On Sat, Feb 25, 2012 at 11:40 AM, Peter Freimuth <[email protected]> wrote:
> Hi,
> i would like to know if it is possible to use additional vendor
> parameters or an CQL_FILTER expression in context of WCS in Geoserver
> 2.2.x.
> Currently i plan to use UMN mapserver for a WCS to stream large amounts
> of satellite data imagery. The Mapserver Layer will use a PostGIS table
> as tileindex and parameters like aquisition_datetime, datasetid,
> parentid can be used in the GetCoverage request to filter the imagery
> that is taken into account. Which mechanism exist in GeoServer to
> support a similar flexibility on WMS and WCS.
>
In WMS CQL_FILTER applies to both vector and raster layers, for rasters it
will
work over mosaics, where each tile of the mosaic has been associated with
extra attributes that you can filter on.
For WCS try adding a cql filter in a &FILTER=... parameter, I did not try
out myself
but looking at the code it seems that will also be sent down to the mosaic
and
applied over tile attributes stored in the tile index.
Cheers
Andrea
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Ing. Andrea Aime
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