X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
X-Google-DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=google.com; s=20120113;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:content-type:content-transfer-encoding:x-gm-message-state;
	bh=/gd6e4UDM4A+j42tQa+H77ZuVsebqkXsR5JCh2B3E/8=;
	b=jYM/jTumT4owtGL0DN86X8Sxe2MYDyrKbQ1Qi7Nu7yZ39lGEgSY8qMsmd/p69IMmrG
	8lSpNUS8d4bmQJQsdV8UEkde92bXjDkhfTZrRJTWeJEHJG7qKdhcgeIvMMm02r3HssUm
	4aaiUsUvJ5vz+MmrS2JJM0nwT0tUHiJBJPiFMRPdzx8J+2WEKxoVQhpKTzd4Ly5ONDjZ
	VvBWQgQBzdzuaI929RuM4Spa3voLvZOvSKMNrGo+ixQ7sA6UcGtZEYXZDG4cDx7dbgpO
	ALHK60p8k1V5y8XHTBAceZWMhZmI+/LKNMRVAGij8spNESfoJnx7CKCCVS4kBM4nNDtB
	cKnw==
MIME-Version:	1.0
In-Reply-To:	<CAN0Jx-9BcQBbeo8J-u=wK1H1vaga41-KHHkz9x=0knBNpv_sow@mail.gmail.com>
References:	<20121204183305 DOT 6b04c0dc AT jive DOT levalinux DOT org>
	<20121208112649 DOT 388a9d22 AT jive DOT levalinux DOT org>
	<1355011808 DOT 19390 DOT 8 DOT camel AT localhost>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1212120740300 DOT 26605 AT igor2priv>
	<CAN0Jx-_+HNgHFNwjNkZRos--yRa9KWLeijjaE7zh5imjp5omuw AT mail DOT gmail DOT com>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1212150453530 DOT 26605 AT igor2priv>
	<CAN0Jx-8mr2XmLHr7AzcTygk205H1H4_X1Y9VcQHw3zia5eGynQ AT mail DOT gmail DOT com>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1212180816280 DOT 26605 AT igor2priv>
	<CAN0Jx--X_KEzwNb2oB6deZT_M-NCFD0aSx5cqA8h8+dHdha=Ng AT mail DOT gmail DOT com>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1212181025420 DOT 26605 AT igor2priv>
	<7401652465A13245B1C94ECDC9747C118F80613798 AT wr3 DOT warrenrogersassociates DOT com>
	<CAN0Jx-9BcQBbeo8J-u=wK1H1vaga41-KHHkz9x=0knBNpv_sow AT mail DOT gmail DOT com>
Date:	Tue, 18 Dec 2012 12:19:26 -0800
Message-ID:	<CAN0Jx-9Wa6FKCT7ZXJibrTO8a-UjhSHpKEwUrhGUvCpVHJPuLg@mail.gmail.com>
Subject:	Re: [geda-user] Find rat lines - summary
From:	Russell Dill <Russ DOT Dill AT asu DOT edu>
To:	geda-user AT delorie DOT com
X-Gm-Message-State:	ALoCoQmuTjoYDPU+avKIPiSRMoxBzs3Va90WneNWD+FaF3SMSSu4OTyrLF50gNZyctCYHw+a4OBr
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id qBIKJUXW022701
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

On Tue, Dec 18, 2012 at 12:15 PM, Russell Dill <Russ DOT Dill AT asu DOT edu> wrote:
> On Tue, Dec 18, 2012 at 5:56 AM, David C. Kerber
> <dkerber AT warrenrogersassociates DOT com> wrote:
>>
>>
>>> -----Original Message-----
>>> From: gedau AT igor2 DOT repo DOT hu [mailto:gedau AT igor2 DOT repo DOT hu]
>>> Sent: Tuesday, December 18, 2012 4:28 AM
>>> To: geda-user AT delorie DOT com
>>> Subject: Re: [geda-user] Find rat lines - summary
>>>
>>>
>>>
>>> On Tue, 18 Dec 2012, Russell Dill wrote:
>>>
>>> >> Wheter it's highlighting or drawing an extra rubber band
>>> line doesn't make
>>> >> much difference as too much of the existing copper would be marked.
>>> >
>>> > Let me try to be more clear, I'm not talking about highlighting or
>>> > marking copper, I'm just talking about drawing an ant trail.
>>> >
>>>
>>> Clear. The problem is _where_ you draw it. If you draw it
>>> over all the
>>> copper of both nets, it's not very useful; if you draw it between all
>>> pins of the two nets, it's not very useful either. Can you please
>>> describe where would you draw it in the H example (net1=a,b net2=C,D):
>>>
>>> a --+-- b
>>>      |
>>> C --+-- D
>>
>> It's clear to me that he means to draw the line from any one single pin on net 1 to any one single pin on net 2.  So for your case, it would draw from A->C, or A->D, or B->C or B->D, but only ONE of those 4 possible paths.  Once you trace that single route, you will find where the short is.  Or if there is more than one short, this will allow you to find them one at a time.
>
> Yes, thanks. I first encountered this method when using the quake map
> editor as a method of showing a "leak" (short circuit) between outside an
> object and inside an object.

https://developer.valvesoftware.com/wiki/File:Hammer_leaks5.jpg

- Raw text -