Hello,
I am using interactive matplotlib figures inside a PyQT application (
https://github.com/tensionhead/pyboat), and often I want to re-draw lines
upon new user input onto an Axis which also has other elements (generated
by imshow() in my case). For the last years that basically worked like this:
def draw():
# there was already a line drawn
if ax.lines:
ax.lines = []
# (re-)draw
ax.plot(...)
Now (matplotlib 3.5.1) this does not seem to work anymore, as I get an
Attribute error:
AttributeError: can't set attribute 'lines'
When I inspect the ax.lines I formerly got a list holding
`matplotlib.lines.lines2D` objects, now I have a <Axes.ArtistList of 1
lines>. I looked into the API (
https://matplotlib.org/devdocs/api/axes_api.html#other), and what I got
from there is that this is a transitional class and I should use this 'as
it was a tuple already`. I am stuck here now, I tried to `del` the whole
ax.lines attribute or setting it to an empty tuple but nothing worked.
How can I remove a line from an axis without clearing it? Thanks for your
help!
Best,
Gregor
