Invalid location coordinate

Question

I have two coordinates:

@property (assign) CLLocationCoordinate2D coordinate1;
@property (assign) CLLocationCoordinate2D coordinate2;

During init I'm making them invalid (to be able to check later if it was set):

_coordinate1 = kCLLocationCoordinate2DInvalid;
_coordinate2 = kCLLocationCoordinate2DInvalid;

And then in method i check if they're valid:

- (void)checkIfValid {
    BOOL coordinatesAreValid = (CLLocationCoordinate2DIsValid(_coordinate1) && CLLocationCoordinate2DIsValid(_coordinate2));
    NSAssert(coordinatesAreValid, @"You didn't set up coordinates!");
}

Before i call the method, i set these coordinates via this way:

[_myclassinstance setCoordinate1:CLLocationCoordinate2DMake(mapView.region.center.longitude, mapView.region.center.latitude)];
[_myclassinstance setCoordinate2:CLLocationCoordinate2DMake(mapView.region.center.longitude, mapView.region.center.latitude)];
[_myclassinstance checkIfValid];

The problem is that an app claims, the coordinates are wrong. I've printed them, they seem to be ok:

(lldb) p _coordinate1
(CLLocationCoordinate2D) $1 = {
  latitude = -122.4612387012154
  longitude = 37.72925050874177
}
(lldb) p _coordinate2
(CLLocationCoordinate2D) $2 = {
  latitude = -122.3582012987846
  longitude = 37.84612098703619
}

However printing checking isn't working, also assert runs:

p (int)CLLocationCoordinate2DIsValid(_coordinate1)
(int) $3 = 0

Does anyone have any idea why is this happening? Any help will be welcomed :)

Answer 1

I don't know much about what CLLocationCoordinate2DIsValid supposed to give you, but according to the docs:

A coordinate is considered invalid if it meets at least one of the following criteria:

• Its latitude is greater than 90 degrees or less than -90 degrees.
• Its longitude is greater than 180 degrees or less than -180 degrees.

So since your latitude is less than -90 degrees, I guess the method is just doing their job.

Edit: It appears that you just used CLLocationCoordinate2DMake with wrong parameters. It should be:

[_myclassinstance setCoordinate1:CLLocationCoordinate2DMake(lattitude, mapView.region.center.longitude)];

Swap latitude and longitude.

Answer 2

From the documentation:

A coordinate is considered invalid if it meets at least one of the following criteria:

Its latitude is greater than 90 degrees or less than -90 degrees. Its longitude is greater than 180 degrees or less than -180 degrees.

Looks like your latitude is -122 deg. which is outside of the valid range.