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

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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...

Is this a data issue or a geoserver issue?

Cheers for any advice,

Rob

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Yours with thanks, Robert Buckley System: Linux Ubuntu 10.04 Server / Tomcat6 / Geoserver 2.1.2 / GeoWebCache 1.2.6)
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Re: SLD Transformation <ogc:Function name="gs:Contour"> error:

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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