Real time plot

Lawson Hanson lawsonhanson at optusnet.com.au
Fri Oct 5 03:12:52 EDT 2007


Nicholas Bastin wrote:
> On 10/4/07, Jean-Francois Canac <jfcanac at free.fr> wrote:
>> mailman.1493.1191484119.2658.python-list at python.org...
>>> I would draw dots on a suitably sized Tkinter canvas, after drawing a
>>> schematic
>>> of the race track (laborious).
>>>
>>> 20 per second will be no problem, provided the machine is half decent.
>>>
>>> What is the speed at which the com port runs?
>>>
>>> - Hendrik
>>>
>> The com port run at 19.2 kb/s.
>> My pb is more the real time aspect: to see the plot changing in real time
>> than the com aspect as the installation is already running with programs in
>> c++.
>> The PC on which it is running is good enought
>> For me the interest is to migrate all taht on python to be able to make fast
>> changes when it is of interest
> 
> The success of this will have more to do with design than programming
> language.  Any GUI toolkit which allows partial screen updates can be
> made to update at least as fast as your screen refresh rate, even in
> python.
> 
> --
> Nick

If you are using Tkinter (probably a very good choice), just remember
     to make periodic (i.e., once per I/O processing loop) calls to:

     Tkinter.update_idletasks()

which will update the display window, etc.

Regards,

Lawson



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