Ok, thank you a lot for this info Andrea...even it is a real downer for me :(
I always expected that I can easily filter Raster datasets but it seems that
thanks to some extensions some more complicated operations are possible while
this will wait for another standard...
What actually is the WCS then for? For me it seems like some very unuseful
extra standard...at least I haven't seen any demo that shows the added value.
I can clarify my plans a bit more: While styling seems to do exactly the things
we need (Make certain areas of a raster transparent, for instance all elevation
above a certain percentage) it works only visually when viewing in the map. But
our application should combine some exclusion masks from an ensemble of raster
layers (with a filter applied to them). This will be done by a WPS, so we need
real filtered datasets and not only visually applied styles.
Thomas
Von: andrea.a...@gmail.com [mailto:andrea.a...@gmail.com] Im Auftrag von Andrea
Aime
Gesendet: Mittwoch, 10. Oktober 2012 18:37
An: Wanderer, Thomas
Cc: geoserver-users@lists.sourceforge.net
Betreff: Re: [Geoserver-users] OGC or CQL queries on raster data
On Wed, Oct 10, 2012 at 6:25 PM,
<thomas.wande...@dlr.de<mailto:thomas.wande...@dlr.de>> wrote:
> 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.
This works only with Geoserver or plain WMS?
So for example it should work with a GeoTIFF that has a property table ?
It is a GS specific extension and works only if you have loaded the rasters as
a image mosaic,
the mosic index contains the name and spatial location of each tile, but it can
be extended
to have extra informations attached to it, like time or elevation of that
granule (that's how
we handle time and elevation for rasters in GeoServer)
Cheers
Andrea
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