[OSM-talk] Naga City in OSM Re: GML to OSM

[Lester Caine]

Iván Sánchez Ortega wrote:
> <quote who="Lester Caine">
> 
>> Something that has already been discussed is an information box for the
>> corner of a map with reference data, but without information accessible
>> quickly from the data how do you populate that box? Cached data on a tile
>> by tile basis may be possible, but it still requires access to the raw
>> data in the first place and having to search a large adjacent area just
>> to find a country name is silly when a properly managed is_in would
>> return it in the one database query?
> 
> If you want to manually manage the is_in tag in 20 millions of nodes,
> please be my guest.
> 
> I suggest setting up a server dedicated to grabbing a planet every week,
> processing it for boundaries, and automatically generating the is_in tags.
> Or cached data on a tile-by-tile basis, for that matter.

This is exactly the point! It HAS to be automatic so that a unique is_in tag 
can be managed. Doing it manually simple does not work, which is why we need 
help from the database.

Just renaming the process 'relations' does not solve the problem either. We 
know we have problems with some areas straddling other boundaries and this 
needs managing. Other boundary data may well follow different rules so there 
are different is_in relations for say postcode to ward or even county ( yes 
the post office moves villages for it's convenience ;) )

We just need to agree a way of moving this forward so that some of us COULD 
mork on implementing it!

-- 
Lester Caine - G8HFL
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