On Wed 25 Sep, Lev Bishop wrote: <marvellous treatise on the joys of geodetics and co-ordinate conversion> > PS: I'm not trying to sound authoritative on this subject. jesus! What do you sound like when you _are_ tyring to sound authoritative? :-) Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://www.chaos.org.uk/~wookey/