casa::QBase Class Reference

Base for Quantities (i.e. dimensioned values) More...

#include <QBase.h>

Inheritance diagram for casa::QBase:

List of all members.

Public Member Functions
	QBase ()
	Default constructor, generates "".
	QBase (const QBase &other)
	Copy constructor.
	QBase (const Unit &s)
	Construct dimensioned QBase (e.g.
virtual	~QBase ()
	Destructor.
QBase &	operator= (const QBase &other)
	Assignment (copy)
virtual QBase *	clone () const =0
	Get a copy of Quantum.
virtual const Unit &	getFullUnit () const =0
	Get the unit attached to the Quantum (use getUnit() if only interested in the String part of the unit)
virtual void	print (ostream &os) const =0
	Print a Quantum.
virtual uInt	type () const =0
	Get the type of derived Quantum (using QuantumType).
const String &	getUnit () const
	Get units of QBase.
void	setUnit (const Unit &s)
	Re-specify parts of a QBase.
void	setUnit (const QBase &other)
	Set new unit, copied from specified QBase, without changing value.
Bool	isConform (const Unit &s) const
	Check for conformal matching units (e.g.
Bool	isConform (const QBase &other) const
	Using units specified in QBase.
Protected Attributes
Unit	qUnit

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Detailed Description

Base for Quantities (i.e. dimensioned values)

Intended use:

Internal

Review Status

Reviewed By:

UNKNOWN

Date Reviewed:

before2004/08/25

Test programs:

tQuantum

Prerequisite

• Unit

Etymology

QBase is the base class for Quantum .

Synopsis

Quantities are values with a unit. Their basic specification can be one of two forms:

    Quantity( Double value, String unit);       // or: Unit unit
    Quantum<Type> ( Type value, String unit)    // or: Unit unit

See Quantum for details.

Motivation

To provide the possibilty of mixing units from different Quantum<T1>, Quantum<T2>

To Do

• Some inlining (did not work first go)

Definition at line 78 of file QBase.h.

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Constructor & Destructor Documentation

casa::QBase::QBase

(

)

Default constructor, generates "".

casa::QBase::QBase

(

const QBase &

other

)

Copy constructor.

casa::QBase::QBase

(

const Unit &

s

)

Construct dimensioned QBase (e.g.

'km/Mpc')

<h3>Thrown Exceptions</h3><ul>    <li> AipsError if non-matching unit dimensions
</ul>

virtual casa::QBase::~QBase

(

)

[virtual]

Destructor.

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Member Function Documentation

virtual QBase* casa::QBase::clone

(

)

const [pure virtual]

Get a copy of Quantum.

Implemented in casa::Quantum< Qtype >, casa::Quantum< double >, casa::Quantum< Double >, and casa::Quantum< Vector< Double > >.

virtual const Unit& casa::QBase::getFullUnit

(

)

const [pure virtual]

Get the unit attached to the Quantum (use getUnit() if only interested in the String part of the unit)

Implemented in casa::Quantum< Qtype >, casa::Quantum< double >, casa::Quantum< Double >, and casa::Quantum< Vector< Double > >.

const String& casa::QBase::getUnit

(

)

const

Get units of QBase.

Return the string representation of the current units attached to QBase

Bool casa::QBase::isConform

(

const Unit &

s

)

const

Check for conformal matching units (e.g.

dam and Mpc) Using specified units

Bool casa::QBase::isConform

(

const QBase &

other

)

const

Using units specified in QBase.

QBase& casa::QBase::operator=

(

const QBase &

other

)

Assignment (copy)

virtual void casa::QBase::print

(

ostream &

os

)

const [pure virtual]

Print a Quantum.

Implemented in casa::Quantum< Qtype >, casa::Quantum< double >, casa::Quantum< Double >, and casa::Quantum< Vector< Double > >.

void casa::QBase::setUnit

(

const Unit &

s

)

Re-specify parts of a QBase.

Set new unit, without changing value

void casa::QBase::setUnit

(

const QBase &

other

)

Set new unit, copied from specified QBase, without changing value.

virtual uInt casa::QBase::type

(

)

const [pure virtual]

Get the type of derived Quantum (using QuantumType).

All should have: static uInt myType();

Implemented in casa::Quantum< Qtype >, casa::Quantum< double >, casa::Quantum< Double >, and casa::Quantum< Vector< Double > >.

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Member Data Documentation

Unit casa::QBase::qUnit [protected]

Definition at line 139 of file QBase.h.

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

• casacore/casa/Quanta/QBase.h