我有这个代码来获取从源点(userLocation)到注释(从用户选择的引脚)的路线.`
func showRouteOnMap() {
let request = MKDirectionsRequest()
request.source = MKMapItem(placemark: MKPlacemark(coordinate: (userLocationForDirections?.coordinate)!, addressDictionary: nil))
if(annotationPin != nil){
request.destination = MKMapItem(placemark: MKPlacemark(coordinate: (coordinateAnnotationPin)!, addressDictionary: nil))
}
request.requestsAlternateRoutes = true
request.transportType = .walking
let directions = MKDirections(request: request)
directions.calculate(completionHandler: {(response, error) in
if error != nil {
print("Error getting directions")
} else {
self.showRoute(response!)
}
})
}
现在我需要获取方向路线的坐标(CLLocationCordinate2D)。我该怎么办?
答案 0 :(得分:1)
这是从折线获取坐标的方法。虽然您只需要将折线添加到地图中。需要坐标是不常见的。
let directions = MKDirections(request: request)
directions.calculate { (response, error) in
if let error = error {
print(error.localizedDescription)
return
}
if let response = response {
if let route = response.routes.first {
self.map.add(route.polyline, level: .aboveRoads)
let coordinates: Array<CLLocationCoordinate2D> = {
var array = Array<CLLocationCoordinate2D>()
let polyline = route.polyline
for i in 0 ..< polyline.pointCount {
let point = polyline.points()[i]
array.append(MKCoordinateForMapPoint(point))
}
return array
}()
dump(coordinates)
}
}
}