windows-phone-7 - how to track movements of a person in windows phone using GeoCoordinateWatcher?

Question

From a particular start point, I want to track a person's movement in terms of longitude, latitude and altitude using GeoCoordinateWatcher in windows phone 7

And when that person reaches to the same start point (after making circles or rectangles )I want to stop tracking.

Any idea how to implement this ?

Answer 1

GeoCoordinateWatcher API 有助于追踪位置。