Le 23/12/2011 02:41, Rolf Turner a écrit :

>

> 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

Thanks for this info. Now I realize that my question was wrongly

formulated. A tesselation based on spatial points was enough for what I

wanted to do.

Best,

Patrick

>

> 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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