0
にドロールートを削除するには:どのように私はこの機能を地図上にドロールートを実装しているマップ
func drawRouteOnMap(sourceLocation sourceLocation: CLLocation, destinationLocation: CLLocation) {
drawMapActivated = true
let sourcePlacemark = MKPlacemark(coordinate: sourceLocation.coordinate, addressDictionary: nil)
let destinationPlacemark = MKPlacemark(coordinate: destinationLocation.coordinate, addressDictionary: nil)
let sourceMapItem = MKMapItem(placemark: sourcePlacemark)
let destinationMapItem = MKMapItem(placemark: destinationPlacemark)
let destinationAnnotation = MKPointAnnotation()
destinationAnnotation.title = "ATM"
if let location = destinationPlacemark.location {
destinationAnnotation.coordinate = location.coordinate
}
self.mapView.showAnnotations([destinationAnnotation], animated: true)
let directionRequest = MKDirectionsRequest()
directionRequest.source = sourceMapItem
directionRequest.destination = destinationMapItem
directionRequest.transportType = .Automobile
let directions = MKDirections(request: directionRequest)
directions.calculateDirectionsWithCompletionHandler {
(response, error) -> Void in
guard let response = response else {
if let error = error {
print("Error: \(error)")
}
return
}
let route = response.routes[0]
self.mapView.addOverlay((route.polyline), level: MKOverlayLevel.AboveRoads)
let rect = route.polyline.boundingMapRect
self.mapView.setRegion(MKCoordinateRegionForMapRect(rect), animated: true)
}
}
しかし、ここでの問題は、私は別のルートを描きたいとき、それは以前のルートを上書きですので、非常に醜く見える。私は古いものを削除し、新しいものを描きたい、これを行う方法。
ご協力いただきありがとうございます。