Hmm.. I keep looking at your first ( https://www.gibney.org/images/size02/-1_-1_to_1_1.jpg https://www.gibney.org/images/size02/-1_-1_to_1_1.jpg ) image, and I

Hmm.. I keep looking at your first ( https://www.gibney.org/images/size02/-1_-1_to_1_1.jpg https://www.gibney.org/images/size02/-1_-1_to_1_1.jpg ) image, and I swear it looks 3 dimensional positively curved space, with vertices intersecting in depth. Just that since it's a picture, its being compressed from 3d->2d. Even though the lines are curved, I'm parsing them as straight.. somehow. Perhaps this is the wrong projection, and maybe it needs to be mapped on a sphere using lat/lon/alt (parametric)? That would also explain the infinite border asymptotes, and going from 2d mercator->spherical would modify those.