You prefer routes to stay unordered? Or that edits damage routes? Vr gr Peter Elderson
Op vr 3 mei 2019 om 16:08 schreef <o...@hjart.dk>: > > >>> For a non-roundtrip route consiting of two consecutive ways the route > >>> direction can be deduced from the order of the ways in the relation. > >> > >> That's assuming the ways are ordered at all. I've cleaned up hundreds > >> of routes (most created by Potlatch users though) and my advice is: do > >> not rely on routes being ordered. > > > > In OSM a relation is by definition an ordered list, see > > https://wiki.openstreetmap.org/wiki/Relation : > > "A relation is a group of elements. To be more exact it is one of the > > core data elements that consists of one or more tags and also an > > ordered list of one or more nodes, ways and/or relations as members > > ..." > > > > Also the elevation profiles for the routes (e.g. in > > waymarkedtrails.org) only work if the routes are ordered and they > > usually look ok, see also > > https://wiki.openstreetmap.org/wiki/Relation:route#Order_matters . > > > > If some editors damage the order in the relations this is a bug that > > should be fixed anyway. > > In order to sort the members of a relation in JOSM, you need to download > all of them. The majority of edits to relations involve downloading only > 2-3 members. If only 1 member is added or removed, that's how they > become unordered. > Personally I'd prefer it stays like that, because I've seen complete > newbies make some really weird edits to cycleroutes, because they > obviously didn't understand what it was. > > > > _______________________________________________ > > Tagging mailing list > > Tagging@openstreetmap.org > > https://lists.openstreetmap.org/listinfo/tagging > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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