[Octave-bug-tracker] [bug #44187] Bugs and modifications in print() with gnuplot graphics toolkit

[Dan Sebald]

Follow-up Comment #17, bug #44187 (project octave):

Not having publication-quality graphical output isn't a 4.0 blocker?  The new
plotting graphics and approach of running everything through a postscript
converter doesn't make the grade.  Look at a PNG file; lines are inconsistent,
fonts are almost illegible.  Latex output formats aren't working.

And the gnuplot toolkit currently has, along with the
everything-through-postscript approach, enough bugs to render it practically
unusable for graphical output.

Please try the following test script and closely examine the results as the
external programs appear:


gtlk = {'fltk', 'gnuplot'};
opt = {'', '-mono', '-color'};
for i=1:length(gtlk)
  graphics_toolkit (gtlk{i});
  figure(i);
  plot([1:34].^2);
  set(gca, 'color', [0.5 1 0.5]);
  for j=1:length(opt)
    fname = ['footest' opt{j} '-' gtlk{i} '.png'];
    if isempty(opt{j})
      print (fname, '-dpng');
    else
      print (fname, '-dpng', opt{j});
    end
    system (['eog ' fname '; rm ' fname]);
  end
  for j=1:length(opt)
    fname = ['footest' opt{j} '-' gtlk{i} '.eps'];
    if isempty(opt{j})
      print (fname, '-deps');
    else
      print (fname, '-deps', opt{j});
    end
    system (['gv ' fname '; rm ' fname]);
  end
  if isequal(gtlk{i}, 'gnuplot')
    for j=1:length(opt)
      fname = ['footest-cairo' opt{j} '-' gtlk{i} '.png'];
      if isempty(opt{j})
        print (fname, '-dpngcairo');
      else
        print (fname, '-dpngcairo', opt{j});
      end
      system (['eog ' fname '; rm ' fname]);
    end
  end
end


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