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Marking/labeling node-edge connection points with graphviz

With Graphviz, I know I can label edges and vertices. But what if I want to label some of the connections? That is, label some points where a specific edge meets a specific vertex? Is that possible?

Notes:

Solution

  • You can use the taillabel and headlabel edges attributes. For example:

    digraph G {
        rankdir="LR";
        a->b [taillabel="from"; headlabel="to"]
        b->c [taillabel="from"; headlabel="to"]
}

    produce:

    example