How to check if MKCoordinateRegion contains CLLocationCoordinate2D without using MKMapView?

Question

I need to check if user location belongs to the MKCoordinateRegion. I was surprised not to find simple function for this, something like: CGRectContainsCGPoint(rect,

Answer 1

Owen Godfrey, the objective-C code doesn´t work, this is the good code: Fails on Objective-C, this is the good code:

/* Standardises and angle to [-180 to 180] degrees */
- (CLLocationDegrees)standardAngle:(CLLocationDegrees)angle {
    angle=fmod(angle,360);
    return angle < -180 ? -360 - angle : angle > 180 ? 360 - 180 : angle;
}

-(BOOL)thisRegion:(MKCoordinateRegion)region containsLocation:(CLLocation *)location{
    CLLocationDegrees deltaLat =fabs([self standardAngle:(region.center.latitude-location.coordinate.latitude)]);
    CLLocationDegrees deltaLong =fabs([self standardAngle:(region.center.longitude-location.coordinate.longitude)]);
    return region.span.latitudeDelta >= deltaLat && region.span.longitudeDelta >=deltaLong;
}
    CLLocationDegrees deltalong = fabs(standardAngle(region.center.longitude - location.coordinate.longitude));
    return region.span.latitudeDelta >= deltaLat && region.span.longitudeDelta >= deltalong;
}

Thanks!