[lammps-users] What it the default oritentation of HCP lattice

Hi, I used ‘lattice hcp’ command to build a supercell.

The output is an orthogonal box, then what is the direction of X and Y axis in this case.

The lattice doc page gives you the a1,a2,a3 vecs
for hcp. It's still an orthogonal cell, just not cubic.