Hi mappers, What's the best way to map rivers that flow into lakes, especially when another river flows through it? Should they be connected?
When a river flows through a lake, you can map a waterway=river way through it, to be "topoligcally complete". Or would it be better to add ways (w/o waterway tag) to the river relation? When a tributary river joins another, join the central waterway=river ways together. But what if a river drains into a lake with a "central river" through it? Should you connect that river to the central river? It makes topological sense. If you asked someone "Where does this river end?" they'd probably point to where it joins the lake. Connecting the river to the "central river" breaks this. And it can result in odd long ways. I might have gone a little OTT here ( http://tools.geofabrik.de/osmi/?view=water&lon=27.98062&lat=-16.95179&zoom=11 ) or here ( http://tools.geofabrik.de/osmi/?view=water&lon=-8.26705&lat=52.99047&zoom=11 ). Without joining the ways, then a data consumer will have to do complicated extra processing to deduce that one river "flows into" the other? (River X ends on the shore of a lake, River Y flows through the lake, so connect X to Y). Is that "good enough"? Thoughts? Rory _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk