问题
Possible Duplicate:
Adding a route to a MKMapView
So I am planning to draw multiple routes on the MKMapView. What are the easiest way to do this on iOS? I am not sure if the iPhone can calculate routes if I give them two points (lattitude, longitude). But then if the iPhone were able to calculate a route, then that route might not be the route I want to draw to go from point A to B.
Do I need multiple points along the route and draw it? As that seems really complex, as the number of points grows linearly with the growth of distance. Any suggestions?
回答1:
Try these posts.. It will help you i think
http://navarra.ca/?p=786
http://spitzkoff.com/craig/?p=108
This will automatically use Google Direction API and will fetch the points in between the locations i guess..
Anyhoo see this blog http://laurilarjo.wordpress.com/2010/10/23/using-google-directions-api-and-drawing-routes-in-iphone-mkmapview/
来源：https://stackoverflow.com/questions/5018826/drawing-routes-on-mkmapview