Re: iPhone CLLocation Accuracy?
Re: iPhone CLLocation Accuracy?
- Subject: Re: iPhone CLLocation Accuracy?
- From: Shawn Erickson <email@hidden>
- Date: Wed, 11 Nov 2009 15:27:42 -0800
On Wed, Nov 11, 2009 at 1:42 PM, Chunk 1978 <email@hidden> wrote:
> how accurate is CLLocation's kCLLocationAccuracyBest? about a meter
> or more? or is it hyper accurate as in centimeters? anyone know?
The "best" constant will give you the best position fix possible for
that device you are running on in the environment it is in (overtime
it may get more accurate). This may or may not include GPS. If GPS is
available you still don't know how many satellites are available and
their signal to noise ratio, etc. You can ask CLLocation for its
current horizontal and vertical accuracy.
You really can't assume how accurate it will be, just how accurate it
currently is.
If you want a range as a ballpark, assume between a kilometer to several meters.
-Shawn
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