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2014/10/15 ¤U¤È 10:05:08

iphone Programming Glossary: cllocationdistance

Trouble with CLLocation method distanceFromLocation: Inaccurate results

http://stackoverflow.com/questions/10184802/trouble-with-cllocation-method-distancefromlocation-inaccurate-results

need a valid oldLocation to be able to compute distance if oldLocation nil oldLocation.horizontalAccuracy 0 return CLLocationDistance distance newLocation distanceFromLocation oldLocation NSLog @ 6.6f 6.6f to 6.6f 6.6f for 2.0fm accuracy 2.0fm oldLocation.coordinate.latitude.. to compute distance if self.oldLocation nil self.oldLocation.horizontalAccuracy 0 self.oldLocation newLocation return CLLocationDistance distance newLocation distanceFromLocation self.oldLocation NSLog @ 6.6f 6.6f to 6.6f 6.6f for 2.0fm accuracy 2.0fm self.oldLocation.coordinate.latitude..

CLLocation speed

http://stackoverflow.com/questions/1391589/cllocation-speed

provided by the phone from newLocation double gpsSpeed newLocation.speed alternative manual method if oldLocation nil CLLocationDistance distanceChange newLocation getDistanceFrom oldLocation NSTimeInterval sinceLastUpdate newLocation.timestamp timeIntervalSinceDate..

Sorting an array of doubles or CLLocationDistance values on the iPhone

http://stackoverflow.com/questions/1422840/sorting-an-array-of-doubles-or-cllocationdistance-values-on-the-iphone

an array of doubles or CLLocationDistance values on the iPhone I'm trying to sort a list of CLLocationDistance values by closest distance ascending order . I first.. an array of doubles or CLLocationDistance values on the iPhone I'm trying to sort a list of CLLocationDistance values by closest distance ascending order . I first converted the values to NSString objects so that I could use the following..

how to calculate two coordinates distance in objective c?

http://stackoverflow.com/questions/1980898/how-to-calculate-two-coordinates-distance-in-objective-c

CLLocationCoordinate2D to CLLocation

http://stackoverflow.com/questions/2318547/cllocationcoordinate2d-to-cllocation

an init method named id initWithLatitude CLLocationDegrees latitude longitude CLLocationDegrees longitude . Then use CLLocationDistance getDistanceFrom const CLLocation location to get the distance between two CLLocation objects. share improve this answer..

distanceFromLocation - Calculate distance between two points

http://stackoverflow.com/questions/3905896/distancefromlocation-calculate-distance-between-two-points

newCoordinate newLocation coordinate CLLocationCoordinate2D oldCoordinate oldLocation coordinate CLLocationDistance kilometers newCoordinate distanceFromLocation oldCoordinate 1000 Error ocurring here. CLLocationDistance meters newCoordinate.. coordinate CLLocationDistance kilometers newCoordinate distanceFromLocation oldCoordinate 1000 Error ocurring here. CLLocationDistance meters newCoordinate distanceFromLocation oldCoordinate Error ocurring here. I'm getting the following error on the last.. searching Google but I cannot find anything. iphone core location share improve this question Try this instead CLLocationDistance meters newLocation distanceFromLocation oldLocation The method you're trying to use is a method on a CLLocation object ..

MKMapView moving Annotations Automatically - animate them?

http://stackoverflow.com/questions/4113085/mkmapview-moving-annotations-automatically-animate-them

doubleValue double differencetime exampleTime double speedmoving double distanceTravelled speedmoving differencetime CLLocationDistance movedDistance distanceTravelled double radiansHeaded DEG2RAD self.heading doubleValue CLLocation newLocation passedLocation..

Zoom to fit region for all annotations - ending up zooming in between annotations

http://stackoverflow.com/questions/4523604/zoom-to-fit-region-for-all-annotations-ending-up-zooming-in-between-annotation

CLLocation locNorthEast CLLocation alloc initWithLatitude NorthEast.latitude longitude NorthEast.longitude CLLocationDistance meter locSouthWest distanceFromLocation locNorthEast MKCoordinateRegion region region.span.latitudeDelta meter 111319.5..

GPS coordinates in degrees to calculate distances

http://stackoverflow.com/questions/6994101/gps-coordinates-in-degrees-to-calculate-distances

12.123456 longitude 12.123456 CLLocation locationB CLLocation alloc initWithLatitude 21.654321 longitude 21.654321 CLLocationDistance distanceInMeters locationA distanceFromLocation locationB CLLocation is aka double locationA release locationB release It's..

iphone — convert MKMapPoint distances to meters

http://stackoverflow.com/questions/7395925/iphone-convert-mkmappoint-distances-to-meters

mapView.visibleMapRect.size.width mapView.visibleMapRect.origin.y mapView.visibleMapRect.size.height CLLocationDistance hDist MKMetersBetweenMapPoints mpTopLeft mpTopRight CLLocationDistance vDist MKMetersBetweenMapPoints mpTopRight mpBottomRight.. mapView.visibleMapRect.size.height CLLocationDistance hDist MKMetersBetweenMapPoints mpTopLeft mpTopRight CLLocationDistance vDist MKMetersBetweenMapPoints mpTopRight mpBottomRight double vmrArea hDist vDist The documentation states that the function..

Calculate distance between two locations using google map in iphone

http://stackoverflow.com/questions/7551610/calculate-distance-between-two-locations-using-google-map-in-iphone

Distance to a location while user is in motion

http://stackoverflow.com/questions/8247820/distance-to-a-location-while-user-is-in-motion

CLLocationManager manager didUpdateToLocation CLLocation newLocation fromLocation CLLocation oldLocation CLLocationDistance meters newLocation distanceFromLocation fixedPoint self.distanceLabel.text NSString alloc initWithFormat @ Distance .1f..

iPhone: Sorting based on location

http://stackoverflow.com/questions/9308020/iphone-sorting-based-on-location

myLocation CLLocation alloc initWithLatitude locationCoordinates.latitude longitude locationCoordinates.longitude CLLocationDistance distanceA participantALocation distanceFromLocation myLocation CLLocationDistance distanceB participantBLocation distanceFromLocation.. locationCoordinates.longitude CLLocationDistance distanceA participantALocation distanceFromLocation myLocation CLLocationDistance distanceB participantBLocation distanceFromLocation myLocation if distanceA distanceB return NSOrderedAscending else if.. this question NSArray orderedUsers users sortedArrayUsingComparator ^ id a id b User userA User a User userB User b CLLocationDistance distanceA userA.location getDistanceFromLocation myLocation CLLocationDistance distanceB userB.location getDistanceFromLocation..