Do not use this fix if you just want a group of atoms to remain -stationary. A much better way to do this is to not include those atoms -in your integration fix (i.e. use "fix 1 mobile nve" instead of "fix 1 -all nve", where "mobile" is the group of atoms that you want to move). +
You should not use this fix if you just want to hold group of atoms +stationary. A better way to do this is to not include those atoms in +your time integration fix. E.g. use "fix 1 mobile nve" instead of +"fix 1 all nve", where "mobile" is the group of atoms that you want to +move.
Related commands:
diff --git a/doc/fix_rigid.txt b/doc/fix_rigid.txt index 0e37e10819..86bdb93720 100644 --- a/doc/fix_rigid.txt +++ b/doc/fix_rigid.txt @@ -90,10 +90,11 @@ 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. -Do not use this fix if you just want a group of atoms to remain -stationary. A much better way to do this is to not include those atoms -in your integration fix (i.e. use "fix 1 mobile nve" instead of "fix 1 -all nve", where "mobile" is the group of atoms that you want to move). +You should not use this fix if you just want to hold group of atoms +stationary. A better way to do this is to not include those atoms in +your time integration fix. E.g. use "fix 1 mobile nve" instead of +"fix 1 all nve", where "mobile" is the group of atoms that you want to +move. [Related commands:]