How to make sure that a curve always pertains to a specific plane?

Grasshopper
1

Hi everyone,
I am looking for an algorithm in Grasshopper similar to “draw polygon/circle around curve” but applicable to any desired closed curve.
here are the steps taken:

  1. Define a vector with two points,
  2. create a plane perpendicular to the vector,
  3. Draw a curve in the plane,
  4. shift one of the points creating the vector, The curve doesn’t get updated.
    Any Solution?
    Thanks
2

But you don’t mean this, do you?? PFrames.gh (3.2 KB)

pframes.png692×508 49.6 KB

3

Thanks but I don’t mean this.
Check this out:
01.gh (6.6 KB)
01.3dm (25.0 KB)

The circle always faces the camera, pertaining to the plane it was created.
I want to do the same for any other curves,