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Old 11th April 2007 | 20:31
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Vee One...Rotate

Super-Friendly Aviator
 
Joined: Jun 2004
Posts: 424
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From: Reigate, UK
I fear it may involve spherical trigonometry...at least to get to a nice, user-friendly formula!

Ah, here we go. A quick Google came up with this:-

http://www.movable-type.co.uk/scripts/LatLong.html

It all looks pretty character-building...

V1R
Vee One...Rotate is offline