[Tagging] natural=bay as nodes are evil

Janko Mihelić janjko at gmail.com
Mon Oct 27 10:21:23 UTC 2014

I had a proposal about mapping peninsulas [1] and it involved adding
peninsula=* tags to coastlines. I think bays should be mapped the same way,
on coastline ways. The question is what tags we should use. Adding new ways
and gluing them to coastlines, when coastlines themselves make a bay is in
my opinion superfluous.

[1] http://wiki.openstreetmap.org/wiki/Proposed_features/Peninsula

Janko  Mihelić

2014-10-27 11:03 GMT+01:00 Martin Koppenhoefer <dieterdreist at gmail.com>:

> 2014-10-26 21:38 GMT+01:00 Christoph Hormann <chris_hormann at gmx.de>:
>> Specific arguments aside - i am not sure if you realize the consequences
>> it would have if subareas of oceans would generally be mapped as
>> polygons - large bays usually contain smaller bays and are parts of a
>> sea and there might be a strait between an island and the coast within
>> that bay.  If you want to edit the coastline in such situation you
>> would end up having to deal with a handful of convoluted multipolygon
>> relations, some of them of colossal size.
> yes, you'd end up with nested multipolygons, some of the huge (the latter
> might become a problem). On the other hand it is clear that nodes don't
> convey any of the hirarchy or size information and hence are a poor
> representation.
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