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:sender:in-reply-to:references:date
         :x-google-sender-auth:message-id:subject:from:to:content-type
         :content-transfer-encoding;
        bh=B1KHpSHDm2sv001OWY44b2iuVhoj6y2Q3bXtukq5r0o=;
        b=P8AFW8W4DvY7MyKBubAy7XCUVDN2fSjz5b8unqDi5aX+sbCWbdf2NhHtbxSn+tYoay
         f7lVagWHvxUsd+K1t8ilq/21424zjTHZJ/JmwbJ3M+pVHfDnx7cg+nFasYbC6EuMDOHx
         NwAbW7I4NMsHmddcpFfPcUbsfgMMTlam4XntPoGvGqVaNxiqcdBLLk3OFuFcZG83fjXs
         s6KiJi1iknX9cbcJb/5fSy6b7WWu5uAWs/v8k5Ih7t+5Vmz2xgpkZnq5tKfFKRkMb7wb
         enq3FPt8ykudJw5pHAq0wpjNE2vO8KHiMEilwFPWQamKBjDNyAv469ZtbHUghKYHD0Jm
         O+qA==
MIME-Version: 1.0
Sender: silicon DOT on DOT inspiration AT gmail DOT com
In-Reply-To: <4FCEC8F9.60509@studiofeed.com>
References: <4FCE7A57 DOT 1010107 AT studiofeed DOT com>
	<jqme72$dpg$1 AT dough DOT gmane DOT org>
	<4FCEC8F9 DOT 60509 AT studiofeed DOT com>
Date: Wed, 6 Jun 2012 14:38:52 +1000
X-Google-Sender-Auth: d-Uk3TDr0sAm6zhWekStDiH_BxA
Message-ID: <CAKakQcfRbQ4S914dfPia4qX6cEoSyoR1iipH17DsPHMMjevFTw@mail.gmail.com>
Subject: Re: [geda-user] Clearance between polygons on same layer group
From: Stephen Ecob <stephen DOT ecob AT sioi DOT com DOT au>
To: geda-user AT delorie DOT com
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id q5654Dfi012049
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

On Wed, Jun 6, 2012 at 1:05 PM, Tim van Boxtel <tim AT studiofeed DOT com> wrote:
> Great reply!
>
> The information about the join flag was helpful and it works if there is
> only one polygon on a physical layer.  Is there a way to force a clearance
> between 2 polygons on different layers, yet the same layer group (i.e.
> physical layer)?

No, there is no way (currently) to force a clearance between 2
polygons in the same layer group.

> I have found drawing the polygon with thick traces works as expected, though
> it can be a touch cumbersome :)

Yes, that's a commonly used workaround.
Another workaround is to manually place your polygons, vertex by
vertex, so that they have the desired clearance at each point.
Tedious but do-able.

Peter Clifton has a number of experimental branches of PCB that
include cool features like anti-polygons and copper pours.
Hopefully he'll find the time to merge these cool features into the
PCB mainline at some stage, but even now they are available to
experiment with:

http://pcjc2.blogspot.com.au/2011/02/pcbgl-repository-instructions.html

Of course these branches are not production code, so pay attention to
Peter's caveats regarding their use.