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用希腊字母标记 TIKZ 图

tag-icon • tag-icon tikz-pgf tikz-trees
用希腊字母标记 TIKZ 图

我对 TIKZ 不是很有经验，但我制作了一些这样的图表。

在此处输入图片描述

当我尝试将标签名称更改为希腊字母时，我遇到了错误。有没有办法修改我的代码，将标签更改为 alpha、beta 等？

以下是代码：

\documentclass{beamer}

\usepackage{tikz}

\usepackage{verbatim}
\usetikzlibrary{arrows,shapes}

\begin{document}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}

\tikzstyle{vertex}=[circle,fill=black!25,minimum size=14pt,inner sep=0pt]
\tikzstyle{selected vertex} = [vertex, fill=red!24]
\tikzstyle{edge} = [draw,thick,-]
\tikzstyle{weight} = [font=\small]
\tikzstyle{selected edge} = [draw,line width=5pt,-,red!50]
\tikzstyle{ignored edge} = [draw,line width=5pt,-,black!20]

%Start of graph
\begin{tikzpicture}[scale=.7, auto,swap]
\foreach \pos/\name in {{(0,0)/a},{(2,0)/b},{(3,2)/c},{(2,4)/d},{(0,4)/e},
{(-1,2)/f},{(-1,-1)/1},{(-2,-2)/2},{(3,-1)/3},{(4,-2)/4},{(4,2)/5},
{(5,2)/6},{(-2,2)/7},{(-3,2)/8},{(-1,5)/9},{(-2,6)/10},{(3,5)/11},
{(4,6)/12}}
    \node[vertex] (\name) at \pos {$\name$}; 
% Connect vertices with edges
\foreach \source/ \dest /\weight in {a/b/, b/c/, c/d/, d/e/, 
e/f/,f/a/,a/1/,1/2/,b/3/,3/4/,c/5/,5/6/,f/7/,7/8/,e/9/,9/10/,d/11/,11/12/}
    \path[edge] (\source) -- node[weight] {$\weight$} (\dest);


\end{tikzpicture}
\end{document}

答案1

您可以将第一个循环一分为二，为第一部分引入第三个循环变量，代表节点文本（\alpha，，\beta等等）。

在此处输入图片描述

\documentclass{beamer}

\usepackage{tikz}

\usepackage{verbatim}
\usetikzlibrary{arrows,shapes}

\begin{document}
\begin{frame}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}

\tikzset{
  vertex/.style={circle,fill=black!25,minimum size=14pt,inner sep=0pt},
  selected vertex/.style={vertex, fill=red!24},
  edge/.style={draw,thick,-},
  weight/.style={font=\small},
  selected edge/.style={draw,line width=5pt,-,red!50},
  ignored edge/.style={draw,line width=5pt,-,black!20}
}

%Start of graph
\begin{tikzpicture}[scale=.7, auto,swap]
\foreach \pos/\name/\txt in {{(0,0)/a/\alpha},{(2,0)/b/\beta},{(3,2)/c/\gamma},{(2,4)/d/\delta},{(0,4)/e/\epsilon},{(-1,2)/f/\zeta}}
    {
    \node[vertex] (\name) at \pos {$\txt$}; 
    }

\foreach \pos/\name in
{{(-1,-1)/1},{(-2,-2)/2},{(3,-1)/3},{(4,-2)/4},{(4,2)/5},
{(5,2)/6},{(-2,2)/7},{(-3,2)/8},{(-1,5)/9},{(-2,6)/10},{(3,5)/11},
{(4,6)/12}}
   \node[vertex] (\name) at \pos {$\name$}; 

% Connect vertices with edges
\foreach \source/ \dest /\weight in {a/b/, b/c/, c/d/, d/e/, 
e/f/,f/a/,a/1/,1/2/,b/3/,3/4/,c/5/,5/6/,f/7/,7/8/,e/9/,9/10/,d/11/,11/12/}
    \path[edge] (\source) -- node[weight] {$\weight$} (\dest);

\end{tikzpicture}
\end{frame}
\end{document}

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