[Octave-bug-tracker] [bug #55614] axis equal, qt graphics toolkit

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?55614>

                 Summary: axis equal, qt graphics toolkit
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Thu 31 Jan 2019 08:16:54 AM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: nicodemi
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.1
        Operating System: GNU/Linux

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Details:

Hello, this is an unexpected behaviour.
I have seen other similar problems with axis equal, but I am not sure it is
related.


close
fplot(@sin,[-pi, pi]);
axis([-pi pi -1 1]*1.1)


after the plot shows up, make zoom on some region and finally
run 'axis equal'. The plot disappears leaving an empty axis.
By doing some pan or zoom in/out in the figure the plot might reappear.

This happens with qt graphics toolkit.

This does not happen however if one does 


set(gca,'dataaspectratio',[1 1 1])


instead of axis equal.





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