add_unitcell() does not let unit cell update in trajectories

[fxcoudert]

Load a MD trajectory with time-dependent box size, use nglview.show_mdanalysis. The unit cell draw is that of the first frame, and never updates:

import MDAnalysis as mda
import nglview

u = mda.Universe('NaCl_4x4x4.pdb', 'md_trajectory.dcd')
view = nglview.show_mdanalysis(u)
view.camera = 'orthographic'
view.add_unitcell()
view

Structure files are here: md.zip

[hainm]

hi @fxcoudert

this is a known issue and there is no fix for this yet. I am working on supporting molstar for rendering instead so it might help.