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Subject: Re: [geda-user] Difference between attached and detached attributes
From: John Doty <jpd AT noqsi DOT com>
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Date: Sat, 18 Jul 2015 17:20:54 -0600
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On Jul 18, 2015, at 4:09 PM, Roland Lutz <rlutz AT hedmen DOT org> wrote:

> When creating a component, some floating attributes from the symbol are
> usually copied to the schematic and automatically attached to the symbol,
> hiding the inherited attributes.  This is called "attribute promotion".
> The default set of promoted attributes is: footprint, device, value,
> model-name, and symversion.

Yes, and this is a bit strange. What does it accomplish? If you want to edit the attribute, you can promote it. If you don’t, why promote it at all?

The whole idea of “promotion” is a bit clumsy and confusing. Wouldn’t it be clearer just to have “default” and “edited” attributes?

Then there’s a little failure of orthogonal design: gschem cannot edit an embedded symbol. If it could, pin swaps and one-off modified symbols could be easier.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com