[R] polygon overlapping

2007-10-17 Thread adrian
Haiyong Xu <[EMAIL PROTECTED]> writes: > Is there any package which can calculate the overlapping area of two > polygons or output the coordinates of the overlapping of two polygons? The function overlap.xypolygon(A,B) in package 'spatstat' calculates the area of overlap between two polygons A an

Re: [R] polygon overlapping

2007-10-17 Thread Duncan Murdoch
On 17/10/2007 2:23 AM, Haiyong Xu wrote: > Hi there, > Is there any package which can calculate the overlapping area of two > polygons or output the coordinates of the overlapping of two polygons? I believe gpclib can do both of those. Duncan Murdoch ___

Re: [R] polygon overlapping

2007-10-16 Thread Haiyong Xu
No. On Oct 16, 2007, at 11:32 PM, Moshe Olshansky wrote: > Are your polygons convex? > > --- Haiyong Xu <[EMAIL PROTECTED]> wrote: > >> Hi there, >> Is there any package which can calculate the >> overlapping area of two >> polygons or output the coordinates of the >> overlapping of two polygons?

Re: [R] polygon overlapping

2007-10-16 Thread Moshe Olshansky
Are your polygons convex? --- Haiyong Xu <[EMAIL PROTECTED]> wrote: > Hi there, > Is there any package which can calculate the > overlapping area of two > polygons or output the coordinates of the > overlapping of two polygons? > > Thanks. > Haiyong > > ___

[R] polygon overlapping

2007-10-16 Thread Haiyong Xu
Hi there, Is there any package which can calculate the overlapping area of two polygons or output the coordinates of the overlapping of two polygons? Thanks. Haiyong __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLE