Arc Orientation, clockwise or counterclockwise

[zmaomao981 (MZ)]

I have meet a similar question like yours,you can check this link:

How to get all the line which connected with a point in ghpython?

Hey , I am a new beginner and have a question. I am trying to reorder all the point clockwise in the layer’'Panel" with GH-python. At first I select the point A as the first ref_p and as the first point 1 ,then find the other two points B and C durch the two blue curve , which connected with point A. And durch Vector cross product I get the second point 2. [1] [2] but I don’t know how to with GH-python to get the point B and C. [3] the original GH-file is here Points.gh (3.5 KB)

the answer maybe can figure your Question