[aprssig] Re: TIGER maps what-s the problem?
brent.hildebrand at gmail.com
Mon Jun 12 21:15:20 CDT 2006
> 2) Provide on the map display, a range scale or some other
> legend that gives the user a clue as to the scale (in miles
> or Kilometers) he is seeing. The preferred system for this
> is called RANGE SCALE and it means the approximate distance
> from the center of the view to the closest edge. In other
> words, the largest circular range about the center point
> that would fit on this map view. This lets people with
> totally different systems still refer to the same "area"
> by only its CENTER and RANGE.
The "APRS Viewpoint" test program provides the Range scale you specify
above. So a Range of "10 Miles" means that from the center of the
map, to the nearest edge, is 10 miles.
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