NFFT: nfsftl_plan Struct Reference

NFFT 3.5.3alpha

data structure for an NFSFT (nonequispaced fast spherical Fourier transform) plan with long double precision More...

#include <nfft3.h>

Data Fields
NFFT_INT	N_total
	Total number of Fourier coefficients.

NFFT_INT	M_total
	Total number of samples.

fftwl_complex *	f_hat
	Fourier coefficients.

fftwl_complex *	f
	Samples.

void(*	mv_trafo )(void *)
	Transform.

void(*	mv_adjoint )(void *)
	Adjoint transform.

int	N
	the bandwidth

long double *	x
	the nodes $\mathbf{x}(m) = \left(x_1,x_2\right) \in [-\frac{1}{2},\frac{1}{2}) \times [0,\frac{1}{2}]$ for $m=0,\ldots, M-1$ , $M \in \mathbb{N},$

int	t
	the logarithm of NPT with respect to the basis 2

unsigned int	flags
	the planner flags

nfftl_plan	plan_nfft
	the internal NFFT plan

fftwl_complex *	f_hat_intern
	Internally used pointer to spherical Fourier coefficients.

double	MEASURE_TIME_t [3]
	Measured time for each step if MEASURE_TIME is set.

Detailed Description

data structure for an NFSFT (nonequispaced fast spherical Fourier transform) plan with long double precision

Definition at line 582 of file nfft3.h.

Field Documentation

◆ N_total

NFFT_INT nfsftl_plan::N_total

Total number of Fourier coefficients.

Definition at line 582 of file nfft3.h.

◆ M_total

NFFT_INT nfsftl_plan::M_total

Total number of samples.

Definition at line 582 of file nfft3.h.

◆ f_hat

fftwl_complex* nfsftl_plan::f_hat

Fourier coefficients.

Definition at line 582 of file nfft3.h.

◆ f

fftwl_complex* nfsftl_plan::f

Samples.

Definition at line 582 of file nfft3.h.

◆ mv_trafo

void(* nfsftl_plan::mv_trafo) (void *)

Transform.

Definition at line 582 of file nfft3.h.

◆ mv_adjoint

void(* nfsftl_plan::mv_adjoint) (void *)

Adjoint transform.

Definition at line 582 of file nfft3.h.

◆ N

int nfsftl_plan::N

the bandwidth $N$

Definition at line 582 of file nfft3.h.

◆ x

long double* nfsftl_plan::x

the nodes $\mathbf{x}(m) = \left(x_1,x_2\right) \in [-\frac{1}{2},\frac{1}{2}) \times [0,\frac{1}{2}]$ for $m=0,\ldots, M-1$ , $M \in \mathbb{N},$

Definition at line 582 of file nfft3.h.

◆ t

int nfsftl_plan::t

the logarithm of NPT with respect to the basis 2

Definition at line 582 of file nfft3.h.

◆ flags

unsigned int nfsftl_plan::flags

the planner flags

Definition at line 582 of file nfft3.h.

◆ plan_nfft

nfftl_plan nfsftl_plan::plan_nfft

the internal NFFT plan

Definition at line 582 of file nfft3.h.

◆ f_hat_intern

fftwl_complex* nfsftl_plan::f_hat_intern

Internally used pointer to spherical Fourier coefficients.

Definition at line 582 of file nfft3.h.

◆ MEASURE_TIME_t

double nfsftl_plan::MEASURE_TIME_t[3]

Measured time for each step if MEASURE_TIME is set.

Definition at line 582 of file nfft3.h.

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

nfft3.h