WCIntersection.h
Classes
- WCIntersection -- Make the intersection of 2 or more image regions. (full description)
Interface
- Public Members
- WCIntersection (const ImageRegion& region1, const ImageRegion& region2)
- WCIntersection (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)
- WCIntersection (const PtrBlock<const ImageRegion*>& regions)
- WCIntersection (Bool takeOver, const PtrBlock<const WCRegion*>& regions)
- WCIntersection (const WCIntersection& other)
- virtual ~WCIntersection()
- WCIntersection& operator= (const WCIntersection& other)
- virtual Bool operator== (const WCRegion& other) const
- virtual WCRegion* cloneRegion() const
- static String className()
- virtual String type() const
- virtual TableRecord toRecord (const String& tableName) const
- static WCIntersection* fromRecord (const TableRecord&, const String& tableName)
- Protected Members
- virtual LCRegion* doToLCRegion (const CoordinateSystem& cSys, const IPosition& shape, const IPosition& pixelAxesMap, const IPosition& outOrder) const
Prerequisite
Synopsis
The WCIntersection class is a specialization of class
WCCompound.
It makes it possible to take the intersection of 2 or more image regions.
Note that only world coordinate regions can be used in a compound,
thus an LCSlicer object is not allowed in an intersection.
The intersection of regions is the collection of the pixels
masked-on in all regions.
The regions in a intersection can have different axes and dimensionalities.
The axes and dimensionality of a intersection are determined by the
collection of all different axes in its regions. Each individual region
will be auto-extended along the axes not being part of the region.
E.g. one can define a WCBox with axis RA and another WCBox with
axis DEC. The intersection will be 2-dim with axes RA and DEC. The first
box will be auto-extended to cover the DEC axis, which results
in a 2-dim box with its DEC axis the length of the image's DEC axis.
Similarly the second box will be auto-extended to cover the RA axis.
Example
Member Description
Construct the intersection of one or more image regions.
The image regions have to contain WCRegion objects, otherwise an
exception is thrown.
Construct from multiple regions given as a Block.
When takeOver is True, the destructor will delete the
given regions. Otherwise a copy of the regions is made.
WCIntersection (const WCIntersection& other)
Copy constructor (copy semantics).
WCIntersection& operator= (const WCIntersection& other)
Assignment (copy semantics).
Comparison
Make a copy of the derived object.
Get the class name (to store in the record).
Get the region type. Returns className()
Convert the (derived) object to a record.
Convert correct object from a record.
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.