This uses the haversine formula (by default) to calculate
the great-circle distance between two points, i.e., the shortest distance
over the earth's surface.
Usage
point_distance(a, b, ...)
Value
units object giving the distance
Arguments
a
lon, lat coordinate of point 1
b
lon, lat coordinate of point 2
...
parameters passed to tectonicr::dist_greatcircle()