I guess with osmosis there is no way to avoid having to enter in the center coordinates of the osm file?
And in josm, is there (or will there be)? An option to invert selection? Having that option i could chop the file into doughnuts and timbits. Is there an easy way to slice a SHP file then? Thanks, Sam On 6/2/09, Karl Newman <siliconfi...@gmail.com> wrote: > On Sun, May 31, 2009 at 9:52 AM, Chris Jones <roller...@sucs.org> wrote: > >> >> On 31 May 2009, at 15:40, Sam Vekemans wrote: >> >> > Hi, >> > I already got part of the answer - 50,000 (things; nodes, lines, areas >> > -total) so now i want to know, what approx size (in mb, kb) is safe? >> > I loaded a changeset of 358 kb and it seemed happy. Would 1 meg be >> > too much? >> >> Size all depends on the volume of tags attached to the objects. >> >> > I know that there is a max geographical download area built in, (it's >> > say's "download area OK, size probably acceptable by server") but is >> > there a time out or an exact max file size to download? (a squak >> > level) (i know that i download a large area when im tracing from my >> > GPS Tracks. (Victoria is about 8 megs) and so it takes a little time >> > to load, so i dont load that big area any more, i just open that old >> > Victoria file, then zoom to the area im working in, then get the >> > latest updates for that small area. >> >> There a limits (on the main api) on both area 0.25 degree squares and >> number of objects returned. >> >> See http://api.openstreetmap.org/api/capabilities >> >> > Also, is there an easy way i can chop the .osm file into 4 or 16 happy >> > geographical area chunks? Thus, smaller file sizes to deal with. >> >> Osmosis - http://wiki.openstreetmap.org/wiki/Osmosis >> > > Be careful using Osmosis for this purpose. It's fine for cutting out one > area, but for cutting an input file into multiple adjacent areas, it's less > than ideal. You'll either get duplicate data (completeWays=yes) in adjacent > areas or incomplete/mangled data (gaps at the border). If you're going to > process the output offline, it's no big deal, but if you plan to upload it, > it matters. > > Karl > _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
