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: http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1LCRegionSingle.html
Дата изменения: Unknown Дата индексирования: Mon Feb 14 22:29:10 2011 Кодировка: Поисковые слова: annular solar eclipse |
Abstract base class to define a single region. More...
#include <LCRegionSingle.h>
Public Member Functions | |
| LCRegionSingle () | |
| LCRegionSingle (const IPosition &latticeShape) | |
| Construct with the lattice shape only. | |
| LCRegionSingle (const LCRegionSingle &other) | |
| Copy constructor (copy semantics). | |
| virtual | ~LCRegionSingle () |
| virtual Bool | hasMask () const |
| Does the region have a mask? | |
| const Array< Bool > | maskArray () const |
| Get the mask (as an array). | |
| Bool | masksEqual (const LCRegion &other) const |
| Is the mask of this region the same as the mask of the other. | |
| virtual void | set (const Bool &value) |
| The following "put" functions are described in detail in class Lattice . | |
| virtual void | apply (Bool(*function)(Bool)) |
| Replace every element, x, of the Lattice with the result of f(x). | |
| 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. | |
| virtual void | copyData (const Lattice< Bool > &from) |
| Copy the data from the given lattice to this one. | |
Protected Member Functions | |
| LCRegionSingle & | operator= (const LCRegionSingle &other) |
| Assignment (copy semantics) is only useful for derived classes. | |
| void | setMaskPtr (Lattice< Bool > &mask) |
| Set the pointer to the mask in the derived class. | |
| virtual Bool | doGetSlice (Array< Bool > &buffer, const Slicer §ion) |
| Do the actual getting of the mask. | |
| virtual void | doPutSlice (const Array< Bool > &sourceBuffer, const IPosition &where, const IPosition &stride) |
| Do the actual putting of the mask. | |
| virtual IPosition | doNiceCursorShape (uInt maxPixels) const |
| Get the best cursor shape. | |
| virtual LatticeIterInterface < Bool > * | makeIter (const LatticeNavigator &navigator, Bool useRef) const |
| Make an iterator. | |
Private Attributes | |
| Bool | itsHasMask |
| Lattice< Bool > * | itsMaskPtr |
Abstract base class to define a single region.
Public interface
The LCRegion class is the abstract base class for various types of LCRegion's (e.g. LCRegionEllipsoid, LCRegionBox). It contains the minimal bounding box of the region and, if needed, a mask with the same shape as the bounding box. A mask element is true if the element is inside the box.
Each LCRegion object must be able to convert itself to and from a Record. In that way they can be made persistent (in for example a Table).
The LCRegion can be used in several Lattices and Images classes and functions to limit the area to operate on.
The Slicer class is too limited as a region, because it can only describe a rectangular region. Specialized classes are needed to describe arbitrary regions. They need a base class to combine them.
Definition at line 79 of file LCRegionSingle.h.
| casa::LCRegionSingle::LCRegionSingle | ( | ) |
| casa::LCRegionSingle::LCRegionSingle | ( | const IPosition & | latticeShape | ) |
Construct with the lattice shape only.
| casa::LCRegionSingle::LCRegionSingle | ( | const LCRegionSingle & | other | ) |
Copy constructor (copy semantics).
| virtual casa::LCRegionSingle::~LCRegionSingle | ( | ) | [virtual] |
Replace every element, x, of the Lattice with the result of f(x).
You must pass in the address of the function -- so the function must be declared and defined in the scope of your program. All versions of apply require a function that accepts a single argument of type T (the Lattice template type) and return a result of the same type. The first apply expects a function with an argument passed by value; the second expects the argument to be passed by const reference; the third requires an instance of the class Functional<T,T>. The first form ought to run faster for the built-in types, which may be an issue for large Lattices stored in memory, where disk access is not an issue.
Reimplemented from casa::LCRegion.
Reimplemented from casa::LCRegion.
| virtual void casa::LCRegionSingle::apply | ( | const Functional< Bool, Bool > & | function | ) | [virtual] |
Reimplemented from casa::LCRegion.
Copy the data from the given lattice to this one.
The default implementation uses function copyDataTo.
Reimplemented from casa::LCRegion.
| virtual Bool casa::LCRegionSingle::doGetSlice | ( | Array< Bool > & | buffer, | |
| const Slicer & | section | |||
| ) | [protected, virtual] |
Do the actual getting of the mask.
Implements casa::Lattice< Bool >.
| virtual IPosition casa::LCRegionSingle::doNiceCursorShape | ( | uInt | maxPixels | ) | const [protected, virtual] |
Get the best cursor shape.
Reimplemented from casa::LatticeBase.
Reimplemented in casa::LCHDF5Mask, casa::LCMask, and casa::LCPagedMask.
| virtual void casa::LCRegionSingle::doPutSlice | ( | const Array< Bool > & | sourceBuffer, | |
| const IPosition & | where, | |||
| const IPosition & | stride | |||
| ) | [protected, virtual] |
Do the actual putting of the mask.
Only possible if region is writable.
Reimplemented from casa::LCRegion.
| virtual Bool casa::LCRegionSingle::hasMask | ( | ) | const [virtual] |
Does the region have a mask?
Implements casa::LCRegion.
| virtual LatticeIterInterface<Bool>* casa::LCRegionSingle::makeIter | ( | const LatticeNavigator & | navigator, | |
| Bool | useRef | |||
| ) | const [protected, virtual] |
Make an iterator.
When the underlying region has a mask, an iterator for that region is returned. Otherwise the standard iterator is returned.
Reimplemented from casa::Lattice< Bool >.
Reimplemented in casa::LCHDF5Mask, casa::LCMask, and casa::LCPagedMask.
Is the mask of this region the same as the mask of the other.
| LCRegionSingle& casa::LCRegionSingle::operator= | ( | const LCRegionSingle & | other | ) | [protected] |
Assignment (copy semantics) is only useful for derived classes.
Put the value of a single element.
The default implementation uses putSlice.
Reimplemented from casa::LCRegion.
| virtual void casa::LCRegionSingle::set | ( | const Bool & | value | ) | [virtual] |
The following "put" functions are described in detail in class Lattice .
They'll throw an exception is no mask is available or if the mask is not writable.
Reimplemented from casa::LCRegion.
Set the pointer to the mask in the derived class.
Bool casa::LCRegionSingle::itsHasMask [private] |
Definition at line 140 of file LCRegionSingle.h.
Lattice<Bool>* casa::LCRegionSingle::itsMaskPtr [private] |
Definition at line 141 of file LCRegionSingle.h.
1.7.1
