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squeezer44/runtastic_03_005.py

Last active November 1, 2021 14:32
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runtastic_03_005.py
# ----------------------------
# Calculate delta
# time_delta
## calculate and add column time_delta
gpx_df['time_delta'] = gpx_df['time'].shift(-1)-gpx_df['time']
## translate the time_delta in seconds
gpx_df['time_delta_seconds'] = ((gpx_df['time_delta'].
fillna(pd.Timedelta(seconds=0)).
view('int64')/1000000000))
# calculate and add column altitude_delta
gpx_df['altitude_delta_meters'] = gpx_df['altitude'].shift(-1)-gpx_df['altitude']
# distance_delta
dist_great_circle = [0]
dist_geodesic = [0]
for idx in range(1, len(gpx_points)):
start = gpx_points[idx-1]
stop = gpx_points[idx]
temp_delta_great_circle = distance.great_circle((start.latitude, start.longitude),
(stop.latitude, stop.longitude)).m
temp_delta_geodesic = distance.distance((start.latitude, start.longitude),
(stop.latitude, stop.longitude)).m
dist_great_circle.append(temp_delta_great_circle)
dist_geodesic.append(temp_delta_geodesic)
gpx_df['distance_delta_great-circle_meters'] = dist_great_circle
gpx_df['distance_delta_geodesic_meters'] = dist_geodesic
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