On Sat, Dec 12, 2009 at 10:45 PM, 80n <80n...@gmail.com> wrote: > On Sat, Dec 12, 2009 at 9:20 PM, Matt Amos <zerebub...@gmail.com> wrote: >> are there easter eggs in OSM? i thought we followed the "on the >> ground" rule? ;-) > > The two are not mutually exclusive. Ordnance Survey are well known for > having very accurate maps, they are also known to have easter eggs.
sure. but each easter egg is a deliberate inaccuracy. >> it isn't a good method of establishing grounds if the data may have >> been modified by the inclusion of 3rd party data, or processed in a >> way which would change the visual texture of the data. basically, >> while sometimes you can be sure there's a derivative database or that >> data is from OSM, a lot of times you can't be. >> > I think you've lost the thread. Now, you are arguing that you can't spot a > derivative database. i've been arguing that from the start. not only have i been saying it's difficult to tell if there's a derivative database, i've been saying it's the same difficulty as telling if a map is derived from OSM, or if a binary contains modified GPL code, or if a service is using modified AGPL code. cheers, matt _______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk