<font face="arial" size="2"><p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">The Erlang digraph library looks like it may provide an interesting way to diagram scenes in a novel.</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">1> Scene10 = digraph:new().</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Imagine:</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Setting:"park"</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Character1:"Franco"</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Character2:"Sophia"</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">2> digraph:add_vertex(Scene10, "Park", "Night").</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">3> digraph:add_vertex(Scene10, "Franco", "Old and fat").</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">4> digraph:add_vertex(Scene10, "Sophia", "Young and beautiful").</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">5> digraph:add_edge(Scene10, "Franco", "Sophia", "loves").</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">OK to here EXCEPT command 5 returns:</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">['$e'|0]</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">6> digraph:add_edge(Scene10, "Sophia", "Franco", "hates").</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">OK to here EXCEPT command 5 returns:</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">['$e'|0]</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">6> digraph:add_edge(Scene10, "Sophia", "Franco", "hates").</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">['$e'|1]</p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;"> </p>
<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Wah!</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Question 1: How do I see labels?</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Question 2: Be cool to add a sequence of actions. I can probably figure this out, but is there an elegant solution?</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Question 3: I'd love to visualize the graph. I see it can be done in Elixir. But I don't know Elixir. Has anyone programmed a way to visualize digraphs in Erlang?</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Comment: Digraph is crying out for a comprehensive tutorial. I'd love to do it, but just don't know enough yet.</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">Many thanks,</p>
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<p style="margin:0;padding:0;font-family: arial; font-size: 10pt; overflow-wrap: break-word;">LRP</p>
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