The ideal and fastest solution (with accuracy), is to:
- Create a Path via Google Earth
- Save the path to an .kml file (on your desktop)
- Open the .kml and copy all the geolocation points (notably the long, lat, elvations)
- Paste it in TextMate or similar
- Use this RegEx Find & Replace:
Find:
(.*?),(.*?),0
(there is a space at the end of this regex)
Replace:
- Add to the begining and to the end, and save it as a .gpx
- Use that gpx file in Xcode after running the App in debug: "Simulate Location" add the GPX, then select it again to start the simulation of the path you made.