

"Kima" <nomail@nomail> wrote:
> I know how Spline works for two points, but how can we create a smooth line of
> spheres passing through n points? I am looking for something like line smoothing
> in graphs/charts.
>
> I assume we have to create n1 Splines, but how do we calculate the control
> points to have a smooth curvature over points?
>
> In the tutorial on Bezier patches, there is an explanation for aligning the
> control points for Bezier surfaces, but I am not sure if we need to apply the
> same approach here.
You need to make sure that the control points 1in from the end of each spline
segment is on the same line, so that the endpoints are tangent. IIRC, that is
covered in the documentation somewhere.
https://www.youtube.com/watch?v=jvPPXbo87ds&pp=ygUNZnJleWEgc3BsaW5lcw%3D%3D
I also have a PDF that covers this specifically for POVRay
 BW
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