sfc_multipoint: sfc MULTIPOINT

In sfheaders: Converts Between R Objects and Simple Feature Objects

sfc MULTIPOINT

Description

constructs sfc of MULTIPOINT objects

Usage

sfc_multipoint(
  obj,
  x = NULL,
  y = NULL,
  z = NULL,
  m = NULL,
  multipoint_id = NULL
)

Arguments

obj	sorted matrix or data.frame
x	x geometry column
y	y geometry column
z	z geometry column
m	m geometry column
multipoint_id	column of ids for multipoints

Value

sfc object of MULTIPOINT geometries

notes

sfheaders functions do not perform any validity checks on the geometries. Nor do they set Coordinate Reference Systems, EPSG, PROJ4 or precision attributes.

The data.frame and matrices you send into the sfheader functions must be ordered.

Examples

x <- matrix( c(1:4), ncol = 2 )
sfc_multipoint( x )

x <- data.frame( id = 1:2, x = 1:2, y = 2:1 )
sfc_multipoint( x )
sfc_multipoint( x, x = "x", y = "y" )
sfc_multipoint( x, x = "y", y = "x" )
sfc_multipoint( x, multipoint_id = "id", x = "x", y = "y")

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