我写了一个大型游戏树（使用自动机包）并需要以横向模式显示。我已经尝试使用两者文本位置和几何学（newgeometry 命令）包，但没有任何积极的结果。我需要将图片向左移动，以便游戏树的右侧部分正确显示。有什么建议吗？此外，如果有办法将其调整为纵向模式，那就更好了。以下是代码：
\documentclass[12pt]{exam}
\usepackage{tikz}
\usepackage{pgf}
\usepackage{geometry}
\usepackage{textpos}
\usepackage{pdflscape}
\usetikzlibrary{external,automata,trees,positioning,shadows,arrows,shapes.geometric}
\begin{document}
\begin{landscape}
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=2.8cm,
semithick]
\tikzstyle{every state}=[fill,draw=none,green,text=white,circular drop shadow]
\tikzstyle{accepting}=[circle split, draw,text=black,inner sep=0.08cm]
\tikzstyle{initial}=[red,text=white]
\node[state,initial] (N0) {Nature};
\node[state] (N1) [below left of=N0,xshift=-5cm] {Nature};
\node[state] (F1) [below left of=N1] {R\&G};
\node[state] (K1) [below right of=N1] {R\&G};
\node[state] (FS1) [below left of=F1] {H};
\node[accepting] (FN1) [above left of=F1] {\phantom{1}};
\node[state] (KS1) [below right of=K1] {H};
\node[accepting] (KN1) [above right of=K1] {\phantom{1}};
\node[accepting] (FSC1) [below left of=FS1] {\phantom{1}};
\node[accepting] (FSN1) [above left of=FS1] {\phantom{1}};
\node[accepting] (KSC1) [below right of=KS1] {\phantom{1}};
\node[accepting] (KSN1) [above right of=KS1] {\phantom{1}};
\path(N1) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F1)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K1);
\path(F1) edge node[above left,pos=.5]{escort} (FS1) edge node[ left]{don't}(FN1);
\path(K1) edge node[above right,pos=.5]{escort} (KS1) edge node[ right]{don't}(KN1);
\path(FS1) edge node[above left]{change} (FSC1) edge node[ left]{don't}(FSN1);
\path(KS1) edge node[above right]{change} (KSC1) edge node[ right]{don't}(KSN1);
\path(K1) edge[thick,dotted,-](F1);
\node[state] (N)[below right of=N0,xshift=5cm] {Nature};
\node[state] (F) [below left of=N] {R\&G};
\node[state] (K) [below right of=N] {R\&G};
\node[state] (FS) [below left of=F] {H};
\node[accepting] (FN) [above left of=F] {\phantom{1}};
\node[state] (KS) [below right of=K] {H};
\node[accepting] (KN) [above right of=K] {\phantom{1}};
\node[accepting] (FSC) [below left of=FS] {\phantom{1}};
\node[accepting] (FSN) [above left of=FS] {\phantom{1}};
\node[accepting] (KSC) [below right of=KS] {\phantom{1}};
\node[accepting] (KSN) [above right of=KS] {\phantom{1}};
\path(N) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K);
\path(F) edge node[above left,pos=.5]{escort} (FS) edge node[ left]{don't}(FN);
\path(K) edge node[above right,pos=.5]{escort} (KS) edge node[ right]{don't}(KN);
\path(FS) edge node[above left]{change} (FSC) edge node[ left]{don't}(FSN);
\path(KS) edge node[above right]{change} (KSC) edge node[ right]{don't}(KSN);
\path(K) edge[thick,dotted,-](F);
\end{tikzpicture}
\end{landscape}
\end{document}
答案1
解决方案没有，\resizebox因为使用此宏，文本会调整大小。我尝试像您一样使用横向环境。问题是要知道您是否需要在大型文档中使用此树或单独使用。
1)parindent=0pt 额外的水平空间。
2）\eject\null尝试将框以垂直模式放在新页面上；现在可以\vfill在框周围使用。
3）\hspace*{-4cm}我不知道课堂考试具体采用什么样的布局，所以我手动寻找一个合适的尺寸，使框居中而没有左边距。
4) 我在这里稍微缩小了node distance2.5 厘米而不是 2.8 厘米，也许可以再次缩小，但在这种情况下你需要更改一些文本的位置。
\documentclass[12pt]{exam}
\usepackage{tikz}
\usepackage{geometry}
\usepackage{pdflscape}
\usepackage{graphicx}
\usetikzlibrary{external,automata,trees,positioning,shadows,arrows,shapes.geometric}
\newlength\Textht
\setlength\Textht{\textheight}
\begin{document}
\begin{landscape}
\parindent=0pt
\eject\null
\vfill
\hspace*{-4cm}
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=2.5cm,
semithick]
\tikzstyle{every state}=[fill,draw=none,green,text=white,circular drop shadow]
\tikzstyle{accepting}=[circle split, draw,text=black,inner sep=0.08cm]
\tikzstyle{initial}=[red,text=white]
\node[state,initial] (N0) {Nature};
\node[state] (N1) [below left of=N0,xshift=-5cm] {Nature};
\node[state] (F1) [below left of=N1] {R\&G};
\node[state] (K1) [below right of=N1] {R\&G};
\node[state] (FS1) [below left of=F1] {H};
\node[accepting] (FN1) [above left of=F1] {\phantom{1}};
\node[state] (KS1) [below right of=K1] {H};
\node[accepting] (KN1) [above right of=K1] {\phantom{1}};
\node[accepting] (FSC1) [below left of=FS1] {\phantom{1}};
\node[accepting] (FSN1) [above left of=FS1] {\phantom{1}};
\node[accepting] (KSC1) [below right of=KS1] {\phantom{1}};
\node[accepting] (KSN1) [above right of=KS1] {\phantom{1}};
\path(N1) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F1)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K1);
\path(F1) edge node[above left,pos=.5]{escort} (FS1) edge node[ left]{don't}(FN1);
\path(K1) edge node[above right,pos=.5]{escort} (KS1) edge node[ right]{don't}(KN1);
\path(FS1) edge node[above left]{change} (FSC1) edge node[ left]{don't}(FSN1);
\path(KS1) edge node[above right]{change} (KSC1) edge node[ right]{don't}(KSN1);
\path(K1) edge[thick,dotted,-](F1);
\node[state] (N) [below right of=N0,xshift=5cm] {Nature};
\node[state] (F) [below left of=N] {R\&G};
\node[state] (K) [below right of=N] {R\&G};
\node[state] (FS) [below left of=F] {H};
\node[accepting] (FN) [above left of=F] {\phantom{1}};
\node[state] (KS) [below right of=K] {H};
\node[accepting] (KN) [above right of=K] {\phantom{1}};
\node[accepting] (FSC) [below left of=FS] {\phantom{1}};
\node[accepting] (FSN) [above left of=FS] {\phantom{1}};
\node[accepting] (KSC) [below right of=KS] {\phantom{1}};
\node[accepting] (KSN) [above right of=KS] {\phantom{1}};
\path(N) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K);
\path(F) edge node[above left,pos=.5]{escort} (FS) edge node[ left]{don't}(FN);
\path(K) edge node[above right,pos=.5]{escort} (KS) edge node[ right]{don't}(KN);
\path(FS) edge node[above left]{change} (FSC) edge node[ left]{don't}(FSN);
\path(KS) edge node[above right]{change} (KSC) edge node[ right]{don't}(KSN);
\path(K) edge[thick,dotted,-](F);
\end{tikzpicture}%
\hfill
\vfill
\end{landscape}
\end{document}
答案2
您可以\resizebox从graphicx包中使用它；由于在横向模式下宽度和高度会交换，因此您需要使用原始宽度\textheight作为调整大小的新宽度：
\documentclass[12pt]{exam}
\usepackage{tikz}
\usepackage{geometry}
\usepackage{graphicx}
\usetikzlibrary{external,automata,trees,positioning,shadows,arrows,shapes.geometric}
\newlength\Textht
\setlength\Textht{\textheight}
\begin{document}
\begin{landscape}
\null\vfill
\noindent\resizebox{\Textht}{!}{%
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=2.8cm,
semithick]
\tikzstyle{every state}=[fill,draw=none,green,text=white,circular drop shadow]
\tikzstyle{accepting}=[circle split, draw,text=black,inner sep=0.08cm]
\tikzstyle{initial}=[red,text=white]
\node[state,initial] (N0) {Nature};
\node[state] (N1) [below left of=N0,xshift=-5cm] {Nature};
\node[state] (F1) [below left of=N1] {R\&G};
\node[state] (K1) [below right of=N1] {R\&G};
\node[state] (FS1) [below left of=F1] {H};
\node[accepting] (FN1) [above left of=F1] {\phantom{1}};
\node[state] (KS1) [below right of=K1] {H};
\node[accepting] (KN1) [above right of=K1] {\phantom{1}};
\node[accepting] (FSC1) [below left of=FS1] {\phantom{1}};
\node[accepting] (FSN1) [above left of=FS1] {\phantom{1}};
\node[accepting] (KSC1) [below right of=KS1] {\phantom{1}};
\node[accepting] (KSN1) [above right of=KS1] {\phantom{1}};
\path(N1) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F1)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K1);
\path(F1) edge node[above left,pos=.5]{escort} (FS1) edge node[ left]{don't}(FN1);
\path(K1) edge node[above right,pos=.5]{escort} (KS1) edge node[ right]{don't}(KN1);
\path(FS1) edge node[above left]{change} (FSC1) edge node[ left]{don't}(FSN1);
\path(KS1) edge node[above right]{change} (KSC1) edge node[ right]{don't}(KSN1);
\path(K1) edge[thick,dotted,-](F1);
\node[state] (N)[below right of=N0,xshift=5cm] {Nature};
\node[state] (F) [below left of=N] {R\&G};
\node[state] (K) [below right of=N] {R\&G};
\node[state] (FS) [below left of=F] {H};
\node[accepting] (FN) [above left of=F] {\phantom{1}};
\node[state] (KS) [below right of=K] {H};
\node[accepting] (KN) [above right of=K] {\phantom{1}};
\node[accepting] (FSC) [below left of=FS] {\phantom{1}};
\node[accepting] (FSN) [above left of=FS] {\phantom{1}};
\node[accepting] (KSC) [below right of=KS] {\phantom{1}};
\node[accepting] (KSN) [above right of=KS] {\phantom{1}};
\path(N) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K);
\path(F) edge node[above left,pos=.5]{escort} (FS) edge node[ left]{don't}(FN);
\path(K) edge node[above right,pos=.5]{escort} (KS) edge node[ right]{don't}(KN);
\path(FS) edge node[above left]{change} (FSC) edge node[ left]{don't}(FSN);
\path(KS) edge node[above right]{change} (KSC) edge node[ right]{don't}(KSN);
\path(K) edge[thick,dotted,-](F);
\end{tikzpicture}%
}
\vfill
\end{landscape}
\end{document}
我还使用了一些\vfill命令来垂直居中tikzpicture，但这些是可选的。还请注意，由于您正在加载tikz，因此无需明确加载pgf。
可以使用相同的命令在纵向模式下调整树的大小：
\documentclass[12pt]{exam}
\usepackage{tikz}
\usepackage{geometry}
\usepackage{graphicx}
\usepackage{pdflscape}
\usetikzlibrary{external,automata,trees,positioning,shadows,arrows,shapes.geometric}
\begin{document}
\noindent\resizebox{\textwidth}{!}{%
\begin{tikzpicture}[->,>=stealth',shorten >=1pt,auto,node distance=2.8cm,
semithick]
\tikzstyle{every state}=[fill,draw=none,green,text=white,circular drop shadow]
\tikzstyle{accepting}=[circle split, draw,text=black,inner sep=0.08cm]
\tikzstyle{initial}=[red,text=white]
\node[state,initial] (N0) {Nature};
\node[state] (N1) [below left of=N0,xshift=-5cm] {Nature};
\node[state] (F1) [below left of=N1] {R\&G};
\node[state] (K1) [below right of=N1] {R\&G};
\node[state] (FS1) [below left of=F1] {H};
\node[accepting] (FN1) [above left of=F1] {\phantom{1}};
\node[state] (KS1) [below right of=K1] {H};
\node[accepting] (KN1) [above right of=K1] {\phantom{1}};
\node[accepting] (FSC1) [below left of=FS1] {\phantom{1}};
\node[accepting] (FSN1) [above left of=FS1] {\phantom{1}};
\node[accepting] (KSC1) [below right of=KS1] {\phantom{1}};
\node[accepting] (KSN1) [above right of=KS1] {\phantom{1}};
\path(N1) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F1)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K1);
\path(F1) edge node[above left,pos=.5]{escort} (FS1) edge node[ left]{don't}(FN1);
\path(K1) edge node[above right,pos=.5]{escort} (KS1) edge node[ right]{don't}(KN1);
\path(FS1) edge node[above left]{change} (FSC1) edge node[ left]{don't}(FSN1);
\path(KS1) edge node[above right]{change} (KSC1) edge node[ right]{don't}(KSN1);
\path(K1) edge[thick,dotted,-](F1);
\node[state] (N)[below right of=N0,xshift=5cm] {Nature};
\node[state] (F) [below left of=N] {R\&G};
\node[state] (K) [below right of=N] {R\&G};
\node[state] (FS) [below left of=F] {H};
\node[accepting] (FN) [above left of=F] {\phantom{1}};
\node[state] (KS) [below right of=K] {H};
\node[accepting] (KN) [above right of=K] {\phantom{1}};
\node[accepting] (FSC) [below left of=FS] {\phantom{1}};
\node[accepting] (FSN) [above left of=FS] {\phantom{1}};
\node[accepting] (KSC) [below right of=KS] {\phantom{1}};
\node[accepting] (KSN) [above right of=KS] {\phantom{1}};
\path(N) edge node[ above left, pos=.20]{feed Hamlet} node[ below right, pos=.30]{0} (F)
edge node[above right, pos=.20]{kill Hamlet} node[below left, pos=.30]{1} (K);
\path(F) edge node[above left,pos=.5]{escort} (FS) edge node[ left]{don't}(FN);
\path(K) edge node[above right,pos=.5]{escort} (KS) edge node[ right]{don't}(KN);
\path(FS) edge node[above left]{change} (FSC) edge node[ left]{don't}(FSN);
\path(KS) edge node[above right]{change} (KSC) edge node[ right]{don't}(KSN);
\path(K) edge[thick,dotted,-](F);
\end{tikzpicture}%
}
\end{document}
