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calculateDistanceBetweenCoord method
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| + (NSNumber*)calculateDistanceBetweenCoord:(CLLocationCoordinate2D)coord1 coord:(CLLocationCoordinate2D)coord2 { | |
| NSInteger nRadius = 6371; // Earth's radius in Kilometers | |
| double latDiff = (coord2.latitude - coord1.latitude) * (M_PI/180); | |
| double lonDiff = (coord2.longitude - coord1.longitude) * (M_PI/180); | |
| double lat1InRadians = coord1.latitude * (M_PI/180); | |
| double lat2InRadians = coord2.latitude * (M_PI/180); | |
| double nA = pow ( sin(latDiff/2), 2 ) + cos(lat1InRadians) * cos(lat2InRadians) * pow ( sin(lonDiff/2), 2 ); | |
| double nC = 2 * atan2( sqrt(nA), sqrt( 1 - nA )); | |
| double nD = nRadius * nC; | |
| // convert to miles | |
| double distanceInMiles = nD * 0.621371; | |
| return @(distanceInMiles); | |
| } | |
| + (NSNumber*)calculateDistanceInMetersBetweenCoord:(CLLocationCoordinate2D)coord1 coord:(CLLocationCoordinate2D)coord2 { | |
| NSInteger nRadius = 6371; // Earth's radius in Kilometers | |
| double latDiff = (coord2.latitude - coord1.latitude) * (M_PI/180); | |
| double lonDiff = (coord2.longitude - coord1.longitude) * (M_PI/180); | |
| double lat1InRadians = coord1.latitude * (M_PI/180); | |
| double lat2InRadians = coord2.latitude * (M_PI/180); | |
| double nA = pow ( sin(latDiff/2), 2 ) + cos(lat1InRadians) * cos(lat2InRadians) * pow ( sin(lonDiff/2), 2 ); | |
| double nC = 2 * atan2( sqrt(nA), sqrt( 1 - nA )); | |
| double nD = nRadius * nC; | |
| // convert to meters | |
| return @(nD*1000); | |
| } |
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