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[Octave-bug-tracker] [bug #55931] Plot disappears after zooming out once

From: Rik
Subject: [Octave-bug-tracker] [bug #55931] Plot disappears after zooming out once and then clicking "Autoscale"
Date: Fri, 15 Mar 2019 18:36:48 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko

Update of bug #55931 (project octave):

              Item Group:        Unexpected Error => Incorrect Result       
                  Status:                    None => Confirmed              
                 Release:                     dev => 5.1.0                  
        Operating System:       Microsoft Windows => Any                    
                 Summary: Plot diisappers after zooming out once and then
clicking "Autoscale" => Plot disappears after zooming out once and then
clicking "Autoscale"


Follow-up Comment #1:

Version 5.1.1 would only be available if you are building the stable branch
yourself.  The released version is 5.1.0 so I changed the report to that
version, rather than dev.

I think this issue has been fixed on the development branch.  At any rate, the
code you mention works for me there.

On the stable branch, I can reproduce this, and even get weirder outcomes. 
See the attached messed_up.png file which resulted from a series of zoom
in/out and autoscale.

I think you could hunt through the Mercurial logs.  If you're lucky, there was
a single changeset which fixed this on the dev branch.  If it was part of a
larger overhaul of the graphics system then it probably has to just wait for
6.1.0 to come out.

(file #46549)

Additional Item Attachment:

File name: messed_up.png                  Size:26 KB


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