Tikz 图片大于页面

Question

我有一张包含几个节点的图表，但由于其大小，它超出了页面。我如何将其设置为自动缩放以适合页面？此外，我该怎么做才能使其位于页面中央？

\begin{tikzpicture}[>=stealth, every node/.style={circle, draw, minimum size=0.75cm}]
\graph [tree layout, grow=down, fresh nodes, level distance=0.5in, sibling distance=0.5in]
    {[name=t1]
        R -> {
            b',
            c,
            d',
            e
        }
    };
\begin{scope}[xshift=4.5cm]   
\graph [tree layout, grow=down, fresh nodes, level distance=0.5in, sibling distance=0.5in]
    {[name=tb]
        R -> {
            b,
            c,
            d,
            e
        }
    };  
\end{scope}
\begin{scope}[xshift=9cm]   
\graph [tree layout, grow=down, fresh nodes, level distance=0.5in, sibling distance=0.5in]
    {[name=t2]
        R -> {
            b,
            c',
            d,
            e
        }
    };  
\end{scope}
\begin{scope}[xshift=13.5cm]   
\graph [tree layout, grow=down, fresh nodes, level distance=0.5in, sibling distance=0.5in]
    {[name=tm]
        R -> {
            b',
            c',
            d',
            e
        }
    };  
\end{scope}

\node[draw=none,label={above left:$n_{1}$}] at (t1 R) {}; 
\node[draw=none,label={above left:$n_{b}$}] at (tb R) {}; 
\node[draw=none,label={above left:$n_{2}$}] at (t2 R) {}; 
\node[draw=none,label={above left:$n_{m}$}] at (tm R) {}; 
\end{tikzpicture}

Answer 1

我不知道自动缩放，但你可以使用scale=TiKZ 的选项，例如

\begin{tikzpicture}[scale=.75]。