[postgis-users] Voronoi tessellation

[Puneet Kishor]

Derek (and others),

I've kinda, sorta got the voronoi() function working, but I have a related query for now. If I run the function on "n" points, shouldn't I get "n" polygons?

I have a table with 1597 points, but when I ran the function, I got 1595 polys, and am wondering what the heck happened to two of them?


On Mar 5, 2012, at 10:55 PM, Derek Jones wrote:

> Here is what I have that AFAIR works fine. It's been a while since I used the code - I may be digging it out again soon though :-)
> 
> -------------
> 
> 
> 
> 
> create type voronoi as (id integer, polygon geometry);
> 
> create or replace function voronoi(text,text,text) returns setof voronoi as '
>    library(deldir)
> 
>    # select the point x/y coordinates into a data frame...
> 
>> ..



--
Puneet Kishor