How to determine if a list of polygon points are in clockwise order?
Having a list of points, how do I find if they are in clockwise order?
For example:
point[0] = (5,0)
point[1] = (6,4)
point[2] = (4,5)
point[3] = (1,5)
point[4] = (1,0)
would say that it is anti-clockwise (or counter-clockwise, for some people).