On Thu, Sep 30, 2010 at 9:27 AM, <[email protected]> wrote: > You are assuming that any such data will be available in an online source > that can be queried > during the rendering process. This won't necessarily be the case.
Why does it have to be online? You can use a downloaded version. > For example, a private organization or government agency might decide, for > security reasons, > to supply data on media such as DVDs rather than giving the public access to > their servers. > In that case, each rendering engine would need its own copy of that database, > or some third > party would need to supply a server for the exported data. Each rendering engine which wanted that data would need its own copy of that database. Yes. Better (or at worst equivalent) to every rendering engine having a copy of every database, in its copy of the OSM data (*). For especially popular data it could even be included at planet.openstreetmap.org. Correct me if I'm wrong, but isn't this already the way mapnik works? I seem to remember having to download a separate database file while installing mapnik (**). (*) Or are you talking about a rendering engine that doesn't have its own copy of OSM? How does it get the data? I didn't think we were allowed to have a rendering engine which looks up its data through the API, so I'm not sure how you'd go about doing that. (**) http://tile.openstreetmap.org/world_boundaries-spherical.tgz , http://tile.openstreetmap.org/processed_p.tar.bz2 , http://tile.openstreetmap.org/shoreline_300.tar.bz2 , http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/10m-populated-places.zip , http://www.naturalearthdata.com/http//www.naturalearthdata.com/download/110m/cultural/110m-admin-0-boundary-lines.zip _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
