iPhone - CLHeading to find direction

2
votes

In my iPhone application, I'm using using CLLocationManager to find the direction in which my iphone is pointing to. I'm using the property "heading". Its giving me x,y and z values. How can I find from these values in which direction (north or south or east or west) I'm currently pointing to?

2
iphonedirection

2 Answers

1
votes

you should use method [locationManager startUpdateHeading] to enable get the angle relative to the geographic North Pole or magnetic North Pole. Then you can get the value in

 - (void)locationManager:(CLLocationManager *)manager didUpdateHeading:(CLHeading *)newHeading 
{
   NSLog(@"%f",newHeading.trueHeading);
}
0
votes

heading is a CLHeading object. As one look in the documentation would have told you, it also has properties for the true and magnetic headings in degrees.