def test_set_frame_plots_same_colors():
# TODO: Review
op = StaticOrbitPlotter()
op.plot_body_orbit(Jupiter, J2000_TDB)
colors1 = [orb[2] for orb in op.trajectories]
op.set_body_frame(Jupiter)
colors2 = [orb[2] for orb in op.trajectories]
assert colors1 == colors2
def test_redraw_keeps_trajectories():
# See https://github.com/poliastro/poliastro/issues/518
op = StaticOrbitPlotter()
trajectory = churi.sample()
op.plot_body_orbit(Mars, J2000_TDB, label="Mars")
op.plot_trajectory(trajectory, label="67P")
assert len(op.trajectories) == 2
op.set_body_frame(Mars)
assert len(op.trajectories) == 2
def _plot_solar_system_2d(epoch, outer=True, interactive=False):
if interactive:
orbit_plotter = OrbitPlotter2D(
plane=Planes.EARTH_ECLIPTIC
) # type: Union[OrbitPlotter2D, StaticOrbitPlotter]
else:
orbit_plotter = StaticOrbitPlotter(plane=Planes.EARTH_ECLIPTIC)
orbit_plotter.set_body_frame(Earth, epoch)
_plot_bodies(orbit_plotter, outer, epoch)
return orbit_plotter
def test_body_frame_raises_warning_if_time_is_not_tdb_with_proper_time(
recwarn):
from poliastro.warnings import TimeScaleWarning
body = Jupiter
epoch = Time("2017-09-29 07:31:26", scale="utc")
expected_epoch_string = "2017-09-29 07:32:35.182" # epoch.tdb.value
op = StaticOrbitPlotter()
op.set_body_frame(body, epoch)
w = recwarn.pop(TimeScaleWarning)
assert expected_epoch_string in str(w.message)
def test_plot_ephem_different_plane_raises_error():
unused_epochs = Time.now().reshape(-1)
unused_coordinates = CartesianRepresentation(
[(1, 0, 0)] * u.au,
xyz_axis=1,
differentials=CartesianDifferential([(0, 1, 0)] * (u.au / u.day), xyz_axis=1),
)
op = StaticOrbitPlotter(plane=Planes.EARTH_ECLIPTIC)
op.set_attractor(Sun)
op.set_body_frame(Earth)
with pytest.raises(ValueError) as excinfo:
op.plot_ephem(Ephem(unused_epochs, unused_coordinates, Planes.EARTH_EQUATOR))
assert (
"sample the ephemerides using a different plane or create a new plotter"
in excinfo.exconly()
)
def dist_chart(asteroid, date, timespan):
solar_system_ephemeris.set('jpl')
EPOCH = Time(date, scale="tdb")
epochs = time_range(EPOCH - TimeDelta(timespan),
end=EPOCH + TimeDelta(timespan))
epochs_moon = time_range(EPOCH - TimeDelta(15 * u.day),
end=EPOCH + TimeDelta(15 * u.day))
moon = Ephem.from_body(Moon, epochs_moon, attractor=Earth)
aster = Ephem.from_horizons(asteroid, epochs, attractor=Earth)
plotter = StaticOrbitPlotter()
plotter.set_attractor(Earth)
plotter.set_body_frame(Moon)
plotter.plot_ephem(moon, EPOCH, label=Moon)
plotter.plot_ephem(aster, EPOCH, label=asteroid)
return plotter