CODEWITHSUNDEEP
graphvizsubgraph
danielvast
danielvast

Reputation: 93

Force GraphViz to align subgraphs one below other

I have a graph with 3 subgraphs that are placed one along the other, I want them to be stacked one on top each other (I don't want the direction of the content of the subgraph to change).

The simple example:

digraph G {
rankdir=TB;
    subgraph cluster_lkg{
        subgraph cluster_sentence_1{
            "A1","A2","A3"
            "A1" -> "A2"
            "A1" -> "A3"
        }
        subgraph cluster_concepts_1{
            "B1","B2","B3"
            "B1" -> "B2"
            "B1" -> "B3"
        }
    }
    subgraph cluster_fkgs{
            "C1","C2","C3"
            "C1" -> "C2"
            "C1" -> "C3"
    }

}

Upvotes: 2

Views: 3632

Answers (1)

vaettchen
vaettchen

Reputation: 7659

You need to connect the clusters (or, more precisely, the nodes within the clusters) in order to make your rankdir = TB effective. You can do so by using invisible edges:

digraph G 
{
    rankdir=TB;    
    subgraph cluster_lkg
    {
        subgraph cluster_sentence_1
        {
            "A1","A2","A3"
            "A1" -> "A2"
            "A1" -> "A3"
        }
        subgraph cluster_concepts_1{
            "B1","B2","B3"
            "B1" -> "B2"
            "B1" -> "B3"
        }
        //A1 -> B1;
    }
    subgraph cluster_fkgs
    {
            "C1","C2","C3"
            "C1" -> "C2"
            "C1" -> "C3"
    }
    edge[ style = invis ];
    { A2 A3 } -> B1;
    { B2 B3 } -> C1;
}

which yields

enter image description here

The node C1 is misaligned - I guess this comes from the nesting the clusters but I have no recipe against it. Hope it helps anyway.

Upvotes: 1

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