Timer
end · seconds · start

# Timer¶

class Timer
Syntax:
timer = h.Timer(python_func)
Description:
Execute a Python function at the end of each interval specified by timer.seconds(interval). The timer must be started and can be stopped. A Timer is used to implement the NEURON Main Menu ‣ Tools ‣ MovieRun in nrn/lib/hoc/movierun.hoc

Warning

This code must be run with nrniv -python and not directly via python. The better solution is to use Python’s threading module which works regardless of how NEURON is launched.

Example:

from neuron import h

def foo():
print 'Hello'

timer = h.Timer(foo)
timer.seconds(1)
timer.start()
# type timer.end() to end timer


Timer.seconds()
Syntax:

interval = timer.seconds()

interval = timer.seconds(interval)

Description:
Specify the timer interval. Timer resolution is system dependent but is probably around 10 ms. The time it takes to execute the Python function is part of the interval.

Timer.start()
Syntax:
timer.start()
Description:
Start the timer. The Python function will be called at the end of each interval defined by the argument to timer.seconds(interval).

Timer.end()
Syntax:
timer.end()
Description:
Stop calling the Python function. At least on Linux, this will prevent the calling of the function at the end of the current interval.