|   | 3.2.3 | 
| Data Fields | |
| int | N_total | 
| Total number of Fourier coefficients. | |
| int | M_total | 
| Total number of samples. | |
| fftw_complex * | f_hat | 
| Vector of Fourier coefficients, size is N_total * sizeof( fftw_complex ) | |
| fftw_complex * | f | 
| Vector of samples, size is M_total * sizeof( fftw_complex ) | |
| void(* | mv_trafo )(void *) | 
| Pointer to the own transform. | |
| void(* | mv_adjoint )(void *) | 
| Pointer to the own adjoint. | |
| int | d | 
| dimension, rank | |
| double * | sigma | 
| oversampling-factor | |
| double * | a | 
| 1 + 2*m/N1 | |
| int * | N | 
| cut-off-frequencies | |
| int * | N1 | 
| sigma*N | |
| int * | aN1 | 
| sigma*a*N | |
| int | m | 
| cut-off parameter in time-domain | |
| double * | b | 
| shape parameters | |
| int | K | 
| number of precomp. | |
| int | aN1_total | 
| aN1_total=aN1[0]* ... | |
| nfft_plan * | direct_plan | 
| plan for the nfft | |
| unsigned | nnfft_flags | 
| flags for precomputation, malloc | |
| int * | n | 
| n=N1, for the window function | |
| double * | x | 
| nodes (in time/spatial domain) | |
| double * | v | 
| nodes (in fourier domain) | |
| double * | c_phi_inv | 
| precomputed data, matrix D | |
| double * | psi | 
| precomputed data, matrix B | |
| int | size_psi | 
| only for thin B | |
| int * | psi_index_g | 
| only for thin B | |
| int * | psi_index_f | 
| only for thin B | |
| fftw_complex * | F | 
| double * | spline_coeffs | 
| input for de Boor algorithm, if B_SPLINE or SINC_2m is defined | |
| int nnfft_plan::K | 
number of precomp.
uniform psi
Definition at line 400 of file nfft3.h.
Referenced by nnfft_precompute_lin_psi().