[Octave-bug-tracker] [bug #55654] Image not displayed with YDir set to normal

[Guillaume]

URL:
  <https://savannah.gnu.org/bugs/?55654>

                 Summary: Image not displayed with YDir set to normal
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Wed 06 Feb 2019 10:48:11 AM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

When I run the following:


figure;
ax = axes ('Position', [0 0 0.5 0.3]);
imagesc (rand (32), 'Parent', ax);
set (ax, 'YDir', 'normal');


the image disappears and the content of the axis is empty when 'Ydir' is set
to 'normal'. Resizing the figure in the vertical axis can make it reappear
(this might also be something you have to do to observe the problem in the
first instance with a different screen configuration). The fact that it comes
and goes seems to indicate there might be a rounding error somewhere.




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