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Date:	Tue, 20 Nov 2012 10:29:19 -0500
Message-ID:	<CACPio-5xm2w_4DrP=APsp4tFb6Q0xeGnt0G3xVik+++-Y2rG4Q@mail.gmail.com>
Subject:	Re: [geda-user] Re: Objects of objects
From:	Nathan Stewart <therealnathanstewart AT gmail DOT com>
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On Mon, Nov 19, 2012 at 7:46 PM, Kai-Martin Knaak <kmk AT familieknaak DOT de>wrote:

> karl AT aspodata DOT se (Karl Hammar) schrieb am  2. November 2012:
> there are two more general concepts that are missing in gschem format:
>
> 1) parameters that can be passed to sub sheets
>
> 2) a way to manipulate the parameters during interpretation of the
> schematics by gnetlist.
>
> ---<)kaimartin(>---
> --
> Kai-Martin Knaak
>

Agreed - something else that objects of objects would get us is 'slotting'
of subcircuits. At the moment the example I was thinking of escapes me, but
I think it was related to the question I asked a while back about doing
alternate PCB layouts. Actually now that I mention that, one such use of
parameters might be to associate a circuit with a PCB layout. So if I've
already done the layout for my super duper high side current monitor, or
4th order Bessel HPF, and some reference to the layout can be put in an
attribute, when I import into PCB, it can just suck those sections of
layout in already done.

Another feature that I think would be really useful  is some kind of
concept of a reference or symbolic link to other components. So if I decide
to change my vendor_partnumber or even value, all 743 instances of that
component would change. You'd also want a way to make and break links if
you so chose.

Nathan

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<br><br><div class=3D"gmail_quote">On Mon, Nov 19, 2012 at 7:46 PM, Kai-Mar=
tin Knaak <span dir=3D"ltr">&lt;<a href=3D"mailto:kmk AT familieknaak DOT de" targ=
et=3D"_blank">kmk AT familieknaak DOT de</a>&gt;</span> wrote:<br><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pad=
ding-left:1ex">
<a href=3D"mailto:karl AT aspodata DOT se">karl AT aspodata DOT se</a> (Karl Hammar) schr=
ieb am =A02. November 2012:<br>
there are two more general concepts that are missing in gschem format:<br>
<br>
1) parameters that can be passed to sub sheets<br>
<br>
2) a way to manipulate the parameters during interpretation of the<br>
schematics by gnetlist.<br>
<br>
---&lt;)kaimartin(&gt;---<br>
<span class=3D"HOEnZb"><font color=3D"#888888">--<br>
Kai-Martin Knaak<br></font></span></blockquote><div><br>Agreed - something =
else that objects of objects would get us is &#39;slotting&#39; of subcircu=
its. At the moment the example I was thinking of escapes me, but I think it=
 was related to the question I asked a while back about doing alternate PCB=
 layouts. Actually now that I mention that, one such use of parameters migh=
t be to associate a circuit with a PCB layout. So if I&#39;ve already done =
the layout for my super duper high side current monitor, or 4th order Besse=
l HPF, and some reference to the layout can be put in an attribute, when I =
import into PCB, it can just suck those sections of layout in already done.=
<br>
<br>Another feature that I think would be really useful=A0 is some kind of =
concept of a reference or symbolic link to other components. So if I decide=
 to change my vendor_partnumber or even value, all 743 instances of that co=
mponent would change. You&#39;d also want a way to make and break links if =
you so chose. <br>
</div></div><br>Nathan<br>

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