R: Convert points to SpatialLines*

coords2Lines {mapview}

R Documentation

Convert points to SpatialLines*

Description

Create a SpatialLines* object from a Line object or set of point coordinates in one go, i.e. without being required to run through the single steps outlined in SpatialLines.

Usage

## S4 method for signature 'matrix'
coords2Lines(coords, ID, data, match.ID = TRUE, ...)

## S4 method for signature 'Line'
coords2Lines(coords, ID, data, match.ID = TRUE, ...)

Arguments

`coords`	`Line` object or 2-column `numeric matrix` with x and y coordinates.
`ID`	`character`, see `Lines`.
`data`	`data.frame` with data to add to the output `SpatialLines*` object (optional).
`match.ID`	`logical`, see `SpatialLinesDataFrame`.
`...`	Further arguments passed on to `SpatialLines` (i.e., `proj4string`).

Value

If data is missing, a SpatialLines object; else a SpatialLinesDataFrame object.

Examples

library(sp)

coords1 <- cbind(c(2, 4, 4, 1, 2), c(2, 3, 5, 4, 2))
sln1 <- coords2Lines(coords1, ID = "A")

coords2 <- cbind(c(5, 4, 2, 5), c(2, 3, 2, 2))
sln2 <- coords2Lines(coords2, ID = "B")

mapview(sln1)

plot(sln1, col = "grey75")
plot(sln2, col = "grey25", add = TRUE)