msspec_python3/doc/source/spectroscopies/ped/MgO.py

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# coding: utf8
from ase.build import bulk
from msspec.utils import *
a = 4.21 # The lattice parameter
epsilon = 0.01 # a small usefull value
MgO = bulk('MgO', a=a, crystalstructure='rocksalt', cubic=True) # ASE magic here
# shaping the cluster in half sphere
MgO = MgO.repeat((10, 10, 10))
center_cluster(MgO)
MgO = cut_plane(MgO, z=epsilon)
MgO = cut_sphere(MgO, radius=3.*a + epsilon)
print len(MgO)
raise
from ase.io import write
MgO.rotate(-65, 'x')
for a in range(0, 360, 5):
write('img_{:03d}.pov'.format(a), MgO, camera_type='perspective', display=False, rotation='{:d}y'.format(a),
transparent=True)