iphone - CLLocationManager error margin -

iphone - CLLocationManager error margin -

im developing location based application football game stadium.

i must pre define several locations on map user , guide user location.

do know error margin in cllocationmanager current utilize location

it depends on accuracy constant set. docs:

kcllocationaccuracybestfornavigation

use highest possible accuracy , combine additional sensor data. level of accuracy intended utilize in navigation applications require precise position info @ times , intended used while device plugged in. available in os x v10.7 , later. declared in cllocation.h.

kcllocationaccuracybest

use highest-level of accuracy. available in os x v10.6 , later. declared in cllocation.h.

kcllocationaccuracynearesttenmeters

accurate within 10 meters of desired target. available in os x v10.6 , later. declared in cllocation.h.

kcllocationaccuracyhundredmeters

accurate within 1 hundred meters. available in os x v10.6 , later. declared in cllocation.h.

kcllocationaccuracykilometer

accurate nearest kilometer. available in os x v10.6 , later. declared in cllocation.h.

kcllocationaccuracythreekilometers

accurate nearest 3 kilometers. available in os x v10.6 , later. declared in cllocation.h.

update:

here bit more info accuracity

iphone ios objective-c gps cllocationmanager