MovingPandas.TrajectoryStopDetector

movingpandas: Implementation of Trajectory classes and functions built on top of GeoPandas

class movingpandas.TrajectoryStopDetector(traj, n_threads=1)

Detects stops in a trajectory. A stop is detected if the movement stays within an area of specified size for at least the specified duration.

__init__(traj, n_threads=1)

Create StopDetector

Parameters:

• traj (Trajectory or TrajectoryCollection)

• n_threads (number of threads to use for computation (default: 1))

get_stop_points(max_diameter, min_duration)

Returns detected stop location points

Parameters:

• max_diameter (float) – Maximum diameter for stop detection

• min_duration (datetime.timedelta) – Minimum stop duration

Returns:

Stop locations as points with start and end time and stop duration in seconds

Return type:

geopandas.GeoDataFrame

Examples

>>> detector = mpd.TrajectoryStopDetector(traj)
>>> stops = detector.get_stop_points(min_duration=timedelta(seconds=60),
                                     max_diameter=100)

get_stop_segments(max_diameter, min_duration)

Returns detected stop trajectory segments

Parameters:

• max_diameter (float) – Maximum diameter for stop detection

• min_duration (datetime.timedelta) – Minimum stop duration

Returns:

Trajectory segments

Return type:

TrajectoryCollection

Examples

>>> detector = mpd.TrajectoryStopDetector(traj)
>>> stops = detector.get_stop_segments(min_duration=timedelta(seconds=60),
                                       max_diameter=100)

get_stop_time_ranges(max_diameter, min_duration)

Returns detected stop start and end times

Parameters:

• max_diameter (float) – Maximum diameter for stop detection

• min_duration (datetime.timedelta) – Minimum stop duration

Returns:

TemporalRanges of detected stops

Return type:

list