def prediction_error(self,
predictions,
ground_truth = None,
beam_search = True,
resample_and_interpolation = True):
if beam_search:
best_seq_idx = self._best_sequence_idx(self.pred_logprobs)
predictions = predictions[best_seq_idx, ] # shape of [n_seq, n_time, 6|--> lat lon alt cumT latspd lonspd]
if resample_and_interpolation:
ground_truth = self._resample_interpolate_ground_truth() # list of arrays with shape of [n_time, 3]
avg_horizontal_err = []
avg_vertical_err = []
all_horizontal_err = []
all_vertical_err = []
for i in range(len(ground_truth)):
n_pnt = min(ground_truth[i].shape[0], predictions[i].shape[0] - self.n_feed)
# print(n_pnt)
_, _, dist = g.inv(ground_truth[i][:n_pnt, 1], ground_truth[i][:n_pnt, 0], predictions[i][self.n_feed:self.n_feed+n_pnt, 1], predictions[i][self.n_feed:self.n_feed+n_pnt, 0])
alt_dist = ground_truth[i][:n_pnt, 2] - predictions[i][self.n_feed:self.n_feed+n_pnt, 2]
avg_horizontal_err.append(np.sqrt(np.mean((dist/1852)**2))) # in nmi
avg_vertical_err.append(np.sqrt(np.mean(alt_dist**2)))
all_horizontal_err += list(dist/1852)
all_vertical_err += list(alt_dist)
return np.array(avg_horizontal_err), np.array(avg_vertical_err), np.array(all_horizontal_err), np.array(all_vertical_err)
def __init__(
self,
train_track_mean,
train_track_std,
train_fp_mean,
train_fp_std,
feature_cubes_mean,
feature_cubes_std,
ncwf_data_rootdir='../../DATA/NCWF/gridded_storm_hourly/',
test_track_dir='../../DATA/DeepTP/test_flight_tracks.csv',
test_fp_dir='../../DATA/DeepTP/test_flight_plans.csv',
flight_plan_util_dir='../../DATA/DeepTP/test_flight_plans_util.CSV',
wind_data_rootdir='../../DATA/filtered_weather_data/namanl_small_npz/',
grbs_common_info_dir='/media/storage/DATA/filtered_weather_data/grbs_common_info.npz',
grbs_lvl_dict_dir='/media/storage/DATA/filtered_weather_data/grbs_level_common_info.pkl',
grbs_smallgrid_kdtree_dir='/media/storage/DATA/filtered_weather_data/grbs_smallgrid_kdtree.pkl',
ncwf_arr_dir='../../DATA/NCWF/gridded_storm.npz',
ncwf_alt_dict_dir='../../DATA/NCWF/alt_dict.pkl',
large_load=False,
weather_feature=True,
**kwargs):
self.train_track_mean = train_track_mean
self.train_track_std = train_track_std
self.train_fp_mean = train_fp_mean
self.train_fp_std = train_fp_std
self.train_feature_cubes_mean = feature_cubes_mean
self.train_feature_cubes_std = feature_cubes_std
self.ncwf_data_rootdir = ncwf_data_rootdir
self.large_load = large_load
self.weather_feature = weather_feature
self.dep_lat = kwargs.get('dep_lat', 29.98333333)
self.dep_lon = kwargs.get('dep_lon', -95.33333333)
self.arr_lat = kwargs.get('arr_lat', 42.3666666667)
self.arr_lon = kwargs.get('arr_lon', -70.9666666667)
self.direct_course = kwargs.get(
'direct_course',
g.inv(self.dep_lon, self.dep_lat, self.arr_lon, self.arr_lat)[0] *
np.pi / 180)
super().__init__(flight_track_dir=test_track_dir,
flight_plan_dir=test_fp_dir,
flight_plan_util_dir=flight_plan_util_dir,
wind_data_rootdir=wind_data_rootdir,
grbs_common_info_dir=grbs_common_info_dir,
grbs_lvl_dict_dir=grbs_lvl_dict_dir,
grbs_smallgrid_kdtree_dir=grbs_smallgrid_kdtree_dir,
ncwf_arr_dir=ncwf_arr_dir,
ncwf_alt_dict_dir=ncwf_alt_dict_dir,
load_ncwf_arr=False,
downsample=False)
def generate_predicted_pnt_feature_cube(self,
predicted_final_track,
known_flight_deptime,
shift_xleft=0,
shift_xright=2,
shift_yup=1,
shift_ydown=1,
nx=20,
ny=20):
"""
predicted_final_track has the shape of [n_seq * n_mixture^i, n_time + t, n_input].
The last axis coresponds to [Lat, Lon, Alt, cumDT, Speed, course]
known_flight_deptime is a np array that contains
FID, Elap_Time (depature time)
wind_file_info is a dictionary of file time tree (kdtree) and an array of time objects
"""
predicted_final_track = self.unnormalize_flight_tracks(
predicted_final_track[:, -2:, :])
# print(predicted_final_track[0, -1, :4])
azimuth_arr = g.inv(predicted_final_track[:, -2, 1],
predicted_final_track[:, -2, 0],
predicted_final_track[:, -1, 1],
predicted_final_track[:, -1, 0])[0]
# Step 0: construct tmp matching dataframe that contains:
# elap_time_diff, azimuth, levels, wx_alt, wind_fname, wx_fname
predicted_matched_info = np.empty((predicted_final_track.shape[0], 13))
predicted_matched_info = pd.DataFrame(
predicted_matched_info,
columns=[
'FID', 'Lat', 'Lon', 'Alt', 'cumDT', 'Lat_spd', 'Lon_spd',
'Elap_Time_Diff', 'azimuth', 'levels', 'wx_alt', 'wind_fname',
'wx_fname'
])
predicted_matched_info.loc[:, [
'Lat', 'Lon', 'Alt', 'cumDT', 'Lat_spd', 'Lon_spd'
]] = predicted_final_track[:, -1, :]
predicted_matched_info.loc[:, 'azimuth'] = azimuth_arr * np.pi / 180
# Step 1: map cumDT to Elaps_time
known_flight_deptime_diff = (known_flight_deptime[:, 1] -
baseline_time)
known_flight_deptime_diff = np.array(
[item.total_seconds() for item in known_flight_deptime_diff])
multiplier = predicted_matched_info.shape[
0] // known_flight_deptime_diff.shape[0]
deptime = np.repeat(known_flight_deptime_diff,
repeats=multiplier,
axis=0)
FIDs = np.repeat(known_flight_deptime[:, 0],
repeats=multiplier,
axis=0)
elap_time_diff = predicted_matched_info.loc[:,
'cumDT'].values + deptime
predicted_matched_info.loc[:, 'Elap_Time_Diff'] = elap_time_diff
predicted_matched_info.loc[:, 'FID'] = FIDs
# Step 2: Map Elaps_time with wx_fname and wind_fname
# match with wind/ temperature fname
wind_query_dist, wind_query_idx = self.wind_ftime_tree.query(
elap_time_diff.reshape(-1, 1), p=1, distance_upper_bound=3600 * 3)
wind_valid_query = wind_query_dist < self.wind_time_objs.shape[
0] # binary array
predicted_matched_info.loc[wind_valid_query,
'wind_fname'] = self.wind_time_objs[
wind_query_idx[wind_valid_query], 0]
predicted_matched_info.loc[~wind_valid_query, 'wind_fname'] = np.nan
# match with ncwf idx
wx_query_dist, wx_query_idx = self.wx_ftime_tree.query(
elap_time_diff.reshape(-1, 1), p=1, distance_upper_bound=3600)
wx_valid_query = wx_query_dist < self.wx_fname_hourly.shape[
0] # binary array
predicted_matched_info.loc[wx_valid_query,
'wx_fname'] = self.wx_fname_hourly[
wx_query_idx[wx_valid_query]]
predicted_matched_info.loc[~wx_valid_query, 'wx_fname'] = np.nan
# Step 3: calculate wind_levels & ncwf_levels
predicted_matched_info.loc[:, 'levels'] = predicted_matched_info[
'Alt'].apply(lambda x: proxilvl(x * 100, self.lvls_dict))
predicted_matched_info.loc[:, 'wx_alt'] = predicted_matched_info[
'Alt'] // 10
# Step 4: generate feature cube
feature_cubes, feature_grid, _ = self.feature_arr_generator(
flight_tracks=predicted_matched_info,
shift_xleft=shift_xleft,
shift_xright=shift_xright,
shift_yup=shift_yup,
shift_ydown=shift_ydown,
nx=nx,
ny=ny)
# feature_grid = feature_grid - np.array([self.dep_lon, self.dep_lat])
# feature_grid = feature_grid.reshape(-1, 20, 20, 2)
# feature_cubes = np.concatenate((feature_cubes, feature_grid), axis = -1)
feature_cubes = self.normalize_feature_cubes(feature_cubes)
feature_cubes = feature_cubes.reshape(-1, 1, nx, ny, 4)
return feature_cubes, feature_grid, predicted_matched_info
def __init__(self,
actual_track_datapath,
flight_plan_datapath,
flight_plan_utilize_datapath,
feature_cubes_datapath,
shuffle_or_not=True,
split=True,
batch_size=128,
**kwargs):
print("State variables as in [Lat, lon, alt, cumDT, lat_spd, lon_spd]")
self.actual_track_datapath = actual_track_datapath
self.flight_plan_datapath = flight_plan_datapath
self.flight_plan_utilize_datapath = flight_plan_utilize_datapath
self.feature_cubes_datapath = feature_cubes_datapath
self.shuffle_or_not = shuffle_or_not
self.split = split
self.batch_size = batch_size
self.dep_lat = kwargs.get('dep_lat', 29.98333333)
self.dep_lon = kwargs.get('dep_lon', -95.33333333)
self.arr_lat = kwargs.get('arr_lat', 42.3666666667)
self.arr_lon = kwargs.get('arr_lon', -70.9666666667)
self.time_dim = kwargs.get('time_dim', False)
self.direct_course = kwargs.get(
'direct_course',
g.inv(self.dep_lon, self.dep_lat, self.arr_lon, self.arr_lat)[0] *
np.pi / 180)
self.idx = kwargs.get('idx', 0)
self.all_tracks, \
self.all_targets, \
self.all_targets_end, \
self.all_targets_end_neg, \
self.all_seq_lens, \
self.data_mean, \
self.data_std, \
self.all_FP_tracks, \
self.all_seq_lens_FP, \
self.FP_mean, \
self.FP_std, \
self.tracks_time_id_info = self.load_track_data()
self.feature_cubes, self.feature_cubes_mean, self.feature_cubes_std = self.load_feature_cubes(
)
self.feature_cubes = np.split(self.feature_cubes,
np.cumsum(self.all_seq_lens))[:-1]
if self.shuffle_or_not:
self.all_tracks, \
self.all_targets,\
self.all_targets_end,\
self.all_targets_end_neg,\
self.all_seq_lens, \
self.all_FP_tracks, \
self.all_seq_lens_FP, \
self.feature_cubes,\
self.tracks_time_id_info = shuffle(self.all_tracks,
self.all_targets,
self.all_targets_end,
self.all_targets_end_neg,
self.all_seq_lens,
self.all_FP_tracks,
self.all_seq_lens_FP,
self.feature_cubes,
self.tracks_time_id_info,
random_state = 101)
if self.split:
self.train_tracks, \
self.dev_tracks, \
self.train_targets, \
self.dev_targets, \
self.train_targets_end, \
self.dev_targets_end, \
self.train_targets_end_neg, \
self.dev_targets_end_neg, \
self.train_seq_lens, \
self.dev_seq_lens, \
self.train_FP_tracks, \
self.dev_FP_tracks, \
self.train_seq_lens_FP, \
self.dev_seq_lens_FP, \
self.train_feature_cubes, \
self.dev_feature_cubes, \
self.train_tracks_time_id_info, \
self.dev_tracks_time_id_info = train_test_split(self.all_tracks,
self.all_targets,
self.all_targets_end,
self.all_targets_end_neg,
self.all_seq_lens,
self.all_FP_tracks,
self.all_seq_lens_FP,
self.feature_cubes,
self.tracks_time_id_info,
random_state = 101,
train_size = 0.8,
test_size = None)
self.train_tracks = _pad(self.train_tracks, self.train_seq_lens)
self.train_targets = _pad(self.train_targets, self.train_seq_lens)
self.train_targets_end = _pad(self.train_targets_end,
self.train_seq_lens)
self.train_targets_end_neg = _pad(self.train_targets_end_neg,
self.train_seq_lens)
self.train_feature_cubes = _pad(self.train_feature_cubes,
self.train_seq_lens)
self.n_train_data_set = self.train_tracks.shape[0]
def ellipse(self, x0, y0, a, b, n, ax=None, **kwargs):
"""
Draws a polygon centered at ``x0, y0``. The polygon approximates an
ellipse on the surface of the Earth with semi-major-axis ``a`` and
semi-minor axis ``b`` degrees longitude and latitude, made up of
``n`` vertices.
For a description of the properties of ellipsis, please refer to [1].
The polygon is based upon code written do plot Tissot's indicatrix
found on the matplotlib mailing list at [2].
Extra keyword ``ax`` can be used to override the default axis instance.
Other \**kwargs passed on to matplotlib.patches.Polygon
RETURNS
poly : a maptplotlib.patches.Polygon object.
REFERENCES
[1] : http://en.wikipedia.org/wiki/Ellipse
"""
ax = kwargs.pop('ax', None) or self._check_ax()
g = pyproj.Geod(a=self.rmajor, b=self.rminor)
# Gets forward and back azimuths, plus distances between initial
# points (x0, y0)
azf, azb, dist = g.inv([x0, x0], [y0, y0], [x0+a, x0], [y0, y0+b])
tsid = dist[0] * dist[1] # a * b
# Initializes list of segments, calculates \del azimuth, and goes on
# for every vertex
seg = [self(x0+a, y0)]
AZ = np.linspace(azf[0], 360. + azf[0], n)
for i, az in enumerate(AZ):
# Skips segments along equator (Geod can't handle equatorial arcs).
if np.allclose(0., y0) and (np.allclose(90., az) or
np.allclose(270., az)):
continue
# In polar coordinates, with the origin at the center of the
# ellipse and with the angular coordinate ``az`` measured from the
# major axis, the ellipse's equation is [1]:
#
# a * b
# r(az) = ------------------------------------------
# ((b * cos(az))**2 + (a * sin(az))**2)**0.5
#
# Azymuth angle in radial coordinates and corrected for reference
# angle.
azr = 2. * np.pi / 360. * (az + 90.)
A = dist[0] * np.sin(azr)
B = dist[1] * np.cos(azr)
r = tsid / (B**2. + A**2.)**0.5
lon, lat, azb = g.fwd(x0, y0, az, r)
x, y = self(lon, lat)
# Add segment if it is in the map projection region.
if x < 1e20 and y < 1e20:
seg.append((x, y))
poly = Polygon(seg, **kwargs)
ax.add_patch(poly)
# Set axes limits to fit map region.
self.set_axes_limits(ax=ax)
return poly