Hi Richard,
Officially WMS does not have a FILTER parameter but QGIS Server does [0]
[1].
I'm building the query with OpenLayers 6 for the OGC filter part and
hand-made Javascript for the QGIS Server filter part.
One issue I see is QGIS Server filter does not accept keywords found in
OGC Filter (e.g. Intersects...)
I'm working on a local server so I have no public server to share.
I have tested in browser different combinations of filters with no success.
[0] :
https://docs.qgis.org/3.10/en/docs/user_manual/working_with_ogc/server/services.html?highlight=exp_filter#filter
[1] : https://github.com/qgis/QGIS-Enhancement-Proposals/issues/104
Le 08/09/2020 à 09:45, Richard Duivenvoorde a écrit :
Hi Nicolas,
We are talking about WMS here isn't it?
I am not 100% sure but I think that officially WMS does not have FILTER
parameters.
In SOME (combined) OGC-servers you can use them (most notably Geoserver [0]),
but it is not part of the WMS spec, that only has 'simple filters'
So it really depends against which server you are talking (is it public? then
we can try things out).
But IF that server works with WFS/Filter-encoding you should be able to combine
those two filter in ONE, by using an 'And' clause in it.. (also part of the
Filter encoding spec)
Not sure where you create that filter string though in QGIS. Is it created for
you or do you add it as xml somewhere?
At least you could test combining those two in a browser?
HTH, Regards,
Richard Duivenvoorde
[0] https://docs.geoserver.org/latest/en/user/services/wms/vendor.html#filter
[1] https://www.mapserver.org/ogc/filter_encoding.html
On 9/8/20 9:15 AM, Nicolas Boisteault wrote:
Hi all,
I have success using these two filters separately :
* FILTER=layer_point:"label"%20=%20%27deux%27
*
FILTER=<Filter><Intersects><PropertyName>geom</PropertyName><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates%20decimal="."%20cs=","%20ts="%20">40538.991563323885,6204722.933054191%203849.2179915467277,6122782.438743888%20112695.54625448585,6094653.612338859%2040538.991563323885,6204722.933054191</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></Intersects></Filter>
First filter does not accept special characters in second. Second filter is an
OGC filter.
Does someone knows if it is possible to use both filters in the same query ?
Thanks.
--
Nicolas Boisteault
Ingénieur
www.3liz.com <http://www.3liz.com>
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