在下面的例子中，我想使节点/章节 1 和节点/章节 3 之间的垂直距离等于节点/章节 3 和节点/章节 4 之间的当前距离。节点/章节 2 的位置应在水平方向上与现在的位置相同，在垂直方向上与节点/章节 1 和节点/章节 3 的新位置的距离相等。节点/章节 3 和 4 之间的距离不应改变。我该怎么做？
\documentclass{book}
\usepackage{tikz}
\usetikzlibrary{positioning}
\usepackage{float}
\usepackage[colorlinks=true]{hyperref}
\definecolor{lightestgray}{rgb}{0.95,0.95,0.95}
\begin{document}
\setcounter{chapter}{-1}
\chapter{Preface} \label{Preface}
\newpage
\begin{figure}[H]%
\noindent\begin{center}%
\begin{tikzpicture}[%
>=stealth,%
every node/.style={%
text width=2cm,
align=center,
fill=lightestgray,
draw%
},]%
% create the nodes,
\node (c0) [shape=rectangle,rounded corners] {
\hyperref[Preface]{\ref{Preface}\\\nameref{Preface}}
};%
\node (c1) [shape=circle] [below left =of c0] {
\hyperref[chapter:Intro]{Chapter \ref{chapter:Intro}\\\nameref{chapter:Intro}}
};%
\node (c2) [shape=circle] [below right =of c1] {
\hyperref[chapter:Lit]{Chapter \ref{chapter:Lit}\\\nameref{chapter:Lit}}
};%
\node (c3) [shape=circle] [below left =of c2] {
\hyperref[chapter:Nice]{Chapter \ref{chapter:Nice}\\\nameref{chapter:Nice}}
};%
\node (c4) [shape=circle] [below =of c3] {
\hyperref[chapter:Conclus]{Chapter \ref{chapter:Conclus}\\\nameref{chapter:Conclus}}
};%
\node (c5) [shape=rectangle,rounded corners] [below right =of c4] {
\hyperref[appendix:SCode]{Appendix \ref{appendix:SCode}\\\nameref{appendix:SCode}}
};%
\node (c6) [shape=rectangle,rounded corners] [right =of c5] {
\hyperref[appendix:Docs]{Appendix \ref{appendix:Docs}\\\nameref{appendix:Docs}}
};%
% connect the nodes
\draw[->,dashed] (c0.south west) to[out=225,in=45] (c1.north east);%
\draw[->] (c1.south east) to[out=315,in=135] (c2.north west);%
\draw[->] (c1.south) to[out=270,in=90] (c3.north);%
\draw[->,dashed] (c2.south west) to[out=225,in=45] (c3.north east);%
\draw[->] (c3.south) to[out=270,in=90] (c4.north);%
\draw[->,dashed] (c5.north) to[out=90,in=270] (c2.south);%
\draw[->,dashed] (c6.north) to[out=90,in=315] (c2.south east);%
\end{tikzpicture}%
\end{center}%
\end{figure}%
\chapter{Intro} \label{chapter:Intro}
\chapter{Lit Review} \label{chapter:Lit}
\chapter{Nice things} \label{chapter:Nice}
\chapter{Conclus} \label{chapter:Conclus}
\renewcommand{\thechapter}{A}
\chapter{S Code} \label{appendix:SCode}
\renewcommand{\thechapter}{B}
\chapter{Docs} \label{appendix:Docs}
\end{document}
快照
答案1
像这样？
通过使用calc、chains和positioning库：
\documentclass{book}
\usepackage{tikz}
\usetikzlibrary{arrows.meta,
calc, chains,
positioning}
\usepackage[colorlinks=true]{hyperref}
\definecolor{lightestgray}{rgb}{0.95,0.95,0.95}
\begin{document}
\begin{figure}[ht]%
\centering
\begin{tikzpicture}[>=stealth,%
node distance = 11mm and 13mm,
start chain = going below,
C/.style = {circle, draw, fill=lightestgray, text width=2cm, align=center},
R/.style = {C, rectangle, rounded corners},
every edge/.style = {draw, -Stealth}
]
% create the nodes,
\begin{scope}[nodes={C, on chain}]
\node (c1) {\hyperref[chapter:Intro]{Chapter \ref{chapter:Intro}\\
\nameref{chapter:Intro}}};
\node (c3) {\hyperref[chapter:Nice]{Chapter \ref{chapter:Nice}\\
\nameref{chapter:Nice}}};
\node (c4) {\hyperref[chapter:Conclus]{Chapter \ref{chapter:Conclus}\\
\nameref{chapter:Conclus}}};
\end{scope}
\node (c2) [C, right=of $(c1.east)!0.5!(c3.east)$]
{\hyperref[chapter:Lit]{Chapter \ref{chapter:Lit}\\
\nameref{chapter:Lit}}};
% Appendinces
\node (c0) [R, above right=of c1]
{\hyperref[Preface]{\ref{Preface}\\\nameref{Preface}}};
\node (c5) [R, below right=of c4.south]
{\hyperref[appendix:SCode]{Appendix \ref{appendix:SCode}\\
\nameref{appendix:SCode}}};
\node (c6) [R, right =of c5]
{\hyperref[appendix:Docs]{Appendix \ref{appendix:Docs}\\
\nameref{appendix:Docs}}};
% links between nodes nodes
\draw (c1) edge (c3)
(c3) edge (c4)
(c1) edge (c2);
\draw[dashed]
(c0.south west) edge (c1)
(c2) edge (c3)
(c5) edge (c2)
(c6) edge (c2);
\end{tikzpicture}%
\end{figure}%
\chapter{Intro} \label{chapter:Intro}
\chapter{Lit Review} \label{chapter:Lit}
\chapter{Nice things} \label{chapter:Nice}
\chapter{Conclus} \label{chapter:Conclus}
\renewcommand{\thechapter}{A}
\chapter{S Code} \label{appendix:SCode}
\renewcommand{\thechapter}{B}
\chapter{Docs} \label{appendix:Docs}
\end{document}