X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com Content-type: text/plain; charset=utf-8 MIME-version: 1.0 (Mac OS X Mail 8.2 \(2098\)) Subject: Re: [geda-user] PCB interface (ECAD vs. MCAD) From: "Chris Smith (space DOT dandy AT icloud DOT com) [via geda-user AT delorie DOT com]" In-reply-to: Date: Mon, 13 Jul 2015 16:49:29 +0100 Message-id: <411F7DFC-171A-424B-8030-C39124C2E6BD@icloud.com> References: <76520AC3-3E8D-4F80-A912-AB076DD8D0C6 AT icloud DOT com> <1670171546 DOT 913210 DOT 1436776811789 DOT JavaMail DOT yahoo AT mail DOT yahoo DOT com> <79456AAA-24A9-4300-900D-005ABBCFCBDA AT icloud DOT com> To: geda-user AT delorie DOT com X-Mailer: Apple Mail (2.2098) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.14.151,1.0.33,0.0.0000 definitions=2015-07-13_10:2015-07-13,2015-07-13,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=5 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1412110000 definitions=main-1507130223 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id t6DFnovD031770 Reply-To: geda-user AT delorie DOT com On 13 Jul 2015, at 15:49, Ouabache Designworks (z3qmtr45 AT gmail DOT com) [via geda-user AT delorie DOT com] wrote: > > On Mon, Jul 13, 2015 at 2:01 AM, Chris Smith (space DOT dandy AT icloud DOT com) [via geda-user AT delorie DOT com] wrote: > >> That’s my point. If you ignore the modern 3D MCAD stuff and look at a simple 2D draughting package, like QCad, then PCB layout is just that plus electrical semantics — relationships between objects and layers. > > And schematic capture is a single layer PCB with minimal widths and thickness where lines crossing at right angles do not connect. So we start with a common graphics drawing program and add a schematic module or a PCB module or a autoroute module or a 3-D module all on a common base. I'm surprised that no one has applied autorouting to schematic capture, That would really be usefull. I see where you’re coming from, but I’m not sure I’m ready to agree yet. In technical, code terms, yes, but conceptually a schematic is a lot more abstract. > draughting?? Is that British for drafting? Sorry, yes. Probably a bit outmoded now though… :) Regards, Chris — Chris Smith