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Date: Tue, 14 Jul 2015 09:01:43 +0200
From: "Gabriel Paubert (paubert AT iram DOT es) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: "Gabriel Paubert (paubert AT iram DOT es) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject: Re: [geda-user] The new to do
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On Tue, Jul 14, 2015 at 08:49:49AM +0200, Gabriel Paubert (paubert AT iram DOT es) [via geda-user AT delorie DOT com] wrote:
> On Mon, Jul 13, 2015 at 11:24:37PM +0000, Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> > On Mon, Jul 13, 2015 at 9:37 PM, Dave McGuire (mcguire AT neurotica DOT com)
> > [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
> > > On 07/13/2015 05:25 PM, John Doty wrote:
> > >>> Actually, the functionality I envision IS a gschem issue, albeit a
> > >>> very minor one.  I've seen a lot of schematics (I think done in
> > >>> Eagle but I'm not sure) that have something that sorta looks like a
> > >>> lollipop pointing to a trace, with "20mils" or whatever in the
> > >>> circle.  Of course I can (and do) attach any arbitrary attribute to
> > >>> anything, and I think this is one of gschem's great strengths, but
> > >>> there needs to be (IMO) a bit of GUI work for this feature as
> > >>> well.
> > >>
> > >> No work at all in either gschem or the gnetlist front end is needed
> > >> to do that. There is already a function in the gnetlist back end API
> > >> that rejoices in the name
> > >> "gnetlist:graphical-objs-in-net-with-attrib-get-attrib". It retrieves
> > >> an arbitrary attribute from a “graphical=1” symbol attached to a net.
> > >> So, draw your lollipop as a symbol, give it attributes graphical=1
> > >> and trace-width=20mil. Attach it to your net.
> > >
> > >   Ah-HA!  Most excellent, thank you!
> > 
> > Fantastic! Thank you!
> > (I now have to wonder how much of this stuff is in the manual/wiki)
> 
> It works well, I've used it for the only layout I've subcontracted to the
> person which should be doing this job in our institute (but she's in the
> other place 1500km from here). Actually I wrote a gnetlist backend for
> CADSTAR which is what she uses (it works, but uses a lot of local
> conventions so is probably not publishable).
> 
> In any case, I've attached my symbols for 50Ω tracks and differential
> pairs. The differential pair is more cumbersome to use (I need to add
> a unique bus_name attribute to each differential pair symbol for CADSTAR
> not to make a mess of it.

And of course I did not attach them!

    Gabriel

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