There are multiple questions e.g. here, here, and here. Asking how to force straight edges for connectors in Graphviz (dot).
The answers include:
splines=line;splines=false;- compiling with neato
- and a longer example that creates straight lines by creating invisible nodes.
(How) can I force straight connectors from the top of one record to another with this example without resorting to invisible nodes (if possible)?
digraph select {
splines=line;
// splines=false;
node [shape=record];
rec1 [label="<f0> left|<f1> middle|<f2> right"];
rec1:f0:n -> rec1:f2:n;
}
Edit: a question was asked - how can the record have a connecting edge if it's one record and how can that not be straight?
A record can point at different parts of itself. The question is how to get that to be straight i.e. go out turn at a 90 degree angle, go, turn at a 90 degree angle, and connect?
i.e. not a curved edge:
