Class to define a mask as a LEL expression. More...

#include <LCLELMask.h>

Public Member Functions
	LCLELMask ()

	LCLELMask (const LatticeExpr< Bool > &expr)
	Construct from vectors of world coordinates defining the box corners. More...

	LCLELMask (const LCLELMask &other)
	Copy constructor (copy semantics). More...

virtual	~LCLELMask ()
	Destructor. More...

LCLELMask &	operator= (const LCLELMask &other)
	Assignment (copy semantics) More...

virtual Bool	operator== (const LCRegion &other) const
	Comparison. More...

virtual LCRegion *	cloneRegion () const
	Clone a LCLELMask object. More...

virtual Bool	lock (FileLocker::LockType, uInt nattempts)
	Handle the (un)locking. More...

virtual void	unlock ()

virtual Bool	hasLock (FileLocker::LockType) const

virtual void	resync ()
	Resynchronize the PagedArray object with the lattice file. More...

virtual void	tempClose ()
	Temporarily close the lattice. More...

virtual void	reopen ()
	Explicitly reopen the temporarily closed lattice. More...

virtual String	type () const
	Return region type. More...

virtual TableRecord	toRecord (const String &tableName) const
	Convert the LCLELMask object to a record. More...

Public Member Functions inherited from casacore::LCRegionSingle
	LCRegionSingle ()

	LCRegionSingle (const IPosition &latticeShape)
	Construct with the lattice shape only. More...

	LCRegionSingle (const LCRegionSingle &other)
	Copy constructor (copy semantics). More...

virtual	~LCRegionSingle ()

virtual Bool	hasMask () const
	Does the region have a mask? More...

const Array< Bool >	maskArray () const
	Get the mask (as an array). More...

Bool	masksEqual (const LCRegion &other) const
	Is the mask of this region the same as the mask of the other. More...

virtual void	set (const Bool &value)
	The following "put" functions are described in detail in class Lattice . More...

virtual void	apply (Bool(*function)(Bool))
	Replace every element, x, of the Lattice with the result of f(x). More...

virtual void	apply (Bool(*function)(const Bool &))

virtual void	apply (const Functional< Bool, Bool > &function)

virtual void	putAt (const Bool &value, const IPosition &where)
	Put the value of a single element. More...

virtual void	copyData (const Lattice< Bool > &from)
	Copy the data from the given lattice to this one. More...

Public Member Functions inherited from casacore::LCRegion
	LCRegion ()

	LCRegion (const IPosition &latticeShape)
	Construct with the lattice shape only. More...

	LCRegion (const LCRegion &other)
	Copy constructor (copy semantics). More...

virtual	~LCRegion ()

Bool	operator!= (const LCRegion &other) const
	Non-equality. More...

virtual Lattice< Bool > *	clone () const
	Make a copy of the derived object. More...

virtual void	handleDelete ()
	Handle deletion of the region by deleting possible tables. More...

virtual void	handleRename (const String &newName, Bool overwrite)
	Handle renaming the region by renaming possible tables. More...

const String &	comment () const
	Get or set the comment. More...

void	setComment (const String &comment)

LCRegion *	translate (const IPosition &translateVector) const
	Construct another LCRegion (for e.g. More...

LCRegion *	translate (const IPosition &translateVector, const IPosition &newLatticeShape) const

LCRegion *	translate (const Vector< Float > &translateVector) const

LCRegion *	translate (const Vector< Float > &translateVector, const IPosition &newLatticeShape) const

const IPosition &	latticeShape () const
	Give the full lattice shape. More...

const Slicer &	boundingBox () const
	Give the bounding box. More...

Slicer	expand (const Slicer &slicer) const
	Expand a slicer or position in the region to the full lattice. More...

IPosition	expand (const IPosition &index) const

virtual uInt	ndim () const
	Return the dimensionality of the region. More...

virtual IPosition	shape () const
	Return the shape of the region (i.e. More...

virtual Bool	isWritable () const
	Usually the lattice (i.e. More...

Public Member Functions inherited from casacore::Lattice< Bool >
virtual	~Lattice ()
	a virtual destructor is needed so that it will use the actual destructor in the derived class More...

virtual DataType	dataType () const
	Get the data type of the lattice. More...

Bool	operator() (const IPosition &where) const
	Return the value of the single element located at the argument IPosition. More...

virtual Bool	getAt (const IPosition &where) const

Bool	get (COWPtr< Array< Bool > > &buffer, Bool removeDegenerateAxes=False) const
	Functions which extract an Array of values from a Lattice. More...

Bool	get (Array< Bool > &buffer, Bool removeDegenerateAxes=False)

Array< Bool >	get (Bool removeDegenerateAxes=False) const

Bool	getSlice (COWPtr< Array< Bool > > &buffer, const Slicer &section, Bool removeDegenerateAxes=False) const

Bool	getSlice (COWPtr< Array< Bool > > &buffer, const IPosition &start, const IPosition &shape, Bool removeDegenerateAxes=False) const

Bool	getSlice (COWPtr< Array< Bool > > &buffer, const IPosition &start, const IPosition &shape, const IPosition &stride, Bool removeDegenerateAxes=False) const

Bool	getSlice (Array< Bool > &buffer, const Slicer &section, Bool removeDegenerateAxes=False)

Bool	getSlice (Array< Bool > &buffer, const IPosition &start, const IPosition &shape, Bool removeDegenerateAxes=False)

Bool	getSlice (Array< Bool > &buffer, const IPosition &start, const IPosition &shape, const IPosition &stride, Bool removeDegenerateAxes=False)

Array< Bool >	getSlice (const Slicer &section, Bool removeDegenerateAxes=False) const

Array< Bool >	getSlice (const IPosition &start, const IPosition &shape, Bool removeDegenerateAxes=False) const

Array< Bool >	getSlice (const IPosition &start, const IPosition &shape, const IPosition &stride, Bool removeDegenerateAxes=False) const

void	putSlice (const Array< Bool > &sourceBuffer, const IPosition &where, const IPosition &stride)
	A function which places an Array of values within this instance of the Lattice at the location specified by the IPosition "where", incrementing by "stride". More...

void	putSlice (const Array< Bool > &sourceBuffer, const IPosition &where)

void	put (const Array< Bool > &sourceBuffer)

void	operator+= (const Lattice< Bool > &other)
	Add, subtract, multiple, or divide by another Lattice. More...

void	operator-= (const Lattice< Bool > &other)

void	operator*= (const Lattice< Bool > &other)

void	operator/= (const Lattice< Bool > &other)

virtual void	copyDataTo (Lattice< Bool > &to) const
	Copy the data from this lattice to the given lattice. More...

virtual uInt	advisedMaxPixels () const
	This function returns the advised maximum number of pixels to include in the cursor of an iterator. More...

Public Member Functions inherited from casacore::LatticeBase
virtual	~LatticeBase ()
	A virtual destructor is needed so that it will use the actual destructor in the derived class. More...

virtual String	imageType () const
	Get the image type (returns name of derived class). More...

virtual Bool	isPersistent () const
	Is the lattice persistent and can it be loaded by other processes as well? That is the case for a PagedArray or PagedImage and for an ImageExpr which does not use transient lattices or regions. More...

virtual Bool	isPaged () const
	Is the lattice paged to disk? The default implementation returns False. More...

virtual Bool	canReferenceArray () const
	Can the lattice data be referenced as an array section? That is the case for an ArrayLattice or a Temp/SubLattice using it. More...

virtual void	save (const String &fileName) const
	Save the image in an AipsIO file with the given name. More...

virtual void	flush ()
	Flush the data (but do not unlock). More...

virtual String	name (Bool stripPath=False) const
	Return the name of the current Lattice object. More...

virtual size_t	nelements () const
	Return the total number of elements in this Lattice. More...

size_t	size () const

Bool	conform (const LatticeBase &other) const
	Return a value of "True" if this instance of Lattice and 'other' have the same shape, otherwise returns a value of "False". More...

virtual LELCoordinates	lelCoordinates () const
	Return the coordinates of the lattice. More...

IPosition	niceCursorShape (uInt maxPixels) const
	Returns a recommended cursor shape for iterating through all the pixels in the Lattice. More...

IPosition	niceCursorShape () const

virtual Bool	ok () const
	Check class internals - used for debugging. More...

virtual uInt	maximumCacheSize () const
	Maximum cache size - not necessarily all used. More...

virtual void	setMaximumCacheSize (uInt howManyPixels)
	Set the maximum (allowed) cache size as indicated. More...

virtual void	setCacheSizeInTiles (uInt howManyTiles)
	Set the actual cache size for this Array to be big enough for the indicated number of tiles. More...

virtual void	setCacheSizeFromPath (const IPosition &sliceShape, const IPosition &windowStart, const IPosition &windowLength, const IPosition &axisPath)
	Set the cache size as to "fit" the indicated path. More...

virtual void	clearCache ()
	Clears and frees up the caches, but the maximum allowed cache size is unchanged from when setCacheSize was called. More...

virtual void	showCacheStatistics (ostream &os) const
	Report on cache success. More...

Static Public Member Functions
static String	className ()
	Returns LCLELMask. More...

Static Public Member Functions inherited from casacore::LCRegion
static LCRegion *	fromRecord (const TableRecord &, const String &tableName)
	Convert correct object from a record. More...

Protected Member Functions
virtual LCRegion *	doTranslate (const Vector< Float > &translateVector, const IPosition &newLatticeShape) const
	Translating an LCLELMask is not possible, so it throws an exception. More...

Protected Member Functions inherited from casacore::LCRegionSingle
LCRegionSingle &	operator= (const LCRegionSingle &other)
	Assignment (copy semantics) is only useful for derived classes. More...

void	setMaskPtr (Lattice< Bool > &mask)
	Set the pointer to the mask in the derived class. More...

virtual Bool	doGetSlice (Array< Bool > &buffer, const Slicer &section)
	Do the actual getting of the mask. More...

virtual void	doPutSlice (const Array< Bool > &sourceBuffer, const IPosition &where, const IPosition &stride)
	Do the actual putting of the mask. More...

virtual IPosition	doNiceCursorShape (uInt maxPixels) const
	Get the best cursor shape. More...

virtual LatticeIterInterface< Bool > *	makeIter (const LatticeNavigator &navigator, Bool useRef) const
	Make an iterator. More...

Protected Member Functions inherited from casacore::LCRegion
LCRegion &	operator= (const LCRegion &other)
	Assignment (copy semantics) is only useful for derived classes. More...

void	setBoundingBox (const Slicer &boundingBox)
	Sometimes it is inconvenient for a derived class to set the bounding box in the constructor. More...

void	setShapeAndBoundingBox (const IPosition &latticeShape, const Slicer &boundingBox)

void	defineRecordFields (RecordInterface &record, const String &className) const
	Define the type and class name in the record. More...

Protected Member Functions inherited from casacore::Lattice< Bool >
	Lattice ()
	Define default constructor to satisfy compiler. More...

	Lattice (const Lattice< Bool > &)
	Copy constructor and assignment can only be used by derived classes. More...

virtual void	handleMath (const Lattice< Bool > &from, int oper)
	Handle the Math operators (+=, -=, *=, /=). More...

virtual void	handleMathTo (Lattice< Bool > &to, int oper) const

void	handleMathTo (Lattice< Bool > &, int) const

Lattice< Bool > &	operator= (const Lattice< Bool > &)

Protected Member Functions inherited from casacore::LatticeBase
	LatticeBase ()
	Define default constructor to be used by derived classes. More...

	LatticeBase (const LatticeBase &)
	Copy constructor and assignment can only be used by derived classes. More...

LatticeBase &	operator= (const LatticeBase &)

void	throwBoolMath () const
	Throw an exception for arithmetic on a Bool Lattice. More...

Private Attributes
LCBox	itsBox

LatticeExpr< Bool >	itsExpr

Detailed Description

Class to define a mask as a LEL expression.

Intended use:

Public interface

Prerequisite

Synopsis

The LCLELMask class is a specialization of class LCRegion .
It can be used to define an on-the-fly mask for a lattice using a boolean LatticeExpr . The contents of the mask are calculated on the fly from the expression. Thus the mask may change if the data in the lattice(s) used in the expression change.
Caution: This mask is not persistent, thus it cannot be saved with an image; Use class WCLELMask to have a persistent on-the-fly mask; It means that normally a WCLELMask should be used (which gets converted to an LCLELMask when applied to an image);

Example

Motivation

LCLELMask is needed to make

Definition at line 88 of file LCLELMask.h.

Constructor & Destructor Documentation

◆ LCLELMask() [1/3]

casacore::LCLELMask::LCLELMask ( )

◆ LCLELMask() [2/3]

casacore::LCLELMask::LCLELMask ( const LatticeExpr< Bool > & expr )

explicit

Construct from vectors of world coordinates defining the box corners.

It is assumed that the order of the values is in the order of the pixel axes.

◆ LCLELMask() [3/3]

casacore::LCLELMask::LCLELMask ( const LCLELMask & other )

Copy constructor (copy semantics).

◆ ~LCLELMask()

virtual casacore::LCLELMask::~LCLELMask ( )

virtual

Destructor.

Member Function Documentation

◆ className()

static String casacore::LCLELMask::className ( )

static

Returns LCLELMask.

◆ cloneRegion()

virtual LCRegion* casacore::LCLELMask::cloneRegion ( ) const

virtual

Clone a LCLELMask object.

Implements casacore::LCRegion.

◆ doTranslate()

virtual LCRegion* casacore::LCLELMask::doTranslate	(	const Vector< Float > &	translateVector,
		const IPosition &	newLatticeShape
	)		const

protectedvirtual

Translating an LCLELMask is not possible, so it throws an exception.

Implements casacore::LCRegion.

◆ hasLock()

virtual Bool casacore::LCLELMask::hasLock ( FileLocker::LockType ) const

virtual

Reimplemented from casacore::LatticeBase.

◆ lock()

virtual Bool casacore::LCLELMask::lock	(	FileLocker::LockType	,
		uInt	nattempts
	)

virtual

Handle the (un)locking.

Reimplemented from casacore::LatticeBase.

◆ operator=()

LCLELMask& casacore::LCLELMask::operator= ( const LCLELMask & other )

Assignment (copy semantics)

◆ operator==()

virtual Bool casacore::LCLELMask::operator== ( const LCRegion & other ) const

virtual

Comparison.

Reimplemented from casacore::LCRegion.

◆ reopen()

virtual void casacore::LCLELMask::reopen ( )

virtual

Explicitly reopen the temporarily closed lattice.

Reimplemented from casacore::LatticeBase.

◆ resync()

virtual void casacore::LCLELMask::resync ( )

virtual

Resynchronize the PagedArray object with the lattice file.

This function is only useful if no read-locking is used, ie. if the table lock option is UserNoReadLocking or AutoNoReadLocking. In that cases the table system does not acquire a read-lock, thus does not synchronize itself automatically.

Reimplemented from casacore::LatticeBase.

◆ tempClose()

virtual void casacore::LCLELMask::tempClose ( )

virtual

Temporarily close the lattice.

It will be reopened automatically on the next access.

Reimplemented from casacore::LatticeBase.

◆ toRecord()

virtual TableRecord casacore::LCLELMask::toRecord ( const String & tableName ) const

virtual

Convert the LCLELMask object to a record.

This cannot be done as a Lattice expression cannot be made persistent (only Image expressions can, thus only WCLELMask is persistent).
So this function throws an exception.

Implements casacore::LCRegion.

◆ type()

virtual String casacore::LCLELMask::type ( ) const

virtual

Return region type.

Returns the class name

Implements casacore::LCRegion.

◆ unlock()

virtual void casacore::LCLELMask::unlock ( )

virtual

Reimplemented from casacore::LatticeBase.

Member Data Documentation

◆ itsBox

LCBox casacore::LCLELMask::itsBox

private

Definition at line 153 of file LCLELMask.h.

◆ itsExpr

LatticeExpr<Bool> casacore::LCLELMask::itsExpr

private

Definition at line 154 of file LCLELMask.h.

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

lattices/LRegions/LCLELMask.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Intended use:

Prerequisite

Synopsis

Example

Motivation

Constructor & Destructor Documentation

◆ LCLELMask() [1/3]

◆ LCLELMask() [2/3]

◆ LCLELMask() [3/3]

◆ ~LCLELMask()

Member Function Documentation

◆ className()

◆ cloneRegion()

◆ doTranslate()

◆ hasLock()

◆ lock()

◆ operator=()

◆ operator==()

◆ reopen()

◆ resync()

◆ tempClose()

◆ toRecord()

◆ type()

◆ unlock()

Member Data Documentation

◆ itsBox

◆ itsExpr