example-2.15.tex

\documentclass{article}

%% Denote paragraphs with vertical space rather than indenting (not critical)
\usepackage{parskip}

%% Support for URL in introductory text (not needed for main example)
\usepackage{url}

%% *** Enable TikZ ***
\usepackage{tikz}


\begin{document}

%% Introductory Text
Example 2.15 from the book\\
\emph{Unlocking LaTeX Graphics: A Concise Guide to Ti$k$Z/PGF and PGFPLOTS}.\\
For more information, visit \url{https://latex-graphics.com}.
\par\bigskip

%% *** START OF EXAMPLE CODE ***
\begin{tikzpicture}[thick]
  \draw[fill=red,rounded corners=1pt] (0,0) -- +(0:0.8) -- ([turn]45:0.8) -- ([turn]45:0.8) -- ([turn]45:0.8) -- ([turn]45:0.8) -- ([turn]45:0.8) -- ([turn]45:0.8) -- cycle;
\end{tikzpicture}
%% *** END OF EXAMPLE CODE ***

\end{document}