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casacore::WCConcatenation Class Reference

Combine multiple ImageRegion's into a new dimension. More...

#include <WCConcatenation.h>

Inheritance diagram for casacore::WCConcatenation:
casacore::WCCompound casacore::WCRegion

Public Member Functions

 WCConcatenation (const PtrBlock< const ImageRegion * > &regions, const WCBox &extendRange)
 Combine the given regions. More...
 
 WCConcatenation (Bool takeOver, const PtrBlock< const WCRegion * > &regions, const WCBox &extendRange)
 
 WCConcatenation (const WCConcatenation &other)
 Copy constructor (copy semantics). More...
 
virtual ~WCConcatenation ()
 
WCConcatenationoperator= (const WCConcatenation &other)
 Assignment (copy semantics). More...
 
virtual Bool operator== (const WCRegion &other) const
 Comparison. More...
 
virtual WCRegioncloneRegion () const
 Make a copy of the derived object. 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::WCCompound
 WCCompound (const ImageRegion &region1, const ImageRegion &region2)
 Construct from one or more image regions. More...
 
 WCCompound (const ImageRegion *region1, const ImageRegion *region2=0, const ImageRegion *region3=0, const ImageRegion *region4=0, const ImageRegion *region5=0, const ImageRegion *region6=0, const ImageRegion *region7=0, const ImageRegion *region8=0, const ImageRegion *region9=0, const ImageRegion *region10=0)
 
 WCCompound (const PtrBlock< const ImageRegion * > &regions)
 
 WCCompound (Bool takeOver, const PtrBlock< const WCRegion * > &regions)
 Construct from multiple regions given as a Block. More...
 
 WCCompound (const WCCompound &other)
 Copy constructor (copy semantics). More...
 
virtual ~WCCompound ()
 
const PtrBlock< const WCRegion * > & regions () const
 Get the contributing regions. More...
 
- Public Member Functions inherited from casacore::WCRegion
 WCRegion ()
 
 WCRegion (const WCRegion &other)
 Copy constructor (copy semantics). More...
 
virtual ~WCRegion ()
 Destructor. More...
 
Bool operator!= (const WCRegion &other) const
 
virtual uInt ndim () const
 Get the dimensionality (i.e. More...
 
const RecordgetAxesDesc () const
 Get the description of all axes. More...
 
const RecordgetAxisDesc (uInt axis) const
 Get the description of the given axis. More...
 
Int axisNr (const Record &desc, const Record &axesDesc) const
 Return the axis number of the description of an axis in the full axes description. More...
 
Bool isAxisDescEqual (const Record &desc1, const Record &desc2) const
 Are both axis descriptions equal? More...
 
virtual Bool canExtend () const
 Can the region extend itself? By default it cannot. More...
 
const Stringcomment () const
 Get or set the comment. More...
 
void setComment (const String &comment)
 
virtual LCRegiontoLCRegion (const CoordinateSystem &cSys, const IPosition &shape) const
 Convert to an LCRegion using the given new coordinate system and shape. More...
 
LCRegiontoLCRegionAxes (const CoordinateSystem &cSys, const IPosition &shape, const IPosition &pixelAxesMap, const IPosition &outOrder) const
 Convert to an LCRegion using the given coordinate system and shape. More...
 
void defineRecordFields (RecordInterface &record, const String &className) const
 Define the type and class name in the record. More...
 

Static Public Member Functions

static String className ()
 Get the class name (to store in the record). More...
 
static WCConcatenationfromRecord (const TableRecord &, const String &tableName)
 Convert correct object from a record. More...
 
- Static Public Member Functions inherited from casacore::WCRegion
static WCRegionfromRecord (const TableRecord &rec, const String &tableName)
 Convert correct object from a record. More...
 

Protected Member Functions

virtual LCRegiondoToLCRegion (const CoordinateSystem &cSys, const IPosition &shape, const IPosition &pixelAxesMap, const IPosition &outOrder) const
 Convert to an LCRegion using the given coordinate system and shape. More...
 
- Protected Member Functions inherited from casacore::WCCompound
WCCompoundoperator= (const WCCompound &other)
 Assignment (copy semantics) makes only sense for a derived class. More...
 
void multiToLCRegion (PtrBlock< const LCRegion * > &regions, const CoordinateSystem &cSys, const IPosition &shape, const IPosition &pixelAxesMap, const IPosition &extendAxes) const
 Convert each WCRegion to an LCRegion. More...
 
TableRecord makeRecord (const String &tableName) const
 Store the contributing regions in a record. More...
 
- Protected Member Functions inherited from casacore::WCRegion
WCRegionoperator= (const WCRegion &other)
 Assignment (copy semantics) makes only sense for a derived class. More...
 
void addAxisDesc (const Record &axisDesc)
 Add an axis with its description. More...
 
Record makeAxisDesc (const CoordinateSystem &cSys, uInt pixelAxis) const
 Make a description of a pixel axis in the coordinate system. More...
 
Record makeAxesDesc (const CoordinateSystem &cSys) const
 Make a description of all pixel axes in the coordinate system (in pixel axes order). More...
 
void makeWorldAbsolute (Vector< Double > &world, const Vector< Int > &absRel, const CoordinateSystem &cSys, const IPosition &shape) const
 Convert relative to absolute world as needed. More...
 
void checkAxes (const IPosition &pixelAxes, const CoordinateSystem &cSys, const Vector< String > &quantityUnits) const
 

Private Member Functions

void fill ()
 Do a check and fill the remainder of the object. More...
 

Private Attributes

WCBox itsExtendBox
 

Additional Inherited Members

- Static Protected Member Functions inherited from casacore::WCCompound
static void unmakeRecord (PtrBlock< const WCRegion * > &, const TableRecord &, const String &tableName)
 Retrieve the contributing objects from the record. More...
 
- Static Protected Member Functions inherited from casacore::WCRegion
static void unitInit ()
 
static void convertPixel (Double &pixel, const Double &value, const String &unit, const Int absRel, const Double refPix, const Int shape)
 

Detailed Description

Combine multiple ImageRegion's into a new dimension.

Intended use:

Public interface

Prerequisite

Synopsis

The WCConcatenation class is a specialization of class WCCompound. It makes it possible to combine multiple regions and to add a dimension on them. The axis and the range (beginning and end) of that new dimension have to be specified using an WCBox object. That axes should not be an axis in the given regions.

WCConcatenation can be seen as a mixture of the classes WCUnion and WCExtension. Like WCUnion it combines regions and like WCExtension it increases the dimensionality for the new region (be it with only 1).
Unlike WCUnion the axes have to be the same in all regions, because creating a WCConcatenation means combining similar regions.

E.g. One can define a different polygon in the RA-DEC plane of each channel. WCConcatenation makes it possible to combine the polygons to one 3D region in the RA-DEC-Freq cube.

Example

This example combines n (relative) circles given in the RA,DEC plane along the FREQ-axis. In this example the regions used are circles with the same centers, but it is also possible to combine differently shaped regions. Note that WCConcatenation takes over the pointers to the individual regions, so they do not need to be deleted (the WCConcatenation destructor does it).

IPosition center (2,10,20);
PtrBlock<ImageRegion*> cirPtr(n);
for (i=0; i<n; i++) {
// Each circle has a different radius.
cirPtr(i) = new WCEllipsoid cir1 (center, 1 + i%(n/2));
}
// Construct the concatenation for a range (given as a box in fractions).
// Extend along the FREQ-axis (the 2nd axis in the given cSys).\.
// Take over the region pointers.
Vector<Quantity> blc(1);
Vector<Quantity> trc(1);
blc(0) = Quantity (0.25, "frac");
trc(0) = Quantity (0.75, "frac");
WCConcatenation region (True, cirPtr, WCBox(blc, trc, cSys, IPosition(1,2));

This example is artificial in the sense that WCEllipsoid does not exist yet and the WCBox constructor looks a bit different. One should probably also do a bit more trouble to find out if FREQ is indeed the 2nd axis in the coordinate system.

Definition at line 109 of file WCConcatenation.h.

Constructor & Destructor Documentation

casacore::WCConcatenation::WCConcatenation ( const PtrBlock< const ImageRegion * > &  regions,
const WCBox extendRange 
)

Combine the given regions.

When takeOver is True, the destructor will delete the given regions. Otherwise a copy of the regions is made. The extend range has to be given as a 1-dimensional box.

casacore::WCConcatenation::WCConcatenation ( Bool  takeOver,
const PtrBlock< const WCRegion * > &  regions,
const WCBox extendRange 
)
casacore::WCConcatenation::WCConcatenation ( const WCConcatenation other)

Copy constructor (copy semantics).

virtual casacore::WCConcatenation::~WCConcatenation ( )
virtual

Member Function Documentation

static String casacore::WCConcatenation::className ( )
static

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

virtual WCRegion* casacore::WCConcatenation::cloneRegion ( ) const
virtual

Make a copy of the derived object.

Implements casacore::WCRegion.

virtual LCRegion* casacore::WCConcatenation::doToLCRegion ( const CoordinateSystem cSys,
const IPosition shape,
const IPosition pixelAxesMap,
const IPosition outOrder 
) const
protectedvirtual

Convert to an LCRegion using the given coordinate system and shape.

pixelAxesMap(i) gives the pixel axis in cSys of axes i in the axesDesc.

Implements casacore::WCRegion.

void casacore::WCConcatenation::fill ( )
private

Do a check and fill the remainder of the object.

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

Convert correct object from a record.

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

Assignment (copy semantics).

virtual Bool casacore::WCConcatenation::operator== ( const WCRegion other) const
virtual

Comparison.

Reimplemented from casacore::WCCompound.

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

Convert the (derived) object to a record.

Implements casacore::WCRegion.

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

Get the region type.

Returns className()

Implements casacore::WCRegion.

Member Data Documentation

WCBox casacore::WCConcatenation::itsExtendBox
private

Definition at line 164 of file WCConcatenation.h.


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