I'm trying to calculate isotherms following the istructions showed in the post on OSGeo blog (http://blog.opengeo.org/2013/01/10/chaining-rendering-transformations-in-geoserver/)

I'm using GeoServer 2.2.3 on a Windows 7 machine (8 Gbyte RAM, biprocessor)

I've a shapefile with points and temperature and I'm trying to use the Meteo-1.sld

Using the layer in preview


it works fine but when I try to use le Meteo-1.sld


the map is white. It seems that there are no errors in the log.

When I try to use the Barnes Surface WPS directy (gs.BarnesSurface), I obtain a black tiff ....

At the following link https://www.dropbox.com/sh/fmbdhzwp5mobpcq/lf43d3SykM there are:

  • data.zip --> the shapefile I'm using
  • Meteo-1.sld --> the sld I'm using
  • geoserver.log --> geoserver log

Could someone tell me which configurations I've to use in the sld for my data? Or give me a sample data and a sld that works?

1 Answer 1


I worked a little bit on this issue and now I'm able to obtain something that works (still not a final work but it's fine ....).

At the following link https://www.dropbox.com/sh/fmbdhzwp5mobpcq/lf43d3SykM there are:

TemperatureBand.sld --> SLD to generate a temperature band surface
Isotherm.sld --> SLD ti generate isotherm from the temperature band surface
TemeperatureBand-Isothem --> SLD "all in one"

It seems better: try to creare a Group Layer using the point, the surface and the isothems and it looks better now.

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