public static CGPoint?Intersection(CGPoint from, CGPoint to, CGPoint from2, CGPoint to2)
{
var cgPoint = new CGPoint(to.X - from.X, to.Y - from.Y);
var self = new CGPoint(to2.X - from2.X, to2.Y - from2.Y);
var point1 = new CGPoint(from2.X - from.X, from2.Y - from.Y);
var point2 = new CGPoint(to.X - from2.X, to.Y - from2.Y);
var nfloat1 = self.Cross(point1);
var nfloat2 = self.Cross(point2);
if (Math.Abs(nfloat1 + nfloat2) < 0.1)
{
return(new CGPoint?());
}
var nfloat3 = nfloat1 / (nfloat1 + nfloat2);
return(new CGPoint(from.X + nfloat3 * cgPoint.X, from.Y + nfloat3 * cgPoint.Y));
}