Andrea, I tried the demo and it works perfectly. Now I'm getting a problem with the request because we have a proxy between openscales and geoserver and somehow the url is being changed (or something else) and geoserver is ignoring the cql_filter parameter. Anyway... this problem is not related to the geo stuff.
Thank you very much for your excellent answer. On May 14, 2010, at 12:04 PM, Andrea Aime wrote: > Miranda Mauricio ha scritto: >> Hi people! >> Quick question... is it possible to filter a getfeatureinfo request with a >> cql_filter parameter or something like that? > > In GeoServer it is possible, but we're talking about a custom extension > here, cql_filters are not part of the standard WMS protocol. > > For example, here is a WMS query that will return all US states starting with > an M (filter is STATE_NAME LIKE 'M%') > > http://demo.opengeo.org/geoserver/wms?HEIGHT=330&WIDTH=780&LAYERS=topp%3Astates&STYLES=&SRS=EPSG%3A4326&FORMAT=image%2Fpng&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&CQL_FILTER=STATE_NAME%20LIKE%20%27M%25%27&BBOX=-139.84813671875,18.549615234375,-51.85286328125,55.778384765625 > > And then we can do a GetFeatureInfo over Kansas, and if > you don't add the filter, you get back the usual HTML table: > > http://demo.opengeo.org/geoserver/wms?REQUEST=GetFeatureInfo&EXCEPTIONS=application%2Fvnd.ogc.se_xml&BBOX=-139.848137%2C18.549615%2C-51.852863%2C55.778385&X=363&Y=148&INFO_FORMAT=text%2Fhtml&QUERY_LAYERS=topp%3Astates&FEATURE_COUNT=50&Layers=topp%3Astates&Styles=&Srs=EPSG%3A4326&WIDTH=780&HEIGHT=330&format=image%2Fpng > > but if you add the filter, you get back nothing as Kansas does not satisfy it: > > http://demo.opengeo.org/geoserver/wms?REQUEST=GetFeatureInfo&EXCEPTIONS=application%2Fvnd.ogc.se_xml&BBOX=-139.848137%2C18.549615%2C-51.852863%2C55.778385&X=363&Y=148&INFO_FORMAT=text%2Fhtml&QUERY_LAYERS=topp%3Astates&FEATURE_COUNT=50&Layers=topp%3Astates&Styles=&Srs=EPSG%3A4326&WIDTH=780&HEIGHT=330&format=image%2Fpng&CQL_FILTER=STATE_NAME%20LIKE%20%27M%25%27 > > As I said, all of this is GeoServer specific. Other server might have > different ways of providing a similar functionality > > Cheers > Andrea > > -- > Andrea Aime > OpenGeo - http://opengeo.org > Expert service straight from the developers. > _______________________________________________ > Discuss mailing list > Discuss@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/discuss Mauricio Miranda Software Engineering Manager http://www.xoomcode.com _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
