0

I am trying to create a height profile from the GPS positions I recorded last week while hiking. I used the App GPS Logger (now called GPS Offline Logger) on Android 2.3.5/Samsung GT-S5570 and managed to have it create .kml-Files, and from the second day on, also .gpx-Files. Now, the .gpx-Files contain a lot more information (like accuracy and height) than the .kml-Files (Which are just a <linestring> with a list of coodinates).

Is there any way to have the app create the .gpx File for the missing day or can I (maybe using ADB via Ubuntu) directly access the application's internal database and get the data from there? (If I click "show logs" and then long-click, "show details" twice, all needed information is displayed.)

0

Ok, so the program still produces a logfile called location_log.txt with all of the important data. I wrote a script in python to export it:

#!/bin/python
#
import codecs, os
__author__ = 'lukas'
path = "/path/to/the/folder/"
ins = codecs.open(path + "location_log.txt", "r", 'iso-8859-15')
array = []
for line in ins:
    linenew = ""
    count = 0
    for char in line:
        linenew += char
        count += 1
    array.append(linenew)
ins.close()

print """<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gpx   xmlns="http://www.topografix.com/GPX/1/1" creator="GPSbgLogger" version="1.1"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd" >  <trk>
    <name> GPSbgLogger DATE </name>
    <desc> GPX export file </desc>     <trkseg>"""


for line in array:
    if "20140228" in line: #OR ANY OTHER DATE YOURE INTERESTED IN
        if "   gps " in line:
            info = line
            otherstuff = info.split("   gps")[0]
            latlonheight = info.split("gps  ")[1]
            datetime = otherstuff.split(": ")[1]
            latlonheight = latlonheight.split(",")
            date = datetime.split(" ")[0]
            time = datetime.split(" ")[1]
            print "<trkpt  lat=\"%s\" lon=\"%s\" >"%(latlonheight[0], latlonheight[1])
            print "<ele>%s</ele>"%(latlonheight[2][:-1])
            print "<time>%sT%sZ</time>"%(date[:4] + '-' + date[4:6] + '-' + date[6:], time)
            print "<src>gps</src>\n</trkpt>"

print """
</trkseg>
  </trk>
</gpx>
"""

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.