casacore::LELLattCoord Class Reference

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

#include <LELLattCoord.h>

Inheritance diagram for casacore::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 80 of file LELLattCoord.h.

Constructor & Destructor Documentation

casacore::LELLattCoord::LELLattCoord ( )

virtual casacore::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 casacore::LELLattCoord::classname ( ) const [virtual]

The name of the class.

Implements casacore::LELLattCoordBase.

Reimplemented in casacore::LELImageCoord.

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

Check how the coordinates of this and that compare.

Reimplemented in casacore::LELImageCoord.

virtual Int casacore::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 casacore::LELLattCoordBase.

virtual uInt casacore::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 casacore::LELLattCoordBase.

Reimplemented in casacore::LELImageCoord.

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

The class does not have true coordinates.

Implements casacore::LELLattCoordBase.

Reimplemented in casacore::LELImageCoord.

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