rsgeo (version 0.1.7)

coord_n: Coordinate Utilities

Description

Utility functions for accessing coordinates from a geometry.

Usage

coord_n(x, n)
n_coords(x)
coord_first(x)
coord_last(x)

Value

an object of class rs_POINT. Whereas n_coords() returns an integer vector of the same length as x.

Arguments

x

an object of class rsgeo

n

the index position of the coordinate

Details

• n_coords returns the total number of coordinates in a geometry

• coord_first() returns the first coordinate in a geometry

• coord_last() returns the last coordinate in a geometry

• coord_n() returns the nth coordinate in a geometry

Examples

lines <- geom_linestring(1:10, 1:10)
n_coords(lines)
coord_first(lines)
coord_last(lines)
coord_n(lines, 5)