[OSM-talk-ie] One townland spread across two different areas

[Conor Jones]

Hi folks,

First off, great to be back on the mailing list and to see a very active,
committed community alive and kicking

I've started mapping townlands in SW Donegal - and while I went at it with
all guns blazing... it's damn hard work!


I've encountered a few strange occurrence last-night on my maps where the
one townland is spilt across 2 dis-joined areas

Examples:

Cappagh townland (OSM):
http://www.openstreetmap.org/relation/4139615#map=16/54.6334/-8.6459

Cappagh townland  (OSI 25"):
http://maps.osi.ie/publicviewer/#V1,558685,876576,7,9

I shouldn't use the OSI link but I can't find a method for linking to an
area on the TCD sheets


You'll see that that small townlands of Cappagh and the bordering townland
of Croaghlin are marked as "part of ..." the larger townlands of the same
name just off to the West

For now, I have simply created a seperate relation / townland for each
section and named them the same, which OSM seems to be handling OK... but
Nominatim will only see one instance it appears. However, I believe that to
do this correctly, I should use a master relation or somehow merge the
boundaries of each townland section into one relation

Has anyone encountered similar to this? It seems to be common in the area
I'm mapping in SW Donegal

Any advice?


Cheers,

C