length: Calculate LineString Length

In rsgeo: An Interface to Rust's 'geo' Library

Calculate LineString Length

Description

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

Details

Notes

• Vicenty, Geodesic, 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.

Value

A numeric vector

Examples

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

ln <- geom_linestring(x, y)

length_euclidean(ln)
length_geodesic(ln)
length_vincenty(ln)
length_haversine(ln)

rsgeo documentation built on Sept. 9, 2023, 1:07 a.m.