[Octave-bug-tracker] [bug #48200] axes labels are not visible printing a figure with gnuplot and epslatex

[Dan Sebald]

Follow-up Comment #2, bug #48200 (project octave):

This seems like a gnuplot bug, doesn't it?  There's no way to really control
what gnuplot is placing into the latex file.  I'll create a gnuplot bug ticket
for this.

I did uncover a couple Octave bugs though.  Trying to disable all backgrounds,
I did the following:


>> t = 0:0.01:12;
>> plot (t, sin (t));
>> set(gcf, 'color', 'none')
>> set(gca, 'color', 'none')
>> print ('plot.eps','-depslatexstandalone','-S400,240');
error: 'n' undefined near line 408 column 15
error: called from
    print at line 408 column 12


What's happening is that n is undefined because there are no large scale
objects having a white background, numel(hax) equals 0:


      ## Set background to white for all top-level axes objects
      hax = findall (opts.figure, "-depth", 1, "type", "axes",
                                  "-not", "tag", "legend",
                                  "-not", "color", "none");
      m = numel (props);
      for n = 1:numel(hax)
        props(m+n).h = hax(n);
        props(m+n).name = "color";
        props(m+n).value{1} = get(hax(n), "color");
        set (hax(n), "color", "white");
      endfor
      nfig += n;


Also, to accommodate a solution here without requiring a gnuplot upgrade, it
seems logical that if the figure color is "none" there should be no
background.  So I made a change there as well.

See attached changeset.

(file #37532)
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Additional Item Attachment:

File name: octave-print_figure_axis_background_bug48200-djs2016jun20.patch
Size:1 KB


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