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Date: Sun, 13 Sep 2015 11:29:30 -0400
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From: DJ Delorie <dj AT delorie DOT com>
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	(geda-user AT delorie DOT com)
Subject: Re: [geda-user] Apollon
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"Angular data is stored in signed integer,"

Not floating point?  What about 7 evenly rotated LEDs, or 22.5 degree
rotations?  Given location is nanometers, you should have an equally
precise unit for other measurements.

Also, specify where 0 degrees points.

Why limit yourself to 32 layers?  PCB has no such limitation.

You don't have a paste layer group.

You don't support multiple silk layers on top/bottom (different colors?)

PCB doesn't support rotated ovals (i.e. general ellipses).  Do you want to?

Arc is missing radius.  Do you want to support arcs with different
width/height? What about segments of rotated ellipses?  Arbitrary
splines?

Do you want to support flex cables, where the "top" layer changes
depending on where you are on the pcb?