%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-5-13 on page I-639 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}

  \setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{tikz}
%StopShownPreambleCommands

\begin{document}
\tikz\path[draw,line cap=round,
           line join=bevel,line width=10pt]
      (0,0)--(0.5,1.5)--(1,0)--(1.5,1.5);
\tikz\path[draw,thick,dash pattern=on 2pt off 3pt]
      (0,0)--(1,2);
\tikz\path[draw,line width=2pt,line join=round,
          double, double distance=5pt]
      (0,0)--(0.5,1.5)--(1,0)--(1.5,1.5);
\end{document}
