mjb/altos/src/kernel/ao_distance.h, branch debian/1.6.1-1AltOS - the operating system for Altus Metrum products
https://git.ethernal.org/mjb/altos/atom?h=debian%2F1.6.1-12014-06-06T00:10:28+00:00altos: Add ao_distance.c to compute cartesian distances on the globe2014-06-06T00:10:28+00:00Keith Packardkeithp@keithp.com2014-06-06T00:10:28+00:00urn:sha1:6e152dd5c0786a650aed8f0c09babdc93895bff1
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>