Basemap: plot cubed sphere edges


I'm working with data on the cubed sphere grid
Even though the data is interpolated on a regular lat-lon grid
for plotting, I would like to plot the edges of the 6 cube faces
for visual reference.

Moreover I would like this to be independent from the map projection type
and map center lon/lat, as you can see in this image:

But all I can get using Basemap is this:
which is definitely not what I would like to do.
This image is produced by the attached script .

Does anyone have any advice on how to solve this issue?

Any help would be really appreciated. (2.37 KB)


Pier Giuseppe Fogli
CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici (
Viale Aldo Moro, 44
40127 Bologna

Phone: +39 051 3782606
FAX: +39 051 3782655
e-mail: piergiuseppe DOT fogli AT cmcc DOT it
skype: beppecmcc