data structure for an NSFFT (nonequispaced sparse fast Fourier transform) plan with float precision
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#include <nfft3.h>
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| FFTW_MANGLE_FLOAT (plan) *set_fftw_plan1 |
| fftw plan for the nfft blocks
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| FFTW_MANGLE_FLOAT (plan) *set_fftw_plan2 |
| fftw plan for the nfft blocks
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NFFT_INT | N_total |
| Total number of Fourier coefficients.
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NFFT_INT | M_total |
| Total number of samples.
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fftwf_complex * | f_hat |
| Fourier coefficients.
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fftwf_complex * | f |
| Samples.
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void(* | mv_trafo )(void *) |
| Transform.
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void(* | mv_adjoint )(void *) |
| Adjoint transform.
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int | d |
| dimension, rank; d = 2, 3
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int | J |
| problem size, i.e., d=2: N_total=(J+4) 2^(J+1) d=3: N_total=2^J 6(2^((J+1)/2+1)-1)+2^(3(J/2+1))
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int | sigma |
| oversampling-factor
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unsigned | flags |
| flags for precomputation, malloc
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int * | index_sparse_to_full |
| index conversation, overflow for d=3, J=9!
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int | r_act_nfft_plan |
| index of current nfft block
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nfftf_plan * | act_nfft_plan |
| current nfft block
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nfftf_plan * | center_nfft_plan |
| central nfft block
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nfftf_plan * | set_nfft_plan_1d |
| nfft plans for short nffts
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nfftf_plan * | set_nfft_plan_2d |
| nfft plans for short nffts
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float * | x_transposed |
| coordinate exchanged nodes, d = 2
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float * | x_102 |
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float * | x_201 |
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float * | x_120 |
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float * | x_021 |
| coordinate exchanged nodes, d=3
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data structure for an NSFFT (nonequispaced sparse fast Fourier transform) plan with float precision
Definition at line 477 of file nfft3.h.
◆ N_total
NFFT_INT nsfftf_plan::N_total |
Total number of Fourier coefficients.
Definition at line 477 of file nfft3.h.
◆ M_total
NFFT_INT nsfftf_plan::M_total |
Total number of samples.
Definition at line 477 of file nfft3.h.
◆ f_hat
fftwf_complex* nsfftf_plan::f_hat |
Fourier coefficients.
Definition at line 477 of file nfft3.h.
fftwf_complex* nsfftf_plan::f |
◆ mv_trafo
void(* nsfftf_plan::mv_trafo) (void *) |
Transform.
Definition at line 477 of file nfft3.h.
◆ mv_adjoint
void(* nsfftf_plan::mv_adjoint) (void *) |
Adjoint transform.
Definition at line 477 of file nfft3.h.
dimension, rank; d = 2, 3
Definition at line 477 of file nfft3.h.
problem size, i.e., d=2: N_total=(J+4) 2^(J+1) d=3: N_total=2^J 6(2^((J+1)/2+1)-1)+2^(3(J/2+1))
Definition at line 477 of file nfft3.h.
◆ sigma
oversampling-factor
Definition at line 477 of file nfft3.h.
◆ flags
unsigned nsfftf_plan::flags |
flags for precomputation, malloc
Definition at line 477 of file nfft3.h.
◆ index_sparse_to_full
int* nsfftf_plan::index_sparse_to_full |
index conversation, overflow for d=3, J=9!
Definition at line 477 of file nfft3.h.
◆ r_act_nfft_plan
int nsfftf_plan::r_act_nfft_plan |
index of current nfft block
Definition at line 477 of file nfft3.h.
◆ act_nfft_plan
nfftf_plan* nsfftf_plan::act_nfft_plan |
current nfft block
Definition at line 477 of file nfft3.h.
◆ center_nfft_plan
nfftf_plan* nsfftf_plan::center_nfft_plan |
central nfft block
Definition at line 477 of file nfft3.h.
◆ set_nfft_plan_1d
nfftf_plan* nsfftf_plan::set_nfft_plan_1d |
nfft plans for short nffts
Definition at line 477 of file nfft3.h.
◆ set_nfft_plan_2d
nfftf_plan* nsfftf_plan::set_nfft_plan_2d |
nfft plans for short nffts
Definition at line 477 of file nfft3.h.
◆ x_transposed
float* nsfftf_plan::x_transposed |
coordinate exchanged nodes, d = 2
Definition at line 477 of file nfft3.h.
◆ x_102
float* nsfftf_plan::x_102 |
◆ x_201
float * nsfftf_plan::x_201 |
◆ x_120
float * nsfftf_plan::x_120 |
◆ x_021
float * nsfftf_plan::x_021 |
coordinate exchanged nodes, d=3
Definition at line 477 of file nfft3.h.
The documentation for this struct was generated from the following file: