X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
X-Cam-AntiVirus:	no malware found
X-Cam-ScannerInfo:	http://www.cam.ac.uk/cs/email/scanner/
Message-ID:	<1403800651.25929.15.camel@pcjc2lap>
Subject:	Re: [geda-user] pcb: Patch for arcs with different radii for x and
	y on screen
From:	Peter Clifton <pcjc2 AT cam DOT ac DOT uk>
To:	geda-user AT delorie DOT com
Date:	Thu, 26 Jun 2014 17:37:31 +0100
In-Reply-To:	<201406261625.s5QGPPEA007064@envy.delorie.com>
References:	<ojbt218fi23of8gryausfclb DOT 1403353431756 AT email DOT android DOT com>
	<201406211627 DOT s5LGR0aR004148 AT envy DOT delorie DOT com>
	<1403799508 DOT 25929 DOT 8 DOT camel AT pcjc2lap>
	<201406261625 DOT s5QGPPEA007064 AT envy DOT delorie DOT com>
X-Mailer:	Evolution 3.10.4-0ubuntu1
Mime-Version:	1.0
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

On Thu, 2014-06-26 at 12:25 -0400, DJ Delorie wrote:
> > Speaking of Gerber - at some point, we should re-validate our output
> > choices against current UCAMCO recommended practice.
> 
> Note that UCAMCO says "standard gerber is obsolete" so we're going to
> have a hard time following them...

They differentiate:

"standard gerber" RS274. IE.. no aperture definitions.
"extended gerber" RS274X (not obsolete).

> > I would suggest that we re-enable arc features in gerbers at some
> > point,
> 
> We only interpolate non-circular arcs, which gerber simply doesn't
> support.

Ah - that makes more sense.

-- 
Peter Clifton <peter DOT clifton AT clifton-electronics DOT co DOT uk>

Clifton Electronics

- Raw text -