Hi Andrea, With regards to the simplification algorithm you mentioned, do you have an example of how this might work? or know of any sample code?
I would think this is something that would be well suited to building into OGR. With the increasing complexity and size of vector datasets, I would think that SetScale (As Frank suggested) would be just as relevant as SetSpatialFilter or SetAttributeFilter.... Cheers, Fodder aaime wrote: > > My 2 cents from Geotools/Geoserver land. We are using both tecniques in > fact, that is: > * our renderer subsystem gathers data from the datastores (the equivalent > of OGR data sources) and do generalize them on the fly using a simple > distance based algorithm before passing them to the rendering pipeline. > This buys us some 30%-50% speedup, more if data needs to be reprojected > because we try to generalize before reprojecting > > Hope this helps > Cheers > Andrea > _______________________________________________ > Gdal-dev mailing list > [EMAIL PROTECTED] > http://lists.maptools.org/mailman/listinfo/gdal-dev > > -- View this message in context: http://www.nabble.com/Looking-for-huge-vector-dataset-tp9287128p20727448.html Sent from the GDAL - Dev mailing list archive at Nabble.com. _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
