[OSM-talk] Administrative boundaries export

Christian Quest cquest at openstreetmap.fr
Thu Oct 3 06:56:10 UTC 2013

Well, I think I fully understand all the diversity, but when you want the
"shape of UK" or Liberia, I presume most people expect the land, not the
maritime boundaries claimed ones or whatever.

This does not prevent to have 2 boundary relations, one for land boundary
and one including maritime ones (that's the case for France for example +
one including overseas land), but make sure the tagging is homogeneous
worldwide as far as possible to allow easy reuse of data.

I've been asked too about "all maritime boundaries of the world"... I tried
to extract that but it was too inconsistent to be useable.

2013/10/3 Martin Koppenhoefer <dieterdreist at gmail.com>

> > Am 02/ott/2013 um 23:52 schrieb Christian Quest <cquest at openstreetmap.fr
> >:
> >
> > UK level 4 is on the maritime borders (island culture ?) where most
> other European countries stop on the coastline... tagging bio-diversity is
> not helpful !
> well, maybe this is how things are correct? years ago I stumbled upon
> Liberia having a 200NM maritime border. Checking with other sources it
> turned out that they indeed claim this area. Looking now at the osm map
> someone has "normalized" the coastline leaving them the same maritime
> border than the rest, and it looks "better" but I'm not sure it also is
> more correct.
> The world is divers and the map should represent how things are, even if
> this seems more chaotic than nicely structured.
> cheers,
> Martin

Christian Quest - OpenStreetMap France
Un nouveau serveur pour OSM... http://donate.osm.org/server2013/
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