About

Included are two straightforward methods on CLLocation that provide some convenience calculations that I needed on a recent project.

-locationAtDistance:andBearing:

The first allows you to calculate a new point at a specified distance and bearing from an existing point. Usage is straightforward:

#import <CoreLocation/CoreLocation.h>
#import "CLLocation+LocationExtensions.h"

CLLocation* startPoint = [[CLLocation alloc] initWithLatitude:39.90657 longitude:-75.16656];
CLLocation* newPoint = [startPoint locationAtDistance:300 andBearing:180];
NSLog(@"New point: %@", newPoint); // new point is at 39.90387204, -75.16656

-bearingTo:

The second finds the bearing between two existing points.

#import <CoreLocation/CoreLocation.h>
#import "CLLocation+LocationExtensions.h"

CLLocation* startPoint = [[CLLocation alloc] initWithLatitude:39.90657 longitude:-75.16656];
CLLocation* endPoint = [[CLLocation alloc] initWithLatitude:39.90387204 longitude:-75.16656];
CLLocationDegrees bearing = [startPoint bearingTo:endPoint];
NSLog(@"Bearing: %f", bearing); // bearing is 180

License

Simplified BSD License. See the LICENSE file for details.