[R-sig-Geo] computing polygons from a centroid point distribution

[Rolf Turner]

You should be aware that the ***centroid*** of a Dirichlet/Voronoi tile is
***NOT*** in general the point determining that tile.

I do not believe that your original question, as posed (in terms
of centroids) actually has a solution.

     cheers,

         Rolf Turner

On 20/12/11 21:55, Patrick Giraudoux wrote:
> Le 20/12/2011 07:53, Ben Madin a écrit :
>> Patrick,
>>
>> On 20/12/2011, at 2:40 PM, Patrick Giraudoux wrote:
>>
>>> Given a spatial point distribution in a two dimensional space, I 
>>> wonder if there is a function in R that could make a polygon 
>>> partition of the two dimensional space, with each point as centroid 
>>> of each polygon ?
>>>
>>> Any suggestion about package(s) and function(s), if any, welcome,
>>> library(deldir)
>>> ?deldir
>> might be what you are after?
>>
>> cheers
>>
>> Ben
>>
>>
>
> Yes ! exactly what I needed. Missed that it could have been properly 
> called "tesselation", rather than to use winding explanations...
>
> Many thanks,
>
> Patrick
>
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