Two possibilities
1.) Coincident points as was suggested
2.) An incomplete exterior polygon perhaps?
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Puneet Kishor wrote:
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
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