[Qgis-user] Re: AW: [Qgis-developer] "Fix problems with incorectly
tutey at o2.pl
Wed Apr 16 02:48:54 EDT 2008
Maciej Sieczka pisze:
> Hugentobler Marco pisze:
>> I think the thing that brings your performance down is transparency.
>> Editing markers and measuring rubber bands both use transparency (and
>> GRASS edits don't).
>> FPWIPF uses QPixmap to render (and is rendered on
>> the X-server). If FPWIPF is disabled, QImage is used which afaik is
>> pure software rendering.
> So should it be faster or slower with with FPWIPF enabled?
> Currently, with FPWIPF *enabled*, during digitizing rendering is 66
> times worse, whereas outside digitising it is 2-3 times better. This
> seems inconsistent.
Doesn't anybody really know why FPWIPF enabled slows down performance in
digitizing mode but improves it once diigitizing is quit?
If QT version matters, I'm using 4.3.4.
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