[lammps-users] about fix rigid command


In manual we can find that If the atoms in a single rigid body initially straddle a periodic boundary, the input data file must define the image flags for each atom correctly, so that LAMMPS can “unwrap” the atoms into a valid rigid body.

When I do my simulation, I firstly warm up my system, and write a restart file for consequent simulation to read in . I want to know whether the restart file contain the image flags. if it doesn’t contain, HOW can I define the image flags.?

Thanks in advance

The restart file does contain the image flags.