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	Tue, 22 Mar 2016 01:46:13 -0700 (PDT)
Date:	Tue, 22 Mar 2016 09:46:07 +0100
From:	"Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] mucs autorouter
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	<ncqvdk$9u$1 AT ger DOT gmane DOT org>
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> gedau AT igor2 DOT repo DOT hu wrote:
> 
> > Input: http://igor2.repo.hu/tmp/tut.pcb (+ a netlist)
> > Output: http://igor2.repo.hu/tmp/tut_routed.pcb
> > 
> > I could invest some more hours and rewrite the util to be a plugin.
> 
> IMHO, plugins are a less than optimal concept in the case of low volume 
> low traffic projects like pcb and EDA in general. In particular, the way 
> plugins are done in pcb presents enough additional obstacles that I tend 
> to not use them at all. Plugins need to be compiled separately for each 
> version of pcb. There is no mechanism to pick automatically the "right" 
> binary. Since I like to use both, the stable version from stock Debian and 
> bleeding edge from git head I end up with plgins not working half the 
> time. In addition, plugins do not track advances of the main source. So 
> they bit-rot and tend to "go away".

Would it be possible to keep them in a separate plugin directory in ordinary source? Or is this already done?


> > More generally, do anyone like the example output? Or the idea of 
> > the "biased layers" (hirozontal traces on one layer, vertical on
> > another, plus a lot of vias)?
> 
> Biased routing is what I teach students as a default strategy for manual 
> layout. It automatically prevents the most common blunders: Big road 
> blocks due to parallel tracks on both sides of a two-layer layout. The 
> result is reasonably close to optimum most of the time. Our preferred fabs 
> do not charge extra for additional vias (unless they come in ridiculous 
> amounts)

I agree and guess it would be usefule with more than one algorithm available if there are several to chose from.


Nicklas Karlsson

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