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POFamily tree layout with Dot/GraphViz
 

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  1. POFamily tree layout with Dot/GraphViz
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    <p>I am trying to draw a family tree with Dot and GraphViz.</p> <p>This is what I currently have: </p> <pre><code># just graph set-up digraph simpsons { ratio = "auto" mincross = 2.0 # draw some nodes "Abraham" [shape=box, regular=1, color="blue"] ; "Mona" [shape=box, regular=1, color="pink"] ; "Clancy" [shape=box, regular=1, color="blue"] ; "Jackeline" [shape=box, regular=1, color="pink"] ; "Herb" [shape=box, regular=1, color="blue"] ; "Homer" [shape=box, regular=1, color="blue"] ; "Marge" [shape=box, regular=1, color="pink"] ; "Patty" [shape=box, regular=1, color="pink"] ; "Selma" [shape=box, regular=1, color="pink"] ; "Bart" [shape=box, regular=1, color="blue"] ; "Lisa" [shape=box, regular=1, color="pink"] ; "Maggie" [shape=box, regular=1, color="pink"] ; "Ling" [shape=box, regular=1, color="blue"] ; # creating tiny nodes w/ no label, no color "ParentsHomer" [shape=diamond,style=filled,label="",height=.1,width=.1] ; "ParentsMarge" [shape=diamond,style=filled,label="",height=.1,width=.1] ; "ParentsBart" [shape=diamond,style=filled,label="",height=.1,width=.1] ; # draw the edges "Abraham" -&gt; "ParentsHomer" [dir=none, weight=1] ; "Mona" -&gt; "ParentsHomer" [dir=none, weight=1] ; "ParentsHomer" -&gt; "Homer" [dir=none, weight=2] ; "ParentsHomer" -&gt; "Herb" [dir=none, weight=2] ; "Clancy" -&gt; "ParentsMarge" [dir=none, weight=1] ; "Jackeline" -&gt; "ParentsMarge" [dir=none, weight=1] ; "ParentsMarge" -&gt; "Marge" [dir=none, weight=2] ; "ParentsMarge" -&gt; "Patty" [dir=none, weight=2] ; "ParentsMarge" -&gt; "Selma" [dir=none, weight=2] ; "Homer" -&gt; "ParentsBart" [dir=none, weight=1] ; "Marge" -&gt; "ParentsBart" [dir=none, weight=1] ; "ParentsBart" -&gt; "Bart" [dir=none, weight=2] ; "ParentsBart" -&gt; "Lisa" [dir=none, weight=2] ; "ParentsBart" -&gt; "Maggie" [dir=none, weight=2] ; "Selma" -&gt; "Ling" [dir=none, weight=2] ; } </code></pre> <p>If I run this through dot (<code>dot simpsons.dot -Tsvg &gt; simpsons.svg</code>), I get the following layout: <img src="https://i.imgur.com/gxSzS.png" alt="Original, made by dot/graphviz"></p> <p>However, I'd like the edges to be more "family tree"-like: a T-junction between two married persons with the vertical line of the T again branching in an upside-down T-junction with small subdivisions for each of the children, like this mock-up, done in KolourPaint:</p> <p><img src="https://i.imgur.com/H7jAX.png" alt="what I would like to achieve"></p> <p>What is the dot syntax that I have to use to achieve this?</p>
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