsFromMS=True, const Quantity &parallacticAngleIncrement=Quantity(720.0,"deg"), BeamSquint::SquintType doSquint=BeamSquint::NONE, const Quantity &skyPositionThreshold=Quantity(180.,"deg"))
	constructor for default PB type associated with MS
	VPSkyJones (const String &tel, PBMath::CommonPB commonPBType, const Quantity &parallacticAngleIncrement=Quantity(720.0,"deg"), BeamSquint::SquintType doSquint=BeamSquint::NONE, const Quantity &skyPositionThreshold=Quantity(180.,"deg"))
	constructor for common PB type
	VPSkyJones (const String &tel, PBMath &myPBMath, const Quantity &parallacticAngleIncrement=Quantity(720.0,"deg"), BeamSquint::SquintType doSquint=BeamSquint::NONE, const Quantity &skyPositionThreshold=Quantity(180.,"deg"))
	constructor for given PBMath type
	~VPSkyJones ()
	destructor needed so it's not an abstract baseclass
Type	type ()
	return SkyJones type
virtual Bool	isSolveable ()
	Is this solveable?

Detailed Description

Model the diagonal elements of the Voltage Pattern Sky Jones Matrices.

Intended use:

Public interface

Prerequisite

SkyEquation class
BeamSkyJones class

Etymology

VP = Voltage Pattern, SkyJones = Sky-based Jones matrices. This class only deals with the diagonal elements of the voltage pattern jones matrices.

Synopsis

Example

Motivation

To deal with the non-leakage voltage pattern as applied to all Stokes, and beam squint (ie, errors in Stokes V caused by differing RR and LL beams). Polarization leakage beams are in DBeamSkyJones. The motivation for this split is differing storage requirements for the unerlying PBMath types, and different methods available to VPSkyJones and DBeamSkyJones.

To Do

Solvable part needs implementation: we need to derive an image of gradients of the elements of the Jones matrix. See VisJones for how to do this.

Definition at line 87 of file VPSkyJones.h.

Constructor & Destructor Documentation

casa::VPSkyJones::VPSkyJones	(	const ROMSColumns &	msc,
		Table &	table,
		const Quantity &	parAngleInc,
		BeamSquint::SquintType	doSquint,
		const Quantity &	skyPositionThreshold = `Quantity(180.,"deg")`
	)

constructor from a VP Table

casa::VPSkyJones::VPSkyJones	(	const ROMSColumns &	msc,
		Bool	makeDefaultPBsFromMS = `True`,
		const Quantity &	parallacticAngleIncrement = `Quantity(720.0,"deg")`,
		BeamSquint::SquintType	doSquint = `BeamSquint::NONE`,
		const Quantity &	skyPositionThreshold = `Quantity(180.,"deg")`
	)

constructor for default PB type associated with MS

casa::VPSkyJones::VPSkyJones	(	const String &	tel,
		PBMath::CommonPB	commonPBType,
		const Quantity &	parallacticAngleIncrement = `Quantity(720.0,"deg")`,
		BeamSquint::SquintType	doSquint = `BeamSquint::NONE`,
		const Quantity &	skyPositionThreshold = `Quantity(180.,"deg")`
	)

constructor for common PB type

casa::VPSkyJones::VPSkyJones	(	const String &	tel,
		PBMath &	myPBMath,
		const Quantity &	parallacticAngleIncrement = `Quantity(720.0,"deg")`,
		BeamSquint::SquintType	doSquint = `BeamSquint::NONE`,
		const Quantity &	skyPositionThreshold = `Quantity(180.,"deg")`
	)

constructor for given PBMath type

casa::VPSkyJones::~VPSkyJones ( ) [inline]

destructor needed so it's not an abstract baseclass

Definition at line 121 of file VPSkyJones.h.

Member Function Documentation

virtual Bool casa::VPSkyJones::isSolveable ( ) [inline, virtual]

Is this solveable?

Reimplemented from casa::BeamSkyJones.

Definition at line 127 of file VPSkyJones.h.

References casa::False.

Type casa::VPSkyJones::type ( ) [inline, virtual]

return SkyJones type