3 ms·
The edges are segments of great circles, which are the reasonable equivalent to a straight line on the surface of a sphere.
by rspeer 11y ago
The edges are segments of great circles, which are the reasonable equivalent to a straight line on the surface of a sphere.
- teraflop 11y agoOr another way to look at it: if you model the earth as a perfect sphere, there's a one-to-one monotonic relationship between geodesic distance and distance in a straight line through the earth. Points that are equidistant by one metric are also equidistant by the other. So you could get exactly the same diagram by finding the 3D Voronoi diagram of the airports as a collection of points in space, and then taking the intersection of that with the geoid.