"it would be an explicit way to tag the beginning, otherwise you can't tell whether the start of a river in OSM is also the start of the actual river, or if there are missing parts in OSM."
You make a good point Martin. I hadn't thought of that but that's another reason for using an explicit tag. Now that you mention it, in my own mapping of the longer rivers in Alaska I often have time to trace only a short portion and postponing the rest for another session. If I can determine the start of one of those rivers and tag it, at least I know where that important place is and, more importantly, a Nominatum search can find it if I've also added a name tag to the node. The fact that sophisticated data consumers can use advanced techniques to locate a river's starting point, given that it's all present in OSM, doesn't help less sophisticated users locate these interesting places. Using a fixme tag at the end(s) of incomplete sections of waterways is also a good idea. Thanks for the suggestion. On Sat, Feb 25, 2017 at 9:29 PM, Wolfgang Zenker <wolfg...@lyxys.ka.sub.org> wrote: > Hi, > > * Martin Koppenhoefer <dieterdre...@gmail.com> [170225 14:23]: > >> On 25 Feb 2017, at 12:16, Dave F <davefoxfa...@btinternet.com> wrote: > > >> Won't the first node of the named way that's most upstream indicate its > start point by default? > > >> What advantages will adding a specific 'it starts here' tag bring? > > > it would be an explicit way to tag the beginning, otherwise you can't > tell whether the start of a river in OSM is also the start of the actual > river, or if there are missing parts in OSM. > > I usually leave a note "FIXME: stream continues, needs to be mapped" > or similar at the end node of streams or rivers that I map and have > not yet mapped to completion. > > Wolfgang > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
_______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
