[Geoserver-users] Parameter substitution in the Label element

Sun, 22 Aug 2010 23:23:27 -0700 

I want to use parameter substitution via the env function to specify the label 
field (or possibly even fields) via the env parameter of the GetMap request

I've tried:

<Label>
   <ogc:ParameterName>
      <ogc:Function name="env">
         <ogc:Literal>labelField</ogc:Literal>
      </ogc:Function>
   </ogc:ParameterName>
</Label>

but that results in both validation and rendering errors.

I've also tried:
   - Just the ogc:Function element block inside the Label element
   - string concatenation function to concatenate the ogc:ParameterName tags to 
the results of the env function
   - Passing the entire urlencoded 
<ogc:ParameterName>MYLABELFIELD</ogc:ParameterName> string as the value of the 
env=labelField: parameter
   - Using CQL parameter notation &lt;Label&gt; {  &lt;ogc:Function 
name="env"&gt; ... &lt;/ogc:Function&gt; } &lt;/Label&gt;

None of the above syntaxes worked for me.
Is there a way to do env function based parameter substitution for the Label 
element?

Thanks
Matt Priour
Kestrel Computer Consulting


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