"Usb Hub" <nomail@nomail> wrote:
> Now it works! The solution is, that the direction of the tangents at the start
> and end control point of joining curves must be identical.
> (http://wiki.povray.org/content/HowTo:Use_Splines_and_Bezier_Curves)

Yes, if you're piecing together splines, then you need to do that to make them
smoothly continuous.

> But now is the question, how can I make edges in the spline?

What do you mean "make edges"?

Do you want just a "linear" spline that doesn't "enclose a shape"?

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