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| From: | "Vaclav Peroutka (vaclavpe AT seznam DOT cz) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> |
| To: | <geda-user AT delorie DOT com> |
| Subject: | Re: [geda-user] PCB interface (ECAD vs. MCAD) |
| Date: | Tue, 14 Jul 2015 14:39:09 +0200 (CEST) |
| Message-Id: | <F7r.JTnW.5MdykOLaYbH.1LfGBj@seznam.cz> |
| References: | <79456AAA-24A9-4300-900D-005ABBCFCBDA AT icloud DOT com> |
| <76520AC3-3E8D-4F80-A912-AB076DD8D0C6 AT icloud DOT com> | |
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--=_6b748dc6516d71910d7cf15d=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable =0A= "=0A= =0A= =0A= =0A= On Mon, Jul 13, 2015 at 2:01 AM, Chris Smith (space DOT dandy AT icloud DOT com=0A= (mailto:space DOT dandy AT icloud DOT com)) [via geda-user AT delorie DOT com=0A= (mailto:geda-user AT delorie DOT com)] <geda-user AT delorie DOT com=0A= (mailto:geda-user AT delorie DOT com)> wrote:=0A= "=0A= =0A= =0A= That=E2=80=99s my point.=C2=A0 If you ignore the modern 3D MCAD stuff and = look at a =0A= simple 2D draughting package, like QCad, then PCB layout is just that plus= =0A= electrical semantics =E2=80=94 relationships between objects and layers.= =0A= =0A= =0A= =0A= =0A= =0A= "=0A= =0A= =0A= =0A= And schematic capture is a single layer PCB with minimal widths and =0A= thickness where=C2=A0 lines crossing at right angles do not connect.=0A= =0A= =0A= =0A= =0A= "=0A= =0A= =0A= =0A= =C2=A0IMO the main difference is (and what is currently missing in geda) w= hen =0A= moving a footprint the right angles will stay on places where they are. An= d =0A= new position of the footprint will be restricted by those right (or 45= =0A= degrees) angles.=0A= =0A= --=_6b748dc6516d71910d7cf15d=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_= Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><body><br><blockquote><div><div><div><div>On Mon, Jul 13, 2015 at 2:= 01 AM, Chris Smith (<a href=3D"mailto:space DOT dandy AT icloud DOT com">space.dandy@= icloud.com</a>) [via <a href=3D"mailto:geda-user AT delorie DOT com">geda-user AT de= lorie.com</a>] <span><<a href=3D"mailto:geda-user AT delorie DOT com">geda-use= r AT delorie DOT com</a>></span> wrote:<br><blockquote style=3D"margin:0px 0px= 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span>= <br>=0A= </span><span><br>=0A= <br>=0A= </span>That=E2=80=99s my point. If you ignore the modern 3D MCAD stu= ff and look at a simple 2D draughting package, like QCad, then PCB layout = is just that plus electrical semantics =E2=80=94 relationships between obj= ects and layers.<br>=0A= <div><div><br></div></div></blockquote><div><br></div><div>And schematic c= apture is a single layer PCB with minimal widths and thickness where = lines crossing at right angles do not connect.</div></div></div></div></d= iv></blockquote><p><br></p><p> IMO the main difference is (and what i= s currently missing in geda) when moving a footprint the right angles will= stay on places where they are. And new position of the footprint will be = restricted by those right (or 45degrees) angles.<br></p></body></html>= --=_6b748dc6516d71910d7cf15d=6aa5b07b-cb9c-51fa-b61b-ca52bdce6166_=--
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