[Qgis-developer] Render speed
Tim Sutton
tim at linfiniti.com
Wed Jan 9 19:01:38 EST 2008
Hi
I cant remember who I was chatting to on IRC but I was going to
suggest that 0.9.3 we focus our attention on perfrmance only (kind of
like a performance triage!). Its definately an often mentioned
complaint and we should really be striving to get QGIS faster with
each release...particulary once we have all features implemented for
1.0.
Regards
Tim
2008/1/9, Magnus Homann <magnus at homann.se>:
> I did a VERY unscientific test, rendering a 200 x 200 and a 300 x 300
> points shape file in trunk, renderer branch and composer_redesign
> branch. The points were autogenerated from a C-program to a delimited
> text file and then saved as shape file. All branches were compiled with
> debugging off.
>
> Using circles with size around 20, in renderer branch larger.
>
> Result:
>
> branch layer sec
> ----------------------------
> trunk 200x200 4
> trunk 300x300 8
> render 200x200 7
> render 300x300 13
> composer 200x200 16
> composer 300x300 32
>
> The delimited text files (gzipped) for those interested are stored at
> links below. It would be good if anyone could confirm the discrepancies.
>
> http://homann.se/Qgis/del200x200.txt.gz
> http://homann.se/Qgis/del300x300.txt.gz
>
> Magnus
>
>
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--
Tim Sutton
QGIS Project Steering Committee Member - Release Manager
Visit http://qgis.org for a great open source GIS
openModeller Desktop Developer
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Home Page: http://tim.linfiniti.com
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Irc: timlinux on #qgis at freenode.net
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