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View Full Version : Plea to UK arch-vizzers: Crown Ordinance Surveys ?



archijam
11-13-2008, 02:08 AM
So I have a digital (bitmap) version of a crown ordinance survey (thanks to the wonderful people at Her Majesty's Stationery Office (this is no joke, by the way)).

It is of an area north of Oxford, and I am trying to reconstruct the landscape, vegetation structures, etc etc.

The contours seem REALLY steep - 70 metres height difference just within the map I am looking at. I don't remember Oxford being so hilly.

Questions:

a) Is it possible it is in feet instead of metres?

b) what scale would the reference grid usually be?

See attached piece.

Thanks!

Matt
11-13-2008, 02:15 AM
UK maps are _usually_ in metres, but that one looks old for some reason, so _could_ be in feet. Scale totally depends on the map.

Did you get it from here?

http://www.ordnancesurvey.co.uk

JBT27
11-13-2008, 02:17 AM
OS maps have used metres for contours for some years I think.

The south is not my stamping ground so I can't comment on the local topo, I'm sorry.

Julian.

Matt
11-13-2008, 02:22 AM
This might help too:

http://www.earthtools.org/

Have contours over Google maps.

archijam
11-13-2008, 02:24 AM
Thanks guys -

Matt - no, I poached it from here:
http://www.magic.gov.uk/

Thanks for the link, at least I know what the grid means :)

It must indeed be in metres, I will crossreference with google earth and see if I can get it further - thanks!

I'll post my progress if it gets interesting ... :thumbsup:

ps. - cheers! - great link!