I would say that we need a new type of relation for that. Jo
2015-09-09 17:25 GMT+02:00 David Marchal <pene...@live.fr>: > > map the underground stream if possible. > > As I don't know where the intake from the first stream is, I think I can't > map it this way. Besides, wouldn't that make the link exclusive, i.e. tell > that the water only comes from one point and exits at another? If so, I > can't either, as no-one can be sure of that in karstic systems: you can be > sure that a ponor feeds a spring, but not that only this single ponor feeds > only this particular spring, as there can be other ponors feeding this > spring, and other springs fed by this ponor. > > Anyway, I can remember of some locations where a stream is known to be > undergroud, and that it is the same stream all along, running underground > below its dry bed during summer and filling it only during winter, so that > will be useful. > > > If mapping the underground stream is not an option use the quite normal > > relation waterway. > > The problem is that the resurgence is renowned as a separate river, even > if the link with the losing stream is well known, and those rivers both has > their waterway relation. How can I map the link without messing with the > separate waterway relations ? By creating a super-relation ? I don't want > to FUBAR the data. > > Regards. > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > >
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