Graphviz (DOT) Captions

Question

I need to print a large number of graphs using Graphviz DOT. To distinguish which input each graph corresponds to, I want to also have a caption for each graph. Is there anyway to embed this into the DOT representation of the graphs.

Answer 1

You can use label to add a caption to the graph.

Example:

digraph {     A -> B;     label="Graph";     labelloc=top;     labeljust=left; } 

labelloc and labeljust can be used to determine top/bottom and left/right position of the graph label.

All the details and other attributes that can be used to modify the label (font etc) in the graphviz attribute reference.

Tip: Define the graph label end of your dot file, otherwise subgraphs will inherit those properties.

Answer 2

Graph's can have attributes just like nodes and edges do:

digraph {     graph [label="The Tale of Two Cities", labelloc=t, fontsize=30];     node [color=blue];     rankdir = LR;     London -> Paris;     Paris -> London; } 

That dot file produces this graph.