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Date: Thu, 11 Feb 2016 16:05:22 -0900
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Subject: Re: [geda-user] pcb_fprintf mixes mm and mils for same output object
From: "Britton Kerin (britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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On Wed, Feb 10, 2016 at 6:47 PM, P. Taylor <phil AT plastitar DOT com> wrote:
> On 2/10/2016 9:56 PM, Kai-Martin Knaak wrote:
>>
>> In my humble opinion mixing metric with imperial is not a a compromise but
>> worse than strictly sticking to imperial.
>>
>> ---<)kaimartin(>---
>
> Nonsense.

Not at all, he's absolutely right.

> Imperial / metric.  They are both arbitrary and as far as EDA goes there is
> no fundamental reason for either being better.

Metric is better for all the usual widely recognized reasons, besides
the fact that as Kai points out all the new parts use it.
Mixing the two is super weird and likely to cause confusion.

> What they did with PCB using thou/mm's is brilliant.  Why shouldn't the
> computer be used to solve for these little problems that nobody wants to
> face?

Because "the computer" (i.e. pcb software) does not and cannot solve
the problem the way it's trying to do it, it can only take a guess at
what the user might have meant.  Did you read my first post where I
reported the issue?  The approach has been carried over from
footprints, where it makes a small amount of sense, to other objects,
where it makes no sense at all.

> AND you get to interface to your imperial chassis hole pattern with ease, or
> your metric chassis hole pattern with ease.

Converting your chasis dimensions is trivial and its not worth having
pcb do something weird and torturous to save that operation.

Britton