TikZ 中的装饰支架

Question

我通过 MacTeX 在我的 Snow Leopard 笔记本电脑上安装了 TeX Live 2013。

我从2.10版第247页复制了以下代码pgfmanual：

\documentclass[a4paper,12pt]{report}
\usepackage{tikz}
\usetikzlibrary{decorations}

\begin{document}

\begin{tikzpicture}
\node (a) {A};
\node (b) at (2,1) {B};
\draw (a) -- (b);
\draw[decorate,decoration=brace] (a) -- (b);
\draw[decorate,decoration={brace,mirror},red] (a) -- (b);
\draw[decorate,decoration={brace,mirror,raise=5pt},blue] (a) -- (b);
\end{tikzpicture}

\end{document}

但不知怎的我却得到了这个错误：

./Untitled2.tex:11: Package pgfkeys Error: I do not know the key '/pgf/decorati
on/brace' and I am going to ignore it. Perhaps you misspelled it.

See the pgfkeys package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.11 \draw[decorate,decoration=brace]
                                      (a) -- (b);
? 

这是一个错误吗？

Answer 1

我相信我找到了解决方案。使用：

 \usetikzlibrary{decorations.pathreplacing}