检测贝塞尔路径上的触摸是不正确的

Question

我使用UIBezier Path绘制了一个带有此代码的分段圆圈：

func createCircleWithStartAndgle(startAngle: CGFloat, endAngle: CGFloat, chartSection: Int) {
    var subView = circleView
    var radius: CGFloat = circleView.bounds.size.width / 2 - 20
    var circleShapeLayer = CAShapeLayer()
    var arcCenter = CGPoint(x: radius, y: radius)
    var bezierPath = UIBezierPath(arcCenter: arcCenter, radius: radius, startAngle: startAngle, endAngle: endAngle, clockwise: true)



    circleShapeLayer.path = bezierPath.cgPath

    circleShapeLayer.position = CGPoint(x:(subView?.bounds.midX)! - radius , y: (subView?.bounds.midY)! - radius)
    circleShapeLayer.fillColor = UIColor.clear.cgColor
    var strokeColor = UIColor()
    switch chartSection {
    case 0:
        strokeColor = .red
        firstLayer = circleShapeLayer
        fPath = bezierPath
    case 1:
        strokeColor = .yellow
        secondLayer = circleShapeLayer
        sPath = bezierPath
    case 2:
        strokeColor = .blue
        thirdLayer = circleShapeLayer
        thPath = bezierPath
    default:
        strokeColor = .gray
    }
    circleShapeLayer.strokeColor = strokeColor.cgColor
    circleShapeLayer.lineWidth = 10
    subView?.layer.insertSublayer(circleShapeLayer, at: UInt32(chartSection))

}

这给了我一个满意的结果：

现在我希望能够触及每个细分并识别细分，并使其更大。

当我使用此代码检测触摸时，它适用于红色和黄色段（第一和第二路径），但为了识别蓝色段，我需要点击左上角或稍微向上一点蓝色部分。如果我点击片段本身，它会检测到它，因为它是第一段，而不是第三段。

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    let touch = touches.first

    guard let point = touch?.location(in: circleView) else { return }

    guard let sublayers = circleView.layer.sublayers as? [CAShapeLayer] else { return }
    for layer in sublayers {

        if let path = layer.path {
            if path == fPath.cgPath && path.contains(point) {
                print("first segment")
            } else if path == sPath.cgPath && path.contains(point) {
                print("second segment")
            } else if path == thPath.cgPath && path.contains(point) {
                print("third segment")
            }
        }
    }
}

有什么问题？如何正确检测点击并修改tapped bezierPath的strokWidth？