Geo-Indexing - Richard Parker

Indexing and accessing points on the Earth's Surface

Hilbert Curve • But the space-filling curve due to David Hilbert is “better”. . . • Points near on the Hilbert curve are nearer on the earth than with the Z-curve . . . • Points near on the earth are in fewer clumps on the Hilbert curve. • I would like a mathematical definition of “better” but haven't found one yet :(