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Polygon selector with useblit=True - polygon disappears #17487
Description
When I use this example: https://matplotlib.org/3.1.3/gallery/widgets/polygon_selector_demo.html
and want to use blitting (see line below), the selection polygon dissapears when polygon is finalized.
self.poly = PolygonSelector(ax, self.onselect, useblit=True)**Matplotlib version: 3.1.2 **
- Operating system: Ubuntu 16.04
- Matplotlib version: 3.1.2 (from pipy.org)
- Matplotlib backend (`Qt5Agg'):
- Python version: 3.7.6
- Other libraries: PySide2 - 5.14.2
Activity
QuLogic commentedon May 22, 2020
Possibly somewhat related to #17476, @anntzer?
anntzer commentedon May 22, 2020
Probably the same kind of problem, but
activeis not getting toggled and it's not immediately obvious to me where the background update is missing.QuLogic commentedon Oct 2, 2020
This is also fixed by #17480.
[-]Polygon selector with useblit=True - polygon dissapears[/-][+]Polygon selector with useblit=True - polygon disappears[/+]