In which case, my apologies for misinterpreting, and I completely agree that duplicated nodes serve no purpose whatsoever.
Gregory > -----Original Message----- > From: Jochen Topf [mailto:[EMAIL PROTECTED] > Sent: 19 August 2008 09:59 > To: Gregory Williams > Cc: [email protected] > Subject: Re: [OSM-dev] Autocorrectable data inconsistency > > You have misinterpreted the topic. Its about having the exact same node > several times one after each other in a way. > > Jochen > > On Tue, Aug 19, 2008 at 08:55:06AM +0100, Gregory Williams wrote: > > I've only seen this thread partway through, so please tell me if I've > completely misinterpreted the topic. > > > > As I see it there is a case, at least on a practical level, for > storing a series of nodes along a straight line in a way. Imagine a > very long straight road that crosses multiple z12 tiles. If this were > stored in its simplest geometric form then there wouldn't be nodes > within (or potentially in the extra margin that [EMAIL PROTECTED] downloads) > a z12 > tile. Therefore the tile would be rendered as if that road doesn't > exist. > > > > Similarly if somebody working in an editor doesn't download a > sufficiently large area to encompass at least one of the way's nodes > then they may get the impression that the road hasn't yet been entered > into OSM's data. That might even lead to them drawing their own road > along the same path! > > > > Gregory > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] [mailto:dev- > > > [EMAIL PROTECTED] On Behalf Of Jochen Topf > > > Sent: 19 August 2008 08:24 > > > To: Joachim Zobel > > > Cc: [email protected] > > > Subject: Re: [OSM-dev] Autocorrectable data inconsistency > > > > > > On Mon, Aug 18, 2008 at 11:17:53PM +0200, Joachim Zobel wrote: > > > > Am Montag, den 18.08.2008, 13:30 +0200 schrieb "Marc Schütz": > > > > > Is there actually a valid use case for having the same node > > > multiple > > > > > times in a row? > > > > > > > > I don't see any. > > > > > > > > I could write a script to korrect the existing ones. Do the > > > sequence_ids > > > > have to be in sequence (which means the ones above need to be > shifted > > > > down) or does a simple DELETE per dupe do it. > > > > > > All changes should be done through the API. Do changes on the > database > > > directly only leads to inconsistencies. The API does not expose the > > > sequence number, so the order alone is fine. > > > > > > Jochen > > > -- > > > Jochen Topf [EMAIL PROTECTED] http://www.remote.org/jochen/ +49- > 721- > > > 388298 > > > > > > > > > _______________________________________________ > > > dev mailing list > > > [email protected] > > > http://lists.openstreetmap.org/listinfo/dev > > > > > > _______________________________________________ > > dev mailing list > > [email protected] > > http://lists.openstreetmap.org/listinfo/dev > > > > -- > Jochen Topf [EMAIL PROTECTED] http://www.remote.org/jochen/ +49-721- > 388298 > _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
