MMKSpan

@interface MMKSpan : NSObject

+ (nonnull MMKSpan *)spanWithHorizontalAngle:( double)horizontalAngle
                               verticalAngle:( double)verticalAngle;

@property (nonatomic, readonly) double horizontalAngle;
The horizontal view angle

@property (nonatomic, readonly) double verticalAngle;
The vertical view angle

+ (nonnull MMKSpan *)spanWithHorizontalAngle:( double)horizontalAngle
                               verticalAngle:( double)verticalAngle;

@property (nonatomic, readonly) double horizontalAngle;

@property (nonatomic, readonly) double verticalAngle;