12 NS_ASSUME_NONNULL_BEGIN
18 CLLocationCoordinate2D
_pt;
26 @property (nonatomic, assign) CLLocationCoordinate2D pt;
30 @property (nonatomic, assign) CGPoint anchor;
33 @property(nonatomic) CGFloat zoomLevel;
39 @property(nonatomic, strong) UIImage *icon;
42 @property(nonatomic) GLfloat alpha;
50 + (nullable instancetype)groundOverlayWithPosition:(CLLocationCoordinate2D)position
51 zoomLevel:(CGFloat)zoomLevel
52 anchor:(CGPoint)anchor