The base letter class for lattice coordinates in LEL. More...

#include <LELLattCoord.h>

Inheritance diagram for casa::LELLattCoord:

Public Member Functions
	LELLattCoord ()
virtual	~LELLattCoord ()
	A virtual destructor is needed so that it will use the actual destructor in the derived class.
virtual Bool	hasCoordinates () const
	The class does not have true coordinates.
virtual LatticeExprNode	makeSubLattice (const LatticeExprNode &expr, const LattRegionHolder &region) const
	Create a SubLattice for an expression node.
virtual LatticeExprNode	makeExtendLattice (const LatticeExprNode &expr, const IPosition &newShape, const LELLattCoordBase &newCoord) const
	Create an extension for an expression node.
virtual LatticeExprNode	makeRebinLattice (const LatticeExprNode &expr, const IPosition &binning) const
	Create a rebinning for an expression node.
virtual uInt	getSpectralInfo (Vector< Double > &worldCoordinates, const IPosition &shape) const
	Get the coordinates of the spectral axis for the given shape.
virtual String	classname () const
	The name of the class.
virtual Int	compare (const LELLattCoordBase &other) const
	Check how the coordinates of this and that compare.
virtual Int	doCompare (const LELImageCoord &other) const
	Check how the coordinates of this and that image compare.

Detailed Description

The base letter class for lattice coordinates in LEL.

Intended use:

Internal

Review Status

Date Reviewed:: yyyy/mm/dd

Prerequisite

Synopsis

This class is a letter class for the envelope class LELCoordinates . It acts as the coordinates class for Lattice objects without coordinates (like PagedArray).

It does not do anything, but makes it possible that other classes (like LELImageCoord ) implement their own behaviour.

Motivation

It must be possible to handle image coordinates in a lattice expression.

Definition at line 79 of file LELLattCoord.h.

Constructor & Destructor Documentation

casa::LELLattCoord::LELLattCoord ( )

virtual casa::LELLattCoord::~LELLattCoord ( ) [virtual]

A virtual destructor is needed so that it will use the actual destructor in the derived class.

Member Function Documentation

virtual String casa::LELLattCoord::classname ( ) const [virtual]

The name of the class.

Implements casa::LELLattCoordBase.

Reimplemented in casa::LELImageCoord.

virtual Int casa::LELLattCoord::compare ( const LELLattCoordBase & other ) const [virtual]

Check how the coordinates of this and that compare.

Implements casa::LELLattCoordBase.

Reimplemented in casa::LELImageCoord.

virtual Int casa::LELLattCoord::doCompare ( const LELImageCoord & other ) const [virtual]

Check how the coordinates of this and that image compare.

This function is used by conform to make a double virtual dispatch possible.

Implements casa::LELLattCoordBase.

Reimplemented in casa::LELImageCoord.

virtual uInt casa::LELLattCoord::getSpectralInfo	(	Vector< Double > &	worldCoordinates,
		const IPosition &	shape
	)		const `[virtual]`

Get the coordinates of the spectral axis for the given shape.

This function throws an exception as a Lattice has no coordinates.

Implements casa::LELLattCoordBase.

Reimplemented in casa::LELImageCoord.

virtual Bool casa::LELLattCoord::hasCoordinates ( ) const [virtual]

The class does not have true coordinates.

Implements casa::LELLattCoordBase.

Reimplemented in casa::LELImageCoord.

virtual LatticeExprNode casa::LELLattCoord::makeExtendLattice	(	const LatticeExprNode &	expr,
		const IPosition &	newShape,
		const LELLattCoordBase &	newCoord
	)		const `[virtual]`