matplotlib.artist.Artist.is_transform_set
- 
Artist.is_transform_set(self)[source]
- 
Return whether the Artist has an explicitly set transform. This is True after set_transformhas been called.
    © 2012–2018 Matplotlib Development Team. All rights reserved.
Licensed under the Matplotlib License Agreement.
    https://matplotlib.org/3.3.3/api/_as_gen/matplotlib.artist.Artist.is_transform_set.html