🏝️Distance from Shore

To perform particular tasks, sometimes the distance of a vessel from the nearest shore is needed. We provide an example to calculate the distance in kilometers from shore for a given point.

y1, x1 = 48.271185186388735, -61.10595523571155

# creating a sample track
tracks_short = [
        dict(
            lon=np.array([x1]),
            lat=np.array([y1]),
            time=[0],
            dynamic=set(['time']),
        )
]

with ShoreDist(data_dir="./testdata/") as sdist:
        # getting distance from shore for each point in the track
        for track in sdist.get_distance(tracks_short):
            assert 'km_from_shore' in track.keys()
            assert 'km_from_shore' in track['dynamic']
            print(track['km_from_shore'])