lattice-read_data help

Hi users,

I wonder if we can use lattice command with read_data? I specify the atoms within a specific region with my own code in data file but for another region in this simulation volume, I want to build a crystal structure. If I arrange my regions’ dimensions consistent both in data file and lattice command(i.e a empty sphere region in a box within data file,no atoms are assigned in this spacing, with radius a, so command in script is: lattice fcc a) is it possible to construct the geometry so? I hope I could explain my problem well, thank you all in advance…

King regards

Tolga AKINER, BSc.

Bogazici University

Mechanical Engineering Department