create objects of class Line or Lines
create objects of class Line
or Lines
from coordinates
Line(coords) Lines(slinelist, ID)
coords
: 2-column numeric matrix with coordinates for a single lineslinelist
: list with elements of class Line-classID
: a single word unique character identifier, character vector of length oneLine
returns an object of class Line-class ; Lines
returns an object of class Lines-class
SpatialLines-class
# from the sp vignette: l1 = cbind(c(1,2,3),c(3,2,2)) l1a = cbind(l1[,1]+.05,l1[,2]+.05) l2 = cbind(c(1,2,3),c(1,1.5,1)) Sl1 = Line(l1) Sl1a = Line(l1a) Sl2 = Line(l2) S1 = Lines(list(Sl1, Sl1a), ID="a") S2 = Lines(list(Sl2), ID="b")