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Date:	Thu, 29 Jun 2017 21:17:23 +0200 (CEST)
X-X-Sender:	igor2 AT igor2priv
To:	geda-user AT delorie DOT com
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From:	gedau AT igor2 DOT repo DOT hu
Subject:	[geda-user] [pcb-rnd] Subcircuit example: reusable board outline + mounting
	holes + details on the code cleanup
Message-ID:	<alpine.DEB.2.00.1706292048430.27212@igor2priv>
User-Agent:	Alpine 2.00 (DEB 1167 2008-08-23)
MIME-Version:	1.0
Reply-To:	geda-user AT delorie DOT com

Hi all,

the following video demonstrates how to use subcircuits to specify the 
outline and mounting holes of a board:

https://archive.org/details/subc-box2

The subcircuit can be then reused easily for fitting other boards in the 
same box.

Testing is welcome!

A summary about the technical details at the current standing after 4
weeks of development:

http://repo.hu/projects/pcb-rnd/devlog/20170629_subc.html

Other than such practical uses, implementing subcircuit is also a major 
cleanup in the code base. After the layer concept/code cleanup, this is 
the second part of the long awaited "clean up the internal data 
structures" effort, turning our flat-data-with-special-cases into a 
generic tree. (Later on this will include removing special cases, when 
elements will be removed in favor of subcircuits, which is just a generic 
way of grouping arbitrary objects.)

Roadmap: the remaining time in this development cycle will be used for IO 
plugin coding and generic bug fixes. My current plan is that subcircuits 
will get pin/pad capabilities in the next cycle, which will make them a 
capable replacement for elements/footprints, but elements co-existing; 
then in a 3rd cycle I would remove elements, element-lines, 
element-arcs, pins and pads (with all the special-case code). This should 
e all be finished this year.

Regards,

Igor2

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