[R-sig-Geo] Donut holes

[O'Hanlon, Simon J]

rgeos::gDifference should do what you are after.

HTH,

Simon

--------------------------------
Simon O'Hanlon, BSc MSc
Department of Infectious Disease Epidemiology
Imperial College London
St. Mary's Hospital
London
W2 1PG
________________________________________
From: r-sig-geo-bounces at r-project.org [r-sig-geo-bounces at r-project.org] on behalf of Tim [timbean at gmail.com]
Sent: 25 July 2012 21:11
To: r-sig-geo at r-project.org
Subject: [R-sig-Geo] Donut holes

Can somebody suggest a method for subtracting one SpatialPolygon* object from
another, so that I'm left with a polygon with a donut hole? I can't seem to
find one. Thanks.



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