casacore::LCDifference Class Reference

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#include <LCDifference.h>

Public Member Functions
	LCDifference ()
	LCDifference (const LCRegion &region1, const LCRegion &region2)
	Construct the difference region1 - region2. More...
	LCDifference (Bool takeOver, const PtrBlock< const LCRegion * > &regions)
	Construct from multiple regions given as a Block. More...
	LCDifference (const LCDifference &other)
	Copy constructor (copy semantics). More...
virtual	~LCDifference ()
LCDifference &	operator= (const LCDifference &other)
	Assignment (copy semantics). More...
virtual Bool	operator== (const LCRegion &other) const
	Comparison. More...
virtual LCRegion *	cloneRegion () const
	Make a copy of the derived object. More...
virtual String	type () const
	Get the region type. More...
virtual TableRecord	toRecord (const String &tableName) const
	Convert the (derived) object to a record. More...
Public Member Functions inherited from casacore::LCRegionMulti
	LCRegionMulti ()
	LCRegionMulti (const LCRegion &region1, const LCRegion &region2)
	Construct from 2 regions. More...
	LCRegionMulti (Bool takeOver, const LCRegion *region1, const LCRegion *region2=0, const LCRegion *region3=0, const LCRegion *region4=0, const LCRegion *region5=0, const LCRegion *region6=0, const LCRegion *region7=0, const LCRegion *region8=0, const LCRegion *region9=0, const LCRegion *region10=0)
	Construct from multiple regions. More...
	LCRegionMulti (Bool takeOver, const PtrBlock< const LCRegion * > &regions)
	Construct from multiple regions given as a Block. More...
	LCRegionMulti (const LCRegionMulti &other)
	Copy constructor (copy semantics). More...
virtual	~LCRegionMulti ()
LCRegionMulti &	operator= (const LCRegionMulti &other)
	Assignment (copy semantics). More...
virtual Bool	hasMask () const
	Does the region have a mask? 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...
virtual void	doPutSlice (const Array< Bool > &sourceBuffer, const IPosition &where, const IPosition &stride)
	Regions can usually not be put; i.e. More...
virtual void	set (const Bool &value)
	Set all elements in the Lattice to the given value. 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::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...
virtual LatticeIterInterface< Bool > *	makeIter (const LatticeNavigator &navigator, Bool useRef) const
	These functions are used by the LatticeIterator class to generate an iterator of the correct type for a specified Lattice. 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 Bool	lock (FileLocker::LockType, uInt nattempts)
	It is strongly recommended to use class LatticeLocker to handle lattice locking. More...
virtual void	unlock ()
virtual Bool	hasLock (FileLocker::LockType) const
virtual void	resync ()
	Resynchronize the Lattice object with the lattice file. More...
virtual void	flush ()
	Flush the data (but do not unlock). More...
virtual void	tempClose ()
	Temporarily close the lattice. More...
virtual void	reopen ()
	Explicitly reopen the temporarily closed lattice. 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 ()
	Get the class name (to store in the record). More...
static LCDifference *	fromRecord (const TableRecord &, const String &tableName)
	Convert correct object from a record. 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
	Construct another LCRegion (for e.g. More...
virtual void	multiGetSlice (Array< Bool > &buffer, const Slicer &section)
	Do the actual getting of the mask. More...
Protected Member Functions inherited from casacore::LCRegionMulti
TableRecord	makeRecord (const String &tableName) const
	Store the contributing regions in a record. More...
void	multiTranslate (PtrBlock< const LCRegion * > &, const Vector< Float > &translateVector, const IPosition &newLatticeShape) const
	Translate all regions. More...
void	fillHasMask ()
	Determine if all regions have mask (used by LCIntersection). More...
Bool	findAreas (IPosition &bufStart, IPosition &bufEnd, IPosition &regStart, IPosition &regEnd, const Slicer &section, uInt regNr) const
	Find which area of the section and region are needed. More...
const PtrBlock< const LCRegion * > &	regions () const
	Get the contributing regions. More...
	LCRegionMulti (const LCRegion *region, const IPosition &latticeShape)
	Construct from lattice shape and region pointer, which is taken over. More...
virtual Bool	doGetSlice (Array< Bool > &buffer, const Slicer &section)
	Do the actual getting of an array of values. More...
virtual IPosition	doNiceCursorShape (uInt maxPixels) const
	Get the best cursor shape. 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 Member Functions
void	defineBox ()
	Make the bounding box and determine the offsets. More...

Additional Inherited Members
Static Protected Member Functions inherited from casacore::LCRegionMulti
static void	unmakeRecord (PtrBlock< const LCRegion * > &, const TableRecord &, const String &tableName)
	Retrieve the contributing objects from the record. More...

Detailed Description

Make the difference of 2 regions.

Intended use:

Public interface

Prerequisite

• LCRegion

Synopsis

The LCDifference class is a specialization of class LCRegion. It makes it possible to "subtract" one region from another. For example, imagine an overlapping box and circle. The box - circle is the box with the chunk taken out of it where the circle overlaps. The circle - box is the circle with the chunk taken out of it where the box overlaps.

The center of the difference must be inside the lattice

Example

Definition at line 72 of file LCDifference.h.

Constructor & Destructor Documentation

LCDifference() [1/4]

casacore::LCDifference::LCDifference

(

)

LCDifference() [2/4]

casacore::LCDifference::LCDifference	(	const LCRegion &	region1,
		const LCRegion &	region2
	)

Construct the difference region1 - region2.

LCDifference() [3/4]

casacore::LCDifference::LCDifference	(	Bool	takeOver,
		const PtrBlock< const LCRegion * > &	regions
	)

Construct from multiple regions given as a Block.

When takeOver is True, the destructor will delete the given regions. Otherwise a copy of the regions is made.

LCDifference() [4/4]

casacore::LCDifference::LCDifference

(

const LCDifference &

other

)

Copy constructor (copy semantics).

~LCDifference()

virtual casacore::LCDifference::~LCDifference ( )

virtual

Member Function Documentation

className()

static String casacore::LCDifference::className ( )

static

Get the class name (to store in the record).

cloneRegion()

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

virtual

Make a copy of the derived object.

Implements casacore::LCRegion.

defineBox()

void casacore::LCDifference::defineBox ( )

private

Make the bounding box and determine the offsets.

doTranslate()

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

protectedvirtual

Construct another LCRegion (for e.g.

another lattice) by moving this one. It recalculates the bounding box and mask. A positive translation value indicates "to right".

Implements casacore::LCRegion.

fromRecord()

static LCDifference* casacore::LCDifference::fromRecord ( const TableRecord &  , const String &  tableName  )

static

Convert correct object from a record.

multiGetSlice()

virtual void casacore::LCDifference::multiGetSlice ( Array< Bool > &  buffer, const Slicer &  section  )

protectedvirtual

Do the actual getting of the mask.

Implements casacore::LCRegionMulti.

operator=()

LCDifference& casacore::LCDifference::operator=

(

const LCDifference &

other

)

Assignment (copy semantics).

operator==()

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

virtual

Comparison.

Reimplemented from casacore::LCRegionMulti.

toRecord()

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

virtual

Convert the (derived) object to a record.

Implements casacore::LCRegion.

type()

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

virtual

Get the region type.

Returns className()

Implements casacore::LCRegion.

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

• lattices/LRegions/LCDifference.h