[Geoserver-users] SLD and external graphic

[Katrin Saul]

Hi,

I've a problem with external graphic.

If I try  to get external graphic dynamically - the field 'geomname' 
holds the name of svg (first example)

<ExternalGraphic>
<OnlineResource xlink:type="simple" 
xlink:href="http://localhost:8080/geoserver/www/styles/${strToLowerCase(geomname)}"/>
<Format>image/svg+xml</Format>
</ExternalGraphic>

and  part of name in this example :

<ExternalGraphic>
<OnlineResource xlink:type="simple" 
xlink:href="http://localhost:8080/geoserver/www/styles/${strToLowerCase(geomname)}.svg"/>
<Format>image/svg+xml</Format>
</ExternalGraphic>

Both these give errors like this:
            08 Okt 13:39:33 ERROR [lite.StyledShapePainter] - 
ShapePainter has been asked to  paint a null style!!

and there is no elements on my map.

This one  works:

<ExternalGraphic>
<OnlineResource xlink:type="simple" 
xlink:href="http://localhost:8080/geoserver/www/styles/HEIN.svg"/>
<Format>image/svg+xml</Format>
</ExternalGraphic>


But I really need to get these symbols dynamically from database.
Why I don't get the style defined? What is the problem? To my eye it is 
quite the same as in example:

<ExternalGraphic>
<OnlineResource xlink:type="simple"
xlink:href="http://www.usautoparts.net/tn_${strToLowerCase(STATE_ABBR)}.jpg" 
/>
<Format>image/jpeg</Format>
</ExternalGraphic>

I use PostgreSQL8.4  and GeoServer 2.1-beta1.

Regards,

Katrin
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