occasional graphical corruption when manipulating plots using the zoom and pan widgets

Riproduci il problema con un grafico grande in JupyterLab 4.2.3 usando ipympl 0.9.4, quindi manipolalo con i controlli Zoom, Pan, Back, Forward e Home. Confronta il canvas e gli assi dopo un ridisegno non riuscito e verifica il risultato con il pulsante Download plot; il lavoro è completato quando non rimangono più pixel corrotti dopo le interazioni con il widget.

Describe the issue

Manipulating fairly large (~M points) plots,. found occasionally that the redraw would fail, then would leave old pixels in place.

Using the 'Back to previous view' / 'Forward to next view' appears to fix the corruption, otherwise it just sticks around until the figure is redrawn by re-running the cell producing it. I.E., once it appears, hitting the 'home' button does not clear it.

Affects both the plot as well as the axes, with the axes becoming unreadable. Saving the corrupted pixels using the 'Download plot' button works - in that the saved png includes the pixel corruption.

Versions

 3.12.3 (main, Jul 15 2024, 15:34:06) [GCC 12.2.0]
ipympl version: 0.9.4
Selected Jupyter core packages...
IPython          : 8.26.0
ipykernel        : 6.29.5
ipywidgets       : 8.1.5
jupyter_client   : 8.6.2
jupyter_core     : 5.7.2
jupyter_server   : 2.14.2
jupyterlab       : 4.2.3
nbclient         : 0.10.0
nbconvert        : 7.16.4
nbformat         : 5.10.4
notebook         : not installed
qtconsole        : not installed
traitlets        : 5.14.3
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Jupyter command `jupyter-nbextension` not found.

I assume you meant || jupyter labextension list not &&.

JupyterLab v4.2.3
/home/rgd2/.pyenv/versions/3.12.3/share/jupyter/labextensions
        jupyterlab_pygments v0.3.0 enabled OK (python, jupyterlab_pygments)
        jupyter-matplotlib v0.11.4 enabled OK
        @jupyter-widgets/jupyterlab-manager v5.0.13 enabled OK (python, jupyterlab_widgets)

Other labextensions (built into JupyterLab)
   app dir: /home/rgd2/.pyenv/versions/3.12.3/share/jupyter/lab