Re: [R-sig-Geo] Shared polygon border

2008-10-14 Thread Roger Bivand
On Tue, 14 Oct 2008, Jonathan Boyd Thayn wrote: I appreciate the "simple" explanation, which does make since. I am still unable, however, to access the "coords" matrices inside of the SpatialPolyons object. I'm sure that there is a simple way to do this, but I can't figure it out. If I open a

Re: [R-sig-Geo] Shared polygon border

2008-10-14 Thread Jonathan Boyd Thayn
I appreciate the "simple" explanation, which does make since. I am still unable, however, to access the "coords" matrices inside of the SpatialPolyons object. I'm sure that there is a simple way to do this, but I can't figure it out. If I open a shapefile using readOGR() what code to I u

Re: [R-sig-Geo] Shared polygon border

2008-10-13 Thread Roger Bivand
On Mon, 13 Oct 2008, Jonathan Boyd Thayn wrote: I want to know the length of the shared border of neighboring polygons in a shapefile. I can use the slots () function to access the the "polyons" slot of the file, but I can't seem to create a list of the node coordinates of the polyon. Is there

[R-sig-Geo] Shared polygon border

2008-10-13 Thread Jonathan Boyd Thayn
I want to know the length of the shared border of neighboring polygons in a shapefile. I can use the slots () function to access the the "polyons" slot of the file, but I can't seem to create a list of the node coordinates of the polyon. Is there a way to do this easily? Thanks. Jonath