????init(coordinateString:String)?{
????????let?commaIndex?=?coordinateString.range(of:?",")!
????????let?firstElement?=?coordinateString.substring(to:?commaIndex.lowerBound)
????????let?secondElement?=?coordinateString.substring(from:?commaIndex.upperBound)
????????
????????latitude?=?Double(firstElement)!
????????longitude?=?Double(secondElement)!
????}