On Thu, 29 Mar 2007, Yong Li wrote:
> Dear all,
>
> The following is the code I try to build grid from polygons, but was
> hammered by the error in the subject. Any idea helps me.
sessionInfo() ?
What is the version of your maptools package - the function you are
looking for has only been pres
Dear all,
The following is the code I try to build grid from polygons, but was
hammered by the error in the subject. Any idea helps me.
Yong
setwd("d:/Rcode/0_Zone")
library(maptools)
xx <- readShapePoly("Newshape.shp", IDvar="ID",
proj4string=CRS("+proj=tmerc
