Day/night terminator

[ctjacobs]

It would be nice to have a day/night terminator available in Cartopy, like the one in Basemap: https://github.com/matplotlib/basemap/blob/master/examples/daynight.py

Are there any plans to port this across?

[QuLogic]

It's not builtin, but there's an example of how to do it in the Aurora example.

[ctjacobs]

Thank you, that's very helpful.