Compare btw two paths UIBezierPath Swift

I have drawn a circle using UIBezierPath and the user draw on the top of that circle. I need to get the points from the two paths to calculate the difference between the two paths? Plz let me know, I'm kind a new to swift
Code:

var shapeLayer = CAShapeLayer()
let bezierPath = UIBezierPath()
((circle drawn ))
hapeLayer.path = bezierPath.cgPath
view.layer.addSublayer(shapeLayer)

Hi @Aya3477! Since this is a question about an Apple framework (UIKit) and not the Swift language itself, it would be more appropriate (and probably more helpful for you!) to ask over on the Apple Developer Forums.

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