[lammps-users] orient lattice

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#1

hi all

   my input file is written as follows

lattice bcc 3.509 orient x 1 1 1 orient y 1 -1 0 orient z 1 1 -2
region system prism 0 10 0 10 0 10 0 0 0
create_box 1 system
create_atoms 1 box
mass 1 6.941

run 0

but the output file is

Lattice spacing in x,y,z = 6.07777 4.96248 5.73017

6.07777 = sqrt(3) * 3.509
4.96248 = sqrt(2) * 3.509
5.73017 = sqrt(8/3) * 3.509

the last value seems not correct.
what's wrong with my input files?
thanks

#2

Not sure what you mean by "not correct".
It's just a distance. The
lattice doc page explains how it is calculated
for oriented lattices. If you don't like the
distance it computes you can always change
it via the lattice "spacing" option.

If you think the command is not caculating it
the way the doc page says it is, then let
me know.

Steve