def test_orientations_indexing_assignment(orientations):
"""
Assign a new value to a quaternion of an `Orientation`
via the index-operator `[]`.
"""
orientations[0] = Orientations([0, 0, 0, 1])
orientations[0] = Orientations.from_view_up([0, 0, 1], [1, 0, 0])
orientations[0] = [0, 0, 0, 1]
orientations[:] = [[0, 0, 0, 1], [0, 0, 1, 0], [0, 1, 0, 0]]
with raises(ValueError):
orientations[0] = [0, 0, 3]
with raises(ValueError):
orientations[0] = orientations
def test_orientations_show(views, ups, positions, orientations):
"""
Visualize orientations via `Orientations.show()`
with and without `positions`.
"""
# default orientation
Orientations().show()
# single vectors no position
view = [1, 0, 0]
up = [0, 1, 0]
orientation_single = Orientations.from_view_up(view, up)
orientation_single.show()
# with position
position = Coordinates(0, 1, 0)
orientation_single.show(position)
# multiple vectors no position
orientations.show()
# with matching number of positions
orientations.show(positions)
# select what to show
orientations.show(show_views=False)
orientations.show(show_ups=False)
orientations.show(show_rights=False)
orientations.show(show_views=False, show_ups=False)
orientations.show(show_views=False, show_rights=False)
orientations.show(show_ups=False, show_rights=False)
orientations.show(positions=positions, show_views=False, show_ups=False)
# with positions provided as Coordinates
positions = np.asarray(positions)
positions = Coordinates(positions[:, 0], positions[:, 1], positions[:, 2])
orientations.show(positions)
# with non-matching positions
positions = Coordinates(0, 1, 0)
with raises(ValueError):
orientations.show(positions)
def test_orientations_init():
"""Init `Orientations` without optional parameters."""
orient = Orientations()
assert isinstance(orient, Orientations)