Hi, at http://jira.codehaus.org/browse/GEOS-3854 you can see a first cut of the cached superoverlay mode patch.
The patch adds a "cached" superoverlay mode that delegates directly to GWC for all layers in the request where this is possible. The compatibility with GWC is checked by verifying all the KML related params are the same as the GS defaults, that the style is the default one, no wms filters, no palette, no maxFeatures or startIndex (can anyone think of something I've missed?). If that works, the code builds a link straight to the GWC main KML entry point for that layer, something like: http://host:port/geoserver/gwc/service/kml/prefix:layer.kml.kml for vectors and http://host:port/geoserver/gwc/service/kml/prefix:layer.png.kml for rasters Now, there is a catch. That link is actually good only if you want to point to the top of the 4326 hierarchy. Which is reasonable in reflector requests, that are unlikely to have a bbox, but less so in straight GetMap request, that always do. In that case the code already tries to find the best tile in the 4326 hierarchy matching the request, anyone with a quick suggestion on how I turn it into the proper GWC link? I already have the Z, need to find the X and Y given the tile envelope in 4326 and the zoom level. Cheers Andrea -- Andrea Aime OpenGeo - http://opengeo.org Expert service straight from the developers. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
