%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-5-10 on page I-638 in "Basic objects".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{159.0pt}

%StartShownPreambleCommands
\usepackage{tikz}
%StopShownPreambleCommands

\begin{document}
\tikz\draw[line width=1pt,blue,->]
   (0,0)--(1,1)circle[radius=5mm]--(0,2);
\tikz\filldraw[dashed,fill=gray,line width=1pt]
   (0,0) -- (0.5,0.5) rectangle (1,1) -- (1.5,1.5);
\tikz\draw (0,0) ellipse[x radius=1cm, y radius=0.5cm]
             grid[step=0.1] (1,1);
\end{document}