void SetMapToCoordinate(CoreLocation.CLLocationCoordinate2D coordinate)
{
var currentSpan = new MapKit.MKCoordinateSpan(0.05, 0.05);
var region = new MapKit.MKCoordinateRegion(coordinate, currentSpan);
MyMap.SetRegion(region, true);
}
void SetMapToCoordinate(CoreLocation.CLLocationCoordinate2D coordinate)
{
var currentSpan = new MapKit.MKCoordinateSpan (0.05, 0.05);
var region = new MapKit.MKCoordinateRegion (coordinate, currentSpan);
MyMap.SetRegion (region, true);
}
private void OriginMapView_DidUpdateUserLocation(object sender, MapKit.MKUserLocationEventArgs e)
{
// throw new NotImplementedException();
// Check whether location set to something
if (originMapView.UserLocation != null)
{
var coordinates = originMapView.UserLocation.Coordinate; // get center
var span = new MapKit.MKCoordinateSpan(0.15, 0.15); // how many degrees of lat/lng to show inside the span
originMapView.Region = new MapKit.MKCoordinateRegion(coordinates, span);
originMapView.RemoveAnnotations(); // clear all annotations from previous operations from location/map updates
originMapView.AddAnnotation(new MKPointAnnotation()
{
Coordinate = coordinates,
Title = "My own location"
});
}
}
// MKCoordinateRegionMake
public MKCoordinateRegion(CLLocationCoordinate2D center, MKCoordinateSpan span)
{
this.Center = center;
this.Span = span;
}
public static void ChangeRegionSpanDependingOnPinchScale(this MKMapView mapView, MKCoordinateSpan originalSpan, nfloat scale)
{
var centerPixelX = LongitudeToPixelSpaceX(mapView.Region.Center.Longitude);
var centerPixelY = LatitudeToPixelSpaceY(mapView.Region.Center.Latitude);
var topLeftLongitude = mapView.Region.Center.Longitude - (originalSpan.LongitudeDelta / 2);
var topLeftLatitude = mapView.Region.Center.Latitude - (originalSpan.LatitudeDelta / 2);
var topLeftPixelX = LongitudeToPixelSpaceX(topLeftLongitude);
var topLeftPixelY = LatitudeToPixelSpaceY(topLeftLatitude);
var deltaPixelX = Math.Abs(centerPixelX - topLeftPixelX);
var deltaPixelY = Math.Abs(centerPixelY - topLeftPixelY);
var scaledDeltaPixelX = deltaPixelX / scale;
var scaledDeltaPixelY = deltaPixelY / scale;
var newLongitudeForTopLeft = PixelSpaceXToLongitude(centerPixelX - scaledDeltaPixelX);
var newLatitudeForTopLeft = PixelSpaceYToLatitude(centerPixelY - scaledDeltaPixelY);
var newDeltaLongitude = Math.Abs(newLongitudeForTopLeft - mapView.Region.Center.Longitude) * 2;
var newDeltaLatitude = Math.Abs(newLatitudeForTopLeft - mapView.Region.Center.Latitude) * 2;
newDeltaLatitude = Math.Max(0.0f, Math.Min(newDeltaLatitude, 90.0f));
newDeltaLongitude = Math.Max(0.0f, Math.Min(newDeltaLongitude, 90.0f));
var region = new MKCoordinateRegion(mapView.Region.Center, new MKCoordinateSpan(newDeltaLatitude, newDeltaLongitude));
mapView.SetRegion(region, false);
}
