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=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=Rf2D57uA18nGcdtQpl1fqx8YbD48lVq8Ti9hj4cWKDQ=; b=UP8VD6tO9UaJVp+P8qsyoSfXj/QgOhqhQP56NAJ9O5LcmlDCxYzq5S5VQyMR7TYLCg 4WH4rjLR3D7K9tqq6tClXHZcKjnFlEyxi00mLXIUszlQYLat2OVQPy25CpyWqCfi97fo Il+w+P3gi2reyEGe+955QXUf/ogMWAdCQGN5k= MIME-Version: 1.0 Sender: silicon DOT on DOT inspiration AT gmail DOT com In-Reply-To: <20111021025514.GF20384@malakian.lan> References: <201110201548 DOT p9KFma9K019672 AT envy DOT delorie DOT com> <20111020172714 DOT GB20384 AT malakian DOT lan> <20111021013756 DOT GE20384 AT malakian DOT lan> <20111021025514 DOT GF20384 AT malakian DOT lan> Date: Fri, 21 Oct 2011 14:21:34 +1100 X-Google-Sender-Auth: L_dTtrUwvXs5yu0enBTgyt4OthM Message-ID: Subject: Re: [geda-user] Working with a 0.1mm grid From: Stephen Ecob To: geda-user AT delorie DOT com Content-Type: text/plain; charset=ISO-8859-1 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 >> I think that reading in using "mil" and "mm" suffixes without loss of >> precision isn't the problem. >> >> I think that the problem is that PCB throws away precision of metric >> values when saving. >> > > Yes. > > The question is, how precisely can we save, without producing files that > old versions of pcb can't read? I can see that having an option to save to a backwards compatible format is good - but can we also have an option to save in a newer format that supports accurate metric measurements (whilst dropping backwards compatibility) ? Stephen Ecob Silicon On Inspiration Sydney Australia www.sioi.com.au