2014/10/15 下午 10:12:48

iphone Programming Glossary: polyline

iPhone: How to draw line between two points on MapKit?

http://stackoverflow.com/questions/10598322/iphone-how-to-draw-line-between-two-points-on-mapkit

Please help. iphone objective c ios ipad mapkit share improve this question Please See this tutorial to draw polyline or route in mkmapview 1 Draw route using mapkit 2 From versions above ios4.0 You can use MKOverlayPathView See Apple Docs.. point.x if point.y southWestPoint.y southWestPoint.y point.y pointArr idx point self.routeLine MKPolyline polylineWithPoints pointArr count pointStrings.count _routeRect MKMapRectMake southWestPoint.x southWestPoint.y northEastPoint.x..

Drawing route partially not getting required output in iPhone MapView

http://stackoverflow.com/questions/10835919/drawing-route-partially-not-getting-required-output-in-iphone-mapview

route partially not getting required output in iPhone MapView I am trying to draw route between two points using polyline . I got somewhat route but not correct and I think it will get confused at the turn . I am using google api for getting.. items objectAtIndex 0 valueForKey @ legs NSArray aary items objectAtIndex 0 valueForKey @ legs NSLog @ legs array wuth polyline @ aary objectAtIndex 0 valueForKey @ steps NSArray steps aary objectAtIndex 0 valueForKey @ steps NSLog @ steps @ steps.. @ steps NSArray steps aary objectAtIndex 0 valueForKey @ steps NSLog @ steps @ steps objectAtIndex 1 objectForKey @ polyline NSMutableString string NSMutableString alloc init for int i 0 i steps count i NSLog @ steps i value @ steps objectAtIndex..

Adding MKPolyline Overlay to MKMapView crashes application

http://stackoverflow.com/questions/18956149/adding-mkpolyline-overlay-to-mkmapview-crashes-application

on iOS6 but it is crashing on iOS 7 due to bad access when I add overlay to MKMapView.My code is as follows MKPolyline polyline MKPolyline alloc init polyline MKPolyline polylineWithCoordinates coordinates count numberOfSteps directionMap addOverlay.. 7 due to bad access when I add overlay to MKMapView.My code is as follows MKPolyline polyline MKPolyline alloc init polyline MKPolyline polylineWithCoordinates coordinates count numberOfSteps directionMap addOverlay polyline This is the crash log.. when I add overlay to MKMapView.My code is as follows MKPolyline polyline MKPolyline alloc init polyline MKPolyline polylineWithCoordinates coordinates count numberOfSteps directionMap addOverlay polyline This is the crash log lldb bt thread #51..

how to update MKPolyline / MKPolylineView?

http://stackoverflow.com/questions/3171572/how-to-update-mkpolyline-mkpolylineview

to update MKPolyline MKPolylineView I am trying to create a polyline MKPolyline overlay that updates periodically to simulate the movement of an object. I can achieve this by removing the old.. periodically to simulate the movement of an object. I can achieve this by removing the old overlay updating the polyline and adding the overlay again but this leads to flickering. For a point annotation MKPointAnnotation you can simply change.. it when it draws the MKPolylineView without removing the old and adding the newly created one. you could create a new polyline view with all the points including the new one and add it to the map but do not remove the older one. then once the new..

How to decode the Google Directions API polylines field into lat long points in objective-C for iPhone?

http://stackoverflow.com/questions/9217274/how-to-decode-the-google-directions-api-polylines-field-into-lat-long-points-in

to decode the Google Directions API polylines field into lat long points in objective C for iPhone I want to draw routes on a map corresponding to directions JSON which.. longitude from the steps field however this doesn't follow curvy roads very well. I think what I need is to decode the polyline information I found Googles instructions on how to encode polylines http code.google.com apis maps documentation utilities.. very well. I think what I need is to decode the polyline information I found Googles instructions on how to encode polylines http code.google.com apis maps documentation utilities polylinealgorithm.html I did find some code here for Android and..