Re: FigureCanvasWxAgg not redrawn with wxpython 4.0.1 on Ubuntu 17.10

Hi Dietmar,

On Thursday, February 8, 2018 at 7:54:57 PM UTC+1, Dietmar Schwertberger 
wrote:
>
> Unfortunately I don't have a VM with Ubuntu 17. 

Is this the most recent version with Wayland instead of X? 
>
 Correct, with 17.10 Ubuntu started shipping Wayland instead of X by 
default.


If you change your timer to call not only self.canvas.draw, but also 
> self.Refresh(), would it work then? 
>
Yes.
Calling only self.canvas.draw or only self.Refresh does not work, but 
calling both works.


When you hide and show the window, will it redraw with the old image or 
> will it then show the new one? 
>
Any modification of the window works (a part from a simple drag): minimize, 
maximize, resize all will show the new image.


When calling the draw() method of the canvas, it will use wx.ClientDC to 
> update the wx Window content. 
> Refresh() on the other hand would use the normal EVT_PAINT handler with 
> a wx.PaintDC. 
> Recently Robin has already expressed concerns that the ClientDC could 
> cause problems on more modern desktop architectures. 
>
 So you think I should always call Refresh on the whole frame when I update 
the plot? Some of my plots will update several times per second, would this 
slow the gui down?

Thanks a lot!

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