[Octave-bug-tracker] [bug #49223] gnuplot with -depslatexstandalone fails to produce axis labels

[Dan Sebald]

Follow-up Comment #16, bug #49223 (project octave):

OK, thanks.  There is also the possibility of redefining \gplbactext, which is
a very PostScript-ee thing to do.

However, I think the solution is already present in Octave.  The axes object
has a layer property, which I noticed by looking through the gnuplot toolkit
code:


  ## The grid front/back/layerdefault option also controls the
  ## appearance of tics, so it is used even if the grid is absent.
  if (strcmp (axis_obj.layer, "top"))
    fputs (plot_stream, "set grid front;\n");
    fputs (plot_stream, "set border front;\n");
  else
    fputs (plot_stream, "set grid layerdefault;\n");
    ## FIXME: The gnuplot help says that "layerdefault" should work
    ##        for set border too, but it fails for me with gnuplot 4.2.5.
    ##        So, use "back" instead.
    fputs (plot_stream, "set border back;\n");
  endif


So, the following works with the current code:


graphics_toolkit gnuplot
plot([-10:10],[-10:10].^2,'o-')
title('Plot title should be on top')
legend('single legend')
text(0,20,'internal text at position (0,20)')
xlabel('X Label')
ylabel('Y Label')
set(gca, 'layer', 'top')
print('-dpdflatexstandalone','-color','test')


where I've added an extra "set()" command.

The issue is that the border being on the bottom layer doesn't seem to be of
any practical use unless perhaps the white background rectangle can be forced
even further back.  So, what to do?  Again, this front/back from gnuplot's
perspective isn't something I like--my preference in gnuplot would be to just
maintain the draw order as depth and let the user/application deal with the
layering.  I'll look around a bit and see if there is something sensible,
otherwise if there is a way to make "top" be the default border layer for
gnuplot toolkit, that might be the preference.


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