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Date: Mon, 10 Dec 2012 12:12:31 -0500
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In-reply-to: <50C6120F.5000701@ecosensory.com> (message from John Griessen on
	Mon, 10 Dec 2012 10:47:11 -0600)
Subject: Re: [geda-user] Router fun with rubberbands
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> Does the autorouter in the current PCB come from MUCS?  I've always
> liked the annealing concept, and have seen some high end tools use it.

No, the three autorouters reflect three independent works, and three
different generations of autorouting - the MUCS router is gridded,
PCB's current autorouter is gridless but rectilinear, and the
toporouter is topological (triangular).

Whether each autorouter uses annealing or not is up to that
autorouter.  I'm not sure what PCB's current autorouter does.