polylist2list {GeoXp} | R Documentation |
The function `polylist2list' extracts the vertices of the polygons from a `polylist' object, seperating polygons from each other by 3 rows of NaN.
polylist2list(data)
data |
A `polylist' object |
The user can then represent the coordinates of sites of a `polylist' object as background map, using the option `carte' included in all interactive functions of GeoXp.
It returns a matrix of numeric values with 2 columns ($x$ and $y$ coordinates of the vertices of the polygons) where polygons are seperated from each other by 3 rows of NaN.
Thibault Laurent
Bivand R. (2008), `The spdep package', http://cran.r-project.org/doc/packages/spdep.pdf.
data(eire.polys) eire.contours<-polylist2list(eire.polys)