gpxstats

#!/usr/bin/env python

import argparse
import logging
import sys
import traceback
from datetime import timedelta

import gpxlib


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("--speedup", help="", type=int, default=1)
    parser.add_argument("--maxspeed", help="", type=int, default=70)
    parser.add_argument("-v", "--verbose", help="", action="store_true")
    parser.add_argument("files", nargs="*")
    args = parser.parse_args()

    # go through GoPro extracted files
    for f in args.files:
        gpx_in, points = gpxlib.read(f)

        start_time = points[0].time
        prev_point = None

        for idx, point in enumerate(points):
            if not prev_point:
                prev_point = point
                continue

            dist = gpxlib.dist(prev_point, point)
            time_diff = point.time - prev_point.time
            time_diff_in_secs = time_diff.total_seconds()
            time_diff_in_secs_sped_up = time_diff_in_secs * args.speedup
            actual_time = start_time + timedelta(
                0, (point.time - start_time).total_seconds() * args.speedup
            )
            if time_diff_in_secs_sped_up:
                speed = dist / time_diff_in_secs_sped_up * 3600
            else:
                speed = 0

            print(
                "%05d %s (%10.5f, %10.5f) -> (%10.5f, %10.5f): %4dm in %5.3fs @ %05.2f km/h"
                % (
                    idx,
                    actual_time.strftime("%m/%d/%Y %H:%M:%S"),
                    prev_point.latitude,
                    prev_point.longitude,
                    point.latitude,
                    point.longitude,
                    dist * 1000,
                    time_diff_in_secs_sped_up,
                    speed,
                )
            )
            prev_point = point


if __name__ == "__main__":
    main()