Creating an array of CLLocationCoordinates - ios

Question

I'm attempting to get an array of latitude and longitude double values which I have stored in parse.com. I want to be able to convert these back into CLLocationCoordinates which I can then use to create MKPloylines in a custom table view.
However I'm not too sure how I can store an array of CLLocationCoordinates.
Here is my code:
_latitudeArray = [object objectForKey:#"latitude"];
[_parseLatitudeArray addObject:_latitudeArray];
_longitudeArray = [object objectForKey:#"longitude"];
[_parseLongitudeArray addObject:_longitudeArray];
for (int i=0; i < [_parseLatitudeArray count]; i++) {
_latitude = [self.parseLatitudeArray objectAtIndex:i];
_longitude = [self.parseLongitudeArray objectAtIndex:i];
CLLocationCoordinate2D coordinates [[_latitude count]];
for (int i = 0; i < [_latitude count]; i++) {
CLLocationCoordinate2D coordinate;
double latitude = [[_latitude objectAtIndex:i] doubleValue];
double longitude = [[_longitude objectAtIndex:i] doubleValue];
coordinate.latitude = latitude;
coordinate.longitude = longitude;
coordinates[i] = coordinate;
}
[_coordinatesArray addObject:coordinates];
}
NSLog(#"coordinates array = %#", _coordinatesArray);
At first I figured I would be able to do it using [_coordinatesArray addObject:coordinates]; but then realised that would not work!
I may be missing something really basic but any help would be appreciated.
Thanks
EDIT:
property Definitions:
#property NSMutableArray *latitudeArray;
#property NSMutableArray *parseLatitudeArray;
#property NSMutableArray *longitudeArray;
#property NSMutableArray *parseLongitudeArray;
#property NSMutableArray *coordinatesArray;
#property NSArray *latitude;
#property NSArray *longitude;
#property CLLocationCoordinate2D *coordinates;

Answer 1

Instead of creating a C-array of structs, wrap each struct into an object and add it to an NSMutableArray. So after you create coordinate, just:
[coordinatesArray addObject: [NSValue valueWithMKCoordinate:coordinate]];
And to get the value back out:
CLLocationCoordinate2D coordinate;
[coordinatesArray[i] getValue:&coordinate];
So, assuming that self.latitude and self.longitude are NSArrays of NSStrings:
//only property is now
#property (nonatomic, strong) NSArray * locations
-(void) loadCoordinatesFromParse {
NSDictionary * parseData;
//load parseData from Parse here
NSMutableArray * coordinates = [NSMutableArray array];
NSArray * latitudes = [parseData objectForKey:#"latitude"];
NSArray *longitudes = [parseData objectForKey:#"longitude"];
for (int i = 0; i < [latitudes count]; i++) {
double latitude = [latitudes[i] doubleValue];
double longitude = [longitudes[i] doubleValue];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(latitude, longitude);
[coordinates addObject: [NSValue valueWithMKCoordinate:coordinate]];
}
NSLog(#"coordinates array = %#", coordinates);
self.locations = [NSArray arrayWithArray: coordinates];
}