分割的圓形的UIView到5條相等角件

Question

我有程序創建這樣一個UIView：

forecastWeatherWheel.backgroundColor = UIColor(red: 255/255, green: 255/255, blue: 255/255, alpha: 0.1) 
    forecastWeatherWheel.frame = CGRect(x: -(dailyWeatherContainer.frame.width + 100)/2, 
             y: self.view.bounds.height/2 - ((dailyWeatherContainer.frame.height + 100)/2), 
             width: dailyWeatherContainer.frame.width + 100, 
             height: dailyWeatherContainer.frame.height + 100) 
    forecastWeatherWheel.layer.cornerRadius = forecastWeatherWheel.bounds.size.width/2 
    forecastWeatherWheel.translatesAutoresizingMaskIntoConstraints = false 
    self.view.addSubview(forecastWeatherWheel) 

我需要添加（再次編程）5子視圖此UIView的。 我努力尋找subViews的錨點的座標。

思考成度，我圈出來的superView必須分成72°，每個相等的部分，邊界的座標必須是我的子視圖的錨點。

事情是這樣的：

Answer 1

像這樣（從頂部開始和去順時針）：

let radius: Double = 100 
let cx: Double = 0 
let cy: Double = 0 
for deg in stride(from: 90, to: -269, by: -72) { 
    let a = Double(deg)*M_PI/180 
    let x = cx + radius * cos(a) 
    let y = cy + radius * sin(a) 
    print("Angle \(a): \(x), \(y)") 
}