LCDifference.h

The LCDifference class is a specialization of class LCRegion. It makes it possible to "subtract" one region from another. For example, imagine an overlapping box and circle. The box - circle is the box with the chunk taken out of it where the circle overlaps. The circle - box is the circle with the chunk taken out of it where the box overlaps.

The center of the difference must be inside the lattice

Example

To Do

Member Description

LCDifference()

LCDifference (const LCRegion& region1, const LCRegion& region2)

Construct the difference region1 - region2.

LCDifference (Bool takeOver, const PtrBlock<const LCRegion*>& regions)

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.

LCDifference (const LCDifference& other)

Copy constructor (copy semantics).

virtual ~LCDifference()

LCDifference& operator= (const LCDifference& other)

Assignment (copy semantics).

virtual Bool operator== (const LCRegion& other) const

Comparison

virtual LCRegion* cloneRegion() const

Make a copy of the derived object.

static String className()

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

virtual String type() const

Get the region type. Returns className()

virtual TableRecord toRecord (const String& tableName) const

Convert the (derived) object to a record.

static LCDifference* fromRecord (const TableRecord&, const String& tableName)

Convert correct object from a record.

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

Construct another LCRegion (for e.g. another lattice) by moving this one. It recalculates the bounding box and mask. A positive translation value indicates "to right".

virtual void multiGetSlice (Array<Bool>& buffer, const Slicer& section)

Do the actual getting of the mask.

void defineBox()

Make the bounding box and determine the offsets.