Why does coord_map produce a weird output?

Question

I\'m trying to draw a world map using ggplot. My code is in my gist file. The output is correct when I don\'t use coord_map but very strange when I use

Answer 1

I'm sure that is quite late but the same problem is still happening in ggplot.

If you're trying to zoom-in use the following approach.

ggplot()+...+xlim(c(-100, -25))+ ylim(c(-60, 20))

Good luck!