[Octave-bug-tracker] [bug #38407] Problem writing FLTK figure to file using saveas

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?38407>

                 Summary: Problem writing FLTK figure to file using saveas
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Mon 25 Feb 2013 11:32:02 AM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Adam A
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.4
        Operating System: GNU/Linux

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Details:

I've come across a problem when saving a figure to file using 'saveas'.  In
certain situations, data plotted using 'scatter' is missing from the saved
file.  This is on Octave 3.6.4, running on Scientific Linux 6.2.

As far as I can tell, the bug only seems to appear under a combination of
conditions (below).  However, I haven't pinned down the precise combination
that causes the problem.
- Using FLTK
- Using subplots
- Using hold on/hold off
- Using scatter

A similar problem occurs if I try to save the figure to file using 'print'
instead of 'saveas'.

Code to reproduce the bug:


graphics_toolkit fltk

xco   = 1:20;
yco   = 1:20;
zdata = 1:20;

% Figure A:  Works
figure
subplot(1,2,1)
scatter(xco,yco,[],zdata,'.')
subplot(1,2,2)
plot(xco,yco,'bd','MarkerFaceColor','b','MarkerSize',2)
saveas(gcf,'testA.png')

% Figure B:  Does not work
figure
subplot(1,2,1)
hold on
scatter(xco,yco,[],zdata,'.')
hold off
subplot(1,2,2)
plot(xco,yco,'bd','MarkerFaceColor','b','MarkerSize',2)
saveas(gcf,'testB.png')

% Figure C:  Works
figure
subplot(1,2,1)
hold on
scatter(xco,yco,[],zdata,'.')
hold off
subplot(1,2,2)
plot(xco,yco,'bd')
saveas(gcf,'testC.png')





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