result.swift

import UIKit
import PlaygroundSupport

class CoordinateSystem: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Main view
        view.backgroundColor = .black
        view.frame = CGRect(x: 0, y: 0, width: 500, height: 500)
        
        // Red view
        let redView = UIView(frame: CGRect(x: 20, y: 20, width: 460, height: 460))
        redView.backgroundColor = .red
        view.addSubview(redView)
        
        // Blue view
        let blueView = UIView(frame: CGRect(x: 20, y: 20, width: 420, height: 420))
        blueView.backgroundColor = .blue
        redView.addSubview(blueView)
        
        // Orange view
        let orangeView = UIView(frame: CGRect(x: 20, y: 20, width: 380, height: 380))
        orangeView.backgroundColor = .orange
        blueView.addSubview(orangeView)
        
        // Yellow view
        let yellowView = UIView(frame: CGRect(x: 20, y: 20, width: 340, height: 100))
        yellowView.backgroundColor = .yellow
        orangeView.addSubview(yellowView)
        
        
        // Прямоугольник с координатами для конечного результата
        var resultFrame = CGRect.zero
        // Прямоугольник рандомный, с которым будем работать
        let randomRect: CGRect = CGRect(x: 0, y: 0, width: 100, height: 50)
        yellowView.frame
        resultFrame = orangeView.convert(yellowView.bounds, from: yellowView)
       
        let overlay = UIView(frame: resultFrame)
        overlay.backgroundColor = UIColor(white: 1.0, alpha: 0.9)
        overlay.layer.borderColor = UIColor.black.cgColor
        overlay.layer.borderWidth = 1.0
        view.addSubview(overlay)
    }
}

var coordinateSystem = CoordinateSystem()
PlaygroundPage.current.liveView = coordinateSystem