[pyngl-talk] Problems with plotting in Jupyter notebook cells - partial solution
senesi at posteo.net
Sat Nov 30 06:28:02 MST 2019
I am a newcomer to pyngl-talk (and PyNGL) but I read the July 2019
thread on that subject (PyNGL in Jupyter notebooks). [However, I was
not able to fit the present message i the thread ]
I am in the case of Mark England, namely getting error messages such as
"/Only one instance of ErrorClass is//supported" /when trying to rerun
some code cells producing graphics.
What I discovered is that :
1. avoiding the call to Ngl.end() seems enough to avoid the problem
2. for the case of a png type workstation, there is no need to call
delete_wks() in order to get a well-closed png file; calling frame()
is enough (and necessary); this is compatible with the description
of delete_wks, which should be used to cope with th elimit in the
numbers of opened workstation.
3. for the case of an x11 workstation, the example provided by Karin is
not working; at the best, a small par of one latitude circle is
drawn (after a draw() and a frame() - a delete_wks() just closes the
By the way, I have a more general question : where can I find a
description of what is not available in pyNGL (w.r.t. full Ncl) ?
Thanks if you can help on bullet 3 and last question
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