Re: gEDA-user: footprint measurement units naming

[DJ Delorie <dj@xxxxxxxxxxx>]

> Is there a name for the 100th of a mil (or thou) that PCB uses as its base
> unit?  

I still call them mils (and keep track of the scaling separately), but
there's nothing wrong with calling them "units".  The only time we
care how big a unit really is is when we import or export it, and then
we need to know inches or mm, not some made-up prescaled unit.

Maybe we should have just switched to floating point and avoided the
whole problem?  Double precision is plenty accurate enough.

> "centimil" and "centithou" both mix imperial and metric units and
> are thus quite illogical.

No, an inchimeter would mix units.  1/100000 of an inch is ten
microinches, no problem there.