Re: [Visualpython-users] Stripchart display with curve object?

[Mark <clu...@ya...>]

Jonathan Brandmeyer wrote:
> On Sun, 2006-04-16 at 21:14 +0100, Mark wrote:
>> I am trying to create a realtime stripchart display by using the curve 
>> object. My problem is how to get the display "rolling". I would like to 
>> do this as efficient as possible (avoiding time consuming loops!).  Any 
>> ideas ?
> 
> Your best bet is probably going to involve using slicing.  Maybe
> something like this...
> 
> # expensive inner loop gets done in C
> graphline[:-1] = graphline[1:]
> # new data point tacked on to the end
> graphline[-1] = n_point
> 
> HTH,
> -Jonathan

Thanks for the help. I could get the stripchart rolling by slicing "y", 
otherwise the position of the plotted points would not move:
band.y[:-1] = band.y[1:]

thank Mark

		
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