Hi Giovanni,
I have found the reason why QGIS Server 2.18 and probably 3 are slower
than 2.14 in generating GeoJSON.
I'll fix it.
Regards,
René-Luc
Le 09/03/2018 à 17:43, Régis Haubourg a écrit :
Hi Giovanni,
GetFeatures can output GML with a different format.
What is sure is that GeoJSON spec doesn't leave any choice, unless we
go for a proprietary output format allowing another SRS.
I'll keep that in mind when testing OGC compliancy for WFS. We are
working on that currently to evaluate how much work is needed to reach
a certification for WFS.
Regards
Régis
2018-03-09 14:34 GMT+01:00 Giovanni Manghi <giovanni.man...@gmail.com
<mailto:giovanni.man...@gmail.com>>:
Hi René-Luc,
> Le 01/03/2018 à 12:52, Giovanni Manghi a écrit :
>> Hi all,
>> now that 2.18 is LTR I guess that many have also updated their QGIS
>> Server installation to this release. Problem is that I see a few
>> issues in 2.18 and would like to have gsome feedback from others.
>>
>> *) slower: it seems this version is slower compared to 2.14, at
least
>> for some specific request like WFS GetFeatures. See for example:
>>
>> https://issues.qgis.org/issues/18249#note-1
<https://issues.qgis.org/issues/18249#note-1>
>>
>> where in the same condition (same server, same postgis
datasource of
>> around ~25000 polygons) 2.18 is about 30 seconds slower than 2.14.
>
> This issue is simply due to the transformation of the geometry
from the
> layer CRS to the GeoJSON CRS standard: EPSG:4326
ok thanks, but one doubt: I guess that this change (compared to 2.14)
was to make qgis server more compliant and this also means that we
need to accept that for such requests will be always slower than it
was before? sorry for the dumb question as I'm not much into the ogc
internals.
cheers
-- G --
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