SpeedMonitor class¶

Monitor the mouse/finger instantaneous speed

Methods and properties:¶

class trajtracker.movement.SpeedMonitor(calculation_interval)¶

__init__(calculation_interval)¶

Constructor - invoked when you create a new object by writing SpeedMonitor()

Parameters:	calculation_interval – See `calculation_interval`

calculation_interval¶: The time interval (in seconds) over which calculations are performed. Use shorter time period if available

last_calculation_interval¶: The time interval (sec) used for the last calculation of speed & direction

log_level¶: Logging level of this object: trajtracker.log_none, log_error (default), log_warn, log_info, log_debug, log_trace

reset(time=None)¶

Called when a trial starts - reset any previous movement

Parameters:	time – The time when the trial starts.

stopped_duration¶: If the finger is stopped, this tells you for how long it’s been so. If the finger is moving, or didn’t start moving yet, this will return 0.

update_xyt(position, time_in_trial, time_in_session=None)¶

Call this method whenever the finger/mouse moves

Parameters:	time_in_trial – use the same time scale provided to reset() time_in_session – ignored

xyspeed¶: The instantaneous speed (coords/sec) - for this calculation we consider the full distance traveled by the mouse/finger