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Date:	Tue, 11 Dec 2012 14:11:30 -0500
Message-Id:	<201212111911.qBBJBUG3024801@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	geda-user AT delorie DOT com
In-reply-to:	<alpine.DEB.2.00.1212111935190.26605@igor2priv>
	(gedau AT igor2 DOT repo DOT hu)
Subject:	Re: [geda-user] Find rat lines
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	<alpine DOT DEB DOT 2 DOT 00 DOT 1212110530020 DOT 26605 AT igor2priv> <alpine DOT DEB DOT 2 DOT 00 DOT 1212111935190 DOT 26605 AT igor2priv>
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> The propagation idea (parallel propagation of nets from all pins 
> finding the first collision) would work. We've spent some time trying to 
> construnct more examples to see how it'd perform. We think it'd 
> not find the "real cause" of the short, but something closer to it than 
> the current short highlight does.

I've considered this idea also, and agree it's most likely to work.

Given:

* Pins obviously connect to "their" net

* polygons likely connect to the net they have the most via'd pins to

you could probably give a fuzzy-logic guess as to what each
trace/arc/poly connects to.  If the fuzzy value drops below, say, 90%,
color code the trace.

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