Adding annotation to an array

func annotations() -> [JPSThumbnailAnnotation] {
    var annotations: [JPSThumbnailAnnotation] = []
    let pointData = NSData(contentsOfFile: NSBundle.mainBundle().pathForResource("1000", ofType: "geojson")!)
    let points = NSJSONSerialization.JSONObjectWithData(pointData!,
        options: nil,
        error: nil) as! NSDictionary
    for point in points["glimps"] as! NSArray {
        let a = JPSThumbnail()
        a.image = UIImage(named: "empire.jpg")
        a.title = "Empire State Building"
        a.subtitle = "NYC Landmark"
        let lat = (point as! NSDictionary)["latitude"] as! CLLocationDegrees
        let lon = (point as! NSDictionary)["longitude"] as! CLLocationDegrees

        a.coordinate = CLLocationCoordinate2DMake(lat, lon)
        a.disclosureBlock = { println("selected Empire") }
        let a1: JPSThumbnailAnnotation = JPSThumbnailAnnotation()

        annotations.append(a1)
    }
    return annotations
}

This is my code the annotations are appearing on top of each other, with no thumbnail for some reason, how can I fix this in swift?

Start with the annotations() entry point and the JPSThumbnail and JPSThumbnailAnnotation usage shown in the issue. Reproduce the Swift example and inspect how the annotation objects receive their coordinates and thumbnail data. Done means the annotations no longer overlap unexpectedly and display their thumbnails.