Ptycho fly-scan option
Add a fly-scan option for ptychography, which would:
- interpolate between successive positions and comute incoherent modes collected along the fly-path.
- take into account large jumps (scanning back to the start of the positions) to avoid interpolation there ?
- it would be much better to have a correct back-and-forth scanning pattern without large jumps
- it also requires accurate (interferometry-based) sample positions.