casacore::ExpSincConv< T > Class Template Reference

Exponential times a Sinc. More...

#include <MathFunc.h>

Inheritance diagram for casacore::ExpSincConv< T >:

Public Member Functions
	ExpSincConv (T cut=MathFunc< T >::defcutoff(), T sincparm=MathFunc< T >::defSincparm(), T exppow=MathFunc< T >::defExpPower(), T expscale=MathFunc< T >::defExpScale())
	default constructor
	ExpSincConv (const ExpSincConv< T > &)
	copy constructor
ExpSincConv< T > &	operator= (const ExpSincConv< T > &)
	assignment operator
T	sup_value () const
	get access to the support width
T	value (const T &) const
	and get the value of the function
FuncId	id () const
	return FuncID structure for Table storage/retrieval.
Private Member Functions
MathFunc< T > *	clone () const
	for every derived class, return new of that class with its own parameters
Private Attributes
T	sup_width
T	scale
T	exponent
T	sincpByPi

Detailed Description

template<class T>
class casacore::ExpSincConv< T >

Exponential times a Sinc.

Synopsis

An Exponential times a Sinc

The value(T &x) is given by Exp(-(abs(x) / expscale) ** exppow) * Sinc( pi * x / sincparm)

where the 3 paramaters correspond to those in the default constructor Note that the default case of exppow = 2 is a Gaussian times a Sinc. Since this is often a useful case, that parameter appears last in the constructor.

Definition at line 505 of file MathFunc.h.

Constructor & Destructor Documentation

template<class T>

casacore::ExpSincConv< T >::ExpSincConv	(	T	cut = `MathFunc< T >::defcutoff()`,
		T	sincparm = `MathFunc< T >::defSincparm()`,
		T	exppow = `MathFunc< T >::defExpPower()`,
		T	expscale = `MathFunc< T >::defExpScale()`
	)