NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lewis and Clark, and River Navigation
From: George Huxtable
Date: 2003 Dec 10, 21:28 +0000
From: George Huxtable
Date: 2003 Dec 10, 21:28 +0000
Yesterday, I asked for algorithms for translating, in both directions, between UTM (Universal Transverse Mercator) zone 15, and ellipsoidal lat and long, to within, say, a quarter-mile. For my purposes, more precise definitions of datum, such as WGS84, are quite unnecessary, but would do no harm. I'm not bothered about altitudes, just the conversion of the x and y coordinates Thanks to Mark Bernstein, who has kindly drawn my attention to a couple of web sites which offer to make such a calculation for me. However, these are both Microsoft-based and will not be runnable on my old Mac. Anyway, what I really need is an algorithm for making such a calculation for myself, rather than a website to do it for me. So my request for help still stands, if anyone is able to meet it. George. ================================================================ contact George Huxtable by email at george@huxtable.u-net.com, by phone at 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK. ================================================================