altos: Add ao_distance.c to compute cartesian distances on the globe
authorKeith Packard <keithp@keithp.com>
Fri, 6 Jun 2014 00:10:28 +0000 (17:10 -0700)
committerKeith Packard <keithp@keithp.com>
Fri, 6 Jun 2014 00:10:28 +0000 (17:10 -0700)
This is not a great circle distance, but should be good enough for
points reasonably close together

Signed-off-by: Keith Packard <keithp@keithp.com>

No differences found