sfg_linestring: sfg linestring

In sfheaders: Converts Between R Objects and Simple Feature Objects

sfg linestring

Description

constructs sfg LINESTRING object

Usage

sfg_linestring(obj, x = NULL, y = NULL, z = NULL, m = NULL)

Arguments

obj	matrix or data.frame
x	x geometry column
y	y geometry column
z	z geometry column
m	m geometry column

Value

sfg object of LINESTRING geometry

Examples

sfg_linestring( 1:2 )
sfg_linestring( 1:3 )
sfg_linestring( 1:4 )

sfg_linestring( matrix( 1:24, ncol = 2 ) )
sfg_linestring( matrix( 1:24, ncol = 3 ) )
sfg_linestring( matrix( 1:24, ncol = 4 ) )

sfg_linestring( matrix( 1:24, ncol = 4 ), x = 3, y = 2, z = 3)

sfg_linestring( data.frame( x = 1:10, y = 11:20 ) )
sfg_linestring( data.frame( x = 1:10, y = 11:20, z = 21:30 ) )
sfg_linestring( data.frame( x = 1:10, y = 11:20, z = 21:30 ), x = "x", y = "z" )

sfheaders documentation built on May 29, 2024, 1:36 a.m.