Which type of coordinate system does the setPosition API required?

[forunix]

Which type of coordinate system does the setPosition required? Is it WGS-84? or some others? Thanks!

[buelowp]

OK, so it's my understanding (I'm not actually all that tied to this, so it's just my understanding, no science here) that WGS84 and GPS LAT and LON are roughly the same. In that, GPS uses WGS84 as it's initial frame of reference. If that's wrong. so be it. If that answer doesn't make sense, I didn't write the original implementation of the algorithm, which happened much later than WGS84 anyway.

That said, use the current accepted GPS LAT and LON for any given location, and you'll be VERY close to correct no matter what. I'm currently within seconds based on observation where I live using the coordinates from google maps for my location. This library isn't meant to be perfect, but rather, just to get you pretty close.