Re: Garmin Etrex Legend USA/UK

From: ah (anonymous_at_discussions.microsoft.com)
Date: 01/28/05 

Date: Fri, 28 Jan 2005 17:49:50 -0000

"Chris Malcolm" <cam@holyrood.ed.ac.uk> wrote in message
news:ctdrta$c8v$1@scotsman.ed.ac.uk...
> You can *very* considerably reduce the number of points needed if you
> omit those turning points where there is either no choice (you just
> follow the path) or where the choice is obvious given the heading to
> the next point. For example, if you were following a zig-zag route
> through a lot of city blocks in a general diagonal direction you only
> need one point, the destination, because each local zig and zag is
> then an obvious choice of taking the turning which points you closest
> to the destination heading.
>
> The mistake most people make in plotting GPS routes is to assume that
> the route is going to be followed by a blind man, i.e., someone who
> can only see the GPS screen and nothing else.

I have no way of knowing if the choice will be obvious or not on the map,
without going on site, because I do not walk in cities but in the
countryside and sometimes the footpaths exist on the maps and are cut on the
field. And I am planning on preparing my walks so that I am guided by the
GPS, although I always have a map and compass when I hike. 

-- 
ah

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