[Octave-bug-tracker] [bug #40054] FLTK: incorrect Z-order stacking for markers and images

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?40054>

                 Summary: FLTK: incorrect Z-order stacking for markers and
images
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Tue 17 Sep 2013 08:28:41 AM PDT
                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:

The following code plots a line and an image on the same plot.  According to
the plotting rules, the first-listed child of the current axis should be on
top in the Z-order stacking.  This works correctly for the line portion of a
line object, but the markers are incorrectly placed at the top of the
Z-order.

Sample code:


graphics_toolkit fltk;
clf;
colormap ('default');
hold on;
plot (1:4, '-s');
imagesc (1 ./ hilb (4));
hold off;


I've attached two plots which show the difference between gnuplot, which gets
it right, and fltk.  I had to take a screen capture for the FLTK image because
the image is printed correctly, just not displayed on a monitor correctly.




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File Attachments:


-------------------------------------------------------
Date: Tue 17 Sep 2013 08:28:41 AM PDT  Name: fltk.png  Size: 11kB   By: rik5

<http://savannah.gnu.org/bugs/download.php?file_id=29164>
-------------------------------------------------------
Date: Tue 17 Sep 2013 08:28:41 AM PDT  Name: gnuplot.png  Size: 13kB   By:
rik5

<http://savannah.gnu.org/bugs/download.php?file_id=29165>

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