[GeoNode-devel] Thumbnail generation issue for layer in non EPSG:4326 projection

Alessio Fabiani alessio.fabiani at geo-solutions.it
Fri Feb 2 09:13:10 PST 2018

Created an issue here


Alessio Fabiani

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2018-01-23 10:28 GMT+01:00 Peter Marlow <Peter.Marlow at scisys.co.uk>:

> Hi,
> I’ve encountered an issue where I’m getting GeoNode to generate layer
> thumbnails as part of the *updatelayers* command. The problem I have is
> that when I configure the layer in GeoServer in order to get a valid
> thumbnail produced I then lose the ability to filter by extent for that
> layer in GeoNode. I believe this is because the layer in question is in a
> UK projection system and not EPSG:4326.
> In order to get a valid thumbnail produced I have to set the following
> properties in GeoServer:
> However with these details set when I filter by extent in GeoNode using
> either the API or web interface the layer is no longer returned (example
> filter: http://<geonode_host>/layers/?limit=100&offset=0&extent=-6.
> 899414062500001,48.07807894349862,4.658203125000001,56.145549500679074)
> I think this is because the extent being provided via the filter is in
> EPSG:4326 (as this is what GeoNode supports) but the lat/lon Bounding Box
> in GeoServer is in EPSG:27700. If I change the Lat/Lon Bounding Box to be
> EPSG:4326 coordinates in GeoServer then I get a blank white image generated
> for the thumbnail and the extent filter starts working again.
> I’ve tried all the combinations and SRS Handling, Native Bounding Box and
> Lat/Lon Bounding Box but I cannot get a valid thumbnail and the extent
> filter to work at the same time.
> Is what I’m trying to do possible? Thanks in advance for any feedback!
> Thanks,
> Pete
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