Ok. I was a bit confused by gnuplot's (v 4.3) description of what
size
XX,YY did.
----------------------------
set size <XX>, <YY> scales the plot itself relative to the size of
the
canvas. Scale values less than 1 will cause the plot to not ???ll the
entire canvas. Scale values larger than 1 will cause only a portion
of
the plot to ???t on the canvas. Please be aware that setting scale
values larger than 1 may cause problems on some terminal types.
The major exception to this convention is the PostScript driver,
which
by default continues to act as it has in earlier versions. Be warned
that the next version of gnuplot may change the default behaviour of
the PostScript driver as well.
----------------------------
When I tried using it, I found for the x11, aqua, and wxt terminals
that "the plot itself" excluded the ticklabels, axislabels, and
title.
I hadn't tried it out postscript, which apparently does something
different (I don't know what), but also appears to be one of the
better implementations.
In any event, when I get to rendering the axes, I'll use gnuplot's
"set margin".