Swift中的Xcode方向坐标

我有这段代码来获取从源点（用户位置）到注释（从用户选择的pin）的方向`

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现在我需要得到方向路线的坐标（CLLocationCordinate2D）。我该怎么做？

这是从多段线获取坐标的方法。尽管您只需要将多段线添加到地图中。需要坐标是不寻常的

let directions = MKDirections(request: request)

directions.calculate { (response, error) in

    if let error = error {

        print(error.localizedDescription)

        return
    }

    if let response = response {

        if let route = response.routes.first {

            self.map.add(route.polyline, level: .aboveRoads)

            let coordinates: Array<CLLocationCoordinate2D> = {

                var array = Array<CLLocationCoordinate2D>()

                let polyline = route.polyline

                for i in 0 ..< polyline.pointCount {

                    let point = polyline.points()[i]

                    array.append(MKCoordinateForMapPoint(point))
                }

                return array
            }()

            dump(coordinates)
        }
    }
}

let directions=MKDirections（请求：请求）
计算{（响应，错误）的方向
如果let error=error{
打印（错误。本地化描述）
返回
}
如果让响应=响应{
如果let route=response.routes.first{
self.map.add（route.polyline，标高：.overroads）
让坐标：数组={
var数组=数组（）
设多段线=route.polyline
对于0中的i..

let directions = MKDirections(request: request)

directions.calculate { (response, error) in

    if let error = error {

        print(error.localizedDescription)

        return
    }

    if let response = response {

        if let route = response.routes.first {

            self.map.add(route.polyline, level: .aboveRoads)

            let coordinates: Array<CLLocationCoordinate2D> = {

                var array = Array<CLLocationCoordinate2D>()

                let polyline = route.polyline

                for i in 0 ..< polyline.pointCount {

                    let point = polyline.points()[i]

                    array.append(MKCoordinateForMapPoint(point))
                }

                return array
            }()

            dump(coordinates)
        }
    }
}