Hi Matthias,
I had a similar problem a couple of weeks back. While I was unable to identify
why my first attempt was failing I was able to produce a functioning
implementation on the second attempt.
I posted my problem (and later a working solution) over here. [1]
Another gotcha to be aware of is that any python errors that occur in the other
thread will be displayed in the Message Log, I find it useful to have this as a
floating window during development.
[1]
http://gis.stackexchange.com/questions/45514/how-do-i-maintain-a-resposive-gui-using-qthread-with-pyqgis
Good Luck,Kelly Thomas
> Date: Tue, 22 Jan 2013 10:33:16 +0100
> From: kaot...@gmx.de
> Hello,
> I try to write a plugin in python. The plugin will be part of a complex
> plugin and will make a longer running numpy> calculation. I want the GUI to
> be responsive during the calculation. As a basis I used Aaron >
> Racicots(http://svn.reprojected.com/qgisplugins/trunk/threading_demo/)
> threading example and modified the run code (the > calculation is only an
> example). Unfortunately it does not what I want it to do...it hangs during
> calculation. Did I missed a >thing?
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