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- Path: sparky!uunet!pipex!unipalm!uknet!yorkohm!pete
- From: pete@ohm.york.ac.uk (Pete French)
- Newsgroups: uk.misc
- Subject: Re: Ordnance Survery map data
- Message-ID: <1993Jan26.123759.8143@ohm.york.ac.uk>
- Date: 26 Jan 93 12:37:59 GMT
- References: <727894180snx@algol.demon.co.uk>
- Organization: Electronics Department, University of York, UK
- Lines: 24
-
- From article <727894180snx@algol.demon.co.uk>, by bruce@algol.demon.co.uk (Bruce Mardle):
- > There's a 200 pound 1:1,000,000 digital map of the world but I haven't heard
- > height data being mentioned in connection with it.
-
- Mmmm... have you tried military suppliers ? They have digital map data of
- the UK accurate to 1m height with spot heights every 100m. I have this here
- for a project and I know that its lisenceable because we sold a system to
- the home office containing it, and many more systems containing the data
- are to be sold soon. It comes in 1 degree square tiles on 7 half inch tape
- reels. I converted mine to the OS grid, filled in the blank bits to make
- a 9000x13000 point grid over the British Isles which takes up about 200MB.
-
- Putting social data on top prooved a problem - we used the Bartholomews map
- data, but this is not very accurate in places - roads can be up to 100-200
- meters off their actual positions on the ground. Its not really noticable
- unless you start looking at the coastline where you see roads going into the
- sea.
-
- -bat.
-
- --
- -Pete French. (the -bat. ) -+ Are you in the militia ?
- Adaptive Systems Engineering |
- +- Tuktusiuriagatigitqingnapinngitkyptinnga!
-