String function ( ) { return duration ; }
returns the overall track duration . concode_field_sep double vAverage concode_elem_sep int satMax concode_elem_sep String duration concode_elem_sep ArrayList<Trackpoint> trackpoints concode_elem_sep double distance concode_elem_sep double vMax concode_elem_sep int satMin concode_elem_sep String name concode_field_sep double getDistance concode_elem_sep double getVMax concode_elem_sep int getSatMin concode_elem_sep String getName concode_elem_sep void addTrackpoint concode_elem_sep int getSatMax concode_elem_sep double getVAverage concode_elem_sep ArrayList<Trackpoint> getTrackpoints