project4: Transform spatial coordinates

In Rproj4: Rproj4

Description

R bridge to PROJ.4 library

Usage

project4(xy, from, to)

Arguments

xy	matrix with two columns
from	character. PROJ.4 formatted coordinate reference system description
to	character. PROJ.4 formatted coordinate reference system description

Value

matrix

Author(s)

Robert J Hijmans

Examples

xy <- cbind(c(15,-16), c(6, 25))
pfrom <- "+proj=longlat +ellps=clrk66"
pto <- "+proj=merc +ellps=clrk66 +lat_ts=33"
p <- project4(xy, pfrom, pto)
p

project4(p, pto, pfrom)

Rproj4 documentation built on May 2, 2019, 5:01 p.m.