concentrate

If true, use edge concentrators

type: bool, default: false

This merges multiedges into a single edge and causes partially parallel edges to share part of their paths. The latter feature is not yet available outside of dot.

Example
digraph {
    concentrate=true
    a -> b [label="1"]
    c -> b
    d -> b
}
Valid on:
  • Graphs

Search the Graphviz codebase for "concentrate"