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casacore::LELRegionAsBool Class Reference

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

#include <LELRegion.h>

Inheritance diagram for casacore::LELRegionAsBool:
casacore::LELInterface< Bool >

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< BoolgetScalar () 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< BoolgetArray () const
 Get the result of an array subexpression. More...
Bool isScalar () const
 Is the result of evaluating this expression a scalar ? More...
const IPositionshape () const
 Get the shape of the expression result. More...
const LELAttributegetAttribute () 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:


Review Status

Date Reviewed:



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


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


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)


casacore::LELRegionAsBool::~LELRegionAsBool ( )


Member Function Documentation

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

Get class name.

Implements casacore::LELInterface< Bool >.

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

Get region data.

Implements casacore::LELInterface< Bool >.

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

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

Implements casacore::LELInterface< Bool >.

virtual Bool casacore::LELRegionAsBool::prepareScalarExpr ( )

Do further preparations (e.g.

optimization) on the expression.

Implements casacore::LELInterface< Bool >.

Member Data Documentation

LatticeRegion casacore::LELRegionAsBool::region_p

Member variables.

Definition at line 206 of file LELRegion.h.

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