TracePath

References

Google Maps

• https://developers.google.com/maps/documentation/ios/start
• https://github.com/Cotard/GoogleMapsWeather
• get current location: http://stackoverflow.com/a/20994202/288089

GPS

Coordinates of Shanghai in decimal degrees

Latitude: 31.2222200
Longitude: 121.4580600

My Home: 31"12'26, 121"32'40' / 31.207222, 121.544444

Convert: http://andrew.hedges.name/experiments/convert_lat_long/

Location Simulation

http://stackoverflow.com/a/8545163/288089

Keeping track of moving things

http://www.slideshare.net/ggeoffre/keeping-track-of-moving-things-mapkit-and-corelocation-in-depth src: https://github.com/ggeoffre/KeepingTrack