def get_point_group(rotations):
"""
Get point group from a set of rotations.
Returns:
(pointgroup_symbol, pointgroup_number, transformation_matrix)
symbol and number are those used in international table.
The symbols are mapped to the numbers as follows:
1 "1 "
2 "-1 "
3 "2 "
4 "m "
5 "2/m "
6 "222 "
7 "mm2 "
8 "mmm "
9 "4 "
10 "-4 "
11 "4/m "
12 "422 "
13 "4mm "
14 "-42m "
15 "4/mmm"
16 "3 "
17 "-3 "
18 "32 "
19 "3m "
20 "-3m "
21 "6 "
22 "-6 "
23 "6/m "
24 "622 "
25 "6mm "
26 "-62m "
27 "6/mmm"
28 "23 "
29 "m-3 "
30 "432 "
31 "-43m "
32 "m-3m "
"""
# Convert to Python int compatible
rotations = np.int_(rotations)
return spg.pointgroup(rotations)
def get_point_group(rotations):
"""
Get point group from a set of rotations.
Returns:
(pointgroup_symbol, pointgroup_number, transformation_matrix)
symbol and number are those used in international table.
The symbols are mapped to the numbers as follows:
1 "1 "
2 "-1 "
3 "2 "
4 "m "
5 "2/m "
6 "222 "
7 "mm2 "
8 "mmm "
9 "4 "
10 "-4 "
11 "4/m "
12 "422 "
13 "4mm "
14 "-42m "
15 "4/mmm"
16 "3 "
17 "-3 "
18 "32 "
19 "3m "
20 "-3m "
21 "6 "
22 "-6 "
23 "6/m "
24 "622 "
25 "6mm "
26 "-62m "
27 "6/mmm"
28 "23 "
29 "m-3 "
30 "432 "
31 "-43m "
32 "m-3m "
"""
return spg.pointgroup(np.array(rotations, dtype='intc', order='C'))
def get_point_group(rotations):
"""
Return point group in international table symbol and number.
The symbols are mapped to the numbers as follows:
1 "1 "
2 "-1 "
3 "2 "
4 "m "
5 "2/m "
6 "222 "
7 "mm2 "
8 "mmm "
9 "4 "
10 "-4 "
11 "4/m "
12 "422 "
13 "4mm "
14 "-42m "
15 "4/mmm"
16 "3 "
17 "-3 "
18 "32 "
19 "3m "
20 "-3m "
21 "6 "
22 "-6 "
23 "6/m "
24 "622 "
25 "6mm "
26 "-62m "
27 "6/mmm"
28 "23 "
29 "m-3 "
30 "432 "
31 "-43m "
32 "m-3m "
"""
if rotations.dtype == "float64":
rotations = np.int_(rotations)
# (symbol, pointgroup_number, transformation_matrix)
return spg.pointgroup(rotations)
def get_point_group(rotations):
"""
Return point group in international table symbol and number.
The symbols are mapped to the numbers as follows:
1 "1 "
2 "-1 "
3 "2 "
4 "m "
5 "2/m "
6 "222 "
7 "mm2 "
8 "mmm "
9 "4 "
10 "-4 "
11 "4/m "
12 "422 "
13 "4mm "
14 "-42m "
15 "4/mmm"
16 "3 "
17 "-3 "
18 "32 "
19 "3m "
20 "-3m "
21 "6 "
22 "-6 "
23 "6/m "
24 "622 "
25 "6mm "
26 "-62m "
27 "6/mmm"
28 "23 "
29 "m-3 "
30 "432 "
31 "-43m "
32 "m-3m "
"""
if rotations.dtype == "float64":
rotations = np.int_(rotations)
# (symbol, pointgroup_number, transformation_matrix)
return spg.pointgroup(rotations)
