Hi,
Am Dienstag, den 23.12.2014, 04:19 +0000 schrieb Russ Nelson:
> Hi. I'm editing the Hudson River all as one entity, from its beginning
> in the Adirondacks to its end at NYC. Along the way, there are some
> islands that need to be excluded, so it's not just riverbank,
> riverbank, riverank. It's riverbank, multipolygon(riverbank, island,
> island), riverbank.
>
> In theory at least, I could make the whole riverbank into one
> multipolygon, with a bunch of outers (about 50) and inners (about
> 200). Would that create a problem for other editors? To load the whole
> thing, you would have to load a LOT of nodes.
I'd not create large multipolygons, they are hard to maintain and break
easily.
> Or, conversely, should I keep it as about 20 plain ways and 30
> multipolygons? But what kind of a relation do I make for the entire
> riverbank? It was type=collection, but the wiki barfs all over that. I
> tried making it a multipolygon of multipolygons, but JOSM barfs up on
> that ("Non-Way in multipolygon"). Is there even a way to tag this
> properly? For now, I'm keeping it as type=collection just to upload it
> for safekeeping.
There are only few relations, where mappers have tried to collect
riverbanks:
http://www.h-renrew.de/h/osm/osmchecks/02_Relationstypen/planet_waterways/bd8a1061c196c9de.html
I think it is nearly impossible to maintain them.
It's much easier to just create the waterway relation for the line
feature of the river. (Hudson River already has one)
https://www.openstreetmap.org/relation/2148192
If you need the riverbank of a river, you could just use the waterway
relation of the river and get all water area features (lakes,
riverbanks, ...) that are touched by the waterway segments.
I think its easier to use a computer for that.
Regards
Werner (werner2101)
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