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Mail Archives: geda-user/2012/07/19/16:56:44

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Message-ID: <500870BF.3060101@sbcglobal.net>
Date: Thu, 19 Jul 2012 13:40:31 -0700
From: "Girvin R. Herr" <girvin DOT herr AT sbcglobal DOT net>
User-Agent: Thunderbird 2.0.0.24 (X11/20100228)
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Symbol attributes
References: <50084839 DOT 9080804 AT sbcglobal DOT net> <BAABE0DC-A2D0-4078-83F1-CDF801699318 AT noqsi DOT com>
In-Reply-To: <BAABE0DC-A2D0-4078-83F1-CDF801699318@noqsi.com>
Reply-To: geda-user AT delorie DOT com

John,
Thank you very much.  That explains my observations and gives me some 
work-arounds. 
I read about attribute promotion somewhere but I never really understood 
how it affects me until now.
Thanks.
Girvin


John Doty wrote:
> On Jul 19, 2012, at 11:47 AM, Girvin R. Herr wrote:
>
>   
>> My question is, what determines an attribute as basic (schematic-editable) or "Inherited" (not schematic-editable)?
>> Or, more to the point: How do I set the editability of an attribute in an instantiated symbol?
>>     
>
> You're talking about "attribute promotion". An attribute in the symbol may be "promoted" to an attribute attached to a specific instance of the the symbol in the schematic. That's how attributes become editable.
>
> You can manually promote an attribute by right-clicking on it in the attributes menu. Or you may simply attach an attribute to a symbol with a name identical to an unpromoted attribute.
>
> There are arcane rules for automatically deciding which attributes are to be promoted. I usually turn as much of that off as possible by the use of a line like:
>
> (always-promote-attributes '("refdes"))
>
> This makes wholesale changes of attributes by editing symbols more predictable and useful.
>
> John Doty              Noqsi Aerospace, Ltd.
> http://www.noqsi.com/
> jpd AT noqsi DOT com
>
>
>
>
>   

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