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Problem with DirectedGraphLayout With Loopbacks [message #164073]

Mon, 17 January 2005 09:42

Eclipse User

Originally posted by: mmacfadden.redoaksw.com

Hello,

I have been having some trouble managing a graph that has a loopback
connection. The graph I have been working on for testing purposes has
only 1 node and 1 connection. The target and source of the connection
is the one node that is in the graph. The real graphs I intend to work
with are much more complex. However this is the minimal case that
illustrates my problem.

The problem arises when I try to use the DirectedGraphLayout class to
layout my graph. The process gets stuck in an infinite loop.
Specifically inside the InitialRankSolver classes visit method which is
called by the DirectedGraphLayout.visit() method. I don't really know
enough about how these classes work to know what is going on other than
that is seems that the loopback connection seems to cause a problem.

Has anyone else seen this behavior. Any suggestions? I would be happy
to provide more information. Thanks.

~Mike

Re: Problem with DirectedGraphLayout With Loopbacks [message #164128 is a reply to message #164073]

Mon, 17 January 2005 11:00

Eclipse User

Originally posted by: none.us.ibm.com

https://bugs.eclipse.org/bugs/show_bug.cgi?id=45759

"Michael MacFadden" <mmacfadden@redoaksw.com> wrote in message
news:csgisb$5ki$1@www.eclipse.org...
> Hello,
>
> I have been having some trouble managing a graph that has a loopback
> connection. The graph I have been working on for testing purposes has
> only 1 node and 1 connection. The target and source of the connection is
> the one node that is in the graph. The real graphs I intend to work with
> are much more complex. However this is the minimal case that illustrates
> my problem.
>
> The problem arises when I try to use the DirectedGraphLayout class to
> layout my graph. The process gets stuck in an infinite loop. Specifically
> inside the InitialRankSolver classes visit method which is called by the
> DirectedGraphLayout.visit() method. I don't really know enough about how
> these classes work to know what is going on other than that is seems that
> the loopback connection seems to cause a problem.
>
> Has anyone else seen this behavior. Any suggestions? I would be happy to
> provide more information. Thanks.
>
> ~Mike

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