Haversine.h

//
//  Haversine.h
//  ShortestPath
//
//  Created by Yoo Rinjae on 12. 11. 8..
//  Copyright (c) 2012년 DearMai. All rights reserved.
//

#import <Foundation/Foundation.h>

extern float const HAVERSINE_RADS_PER_DEGREE;
extern float const HAVERSINE_MI_RADIUS;
extern float const HAVERSINE_KM_RADIUS;
extern float const HAVERSINE_M_PER_KM;
extern float const HAVERSINE_F_PER_MI;

@interface Haversine : NSObject {
    float lat1;
    float lon1;
    float lat2;
    float lon2;
}

@property float lat1;
@property float lon1;
@property float lat2;
@property float lon2;

- (id)init;
- (id)initWithLat1:(float)newLat1
              lon1:(float)newLon1
              lat2:(float)newLat2
              lon2:(float)newLon2;
- (float)distance;
- (float)toKilometers;
- (float)toMeters;
- (float)toMiles;
- (float)toFeet;

@end