[Interest] [QGV] Asynchronous painting of millions QGPathItem

Ch'Gans chgans at gna.org
Tue Dec 6 23:47:18 CET 2016


On 6 December 2016 at 22:26, Ulf Hermann <ulf.hermann at qt.io> wrote:
> Hello,
>
> I had a somewhat similar, but not quite the same problem when building the
> timeline view for the QML profiler in Qt Creator. It's currently usable with
> up to about 1 million events in the timeline and you can zoom and scroll it.
> There might be potential for further optimization. I used the Qt Quick
> SceneGraph API to directly work with OpenGL geometry. The scene graph nodes
> are built on demand and then cached and recycled when applicable. You can
> check out the result in the Qt Creator sources in src/libs/timeline.

Thanks for that, will definitely have a look.
QtCreator code base has had strong influence on the main project i
work on. That's the power of OpenSource, you can learn a lot by
studying existing code base!

Chris

>
> br,
> Ulf
>
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/interest



More information about the Interest mailing list