[OSM-talk-be] Nominatim administrative boundaries
Glenn Plas
glenn at byte-consult.be
Fri Jun 14 13:44:01 UTC 2013
>> I was just looking that information up in the forum.
>> As far as I can find out now, a boundary is a way with a tag boundary=*
> Yeah, I'm making some shortcuts: someone has to map the boundaries with
> boundary=administrative + admin_level=9 for the deelgemeenten. Then the proper
> boundaries have to added to the relation that defines the full area of
> Werchter.
>
> As you can see on
> http://nominatim.openstreetmap.org/details.php?place_id=39355280
> nominatim doesn't have any knowledge about it belonging to Werchter. It knows
> it's inside the Rotselaar boundaries. It can look at nearby place nodes, but
> then can't do more than guessing if it does belong to it or not, and decides
> on that by measuring the distance to that node. In the case of Leybos, it
> relates it to Heikant, so searching for "Leybos, Heikant" does give you the
> results.
>
> If you look at another street more closely to the place node of Werchter, like
> http://nominatim.openstreetmap.org/details.php?place_id=5990195272
> you see that it does relate the street to Werchter, so "Hazepad, Werchter"
> returns the expected results.
>
> So what has to be done to make Leybos belong to Werchter: we have to map it as
> being part of it, which we do by adding administrative boundary relations.
> Which is something we're going to need a source for first, since they
> generally don't mark these boundaries with big white painted lines in real
> life... So if anyone has them, share them :-)
>
> Ben
I think that will be the solution, all I can find dates back to 1600.
http://search.arch.be/eadsearch/inventaris/index/eadid/BE-A0510_004732_005707_DUT/inventarisnr/I47325707170/level/file
It's an index , so no real map.
Glenn
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