\documentclass[tikz]{standalone} \usepackage[permutation,huge,neon]{causets} \usetikzlibrary{fit,shapes.geometric} \begin{document} \begin{tikzpicture} \begin{scope}[xshift=3cm, yshift=-1cm] \drawpcauset{5,2,7,3,6,1,4} \draw[red, double] (0, 0) circle[radius=0.1]; \end{scope} \node[draw=blue, inner sep=1pt, thick, ellipse, fit=(E4) (E6) (E7)] (Finf) {}; \node[draw=blue] (FinfLabel) at (6.5, -0.5) {future infinity}; \node[draw=red] (centerLabel) at (0.5, -0.5) {center}; \node[draw=green!50!black] (myEventLabel) at (5.5, -2.5) {event (E2)}; \draw[ultra thick, blue, ->] (FinfLabel) -- (Finf); \draw[ultra thick, red, ->] (centerLabel) -- (3, -1); \draw[ultra thick, green!50!black, ->] (myEventLabel) -- (E2); \end{tikzpicture} \end{document}