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Date: Sun, 13 Sep 2015 21:38:52 -0400
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From: DJ Delorie <dj AT delorie DOT com>
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	John Doty on Sun, 13 Sep 2015 19:29:03 -0600)
Subject: Re: [geda-user] Apollon
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So... internally *every* value is a fraction?  I imagine integer
overflow might be a non-trivial problem to solve.

But if the whole point is to defer imprecise operations, what is the
advantage of this over just storing the angles as degrees and doing
the math on the fly?  Just speed?  /me wonders what the speed
difference would be, if you include all the division ops you've
created a need for, plus algorithms to find pythagorean triples as
needed, plus overflow protection of a sort, etc.

I'm not even sure we've covered all the advantages of storing
rotations as a relationship rather than a transformation... like, if
we "down symbol" we'd want to edit the unrotated symbol.