OpenStreetMap Forum

PeterStadler

Member

Registered: 2017-12-06

Posts: 5

Searching for UK subdivisions polygons in poly format

Hello
I am searching for for UK subdivisions polygons in poly format as it can be selected on Polygon creation page.
Many of the counties cannot be found at OpenStreetMap Nominatim_ Search.html. I would prefer one page, where everyting is available.

Does such a site exist?

Sincerely Peter

trigpoint

Member

Registered: 2015-06-01

Posts: 16

Re: Searching for UK subdivisions polygons in poly format

Hi, welcome to OSM. This forum gets very little traffic. You may be better asking on the talk-gb mailing list.

I am not sure what you mean by poly format, but I am a little concerned that counties cannot be found. I am fairly sure they are all in OSM.

Can you give some examples of those that are missing?

Cheers Phil

PeterStadler

Member

Registered: 2017-12-06

Posts: 5

Re: Searching for UK subdivisions polygons in poly format

Thank you for your answer,

Poly is one option on the polygons.openstreetmap. Others are WKT, GeoJSON, poly

I have the following lists of counties or regions from Wales, see here:
https://en.wikipedia.org/wiki/Preserved … s_of_Wales

Clwyd
Dyfed
Gwent
Gwyedd
Mid Glamorgan
Powys
South Glamorgan
West Glamorgan

But most of them cannot be found on the page: http://nominatim.openstreetmap.org/search

Sincerely Peter

SomeoneElse

Member

Registered: 2010-10-13

Posts: 1,597

Re: Searching for UK subdivisions polygons in poly format

I suspect that the problem is that Nominatim only deals with current admin divisions, not historic ones.

Also, I'm not sure what you mean by "the polygons.openstreetmap"?

PeterStadler

Member

Registered: 2017-12-06

Posts: 5

Re: Searching for UK subdivisions polygons in poly format

Hello
I meant:
Poly is one option on the http://polygons.openstreetmap.fr/index.py .Others are WKT, GeoJSON, poly

After
http://www.genuki.org.uk/big/Regions/Wales

Clwyd
Dyfed
Gwent
Gwyedd
Mid Glamorgan
Powys
South Glamorgan
West Glamorgan

are the current administrative regions of Wales, aren't they!?

Sincerely Peter

SomeoneElse

Member

Registered: 2010-10-13

Posts: 1,597

Re: Searching for UK subdivisions polygons in poly format

Taking a well-known location in what was formerly Gwent http://www.openstreetmap.org/search?que … 1&layers=H (the Celtic Manor, a.k.a. Colditz to the locals) Nominatim thinks that is "Resort Hotel, The Coldra, Coldra, Newport, Wales, NP18 1HQ, United Kingdom".

The name "Resort Hotel" is I suspect something descriptive that someone has made up, but the rest is correct.  Wales has unitary authorities so there is no Gwent council any more.  Wikipedia has the details at https://en.wikipedia.org/wiki/Gwent_%28county%29 .

The preserved county appears not to be in OSM (see https://taginfo.openstreetmap.org/search?q=Gwent#values ), probably because it doesn't exist any more (although some other historical counties are in OSM)

If you really want the geometries for historical counties you'll probably need to get them from somewhere else but are you sure that's really what you want?

PeterStadler

Member

Registered: 2017-12-06

Posts: 5

Re: Searching for UK subdivisions polygons in poly format

Hello,

Thanks for your answer. But what I really need are administrative regions, which are actual. Where can I find them?

I do not want historical regions at all.

Sincerely Peter

SomeoneElse

Member

Registered: 2010-10-13

Posts: 1,597

Re: Searching for UK subdivisions polygons in poly format

I'd suggest https://wambachers-osm.website/boundaries/ .  You can open up UK, then Wales, and select the boundaries you want.  See also https://help.openstreetmap.org/question … rom-of-osm and https://help.openstreetmap.org/question … 6287#46287 .

Last edited by SomeoneElse (2018-01-12 15:58:11)

SK53

Member

Registered: 2009-01-11

Posts: 697

Re: Searching for UK subdivisions polygons in poly format

You can easily create poly files using the josm plugin; and there used to be one for QGIS too.

trigpoint

Member

Registered: 2015-06-01

Posts: 16

Re: Searching for UK subdivisions polygons in poly format

Hello
I meant:
Poly is one option on the http://polygons.openstreetmap.fr/index.py .Others are WKT, GeoJSON, poly

After
http://www.genuki.org.uk/big/Regions/Wales

Clwyd
Dyfed
Gwent
Gwyedd
Mid Glamorgan
Powys
South Glamorgan
West Glamorgan

are the current administrative regions of Wales, aren't they!?

Sincerely Peter

According to the document you quoted that list is the 1974-2006 list.

The table 'Wales - changes of 1996' indicates for example that Mid Glamorgan was split between Merthyr Tydfil, Rhondda Cynon Taff and Vale of Glamorgan.
The current divisions are the right hand column of that table.

Cheers Phil