Given a vector of points (possibly out of order), find polygon (not convex hull)

Question

I currently have a vector of points

vector corners;

where I have previously stored the corner points of a given polygon. Given tha

Answer 1

A given set of points can generally be joined up many ways to form a non-self-intersecting polygon. You may be out of luck unless you have more information about the kinds of polygons the points could represent.