Why iwould it be not useful to public transport routing? On Sun, Oct 10, 2010 at 5:08 PM, Mike N. <nice...@att.net> wrote: > Even a relation adds no information to the map, other than perhaps "these > are points on the surface of the earth which allow for an unobstructed > atmospheric path to be calculated between". > > There are about 28,000 aeroway=aerodrome tags, and 12,000 runways > tagged. So if we wish to add relations between all possible airports, that > represents about 72,000,000 great circle relations that would need to be > added to cover them all. > > From: Aun Johnsen > Sent: Sunday, October 10, 2010 10:34 AM > To: OpenStreetMap > Subject: Re: [OSM-talk] Flight "paths" in OSM > If there is any interest of mapping airline routes, than do it with a > relation between the airport nodes, as great circles can easily be > calculated between two known positions. Making lines on the map is easy > enough when you have the end positions, and nodes in between is not > necessary at all. > > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk > >
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