project.Map {TeachingDemos} | R Documentation |
Apply the mapproject
function from the mapproj
library
to Map objects from the maptools
library.
project.Map(Map, projection = "", parameters = NULL, orientation = c(90, 0, 0))
Map |
A Map object. |
projection |
See mapproject |
parameters |
See mapproject |
orientation |
See mapproject |
This function takes a Map
object and applies mapproject
from the mapproject
library to it.
An object of class Map
with the coordinates transformed.
This is beta level software, there are now better alternatives in the sp or related packages.
Greg Snow greg.snow@imail.org
mapproject
from the mapproj library.
## Not run: library(mapproj) # assumes that the time zone shape files have been downloaded # from: http://openmap.bbn.com/data/shape/timezone/ tz <- read.shape('WRLDTZA') plot(Map2poly(project.Map(tz,'bonne',param=45))) plot(Map2poly(project.Map(tz,'bonne',param=45)), col=rainbow(48)[tz$att.data$OFFSET]) plot(Map2poly(project.Map(tz,'albers',param=c(30,40)))) ## End(Not run)