Muvw.h

Classes

Muvw -- A Measure: uvw on Earth (full description)

class Muvw : public MeasBase<MVuvw, MeasRef<Muvw> >

Types

enum Types

J2000
JMEAN
JTRUE
APP
B1950
BMEAN
BTRUE
GALACTIC
HADEC
AZEL
AZELSW
AZELGEO
AZELSWGEO
JNAT
ECLIPTIC
MECLIPTIC
TECLIPTIC
SUPERGAL
ITRF
TOPO
ICRS
N_Types
DEFAULT = ITRF,
Defaults
AZELNE = AZEL,
Synonyms Synonyms

Interface

Public Members
typedef WHATEVER_SUN_TYPEDEF(Muvw) Types Types
Muvw()
Muvw(const MVuvw &dt)
Muvw(const MVuvw &dt, const Muvw::Ref &rf)
Muvw(const MVuvw &dt, Muvw::Types rf)
Muvw(const Measure *dt)
Muvw(const MeasValue *dt)
Muvw(const Muvw &)
Muvw &operator=(const Muvw &)
virtual ~Muvw()
virtual const String &tellMe() const
static const String &showMe()
virtual uInt type() const
static void assure(const Measure &in)
static Muvw::Types castType(uInt tp)
static const String &showType(Muvw::Types tp)
static const String &showType(uInt tp)
static Bool getType(Muvw::Types &tp, const String &in)
Bool giveMe(Muvw::Ref &mr, const String &in)
virtual Bool setOffset(const Measure &in)
virtual Bool setRefString(const String &in)
virtual const String &getDefaultType() const
virtual const String *const allTypes(Int &nall, Int &nextra, const uInt *&typ) const
static const String *const allMyTypes(Int &nall, Int &nextra, const uInt *&typ)
virtual void checkTypes() const
static void checkMyTypes()
static Muvw::Types fromDirType(const MDirection::Types in)
static MDirection::Types toDirType(const Muvw::Types in)
virtual String getRefString() const
static uInt myType()
Quantum<Vector<Double> > get(const Unit &inunit) const
Quantum<Vector<Double> > getAngle() const
Quantum<Vector<Double> > getAngle(const Unit &inunit) const
virtual Measure *clone() const

Description

Review Status

Reviewed By:
UNKNOWN
Date Reviewed:
before2004/08/25
Programs:
Tests:

Prerequisite

Etymology

From Measure and uvw

Synopsis

Muvw is the derived Measure class for an interferometer uvw. uvws can be given in any of the direction types, or as ITRF, the IERS base.
Note that at the moment no correction for Earth tides (error <~ 0.05 mm/km EW uvw), plate motion (not relevant for telescopes on same plate) and relativistic effects are incorporated. B1950 has the same caveat as in MDirection.

Example

      // Specify an Epoch and a telescope position
	MEpoch tbm(Quantity(50927.92931, "d"));
	MPosition pos(MVPosition(-4750915.84032, 2792906.17778, 
				 -3200483.75028), 
		      MPosition::ITRF);
      // Use them in a frame
	MeasFrame mf(tbm, pos);
      // Specify an uvw (note that values here are in m)
	MVuvw mvb0(100 ,10, 0);
	cout << "uvw: " << mvb0 << endl;
      // Specify a reference (type and where and when) for the following uvw
	Muvw::Ref mbref0(Muvw::ITRF, mf);
	Muvw mb0(mvb0, mbref0);
      // Show the uvw
	cout << "uvw: " << mb0 << endl;
	cout << "uvw reference: " << mbref0 << endl;
      // Another reference
	Muvw::Ref mbref1(Muvw::J2000);
	cout << "uvw reference: " << mbref1 << endl;
      // Convert the uvw coordinates to the other reference and show it
	cout << "Test uvw conversion ..." << endl;
	Muvw::Convert bconv(mb0, mbref1);
	cout << "Converted " << mb0 << endl <<
	  " to " << mbref1 << endl <<
	  " as " << bconv() << endl;

Motivation

To be able to handle conversions between uvw coordinates with different reference directions.

To Do

Member Description

enum Types

Types of known Muvws

Warning The order defines the order in the translation matrix FromTo in the getConvert routine. Do not change the order without changing the array. Additions should be made before N_types, and an additional row and column should be coded in FromTo, and in showType().

typedef WHATEVER_SUN_TYPEDEF(Muvw) Types Types

Reference enum Types (included originally for gcc 2.95)

Muvw()

Tip In the following constructors and other functions, all MeasRef can be replaced with simple Measure::TYPE where no offsets or frames are needed in the reference.
Default constructor; generates the ITRF centre

Muvw(const MVuvw &dt)
Muvw(const MVuvw &dt, const Muvw::Ref &rf)
Muvw(const MVuvw &dt, Muvw::Types rf)
Muvw(const Measure *dt)
Muvw(const MeasValue *dt)

Create from data and reference

Muvw(const Muvw &)
Muvw &operator=(const Muvw &)

Copy constructor and assign

virtual ~Muvw()

virtual const String &tellMe() const
static const String &showMe()
virtual uInt type() const
static void assure(const Measure &in)

Tell me your type

static Muvw::Types castType(uInt tp)
static const String &showType(Muvw::Types tp)
static const String &showType(uInt tp)

Translate reference code. The uInt version has a check for valid codes (i.e. it is a safe cast).

Thrown Exceptions

static Bool getType(Muvw::Types &tp, const String &in)
Bool giveMe(Muvw::Ref &mr, const String &in)

Translate string to reference code

virtual Bool setOffset(const Measure &in)

Set the offset in the reference (False if non-matching Measure)

virtual Bool setRefString(const String &in)

Set the reference type to the specified String. False if illegal string, reference set to DEFAULT.

virtual const String &getDefaultType() const

Get the default reference type

virtual const String *const allTypes(Int &nall, Int &nextra, const uInt *&typ) const
static const String *const allMyTypes(Int &nall, Int &nextra, const uInt *&typ)

Get a list of all known reference codes. nall returns the number in list, nextra the number of specials (like planets) that should be at end of list). typ returns the list of corresponding types.

virtual void checkTypes() const
static void checkMyTypes()

Check if all internal tables of types (both enum and String) are complete and correct. This function is called automatically if and when necessary.

Thrown Exceptions

static Muvw::Types fromDirType(const MDirection::Types in)
static MDirection::Types toDirType(const Muvw::Types in)

Get the correct Muvw type from a given direction type (or v.v.)

virtual String getRefString() const

Get the reference type (for records, including codes like R_)

static uInt myType()

Get my type (as Register)

Quantum<Vector<Double> > get(const Unit &inunit) const
Quantum<Vector<Double> > getAngle() const
Quantum<Vector<Double> > getAngle(const Unit &inunit) const

Get Measure data

virtual Measure *clone() const

Make copy