mpl_toolkits.mplot3d.art3d.norm_text_angle(a) [source]
[Deprecated] Return the given angle normalized to -90 < a <= 90 degrees.
Deprecated since version 3.1.
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https://matplotlib.org/3.1.1/api/_as_gen/mpl_toolkits.mplot3d.art3d.norm_text_angle.html