CLLocationCoordinate2D到CLLocation

Question

我在viewDidLoad中有以下循环:

    for(int i=1; i<[eventsArray count]; i++) {
  NSArray *componentsArray = [[eventsArray objectAtIndex:i] componentsSeparatedByString:@","];
  if([componentsArray count] >=6) {
   Koordinate *coord = [[Koordinate alloc] init];
   coord.latitude = [[componentsArray objectAtIndex:0] floatValue];
   coord.longtitude = [[componentsArray objectAtIndex:1] floatValue];
   coord.magnitude = [[componentsArray objectAtIndex:2] floatValue];
   coord.depth = [[componentsArray objectAtIndex:3] floatValue];
   coord.title = [componentsArray objectAtIndex:4];
   coord.strasse = [componentsArray objectAtIndex:5];
   coord.herkunft = [componentsArray objectAtIndex:6];
   coord.telefon = [componentsArray objectAtIndex:7];
   coord.internet = [componentsArray objectAtIndex:8];
   [eventPoints addObject:coord];


  }

coord是CLLocationCoordinate2D

但是我如何在下面的方法中使用coord,因为我需要这个以获得两个坐标之间的距离:

    - (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation{

}

请帮帮我,我被困了!

谢谢大家事先帮忙

Answer 1

CLLocation有一个名为的init方法-(id)initWithLatitude:(CLLocationDegrees)latitude longitude:(CLLocationDegrees)longitude.然后- (CLLocationDistance)getDistanceFrom:(const CLLocation *)location用来获取两个CLLocation对象之间的距离.

Answer 2

简单

CLLocation *location = [[CLLocation alloc] initWithLatitude:lat longitude:lon];

Answer 3

对于斯威夫特人群,

我有一个名为"fetchCafesArroundLocation"的方法,在地图移动后刷新.这就是我如何处理从CLLocationCoordiate2d获取Lat和Lon到CLLocation然后将CLLocation变量传递给处理方法的方法.

func mapView(mapView: MKMapView!, regionDidChangeAnimated animated: Bool){

    var centre = mapView.centerCoordinate as CLLocationCoordinate2D

    var getLat: CLLocationDegrees = centre.latitude
    var getLon: CLLocationDegrees = centre.longitude


    var getMovedMapCenter: CLLocation =  CLLocation(latitude: getLat, longitude: getLon)

    self.lastLocation = getMovedMapCenter
    self.fetchCafesAroundLocation(getMovedMapCenter)

}