[Octave-bug-tracker] [bug #48484] gnuplot: printing figure into file results in mostly black image (Windows)

[Hartmut]

URL:
  <http://savannah.gnu.org/bugs/?48484>

                 Summary: gnuplot: printing figure into file results in mostly
black image (Windows)
                 Project: GNU Octave
            Submitted by: hardy
            Submitted on: Tue 12 Jul 2016 06:07:38 PM GMT
                Category: Plotting with gnuplot
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.3
        Operating System: Microsoft Windows

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Details:

This happens under Windows with the current Octave 4.0.3 release, installed
via the official installer.

Here is a little script to show the behavior:

clear, close all
graphics_toolkit gnuplot 

plot(1:10)
print('test.png')


I will attach the resulting png file. Doing this with Octave 4.0.3 results in
a mostly black image with the correct axis labels. Doing this with Octave
4.0.1 produces a correct image file. So this is a regression. It might be due
to the version change of gnuplot that is delivered together with the Octave
Windows installer (see bug #48474).

Printing a qt figure into a file works fine.

Printing into a jpg file also results in the same black image. But printing
into an emf image file works fine. (I haven't tested more image file
formats.)

Doing this with Octave 4.0.3 under Ubuntu linux works fine. (But my linux PC
has gnuplot 4.6.4 installed.)



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File Attachments:


-------------------------------------------------------
Date: Tue 12 Jul 2016 06:07:38 PM GMT  Name: test_gnuplot_401_Win.png  Size:
14kB   By: hardy

<http://savannah.gnu.org/bugs/download.php?file_id=37825>
-------------------------------------------------------
Date: Tue 12 Jul 2016 06:07:38 PM GMT  Name: test_gnuplot_403_Win.png  Size:
9kB   By: hardy

<http://savannah.gnu.org/bugs/download.php?file_id=37826>

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