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2014/10/15 ¤U¤È 10:10:55
iphone Programming Glossary: lat2how to calculate two coordinates distance in objective c? http://stackoverflow.com/questions/1980898/how-to-calculate-two-coordinates-distance-in-objective-c map calculation result. below provided the code i did double GetDistance double lat1 long1 double lng1 la2 double lat2 long2 double lng2 NSLog @ latitude 1 .7f longitude1 .7f latitude2 .7f longtitude2 .7f lat1 lng1 lat2 lng2 double radLat1.. lng1 la2 double lat2 long2 double lng2 NSLog @ latitude 1 .7f longitude1 .7f latitude2 .7f longtitude2 .7f lat1 lng1 lat2 lng2 double radLat1 self rad lat1 double radLat2 self rad lat2 double a radLat1 radLat2 double b self rad lng1 self rad.. longitude1 .7f latitude2 .7f longtitude2 .7f lat1 lng1 lat2 lng2 double radLat1 self rad lat1 double radLat2 self rad lat2 double a radLat1 radLat2 double b self rad lng1 self rad lng2 double s 2 asin sqrt pow sin a 2 2 cos radLat1 cos radLat2..
How do I calculate the distance between two points of latitude and longitude? http://stackoverflow.com/questions/2652167/how-do-i-calculate-the-distance-between-two-points-of-latitude-and-longitude CLLocation alloc initWithLatitude lat1 longitude long1 CLLocation location2 CLLocation alloc initWithLatitude lat2 longitude long2 NSLog @ Distance i meters f location1 distanceFromLocation location2 location1 release location2 release..
CLLocation Category for Calculating Bearing w/ Haversine function http://stackoverflow.com/questions/3925942/cllocation-category-for-calculating-bearing-w-haversine-function double lat1 DegreesToRadians self.coordinate.latitude double lon1 DegreesToRadians self.coordinate.longitude double lat2 DegreesToRadians destinationLocation.coordinate.latitude double lon2 DegreesToRadians destinationLocation.coordinate.longitude.. double lon2 DegreesToRadians destinationLocation.coordinate.longitude double dLon lon2 lon1 double y sin dLon cos lat2 double x cos lat1 sin lat2 sin lat1 cos lat2 cos dLon double radiansBearing atan2 y x return RadiansToDegrees radiansBearing.. destinationLocation.coordinate.longitude double dLon lon2 lon1 double y sin dLon cos lat2 double x cos lat1 sin lat2 sin lat1 cos lat2 cos dLon double radiansBearing atan2 y x return RadiansToDegrees radiansBearing iphone mapkit core location..
http://stackoverflow.com/questions/4130821/iphone-compass-gps-direction heading or bearing equation that you can use if you are at lat1 lon1 and the point you are interested in is at lat2 lon2 then the equation is heading atan2 sin lon2 lon1 cos lat2 cos lat1 sin lat2 sin lat1 cos lat2 cos lon2 lon1 This gives.. at lat1 lon1 and the point you are interested in is at lat2 lon2 then the equation is heading atan2 sin lon2 lon1 cos lat2 cos lat1 sin lat2 sin lat1 cos lat2 cos lon2 lon1 This gives you a bearing in radians which you can convert to degrees by.. the point you are interested in is at lat2 lon2 then the equation is heading atan2 sin lon2 lon1 cos lat2 cos lat1 sin lat2 sin lat1 cos lat2 cos lon2 lon1 This gives you a bearing in radians which you can convert to degrees by multiplying by 180..
How can we find the angle between two locations defined by latitude or longitude http://stackoverflow.com/questions/6745131/how-can-we-find-the-angle-between-two-locations-defined-by-latitude-or-longitude objective c ios ipad ios4 share improve this question The formula to calculate bearing is θ atan2 sin long .cos lat2 cos lat1 .sin lat2 sin lat1 .cos lat2 .cos long Bearing is a direction to move from one location to another location starting.. ipad ios4 share improve this question The formula to calculate bearing is θ atan2 sin long .cos lat2 cos lat1 .sin lat2 sin lat1 .cos lat2 .cos long Bearing is a direction to move from one location to another location starting from north and.. this question The formula to calculate bearing is θ atan2 sin long .cos lat2 cos lat1 .sin lat2 sin lat1 .cos lat2 .cos long Bearing is a direction to move from one location to another location starting from north and then clockwise ...
Help calculating X and Y from Latitude and Longitude in iPhone http://stackoverflow.com/questions/6852195/help-calculating-x-and-y-from-latitude-and-longitude-in-iphone with known lat lon at 0 0 pixels. Called lat1 lon2 in following pseudo code Compute vector 1 from the bottom right lat2 lon2 to the bottom left lat1 lon1 Using simple projection xl lon yl lat then vector 1 lon2 lon1 i lat2 lat1 j Compute vector.. bottom right lat2 lon2 to the bottom left lat1 lon1 Using simple projection xl lon yl lat then vector 1 lon2 lon1 i lat2 lat1 j Compute vector 2 from the lat lon position of person you want latp lonp to put on the map to the bottom left point..
iPhone - Moving a CLLocation by x meters http://stackoverflow.com/questions/7278094/iphone-moving-a-cllocation-by-x-meters would pass the latitude and longitude from your CLLocation to it and then create a new CLLocation from the resulting lat2 and lon2 that it returns Given a starting lat lon point on earth distance in meters and bearing calculates destination.. returns Given a starting lat lon point on earth distance in meters and bearing calculates destination coordinates lat2 lon2. all params in degrees void destCoordsInDegrees double lat1 double lon1 double distanceMeters double bearing .. params in degrees void destCoordsInDegrees double lat1 double lon1 double distanceMeters double bearing double lat2 double lon2 If you can't use that take a look at the algorithms that it was derived from here and here and perhaps you can..
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