Implementing Intersection between two Geodesics

[rfalford12]

trafficstars

Compute the intersection between two line segments (geodesics).

[anurag1paul]

Are there any example implementations for this?

[dsmiley]

The "geodesic" (surface of a sphere) work done a couple years ago was incomplete. However, over the past year a little-known "geo3d" module in Apache Lucene has appeared that does this. I think it makes sense to use that. Alternatively, see s2-geometry.