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Re: gEDA-user: pcb GL can't render stretched arcs

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Subject: Re: gEDA-user: pcb GL can't render stretched arcs
From: John Doty <jpd@xxxxxxxxx>
Date: Thu, 14 Jul 2011 12:53:08 -0700
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On Jul 14, 2011, at 12:00 PM, DJ Delorie wrote:

> Technically, what we have is *not* an ellipse - it's a stretched arc.

?

The linear "stretching" transformation (x', y') = (a*x, b*y) applied to a circle yields an ellipse whose axes are parallel to the coordinate axes.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd@xxxxxxxxx




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