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Date:	Sun, 4 Oct 2015 22:43:59 +0200
From:	Kai-Martin Knaak <kmk AT familieknaak DOT de>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] what does gEDA need to achieve easy sharing of
	designs?
Message-ID:	<20151004224359.21d54065@akka>
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"Britton Kerin schrieb am  3. October 2015:

> A public forum for sharing of schematics/layout doesn't exist so far
> as I know.

Technically, gedasymbols.org can already serve circuits if they are
packaged as a symbol. Example:
http://www.gedasymbols.org/user/kaimartin_knaak/symbols/blocks/opamp_adder.=
sym

All symbols within this symbol should be "embedded". Else, the renderer
of the website won't be able to render a preview. The block =20

To use this schematic-symbol as intended you would choose a special mode
on insert into a schematic. Make sure to choose "Include_component_as
individual_objects" on the bottom of the select_components dialogue.

BTW, why does the GUI talk about "components" here? I'd prefer
"symbols". To me a component is something physical, something I buy at a
distributor and solder on a PCB.


> So what would need to happen for this to become possible?

gedasymbols.org:=20
1) Explicitly encourage people to upload schematics.
2) Pull the value of the description attribute and add it to the data
base of the search algorithm. This would be handy for ordinary symbols,
too.
3) Recognize *.sch in addition to *.sym

gschem:
Schematic sharing via complex symbols would benefit from an improvement
of the way embedded symbols are handled. Currently "unembed" fails if
there is no matching symbol already in the library. It would be rather
useful to have the symbol be exported into files instead.

PCB:
1) get layer handling on import right. So layouts done with layer stacks
other people prefer can be imported in a painless way.


> * One major barrier to sharing is that everyone has a different
> strategy for creating parts.  Might it be possible to fit these
> different approaches behind a common interface, thereby rendering them
> more accessible and comprehensible?

I still think, geda is missing the notion of a "package". This would be a
container format for all information related to a physical component.
Like symbol(s), footprint(s), links to data sheets, notes, ...


> * Is there a way of doing subcircuit layout that would work widely
> enough to be promoted as a semi-standard?  This is a big can of worms
> of course especially if one considers parametric designs

Since parameters for sub sheets have only recently seen the light of
geda in the form of Roland's xorn, this is certainly not a key feature.

---<)kaimartin(>---
--=20
Kai-Martin Knaak

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