#include <DiracDFunction.h>

Public Member Functions
	DiracDFunction ()
	Constructs the DiracDFunction, Defaults: height=1, center=0.

	DiracDFunction (const T &height)

	DiracDFunction (const T &height, const T &center)

	DiracDFunction (const DiracDFunction< T > &other)
	Copy constructor (deep copy)

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

DiracDFunction< T > &	operator= (const DiracDFunction< T > &other)
	Copy assignment (deep copy)

virtual	~DiracDFunction ()
	Destructor.

virtual T	eval (typename Function< T >::FunctionArg x) const
	Evaluate the DiracD at `x`.

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

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

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

Public Member Functions inherited from casacore::DiracDParam< T >
	DiracDParam ()
	Constructs the DiracD, Defaults: height=1, center=0.

	DiracDParam (const T &height)

	DiracDParam (const T &height, const T &center)

	DiracDParam (const DiracDParam< T > &other)
	Copy constructor (deep copy)

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

DiracDParam< T > &	operator= (const DiracDParam< T > &other)
	Copy assignment (deep copy)

virtual	~DiracDParam ()
	Destructor.

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

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

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

	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)

virtual	~Function ()
	Destructor.

uInt	nparameters () const
	Returns the number of parameters.

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

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

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

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

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.

const Bool &	mask (const uInt n) const

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

FunctionParam< T > &	parameters ()

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

Bool	parsetp () const

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

void	unlockParam ()

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

virtual void	getMode (RecordInterface &mode) const

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

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

Public Member Functions inherited from casacore::Functional< Domain, Range >
virtual	~Functional ()
	Destructor.

virtual Range	operator() (const Domain &x) const =0
	Map a Domain `x` into a Range `y` value.

Additional Inherited Members
Public Types inherited from casacore::DiracDParam< T >
enum	{ HEIGHT , CENTER }
	Parameter numbers. More...

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.

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

Bool	parset_p
	Indicate parameter written.

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

Detailed Description

template<class T>
class casacore::DiracDFunction< T >

A one dimensional Dirac delta function

Intended use:

Public interface

Review Status

Test programs:: tFunctionHolder

Prerequisite

Etymology

A 1-dimensional Dirac delta.

Synopsis

A DiracD is described by a height, a center and a width (halfwidth). The value is:

height (|x-center| == 0.0)

0 (|x-center| != 0.0)

The parameters are enumerated by HEIGHT, CENTER and WIDTH. They have default values of (1, 0).

Example

DiracDFunction<Double> sf(5.0, 25.0);

sf(25); // = 5.0

casacore::DiracDFunction

Definition DiracDFunction.h:84

Template Type Argument Requirements (T)

T should have standard numerical operators

Thrown Exceptions

AipsError if incorrect parameter number specified.

Definition at line 83 of file DiracDFunction.h.

Constructor & Destructor Documentation

◆ DiracDFunction() [1/5]

template<class T >

casacore::DiracDFunction< T >::DiracDFunction ( )

inline

Constructs the DiracDFunction, Defaults: height=1, center=0.

Warning: Could not use default arguments that worked both with gcc and IRIX

Definition at line 92 of file DiracDFunction.h.

◆ DiracDFunction() [2/5]

template<class T >

casacore::DiracDFunction< T >::DiracDFunction ( const T & height )

inlineexplicit

Definition at line 93 of file DiracDFunction.h.

◆ DiracDFunction() [3/5]

template<class T >

casacore::DiracDFunction< T >::DiracDFunction	(	const T &	height,
		const T &	center
	)

inline

Definition at line 95 of file DiracDFunction.h.

◆ DiracDFunction() [4/5]

template<class T >

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

inline

Copy constructor (deep copy)

Definition at line 101 of file DiracDFunction.h.

◆ DiracDFunction() [5/5]

template<class T >

template<class W >

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

inline

Definition at line 103 of file DiracDFunction.h.

◆ ~DiracDFunction()

template<class T >

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

inlinevirtual

Destructor.

Definition at line 111 of file DiracDFunction.h.

Member Function Documentation

◆ clone()

template<class T >

virtual Function< T > * casacore::DiracDFunction< 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 124 of file DiracDFunction.h.

◆ cloneAD()

template<class T >

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

inlinevirtual

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

Definition at line 125 of file DiracDFunction.h.

◆ cloneNonAD()

template<class T >

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

inlinevirtual

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

Definition at line 127 of file DiracDFunction.h.

◆ eval()

template<class T >

virtual T casacore::DiracDFunction< T >::eval ( typename Function< T >::FunctionArg x ) const

virtual

Evaluate the DiracD at x.

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

◆ operator=()

template<class T >

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

inline

Copy assignment (deep copy)

Definition at line 107 of file DiracDFunction.h.

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

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

scimath/Functionals/DiracDFunction.h

Public Member Functions

Additional Inherited Members

Detailed Description

Intended use:

Review Status

Prerequisite

Etymology

Synopsis

Example

Template Type Argument Requirements (T)

Thrown Exceptions

Constructor & Destructor Documentation

◆ DiracDFunction() [1/5]

◆ DiracDFunction() [2/5]

◆ DiracDFunction() [3/5]

◆ DiracDFunction() [4/5]

◆ DiracDFunction() [5/5]

◆ ~DiracDFunction()

Member Function Documentation

◆ clone()

◆ cloneAD()

◆ cloneNonAD()

◆ eval()

◆ operator=()