ring_analysis
call ring_analysis( nsmax, nlmax, nmmax, datain, nph, dataout, kphi0 )
| name & dimensionality | kind | in/out | description |
|---|---|---|---|
| nsmax | I4B | IN |
|
| nlmax | I4B | IN | Maximum l of the analysis. |
| nmmax | I4B | IN | Maximum m of the analysis. |
| nph | I4B | IN | The number of points on the ring. |
| datain(0:nph-1) | DP | IN | Function values on the ring. |
| dataout(0:nmmax) | DPC | OUT | Fourier components, replicated to Nmmax. |
| kphi0 | I4B | IN | 0 if the first pixel on the ring is at
|
Returns the periodically extended complex Fourier Transform of datain in dataout. They are returned in the following order: 0 1 2 3 4 5 6 7 6 5 4 3 2 1. The value kphi0=0 specifies that no phase factor needed to be applied, because the ring starts at
.
Version 3.11, 2013-04-24