Short result of my weekend investigations. Successful integration stopped at the CatalogBuilder, GranuleDescripter,.... This architecture seems not well fitted for jdbc databases since it will cause a lot of unnecessary IO.
First, I have to load the the set of granule descriptors and afterwards, fetch BLOB data for each granule. Number of Select statements = number of granules + 1. The current imagemosaic JDBC module does the following: Input for raster data fetching 1) level 2) bbox Statement: select location,minx,miny,maxx,maxy,rasterdata from levelTable where bbox intersects geom. Result A set of georeferenced images. This set is the basis for mosaicking, cropping and scaling. We have exactly one statement. This is also possible using jdbc-ng SimpleFeatureTypes since BLOBs are supported. As a consequence, the module must be able to work with a set of features,each feature containing minx,miny,maxx,maxy and rasterdata. Unfortunately, I have not found a simple solution. We should not forget our special friend Oracle Georaster. Mosaicking,cropping and scaling is done in the database itself. Any ideas ? ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
