CircularTrajectoryGenerator class

Generate a circular movement trajectory for a stimulus.

Use this class in conjunction with StimulusAnimator

Methods and properties:

class trajtracker.movement.CircularTrajectoryGenerator(center=None, radius=None, degrees_per_sec=None, full_rotation_duration=None, degrees_at_t0=None, clockwise=True)

__init__(center=None, radius=None, degrees_per_sec=None, full_rotation_duration=None, degrees_at_t0=None, clockwise=True)

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

Parameters:

• center – See center
• radius – See radius
• degrees_per_sec – See degrees_per_sec
• degrees_at_t0 – See degrees_at_t0

get_traj_point(time)

Return the trajectory info at a certain time

Parameters:time – in seconds Returns:a dict with the coordinates (‘x’ and ‘y’ entries).

log_level

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

center

The center of the circle (x,y coordinates)

radius

The radius of the circle

degrees_per_sec

The radial speed of movement (you can also specify the speed as full_rotation_duration)

full_rotation_duration

The radial speed of movement, in seconds (you can also specify the speed as degrees_per_sec)

degrees_at_t0

Position (specified as degrees) where the stimulus should be at time=0

clockwise

Whether the movement is clockwise or counter-clockwise