小编Sic*_*Liu的帖子

我试图获取以下代码在地图上绘制多边形但由于某种原因它不起作用.我在这里出了什么问题？

import UIKit
import MapKit

class ViewController: UIViewController {

    @IBOutlet weak var mapView: MKMapView!
    override func viewDidLoad() {
        super.viewDidLoad()
        let initialLocation = CLLocation(latitude: 49.140838, longitude: -123.127886)
        centerMapOnLocation(initialLocation)
        addBoundry()
    }


    func addBoundry()
    {
        var points=[CLLocationCoordinate2DMake(49.142677,  -123.135139),CLLocationCoordinate2DMake(49.142730, -123.125794),CLLocationCoordinate2DMake(49.140874, -123.125805),CLLocationCoordinate2DMake(49.140885, -123.135214)]

        let polygon = MKPolygon(coordinates: &points, count: points.count)

        mapView.addOverlay(polygon)
    }


    let regionRadius: CLLocationDistance = 1000
    func centerMapOnLocation(location: CLLocation) {
        let coordinateRegion = MKCoordinateRegionMakeWithDistance(location.coordinate,
            regionRadius * 2.0, regionRadius * 2.0)
        mapView.setRegion(coordinateRegion, animated: true)
    }


}


func mapView(mapView: MKMapView!, rendererForOverlay overlay: MKOverlay!) -> MKOverlayRenderer! { …

我有下面的快速代码，它绘制一个多边形并在 MKMapView 上添加注释。我想弄清楚如何识别注释的坐标是否在多边形内？

import UIKit
import MapKit

class ViewController: UIViewController {

    @IBOutlet weak var mapView: MKMapView!

    override func viewDidLoad() {
        super.viewDidLoad()
        let initialLocation = CLLocation(latitude: 49.140838, longitude: -123.127886)
        centerMapOnLocation(initialLocation)
        addBoundry()

        var annotation = MKPointAnnotation()
        annotation.coordinate = point1
        annotation.title = "Roatan"
        annotation.subtitle = "Honduras"

        mapView.addAnnotation(annotation)
    }

    var points = [CLLocationCoordinate2DMake(49.142677,  -123.135139),
                  CLLocationCoordinate2DMake(49.142730, -123.125794),
                  CLLocationCoordinate2DMake(49.140874, -123.125805),
                  CLLocationCoordinate2DMake(49.140885, -123.135214)]

    var point1 = CLLocationCoordinate2DMake(49.141821, -123.131577)

    func addBoundry() {
        let polygon = MKPolygon(coordinates: &points, count: points.count)

        mapView.addOverlay(polygon)
    }

    let regionRadius: CLLocationDistance = 1000

    func centerMapOnLocation(location: …