Look at sample centring information in bulk movement in detector position in refinement from i19.screen

[graeme-winter]

i.e. refine with scan varying orientation, residual variation (bulk) indicates sample alignment imperfections.

[benjaminhwilliams]

@graeme-winter Bump.

[graeme-winter]

Grey-Area process-i03-ins-metrology :) $ dials_research.recentre refined.refl refined.expt
Move by 2.22 µm at -118.6

Thanks @benjaminhwilliams for the numpy FFT ptrs

Need to do some proper testing for this now & also cope with the case where we have e.g. 180° of data