iOSの位置情報を比較したい CLLocationCoordinate2Dlatitude double lat1 = (double)self.mapView.centerCoordinate.latitude; double lon1 = (double)self.mapView.centerCoordinate.longitude; double lat2 = (double)newLocation.coordinate.latitude; double lon2 = (double)newLocation.coordinate.longitude; if (((lat1 - lat2) < 1.0f) && ((lon1 - lon2) < 1.0f)) {

`MKMetersBetweenMapPoints`


MKMapPoint p1 = MKMapPointForCoordinate(self.mapView.centerCoordinate);
MKMapPoint p2 = MKMapPointForCoordinate(newLocation.coordinate);

if (MKMetersBetweenMapPoints(p1, p2) < 100.0) { // 100m