A simple package for representing Bravais lattices. Primarily useful to check the passed parameters represent a valid Bravais lattice. If a lattice parameter is not specified, it will be assigned randomly (such that all lattice parameters remain compatible with the specified lattice system).
pip install bravais
Import the BravaisLattice class:
from bravais import BravaisLatticeQuickly generate a monoclinic Bravais lattice without specifying any lattice parameters:
mon_lat = BravaisLattice('monoclinic')
print(mon_lat)P-centred monoclinic lattice (a=5.9417, b=4.7245, c=5.7335, alpha=90.00, beta=90.00, gamma=51.01)
Generate a body-centred tetragonal Bravais lattice with particular lattice parameters:
tet_lat = BravaisLattice('tetragonal', 'I', a=3)
print(tet_lat)I-centred tetragonal lattice (a=3.0000, b=3.0000, c=3.5708, alpha=90.00, beta=90.00, gamma=90.00)
Note that the following single-digit codes are used to specify centring-types:
P -> primitive
B -> base
I -> body
F -> face
R -> rhombohedral