notebook/figures/def__hypergraph.asy at master · v--/notebook · GitHub

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unitsize(1.5cm);

from notebook access grdraw, ExampleFlowGraph;

ExampleFlowGraph fg = ExampleFlowGraph();
fg.draw_vertices(shift_v6=true);

grdraw.edge(fg.v1, fg.v2, L=Label('$e_1$', align=2NW));
grdraw.edge(fg.v1, fg.v3, L=Label('$\widehat{e_2}$', align=2NE), bend=0.1, dash=true);
grdraw.edge(fg.v1, fg.v3, L=Label('$e_2$', align=2SW), bend=-0.1);
grdraw.edge(fg.v2, fg.v4, L=Label('$e_3$', align=2N));
grdraw.edge(fg.v3, fg.v4, L=Label('$e_4$', align=2NW));
grdraw.edge(fg.v3, fg.v5, L=Label('$e_5$', align=2S));
grdraw.edge(fg.v4, fg.v6, L=Label('$e_6$', align=2NE), bend=0.1);
grdraw.edge(fg.v5, fg.v6, L=Label('$e_7$', align=2SE));
grdraw.edge(fg.v6, fg.v4, L=Label('$\widehat{e_6}$', align=2SW), bend=0.1, dash=true);
grdraw.loop(fg.v6, L=Label('$e_8$', align=E), dash=true);
grdraw.hyperedge(new pair[] {fg.v3, fg.v4, fg.v5}, L=Label('$e_9$'));