Remove the Perimeter line?

Hi

I want to plot a polar plot over Antarctica using PyNGL.
However, I want the plot to be circular and thus remove the ugly square that is draw around every map plot.
Looking through the NCL documentation I guess this should be done by mpPerimOn = False, but that does not work.
Neither does setting mpPerimLineColor = 'Transparent"
How can this be removed?
My script can be boiled down to:

res = Ngl.Resources() # map resources
res.mpProjection = "Orthographic"
res.mpCenterLatF = -90.
res.mpCenterLonF = -90.
res.mpPerimOn = False
map = Ngl.map(wks,res)

And that nasty Perimeter line keeps being there anyway!

I'm grateful for any help.

Regards
/Joakim

-----------------------------------------------
Joakim Kjellsson
PhD student
Department of Meteorology (MISU)
Bolin Centre for Climate Research
Stockholm University

Web: http://people.su.se/~jokj7135/joakim-misu/

Mail address:
Svante Arrhenius väg 16C
106 91 Stockholm, SWEDEN

Office phone: +46-8-162404
Cell phone: +46-70-795 35 39
------------------------------------------------

_______________________________________________
pyngl-talk mailing list
List instructions, subscriber options, unsubscribe:
http://mailman.ucar.edu/mailman/listinfo/pyngl-talk
Received on Wed Sep 11 14:13:45 2013