\documentclass[a4paper]{article} \usepackage{dottex} \begin{document} \def\dotwidth{.5\textwidth} \begin{dotpic} a -> b; a -> c; b -> d; d -> a; \end{dotpic} \def\dotwidth{.8\textwidth} \begin{neatopic} a -- b; b -- c; a -- g; e -- f; g -- c; \end{neatopic} \end{document}