Warp <war### [at] tagpovrayorg> wrote:
>   A straight edge can be rounded by using two boxes and a cylinder.
> Likewise a curved edge can be rounded by using two cylinders and a
> torus, using the same principle.
>
>   (Of course if the curve is not close to circular, then it becomes
> slightly more difficult. You would need an elliptical torus which is not
> impossible, but laborious. Note that an unevenly scaled torus is not a
> real elliptical torus, as the minor radius does not remain constant.)

That's very helpful. The "k" and the "n" both use circular curves. The curve of
the "D" is not circular so I'll have to experiment with that one. Thanks!

Regards,
Dave Blandston

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