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I'm wondering if it's possible to make this sort of diagram in Latex:

enter image description here

This question seems like a good place to start, but I don't see how to replace the nodes with circles. Also, I couldn't find any instructions for making the marks on the perimeter of the circle, as in my drawing. Thanks for any help!

Community
  • 1
Ducky
  • 113

1 Answers1

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\documentclass[french]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[a4paper]{geometry}
\usepackage{babel}
\usepackage{amsmath,amsthm, amssymb, latexsym}
\usepackage{tikz}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\draw[thick] (0cm,0cm) circle(1cm);
\draw[thick] (3cm,0cm) circle(1cm);
\path node[anchor=south] at (0,1) {e};
\path node[anchor=north] at (0,-1) {b};
\path node[anchor=east] at (-1,0) {ab};
\path node[anchor=west] at (1,0) {a};
\path node[anchor=south] at (3,1) {eH};
\path node[anchor=north] at (3,-1) {bH};
\path[->] (-1,0) edge [out=-120, in=220] (3,-1);
\path[->] (0,-1) edge [out=-20, in=200] (3,-1);
\path[->] (0,1) edge [out=20, in=-200] (3,1);
\path[->] (1,0) edge [out=40, in=170] (3,1);
\end{tikzpicture}
\end{document}
Jérôme Dequeker
  • 628
  • There might be other ways, easier or more beautiful. Anyway, this code works.

    I wanted to name the defined nodes (for example, the node at (0,1) could be named as "e", it would be easier to plot the arrows later). I didn't remember how to do that, that's why I had to repeat the coordinates again, which can lead to errors.

     – Jérôme Dequeker Feb 05 '16 at 07:10
  • Thanks! It looks good. Is the "french" part of the document class necessary? Which package uses it? – Ducky Feb 05 '16 at 15:49
  • No it's not. You didn't put a MWE, so I took one of mine. And because I'm french, I automatically load the french option. I also think babel package is not needed. – Jérôme Dequeker Feb 05 '16 at 17:17
  • Great, thanks for the help! I only ask because it seemed to conflict with another package I was using – Ducky Feb 05 '16 at 17:50
  • You can also remove babel, amsmath, amsthm, amssymb, latexsym and tikz packages. – Jérôme Dequeker Feb 05 '16 at 18:24