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casacore: casa::LattRegionHolder Class Reference
Public Member Functions | Protected Member Functions | Private Attributes

casa::LattRegionHolder Class Reference
[Lattices_module]

Class to hold a region of interest in an image. More...

#include <LattRegionHolder.h>

Inheritance diagram for casa::LattRegionHolder:
casa::ImageRegion

List of all members.

Public Member Functions

 LattRegionHolder (const LCRegion &)
 Construct from a region based on lattice coordinates.
 LattRegionHolder (const LCSlicer &)
 Construct from a slicer based on lattice coordinates.
 LattRegionHolder (LCRegion *)
 Similar constructors as above, but using a pointer.
 LattRegionHolder (LCSlicer *)
 LattRegionHolder (const LattRegionHolder &other)
 Copy constructor (copy semantics).
virtual ~LattRegionHolder ()
LattRegionHolder & operator= (const LattRegionHolder &other)
 Assignment (copy semantics).
virtual LattRegionHolder * clone () const
 Clone the object.
virtual Bool operator== (const LattRegionHolder &other) const
 Comparison.
Bool operator!= (const LattRegionHolder &other) const
Bool isLCRegion () const
 Test if the underlying region is an LCRegion, etc.
Bool isLCSlicer () const
virtual Bool isWCRegion () const
const LCRegion * asLCRegionPtr () const
 Get the region as a pointer to a LCRegion, LCSlicer, or WCRegion.
const LCSlicer * asLCSlicerPtr () const
virtual const WCRegion * asWCRegionPtr () const
uInt ndim () const
 Get the dimensionality.
LatticeRegion toLatticeRegion (const IPosition &shape) const
 Convert to a LatticeRegion using the given shape.
virtual LatticeRegion toLatticeRegion (const CoordinateSystem &cSys, const IPosition &shape) const
 Convert to a LatticeRegion using the given coordinate system (with reference pixel) and shape.
virtual LattRegionHolder * makeUnion (const LattRegionHolder &other) const
 Form a compound from this and the other region.
virtual LattRegionHolder * makeIntersection (const LattRegionHolder &other) const
virtual LattRegionHolder * makeDifference (const LattRegionHolder &other) const
virtual LattRegionHolder * makeComplement () const

Protected Member Functions

 LattRegionHolder (uInt ndim)
 Construct for the given dimensionality (for derived classes).

Private Attributes

LCRegion * itsLC
LCSlicer * itsSlicer
uInt itsNdim

Detailed Description

Class to hold a region of interest in an image.

Intended use:

Public interface

Prerequisite

Synopsis

The only purpose of LattRegionHolder is to have a single object for the various kinds of regions. It can hold a LCRegion , and LCSlicer .

Example

Motivation


It was felt that making an abstract base class LatticeRegion for LCRegion and WCRegion would create undesirable dependencies of module Lattices on module Coordinates. E.g. it would be impossible to have a function toWCRegion. Therefore the container class LattRegionHolder is chosen, from which the container ImageRegion  is derived. 



Definition at line 86 of file LattRegionHolder.h.


Constructor & Destructor Documentation






      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          const LCRegion & 
          
           ) 
          
        

      







Construct from a region based on lattice coordinates. 











      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          const LCSlicer & 
          
           ) 
          
        

      







Construct from a slicer based on lattice coordinates. 











      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          LCRegion * 
          
           ) 
           [explicit]
        

      







Similar constructors as above, but using a pointer. 


It takes over the pointer, so the user should not delete the object. It is deleted by the LattRegionHolder destructor. 











      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          LCSlicer * 
          
           ) 
           [explicit]
        

      















      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          const LattRegionHolder & 
           other
           ) 
          
        

      







Copy constructor (copy semantics). 











      

        

          virtual casa::LattRegionHolder::~LattRegionHolder 
          (
          
           ) 
           [virtual]
        

      















      

        

          casa::LattRegionHolder::LattRegionHolder 
          (
          uInt 
           ndim
           ) 
           [explicit, protected]
        

      







Construct for the given dimensionality (for derived classes). 







Member Function Documentation






      

        

          const LCRegion* casa::LattRegionHolder::asLCRegionPtr 
          (
          
           ) 
           const
        

      







Get the region as a pointer to a LCRegion, LCSlicer, or WCRegion. 


An exception is thrown if the region is not the correct type. Functions isWCRegion(), etc. can be used to test the type. 



Referenced by casa::ImageRegion::asLCRegion().











      

        

          const LCSlicer* casa::LattRegionHolder::asLCSlicerPtr 
          (
          
           ) 
           const
        

      







Referenced by casa::ImageRegion::asLCSlicer().











      

        

          virtual const WCRegion* casa::LattRegionHolder::asWCRegionPtr 
          (
          
           ) 
           const [virtual]
        

      







Reimplemented in casa::ImageRegion.











      

        

          virtual LattRegionHolder* casa::LattRegionHolder::clone 
          (
          
           ) 
           const [virtual]
        

      







Clone the object. 



Reimplemented in casa::ImageRegion.











      

        

          Bool casa::LattRegionHolder::isLCRegion 
          (
          
           ) 
           const [inline]
        

      







Test if the underlying region is an LCRegion, etc. 



Definition at line 169 of file LattRegionHolder.h.



References itsLC.











      

        

          Bool casa::LattRegionHolder::isLCSlicer 
          (
          
           ) 
           const [inline]
        

      







Definition at line 173 of file LattRegionHolder.h.



References itsSlicer.











      

        

          virtual Bool casa::LattRegionHolder::isWCRegion 
          (
          
           ) 
           const [virtual]
        

      







Reimplemented in casa::ImageRegion.











      

        

          virtual LattRegionHolder* casa::LattRegionHolder::makeComplement 
          (
          
           ) 
           const [virtual]
        

      







Reimplemented in casa::ImageRegion.











      

        

          virtual LattRegionHolder* casa::LattRegionHolder::makeDifference 
          (
          const LattRegionHolder & 
           other
           ) 
           const [virtual]
        

      







Reimplemented in casa::ImageRegion.











      

        

          virtual LattRegionHolder* casa::LattRegionHolder::makeIntersection 
          (
          const LattRegionHolder & 
           other
           ) 
           const [virtual]
        

      







Reimplemented in casa::ImageRegion.











      

        

          virtual LattRegionHolder* casa::LattRegionHolder::makeUnion 
          (
          const LattRegionHolder & 
           other
           ) 
           const [virtual]
        

      







Form a compound from this and the other region. 



Reimplemented in casa::ImageRegion.











      

        

          uInt casa::LattRegionHolder::ndim 
          (
          
           ) 
           const [inline]
        

      







Get the dimensionality. 



Definition at line 181 of file LattRegionHolder.h.



References itsNdim.











      

        

          Bool casa::LattRegionHolder::operator!= 
          (
          const LattRegionHolder & 
           other
           ) 
           const [inline]
        

      







Definition at line 177 of file LattRegionHolder.h.











      

        

          LattRegionHolder& casa::LattRegionHolder::operator= 
          (
          const LattRegionHolder & 
           other
           ) 
          
        

      







Assignment (copy semantics). 











      

        

          virtual Bool casa::LattRegionHolder::operator== 
          (
          const LattRegionHolder & 
           other
           ) 
           const [virtual]
        

      







Comparison. 



Reimplemented in casa::ImageRegion.











      

        

          virtual LatticeRegion casa::LattRegionHolder::toLatticeRegion 
          (
          const CoordinateSystem & 
           cSys, 
        

        

          
          
          const IPosition & 
           shape 
        

        

          
          )
           const [virtual]
        

      







Convert to a LatticeRegion using the given coordinate system (with reference pixel) and shape. 


It will also make the region complete (absolute and non-fractional). 



Reimplemented in casa::ImageRegion.











      

        

          LatticeRegion casa::LattRegionHolder::toLatticeRegion 
          (
          const IPosition & 
           shape
           ) 
           const
        

      







Convert to a LatticeRegion using the given shape. 







Member Data Documentation






      

        

          LCRegion* casa::LattRegionHolder::itsLC [private]
        

      







Definition at line 163 of file LattRegionHolder.h.



Referenced by isLCRegion().











      

        

          uInt casa::LattRegionHolder::itsNdim [private]
        

      







Definition at line 165 of file LattRegionHolder.h.



Referenced by ndim().











      

        

          LCSlicer* casa::LattRegionHolder::itsSlicer [private]
        

      







Definition at line 164 of file LattRegionHolder.h.



Referenced by isLCSlicer().







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





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