R: create objects of class Line or Lines

Line {sp} | R Documentation

## create objects of class Line or Lines

### Description

create objects of class `Line` or `Lines` from coordinates

### Usage

    Line(coords)
    Lines(slinelist, ID)

### Arguments

`coords` | 2-column numeric matrix with coordinates for a single line
`slinelist` | list with elements of class Line-class
`ID` | a single word unique character identifier, character vector of length one

### Value

`Line` returns an object of class Line-class; `Lines` returns an object of class Lines-class

### See Also

SpatialLines-class

### Examples

    # 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")

[Package sp version 1.4-0 Index]