2014/10/15 下午 10:10:07

iphone Programming Glossary: horizontalaccuracy

Export SQLite data to Excel in iOS programmatically

http://stackoverflow.com/questions/11132900/export-sqlite-data-to-excel-in-ios-programmatically

error d from header write result BOOL errorLogged NO NSString sqlStatement @ select timestamp latitude longitude horizontalAccuracy from my_sqlite_table Setup the SQL Statement and compile it for faster access sqlite3_stmt compiledStatement if sqlite3_prepare_v2..

Why is my CLLocation speed so inaccurate?

http://stackoverflow.com/questions/1180050/why-is-my-cllocation-speed-so-inaccurate

oldLocation if newLocation.timestamp oldLocation.timestamp newLocation.verticalAccuracy 0.0f GPS is active newLocation.horizontalAccuracy 500.0f GPS is active newLocation.horizontalAccuracy kCLLocationAccuracyHundredMeters good quality GPS signal newLocation.speed.. newLocation.verticalAccuracy 0.0f GPS is active newLocation.horizontalAccuracy 500.0f GPS is active newLocation.horizontalAccuracy kCLLocationAccuracyHundredMeters good quality GPS signal newLocation.speed 1.0f enough movment for accurate speed and course.. high accuracy. Second only use meaningful values for the location coordinates you should discard values with negative horizontalAccuracy. This is what I am referring to when speaking of good locations. Third you can compute the distance by yourself compute..

Finding GPS signal strength

http://stackoverflow.com/questions/4632940/finding-gps-signal-strength

for anyway. You absolutely can check the accuracy of the locations returned by CoreLocation. Look at CLLocation it has horizontalAccuracy and verticalAccuracy properties which indicate how accurate the device believes that location fix to be. share improve..

What do horizontalAccuracy and verticalAccuracy of a CLLocation refer to?

http://stackoverflow.com/questions/7402503/what-do-horizontalaccuracy-and-verticalaccuracy-of-a-cllocation-refer-to

do horizontalAccuracy and verticalAccuracy of a CLLocation refer to I've been working on a location based app recently and am noticing some strange.. I've been working on a location based app recently and am noticing some strange values for CLLocation. I often get a horizontalAccuracy of 1414m and a verticalAccuracy of 1. Any clue what this indicates As far as I can tell these points are often very accurate... As far as I can tell these points are often very accurate. What is the difference between verticalAccuracy and horizontalAccuracy iphone ios core location cllocation share improve this question The 1 for verticalAccuracy indicates that the altitude..

Is it possible to use only region monitoring + GSM and to get not more than 5 km horizontalAccuracy?

http://stackoverflow.com/questions/8034201/is-it-possible-to-use-only-region-monitoring-gsm-and-to-get-not-more-than-5-km

it possible to use only region monitoring GSM and to get not more than 5 km horizontalAccuracy I would like to share the info of my performed testing scenarios and to ask you to share your experience with region monitoring... functionality I have enabled significant monitoring. After that I have received several didUpdateToLocation with horizontalAccuracy of ~8.5 km Wow that hurts because all I want to do is to have a functionality where a user would be notified that his desired.. a little bit more accurate 50m. In previous scenarios I was getting unstable accuracy also. Sometimes there were 4 km horizontalAccuracy sometimes less. But the main question that is if we want to preserve the battery Apple teaches us that in docs then can..