Calculate LineString Length — length_euclidean • rsgeo

For a given LineString or MultiLineString geometry, calculate its length. Other geometries will return a value of NA.

Usage

length_euclidean(x)

length_geodesic(x)

length_vincenty(x)

length_haversine(x)

Arguments

x: an object of class rsgeo

Value

A numeric vector

Details

Notes

Vicenty, Geodeisc, and Haversine methods will return in units of meters.
Geodesic length will always converge and is more accurate than the Vicenty methods.
Haversine uses a mean earth radius of 6371.088 km.

See geo docs for more details.

Examples

set.seed(0)
y <- runif(25, -5, 5)
x <- 1:25

ln <- geom_linestring(x, y)

length_euclidean(ln)
#> [1] 91.41732
length_geodesic(ln)
#> [1] 10114260
length_vincenty(ln)
#> [1] 10114260
length_haversine(ln)
#> [1] 10164090