Graphviz: Place edge label on the other side

Question

This may be related to How to place edge labels ON edge in graphviz: I have the following graph, which I visualize using the command dot -Teps g.dot > g.eps:

graph triple {     node [shape=box]; User; Object; Tag;     node [shape=diamond,style=filled]; Triple;     {         User -- Triple [label = "1"];         Object -- Triple [label = "1"];     }     {         rank=same;         User;         Object;     }     Triple -- Tag [label="n"]; } 

I would like the result to be more symmetric by putting the label between User and Triple on the left side of the graph.

Answer 1

Manual placement of edge labels cannot be done with graphviz.

However, you could use the headlabel, labeldistance and labelangle attributes:

graph triple { node [shape=box]; User; Object; Tag; node [shape=diamond,style=filled]; Triple;     {         User   -- Triple [headlabel = "1", labeldistance=2.5, labelangle=20];         Object -- Triple [headlabel = "1", labeldistance=2.5, labelangle=-20];     }     {         rank=same;         User;         Object;     }     Triple -- Tag [label="n"]; } 

Output: