Description:

A tool for drawing networks overlaid on downloaded maps.
Gpsmap reads the netxml and gpsxml files, sanitizes the data.

GPSMap can download maps from several online sources (MapBlast, Tiger,
Terraserver, Earthamaps, and more) as well as use user-provided graphics,
provided you know the scale and center coordinates.

Main features:
* Travel path/track
* Approximate network circular range
* Approximate network center
* Convex hull of all network sample points
* Interpolated (weathermap-style) graphing of power and range
* Labeling of network centers
* Scatterplot of all detected packets
* Legend showing total sample networks, visible networks, colors,
power ranges, network center, etc.