vnl_fft_prime_factors< T > Struct Template Reference

#include <vnl_fft_prime_factors.h>

Collaboration diagram for vnl_fft_prime_factors< T >:

[legend]List of all members.

Public Methods
	vnl_fft_prime_factors ()
	vnl_fft_prime_factors (int N)
	~vnl_fft_prime_factors ()
T const *	trigs () const
int	number () const
int const *	pqr () const
	operator bool () const
void	resize (int N)

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Detailed Description

template<class T>
struct vnl_fft_prime_factors< T >

Holds prime factor information . Helper class used by the vnl_fft_xd<> FFT routines

Given an integer N of the form N = (2**P)(3**Q)(5**R) split N into its primefactors (2, 3, 5)

Definition at line 24 of file vnl_fft_prime_factors.h.

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Constructor & Destructor Documentation

template<class T> vnl_fft_prime_factors< T >::vnl_fft_prime_factors (    )

template<class T> vnl_fft_prime_factors< T >::vnl_fft_prime_factors (  int    N )  [inline]

constructor takes the size of the signal. Definition at line 30 of file vnl_fft_prime_factors.h.

template<class T> vnl_fft_prime_factors< T >::~vnl_fft_prime_factors (    )  [inline]

Definition at line 32 of file vnl_fft_prime_factors.h.

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Member Function Documentation

template<class T> int vnl_fft_prime_factors< T >::number (    )  const [inline]

number which was factorized. Definition at line 40 of file vnl_fft_prime_factors.h.

template<class T> vnl_fft_prime_factors< T >::operator bool (    )  const [inline]

Definition at line 46 of file vnl_fft_prime_factors.h.

template<class T> int const* vnl_fft_prime_factors< T >::pqr (    )  const [inline]

exponents P, Q, R. Definition at line 44 of file vnl_fft_prime_factors.h.

template<class T> void vnl_fft_prime_factors< T >::resize (  int    N )  [inline]

Definition at line 48 of file vnl_fft_prime_factors.h.

template<class T> T const* vnl_fft_prime_factors< T >::trigs (    )  const [inline]

array of twiddle factors. Definition at line 36 of file vnl_fft_prime_factors.h.

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

• vnl_fft_prime_factors.h

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