On Tue, Jun 9, 2009 at 6:17 PM, Steve Nicholes
<emailaddress_...@yahoo.com>wrote:
> Hi,
>
> I am writing some code for automated testing via GPIB using MPL and PyQt.
> To simulate automated data collection while debugging the program, I have
> added a for loop (see below) after reading in a data file that plots each
> point one by one. When I run the program in Linux, I see each point appear
> on the canvas one by one as designed, but when I run the same code in
> Windows, nothing shows up on the canvas during the for loop. Instead, once
> the loop has completed, all points appear simulataneously. Is there any
> reason the why calls to canvas.draw() show nothing when run in Windows?
I have seen similar discrepancies between PyQt4 behavior on linux and
windows in a few situations. In my experience, a call to
PyQt4.QtGui.qApp.processEvents() is sufficient to force an update in your
view.
Darren
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