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#include <nfft3.h>
Data Fields | |
| int | N_total |
| Total number of Fourier \ coefficients. | |
| int | M_total |
| Total number of samples. | |
| double * | f_hat |
| Vector of Fourier coefficients, \ size is N_total float_types. | |
| double * | f |
| Vector of samples, \ size is M_total float types. | |
| int | d |
| dimension, rank | |
| int * | N |
| cut-off-frequencies (kernel) | |
| int * | n |
| length of dct-i | |
| double * | sigma |
| oversampling-factor | |
| int | m |
| cut-off parameter in time-domain | |
| double | nfct_full_psi_eps |
| double * | b |
| shape parameters | |
| unsigned | nfct_flags |
| flags for precomputation, malloc | |
| unsigned | fftw_flags |
| flags for the fftw | |
| double * | x |
| nodes (in time/spatial domain) | |
| double | MEASURE_TIME_t [3] |
| measured time for each step | |
| fftw_plan | my_fftw_r2r_plan |
| internal fftw_plan | |
| fftw_r2r_kind * | r2r_kind |
| r2r transform type (dct-i) | |
| 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 | |
| double * | g |
| double * | g_hat |
| double * | g1 |
| input of fftw | |
| double * | g2 |
| output of fftw | |
| double * | spline_coeffs |
| input for de Boor algorithm, if B_SPLINE or SINC_2m is defined | |
Definition at line 490 of file nfft3.h.