[Image-SIG] that's enough

[Jack Uretsky]

Hi Chris-
In answer to your question,
this is a simulation.  The "events" are program generated; I'm trying to 
approximate a Poisson process, so the times between event pairs are 
exponentially distributed.
 			Regards,
 				Jack

"Trust me.  I have a lot of experience at this."
 		General Custer's unremembered message to his men,
 		just before leading them into the Little Big Horn Valley




On Mon, 19 Jul 2010, Christopher Barker wrote:

> Jack Uretsky wrote:
>>     I have a sequence of events ocurring in real time.  To each event I 
>> display a corresponing .jpg picture.  The number of events may be in the 
>> hundreds.  There are eight pictures.
>
> where are these "events" coming from?
>
> In any case, one route is to have a main wxPython application. In its OnInit 
> method, start up another thread that runs the code that listens for events.
>
> In that code, when you get an event, call:
>
> wx.CallAfter(some_func_to_update_image)
>
> In some_func_to_update_image()
>
> You, well, update the image in your wxPython code. I think I already posted 
> an example of how to do that.
>
> You put the listening code in a separate thread, so it won't block the 
> wxPython MainLoop -- if all you are doing is displaying these images, that 
> may not be necessary, though you'll have to do something so that the user can 
> at least interact enough with the GUI enough to quit it.
>
> wx.CallAfter() is a way to deal with the fact that wxPython is not thread 
> safe, so you can't make GUI calls directly from another thread.
>
> HTH,
>
> -Chris
>
>
>
>
>
>
> -- 
> Christopher Barker, Ph.D.
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