Imports github.com/adrianmo/go-nmea github.com/martinlindhe/unit github.com/paulmach/orb github.com/paulmach/orb/geo github.com/twpayne/go-gpx gonum.org/v1/plot gonum.org/v1/plot/plotter gonum.org/v1/plot/vg gonum.org/v1/plot/vg/draw gonum.org/v1/plot/vg/vgimg Standard library imports bufio io os strconv time