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From: geda AT psjt DOT org (Stephan =?utf-8?Q?B=C3=B6ttcher?=)
To: Kai-Martin Knaak <knaak AT iqo DOT uni-hannover DOT de>
Cc: geda-user AT delorie DOT com
Subject: Re: [geda-user] pcb_fprintf mixes mm and mils for same output object
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	<s6nio2hpiby DOT fsf AT blaulicht DOT dmz DOT brux> <n8b8v6$3t9$1 AT ger DOT gmane DOT org>
Date: Wed, 27 Jan 2016 21:46:39 +0100
In-Reply-To: <n8b8v6$3t9$1@ger.gmane.org> (Kai-Martin Knaak's message of "Wed,
	27 Jan 2016 21:23:01 +0100")
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Kai-Martin Knaak <knaak AT iqo DOT uni-hannover DOT de> writes:

> Stephan Böttcher wrote:
>
>> Maybe, at some point the default unit can be changed from cmil to nm for
>> unit-less numbers, 
>
> There is a small but sometimes significant benefit to nm: Unlike centimil 
> the nanometer is a unit sanctioned by the SI. If a project requires 
> certification of some sort, non-standard units tend to raise an eye-brow 
> or two during the audit. Think ISO-9001, ESA, health related products... 

I am a physicist.  There is no physics in units.

That comment above was meant to be about how the File reader shall treat
numbers without a unit for the next version of the file format.

 1. cmil, as before
 2. Syntax Error
 3. nm, the current internal unit.
 ?. ???

-- 
Stephan