Re: [Maxima-discuss] terminal=tikz?

[Eduardo O. <edu...@gm...>]

On Wed, 23 Nov 2022 at 02:33, Robert Dodier <rob...@gm...> wrote:
>
> Eduardo, I'm glad to hear you got it working. There is still some
> confusion between draw2d and plot2d, and I apologize again for this
> messy situation.

Ouch! I forgot that!
Here's an updated version...

After patching share/draw/grcommon.lisp and share/draw/gnuplot.lisp I
run/ran this to clean up the files from the previous test,

  rm -fv /tmp/my*

and then I ran this in Maxima:

  F(x,y)        := 2*x^2 - x*y - y^2;
  level(z)      := implicit(F(x,y)=z, x,-2,2, y,-2,2);
  clevel(clr,z) := [color=clr, level(z)];
  clevels       :  [clevel(red,   -2),
                    clevel(orange,-1),
                    clevel(green,  0),
                    clevel(blue,   2),
                    clevel(violet, 5)];
  draw2d(file_name="/tmp/mydraw", terminal=tikz,   clevels);
  draw2d(file_name="/tmp/mydraw", terminal=pict2e, clevels);

  F(x,y) := 2*x^2 - x*y - y^2;
  set_plot_option ([gnuplot_term,     "tikz"]);
  set_plot_option ([gnuplot_out_file, "/tmp/myplot.tikz"]);
  plot2d([contour, F(x, y)], [x, -2, 2], [y, -2, 2]);
  set_plot_option ([gnuplot_term,     "pict2e"]);
  set_plot_option ([gnuplot_out_file, "/tmp/myplot.pict2e"]);
  plot2d([contour, F(x, y)], [x, -2, 2], [y, -2, 2]);

and then this in a shell:

  cd /usr/share/texmf/tex/
  cp -v gnuplot-lua-tikz-common.tex /tmp/
  cp -v gnuplot-lua-tikz.sty        /tmp/

  cd /tmp/

cat > mydraw-tikz.tex <<'---'
  \documentclass{article}
  \usepackage{tikz}
  \usepackage{gnuplot-lua-tikz}
  \begin{document}
  \input mydraw.tikz
  \end{document}
---

cat > mydraw-pict2e.tex <<'---'
  \documentclass{article}
  \usepackage{pict2e}
  \usepackage{xcolor}
  \usepackage{graphicx}
  \begin{document}
  \input mydraw.pict2e
  \end{document}
---

cat > myplot-tikz.tex <<'---'
  \documentclass{article}
  \usepackage{tikz}
  \usepackage{gnuplot-lua-tikz}
  \begin{document}
  \input myplot.tikz
  \end{document}
---

cat > myplot-pict2e.tex <<'---'
  \documentclass{article}
  \usepackage{pict2e}
  \usepackage{xcolor}
  \usepackage{graphicx}
  \begin{document}
  \input myplot.pict2e
  \end{document}
---

  # These work:
  lualatex myplot-tikz.tex
  lualatex myplot-pict2e.tex
  xpdf myplot-tikz.pdf
  xpdf myplot-pict2e.pdf

  # These don't:
  lualatex mydraw-tikz.tex
  lualatex mydraw-pict2e.tex


The

  lualatex mydraw-pict2e.tex

fails with:

  ! Dimension too large.
  <recently read> \unitlength
  l.11 \begin{picture}(360000,300000)(0,0)

and the

  lualatex mydraw-tikz.tex

fails with:

  ! Dimension too large.
  <recently read> \pgf@xx
  l.4 \path (0.000,0.000) rectangle (600.000,500.000)
                                                   ;

Cheers,
  Eduardo...