Number: 1026
Title: Overlapping edges using ports
Submitter: Emden R. Gansner
Date: Wed Sep 27 12:14:11 2006
Subsys: Dot
Version: 2.9
System: *-*-
Severity: minor
Problem:
Two edges are drawn on top of each other.

The code creates classes of edges based on shared end points is missing this case, where the end points are the same only the direction is different.
Input:

digraph G {
    node[shape=box]
    bonn:s -> berlin
    berlin -> bonn:s
}
Input file: b1026.ps
Owner: erg
Status: *