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casacore::MVuvw Class Reference

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#include <MVuvw.h>

Public Member Functions

 MVuvw ()
 Default constructor generates a (0,0,0) uvw.
 
 MVuvw (const MVPosition &other)
 Creates from an MVPosition.
 
 MVuvw (Double in0, Double in1, Double in2)
 Creates a specified vector.
 
 MVuvw (Double in0)
 Creates a vector with specified length towards pole.
 
 MVuvw (const Quantity &l)
 
 MVuvw (const Quantity &l, Double angle0, Double angle1)
 Creates the uvw from specified (azimuth,elevation) angles and length.
 
 MVuvw (const Quantity &l, const Quantity &angle0, const Quantity &angle1)
 Creates the uvw from specified angles and length.
 
 MVuvw (const Quantum< Vector< Double > > &angle)
 If not enough angles: pole assumed (if none), or elevation =0 (if 1)
 
 MVuvw (const Quantity &l, const Quantum< Vector< Double > > &angle)
 
 MVuvw (const Vector< Double > &other)
 Create from specified length and/or angles and/or uvw.
 
 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)
 
Double operator* (const MVuvw &other) const
 Multiplication defined as in-product.
 
Bool operator== (const MVuvw &other) const
 Equality comparisons.
 
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.
 
MVuvwoperator+= (const MVuvw &right)
 
MVuvw operator+ (const MVuvw &right) const
 
MVuvwoperator-= (const MVuvw &right)
 
MVuvw operator- (const MVuvw &right) const
 
virtual void adjust ()
 Normalise direction aspects by adjusting the length to 1.
 
virtual void adjust (Double &res)
 Adjustment with returned factor.
 
virtual void readjust (Double res)
 Re-adjust using factor given.
 
virtual Double radius ()
 Get radius(i.e.
 
Vector< Doubleget () const
 Generate a 3-vector of coordinates (length(m), angles(rad))
 
const Vector< Double > & getValue () const
 Generate a 3-vector of x,y,z in m.
 
Quantum< Vector< Double > > getAngle () const
 Generate angle 2-vector (in rad)
 
Quantum< Vector< Double > > getAngle (const Unit &unit) const
 and with specified units
 
Quantity getLength () const
 Generate the length.
 
Quantity getLength (const Unit &unit) const
 and generate it with the specified units
 
Double uvwAngle (const MVuvw &other) const
 Get the uvw angle between the directions.
 
Quantity uvwAngle (const MVuvw &other, const Unit &unit) const
 
Double separation (const MVuvw &other) const
 Get the angular separation between two directions.
 
Quantity separation (const MVuvw &other, const Unit &unit) const
 
MVuvw crossProduct (const MVuvw &other) const
 Produce the cross product.
 
virtual void print (ostream &os) const
 Print data.
 
virtual MeasValueclone () const
 Clone.
 
virtual Vector< DoublegetVector () const
 Get the value in internal units.
 
virtual void putVector (const Vector< Double > &in)
 Set the value from internal units (set 0 for empty vector)
 
virtual Vector< Quantum< Double > > getRecordValue () const
 Get the internal value as a Vector<Quantity>.
 
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.
 
- Public Member Functions inherited from casacore::MVPosition
 MVPosition ()
 Default constructor generates a (0,0,0) position.
 
 MVPosition (const MVPosition &other)
 Copy constructor.
 
 MVPosition (Double in0, Double in1, Double in2)
 Creates a specified vector.
 
 MVPosition (Double in0)
 Creates a vector with specified length towards pole.
 
 MVPosition (const Quantity &l)
 
 MVPosition (const Quantity &l, Double angle0, Double angle1)
 Creates the position from specified (azimuth,elevation) angles and length.
 
 MVPosition (const Quantity &l, const Quantity &angle0, const Quantity &angle1)
 Creates the position from specified angles and length.
 
 MVPosition (const Quantum< Vector< Double > > &angle)
 If not enough angles: pole assumed (if none), or elevation =0 (if 1)
 
 MVPosition (const Quantity &l, const Quantum< Vector< Double > > &angle)
 
 MVPosition (const Vector< Double > &other)
 Create from specified length and/or angles and/or position.
 
 MVPosition (const Vector< Quantity > &other)
 
MVPositionoperator= (const MVPosition &other)
 Copy assignment.
 
virtual ~MVPosition ()
 Destructor.
 
Double operator* (const MVPosition &other) const
 Multiplication defined as in-product.
 
Bool operator== (const MVPosition &other) const
 Equality comparisons.
 
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.
 
MVPositionoperator+= (const MVPosition &right)
 
MVPosition operator+ (const MVPosition &right) const
 
MVPositionoperator-= (const MVPosition &right)
 
MVPosition operator- (const MVPosition &right) const
 
MVPositionoperator*= (const RotMatrix &right)
 Multiplication with rotation matrix (see also global functions)
 
MVPositionoperator*= (Double right)
 Multiplication with constant.
 
Doubleoperator() (uInt which)
 Obtain an element.
 
const Doubleoperator() (uInt which) const
 
Vector< Doubleget () const
 Generate a 3-vector of coordinates (length(m), angles(rad))
 
const Vector< Double > & getValue () const
 Generate a 3-vector of x,y,z in m.
 
Quantum< Vector< Double > > getAngle () const
 Generate angle 2-vector (in rad)
 
Quantum< Vector< Double > > getAngle (const Unit &unit) const
 and with specified units
 
Double getLong () const
 Get the longitudinal angle (in radians)
 
Quantity getLong (const Unit &unit) const
 and with specified units
 
Double getLat () const
 Get the latitude angle (rad)
 
Quantity getLat (const Unit &unit) const
 and with specified units
 
Quantity getLength () const
 Generate the length.
 
Quantity getLength (const Unit &unit) const
 and generate it with the specified units
 
Double positionAngle (const MVPosition &other) const
 Get the position angle between the directions.
 
Quantity positionAngle (const MVPosition &other, const Unit &unit) const
 
Double separation (const MVPosition &other) const
 Get the angular separation between two directions.
 
Quantity separation (const MVPosition &other, const Unit &unit) const
 
MVPosition crossProduct (const MVPosition &other) const
 Produce the cross product.
 
- Public Member Functions inherited from casacore::MeasValue
void dummy_constr () const
 Each derived class should have at least the following constructors:
 
virtual ~MeasValue ()
 Destructor.
 
void dummy_operator () const
 The following operators should be present at least.
 

Static Public Member Functions

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

Additional Inherited Members

- Static Public Attributes inherited from casacore::MVPosition
static const Double loLimit
 Internal limts codes for negative height.
 
static const Double hiLimit
 
- Protected Member Functions inherited from casacore::MVPosition
Double getLat (Double ln) const
 Get the latitude assuming length is given.
 
- Protected Attributes inherited from casacore::MVPosition
Vector< Doublexyz
 Position vector (in m)
 

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

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 109 of file MVuvw.h.

Constructor & Destructor Documentation

◆ MVuvw() [1/12]

casacore::MVuvw::MVuvw ( )

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

◆ MVuvw() [2/12]

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

Creates from an MVPosition.

◆ MVuvw() [3/12]

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

Creates a specified vector.

◆ MVuvw() [4/12]

casacore::MVuvw::MVuvw ( Double in0)
explicit

Creates a vector with specified length towards pole.

◆ MVuvw() [5/12]

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

◆ MVuvw() [6/12]

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

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

◆ MVuvw() [7/12]

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

◆ MVuvw() [8/12]

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

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

◆ MVuvw() [9/12]

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

◆ MVuvw() [10/12]

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

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

◆ MVuvw() [11/12]

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

◆ MVuvw() [12/12]

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

◆ adjust() [1/2]

virtual void casacore::MVuvw::adjust ( )
virtual

Normalise direction aspects by adjusting the length to 1.

Reimplemented from casacore::MVPosition.

◆ adjust() [2/2]

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

Adjustment with returned factor.

Reimplemented from casacore::MVPosition.

◆ assure()

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

Tell me your type.

◆ clone()

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

Clone.

Reimplemented from casacore::MVPosition.

◆ crossProduct()

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

Produce the cross product.

◆ get()

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

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

◆ getAngle() [1/2]

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

Generate angle 2-vector (in rad)

◆ getAngle() [2/2]

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

and with specified units

◆ getLength() [1/2]

Quantity casacore::MVuvw::getLength ( ) const

Generate the length.

◆ getLength() [2/2]

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

and generate it with the specified units

◆ getRecordValue()

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.

◆ getTMRecordValue()

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

Reimplemented from casacore::MVPosition.

Definition at line 232 of file MVuvw.h.

References getXRecordValue().

◆ getValue()

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

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

◆ getVector()

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

Get the value in internal units.

Reimplemented from casacore::MVPosition.

◆ getXRecordValue()

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

Reimplemented from casacore::MVPosition.

Referenced by getTMRecordValue().

◆ near() [1/2]

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

◆ near() [2/2]

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

◆ nearAbs()

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

◆ operator!=()

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

◆ operator*()

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

Multiplication defined as in-product.

◆ operator+()

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

◆ operator+=()

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

◆ operator-() [1/2]

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

Addition and subtraction.

◆ operator-() [2/2]

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

◆ operator-=()

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

◆ operator==()

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

Equality comparisons.

◆ print()

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

Print data.

Reimplemented from casacore::MVPosition.

◆ putValue()

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

Set the internal value if correct values and dimensions.

Reimplemented from casacore::MVPosition.

◆ putVector()

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.

◆ radius()

virtual Double casacore::MVuvw::radius ( )
virtual

Get radius(i.e.

length of vector, in m) of uvw

Reimplemented from casacore::MVPosition.

◆ readjust()

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

Re-adjust using factor given.

Reimplemented from casacore::MVPosition.

◆ separation() [1/2]

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

Get the angular separation between two directions.

◆ separation() [2/2]

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

◆ uvwAngle() [1/2]

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.

◆ uvwAngle() [2/2]

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

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