MapKit 13 Draw a straight line on the map

Swift3.0 // // ViewController.swift // MapKit013 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit import MapKit class ViewController: UIViewController, MKMapViewDelegate { override func viewDidLoad() { super.viewDidLoad() // 経度緯度を設定. let myLan: CLLocationDegrees = 37.331741 let myLon: CLLocationDegrees = -122.030333 // 地図の中心の座標. let center: CLLocationCoordinate2D = CLLocationCoordinate2DMake(myLan, myLon) // mapViewを生成. let myMapView: MKMapView = MKMapView() myMapView.frame = self.view.frame myMapView.center = self.view.center myMapView.centerCoordinate = center myMapView.delegate = self // 縮尺を指定. let mySpan: MKCoordinateSpan = MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1) let myRegion: MKCoordinateRegion = MKCoordinateRegion(center: center, span: mySpan) // regionをmapViewに追加. myMapView.region = myRegion // viewにmapViewを追加. self.view.addSubview(myMapView) // 直線を引く座標を作成. let coordinate_1 = CLLocationCoordinate2D(latitude: 37.301741, longitude: -122.050333) let coordinate_2 = CLLocationCoordinate2D(latitude: 37.351951, longitude: -122.020314) let coordinate_3 = CLLocationCoordinate2D(latitude: 37.301741, longitude: -122.020314) let coordinate_4 = CLLocationCoordinate2D(latitude: 37.351951, longitude: -122.050333) // 座標を配列に格納. var coordinates_1 = [coordinate_1, coordinate_2] var coordinates_2 = [coordinate_3, coordinate_4] // polyline作成. let myPolyLine_1: MKPolyline = MKPolyline(coordinates: &coordinates_1, count: coordinates_1.count) let myPolyLine_2: MKPolyline = MKPolyline(coordinates: &coordinates_2, count: coordinates_2.count) // mapViewにcircleを追加. myMapView.add(myPolyLine_1) myMapView.add(myPolyLine_2) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } /* addOverlayした際に呼ばれるデリゲートメソッド. */ func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer { // rendererを生成. let myPolyLineRendere: MKPolylineRenderer = MKPolylineRenderer(overlay: overlay) // 線の太さを指定. myPolyLineRendere.lineWidth = 5 // 線の色を指定. myPolyLineRendere.strokeColor = UIColor.red return myPolyLineRendere } } Swift 2.3 // // ViewController.swift // MapKit013 // // Created by Misato Morino on 2016/08/15. // Copyright © 2016年 Misato Morino. All rights reserved. // import UIKit import MapKit class ViewController: UIViewController, MKMapViewDelegate { override func viewDidLoad() { super.viewDidLoad() // 経度緯度を設定. let myLan: CLLocationDegrees = 37.331741 let myLon: CLLocationDegrees = -122.030333 // 地図の中心の座標. let center: CLLocationCoordinate2D = CLLocationCoordinate2DMake(myLan, myLon) // mapViewを生成. let myMapView: MKMapView = MKMapView() myMapView.frame = self.view.frame myMapView.center = self.view.center myMapView.centerCoordinate = center myMapView.delegate = self // 縮尺を指定. let mySpan: MKCoordinateSpan = MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1) let myRegion: MKCoordinateRegion = MKCoordinateRegion(center: center, span: mySpan) // regionをmapViewに追加. myMapView.region = myRegion // viewにmapViewを追加. self.view.addSubview(myMapView) // 直線を引く座標を作成. let coordinate_1 = CLLocationCoordinate2D(latitude: 37.301741, longitude: -122.050333) let coordinate_2 = CLLocationCoordinate2D(latitude: 37.351951, longitude: -122.020314) let coordinate_3 = CLLocationCoordinate2D(latitude: 37.301741, longitude: -122.020314) let coordinate_4 = CLLocationCoordinate2D(latitude: 37.351951, longitude: -122.050333) // 座標を配列に格納. var coordinates_1 = [coordinate_1, coordinate_2] var coordinates_2 = [coordinate_3, coordinate_4] // polyline作成. let myPolyLine_1: MKPolyline = MKPolyline(coordinates: &coordinates_1, count: coordinates_1.count) let myPolyLine_2: MKPolyline = MKPolyline(coordinates: &coordinates_2, count: coordinates_2.count) // mapViewにcircleを追加. myMapView.addOverlay(myPolyLine_1) myMapView.addOverlay(myPolyLine_2) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } /* addOverlayした際に呼ばれるデリゲートメソッド. */ func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer { // rendererを生成. let myPolyLineRendere: MKPolylineRenderer = MKPolylineRenderer(overlay: overlay) // 線の太さを指定. myPolyLineRendere.lineWidth = 5 // 線の色を指定. myPolyLineRendere.strokeColor = UIColor.redColor() return myPolyLineRendere } } 2.3と3.0の差分 addOverlay から add に変更