SpatialRings
or SpatialRingsDataFrame
from
lists of Srings
objects and data.frame
sSring(coords, proj4string=CRS(as.character(NA)), hole=as.logical(NA))
Srings(srl, ID)
SpatialRings(Srl, pO = 1:length(Srl))
SpatialRingsDataFrame(Sr, data)
data.frame
; the number of rows in data
should equal the number of Srings-class objects in Sr
Sring
returns an object of class Sring
;
Srings
returns an object of class Srings
;
SpatialRings
returns object of class SpatialRings
;
SpatialRingsDataFrame
returns object of class SpatialRingsDataFrame