[R-sig-Geo] help to creating a points subset with R: Cut points shapefaile with a buffer polygon shapefile

Paul Hiemstra p.hiemstra at geo.uu.nl
Wed Feb 25 23:24:16 CET 2009


Hi,

Have you tried the overlay command in the sp package?

cheers,
Paul

Alessandro schreef:
> Hi All Researcher, 
>
>  
>
> Thanks for help and suggestions. 
>
>  
>
> I have a points shapefile (soil) with one column [H] and a circular buffer
> polygons (plots) with a column [ID identify. Ex: 1,2,3 etc etc]. I wish to
> clip the points shapefile with the buffer and obtain a new points shape file
> (only the points inside the buffer) with two columns [ID of buffer and H).
>
>  
>
> I have with maptools problem with memory because every time my R crash-down.
>
>
>  
>
>  Any suggestions would be appreciated. 
>
>  
>
> Thanks again
>
>  
>
> Ale
>
>
> 	[[alternative HTML version deleted]]
>
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-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
Heidelberglaan 2
P.O. Box 80.115
3508 TC Utrecht
Phone:  +3130 274 3113 Mon-Tue
Phone:  +3130 253 5773 Wed-Fri
http://intamap.geo.uu.nl/~paul



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