Re: [R-sig-Geo] Assistance converting SPDF polygons to holes

2009-02-12 Thread Roger Bivand
On Thu, 12 Feb 2009, Don MacQueen wrote: I feel a bit lazy asking for help, as I know I can do this -- but since I don't work with spatial polygons frequently, I find assembling objects consisting of nested polygons to be a bit challenging. It can be done, so this approach from the other side

[R-sig-Geo] Assistance converting SPDF polygons to holes

2009-02-12 Thread Don MacQueen
I feel a bit lazy asking for help, as I know I can do this -- but since I don't work with spatial polygons frequently, I find assembling objects consisting of nested polygons to be a bit challenging. I have a Spatial Polygons Data Frame object named "s2poly" (read in from a polygons shapefile