"Thorsten Froehlich" <tho### [at] trf de> wrote in message
news:3cda47d8@news.povray.org...
> Yes, and this will remain the way it is unless someone comes up with code
to
> determine the bounding box of a Catmull-Rom spline segment. It turns out
the
> original sphere_sweep code simply adds a bit to the control point bounding
> box. The problem appears only for Catmull-Rom splines because they may
exceed
> their control points which the code uses to find the bounding...
If there is already code for the bounding box of a Bezier spline segment,
is it difficult to internally convert Catmull-Rom spline segment into Bezier
one
(to find the two additional control points) and to use it?
Gleb
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