I'm guessing he means stuff like voronoi tesselation, which isn't limited to 3-space. Look at the books of Hanan Samet for more on this stuff: http://www.cs.umd

I'm guessing he means stuff like voronoi tesselation, which isn't limited to 3-space. Look at the books of Hanan Samet for more on this stuff: http://www.cs.umd.edu/~hjs/ http://www.cs.umd.edu/~hjs/