added pair of pants

tikz/topology-pair-of-pants/topology-pair-of-pants.tex

@@ -4,6 +4,15 @@
 
 \begin{document}
     \begin{tikzpicture}[tqft/flow=east]
-    \node[tqft/pair of pants,draw] (a) {};
+        \node[tqft/pair of pants,draw,rotate=-180] (a) {};
+        \draw (-1.02,-1) ellipse (0.2cm and 0.35cm);
+        \draw (-1.02,+1) ellipse (0.2cm and 0.35cm);
+        \draw[dashed] (1,0) ellipse (0.175cm and 0.35cm);
+
+        \draw (2.3,0) ellipse (0.7cm and 1.5cm);
+        \draw (2.3,+0.5) circle (0.3cm);
+        \draw (2.3,-0.5) circle (0.3cm);
+
+        \node at (1.38,0) {$\stackrel{\sim}{=}$};
     \end{tikzpicture}
 \end{document}