A 3D vector on Earth. More...

#include <MVuvw.h>

Inheritance diagram for casacore::MVuvw:

Public Member Functions
	MVuvw ()
	Default constructor generates a (0,0,0) uvw. More...

	MVuvw (const MVPosition &other)
	Creates from an MVPosition. More...

	MVuvw (Double in0, Double in1, Double in2)
	Creates a specified vector. More...

	MVuvw (Double in0)
	Creates a vector with specified length towards pole. More...

	MVuvw (const Quantity &l)

	MVuvw (const Quantity &l, Double angle0, Double angle1)
	Creates the uvw from specified (azimuth,elevation) angles and length. More...

	MVuvw (const Quantity &l, const Quantity &angle0, const Quantity &angle1)
	Creates the uvw from specified angles and length. More...

	MVuvw (const Quantum< Vector< Double > > &angle)
	If not enough angles: pole assumed (if none), or elevation =0 (if 1) More...

	MVuvw (const Quantity &l, const Quantum< Vector< Double > > &angle)

	MVuvw (const Vector< Double > &other)
	Create from specified length and/or angles and/or uvw. More...

	MVuvw (const Vector< Quantity > &other)

	MVuvw (const MVBaseline &pos, const MVDirection &dr, Bool ew=False)
	uvw from a baseline and a reference direction (in same frame) More...

Double	operator* (const MVuvw &other) const
	Multiplication defined as in-product. More...

Bool	operator== (const MVuvw &other) const
	Equality comparisons. More...

Bool	operator!= (const MVuvw &other) const

Bool	near (const MVuvw &other, Double tol=1e-13) const

Bool	near (const MVuvw &other, Quantity tol) const

Bool	nearAbs (const MVuvw &other, Double tol=1e-13) const

MVuvw	operator- () const
	Addition and subtraction. More...

MVuvw &	operator+= (const MVuvw &right)

MVuvw	operator+ (const MVuvw &right) const

MVuvw &	operator-= (const MVuvw &right)

MVuvw	operator- (const MVuvw &right) const

virtual void	adjust ()
	Normalise direction aspects by adjusting the length to 1. More...

virtual void	adjust (Double &res)
	Adjustment with returned factor. More...

virtual void	readjust (Double res)
	Re-adjust using factor given. More...

virtual Double	radius ()
	Get radius(i.e. More...

Vector< Double >	get () const
	Generate a 3-vector of coordinates (length(m), angles(rad)) More...

const Vector< Double > &	getValue () const
	Generate a 3-vector of x,y,z in m. More...

Quantum< Vector< Double > >	getAngle () const
	Generate angle 2-vector (in rad) More...

Quantum< Vector< Double > >	getAngle (const Unit &unit) const
	and with specified units More...

Quantity	getLength () const
	Generate the length. More...

Quantity	getLength (const Unit &unit) const
	and generate it with the specified units More...

Double	uvwAngle (const MVuvw &other) const
	Get the uvw angle between the directions. More...

Quantity	uvwAngle (const MVuvw &other, const Unit &unit) const

Double	separation (const MVuvw &other) const
	Get the angular separation between two directions. More...

Quantity	separation (const MVuvw &other, const Unit &unit) const

MVuvw	crossProduct (const MVuvw &other) const
	Produce the cross product. More...

virtual void	print (ostream &os) const
	Print data. More...

virtual MeasValue *	clone () const
	Clone. More...

virtual Vector< Double >	getVector () const
	Get the value in internal units. More...

virtual void	putVector (const Vector< Double > &in)
	Set the value from internal units (set 0 for empty vector) More...

virtual Vector< Quantum< Double > >	getRecordValue () const
	Get the internal value as a `Vector<Quantity>`. More...

virtual Vector< Quantum< Double > >	getXRecordValue () const

virtual Vector< Quantum< Double > >	getTMRecordValue () const

virtual Bool	putValue (const Vector< Quantum< Double > > &in)
	Set the internal value if correct values and dimensions. More...

Public Member Functions inherited from casacore::MVPosition
	MVPosition ()
	Default constructor generates a (0,0,0) position. More...

	MVPosition (const MVPosition &other)
	Copy constructor. More...

	MVPosition (Double in0, Double in1, Double in2)
	Creates a specified vector. More...

	MVPosition (Double in0)
	Creates a vector with specified length towards pole. More...

	MVPosition (const Quantity &l)

	MVPosition (const Quantity &l, Double angle0, Double angle1)
	Creates the position from specified (azimuth,elevation) angles and length. More...

	MVPosition (const Quantity &l, const Quantity &angle0, const Quantity &angle1)
	Creates the position from specified angles and length. More...

	MVPosition (const Quantum< Vector< Double > > &angle)
	If not enough angles: pole assumed (if none), or elevation =0 (if 1) More...

	MVPosition (const Quantity &l, const Quantum< Vector< Double > > &angle)

	MVPosition (const Vector< Double > &other)
	Create from specified length and/or angles and/or position. More...

	MVPosition (const Vector< Quantity > &other)

MVPosition &	operator= (const MVPosition &other)
	Copy assignment. More...

virtual	~MVPosition ()
	Destructor. More...

Double	operator* (const MVPosition &other) const
	Multiplication defined as in-product. More...

Bool	operator== (const MVPosition &other) const
	Equality comparisons. More...

Bool	operator!= (const MVPosition &other) const

Bool	near (const MVPosition &other, Double tol=1e-13) const

Bool	near (const MVPosition &other, Quantity tol) const

Bool	nearAbs (const MVPosition &other, Double tol=1e-13) const

MVPosition	operator- () const
	Addition and subtraction. More...

MVPosition &	operator+= (const MVPosition &right)

MVPosition	operator+ (const MVPosition &right) const

MVPosition &	operator-= (const MVPosition &right)

MVPosition	operator- (const MVPosition &right) const

MVPosition &	operator*= (const RotMatrix &right)
	Multiplication with rotation matrix (see also global functions) More...

MVPosition &	operator*= (Double right)
	Multiplication with constant. More...

Double &	operator() (uInt which)
	Obtain an element. More...

const Double &	operator() (uInt which) const

Vector< Double >	get () const
	Generate a 3-vector of coordinates (length(m), angles(rad)) More...

const Vector< Double > &	getValue () const
	Generate a 3-vector of x,y,z in m. More...

Quantum< Vector< Double > >	getAngle () const
	Generate angle 2-vector (in rad) More...

Quantum< Vector< Double > >	getAngle (const Unit &unit) const
	and with specified units More...

Double	getLong () const
	Get the longitudinal angle (in radians) More...

Quantity	getLong (const Unit &unit) const
	and with specified units More...

Double	getLat () const
	Get the latitude angle (rad) More...

Quantity	getLat (const Unit &unit) const
	and with specified units More...

Quantity	getLength () const
	Generate the length. More...

Quantity	getLength (const Unit &unit) const
	and generate it with the specified units More...

Double	positionAngle (const MVPosition &other) const
	Get the position angle between the directions. More...

Quantity	positionAngle (const MVPosition &other, const Unit &unit) const

Double	separation (const MVPosition &other) const
	Get the angular separation between two directions. More...

Quantity	separation (const MVPosition &other, const Unit &unit) const

MVPosition	crossProduct (const MVPosition &other) const
	Produce the cross product. More...

Public Member Functions inherited from casacore::MeasValue
void	dummy_constr () const
	Each derived class should have at least the following constructors: More...

virtual	~MeasValue ()
	Destructor. More...

void	dummy_operator () const
	The following operators should be present at least. More...

Static Public Member Functions
static void	assure (const MeasValue &in)
	Tell me your type. More...

Static Public Member Functions inherited from casacore::MVPosition
static void	assure (const MeasValue &in)
	Tell me your type. More...

Additional Inherited Members
Static Public Attributes inherited from casacore::MVPosition
static const Double	loLimit
	Internal limts codes for negative height. More...

static const Double	hiLimit

Protected Member Functions inherited from casacore::MVPosition
Double	getLat (Double ln) const
	Get the latitude assuming length is given. More...

Protected Attributes inherited from casacore::MVPosition
Vector< Double >	xyz
	Position vector (in m) More...

Detailed Description

A 3D vector on Earth.

Intended use:

Public interface

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25
Test programs:: tMuvw

Prerequisite

MeasValue

Etymology

From Measure, Value and uvw

Synopsis

A MVuvw is a 3-vector of uvws in a rectangular frame with internal units of m.
It can be constructed with:

MVuvw() creates point at origin (0,0,0)
MVuvw(MVuvw) creates a copy
MVuvw(MVPosition) creates (x,y,z) from the given position
MVuvw(Double, Double, Double) creates (x,y,z) with specified values (assuming meters)
MVuvw(Quantity length,Double, Double) creates a MVuvw assuming that the two values are (in radians) angle along 'equator' and towards 'pole'.
MVuvw(Quantity length, Quantity, Quantity) creates a MVuvw assuming angles as in previous, or uvws
MVuvw(Quantity, Quantum<Vector<Double> >) creates a MVuvw from angle vector, using first two angles, and assuming second as zero if not present.
MVuvw(Quantum<Vector<Double> > creates from angles or uvws, depending on the units in the quantum vector. In the angle case, the data derived can be scaled with the readjust() function. If the unit of the quantum vector is length, uvw is assumed.
MVuvw(Vector<Double> creates from angles (less than or equal to two elements) or x,y,z (3 elements).
MVuvw(Vector<Quantity> creates from length+angles, angles, or x,y,z, depending on units.
MVuvw(MVBaseline, MVDirection) creates a uvw in the specified reference direction (in same reference frame)

A void adjust(Double) function normalises the vector to a length of 1; a get() returns as a Double 3-vector the length and angles of the uvw vector; a getAngle() returns a Quantum 2-vector, (uInt) returns the indicated element, and getValue returns the vector.
uvws can be added and subtracted.
The multiplication of two uvws produces the in-product.

Example

See Muvw class.

Motivation

To do coordinate transformations

To Do

Implement for EW
Get sign (especially of V) correct
Let it handle Vectors of UVW
Add some rotation matrix history for speed

Definition at line 111 of file MVuvw.h.

Constructor & Destructor Documentation

casacore::MVuvw::MVuvw ( )

Default constructor generates a (0,0,0) uvw.

casacore::MVuvw::MVuvw ( const MVPosition & other )

Creates from an MVPosition.

casacore::MVuvw::MVuvw	(	Double	in0,
		Double	in1,
		Double	in2
	)

Creates a specified vector.

casacore::MVuvw::MVuvw ( Double in0 )

explicit

Creates a vector with specified length towards pole.

casacore::MVuvw::MVuvw ( const Quantity & l )

casacore::MVuvw::MVuvw	(	const Quantity &	l,
		Double	angle0,
		Double	angle1
	)

Creates the uvw from specified (azimuth,elevation) angles and length.

casacore::MVuvw::MVuvw	(	const Quantity &	l,
		const Quantity &	angle0,
		const Quantity &	angle1
	)

Creates the uvw from specified angles and length.

or uvws

Thrown Exceptions

AipsError if quantities not in angle format

casacore::MVuvw::MVuvw ( const Quantum< Vector< Double > > & angle )

If not enough angles: pole assumed (if none), or elevation =0 (if 1)

casacore::MVuvw::MVuvw	(	const Quantity &	l,
		const Quantum< Vector< Double > > &	angle
	)

casacore::MVuvw::MVuvw ( const Vector< Double > & other )

Create from specified length and/or angles and/or uvw.

casacore::MVuvw::MVuvw ( const Vector< Quantity > & other )

casacore::MVuvw::MVuvw	(	const MVBaseline &	pos,
		const MVDirection &	dr,
		Bool	ew = `False`
	)

uvw from a baseline and a reference direction (in same frame)

Member Function Documentation

virtual void casacore::MVuvw::adjust ( )

virtual

Normalise direction aspects by adjusting the length to 1.

Reimplemented from casacore::MVPosition.

virtual void casacore::MVuvw::adjust ( Double & res )

virtual

Adjustment with returned factor.

Reimplemented from casacore::MVPosition.

static void casacore::MVuvw::assure ( const MeasValue & in )

static

Tell me your type.

virtual MeasValue* casacore::MVuvw::clone ( ) const

virtual

Clone.

Reimplemented from casacore::MVPosition.

MVuvw casacore::MVuvw::crossProduct ( const MVuvw & other ) const

Produce the cross product.

Vector<Double> casacore::MVuvw::get ( ) const

Generate a 3-vector of coordinates (length(m), angles(rad))

Quantum<Vector<Double> > casacore::MVuvw::getAngle ( ) const

Generate angle 2-vector (in rad)

Quantum<Vector<Double> > casacore::MVuvw::getAngle ( const Unit & unit ) const

and with specified units

Quantity casacore::MVuvw::getLength ( ) const

Generate the length.

Quantity casacore::MVuvw::getLength ( const Unit & unit ) const

and generate it with the specified units

virtual Vector<Quantum<Double> > casacore::MVuvw::getRecordValue ( ) const

virtual

Get the internal value as a Vector<Quantity>.

Usable in records. The getXRecordValue() gets additional information for records. Note that the Vectors could be empty.

Reimplemented from casacore::MVPosition.

virtual Vector<Quantum<Double> > casacore::MVuvw::getTMRecordValue ( ) const

inlinevirtual

Reimplemented from casacore::MVPosition.

Definition at line 234 of file MVuvw.h.

References getXRecordValue().

const Vector<Double>& casacore::MVuvw::getValue ( ) const

Generate a 3-vector of x,y,z in m.

virtual Vector<Double> casacore::MVuvw::getVector ( ) const

virtual

Get the value in internal units.

Reimplemented from casacore::MVPosition.

virtual Vector<Quantum<Double> > casacore::MVuvw::getXRecordValue ( ) const

virtual

Reimplemented from casacore::MVPosition.

Referenced by getTMRecordValue().

Bool casacore::MVuvw::near	(	const MVuvw &	other,
		Double	tol = `1e-13`
	)		const

Bool casacore::MVuvw::near	(	const MVuvw &	other,
		Quantity	tol
	)		const

Bool casacore::MVuvw::nearAbs	(	const MVuvw &	other,
		Double	tol = `1e-13`
	)		const

Bool casacore::MVuvw::operator!= ( const MVuvw & other ) const

Double casacore::MVuvw::operator* ( const MVuvw & other ) const

Multiplication defined as in-product.

MVuvw casacore::MVuvw::operator+ ( const MVuvw & right ) const

MVuvw& casacore::MVuvw::operator+= ( const MVuvw & right )

MVuvw casacore::MVuvw::operator- ( ) const

Addition and subtraction.

MVuvw casacore::MVuvw::operator- ( const MVuvw & right ) const

MVuvw& casacore::MVuvw::operator-= ( const MVuvw & right )

Bool casacore::MVuvw::operator== ( const MVuvw & other ) const

Equality comparisons.

virtual void casacore::MVuvw::print ( ostream & os ) const

virtual

Print data.

Reimplemented from casacore::MVPosition.

virtual Bool casacore::MVuvw::putValue ( const Vector< Quantum< Double > > & in )

virtual

Set the internal value if correct values and dimensions.

Reimplemented from casacore::MVPosition.

virtual void casacore::MVuvw::putVector ( const Vector< Double > & in )

virtual

Set the value from internal units (set 0 for empty vector)

Reimplemented from casacore::MVPosition.

virtual Double casacore::MVuvw::radius ( )

virtual

Get radius(i.e.

length of vector, in m) of uvw

Reimplemented from casacore::MVPosition.

virtual void casacore::MVuvw::readjust ( Double res )

virtual

Re-adjust using factor given.

Reimplemented from casacore::MVPosition.

Double casacore::MVuvw::separation ( const MVuvw & other ) const

Get the angular separation between two directions.

Quantity casacore::MVuvw::separation	(	const MVuvw &	other,
		const Unit &	unit
	)		const

Double casacore::MVuvw::uvwAngle ( const MVuvw & other ) const

Get the uvw angle between the directions.

I.e. the angle between the direction from one to the pole, and from one to the other.

Quantity casacore::MVuvw::uvwAngle	(	const MVuvw &	other,
		const Unit &	unit
	)		const

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

casa/Quanta/MVuvw.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Example

Motivation

To Do

Constructor & Destructor Documentation

Thrown Exceptions

Member Function Documentation