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  #1  
Old 12-07-2007, 07:06 AM
JMOwens JMOwens is offline
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Join Date: Jun 2007
Location: Providence, RI
Posts: 34
Timer cycling correctly?

Hi all,
I have a timer running my program at 1/60 second, as indicated below:

def masterLoop(num):
.
[main program here]
.
viz.callback(viz.TIMER_EVENT,masterLoop)
viz.starttimer(0,1/60,viz.FOREVER)

However, when I insert a viz.elapsed() into the callback, it returns values of roughly 0.004. I may be misunderstanding the function, but shouldn't it be returning 0.017, which is 1/60? Sorry if this is a dumb question, but it's really important that this timer is cycling correctly. Thanks for your help!
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  #2  
Old 12-07-2007, 09:35 AM
farshizzo farshizzo is offline
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Join Date: Mar 2003
Posts: 2,849
In Python, the result of dividing two integers will be another integer. Try the following in the interactive interpreter:
Code:
>>> 1/60
0
>>> 1/60.0
0.016666666666666666
>>> 1.0/60
0.016666666666666666
So your code is setting a timer to expire every 0 seconds, which will be every frame. You will need to do the following instead:
Code:
viz.starttimer(0,1/60.0,viz.FOREVER)
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  #3  
Old 12-07-2007, 09:57 AM
JMOwens JMOwens is offline
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Join Date: Jun 2007
Location: Providence, RI
Posts: 34
Oh man, thanks a lot - I knew that, but forgot it in the context of a fraction! Doh. Thanks again.
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