Draw a map of the world with country boundaries.

Layers a ggplot2 map of the world over the current ggplot2 object.

Usage

draw_world(g = ggplot() + theme_bw() + xlab("") + ylab(""), inc_border = TRUE)

Arguments

g

initial ggplot object

inc_border

flag indicating whether a map border should be drawn or not; see details.

Details

This function uses ggplot2::map_data() in order to create a world map. Since, by default, this creates lines crossing the world at the (-180,180) longitude boundary, the function .homogenise_maps() is used to split the polygons at this boundary into two. If inc_border is TRUE, then a border is drawn around the lon-lat space; this option is most useful for projections that do not yield rectangular plots (e.g., the sinusoidal global projection).

See also

the help file for the dataset worldmap

Examples

if (FALSE) { # \dontrun{
library(ggplot2)
draw_world(g = ggplot())} # }