Question

我有一个坐标对象数组，想要在Swift 3中的Mapkit中将它们（按照它们的顺序）连接成Polyline。我该怎么做呢？这是我的数据结构

List<Location> (
    [0] Location {
        lat = 37.33477977;
        long = -122.03369603;
    },
    [1] Location {
        lat = 37.33477977;
        long = -122.03369603;
    },
    [2] Location {
        lat = 37.33477977;
        long = -122.03369603;
    },
    [3] Location {
        lat = 37.33305632;
        long = -122.05318781;
    },
    [4] Location {
        lat = 37.33298105;
        long = -122.0535463;
    }
)

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Answer 1

您必须将其转换为[CLLocation]数组，并查看此similar question：

var locations = [CLLocation(latitude: 37.582691, longitude: 127.011186), CLLocation(latitude: 37.586112,longitude: 127.011047), CLLocation(latitude: 37.588212, longitude: 127.010438)]
        var coordinates = locations.map({(location: CLLocation) -> CLLocationCoordinate2D in return location.coordinate})
        var polyline = MKPolyline(coordinates: &coordinates, count: locations.count)

使用坐标列在Mapkit上画一条线

1 个答案: