[gmx-users] distance between two groups

[Qasim Pars]

Dear gmx users,

How can I calculate the distance between the central of mass of two groups
( for example: ligand and protein)? As far as I understand gmx mindist does
not do it.

And is that possible to calculate the distance per residue as a function of
time? I would like to calculate the distance between ligand and each
residue as a function of time.

Cheers,

-- 
Qasim Pars