File: line.tex

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\input preamble.tex

\Defnum(\n,10)
\Defdim(\m,0)
\Defdim(\r,7)
\newdimen\a
\newdimen\x
\newdimen\y

% ---------------------------------------------------------------------------
\begin{document}
\unitlength1.25cm

\begin{center}
{\Huge\bf{Line}}
\bigskip

\begin{lapdf}(14,14)(-7,-7)
 \Whiledim{\m<360}{\Rad(\Np\m,\a)
  \Cos(\Np\a,\x) \Mul(\x,7)
  \Sin(\Np\a,\y) \Mul(\y,7)
  \Nextcol(0,23)
  \Line(0,0)(\Np\x,\Np\y) \Stroke
  \Dadd(\m,7.5)}
\end{lapdf}
\end{center}

\newpage

\begin{center}
{\Huge\bf{Lineto}}
\bigskip

\begin{lapdf}(14,14)(-7,-7)
 \Moveto(\Np\r,0)
 \Whilenum{\n<1445}{\Rad(\n,\a)
  \Cos(\Np\a,\x) \Dmul(\x,\r)
  \Sin(\Np\a,\y) \Dmul(\y,\r)
  \Nextcol(0,23)
  \Lineto(\Np\x,\Np\y) \Stroke
  \Moveto(\Np\x,\Np\y)
  \Add(\n,10) \Dsub(\r,0.05)}
\end{lapdf}
\end{center}
\end{document}