X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Injected-Via-Gmane: http://gmane.org/ To: geda-user AT delorie DOT com From: Kai-Martin Knaak Subject: Re: [geda-user] mucs autorouter Date: Tue, 22 Mar 2016 09:23:15 +0100 Organization: Institut =?ISO-8859-1?Q?f=FCr?= Quantenoptik Lines: 61 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" X-Complaints-To: usenet AT ger DOT gmane DOT org X-Gmane-NNTP-Posting-Host: 130.75.102.197 User-Agent: KNode/4.14.10 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id u2M8NXP5007304 Reply-To: geda-user AT delorie DOT com 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". > The question is whether it is worth the effort. Yes, please! Biased routing would be very welcome by me. I'd even consider to overcome my learned resistance toward plugins. > 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) ---<)kaimartin(>--- -- Kai-Martin Knaak tel: +49-511-762-2895 Universität Hannover, Inst. für Quantenoptik fax: +49-511-762-2211 Welfengarten 1, 30167 Hannover http://www.iqo.uni-hannover.de GPG key: http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get