> > Can someone please explain the logic of not recording major changes in > the > > database such as shifting an entity?
That's not correct. There _are_ records for every way shifting in the database. They are simply not there where you would expect it. ;-) However, it should not be too difficult to retrieve the information you need from the node records, as the node records are referred to by the way records. Marqqs -------- Original-Nachricht -------- > Datum: Wed, 6 Jul 2011 19:31:33 -0400 > Von: Anthony <[email protected]> > An: "Dave F." <[email protected]>, Frederik Ramm <[email protected]>, > OSM-Dev Openstreetmap <[email protected]> > Betreff: Re: [OSM-dev] [OSM-legal-talk] license change effect on un-tagged > nodes > On Wed, Jul 6, 2011 at 7:14 PM, Dave F. <[email protected]> wrote: > > On 06/07/2011 21:04, Anthony wrote: > >> > >> On Wed, Jul 6, 2011 at 3:57 PM, Frederik Ramm<[email protected]> > wrote: > >>> > >>> Dave F. wrote: > >>>> > >>>> If one of these gets moved then the whole way gets updated, > >>> > >>> No. > >> > >> Substantively, that is what happens, but technically, in the database, > >> it is not. > >> > >> In the database, we go from: > >> > >> <way id=1><nd id=8><nd id=9><nd id=10></way> > >> <node id=8 lat=82 lon=18 /> > >> <node id=9 lat=81 lon=18 /> > >> <node id=10 lat=81 lon=17 /> > >> > >> to: > >> > >> <way id=1><nd id=8><nd id=9><nd id=10></way> > >> <node id=8 lat=81 lon=17 /> > >> <node id=9 lat=80 lon=17 /> > >> <node id=10 lat=80 lon=16 /> > >> > >> Of course, I think that obviously this: > >> <node id=8 lat=81 lon=17 /> > >> <node id=9 lat=80 lon=17 /> > >> <node id=10 lat=80 lon=16 /> > >> > >> is a derivative of this: > >> <way id=1><nd id=8><nd id=9><nd id=10></way> > >> <node id=8 lat=82 lon=18 /> > >> <node id=9 lat=81 lon=18 /> > >> <node id=10 lat=81 lon=17 /> > >> > >> (assuming a way with, say, 1000 nodes rather than 3...where between 3 > >> and 1000 you can stop, well, that's a different question) > > > > Well, I learn something new every day. > > > > This explains a lot - as to why entities keep moving but there's no > record > > of it. > > > > Can someone please explain the logic of not recording major changes in > the > > database such as shifting an entity? > > I suggest you ask that question on the dev list. > > _______________________________________________ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
