This perl library aims to provide as many tools to make it as simple
as possible to calculate distances between geographic points, and
anything that can be derived from that. Currently there is support
for finding the closest locations within a specified distance, to
find the closest number of points to a specified point, and to do
basic point-to-point distance calculations.

Homepage:
https://metacpan.org/release/BLUEFEET/Geo-Distance-0.20
