Stretch length 1 axes in an LCRegion along straight lines. More...

#include <LCStretch.h>

Inheritance diagram for casa::LCStretch:

Public Member Functions
	LCStretch ()
	LCStretch (const LCRegion &region, const IPosition &stretchAxes, const LCBox &stretchBox)
	Stretch the given region along axes as given by `stretchAxes` from the bottom left corner (blc) to the top right corner (trc) as given by `stretchBox`.
	LCStretch (Bool takeOver, const LCRegion *region, const IPosition &stretchAxes, const LCBox &stretchBox)
	LCStretch (const LCStretch &other)
	Copy constructor (copy semantics).
virtual	~LCStretch ()
LCStretch &	operator= (const LCStretch &other)
	Assignment (copy semantics).
virtual Bool	operator== (const LCRegion &other) const
	Comparison.
virtual LCRegion *	cloneRegion () const
	Make a copy of the derived object.
const LCRegion &	region () const
	Get the original region.
const IPosition &	stretchAxes () const
	Get the stretch axes.
const LCBox &	stretchBox () const
	Get the stretch box.
virtual String	type () const
	Get the region type.
virtual TableRecord	toRecord (const String &tableName) const
	Convert the (derived) object to a record.
Static Public Member Functions
static String	className ()
	Get the class name (to store in the record).
static LCStretch *	fromRecord (const TableRecord &, const String &tableName)
	Convert correct object from a record.
Protected Member Functions
virtual LCRegion *	doTranslate (const Vector< Float > &translateVector, const IPosition &newLatticeShape) const
	Construct another LCRegion (for e.g.
virtual void	multiGetSlice (Array< Bool > &buffer, const Slicer &section)
	Do the actual getting of the mask.
virtual IPosition	doNiceCursorShape (uInt maxPixels) const
	This function is needed here because the niceCursorShape of the contributing region does not make any sense (other dimensionality).
Private Member Functions
void	fill (const IPosition &stretchAxes, const LCBox &stretchBox)
	Fill the object.
Private Attributes
IPosition	itsStretchAxes
LCBox	itsStretchBox

Detailed Description

Stretch length 1 axes in an LCRegion along straight lines.

Intended use:

Public interface

Prerequisite

LCRegion

Synopsis

The LCStretch class is a specialization of class LCRegion . It makes it possible to stretch a LCRegion along straight lines to other dimensions. E.g. a circle in the xy-plane can be stretched to a cylinder in the xyz-space. It can be used for a lattice of any dimensionality as long as the dimensionality of the (hyper-)stretch matches the dimensionality of the lattice.

Example

To Do

Stretch along (slanted) cone lines

Definition at line 71 of file LCStretch.h.

Constructor & Destructor Documentation

casa::LCStretch::LCStretch ( )

casa::LCStretch::LCStretch	(	const LCRegion &	region,
		const IPosition &	stretchAxes,
		const LCBox &	stretchBox
	)

Stretch the given region along axes as given by stretchAxes from the bottom left corner (blc) to the top right corner (trc) as given by stretchBox.

The axes to be stretched need to have length 1 in the original region. Every kind of box (absolute, relative, fractional, unspecified) can be used to define the stretch blc and trc. The dimensionality of the LCStretch region is the same as the dimensionality of the original region.
The second version takes over the pointer when the switch is true.

casa::LCStretch::LCStretch	(	Bool	takeOver,
		const LCRegion *	region,
		const IPosition &	stretchAxes,
		const LCBox &	stretchBox
	)

casa::LCStretch::LCStretch ( const LCStretch & other )

Copy constructor (copy semantics).

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

Member Function Documentation

static String casa::LCStretch::className ( ) [static]

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

virtual LCRegion* casa::LCStretch::cloneRegion ( ) const [virtual]

Make a copy of the derived object.

Implements casa::LCRegion.

virtual IPosition casa::LCStretch::doNiceCursorShape ( uInt maxPixels ) const [protected, virtual]

This function is needed here because the niceCursorShape of the contributing region does not make any sense (other dimensionality).

Reimplemented from casa::LCRegionMulti.

virtual LCRegion* casa::LCStretch::doTranslate	(	const Vector< Float > &	translateVector,
		const IPosition &	newLatticeShape
	)		const `[protected, virtual]`