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在 Latex 中可视化关系

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在 Latex 中可视化关系

如何确保节点或边缘处的文本位于其应在的位置而不是横跨图形？如果我可以框住节点，我会很高兴。

以下是我想做的事情：

\documentclass[border=1pt]{standalone}
\usepackage{tikz}
\begin{document}

\begin{figure}
\begin{tikzpicture}

\draw [black, thick] (0,0)   node {    Ethiopia} -- (4,0)   node {   Egypt} -- (8,4)   node {      South Sudan} -- (4,4)   node {   Sudan}  -- (0,0)  -- (8,4); 
\draw [black, thick] (4, 0) -- (4, 4);
\draw[-] (0,0) -- node[below, red, thick] {hostile} (4,0);
\draw[-] (4,0) -- node[below, blue, thick] {friendly} (8,4);
\draw[-] (8,4) -- node[above, red, thick] {hostile} (4,4);
\draw[-] (4,4) -- node[above, blue, thick] {friendly} (0,0);
\draw[-] (0,0) -- node[left, blue, thick] {friendly} (8,4);
\draw[-] (4,0) -- node[right, blue, thick] {friendly} (4,4);



\end{tikzpicture}
\caption{Relations in January 2020} \label{fig: Relations in 2020}
\end{figure}

\begin{figure}
\begin{tikzpicture}

\draw [black, thick] (0,0)   node {    Ethiopia} -- (4,0)   node {   Egypt} -- (8,4)   node {      South Sudan} -- (4,4)   node {   Sudan}  -- (0,0)  -- (8,4); 
\draw [black, thick] (4, 0) -- (4, 4);
\draw[-] (0,0) -- node[below, red, thick] {hostile} (4,0);
\draw[-] (4,0) -- node[below, blue, thick] {friendly} (8,4);
\draw[-] (8,4) -- node[above, blue, thick] {friendly} (4,4);
\draw[-] (4,4) -- node[above, blue, thick] {hostile} (0,0);
\draw[-] (0,0) -- node[left, blue, thick] {unknown} (8,4);
\draw[-] (4,0) -- node[right, blue, thick] {friendly} (4,4);


\end{tikzpicture}
\caption{Relations in January 2021} \label{fig: Relations in 2020}
\end{figure}
\end{document}

答案1

这就是你想要的东西吗？

在此处输入图片描述

我建议放置nodes（positioning带选项的库on grid）并使用它们作为参考，以便轻松绘制边缘，而不是绝对坐标。使用节点，边缘在其边界处停止绘制。

\documentclass[border=1pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning}
\begin{document}

\begin{tikzpicture}
\begin{scope}[on grid]
\node[draw] (Ethiopia) {Ethiopia};
\node[draw, right=4cm of Ethiopia] (Egypt) {Egypt};
\node[draw, above=4cm of Egypt] (Sudan) {Sudan};
\node[draw, right=4cm of Sudan] (SSudan) {South Sudan};
\end{scope}
\draw[-] (Ethiopia) edge node[below, red, thick] {hostile} (Egypt)
                         edge node[sloped, above, blue, thick] {friendly} (Sudan)
                         edge node[sloped, above, pos=.25, blue, thick] {friendly} (SSudan);
\draw[-] (Egypt) edge node[above, sloped, near start, blue, thick] {friendly} (Sudan)
                        edge node[below, sloped, blue, thick] {friendly} (SSudan);
\draw[-] (Sudan) edge node[above, red, thick] {hostile} (SSudan);
\end{tikzpicture}
\end{document}

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