thank you very much for these informations Matt !
mpriour a écrit : > This IS definately an idea that has merit. A number of other people have > discussed this issue. Tiled vector datasets work well for points, pretty > good for lines, but run into some serious issues with polygons. > There is already a python based tool developed by Microsoft Research Labs > that breaks up point & line datasets into small javascript files containing > object literals (I don't know if GeoJSON is used or some other format). You > can find this at: > http://research.microsoft.com/MapCruncher/TiledVectors/TiledVectorsDemo-1.1/description.html > http://research.microsoft.com/MapCruncher/TiledVectors/TiledVectorsDemo-1.1/description.html > > > You can also read some ideas on this on the MapWrecker blog (the most > interesting part is in the comments section): > http://mapwrecker.wordpress.com/2007/07/17/well-know-vs-rational-vector-delivery/ > post 1 , > http://mapwrecker.wordpress.com/2007/08/24/rational-vector-delivery-pre-game/ > post 2 > hope that helps validate your idea and give you some perspective on what > other's have thought about this problem. > Matt Priour > Kestrel Computer Consulting > > > Guillaume Sueur-2 wrote: >> Hi, >> >> Has anyone of you had a thought about caching vector data in a web >> format (GML, GeoJSON, GeoRSS...) ? >> What I mean is a tilecache system for which one would set a tolerance >> depending on the scale, and which would store the little files >> corresponding to the generalized original data on the tile extent. >> >> Do you think the performances of vector display would be increased or is >> this idea complete crap ? >> >> Thanks >> -- >> Guillaume SUEUR >> >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://openlayers.org/mailman/listinfo/dev >> >> > -- Guillaume SUEUR Expert SIG et OpenSource NEOGEO 46 RUE MATABIAU 31000 TOULOUSE 06 74 91 95 20 Site web : http://www.neogeo-online.net _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
