[Octave-bug-tracker] [bug #53840] Disappearing subplots in 4.4.0

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?53840>

                 Summary: Disappearing subplots in 4.4.0
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sat 05 May 2018 02:13:39 AM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: Tony Richardson
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.0
        Operating System: Any

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Details:

Filing bug report as requested in Octave mailing list ...

I've got a couple of scripts that create figures with several subplots.  There
are a couple of gui slider controls that, when changed, trigger redrawing of
some of the subplots.  Under 4.4.0 some of the subplots disappear when
redrawn.  The scripts still work fine under 4.2.2.  I have attached one of the
scripts.  (I have tried to come up with a simpler script that demonstrates the
problem, but have not been able to do so.  The original script reads in
sampled audio from a large file, but I changed the script to use simulated
input data.) 

Run the script, change around some of the gui slider controls and some of the
subplots will disappear.  This doesn't happen under 4.2.2.   

This is under Windows 10 with the Qt graphics toolkit.  Bug also exists under
Linux.

I realize this may be too complicated an example to easily debug.  Maybe
someone else is seeing similar behavior in a simpler script though? 

Regards, 
Tony Richardson



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File Attachments:


-------------------------------------------------------
Date: Sat 05 May 2018 02:13:39 AM UTC  Name: bugtest.m  Size: 11KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=44097>

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