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Subject: Re: [geda-user] gsch2pcb after refdes-renum? (If implemented syncronization detail)
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From: John Doty <jpd AT noqsi DOT com>
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Date: Wed, 9 Dec 2015 16:03:59 -1000
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On Dec 9, 2015, at 2:41 PM, Edward Hennessy (ehennes AT sbcglobal DOT net) [via =
geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

>=20
>> On Dec 8, 2015, at 11:01 PM, John Doty <jpd AT noqsi DOT com> wrote:
>>=20
>>> Perhaps gschem could assign an artificial or surrogate key to the =
symbol and store it in an attribute.
>>=20
>> And then what happens when you make a copy?
>=20
> For an artificial or surrogate key that identifies an instance of a =
symbol, something like:
>=20
> COPY
> ~~~~
> 1. Copy objects to buffer
> 2. Assign a new identifier to symbols in the buffer
>=20
> CUT
> ~~~
> 1. Copy objects to buffer
> 2. Remove objects from schematic
>=20
> PASTE
> ~~~~~
> 1. Copy objects to schematic
> 2. Assign a new identifier to symbols in the buffer
>=20
> It would also be nice to have some surrogate key, that could be either =
artificial or natural to identify a part. For example, if there is more =
than one symbol to represent a 74HCT00, a refdes renumbering program =
could identify that all the instances belong to the same part, and =
assign slots properly. A natural key could be a company part number, but =
many don=92t create company part numbers, so an artificial key may be =
better in this case.

You=92re imagining copying in gschem. But a common, useful pattern is, =
in a shell:

cp page1.sch page2.sch
gschem page2.sch

Do this when page2 is similar, but not identical to, page1.

gschem isn=92t the only tool that manipulates schematics.

>=20
> Ed
>=20
>=20
>=20

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



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