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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
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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 Note that UCAMCO says "standard gerber is obsolete" so we're going to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