Re: [Dvipng] Adding tikz/pgf support to dvipng?

[Paul Mantz]

I'm using TeXLive 2007 on OS X 10.4 and don't have any problems
running pdflatex of latex+dvipdf on a .tex file with the following
contents:

----------

\documentclass[10pt]{article}

\usepackage{tikz}

\newcommand{\tikzaxes}[2]{
  \draw[<->] (-#1, 0) -- (0, #1);
  \draw[<->] (-#2, 0) -- (0, #2);
}

\begin{document}

  This is a test of the pgf package,and to see if it's even default in
  {\TeX}Live.

  \begin{center}
    \begin{tikzpicture}
      \draw (-1.5,0) -- (1.5,0);
    \draw (0,-1.5) -- (0,1.5);
    \end{tikzpicture}
  \end{center}

This is another test.

\begin{center}
  \begin{tikzpicture}
    \draw[<->, very thick] (-3,0) -- (3,0);
    \draw[<->, very thick] (0,-3) -- (0,3);
    \draw[thick] (0,0) circle (2);

    \draw (0,0) -- (30:2);
    \draw (0,0) -- (0:0.75) arc (0:30:0.75);
    \draw (15:1) node {$\theta$};
  \end{tikzpicture}
\end{center}

\end{document}

-----------

However, I get the following on stderr when I run dvipdf on a .dvi
made with the previous code (sorry for the linebreak soup):

----------

dvipng warning: at (0,0) ignored header \special{! /pgfH{/pgfheight
exch def 0.75 setlinewidth [] 0 setdash /pgfshade {pgfA} def /pgfdir {
dup 0 moveto dup 5 index lineto } bind def} bind def}

dvipng warning: at (0,0) ignored header \special{! /pgfV{/pgfheight
exch def 0.75 setlinewidth [] 0 setdash /pgfshade {pgfA} def /pgfdir {
dup 0 exch moveto dup 5 index exch lineto } bind def} bind def}

dvipng warning: at (0,0) ignored header \special{! /pgfA{ /pgfdiff 8
index round cvi 8 index round cvi sub 2 mul 1 add def 2 index 6 index
sub pgfdiff div 2 index 6 index sub pgfdiff div 2 index 6 index sub p\
gfdiff div pgfheight 9 index 9 index 9 index 14 index pgfdiff { 3
index 3 index 3 index setrgbcolor pgfdir stroke 4 -1 roll 7 index add
4 -1 roll 6 index add 4 -1 roll 5 index add 4 -1 roll .5 sub } repeat
ma\
rk 15 1 roll cleartomark exch pop }bind def }

dvipng warning: at (0,0) ignored header \special{! /pgfR1{ newpath dup
dup dup 0 360 arc clip newpath dup /pgfendx exch def /pgfendy exch def
0.875 setlinewidth [] 0 setdash /pgfshade {pgfR} def /pgfstartx ex\
ch def /pgfstarty exch def /pgfdiffx pgfendx pgfstartx sub def
/pgfdiffy pgfendy pgfstarty sub def dup /pgfdomb exch def }bind def }

dvipng warning: at (0,0) ignored header \special{! /pgfR2{ newpath 0.5
add pgfcircx pgfcircy 3 2 roll 0 360 arc setrgbcolor fill pop}bind def
}

dvipng warning: at (0,0) ignored header \special{! /pgfR{ /pgfdiff 8
index round cvi 8 index round cvi sub 4 mul 1 add def /pgfcircx
pgfstartx 9 index pgfdiffx pgfdomb div mul add def /pgfcircy pgfstarty
9 in\
dex pgfdiffy pgfdomb div mul add def /pgfcircxe pgfstartx 8 index
pgfdiffx pgfdomb div mul add def /pgfcircye pgfstarty 8 index pgfdiffy
pgfdomb div mul add def /pgfxstep pgfcircxe pgfcircx sub pgfdiff div
de\
f /pgfystep pgfcircye pgfcircy sub pgfdiff div def 2 index 6 index sub
pgfdiff div 2 index 6 index sub pgfdiff div 2 index 6 index sub
pgfdiff div 8 index 8 index 8 index 13 index pgfdiff { 3 index 3 index
3 \
index setrgbcolor pgfcircx pgfcircy 2 index 0 360 arc closepath stroke
4 -1 roll 6 index add 4 -1 roll 5 index add 4 -1 roll 4 index add 4 -1
roll .25 sub /pgfcircx pgfcircx pgfxstep add def /pgfcircy pgfcirc\y
pgfystep add def } repeat mark 14 1 roll cleartomark exch pop }bind
def}

dvipng warning: at (0,0) ignored header \special{!
/pgfsc{}B/pgffc{}B/pgfstr{stroke}B/pgffill{fill}B/pgfeofill{eofill}B/pgfe{a
dup 0 rlineto exch 0 exch rlineto neg 0 rlineto
closepath}B/pgfw{setlinewidth}B/\pgfs{save pgfpd 72 Resolution div 72
VResolution div neg scale magscale{1 DVImag div dup scale}if pgfx neg
pgfy neg translate pgffoa .setopacityalpha}B/pgfr{pgfsd restore}B
userdict begin/pgfo{pgfsd /pgfx cur\
rentpoint /pgfy exch def def @beginspecial}B /pgfc{newpath @endspecial
pgfpd}B /pgfsd{globaldict /pgfdelta /delta where {pop delta} {0}
ifelse put}B/pgfpd{/delta globaldict /pgfdelta get def}B
/.setopacityalp\ha where {pop} {/.setopacityalpha{pop}def} ifelse
/.pgfsetfillopacityalpha{/pgffoa exch def /pgffill{gsave pgffoa
.setopacityalpha fill 1 .setopacityalpha newpath fill grestore}B
/pgfeofill{gsave pgffoa .seto\
pacityalpha eofill1 .setopacityalpha newpath eofill grestore}B}B
/.pgfsetstrokeopacityalpha{/pgfsoa exch def /pgfstr{gsave pgfsoa
.setopacityalpha stroke grestore}B}B /pgffoa 1 def /pgfsoa 1 def end }

dvipng warning: at (86,73) ignored header \special{! /pgf1{gsave exec
1.0 pgfw 2.00002 0.0 moveto -6.00006 4.00005 lineto -3.00003 0.0
lineto -6.00006 -4.00005 lineto pgffill  grestore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf2{gsave exec
1.0 pgfw 0.8 pgfw [ ] 0.0 setdash 1 setlinecap 1 setlinejoin -3.00003
4.00005 moveto -2.75002 2.50002 0.0 0.24998 0.75 0.0 curveto 0.0
-0.\24998 -2.75002 -2.50002 -3.00003 -4.00005 curveto pgfstr
grestore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf3{gsave exec
1.0 pgfw [ ] 0.0 setdash 0.0 -5.00005 moveto 0.0 5.00005 lineto pgfstr
 grestore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf4{gsave exec
1.0 pgfw [ ] 0.0 setdash -3.00003 -5.00005 moveto 0.0 -5.00005 lineto
0.0 5.00005 lineto -3.00003 5.00005 lineto pgfstr  grestore} bind
de\f}

dvipng warning: at (86,73) ignored header \special{! /pgf5{gsave exec
1.0 pgfw [ ] 0.0 setdash -2.00002 -5.00005 moveto 1.0 -3.00003 1.0
3.00003 -2.00002 5.00005 curveto pgfstr  grestore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf6{gsave exec
1.0 pgfw [ ] 0.0 setdash -4.50003 -5.00005 moveto 0.49998 0.0 lineto
-4.50003 5.00005 lineto pgfstr  grestore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf7{gsave exec
1.0 pgfw -2.50002 0.0 translate [ ] 0.0 setdash 3.00003 0.0 moveto
3.00003 1.665 1.665 3.00003 0.0 3.00003 curveto -1.665 3.00003
-3.00003\
 1.665 -3.00003 0.0 curveto -3.00003 -1.665 -1.665 -3.00003 0.0
-3.00003 curveto 1.665 -3.00003 3.00003 -1.665 3.00003 0.0 curveto
closepath gsave pgffc pgffill grestore gsave pgfsc pgfstr grestore
newpath  g\
restore} bind def}

dvipng warning: at (86,73) ignored header \special{! /pgf8{gsave exec
1.0 pgfw [ ] 0.0 setdash 1.0 0.0 moveto -5.00005 3.00003 lineto
-11.00012 0.0 lineto -5.00005 -3.00003 lineto closepath gsave pgffc
pgffil\
l grestore gsave pgfsc pgfstr grestore newpath  grestore} bind def}

dvipng warning: at (324,165) unimplemented \special{ps: }

dvipng warning: at (324,389) unimplemented \special{ps: }

----------

Basically, dvipng completes, and creates none of the pgf elements,
except for the node (which is just a grid-specified string of LaTeX
code.)  I'm not much of a TeXnician as I should be, so I'm not
familiar with the .dvi file spec to know what's going on.  Any idea on
what these codes mean?

--Paul


On Dec 3, 2007 5:43 AM, Jan-Åke Larsson <address@hidden> wrote:
> Paul Mantz wrote:
> > I'm interested to know if there are any plans to add tikz/pgf support
> > to dvipng, and complications arise in this situation.
>
> As far as I understand, tikz/pgf can output PostScript (or code fit for
> dvips, at least). In that case, the CVS version of dvipng should be able
> to handle it. Please try it out, an report success/failure to me.
>
> (I have unfortunately been unable to make the documentation examples in
> pgf-1.18 to even produce a DVI, my error is
>
> ERROR: Undefined control sequence.
>
> --- TeX said ---
> l.20 \usepgflibrary
>                    {plothandlers}
>
> this is the first code line in tikz.sty)
>
> /JÅ
>
> --
> kernel, n.: A part of an operating system that preserves the medieval
>             traditions of sorcery and black art.
>
>
>
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