[MapServer-users] SLD styling : how to advertise for WMS/STYLE parameter

[Philippe Ghesquiere via MapServer-users]

Hi all,

In our WMS server, I would like to advertise two different styles :

   - 1st style based on mapfile definition : 'default'
   - 2nd style based on SLD definition : 'sldStyle'


I would like to offer clients a way to  select which style they want to
apply, using the WMS "STYLE" parameter :
http://localhost/qgisserverxxx?SERVICE=WMS&REQUEST=GetMap&STYLE=sldStyle

I have tried to use CLASSGROUP, NAME and GROUP keywords. My main file looks
like :
LAYER
   ...
   CLASSGROUP "MyVectors"
   ...
   # Mapfile definition
   CLASS
      NAME 'Name1'
      GROUP 'default'

      STYLE
         ...
      END
      LABEL
         ...
      END
   END # CLASS

   #SLD definition
   STYLEITEM "sld://SldDefinition.sld
END

My question is :
How do I declare different styling groups within SLD definition ? The CLASS
/ NAME keyword is not appropriate.

In the Mapserver documentation, I found two SLD keywords which could give a
style name :

   - <NamedLayer>/<NamedStyle>/<Name>
   - <NamedLayer>/<UserStyle>/<se:Name>

Which one should I use ?

<StyledLayerDescriptor version="1.1.0" ...>
   <NamedLayer>
      <se:Name>landsat</se:Name>
      <NamedStyle>
         <Name>sldStyle</Name> <====== this one ?
      </NamedStyle>
      <UserStyle>
         <se:Name>sldStyle</se:Name> <==== or this one ?
         <se:FeatureTypeStyle>
            ...
         </se:FeatureTypeStyle>
      </UserStyle>
   </NamedLayer>
</StyledLayerDescriptor>

Thanks for your help
Philippe
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