Can Qhull compute the unbounded rays of the Voronoi diagram?
Use ‘Fo’ to compute the separating hyperplanes for unbounded Voronoi regions. The corresponding ray goes to infinity from the Voronoi vertices. If you enclose the input sites in a large enough box, the outermost bounded regions will represent the unbounded regions of the original points. If you do not box the input sites, you can identify the unbounded regions. They list ‘0’ as a vertex. Vertex 0 represents “infinity”. Each unbounded ray includes vertex 0 in option ‘Fv. See Voronoi graphics and Voronoi notes.
