Hi Chiu
If you're looking for Voronoi ... here some feedback: we compared TRIANGULATOR as
suggested by Roeland van der Spek and VM as suggested by James Harvie on a dataset
with over 200'000 points with the result that to my surprise TRIANGULATOR did the job
perfectly and incredibly fast and
Dear mr. Luk,
We have developed two MapInfo plugins that might help you out!
The first tool is HOTSPOT. Hotspot accepts pointdata and returns the a
thematic grid where the colors indicate a measurement for point density.
This tool was originally developed for the Amsterdam Police Department
Chiu,
Vertical Mapper has a natural neighbour analysis tool which generates a
voronoi diagram (theissen polygons) from which density can be measured. The
measure of density is based upon the area of each point's polygon where a
small area indicates high density and a large area indicates lower
