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I’m working on an Android app that uses Geopoints and I want to determinate a Geopoint from another Geopoint, a distance (in any format) and a polar angle. For example, I want to get coordinates of a place 100 meters in the North-North-East (22,5 degres) of my location got by the GPS in my phone.
The only method I’ve found is Location.distanceBetween(...).
Take a look at great-circle formulas: http://en.wikipedia.org/wiki/Great-circle_distance
This should give You some hints on how to calculate the distances.
For a point in a given distance and heading, check http://williams.best.vwh.net/avform.htm#LL
Those formulas look quite complicated, but are easy to implement 😉