I have some points in 3D which are in a single plane. I want to arrange them in clock wise or counter clockwise order.
The points can create a concave or convex polygon in a single plane.
Can any body give any suggestions?
Find the center of all the points, then calculate all the angles from the center to each point. Then sort by angle.
Ok, I nearly solve the problem. I got line segment instead of having points in 3d. So, Now I have to arrange line segment in sequence. Which becomes somehow easier for me. I am now able to arrange them in sequence.
来源：https://stackoverflow.com/questions/2778805/arrange-points-in-sequence