[OSM-talk-fr] Limites administratives espagnoles et frontières avec la France

[Skywave]

I was talking about the comparison between Cadastre and the Spanish
Data, i don't have the exact data of the borderstones, but the Spanish
data seems to be following it more, the Cadastre data has more curves
but the difference is measured in centimers not meters. There are a
few bordersstones in the database, one by me, a couple by others, they
match both the Cadastre and the Spanish data. But imo if you would
draw a line between each borderstone it would look more like the data
from the Spanish source

And i know the difference between cadastre, CIA, and the Spanish data,
as they were imported by me in that region. Cadastre.fr has of course
also country borders as they share borders, the Spanish data i got
from a file sent by the importer, the CIA data should be deleted as
soon as possible.

The data from the French cadastre is just fine for the purpose in OSM,
i have only slightly altered the existing Cadastral borders in the
Pyrenees Orientales: i cleaned out some unnecessary nodes and cutted
it in pieces to fit in the Spanish relations. I've deleted the
Andorrian-Spanish border, as it was from the CIA world databank

http://www.openstreetmap.pl/balrog/limites-omitidos.osm.bz2

2009/12/4 Christophe Merlet (RedFox) <redfox at redfoxcenter.org>:
> Le vendredi 04 décembre 2009 à 23:11 +0100, Skywave a écrit :
>
> Hi
>
>> I've merged the Spanish data, from near the western
>> Andorra-France-Spain triborderpoint (where the data is really bad) to
>> the Mediterrean sea. I personally think the Spanish data is a little
>> better than the Cadastre data.
>
> Cadastral data are only for administrative level 8. A few were imported
> along the France-Spain frontier as you can see here.
> http://beta.letuffe.org/?zoom=10&lat=42.47555&lon=2.56539&layers=B0000FFFFFFFTFFFFFF
>
>
> The France-Spain frontier is an old import of the CIA World Database.
> You can modify these ways :)
>
> Where there are Cadastral Data, how can you be sure your data are
> better ? Do you have the coordonates of the "mojones" ?
> http://es.wikipedia.org/wiki/Frontera_entre_Espa%C3%B1a_y_Francia
>
>
>        Librement,
> --
> Christophe Merlet (RedFox)
>