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Message-ID:	<4EED24D7.3090305@penguindevelopment.org>
Date:	Sun, 18 Dec 2011 00:25:11 +0100
From:	Link <link AT penguindevelopment DOT org>
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To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] Useful things (in gschem)
References:	<20111217222836 DOT 2A0CB81FD92A AT turkos DOT aspodata DOT se>
In-Reply-To:	<20111217222836.2A0CB81FD92A@turkos.aspodata.se>
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Reply-To:	geda-user AT delorie DOT com

On 17/12/11 23:28, Karl Hammar wrote:
> What would be useful is (in gschem):
>
> . to be able to say to gschem that this and this ... and this pin are
>    on the same net; connect them!
>
> . when I move a component, the connected net lines follow in some
>    ordered fashion, and don't happen to connect to some other nets lines
>
> Regards,
> /Karl Hammar
>
> -----------------------------------------------------------------------
> Aspö Data
> Lilla Aspö 148
> S-742 94 Östhammar
> Sweden
> +46 173 140 57
>
>

For the first point, do you mean you want gschem to actually draw a net 
between those pins, or just to have them be connected in the netlister 
output? Because the latter can be done by either adding a net-attribute 
to the component symbols (e.g. add an attribute "net=Vcc:8" to a 
component to connect pin 8 of that component to Vcc; plenty of examples 
in the "74-series logic" and "4000-series logic" categories), or 
attaching one of the net-labelling symbols (e.g. generic-power.sym, 
input-2.sym, output-2.sym, io-1.sym...) and setting the net-attribute on 
that. If you do mean letting gschem auto-draw the nets, I'd say that if 
a net is too complicated to draw manually, it's probably better to use 
the aforementioned net-labelling symbols anyway.

As for your second point, agreed. I've been stung by select->move->see 
interconnection/broken connection mess->undo->lose selection->headdesk 
cycles quite a few times. FWIW, the "undo deselects everything" deal is 
annoying as well, especially if you have a cluttered schematic.


Peter

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