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<p>I prefer that those complete newbies get to mess with only 1 or 2 members of route relations, at the relatively small price of ordering.</p>
<p>Peter Elderson skrev den 03.05.2019 16:12:</p>
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<div dir="ltr">You prefer routes to stay unordered? Or that edits damage routes?<br clear="all" />
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<div class="gmail_signature" dir="ltr">Vr gr Peter Elderson</div>
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<div class="gmail_attr" dir="ltr">Op vr 3 mei 2019 om 16:08 schreef <<a href="mailto:osm@hjart.dk">osm@hjart.dk</a>>:</div>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;"><br /> >>> For a non-roundtrip route consiting of two consecutive ways the route<br /> >>> direction can be deduced from the order of the ways in the relation.<br /> >> <br /> >> That's assuming the ways are ordered at all. I've cleaned up hundreds <br /> >> of routes (most created by Potlatch users though) and my advice is: do <br /> >> not rely on routes being ordered.<br /> > <br /> > In OSM a relation is by definition an ordered list, see<br /> > <a href="https://wiki.openstreetmap.org/wiki/Relation" target="_blank" rel="noopener noreferrer">https://wiki.openstreetmap.org/wiki/Relation</a> :<br /> > "A relation is a group of elements. To be more exact it is one of the<br /> > core data elements that consists of one or more tags and also an<br /> > ordered list of one or more nodes, ways and/or relations as members<br /> > ..."<br /> > <br /> > Also the elevation profiles for the routes (e.g. in<br /> > <a href="http://waymarkedtrails.org" target="_blank" rel="noopener noreferrer">waymarkedtrails.org</a>) only work if the routes are ordered and they<br /> > usually look ok, see also<br /> > <a href="https://wiki.openstreetmap.org/wiki/Relation:route#Order_matters" target="_blank" rel="noopener noreferrer">https://wiki.openstreetmap.org/wiki/Relation:route#Order_matters</a> .<br /> > <br /> > If some editors damage the order in the relations this is a bug that<br /> > should be fixed anyway.<br /><br /> In order to sort the members of a relation in JOSM, you need to download <br /> all of them. The majority of edits to relations involve downloading only <br /> 2-3 members. If only 1 member is added or removed, that's how they <br /> become unordered.<br /> Personally I'd prefer it stays like that, because I've seen complete <br /> newbies make some really weird edits to cycleroutes, because they <br /> obviously didn't understand what it was.<br /> > <br /> > _______________________________________________<br /> > Tagging mailing list<br /> > <a href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a><br /> > <a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank" rel="noopener noreferrer">https://lists.openstreetmap.org/listinfo/tagging</a><br /><br /> _______________________________________________<br /> Tagging mailing list<br /><a href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a><br /><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank" rel="noopener noreferrer">https://lists.openstreetmap.org/listinfo/tagging</a></blockquote>
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<div class="pre" style="margin: 0; padding: 0; font-family: monospace">_______________________________________________<br /> Tagging mailing list<br /><a href="mailto:Tagging@openstreetmap.org">Tagging@openstreetmap.org</a><br /><a href="https://lists.openstreetmap.org/listinfo/tagging" target="_blank" rel="noopener noreferrer">https://lists.openstreetmap.org/listinfo/tagging</a></div>
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