X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Kw/xUwUqog9DADr0msb1tVcZnsTAQ0+dYSHmWwGHeR4=; b=bi4WwGCvmpifiKzslj+0ib08bkLVO1OxUwqFBg0scvHTMZ8yC5MFuzAUrbqiIQLWs7 6VsZBSwdWYjps7NYvjQq/d+aitnw3q5ufJcBjsidibwOciJWqDTsVQVVxOV/2A3zdPDg VIAH7b8+MC+jd+cRDBvVsBLNhZx69+64UoIcv4ilV7BjM/HIMa4SDWYjazdpEtI3NhT8 LmxxXNhOhUBzxpP+7aJpDDkSLTiOkKo2Wzu/3HLN/HzVpVomKCT5+/zZtJDX8cLUczyx N9hqSXprnxH1B6J05pie/u6K2RQ2OAlJeOqtwUocBmF74PfQ9hLaq6oTYQyw+nlLzHnd MhpA== MIME-Version: 1.0 X-Received: by 10.194.157.165 with SMTP id wn5mr21743569wjb.15.1370314593724; Mon, 03 Jun 2013 19:56:33 -0700 (PDT) In-Reply-To: <201306040227.r542RbbJ009174@envy.delorie.com> References: <201306040227 DOT r542RbbJ009174 AT envy DOT delorie DOT com> Date: Mon, 3 Jun 2013 22:56:33 -0400 Message-ID: Subject: Re: [geda-user] move elements to other side From: Nathan Stewart To: "geda-user AT delorie DOT com" Content-Type: multipart/alternative; boundary=089e013c656a97e18c04de4b3a8d 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 --089e013c656a97e18c04de4b3a8d Content-Type: text/plain; charset=ISO-8859-1 For multilayer boards, only the outer layers really have a flip side. All the inner layers are laid down looking through one side or the other, but there is no obverse. So, I think we can actually restrict it to traces on the outer layers. The question then becomes "outer layers" vs "outer layer". Just as the inner layers have no obverse, the bottom of the board is really conceptually a backside only, as it has no substrate "under" it.However... I think it still needs to handle inner layer, because... the point of this is actually to make the traces line up. So the inner layers need to be at least mirrored. I think they really should also be mirrored in order. Ie, on a 4 layer board, layer 2 becomes layer 3 and layer 3 becomes 2. But reordering the layers is simple, and can be done currently. --089e013c656a97e18c04de4b3a8d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

For multilayer boards, only the outer layers really hav= e a flip side. All the inner layers are laid down looking through one side = or the other, but there is no obverse.=A0 So, I think we can actually restr= ict it to traces on the outer layers. The question then becomes "outer= layers" vs "outer layer".=A0 Just as the inner layers have = no obverse, the bottom of the board is really conceptually a backside only,= as it has no substrate "under" it.However... I think it still ne= eds to handle inner layer, because... the point of this is actually to make= the traces line up.=A0 So the inner layers need to be at least mirrored. I= think they really should also be mirrored in order. Ie, on a 4 layer board= , layer 2 becomes layer 3 and layer 3 becomes 2. But reordering the layers = is simple, and can be done currently.

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