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Mail Archives: geda-user/2017/02/11/06:46:21

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Date: Sat, 11 Feb 2017 12:44:04 +0100 (CET)
From: Roland Lutz <rlutz AT hedmen DOT org>
To: "Peter Clifton (petercjclifton AT googlemail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject: Re: [geda-user] gschem gnetlist bug/feature
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On Sat, 11 Feb 2017, Peter Clifton (petercjclifton AT googlemail DOT com) [via
geda-user AT delorie DOT com] wrote:
> On 10 Feb 2017 22:18, "Roland Lutz" <rlutz AT hedmen DOT org> wrote:
>> If you want to add a power symbol purely for decoration, use a symbol
>> without a net= attribute and set graphical=1.  Otherwise (even when
>> setting graphical=1 on a regular power symbol) the net will be
>> connected to Vcc, or whatever net name the power symbol specifies.
>
> That seems somewhat counter to my recollection. I thought graphical=1
> caused a symbol to be ignored completely? (Has this changed, or my
> recollection faulty?)

IMHO, the name of the graphical= attribute is misleading; this has never 
been how this attribute works.  A component with graphical=1 is not listed 
in the netlist as a regular package; instead, it is added to the list of 
graphical objects.  But otherwise, it behaves like any other component: it 
can have pins, be connected to a net, or have pin= attributes.

Graphical components are commonly used for the titleblock and for 
attaching information to a net (e.g, "nc" symbols).  They can be queried 
from the backend via the function graphical-objs-in-net-with-attrib-get-attrib.

>> you could use the experimental branch which allows you to set
>> netname=xxx on the power symbol to remove the need for the :1 suffix).
>
> Which experimental branch is that?

The branch home/rlutz/experimental in the geda-gaf repository:
http://www.delorie.com/archives/browse.cgi?p=geda-user/2015/09/03/09:34:23

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