A one dimensional Sinusoid class. More...

#include <Sinusoid1D.h>

Inheritance diagram for casacore::Sinusoid1D< T >:

Public Member Functions
	Sinusoid1D ()
	Constructs the Sinusoids, Defaults: amplitude=1, period==1, x0=0. More...

	Sinusoid1D (const T &amplitude)

	Sinusoid1D (const T &amplitude, const T &period)

	Sinusoid1D (const T &amplitude, const T &period, const T &x0)

	Sinusoid1D (const Sinusoid1D &other)
	Copy constructor (deep copy) More...

template<class W >
	Sinusoid1D (const Sinusoid1D< W > &other)

Sinusoid1D< T > &	operator= (const Sinusoid1D< T > &other)
	Copy assignment (deep copy) More...

virtual	~Sinusoid1D ()
	Destructor. More...

virtual T	eval (typename Function1D< T >::FunctionArg x) const
	Evaluate the Sinusoid at `x`. More...

virtual Function< T > *	clone () const
	Return a copy of this object from the heap. More...

virtual Function< typename FunctionTraits< T >::DiffType > *	cloneAD () const

virtual Function< typename FunctionTraits< T >::BaseType > *	cloneNonAD () const

Public Member Functions inherited from casacore::Sinusoid1DParam< T >
	Sinusoid1DParam ()
	Constructs the Sinusoids, Defaults: amplitude=1, period==1, x0=0. More...

	Sinusoid1DParam (const T &amplitude)

	Sinusoid1DParam (const T &amplitude, const T &period)

	Sinusoid1DParam (const T &amplitude, const T &period, const T &x0)

	Sinusoid1DParam (const Sinusoid1DParam &other)
	Copy constructor (deep copy) More...

template<class W >
	Sinusoid1DParam (const Sinusoid1DParam< W > &other)

Sinusoid1DParam< T > &	operator= (const Sinusoid1DParam< T > &other)
	Copy assignment (deep copy) More...

virtual	~Sinusoid1DParam ()
	Destructor. More...

virtual const String &	name () const
	Give name of function. More...

T	amplitude () const
	Get or set the amplitude of the Sinusoid. More...

void	setAmplitude (const T &amplitude)

T	x0 () const
	Get or set the x0 of the Sinusoid, the location of a peak. More...

void	setX0 (const T &x0)

T	period () const
	Get or set the period of the Sinusoid in full cycles. More...

void	setPeriod (const T &period)

Public Member Functions inherited from casacore::Function1D< T >
	Function1D ()
	Constructors. More...

	Function1D (const uInt n)

	Function1D (const Vector< T > &in)

	Function1D (const FunctionParam< T > &other)

	Function1D (const Function1D< T, T > &other)

	Function1D (const Function1D< W, X > &other)

virtual	~Function1D ()
	Destructor. More...

virtual uInt	ndim () const
	Returns the number of dimensions of function. More...

Public Member Functions inherited from casacore::Function< T, U >
	Function ()
	Constructors. More...

	Function (const uInt n)

	Function (const Vector< T > &in)

	Function (const FunctionParam< T > &other)

template<class W , class X >
	Function (const Function< W, X > &other)

	Function (const Function< T, U > &other)

virtual	~Function ()
	Destructor. More...

uInt	nparameters () const
	Returns the number of parameters. More...

virtual U	eval (FunctionArg x) const =0
	Evaluate the function object. More...

T &	operator[] (const uInt n)
	Manipulate the nth parameter (0-based) with no index check. More...

const T &	operator[] (const uInt n) const

virtual U	operator() () const
	Evaluate this function object at `x`or at `x, y`. More...

virtual U	operator() (const ArgType &x) const

virtual U	operator() (const Vector< ArgType > &x) const

virtual U	operator() (FunctionArg x) const

virtual U	operator() (const ArgType &x, const ArgType &y) const

virtual U	operator() (const ArgType &x, const ArgType &y, const ArgType &z) const

Bool &	mask (const uInt n)
	Manipulate the mask associated with the nth parameter (e.g. More...

const Bool &	mask (const uInt n) const

const FunctionParam< T > &	parameters () const
	Return the parameter interface. More...

FunctionParam< T > &	parameters ()

const Vector< ArgType > &	argp () const
	Get `arg_p` and `parset_p`. More...

Bool	parsetp () const

void	lockParam ()
	Compiler cannot always find the correct 'const' version of parameter access. More...

void	unlockParam ()

virtual void	setMode (const RecordInterface &mode)
	get/set the function mode. More...

virtual void	getMode (RecordInterface &mode) const

virtual Bool	hasMode () const
	return True if the implementing function supports a mode. More...

ostream &	print (ostream &os) const
	Print the function (i.e. More...

Public Member Functions inherited from casacore::Functional< FunctionTraits< T >::ArgType, U >
virtual	~Functional ()
	Destructor. More...

virtual U	operator() (const FunctionTraits< T >::ArgType &x) const =0
	Map a Domain `x` into a Range `y` value. More...

Public Member Functions inherited from casacore::Functional< Vector< FunctionTraits< T >::ArgType >, U >
virtual	~Functional ()
	Destructor. More...

virtual U	operator() (const Vector< FunctionTraits< T >::ArgType > &x) const =0
	Map a Domain `x` into a Range `y` value. More...

Additional Inherited Members
Public Types inherited from casacore::Sinusoid1DParam< T >
enum	{ AMPLITUDE, PERIOD, X0 }
	Parameter numbers. More...

Public Types inherited from casacore::Function1D< T >
typedef const T *	FunctionArg

Public Types inherited from casacore::Function< T, U >
typedef FunctionTraits< T > ::ArgType	ArgType

typedef const ArgType *	FunctionArg

Protected Attributes inherited from casacore::Function< T, U >
FunctionParam< T >	param_p
	The parameters and masks. More...

Vector< ArgType >	arg_p
	Aid for non-contiguous argument storage. More...

Bool	parset_p
	Indicate parameter written. More...

Bool	locked_p
	Indicate that parameters are expected to be locked from changing. More...

Detailed Description

template<class T>
class casacore::Sinusoid1D< T >

A one dimensional Sinusoid class.

Intended use:

Public interface

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25
Test programs:: tSinusoid1D

Prerequisite

Etymology

A Sinusoid1D functional is designed for calculating a Sinusoid in one dimension.

Synopsis

A Sinusoid1D is described by an amplitude, a period, and a location of a peak. Its fundamental operation is evaluating itself at some x. The parameters (amplitude, period, and x0) may be changed at run time.

The functional form is A*cos(2*pi(x-x0)/P)

The parameter interface (see Sinusoid1DParam class), is used to provide an interface to the Fitting classes.

There are 3 parameters that are used to describe the Sinusoid:

The amplitude of the Sinusoid. This is the value returned using the amplitude member function.
The period of the Sinusoid in the x direction. This is the value returned using the period member function. The period is expressed in full cycles.
The location of a peak of the Sinusoid (i.e. where x=pi+k.2pi)

An enumeration for the AMPLITUDE, PERIOD and X0 parameter index is provided, enabling the setting and reading of parameters with the [] operator. The mask() methods can be used to check and set the parameter masks.

Example

Sinusoid1D<Double> sf(5.0, 25.0, 7);
sf(25);              // = -0.9369
sf.setAmplitude(1.0);
sf[PERIOD] = 2.0;                
sf.setX0(0.0);
sf(0.5);             // = 0.0

Template Type Argument Requirements (T)

T should have standard numerical operators and cos() function. Current implementation only tested for real types.
To obtain derivatives, the derivatives should be defined.

Thrown Exceptions

AipsError if incorrect parameter number specified.
Assertion in debug mode if operator(Vector<>) with empty Vector

Definition at line 114 of file Sinusoid1D.h.

Constructor & Destructor Documentation

template<class T>

casacore::Sinusoid1D< T >::Sinusoid1D ( )

inline

Constructs the Sinusoids, Defaults: amplitude=1, period==1, x0=0.

I.e. a cosinusoid with cos(x).
Warning: Could not use default arguments that worked both with gcc and IRIX

Definition at line 125 of file Sinusoid1D.h.

template<class T>

casacore::Sinusoid1D< T >::Sinusoid1D ( const T & amplitude )

inlineexplicit

Definition at line 126 of file Sinusoid1D.h.

template<class T>

casacore::Sinusoid1D< T >::Sinusoid1D	(	const T &	amplitude,
		const T &	period
	)

inline

Definition at line 128 of file Sinusoid1D.h.

template<class T>

casacore::Sinusoid1D< T >::Sinusoid1D	(	const T &	amplitude,
		const T &	period,
		const T &	x0
	)

inline

Definition at line 130 of file Sinusoid1D.h.

template<class T>

casacore::Sinusoid1D< T >::Sinusoid1D ( const Sinusoid1D< T > & other )

inline

Copy constructor (deep copy)

Definition at line 136 of file Sinusoid1D.h.

template<class T>

template<class W >

casacore::Sinusoid1D< T >::Sinusoid1D ( const Sinusoid1D< W > & other )

inline

Definition at line 138 of file Sinusoid1D.h.

template<class T>

virtual casacore::Sinusoid1D< T >::~Sinusoid1D ( )

inlinevirtual

Destructor.

Definition at line 146 of file Sinusoid1D.h.

Member Function Documentation

template<class T>

virtual Function<T>* casacore::Sinusoid1D< T >::clone ( ) const

inlinevirtual

Return a copy of this object from the heap.

The caller is responsible for deleting this pointer.

Implements casacore::Function< T, U >.

Definition at line 159 of file Sinusoid1D.h.

template<class T>

virtual Function<typename FunctionTraits<T>::DiffType>* casacore::Sinusoid1D< T >::cloneAD ( ) const

inlinevirtual

Reimplemented from casacore::Function< T, U >.

Definition at line 160 of file Sinusoid1D.h.

template<class T>

virtual Function<typename FunctionTraits<T>::BaseType>* casacore::Sinusoid1D< T >::cloneNonAD ( ) const

inlinevirtual

Reimplemented from casacore::Function< T, U >.

Definition at line 162 of file Sinusoid1D.h.

template<class T>

virtual T casacore::Sinusoid1D< T >::eval ( typename Function1D< T >::FunctionArg x ) const

virtual

Evaluate the Sinusoid at x.

If a vector is used as the argument only its first element is used.

template<class T>

Sinusoid1D<T>& casacore::Sinusoid1D< T >::operator= ( const Sinusoid1D< T > & other )

inline

Copy assignment (deep copy)

Definition at line 142 of file Sinusoid1D.h.

References casacore::Sinusoid1DParam< T >::operator=().

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

casa/casacore/scimath/Functionals/Sinusoid1D.h

Public Member Functions

Additional Inherited Members

Detailed Description

template<class T> class casacore::Sinusoid1D< T >

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Example

Template Type Argument Requirements (T)

Thrown Exceptions

Constructor & Destructor Documentation

Member Function Documentation

template<class T>
class casacore::Sinusoid1D< T >