On Wed, Oct 10, 2012 at 12:53 PM, <thomas.wande...@dlr.de> wrote:
> Hello,
>
> I could not find any exact information on the possibility of using
> OGC/CQL_FILTER/FEATUREID querying with raster data on Geoserver and WMS in
> general. Somehow I always thought this is the task of WCS but the possible
> parameters are quite limited and I must say it is hard to find information
> on WCS. Ok, Geoserver provides some raster related vendor parameters but
> I'm interested in how I can filter raster sets by channel or by value in a
> general way. Of course styling is always an option but are there other
> options?
>
There is no such functionality in either plain WCS or WMS.
In WMS you can actually pass a filter against rasters, and if the raster in
question is a mosaic you'll
end up filtering on the properties attached to the mosaic tiles, but not
against the raster contents.
As far as I remember what you're looking for is provided by the WCPS
service (Web Coverage Processing Service,
http://www.opengeospatial.org/standards/wcps) which we don't implement
(yet, if anybody is interested in donate code in that direction or funding
its development we'd be glad :-p )
Cheers
Andrea
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