direction¶
-
sisl.utils.
direction
(d)[source]¶ Return the index coordinate index corresponding to the Cartesian coordinate system.
Parameters: - d: {0, ‘X’, ‘x’, 1, ‘Y’, ‘y’, 2, ‘Z’, ‘z’}
returns the integer that corresponds to the coordinate index. If it is an integer, it is returned as is.
Returns: - int
The index of the Cartesian coordinate system.
Examples
>>> direction(0) 0 >>> direction('Y') 1 >>> direction('z') 2 >>> direction('2') 2 >>> direction(' 2') 2 >>> direction('b') 1