GPX track converter to post-process tracks as typically produced by GPS loggers
Concatenates multiple tracks preserving track segments, collecting waypoints.
Optionally sanitizes and smoothens trackpoints, and corrects elevation.
(Orthometric height = GPS ellipsoidal height - geoid height, see http://www.unavco.org/edu_outreach/tutorial/geoidcorr.html)
Produces statistics, including ascent/descent rates of climbing phases.
Usage: gpxconv infile(s) >outfile
Options can be set by changing values of the configuration variables below.
Reads from file(s) given as argument (or STDIN) and writes to STDOUT; prints any warnings and errors to STDERR