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"Android is a software stack for mobile devices that includes an operating system, middleware, and key applications," Wikipedia.
6
votes
Accepted
Distance calculation : Integrating incremental gps data
This is a fascinating problem where a little analysis can be most revealing.
First consider the effects of elevation. When a mapped unit distance is traversed, and the elevation changes by an amount …
1
vote
How to find Bounding Box given 4 Lat/Long and Bearing?
The question makes little or no sense except in projected coordinates, because a "bounding box" and even a constant bearing have ambiguous meanings on a spheroid. In the projected plane, all you have …
55
votes
Accepted
Generating random locations nearby?
This is tricky for two reasons: first, limiting the points to a circle instead of a square; second, accounting for distortions in the distance calculations.
Many GISes include capabilities that autom …
6
votes
Accepted
How do I group near points with GPS positions?
One quick and dirty way uses a recursive spherical subdivision. Beginning with a triangulation of the earth's surface, recursively split each triangle from a vertex across to the middle of its longes …