get_sample_fundamental#

orix.sampling.get_sample_fundamental(resolution: int | float = 2, point_group: Symmetry | None = None, space_group: int | None = None, method: str = 'cubochoric', **kwargs) → Rotation[source]#

Return an equispaced grid of rotations within a fundamental zone.

Parameters:

resolution: The characteristic distance between a rotation and its neighbour in degrees. Default is 2 degrees.
point_group: One of the 11 proper point groups. If not given, space_group must be.
space_group: Between 1 and 231. Must be given if point_group is not.
method: "cubochoric" (default), "haar_euler" or "quaternion". See uniform_SO3_sample() for details.
**kwargs: Keyword arguments passed on to the sampling method.

Returns:

rot: Grid of rotations lying within the specified fundamental zone.

See also

orix.sampling.uniform_SO3_sample

Examples

>>> from orix.quaternion.symmetry import Oh
>>> from orix.sampling import get_sample_fundamental
>>> rot = get_sample_fundamental(5, point_group=Oh)
>>> rot
Rotation (6579,)
[[ 0.877  -0.2774 -0.2774 -0.2774]
 [ 0.877  -0.2884 -0.2884 -0.2538]
 [ 0.877  -0.2986 -0.2986 -0.2291]
 ...
 [ 0.877   0.2986  0.2986  0.2291]
 [ 0.877   0.2884  0.2884  0.2538]
 [ 0.877   0.2774  0.2774  0.2774]]