Class to define an n-dimensional ellipsoid in world coordinates. More...

#include <WCEllipsoid.h>

Inheritance diagram for casa::WCEllipsoid:

Public Member Functions
	WCEllipsoid (const Vector< Quantity > &center, const Vector< Quantity > &radii, const IPosition &pixelAxes, const CoordinateSystem &cSys, const RegionType::AbsRelType absRel=RegionType::Abs)
	ellipsoid with axes parallel to coordinate axes
	WCEllipsoid (const Vector< Quantity > &center, const Quantity &radius, const IPosition &pixelAxes, const CoordinateSystem &cSys, const RegionType::AbsRelType absRel=RegionType::Abs)
	sphere.
	WCEllipsoid (const Quantity &xcenter, const Quantity &ycenter, const Quantity &majorAxis, const Quantity &minorAxis, const Quantity &theta, const uInt pixelAxis0, const uInt pixelAxis1, const CoordinateSystem &cSys, const RegionType::AbsRelType absRel=RegionType::Abs)
	2-D ellipse .
	WCEllipsoid (const WCEllipsoid &that)
WCEllipsoid &	operator= (const WCEllipsoid &that)
Bool	operator== (const WCRegion &other) const
	Comparison.
WCRegion *	cloneRegion () const
	Clone a WCRegion object.
Bool	canExtend () const
	Can the region extend itself? By default it cannot.
String	type () const
	Return region type.
TableRecord	toRecord (const String &tableName) const
	Convert the (derived) object to a record.
LCRegion *	doToLCRegion (const CoordinateSystem &csys, const IPosition &latticeShape, const IPosition &pixelAxesMap, const IPosition &outOrder) const
	Convert to an LCRegion using the given coordinate system and shape.
Static Public Member Functions
static String	className ()
static WCEllipsoid *	fromRecord (const TableRecord &rec, const String &)
	Convert correct object from a record.
Private Types
enum	SpecialType { NOT_SPECIAL, SPHERE, ELLIPSE_2D }
	WARN do not change the order of the members of this enum or you will break backward compatibility with records previously saved persistently. More...
Private Member Functions
	WCEllipsoid ()
void	_checkPixelAxes () const
void	_checkUnits () const
void	_init ()
Private Attributes
Vector< Quantity >	_center
Vector< Quantity >	_radii
IPosition	_pixelAxes
CoordinateSystem	_csys
RegionType::AbsRelType	_absRel
Quantity	_theta
SpecialType	_specType

Detailed Description

Class to define an n-dimensional ellipsoid in world coordinates.

Intended use:

Public interface

Prerequisite

Synopsis

Motivation

Users must be able to specify ellipsoids in world as well as lattice coordinates.

Definition at line 71 of file WCEllipsoid.h.

Member Enumeration Documentation

enum casa::WCEllipsoid::SpecialType [private]

WARN do not change the order of the members of this enum or you will break backward compatibility with records previously saved persistently.

Add new types to the end of the enum.

Enumerator:

NOT_SPECIAL
SPHERE
ELLIPSE_2D

Definition at line 140 of file WCEllipsoid.h.

Constructor & Destructor Documentation

casa::WCEllipsoid::WCEllipsoid	(	const Vector< Quantity > &	center,
		const Vector< Quantity > &	radii,
		const IPosition &	pixelAxes,
		const CoordinateSystem &	cSys,
		const RegionType::AbsRelType	absRel = `RegionType::Abs`
	)

ellipsoid with axes parallel to coordinate axes

casa::WCEllipsoid::WCEllipsoid	(	const Vector< Quantity > &	center,
		const Quantity &	radius,
		const IPosition &	pixelAxes,
		const CoordinateSystem &	cSys,
		const RegionType::AbsRelType	absRel = `RegionType::Abs`
	)

sphere.

pixelAxes must have the same base units and those pixels musb be square or an exception is thrown.

casa::WCEllipsoid::WCEllipsoid	(	const Quantity &	xcenter,
		const Quantity &	ycenter,
		const Quantity &	majorAxis,
		const Quantity &	minorAxis,
		const Quantity &	theta,
		const uInt	pixelAxis0,
		const uInt	pixelAxis1,
		const CoordinateSystem &	cSys,
		const RegionType::AbsRelType	absRel = `RegionType::Abs`
	)

2-D ellipse .

The axes must have the same base units and those pixels must be square or an exception is thrown. theta is the angle between the pixelAxis0 and the major axis of the ellipse.

casa::WCEllipsoid::WCEllipsoid ( const WCEllipsoid & that )

casa::WCEllipsoid::WCEllipsoid ( ) [private]

Member Function Documentation

void casa::WCEllipsoid::_checkPixelAxes ( ) const [private]

void casa::WCEllipsoid::_checkUnits ( ) const [private]

void casa::WCEllipsoid::_init ( ) [private]

Bool casa::WCEllipsoid::canExtend ( ) const [virtual]

Can the region extend itself? By default it cannot.

Reimplemented from casa::WCRegion.

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

WCRegion* casa::WCEllipsoid::cloneRegion ( ) const [virtual]

Clone a WCRegion object.

Implements casa::WCRegion.

LCRegion* casa::WCEllipsoid::doToLCRegion	(	const CoordinateSystem &	cSys,
		const IPosition &	shape,
		const IPosition &	pixelAxesMap,
		const IPosition &	extendAxes
	)		const `[virtual]`

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

pixelAxesMap(i) is the axis in cSys and shape for region axis i.
outOrder(i) is the axis in the output LCRegion for region axis i.
They always have the same length. If the region can extend itself, the length of pixelAxesMap and outOrder can be more than the dimensionality of the region. The latter axes in them are the extension axes.

Implements casa::WCRegion.

static WCEllipsoid* casa::WCEllipsoid::fromRecord	(	const TableRecord &	rec,
		const String &	tableName
	)		`[static]`

Convert correct object from a record.

Reimplemented from casa::WCRegion.

WCEllipsoid& casa::WCEllipsoid::operator= ( const WCEllipsoid & that )

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

Comparison.

Reimplemented from casa::WCRegion.

TableRecord casa::WCEllipsoid::toRecord ( const String & tableName ) const [virtual]

Convert the (derived) object to a record.

The record can be used to make the object persistent. The tableName argument can be used by derived classes (e.g. LCPagedMask) to put very large objects.

Implements casa::WCRegion.

String casa::WCEllipsoid::type ( ) const [virtual]

Return region type.

Just returns the class name of the derived class.

Implements casa::WCRegion.