[Octave-bug-tracker] [bug #42107] Image colors are inverted when printing a plot to a file with FLTK

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?42107>

                 Summary: Image colors are inverted when printing a plot to a
file with FLTK
                 Project: GNU Octave
            Submitted by: None
            Submitted on: dom 13 apr 2014 12:09:42 UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Andrea Lazzarotto
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.1
        Operating System: GNU/Linux

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Details:

The attached example contains code which:

0 shows a picture with _imshow_
0 plots some data over it in blue
0 displays the figure
0 saves the figure to a file
0 repeats the steps with GNUPlot

The figure display correctly on video, while the resulting output picture has
a "correct" blue line, but inverted colors. This happens *only with FLTK* on
my machine.

Expected result: I would expect to get a printed picture with correct colors,
like GNUPlot does.



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File Attachments:


-------------------------------------------------------
Date: dom 13 apr 2014 12:09:42 UTC  Name: code.m  Size: 310B   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=31160>
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Date: dom 13 apr 2014 12:09:42 UTC  Name: rainbow.jpg  Size: 19kB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=31161>
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Date: dom 13 apr 2014 12:09:42 UTC  Name: output_fltk.jpg  Size: 44kB   By:
None

<http://savannah.gnu.org/bugs/download.php?file_id=31162>
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Date: dom 13 apr 2014 12:09:42 UTC  Name: output_gnuplot.jpg  Size: 42kB   By:
None

<http://savannah.gnu.org/bugs/download.php?file_id=31163>

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  <http://savannah.gnu.org/bugs/?42107>

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