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我想使用 Haversine 公式计算两个地方之间的距离。实际上我有两个地方的纬度和经度值。现在我想使用 Haversine 公式计算这些地方之间的距离。

例如：

 First Place: 
           "lat" :  12.97159870,
           "lng" : -77.59456270

Second Place:
           "lat" :  9.915996999999999,
           "lng" : -78.1218470
        },

现在我想使用Haversine Formula计算距离。

请帮帮我。谢谢！

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3 回答 3

12

您可以使用 CLLocation 类 (CoreLocation.framework) 方法的 distanceFromLocation:(CLLocation*)loc;

CLLocation *locA = [[CLLocation alloc] initWithLatitude:lat1 longitude:long1];
CLLocation *locB = [[CLLocation alloc] initWithLatitude:lat2 longitude:long2];
CLLocationDistance distance = [locA distanceFromLocation:locB];
[locA release]; [locB release];
于 2011-08-03T11:16:11.160 回答
6

iOS 提供标准方法来计算 2 个地理位置之间的距离 - 您需要为此使用 CLLocation 类：

#import <CoreLocation/CoreLocation.h>

CLLocation *loc1 = [[[CLLocation alloc] initWithLatitude:12.97159870 longitude:-77.59456270] autorelease];

CLLocation *loc2 = [[[CLLocation alloc] initWithLatitude: 9.915996 longitude:-78.1218470] autorelease];

double distance = [loc1 distanceFromLocation: loc2];

您还需要添加CoreLocation.framework与您的项目的链接。

于 2011-08-03T11:15:54.393 回答
1

// 将库复制到您的项目https://github.com/heycarsten/haversine-objc。然后你通过使用获得两个位置之间的距离

    Haversine *hvs = [[Haversine alloc]initWithLat1:Lati1 lon1:Longi1 lat2:Lati2 lon2:Longi2];

// 使用数学公式获取距离..

    double dLat1InRad = DEGREES_TO_RADIANS(Lati1);
    double dLong1InRad = DEGREES_TO_RADIANS(Longi1);
    double dLat2InRad = DEGREES_TO_RADIANS(Lati2);
    double dLong2InRad = DEGREES_TO_RADIANS(Longi2);
    double dLongitude = dLong2InRad - dLong1InRad;
    double dLatitude = dLat2InRad - dLat1InRad;
    double a = pow(sin(dLatitude/2.0), 2)+ cos(dLat1InRad) * cos(dLat2InRad) * pow(sin(dLongitude / 2.0), 2);
    double c = 2.0 * asin(sqrt(a));
    const double kEarthRadiusKms = 6376.5;
    double dDistance = kEarthRadiusKms * c;
于 2015-06-19T07:52:33.270 回答