draw_world function

Draw a map of the world with country boundaries.

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

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).

Examples

## Not run:

library(ggplot2)
draw_world(g = ggplot())
## End(Not run)

See Also

the help file for the dataset worldmap