On Wed, Jul 21, 2010 at 11:52 PM, Lars Francke <lars.fran...@gmail.com>wrote:
> On Wed, Jul 21, 2010 at 15:42, Brett Henderson <br...@bretth.com> wrote: > > I haven't looked at the full history dump to be honest so I'm not in a > great > > position to comment, but I'll comment anyway ;-) > > > > I'm curious what the format of the full history dump is. I'd like to > > understand how nodes, ways and relations are represented in the file but > I > > can't do so without downloading the whole thing and decompressing it. > > The format is pretty standard .osm XML. > It currently outputs a visible attribute for every object. > > Apart from that everything should be standard[1] and modeled after the > tool that writes the planet except that each element may occur > multiple times. > There are only two things to look out for: It is not "pretty-printed", > so everything is just one huge line (I know that some people do > line-based parsing but that won't work here) and as there's old data > mixed in not every element has uid and user attributes. > > Let me know if you have any questions or if a format change would help > in any way but I believe the current format is pretty normal and > should be parseable by almost every tool that already parses .osm > files. > That format is fine and exactly what I would have expected. I suspect Osmosis would parse it okay, but without support for the visible attribute it won't be particularly useful. > > Cheers, > Lars > > [1] > https://bitbucket.org/lfrancke/historydump/src/tip/src/main/java/org/openstreetmap/util/Dumper.java >
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