distance from CurrentLocation to data from Plist File - iphone

Question

I have a long list of places with Latitudes and Longitudes in a plist. I want to show a tableView of the places only within X distance of the user's current location. Is there a way to create objects from the lats & longs in the plist file so I can use 'distanceFromLocation'? More importantly, how do I get the array to only display the names with a distance from current less than X? I'm assuming I would need to make a series of objects from lats & longs in the plist, then do an objects in array if objects distanceFrom is less than X, correct?
Please help.
Here's where I am now: I get an error on the double clubLatitude line
- (void)viewDidLoad {
[super viewDidLoad];
NSArray *clubArray = [NSArray arrayWithObjects:[self danceClubLocation], nil];
self.tableData = clubArray;
}
-(CLLocation *)danceClubLocation
{
NSString *plistPath = [[NSBundle mainBundle] pathForResource:#"Data" ofType:#"plist"];
NSArray *array = [NSArray arrayWithContentsOfFile:plistPath];
NSEnumerator *e = [array objectEnumerator];
id object;
while ((object = [e nextObject])) {
double clubLatitude = [[array valueForKey:#"Latitude"] doubleValue];
double clubLongitude = [[array valueForKey:#"Longitude"] doubleValue];
CLLocation *clubLocation = [[CLLocation alloc] initWithLatitude:clubLatitude longitude:clubLongitude];
if ([clubLocation distanceFromLocation:myLocation]<=50) {
return clubLocation;
}
else return nil;
}
return nil;
}
-(CLLocation *)myLocation
{
CLLocation *location = [locationManager location];
CLLocationCoordinate2D coordinate = [location coordinate];
NSNumber *myLatitude = [NSNumber numberWithDouble:coordinate.latitude];
NSNumber *myLongitude = [NSNumber numberWithDouble:coordinate.longitude];
double myLatitudeD = [myLatitude doubleValue];
double myLongitudeD = [myLongitude doubleValue];
myLocation = [[CLLocation alloc]initWithLatitude:myLatitudeD longitude:myLongitudeD];
return myLocation;
}

Answer 1

As #DavidNeiss said, you have to iterate over the list (an NSArray with the plist as source) and it would be something like this:
NSString *plistPath = [[NSBundle mainBundle] pathForResource:#"latlong" ofType:#"plist"];
NSArray *array = [NSArray arrayWithContentsOfFile:plistPath];
NSEnumerator *e = [array objectEnumerator];
id object;
while (object = [e nextObject]) {
// do something with object
}
Then you can do what you want (removing what's far from the user or whatever).

Answer 2

Read in your plist, iterate over it to pull out ones within X distance and populate any array with them that will be the data source for your table view?