Rebin a masked lattice. More...

#include <RebinImage.h>

Inheritance diagram for casacore::RebinLattice< T >:

Public Member Functions
	RebinLattice ()
	Default constructor (Object is unuseable) More...

	RebinLattice (const MaskedLattice< T > &lattice, const IPosition &bin)
	Constructor. More...

	RebinLattice (const RebinLattice< T > &other)
	Copy constructor (reference semantics) More...

virtual	~RebinLattice ()
	Destructor. More...

RebinLattice< T > &	operator= (const RebinLattice< T > &other)
	Assignment (reference semantics) More...

virtual MaskedLattice< T > *	cloneML () const
	Make a copy of the object (reference semantics). More...

virtual Bool	isMasked () const
	Is the lattice masked? It is if its parent lattice is masked. More...

virtual Bool	isPaged () const
	Is the lattice paged to disk? More...

virtual Bool	isWritable () const
	The lattice is not writable. More...

virtual Bool	lock (FileLocker::LockType, uInt nattempts)
	Handle locking of the lattice which is delegated to its parent. 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. More...

virtual void	tempClose ()
	Close the Lattice temporarily (if it is paged to disk). More...

virtual void	reopen ()
	If needed, reopen a temporarily closed Lattice. More...

virtual const LatticeRegion *	getRegionPtr () const
	Get a pointer the region/mask object. More...

virtual IPosition	shape () const
	Returns the shape of the lattice. More...

virtual String	name (Bool stripPath=False) const
	Return the name of the parent lattice. More...

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

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

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

virtual void	doPutSlice (const Array< T > &sourceBuffer, const IPosition &where, const IPosition &stride)
	Do the actual putting of an array of values. More...

virtual Bool	doGetMaskSlice (Array< Bool > &buffer, const Slicer &section)
	Get a section of the mask. More...

Public Member Functions inherited from casacore::MaskedLattice< T >
	MaskedLattice ()
	Default constructor. More...

	MaskedLattice (const MaskedLattice< T > &)
	Copy constructor. More...

virtual	~MaskedLattice ()
	a virtual destructor is needed so that it will use the actual destructor in the derived class More...

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

virtual Bool	hasPixelMask () const
	Does the lattice have a pixelmask? The default implementation returns False. More...

virtual const Lattice< Bool > &	pixelMask () const
	Get access to the pixelmask. More...

virtual Lattice< Bool > &	pixelMask ()

const LatticeRegion &	region () const
	Get the region used. More...

Bool	getMask (COWPtr< Array< Bool > > &buffer, Bool removeDegenerateAxes=False) const
	Get the mask or a slice from the mask. More...

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

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

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

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

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

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

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

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

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

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

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

Public Member Functions inherited from casacore::Lattice< T >
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...

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

virtual T	getAt (const IPosition &where) const

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

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

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

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

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

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

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

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

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

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

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

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

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

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

void	put (const Array< T > &sourceBuffer)

virtual void	set (const T &value)
	Set all elements in the Lattice to the given value. More...

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

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

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

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

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

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

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

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

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

virtual LatticeIterInterface< T > *	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	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 uInt	ndim () const
	Return the number of axes in this Lattice. 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 IPosition	doNiceCursorShape (uInt maxPixels) const
	The function (in the derived classes) doing the actual work. 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 IPosition	rebinShape (const IPosition &shapeLatticeIn, const IPosition &bin)
	Static function needed by LEL. More...

Private Member Functions
Slicer	findOriginalSlicer (const Slicer &section) const

void	getDataAndMask (const Slicer &section)

void	bin (const Array< T > &dataIn)

void	bin (const Array< T > &dataIn, const Array< Bool > &maskIn)

Private Attributes
MaskedLattice< T > *	itsLatticePtr

IPosition	itsBin

Bool	itsAllUnity

Array< T >	itsData
	Cache. More...

Array< Bool >	itsMask

Slicer	itsSlicer

Additional Inherited Members
Protected Member Functions inherited from casacore::MaskedLattice< T >
MaskedLattice< T > &	operator= (const MaskedLattice< T > &)
	Assignment can only be used by derived classes. More...

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

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

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

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

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

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

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...

Detailed Description

template<class T>
class casacore::RebinLattice< T >

Rebin a masked lattice.

Intended use:

Internal

Review Status

Test programs:: tRebinLattice

Prerequisite

MaskedLattice

Synopsis

This class enables you to rebin (data are averaged over bin) a MaskedLattice by a given factor per axis

Example

IPosition shape(2, 10, 20);
TiledShape tShape(shape);
TempLattice<Float> latIn(tShape);
IPosition factors(2, 2, 5);
RebinLattice<Float> rl(latIn, factors);
cerr << "Binned data = " << rl.get() << endl;

Motivation

Definition at line 39 of file RebinImage.h.

Constructor & Destructor Documentation

template<class T >

casacore::RebinLattice< T >::RebinLattice ( )

Default constructor (Object is unuseable)

template<class T >

casacore::RebinLattice< T >::RebinLattice	(	const MaskedLattice< T > &	lattice,
		const IPosition &	bin
	)

Constructor.

The bins don't have to fit integrally. Whatever is left over at the end is treated as a full bin.

template<class T >

casacore::RebinLattice< T >::RebinLattice ( const RebinLattice< T > & other )

Copy constructor (reference semantics)

template<class T >

virtual casacore::RebinLattice< T >::~RebinLattice ( )

virtual

Destructor.

Member Function Documentation

template<class T >

virtual uInt casacore::RebinLattice< T >::advisedMaxPixels ( ) const

virtual

This function returns the recommended maximum number of pixels to include in the cursor of an iterator.

Reimplemented from casacore::Lattice< T >.

template<class T >

void casacore::RebinLattice< T >::bin ( const Array< T > & dataIn )

private

template<class T >

void casacore::RebinLattice< T >::bin	(	const Array< T > &	dataIn,
		const Array< Bool > &	maskIn
	)

private

template<class T >

virtual MaskedLattice<T>* casacore::RebinLattice< T >::cloneML ( ) const

virtual

Make a copy of the object (reference semantics).

Implements casacore::MaskedLattice< T >.

template<class T >

virtual Bool casacore::RebinLattice< T >::doGetMaskSlice	(	Array< Bool > &	buffer,
		const Slicer &	section
	)

virtual

Get a section of the mask.

Slicers with non-unit stride are not yet supported

Reimplemented from casacore::MaskedLattice< T >.

template<class T >

virtual Bool casacore::RebinLattice< T >::doGetSlice	(	Array< T > &	buffer,
		const Slicer &	section
	)

virtual

Do the actual getting of an array of values.

Slicers with non-unit stride are not yet supported

Implements casacore::Lattice< T >.

template<class T >

virtual void casacore::RebinLattice< T >::doPutSlice	(	const Array< T > &	sourceBuffer,
		const IPosition &	where,
		const IPosition &	stride
	)

virtual

Do the actual putting of an array of values.

The lattice is not writable.

Implements casacore::Lattice< T >.

template<class T >

Slicer casacore::RebinLattice< T >::findOriginalSlicer ( const Slicer & section ) const

private

template<class T >

virtual void casacore::RebinLattice< T >::flush ( )

virtual

Flush the data.

Reimplemented from casacore::LatticeBase.

template<class T >

void casacore::RebinLattice< T >::getDataAndMask ( const Slicer & section )

private

template<class T >

virtual const LatticeRegion* casacore::RebinLattice< T >::getRegionPtr ( ) const

virtual

Get a pointer the region/mask object.

It returns 0.

Implements casacore::MaskedLattice< T >.

template<class T >

virtual Bool casacore::RebinLattice< T >::hasLock ( FileLocker::LockType ) const

virtual

Reimplemented from casacore::LatticeBase.

template<class T >

virtual Bool casacore::RebinLattice< T >::isMasked ( ) const

virtual

Is the lattice masked? It is if its parent lattice is masked.

Reimplemented from casacore::MaskedLattice< T >.

template<class T >

virtual Bool casacore::RebinLattice< T >::isPaged ( ) const

virtual

Is the lattice paged to disk?

Reimplemented from casacore::LatticeBase.

template<class T >

virtual Bool casacore::RebinLattice< T >::isWritable ( ) const

virtual

The lattice is not writable.

Reimplemented from casacore::LatticeBase.

template<class T >

virtual Bool casacore::RebinLattice< T >::lock	(	FileLocker::LockType	,
		uInt	nattempts
	)

virtual

Handle locking of the lattice which is delegated to its parent.

It is strongly recommended to use class LatticeLocker to handle lattice locking. It also contains a more detailed explanation of the locking process.

Reimplemented from casacore::LatticeBase.

template<class T >

virtual String casacore::RebinLattice< T >::name ( Bool stripPath = False ) const

virtual

Return the name of the parent lattice.

Reimplemented from casacore::LatticeBase.

template<class T >

virtual Bool casacore::RebinLattice< T >::ok ( ) const

virtual

Check class internals - used for debugging.

Should always return True

Reimplemented from casacore::LatticeBase.

template<class T >

RebinLattice<T>& casacore::RebinLattice< T >::operator= ( const RebinLattice< T > & other )

Assignment (reference semantics)

template<class T >

static IPosition casacore::RebinLattice< T >::rebinShape	(	const IPosition &	shapeLatticeIn,
		const IPosition &	bin
	)

static

Static function needed by LEL.

Applies binning factors to shape to give the shape of the output lattice. Will give the same result as function 'shape'

template<class T >

virtual void casacore::RebinLattice< T >::reopen ( )

virtual

If needed, reopen a temporarily closed Lattice.

Reimplemented from casacore::LatticeBase.

template<class T >

virtual void casacore::RebinLattice< T >::resync ( )

virtual

Resynchronize the Lattice 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.

template<class T >

virtual IPosition casacore::RebinLattice< T >::shape ( ) const

virtual

Returns the shape of the lattice.

Implements casacore::LatticeBase.

template<class T >

virtual void casacore::RebinLattice< T >::tempClose ( )

virtual

Close the Lattice temporarily (if it is paged to disk).

It'll be reopened automatically when needed or when reopen is called explicitly.

Reimplemented from casacore::LatticeBase.