On Fri, Jun 4, 2010 at 12:30 PM, Richard Fairhurst <[email protected]> wrote: > I'm intending to give Halcyon (the rendering engine behind Potlatch 2, > but also a standalone applet) the ability to render direct from .osm files. > > You will, of course, be able to punt an arbitrary .osm file at it and > let it render it. > > But I'd also like it to cope with .osm tiles. In other words, you could > have a bunch of .osm files, each covering a given bbox. As the user > browsed around the map, Halcyon would load tiles as appropriate. It > saves setting up a database for simple applications. > > Does anyone here have any thoughts on a naming convention for these > files? xmin_ymin_xmax_ymax.osm is the first thought that springs to > mind, but maybe someone's done all this before...
Gosmore Earth uses the same concept, but I can't imagine Potlatch using continent sized bboxes, so I doubt you will be able to use the same scheme: The encoding is xmin_ymin_xmax_ymax in the Mercator projection. x and y both integers in the range 0 to 1024. So a 1x1 cell is roughly 30km x 30km. http://dev.openstreetmap.de/gosmore/ When the need arise for splitting the planet into the bboxes, you can use this utility (checked into svn under gosmore): https://lists.openstreetmap.de/pipermail/devserver/2010-March/000517.html > cheers > Richard > > _______________________________________________ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev > _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
