Converts a trajectory segment to a node-based trajectory, recomputing traversal times.

segment_to_trajectory.py

def segment_to_trajectory(segment: list[LatLon],
                          dt: float,
                          t0: float) -> Trajectory:
    lat = np.array([point.lat for point in segment])
    lon = np.array([point.lon for point in segment])
    time = np.zeros_like(lat)

    seg_lens = vec_haversine(lat[1:], lon[1:], lat[:-1], lon[:-1])
    avg_speed = np.sum(seg_lens) / dt
    time[0] = t0
    time[1:] = np.cumsum(seg_lens / avg_speed * 1000.0) + t0
    return Trajectory(lat=lat, lon=lon, time=time)