Convert MKCoordinateRegion to MKMapRect

Question

I have a square MKMapView in my app, and I wish to set a center point and the exact height/width of the view in meters.

Creating an MKCoordinateRegion and setting th

Answer 1

Use MKMapPointForCoordinate to convert the 2 point of the region (top/left and bottom/right), then create the MKMapRect using the 2 MKMapPoints

        CLLocationCoordinate2D coordinateOrigin = CLLocationCoordinate2DMake(latitude, longitude);
        CLLocationCoordinate2D coordinateMax = CLLocationCoordinate2DMake(latitude + cellSize, longitude + cellSize);

        MKMapPoint upperLeft = MKMapPointForCoordinate(coordinateOrigin);
        MKMapPoint lowerRight = MKMapPointForCoordinate(coordinateMax);

        MKMapRect mapRect = MKMapRectMake(upperLeft.x,
                                          upperLeft.y,
                                          lowerRight.x - upperLeft.x,
                                          lowerRight.y - upperLeft.y);