Yes. Essentially this means construct the Voronoi tesellation for all points and for each post code, use the union of the regions for each point in that post code. You will not necessarily have convex hulls for each post-code, but you will have hulls and will almost certainly have a single hull for each post code.
On Thu, Aug 30, 2012 at 5:09 AM, Dawid Weiss <[email protected]>wrote: > > My original question was based on the thought that I could create a hull > from the known points in each postal code and use those hulls as the sites > in a Voronoi. > > This seems to make sense since you'll be effectively creating a convex > polygon around each point for which you know the postal code. So if > the original location of postal codes follows contiguous patterns then > a simple algorithm much like coloring should yield groups of polygons > with the same postal code. Whether this would look nice and > eye-pleasing is another question ;) > > D. >
