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casacore::LCEllipsoid Class Reference

Define an N-dimensional ellipsoidal region of interest. More...

#include <LCEllipsoid.h>

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

Public Member Functions

 LCEllipsoid ()
 
 LCEllipsoid (const IPosition &center, Float radius, const IPosition &latticeShape)
 Construct an N-dimensional sphere with the given center and radius (in pixels). More...
 
 LCEllipsoid (const Vector< Float > &center, Float radius, const IPosition &latticeShape)
 Construct an N-dimensional sphere with the given center and radius (in pixels). More...
 
 LCEllipsoid (const Vector< Double > &center, Double radius, const IPosition &latticeShape)
 
 LCEllipsoid (const Vector< Float > &center, const Vector< Float > &radii, const IPosition &latticeShape)
 Construct an N-dimensional ellipsoid with the given center and radii (in pixels). More...
 
 LCEllipsoid (const Vector< Double > &center, const Vector< Double > &radii, const IPosition &latticeShape)
 
 LCEllipsoid (const Float xcenter, const Float ycenter, const Float majorAxis, const Float minorAxis, const Float theta, const IPosition &latticeShape)
 Construct a two dimensional ellipse with theta being the angle from the x-axis to the major axis of the ellipse in radians. More...
 
 LCEllipsoid (const LCEllipsoid &other)
 Copy constructor (reference semantics). More...
 
virtual ~LCEllipsoid ()
 
LCEllipsoidoperator= (const LCEllipsoid &other)
 Assignment (copy semantics). More...
 
virtual Bool operator== (const LCRegion &other) const
 Comparison. More...
 
virtual LCRegioncloneRegion () const
 Make a copy of the derived object. More...
 
const Vector< Float > & center () const
 Get the center. More...
 
const Vector< Float > & radii () const
 Get the radii. More...
 
const Floattheta () const
 Get the angle of the major axis of the ellipse relative to the x-axis 2-D only, throws exception if ellipse is not 2-D. 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::LCRegionFixed
 LCRegionFixed ()
 
 LCRegionFixed (const IPosition &latticeShape)
 Construct with the lattice shape only. More...
 
 LCRegionFixed (const LCRegionFixed &other)
 Copy constructor (copy semantics). More...
 
virtual ~LCRegionFixed ()
 Destructor. More...
 
const ArrayLattice< Bool > & getMask () const
 Return the mask. 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 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 LCEllipsoidfromRecord (const TableRecord &, const String &tableName)
 Convert correct object from a record. 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
 Construct another LCBox (for e.g. More...
 
- Protected Member Functions inherited from casacore::LCRegionFixed
LCRegionFixedoperator= (const LCRegionFixed &other)
 Assignment (copy semantics) is only useful for derived classes. More...
 
void setMask (const Array< Bool > &mask)
 Set the mask. 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 Member Functions

void fillCenter (const IPosition &center)
 Fill the itsCenter vector from an IPosition. More...
 
Slicer makeBox (const Vector< Float > &radii, const IPosition &latticeShape)
 Make the bounding box from center, radii, and shape. More...
 
void defineMask ()
 Define the mask to indicate which elements are inside the ellipsoid. More...
 
void _defineMask2D ()
 for 2-D ellipse with non-zero theta. More...
 
void _doOutside ()
 set the mask in the case the center lies outside the lattice More...
 

Private Attributes

Vector< FloatitsCenter
 
Vector< FloatitsRadii
 
Vector< Float_epsilon
 small offset to guard against roundoff error More...
 
Float _theta
 for 2-D case only More...
 
Bool _centerIsInside
 is center inside the lattice? More...
 

Detailed Description

Define an N-dimensional ellipsoidal region of interest.

Intended use:

Public interface

Prerequisite

Synopsis

The LCEllipsoid class is a specialization of class LCRegion. It makes it possible to define an N-dimensional ellipsoidal region of interest, which includes the border. A separate constructor exists to define the special case of an N-dimensional sphere.
The center and the radii of the ellipsoid do not need to be pixel aligned. The center of the ellipsoid may be outside the lattice. The current implementation only supports ellipsoids with axes parallel to the lattice axes except in the case of a 2-D ellipse for which a constructor is provided for specifying the angle between the x-axis and major axis of the ellipse.

It can only be used for a lattice of any dimensionality as long as the dimensionality of the (hyper-)ellipsoid matches the dimensionality of the lattice.

Example

To Do

Definition at line 83 of file LCEllipsoid.h.

Constructor & Destructor Documentation

casacore::LCEllipsoid::LCEllipsoid ( )
casacore::LCEllipsoid::LCEllipsoid ( const IPosition center,
Float  radius,
const IPosition latticeShape 
)

Construct an N-dimensional sphere with the given center and radius (in pixels).

The center is pixel-aligned.

casacore::LCEllipsoid::LCEllipsoid ( const Vector< Float > &  center,
Float  radius,
const IPosition latticeShape 
)

Construct an N-dimensional sphere with the given center and radius (in pixels).

The center does not need to be pixel-aligned.

casacore::LCEllipsoid::LCEllipsoid ( const Vector< Double > &  center,
Double  radius,
const IPosition latticeShape 
)
casacore::LCEllipsoid::LCEllipsoid ( const Vector< Float > &  center,
const Vector< Float > &  radii,
const IPosition latticeShape 
)

Construct an N-dimensional ellipsoid with the given center and radii (in pixels).

The center does not need to be pixel-aligned. (the radii are half the length of the axes of the ellipsoid).

casacore::LCEllipsoid::LCEllipsoid ( const Vector< Double > &  center,
const Vector< Double > &  radii,
const IPosition latticeShape 
)
casacore::LCEllipsoid::LCEllipsoid ( const Float  xcenter,
const Float  ycenter,
const Float  majorAxis,
const Float  minorAxis,
const Float  theta,
const IPosition latticeShape 
)

Construct a two dimensional ellipse with theta being the angle from the x-axis to the major axis of the ellipse in radians.

casacore::LCEllipsoid::LCEllipsoid ( const LCEllipsoid other)

Copy constructor (reference semantics).

virtual casacore::LCEllipsoid::~LCEllipsoid ( )
virtual

Member Function Documentation

void casacore::LCEllipsoid::_defineMask2D ( )
private

for 2-D ellipse with non-zero theta.

Works for both cases center inside or outside the lattice.

void casacore::LCEllipsoid::_doOutside ( )
private

set the mask in the case the center lies outside the lattice

const Vector< Float > & casacore::LCEllipsoid::center ( ) const
inline

Get the center.

Definition at line 193 of file LCEllipsoid.h.

References itsCenter.

static String casacore::LCEllipsoid::className ( )
static

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

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

Make a copy of the derived object.

Implements casacore::LCRegion.

void casacore::LCEllipsoid::defineMask ( )
private

Define the mask to indicate which elements are inside the ellipsoid.

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

Construct another LCBox (for e.g.

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

Implements casacore::LCRegion.

void casacore::LCEllipsoid::fillCenter ( const IPosition center)
private

Fill the itsCenter vector from an IPosition.

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

Convert correct object from a record.

Slicer casacore::LCEllipsoid::makeBox ( const Vector< Float > &  radii,
const IPosition latticeShape 
)
private

Make the bounding box from center, radii, and shape.

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

Assignment (copy semantics).

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

Comparison.

Reimplemented from casacore::LCRegionFixed.

const Vector< Float > & casacore::LCEllipsoid::radii ( ) const
inline

Get the radii.

Definition at line 197 of file LCEllipsoid.h.

References itsRadii.

const Float& casacore::LCEllipsoid::theta ( ) const

Get the angle of the major axis of the ellipse relative to the x-axis 2-D only, throws exception if ellipse is not 2-D.

virtual TableRecord casacore::LCEllipsoid::toRecord ( const String tableName) const
virtual

Convert the (derived) object to a record.

Implements casacore::LCRegion.

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

Get the region type.

Returns className()

Implements casacore::LCRegion.

Member Data Documentation

Bool casacore::LCEllipsoid::_centerIsInside
private

is center inside the lattice?

Definition at line 189 of file LCEllipsoid.h.

Vector<Float> casacore::LCEllipsoid::_epsilon
private

small offset to guard against roundoff error

Definition at line 185 of file LCEllipsoid.h.

Float casacore::LCEllipsoid::_theta
private

for 2-D case only

Definition at line 187 of file LCEllipsoid.h.

Vector<Float> casacore::LCEllipsoid::itsCenter
private

Definition at line 182 of file LCEllipsoid.h.

Referenced by center().

Vector<Float> casacore::LCEllipsoid::itsRadii
private

Definition at line 183 of file LCEllipsoid.h.

Referenced by radii().


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