Simplify a polygon shape by straightening out jittery lines

Simplify a polygon shape by straightening out jittery lines

simplify(map, tol = 0.01)

Arguments

map	map object as generated by functions such as `process_shape`, `ggplot2::map_data`, or `ggplot2::fortify`
tol	tolerance to use for simplifying the map. Larger tolerances will lead to smaller maps at lower resolutions.

Examples

states05 <- simplify(states, 0.001)
states05 %>% ggplot(aes(x = long, y = lat)) + geom_path(aes(group = group))
states01 <- simplify(states, 0.01)
states01 %>% ggplot(aes(x = long, y = lat)) + geom_path(aes(group = group))