[graphviz-interest] Avoiding label overlapping

Hi,

The following command produces a graph where it is hard to tell which
label is for a--d and which is for b--c. Is there a way to
automatically place labels so that it is easier to tell which edge a
label is for? Thanks!

~/linux/test/graphviz/lang/dot/digraph/overlap_label$ cat main.dot
graph
{
  splines=true;
  a [pos="0,0"];
  b [pos="100,0"];
  c [pos="0,100"];
  d [pos="100,100"];
  a -- b [label="a--b"];
  a -- c [label="a--c"];
  a -- d [label="a--d"];
  b -- c [label="b--c"];
  b -- d [label="b--d"];
  c -- d [label="c--d"];
}
~/linux/test/graphviz/lang/dot/digraph/overlap_label$ dot -Tsvg -Knop
main.dot -o main.svg

-- 
Regards,
Peng
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