ProjectGC county polygons

Question

I have a small web page, designed primarily for use in the UK, on a mobile phone, that performs co-ordinate conversion. It is quite widely used.

https://www.amberel.com/cache/coords.htm  

One of the things I get asked for most frequently is support for ProjectGC counties. Currently it supports UK counties as they were in 1974, because this is the only polygon dataset I was able to obtain. These counties are the same as used by GSAK, but not the same as ProjectGC.

I am very willing to add ProjectGC county support if I am able to get the relevant polygon data. Is anyone able to assist with this please?

Rgds, Andy

Answer 1

Project-GC uses osm-boundaries as the source, but the UK is sort of a special case as it's built with many special rules and unions of different kinds etc for regions and the counties. All is based in the database 2021-04-12 (requires premium membership on OSMB to access, but it's free to get that right now) and polygons of admin level six tho. If you need more info, or is asking about the actual data and not interested in re-building them yourself, I would suggest reaching out to support (orange button on top of pages at main site) instead.

Comments

Thanks, a few years ago I did download the OS data but was not at all obvious to me which bits PGC had picked out. Also a week ago I wrote a support query, but I'm not sure if it actually got sent, when I pressed the send button nothing seemed to happen. I didn't like to pester them so didn't try to send it again, maybe I will try again.
Rgds, Andy