Hi there,
I am having difficulty in retrieving a legend for a point layer.
Each point is labelled using 2 fields. Both fields are numeric and the
labels were being displayed like 1340.0/23.0 instead of 1340/23.
So I used the numberFormat function
====================================================
<sld:Label>
<ogc:Function name="numberFormat">
<ogc:Literal>#</ogc:Literal>
<ogc:PropertyName>FILM_NO</ogc:PropertyName>
</ogc:Function>
/
<ogc:Function name="numberFormat">
<ogc:Literal>#</ogc:Literal>
<ogc:PropertyName>NEG_NO</ogc:PropertyName>
</ogc:Function>
<sld:Label>
====================================================
Using the Layer Preview option in the GeoServer web interface, I can view
the layer fine and everything is labelled like 1340/23... perfect!
But if I try to retrieve the legend using the request:
http://localhost:8080/geoserver/wms?REQUEST=GetLegendGraphic&VERSION=1.0.0&FORMAT=image/png&WIDTH=20&HEIGHT=20&LAYER=LISTdata:Aerial_Photos&legend_options=forceLabels:on
I get the error:
java.lang.IllegalArgumentException: Filter Function problem for function
strConcat argument #0 - expected type String
Filter Function problem for function strConcat argument #0 - expected type
String
Out of curiosity I tried using just the one function:
====================================================
<sld:Label>
<ogc:Function name="numberFormat">
<ogc:Literal>#</ogc:Literal>
<ogc:PropertyName>FILM_NO</ogc:PropertyName>
</ogc:Function>
<sld:Label>
====================================================
and I got the error:
java.lang.IllegalArgumentException: Cannot format given Object as a Number
Cannot format given Object as a Number
If I remove the numberFormat function all together I can retrieve the
legend fine, but all my labels have ".0" attached to them.
Any ideas or directions to solve this small dilemma will be most
appreciated!
Thanks,
Sonya
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