casacore::MVDouble Class Reference

Class to distinguish external and Measure internal Double. More...

#include <MVDouble.h>

Inheritance diagram for casacore::MVDouble:

Public Member Functions
	MVDouble ()
	Default constructor: generate a zero value. More...
	MVDouble (const MVDouble &other)
	Copy constructor. More...
MVDouble &	operator= (const MVDouble &other)
	Copy assignment. More...
	MVDouble (Double d)
	Constructor from Double. More...
	MVDouble (const Quantity &other)
	Constructor from Quantum : value taken will be the canonical value. More...
	MVDouble (const Quantum< Vector< Double > > &other)
	MVDouble (const Vector< Double > &other)
	Constructor from Vector. More...
	MVDouble (const Vector< Quantity > &other)
	~MVDouble ()
	Destructor. More...
	operator Double () const
	Conversion operator. More...
MVDouble &	operator+= (const MVDouble &other)
	Addition. More...
MVDouble &	operator-= (const MVDouble &other)
Bool	operator== (const MVDouble &other) const
	Comparisons. More...
Bool	operator!= (const MVDouble &other) const
Bool	near (const MVDouble &other, Double tol=1e-13) const
Bool	nearAbs (const MVDouble &other, Double tol=1e-13) const
virtual uInt	type () const
	Tell me your type. More...
virtual void	print (ostream &os) const
	Print data. More...
virtual MeasValue *	clone () const
	Clone. More...
virtual Vector< Double >	getVector () const
	Adjust value: taken from base class, a NOP. 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 Bool	putValue (const Vector< Quantum< Double > > &in)
	Set the internal value if correct values and dimensions. 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...
virtual Vector< Quantum< Double > >	getXRecordValue () const
virtual Vector< Quantum< Double > >	getTMRecordValue () const
virtual void	adjust ()
	Some of the Measure values used need the occasional adjustments to proper values. More...
virtual void	adjust (Double &val)
	Adjust value and return a normalisation value. More...
virtual void	readjust (Double val)
	Re-adjust, i.e. More...

Static Public Member Functions
static void	assure (const MeasValue &in)

Private Attributes
Double	val
	Value. More...

Detailed Description

Class to distinguish external and Measure internal Double.

Intended use:

Public interface

Review Status

Reviewed By:

tcornwel

Date Reviewed:

1996/02/23

Test programs:

tMeasMath

Prerequisite

• MeasValue

Etymology

From Measure, Value and Double

Synopsis

An MVDouble is a simple Double, to be used in simple, single value Measures. Requirements can be found in the MeasValue base class.
The only reasonable constructor is (but all MeasValue constructors are present) MVDouble(Double); and an operator Double takes care of all other possibilities. Its external use is for MeasConvert, to distinguish between input in internal Measure units, and values which have to have units applied.

Example

See e.g. MFrequency

Motivation

To aid coordinate transformations possibilities

Definition at line 83 of file MVDouble.h.

Constructor & Destructor Documentation

casacore::MVDouble::MVDouble

(

)

Default constructor: generate a zero value.

casacore::MVDouble::MVDouble

(

const MVDouble &

other

)

Copy constructor.

casacore::MVDouble::MVDouble

(

Double

d

)

Constructor from Double.

casacore::MVDouble::MVDouble

(

const Quantity &

other

)

Constructor from Quantum : value taken will be the canonical value.

casacore::MVDouble::MVDouble

(

const Quantum< Vector< Double > > &

other

)

casacore::MVDouble::MVDouble

(

const Vector< Double > &

other

)

Constructor from Vector.

A zero value will be taken for an empty vector, the canonical value for a quantum vector.

Thrown Exceptions

• AipsError if vector length > 1

casacore::MVDouble::MVDouble

(

const Vector< Quantity > &

other

)

casacore::MVDouble::~MVDouble

(

)

Destructor.

Member Function Documentation

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

static

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

virtual

Clone.

Implements casacore::MeasValue.

virtual Vector<Quantum<Double> > casacore::MVDouble::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.

Implements casacore::MeasValue.

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

virtual

Adjust value: taken from base class, a NOP.

Get the value in internal units

Implements casacore::MeasValue.

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

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

casacore::MVDouble::operator Double

(

)

const

Conversion operator.

Bool casacore::MVDouble::operator!=

(

const MVDouble &

other

)

const

MVDouble& casacore::MVDouble::operator+=

(

const MVDouble &

other

)

Addition.

MVDouble& casacore::MVDouble::operator-=

(

const MVDouble &

other

)

MVDouble& casacore::MVDouble::operator=

(

const MVDouble &

other

)

Copy assignment.

Bool casacore::MVDouble::operator==

(

const MVDouble &

other

)

const

Comparisons.

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

virtual

Print data.

Implements casacore::MeasValue.

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

virtual

Set the internal value if correct values and dimensions.

Implements casacore::MeasValue.

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

virtual

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

Implements casacore::MeasValue.

virtual uInt casacore::MVDouble::type ( ) const

virtual

Tell me your type.

Implements casacore::MeasValue.

Member Data Documentation

Double casacore::MVDouble::val

private

Value.

Definition at line 158 of file MVDouble.h.

---

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

• casa/casacore/casa/Quanta/MVDouble.h