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Subject: Re: [geda-user] Primitive electrical types [WAS: Re: first attempt at bus support in gnetlist for pcb]
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From: John Doty <jpd AT noqsi DOT com>
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Date: Sat, 9 Jan 2016 12:14:14 -0500
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On Jan 9, 2016, at 11:48 AM, Nicklas Karlsson =
(nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] =
<geda-user AT delorie DOT com> wrote:

>>> Whether or not this is fully factored in the code or not, from the =
graphical entity point of view these are effectively sub-type =
specialisations of the line primitive, as John has suggested. Whilst it =
would be technically possible to take this as a more "duck typed" =
approach, I'd probably not suggest it.
>>=20
>> What I was trying to get at is that I see line drawing style as a =
fundamentally orthogonal issue to line =93type". What we have now is =
hard-wired, except for purely graphical lines. That doesn=92t fit all =
uses. It gets us into unresolvable arguments over thick net segments for =
power versus thin segments for signals. Conventions are good. Defaults =
implementing conventions are good. Hard wiring them is bad.
>>=20
>> John Doty              Noqsi Aerospace, Ltd.
>> http://www.noqsi.com/
>> jpd AT noqsi DOT com
>=20
> You mean if a line should be considered: net, bus, pin, ... should =
depend on an assigned attribute?
>=20

That=92s the obvious way to make line style orthogonal to line type =
without changing the file format. It=92s also extensible to new types.

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



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