[ferret_users] pyferret aliasing in jupyter notebooks

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Subject: [ferret_users] pyferret aliasing in jupyter notebooks

From: Pierre Sepulchre <pierre.sepulchre@xxxxxxxxxxxx>

Date: Thu, 28 May 2020 23:10:03 +0200

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Dear all,

I am using pyferret v7.43/python3.6 in jupyter notebooks, within jupyter-lab and with ferretmagic extension, on macOS high sierra.

I realized that sometimes plotting with shade/ led to "aliased" maps, i.e. with unesthetic horizontal lines starting from both sides of the map.

However running the exact same command in a terminal (i.e. not in a notebook) provides a nice plot !

Playing with set window/noantialiasing does not improve much, but I noticed that changing the window aspect in the notebook, either through the use of "%ferret -s X,Y" parameters or with the set window /aspect, would change the location of the horizontal bars.

I would be grateful if someone had an hint to solve this issue.

I provide the examples here :

All the best,

Pierre

CNRS/Laboratoire des Sciences du Climat et de l'Environnement, Gif-sur-Yvette, France
tel : +33 (0) 1 69 08 65 49
What I am working on
twitter: @PierreSepulchre
github: psepulchre