X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
Date:	Sun, 30 Apr 2017 23:53:33 -0400
From:	al davis <ad252 AT freeelectron DOT net>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] [dev] Gnucap and Google summer of code.
Message-ID:	<20170430235333.2ce8e5e8@floyd.freeelectron.net>
In-Reply-To:	<alpine.DEB.2.00.1704290953590.27212@igor2priv>
References:	<20170330125608 DOT 7d04622a AT floyd DOT freeelectron DOT net>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1703301916570 DOT 27212 AT igor2priv>
	<20170402235928 DOT 7143c5f4 AT floyd DOT freeelectron DOT net>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1704030619050 DOT 27212 AT igor2priv>
	<20170403015521 DOT 7f0c4509 AT floyd DOT freeelectron DOT net>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1704030844310 DOT 27212 AT igor2priv>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1704290953590 DOT 27212 AT igor2priv>
X-Mailer:	Claws Mail 3.11.1 (GTK+ 2.24.25; x86_64-pc-linux-gnu)
MIME-Version:	1.0
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

On Sat, 29 Apr 2017 09:59:40 +0200 (CEST)
gedau AT igor2 DOT repo DOT hu wrote:
> Any news on this? I'm finishing the current portion of the layer rewrite 
> this weekend. I could find some time on a gnucap exporter before the 
> release, but I need to know the answers (especially the parameter 
> extraction part) before I start.

In circuit simulation, it's all transmission lines.  All that you list
is just different shapes.  What gnucap does with the data, I don't know
until I see it.

For arbitrary shapes, think SVG, but it isn't quite SVG.  Use SVG
parameters in a Verilog syntax, except that where SVG uses absolute
coordinates, Gnucap/Verilog wants relative coordinates such that when a
shape is moved it stays the same.  The absolute position is specified
through the $xposition and $yposition parameters.

Ideally, you would be able to both export and import this format.  For
now, export only will enable some simulation.  If you can import too,
you have a way to test it by doing a round trip.

- Raw text -