Internal deldir functions
Construct the Delaunay triangulation and the Dirichlet (or Voronoi) tessellation of a planar point set.
Produce a plot of the Delaunay triangulation and Dirichlet (Voronoi) tesselation of a planar point set, as constructed by the function deldir.
Plot Dirchlet/Voronoi tiles
Create a list of tiles in a tessellation.