[R-sig-Geo] polygon buffers?

[Tim Keitt]

Hi Peter,

I've been doing this in postgis. Once you get used to it, its not too
difficult. Load data with shp2pgsql (or use rgdal + RODBC or similar
if you want to stay in R) and then create a new table to hold the
results. After that you can do "insert into restab select
buffer(the_geom, dist) from sourcetab" (that's from memory, so check
the postgis docs).

THK

On 9/2/07, Peter Adler <peter.adler at usu.edu> wrote:
> Dear R gurus,
>
> I am very excited about all the spatials tools in R because they have
> almost liberated me from ESRI products. One of the last things I have
> yet to figure out how to do in R is to create buffers around polygons
> (or just expand polygons). I searched the R-sig-geo archives (using
> Google) for "polygon buffer" and "transform polygon" but haven't found
> anything to get me started. Thanks in advance for your ideas,
>
> Peter
>
> --
> Peter Adler
> Department of Wildland Resources
> 5230 Old Main Hill
> Utah State University
> Logan, UT 84322
> tel: (435) 797-1021 / email: peter.adler at usu.edu
>
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-- 
Timothy H. Keitt, University of Texas at Austin
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