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casacore::LCLELMask Class Reference

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

#include <LCLELMask.h>

Inheritance diagram for casacore::LCLELMask:
casacore::LCRegionSingle casacore::LCRegion casacore::Lattice< Bool > casacore::LatticeBase

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...
 
LCLELMaskoperator= (const LCLELMask &other)
 Assignment (copy semantics) More...
 
virtual Bool operator== (const LCRegion &other) const
 Comparison. More...
 
virtual LCRegioncloneRegion () 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< BoolmaskArray () 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 Stringcomment () const
 Get or set the comment. More...
 
void setComment (const String &comment)
 
LCRegiontranslate (const IPosition &translateVector) const
 Construct another LCRegion (for e.g. More...
 
LCRegiontranslate (const IPosition &translateVector, const IPosition &newLatticeShape) const
 
LCRegiontranslate (const Vector< Float > &translateVector) const
 
LCRegiontranslate (const Vector< Float > &translateVector, const IPosition &newLatticeShape) const
 
const IPositionlatticeShape () const
 Give the full lattice shape. More...
 
const SlicerboundingBox () 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< Boolget (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< BoolgetSlice (const Slicer &section, Bool removeDegenerateAxes=False) const
 
Array< BoolgetSlice (const IPosition &start, const IPosition &shape, Bool removeDegenerateAxes=False) const
 
Array< BoolgetSlice (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 LCRegionfromRecord (const TableRecord &, const String &tableName)
 Convert correct object from a record. More...
 

Protected Member Functions

virtual LCRegiondoTranslate (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
LCRegionSingleoperator= (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
LCRegionoperator= (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
 
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...
 
LatticeBaseoperator= (const LatticeBase &)
 
void throwBoolMath () const
 Throw an exception for arithmetic on a Bool Lattice. More...
 

Private Attributes

LCBox itsBox
 
LatticeExpr< BoolitsExpr
 

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

casacore::LCLELMask::LCLELMask ( )
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.

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

Copy constructor (copy semantics).

virtual casacore::LCLELMask::~LCLELMask ( )
virtual

Destructor.

Member Function Documentation

static String casacore::LCLELMask::className ( )
static

Returns LCLELMask.

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

Clone a LCLELMask object.

Implements casacore::LCRegion.

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.

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

Reimplemented from casacore::LatticeBase.

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

Handle the (un)locking.

Reimplemented from casacore::LatticeBase.

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

Assignment (copy semantics)

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

Comparison.

Reimplemented from casacore::LCRegion.

virtual void casacore::LCLELMask::reopen ( )
virtual

Explicitly reopen the temporarily closed lattice.

Reimplemented from casacore::LatticeBase.

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.

virtual void casacore::LCLELMask::tempClose ( )
virtual

Temporarily close the lattice.

It will be reopened automatically on the next access.

Reimplemented from casacore::LatticeBase.

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.

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

Return region type.

Returns the class name

Implements casacore::LCRegion.

virtual void casacore::LCLELMask::unlock ( )
virtual

Reimplemented from casacore::LatticeBase.

Member Data Documentation

LCBox casacore::LCLELMask::itsBox
private

Definition at line 153 of file LCLELMask.h.

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: