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Subject: Re: [geda-user] ideas on slotting and mechanisms for
 grouping/associating heterogenous symbols.
To: geda-user AT delorie DOT com
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From: John Griessen <john AT ecosensory DOT com>
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Date: Sat, 2 Jan 2016 12:51:20 -0600
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On 01/02/2016 12:43 PM, DJ Delorie wrote:
>   Consider this schematic:
>
> http://www.delorie.com/pcb/symsym.png
>
> In layout, you swap one of those gates with a gate in U2 (elsewhere).
>
> How do you know which gate you swapped?
>
> There's nothing in the schematic to make those two gates unique, other
> than where they fit in the geometry of the page.
>
> Even solving that problem when you*don't*  allow swapping between
> packages, is hard.

It is the automatic drawing of net lines problem.
Code not existing yet, and conceptually AI.