X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Message-ID: <20181214055055.12384.qmail@rahul.net> Date: Thu, 13 Dec 2018 21:50:55 -0800 To: geda-user AT delorie DOT com Subject: Re: [geda-user] pcb: save connection data of - anyone ever used this? In-Reply-To: References: X-Mailer: VM 7.19 under Emacs 24.4.1 From: conover AT rahul DOT net (John Conover) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Precedence: bulk Yes, I have in the past, but not recently. It was done for comparing the connectivity data from one of the gschem(1) derived file formats, and, the connectivity data from pcb(1) after manual massaging of the layout. Text program scripts were used for layout vs. schematic ERC. I was concerned with inadvertent shorting/bridging of nets, and the design was large enough that I was concerned about missing something during manual highlight circuit tracing. It was for low noise, wide bandwidth, linear/analog designs where the ground system required a lot of manual intervention. More recently, on smaller designs, I just manually place components connected to the '-' input of opamps in close proximity, and autoroute, depending on the pcb(1) program for correctness. A layout vs. schematic net checking tool is a nicety, but maybe not a necessity, IMHO. John gedau AT igor2 DOT repo DOT hu writes: > > I'm doing a full rewrite on find.c in pcb-rnd. In fact the most important > parts are already done, and I am mostly moving around or removing old > code. > > There's a part that I always wondered if anyone ever use: in pcb, file > menu, save connection data of submenu. It does some connection lookups and > saves in a strange format. > > My questions are: > > 1. Does anybody here use this feature in practice? > -- John Conover, conover AT rahul DOT net, http://www.johncon.com/