11#import <BaiduMapAPI_Base_Navi/BMKTypes.h>
13#import <BaiduMapAPI_Base/BMKTypes.h>
17@protocol BMKOverlay <BMKAnnotation>
21@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
24@property (nonatomic, readonly)
BMKMapRect boundingMapRect;
矩形,用直角地理坐标表示
Definition BMKTypes.h:233