ios – 确定纬度经度点是否在Mapview中的MKPolygon中？

概述此时,我正在试图弄清楚MKMapView上的坐标是否在提前绘制出来的纬度/经度的MKPolygon内. 我正在使用CGPathContainsPoint来确定坐标是否在地图上的多边形内,但无论我选择哪个坐标,它总是返回false. 任何人都可以解释究竟出了什么问题？下面是我在Swift中的代码. class ViewController: UIViewController, MKMapViewDe 此时,我正在试图弄清楚MKMapVIEw上的坐标是否在提前绘制出来的纬度/经度的MKpolygon内.

我正在使用CGPathContainsPoint来确定坐标是否在地图上的多边形内,但无论我选择哪个坐标,它总是返回false.

任何人都可以解释究竟出了什么问题？下面是我在Swift中的代码.

class VIEwController: UIVIEwController,MKMapVIEwDelegate@IBOutlet weak var mapVIEw: MKMapVIEw!    let initialLocation = CLLocation(latitude: 43.656734,longitude: -79.381576)    let point = CGPointMake(43.656734,-79.381576)    let regionRadius: CLLocationdistance = 500    let point1 = CLLocationCoordinate2D(latitude: 43.656734,longitude: -79.381576)    var points = [CLLocationCoordinate2DMake(43.655782,-79.382094),CLLocationCoordinate2DMake(43.657499,-79.382310),CLLocationCoordinate2DMake(43.656656,-79.380497),CLLocationCoordinate2DMake(43.655782,-79.382094)]    overrIDe func vIEwDIDLoad() {        super.vIEwDIDLoad()        centerMapOnLocation(initialLocation)        let polygon = MKpolygon(coordinates: &points,count: points.count)        mapVIEw.addOverlay(polygon)        var annotation = MKPointAnnotation()        annotation.coordinate = point1        annotation.Title = "Test"        annotation.subTitle = "Test"        mapVIEw.addAnnotation(annotation)        self.mapVIEw.delegate = self    }    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! {        if overlay is MKpolygon {            let polygonVIEw = mkpolygonrenderer(overlay: overlay)            polygonVIEw.strokecolor = UIcolor.redcolor()            if  CGPathContainsPoint(polygonVIEw.path,nil,CGPointMake(43.656734,-79.381576),true) {                print("True!!!!!")            } else {                println("False")            }            return polygonVIEw        }        return nil    }

解决方法 针对Swift 3进行了更新

let polygonRenderer = mkpolygonrenderer(polygon: polygon)let mapPoint: MKMapPoint = MKMapPointForCoordinate(coordinate)let polygonVIEwPoint: CGPoint = polygonRenderer.point(for: mapPoint)if polygonRenderer.path.contains(polygonVIEwPoint){    print("Your location was insIDe your polygon.")}

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