ios - MKMapView region property returning bad struct -


i'm working mkmapkit , setting region full size united states , it's displaying expected. when inspecting self.mapview.region property i'm getting weird results affecting calculations later in program.

here how i'm setting map view:

- (void)viewdidload {     [super viewdidload];     mkcoordinateregion usa = mkcoordinateregionmake(cllocationcoordinate2dmake(39.4, -91.5), mkcoordinatespanmake(40, 40));     self.mapview = [[mkmapview alloc] initwithframe:self.view.bounds];     [self.view addsubview:self.mapview];     self.mapview.region = usa;     self.mapview.delegate = self;     self.mapview.showsuserlocation = yes;     [self.mapview.userlocation addobserver:self forkeypath:@"location" options:0 context:nil]; }

this usa mkcoordinateregion, looks fine , works:

(lldb) p usa (mkcoordinateregion) $0 = {   (cllocationcoordinate2d) center = {     (cllocationdegrees) latitude = 39.4     (cllocationdegrees) longitude = -91.5   }   (mkcoordinatespan) span = {     (cllocationdegrees) latitudedelta = 40     (cllocationdegrees) longitudedelta = 40   } }

then set region self.mapview.region = usa; , break after it, output of self.mapview.region.

(lldb) p [self.mapview region] (mkcoordinateregion) $1 = {   (cllocationcoordinate2d) center = {     (cllocationdegrees) latitude = 39.4     (cllocationdegrees) longitude = 39.4     (cllocationdegrees) latitudedelta = 39.4     (cllocationdegrees) longitudedelta = -91.5   }   (mkcoordinatespan) span = {     (cllocationdegrees) latitude = 66.4999527377778     (cllocationdegrees) longitude = 66.4999527377778     (cllocationdegrees) latitudedelta = 66.4999527377778     (cllocationdegrees) longitudedelta = 67.4999957172512   }   (cllocationcoordinate2d) center = {} }

so problem center struct wrong, longitude off , cllocationcoordinate2d shouldn't have delta fields, looks mkcoordinatespan.

cllocationcoordinate2d definition:

typedef struct { cllocationdegrees latitude; cllocationdegrees longitude; } cllocationcoordinate2d;

so idea i'm going wrong? missing blazingly obvious? if wrong way it, how can true data calculations later in app?

using xcode 4.6.1 , ios 6.1 simulator.

i think lldv bug or error in lldb usage. if nslog lat/lon fine.


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