labelloc

type: string, default: "t" (clusters) , "b" (root graphs) , "c" (nodes)

For graphs and clusters, only labelloc=t and labelloc=b are allowed, corresponding to placement at the top and bottom, respectively.

By default, root graph labels go on the bottom and cluster labels go on the top.

Note that a subgraph inherits attributes from its parent. Thus, if the root graph sets labelloc=b, the subgraph inherits this value.

For nodes, this attribute is used only when the height of the node is larger than the height of its label.

If labelloc=t, labelloc=c, labelloc=b, the label is aligned with the top, centered, or aligned with the bottom of the node, respectively.

By default, the label is vertically centered.

digraph {
  labelloc="t"
  label="Title"
  a -> b
}

digraph {
  labelloc="b"
  label="Title"
  a -> b
}

digraph {
  label="Graph Title"
  subgraph cluster_t {
    labelloc="t"
    label="Cluster Top"
    a -> b
  }
  subgraph cluster_b {
    labelloc="b"
    label="Cluster Bottom"
    c -> d
  }
}

digraph {
  t [labelloc=t]
  c [labelloc=c]
  b [labelloc=b]
}

• Nodes
• Graphs
• Clusters

Search the Graphviz codebase for "labelloc"