casacore::LELRegionAsBool Class Reference

Class to convert a region to a boolean node. More...

#include <LELRegion.h>

Inheritance diagram for casacore::LELRegionAsBool:

Public Member Functions
	LELRegionAsBool (const LELRegion &region)
	Constructor. More...
	~LELRegionAsBool ()
	Destructor. More...
virtual void	eval (LELArray< Bool > &result, const Slicer &section) const
	Get region data. More...
virtual LELScalar< Bool >	getScalar () const
	Getting region data as a scalar cannot be done (throws an exception). More...
virtual Bool	prepareScalarExpr ()
	Do further preparations (e.g. More...
virtual String	className () const
	Get class name. More...
Public Member Functions inherited from casacore::LELInterface< Bool >
virtual	~LELInterface ()
	Virtual destructor. More...
virtual void	evalRef (LELArrayRef< Bool > &result, const Slicer &section) const
LELArray< Bool >	getArray () const
	Get the result of an array subexpression. More...
Bool	isScalar () const
	Is the result of evaluating this expression a scalar ? More...
const IPosition &	shape () const
	Get the shape of the expression result. More...
const LELAttribute &	getAttribute () const
	Get expression attribute. More...
virtual Bool	lock (FileLocker::LockType, uInt nattempts)
	Handle locking/syncing of the parts of a lattice expression. More...
virtual void	unlock ()
virtual Bool	hasLock (FileLocker::LockType) const
virtual void	resync ()

Private Attributes
LatticeRegion	region_p
	Member variables. More...

Additional Inherited Members
Static Public Member Functions inherited from casacore::LELInterface< Bool >
static Bool	replaceScalarExpr (CountedPtr< LELInterface< Bool > > &expr)
	If the given expression is a valid scalar, replace it by its result. More...
Protected Member Functions inherited from casacore::LELInterface< Bool >
void	setAttr (const LELAttribute &attrib)
	Set the expression attributes of this object. More...

Detailed Description

Class to convert a region to a boolean node.

Intended use:

Internal

Review Status

Date Reviewed:

yyyy/mm/dd

Prerequisite

• Lattice
• LatticeExprNode
• LELInterface

Etymology

This derived LEL letter class handles a region as a boolean lattice.

Synopsis

This class makes it possible to handle a region as a true boolean lattice without the need to apply the region to an image. It means that it is only possible if the region has absolute lattice coordinates.

A description of the implementation details of the LEL classes can be found in Note 216

Motivation

It is useful to be able to handle a mask as a boolean lattice.

Definition at line 182 of file LELRegion.h.

Constructor & Destructor Documentation

casacore::LELRegionAsBool::LELRegionAsBool

(

const LELRegion &

region

)

Constructor.

casacore::LELRegionAsBool::~LELRegionAsBool

(

)

Destructor.

Member Function Documentation

virtual String casacore::LELRegionAsBool::className ( ) const

virtual

Get class name.

Implements casacore::LELInterface< Bool >.

virtual void casacore::LELRegionAsBool::eval ( LELArray< Bool > &  result, const Slicer &  section  ) const

virtual

Get region data.

Implements casacore::LELInterface< Bool >.

virtual LELScalar<Bool> casacore::LELRegionAsBool::getScalar ( ) const

virtual

Getting region data as a scalar cannot be done (throws an exception).

Implements casacore::LELInterface< Bool >.

virtual Bool casacore::LELRegionAsBool::prepareScalarExpr ( )

virtual

Do further preparations (e.g.

optimization) on the expression.

Implements casacore::LELInterface< Bool >.

Member Data Documentation

LatticeRegion casacore::LELRegionAsBool::region_p

private

Member variables.

Definition at line 206 of file LELRegion.h.

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The documentation for this class was generated from the following file:

• casa/casacore/lattices/LEL/LELRegion.h