[mapserver-users] Thankyou Message and a possible bug in the SLD feature (mapserver 5.6.5-2)

[Marco Bagni]

Hi all,

after having received extremely useful support from this community, I wish
to publicly recognize the effort spent by Yewondwossen Assefa in
supporting my request of help.

Thanks to his support I was able to overcome my problem related to the use
of the SLD feature to apply a spatial user-related filter to a coverage.

After his help, I went on with the experiments and I found that, under the
release 5.6.5-2 of mapserver (linux Debian), the spatial filter, applied
to a coverage maintains all the features defined in the map file for the
elements that fall within the BBOX filter (this spatial filter worked fine
as well as the more generic polygonal fence) with the exception of the
LABEL, which was not passed to the selected features.

In other words:

given the calling URL like:

http://bla-bla/cgi-bin/mapserv?map=/bla-bla-bla/maps_2.map&LAYERS=mylayer&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fpng&TRANSPARENT=TRUE&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&STYLES=&SRS=EPSG%3A900913&BBOX=-10018754.17,-10018754.17,0,0&WIDTH=256&HEIGHT=256&SLD=http://localhost/sldfile.xml

and an sldfile.xml containing only the spatial filter like:

<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor version="1.0.0" xmlns="http://www.opengis.net/sld"
xmlns:gml="http://www.opengis.net/gml"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/sld
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
<NamedLayer>
  <Name>mylayer</Name>
  <UserStyle>
  <Title>xxx</Title>
  <FeatureTypeStyle>
  <Rule>
    <ogc:Filter>
        <BBOX>
        <PropertyName>Geometry</PropertyName>
        <gml:Box srsName="http://www.opengis.net/gml/srs/epsg.xml#32632">
        <gml:coordinates>$BBOX_minx,$BBOX_miny
$BBOX_maxx,$BBOX_maxy</gml:coordinates>
        </gml:Box>
        </BBOX>
    </ogc:Filter>
  </Rule>
  </FeatureTypeStyle>
  </UserStyle>
</NamedLayer>
</StyledLayerDescriptor>

where $BBOX_m... are variables replaced by the BBOX coords, then, assuming
that the layer "mylayer" is a polygon layer with a label defined, then the
whole command returns only the polygons that fall within the BBOX
boundaries with all the attributes defined in the map file (like the
filling color or the stroke size and color) but without the LABEL (the
same call without the SLD param returns the whole coverage including the
labels.

Again thank you Yewondwossen and thank you all.

Respectfully.

Marco Bagni