%XFlatexpr Magnification  0.5
\typeout{TransFig: figure text in LaTeX.}
\typeout{TransFig: figures in PostScript.}

\begingroup\makeatletter
% extract first six characters in \fmtname
\def\x#1#2#3#4#5#6#7\relax{\def\x{#1#2#3#4#5#6}}
\expandafter\x\fmtname xxxxxx\relax \def\y{splain}
\ifx\x\y   % LaTeX or SliTeX?
\gdef\SetFigFont#1#2#3{%
  \ifnum #1<17 \tiny\else \ifnum #1<20 \small\else
  \ifnum #1<24 \normalsize\else \ifnum #1<29 \large\else
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\gdef\SetFigFont#1#2#3{\begingroup
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  \def\x{\endgroup\@setsize\SetFigFont{#2pt}}%
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    \csname @\romannumeral\the\count@ pt\endcsname
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\endgroup

\def\dessin#1#2{
\begin{figure}[hbtp]\begin{center}
\begin{picture}(0,0)%
\special{psfile=wheel.ps}%
\end{picture}%
\setlength{\unitlength}{0.006250in}%
\begin{picture}(608,341)(60,405)
\put(575,485){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$u$}}}
\put(650,555){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$v$}}}
\put(550,590){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$w$}}}
\put(195,445){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$\theta$}}}
\put( 60,460){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$x$}}}
\put(425,535){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$y$}}}
\put(215,735){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$z$}}}
\put(305,405){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$u$}}}
\put(420,605){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$v$}}}
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\put(370,640){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$\psi$}}}
\put(265,700){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$\phi$}}}
\put(350,675){\makebox(0,0)[lb]{\smash{\SetFigFont{6}{7.2}{rm}$w$}}}
\end{picture}
\caption{\label{#2}#1}
\end{center}\end{figure}}
