def intermediate_points(self, numpoints=101, connection="greatcircle"):
"""
Compute intermediate points between the waypoints.
See mss_util.path_points() for additional arguments.
Returns lats, lons.
"""
return path_points([wp.lat for wp in self.waypoints],
[wp.lon for wp in self.waypoints],
times=[wp.utc_time for wp in self.waypoints],
numpoints=numpoints,
connection=connection)
def _set_vertical_section_path(self,
vsec_path,
vsec_numpoints=101,
vsec_path_connection='linear'):
"""
"""
logging.debug("computing %i interpolation points, connection: %s",
vsec_numpoints, vsec_path_connection)
self.lats, self.lons = coordinate.path_points(
[_x[0] for _x in vsec_path], [_x[1] for _x in vsec_path],
numpoints=vsec_numpoints,
connection=vsec_path_connection)
self.lats, self.lons = np.asarray(self.lats), np.asarray(self.lons)
self.vsec_path = vsec_path
self.vsec_numpoints = vsec_numpoints
self.vsec_path_connection = vsec_path_connection
def _set_linear_section_path(self,
lsec_path,
lsec_numpoints=101,
lsec_path_connection='linear'):
"""
"""
logging.debug("computing %i interpolation points, connection: %s",
lsec_numpoints, lsec_path_connection)
self.lats, self.lons, self.alts = coordinate.path_points(
[_x[0] for _x in lsec_path], [_x[1] for _x in lsec_path],
alts=[_x[2] for _x in lsec_path],
numpoints=lsec_numpoints,
connection=lsec_path_connection)
self.lats, self.lons, self.alts = [
np.asarray(_x) for _x in (self.lats, self.lons, self.alts)
]
self.lsec_path = lsec_path
self.lsec_numpoints = lsec_numpoints
self.lsec_path_connection = lsec_path_connection
def test_pathpoints():
lats = [0, 10]
lons = [0, 10]
times = [
datetime.datetime(2012, 7, 1, 10, 30),
datetime.datetime(2012, 7, 1, 10, 40)
]
ref = [lats, lons, times]
result = coordinate.path_points(lats,
lons,
100,
times=times,
connection="linear")
assert all(len(_x) == 100 for _x in result)
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]
result = coordinate.path_points(lats,
lons,
100,
times=times,
connection="greatcircle")
assert all(len(_x) == 100 for _x in result)
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]
result = coordinate.path_points(lats,
lons,
200,
times=times,
connection="linear")
assert all(len(_x) == 200 for _x in result)
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]
result = coordinate.path_points(lats,
lons,
200,
times=times,
connection="greatcircle")
assert all(len(_x) == 200 for _x in result)
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]
lats = [0, 10, -20]
lons = [0, 10, 20]
times = [
datetime.datetime(2012, 7, 1, 10, 30),
datetime.datetime(2012, 7, 1, 10, 40),
datetime.datetime(2012, 7, 1, 10, 50)
]
ref = [lats, lons, times]
result = coordinate.path_points(lats,
lons,
100,
times=times,
connection="linear")
assert all([len(_x) == 100 for _x in result])
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]
result = coordinate.path_points(lats,
lons,
100,
times=times,
connection="greatcircle")
assert all(len(_x) == 100 for _x in result)
for i in range(3):
assert pytest.approx(result[i][0]) == ref[i][0]
assert pytest.approx(result[i][-1]) == ref[i][-1]