How to control points on a curve by Point.AtParameter button?

Initial


Expected results

This is a relevant issue.

I have a plane B is a plane containing the straight line d1, d2, d3, …, D10, and A is the plane Oxy (working plane).
When the plane B which investigated an angle relative to the plane Oxy.
How do we get the plane B parallel to the plane Oxy which building components previously not change?.
-I’m trying to understand it better. I am very grateful to receive help from your words. :cười toe toét:
link: Ex01.dyn (29.2 KB)