[Octave-bug-tracker] [bug #41780] different PNG rendering for gnuplot and fltk backends

[Fabio]

URL:
  <http://savannah.gnu.org/bugs/?41780>

                 Summary: different PNG rendering for gnuplot and fltk
backends
                 Project: GNU Octave
            Submitted by: efferre79
            Submitted on: Wed 05 Mar 2014 03:26:09 PM GMT
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Inaccurate Result
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.0
        Operating System: GNU/Linux

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Details:

I'm using octave-3.8.1-rc4

I have compared the graphical results of the two backends, gnuplot and fltk,
and the quality of the PNG output is not comparable. I'm attaching the two
.png files obtained from the same data and with the same plot commands.

Besides the line width of the plot trace (which can be fixed adjusting the
right parameter), I see bad rendering of the grid lines in the fltk output.

The labels style is also different comparing the two plots.




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