SLD Transformation <ogc:Function name="gs:Contour"> error:

[robertdbuckley]

Hi,

was trying out this great tutorial from opengeo...http://suite.opengeo.org/opengeo-docs/processing/contour/dynamic.html

• 
  

When I tried in my geoserver instance (Version 2.2 / Build-Datum 19-Sep-2012 18:33) I received the following error:

java.lang.RuntimeException: Unable to find function parameter

Unable to find function parameter

<Transformation>
          <ogc:Function name="gs:Contour">
            <ogc:Function name="parameter">
              <ogc:Literal>data</ogc:Literal>
            </ogc:Function>
            <ogc:Function name="parameter">
              <ogc:Literal>interval</ogc:Literal>
              <ogc:Literal>100</ogc:Literal>
            </ogc:Function>
            <ogc:Function name="parameter">
              <ogc:Literal>simplify</ogc:Literal>
              <ogc:Literal>true</ogc:Literal>
            </ogc:Function>   
          </ogc:Function>
        </Transformation>

Looking at the SLD, the parameters are data, interval and simply.

Here is the geoserver openlayers view of the data using the default "raster" sld...

http://maps.zgb.de/geoserver/zgb/wms?service=WMS&version=1.1.0&request=GetMap&layers=zgb:DGM_ZGB&styles=&bbox=3567985.49,5723878.92,3642709.49,5856934.92&width=287&height=512&srs=EPSG:31467&format=application/openlayers

Is this a data issue or a geoserver issue?

Cheers for any advice,

Rob

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[geowolf]

On Sat, Nov 3, 2012 at 10:04 AM, Robert Buckley
<[hidden email]> wrote:
> Hi,
>
> java.lang.RuntimeException: Unable to find function parameter
> Unable to find function parameter

You need the WPS extension installed to use rendering transformations

Cheers
Andrea

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