[Matplotlib-users] Basemap: plot cubed sphere edges

[Pier G. F. <pie...@cm...>]

Hi,

I'm working with data on the cubed sphere grid
(http://thatsmaths.files.wordpress.com/2012/10/cubed-sphere-grid.jpg).
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:
https://www.dropbox.com/s/79rzhv1buhuk2b8/Desired_cubed_sphere_edges.png

But all I can get using Basemap is this:
https://www.dropbox.com/s/09j62d270znyego/Basemap_cubed_sphere_edges.png
which is definitely not what I would like to do.
This image is produced by the attached script cubed_sphere_edges.py .

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

Any help would be really appreciated.

-- 
Pier Giuseppe Fogli
CMCC - Centro Euro-Mediterraneo sui Cambiamenti Climatici (www.cmcc.it)
Viale Aldo Moro, 44
40127 Bologna
ITALY

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