Re: FigureCanvasWxAgg not redrawn with wxpython 4.0.1 on Ubuntu 17.10

On 9/5/2018 3:34 AM, Matthew Newville wrote:
> Is there a problem I am not seeing that others are seeing?
> Is there a better way to draw a rubber-band box on top of a
> matplotlib canvas?

These platforms made problems, IIRC:

Wayland with wxPython 4 (it was working with Classic where wx was using 
X compatibility mode):
Overlays did not work.
For a screen update, a Refresh was needed as the direct drawing using 
ClientDC did not update the screen.

Mac OS with wxPython 4 (not sure about Classic):
SetLogicalFunction did not work.
Overlays have a scaling problem when using Hi DPI displays. The Overlay 
issue is only seen when drawing semi-transparent on the Overlay.


Well, maybe there would have been a way to make ClientDC work, but it 
makes sense to use |BufferedPaintDC| anyway.

Regards,

Dietmar

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