detect if a point is inside a MKPolygon overlay

Question

I want to be able to tell if tap is within a MKPolygon.

I have a MKPolygon:

CLLocationCoordinate2D  points[4];

points[0] = CLLocationCoordinate2DMak         


        

Answer 1

Here is Swift 4.2 updated version thanks to @Steve Stomp

extension MKPolygon {
    func contain(coor: CLLocationCoordinate2D) -> Bool {
        let polygonRenderer = MKPolygonRenderer(polygon: self)
        let currentMapPoint: MKMapPoint = MKMapPoint(coor)
        let polygonViewPoint: CGPoint = polygonRenderer.point(for: currentMapPoint)
        if polygonRenderer.path == nil {
            return false
        }else{
            return polygonRenderer.path.contains(polygonViewPoint)
        }
    }
}