[Dot] Concentrate drops edges from two vertex cycles
Ported Issue from Mantis Original ID: 115 Reported By: Alex Harper
SEVERITY: MAJOR Submitted: 2002-09-20 20:58:21
OS: X86-LINUX-2.4.9 REDHAT
VERSION: 1.8.9
DESCRIPTION
With edge concentration on dot drops a cyclic edge between two vertices
in a cycle.
In previous versions (1.7.x releases) this was rendered correctly as a
bidirectional edge between the vertices. In 1.8 (1.8.5 and
1.8.9 were tested) the edge is rendered as a one-way arrow. Turning off
concentration eliminates the issue.
As for severity... since I saw no mention of changes to concentrate behavior in the changelog I'm assuming this is a bug.
STEPS TO REPRODUCE
digraph G { /* Use edge concentration */ concentrate=true;
1 [ label = "node1" ]; 2 [ label = "node2" ]; 1 -> 2; 2 -> 1;
} /* graph close */
Edited by Matthew Fernandez