Get direction of User by CLLocation

Question

Hi, i am working on GPS ios app.

I want to display user's location on Circle as shown in image.

The user is in center.

I want to display his friend's location on proper direction.

I had already got langitude and latitude of both user .

But how can i get other user's direction?

If can i use Bearing angle?

enter image description here

I get the Distance between two uses by this code

CLLocation *locA = [[CLLocation alloc] initWithLatitude:Latitude longitude:Longitude];
CLLocation *locB = [[CLLocation alloc] initWithLatitude:app.lat longitude:app.lag];
CLLocationDistance distance = [locB distanceFromLocation:locA];

Thanks for Help!!

@RDC I already has distance between two location. I want Direction between this location. — Priyank Gandhi, Apr 11 '13 at 12:15

Chirag Pipaliya · Answer 1 · 2013-04-11T12:30:07.617

1

You can do it using two ways :
1.

CLLocationCoordinate2D start = { c_lat, c_long };
CLLocationCoordinate2D destination = { [[dic valueForKey:@"business_lat"]doubleValue], [[dic valueForKey:@"business_long"]doubleValue] };

NSString *googleMapsURLString = [NSString stringWithFormat:@"http://maps.google.com/?saddr=%1.6f,%1.6f&daddr=%1.6f,%1.6f&",start.latitude, start.longitude, destination.latitude, destination.longitude];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:googleMapsURLString]];

2.

Using Google API

In API you just need to pass origin name and destination name

Hope this helped....

edited Apr 11 '13 at 12:30

answered Apr 11 '13 at 12:21

Chirag Pipaliya

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BY THIS I CAN ONLY DISPLAY THAT POINT IN GOOGLE POINT. I WANT TO DISPLAY IT IN MY UI AS SHOWN IN IMAGE. – Priyank Gandhi Apr 11 '13 at 12:32
@PriyankGandhi : Just parse google api responce and set data according your choise. Do not forget to pass your origin and destination. – Chirag Pipaliya Apr 11 '13 at 12:34
@PriyankGandhi : Please check both answer. – Chirag Pipaliya Apr 11 '13 at 12:38
I dont have source and Destination. I have two set of Longitude and latitude of Person which is constantly updated – Priyank Gandhi Apr 11 '13 at 12:39
@PriyankGandhi : Use first answer – Chirag Pipaliya Apr 11 '13 at 12:40
@PriyankGandhi : If you want to use second answer then you need to get address from latlong using another google api. – Chirag Pipaliya Apr 11 '13 at 12:41
But if i use first i can only display this in google Map right? – Priyank Gandhi Apr 11 '13 at 12:42
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/28027/discussion-between-chirag-pipaliya-and-priyank-gandhi) – Chirag Pipaliya Apr 11 '13 at 12:42

score 0 · Accepted Answer · edited May 23 '17 at 10:25

0

This question describing how to compute bearing using the haversine function

edited May 23 '17 at 10:25

Community

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answered Apr 11 '13 at 12:25

Engin Kurutepe

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Get direction of User by CLLocation

2 Answers2