[Octave-bug-tracker] [bug #50616] colorbar is blank for fltk/qt toolkits on png print

[A.R. Burgers]

URL:
  <http://savannah.gnu.org/bugs/?50616>

                 Summary: colorbar is blank for fltk/qt toolkits on png print
                 Project: GNU Octave
            Submitted by: arb
            Submitted on: Wed 22 Mar 2017 10:12:44 PM UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

See attached script cb.m, and attached png prints.

The scripts produces a contourf with associated colorbar for each of the 3
graphics toolkits.

The contour plots and colorbar look fine interactively for all toolkits, on
print to png for fltk and qt the colorbar becomes blank, for gnuplot the
colorbar looks good.



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File Attachments:


-------------------------------------------------------
Date: Wed 22 Mar 2017 10:12:44 PM UTC  Name: colorbar-fltk.png  Size: 55kB  
By: arb

<http://savannah.gnu.org/bugs/download.php?file_id=40083>
-------------------------------------------------------
Date: Wed 22 Mar 2017 10:12:44 PM UTC  Name: colorbar-qt.png  Size: 55kB   By:
arb

<http://savannah.gnu.org/bugs/download.php?file_id=40084>
-------------------------------------------------------
Date: Wed 22 Mar 2017 10:12:44 PM UTC  Name: colorbar-gnuplot.png  Size: 66kB 
 By: arb

<http://savannah.gnu.org/bugs/download.php?file_id=40085>
-------------------------------------------------------
Date: Wed 22 Mar 2017 10:12:44 PM UTC  Name: cb.m  Size: 289B   By: arb

<http://savannah.gnu.org/bugs/download.php?file_id=40086>

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