[Qgis-developer] issue in exported SLD for categories symbology

Andrea Aime andrea.aime at geo-solutions.it
Wed Nov 2 06:12:29 PDT 2016

Hi Victor,
that would be a good usage of <ElseFilter/>, which is indeed designed
to match all features not matched by other rules in the same


On Wed, Nov 2, 2016 at 2:09 PM, Victor Olaya <volayaf at gmail.com> wrote:

> Hi
> It seems that there is an issue with SLD exports. When exporting
> categorical symbology in which a default value is defined (for all
> values not matching any of the categories) a rule-based symbology is
> created. However, the default category has no ELSE in it (as it
> should), and the default symbol is applied to all elements, since it
> has no filter, and shadows the rest of the symbology.
> Morever, when a rule-based symbology is defined as rule-based, and the
> ELSE condition is added, it is not exported. The resulting SLD has
> something like this:
> <se:Rule>
>          <se:Name></se:Name>
>          <!--Parser Error: syntax error, unexpected ELSE - Expression
> was: ELSE-->
>          <se:PolygonSymbolizer>
>            <se:Fill>
>              <se:SvgParameter name="fill">#9a5ceb </se:SvgParameter>
>            </se:Fill>
>            <se:Stroke>
>              <se:SvgParameter name="stroke">#000001 </se:SvgParameter>
>              <se:SvgParameter name="stroke-width">1</se:SvgParameter>
>              <se:SvgParameter name="stroke-linejoin">bevel</
> se:SvgParameter>
>            </se:Stroke>
>          </se:PolygonSymbolizer>
>        </se:Rule>
> Is that a known limitation, or is it like that for some reason?
> For the record, the resulting SLD is correctly rendered in GeoServer,
> so maybe there is some issue in how QGIS handles those default
> categories. Opening the exported SLD and using it for a layer in QGIS
> causes all feature to be rendered with the default symbol.
> It might be related to this issue:
> http://hub.qgis.org/issues/15430
> Thanks!
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