read_x: Read unit cell content (atom and coordinates).
Description
Read unit cell length, space group, atom coordinates and all other
parameters from a coordinate file.
Usage
read_x(filename)
Arguments
filename
A character string. Existing file that includes all structural
information. The file name in general has the form "[prefix]_x.dat".
Value
A named list with the following elements:
a. Real numeric. Unit cell length in angstroms.
SG. SG 2-letters character string. There are only two symmetries
possible when working within 1D crystallography, P1 (no
symmetry) and P-1 (inversion through the origin). SG can be
either "P1" or "P-1".
x0. Vector of real numerics indicating the expanded atomic
positions in the unit cell.
Z. Vector of integers indicating the expanded
atomic numbers for all atoms in the unit cell.
B. Vector of real numerics indicating the expanded
B factors for all atoms in the unit cell.
occ. Vector of real numerics indicating the expanded
occupancies for all atoms in the unit cell.