Hello I work by code espresso, and i want only at two direction of x and z added to my bulk by the code espresso. at dimension of (z) not add to by this code. please guid me. thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.quantum-espresso.org/pipermail/users/attachments/20120228/9e280c28/attachment.html>