Problem with timestamps in GPX or KMZ logs ? (APM2 + ArduPlane 2.28 + MP 1.1.22)

[Colin Bouriquet]

Hi,

I'm opening the KMZ converted logfiles in google earth, i see the altitude information correctly on the tracks, however there seems to be no time information (even if i do see timestamps in the KML file when i open it with textedit)...

When i show elevation profile i only see the red curve (which displays elevation/distance) like this :

and not the blue one which shows time and speed information, like this (NMEA file from a GPS datalogger) :

Same problem appears : when opening or converting the GPX files, when converting files downloaded from the APM2 internal memory.

The issue is that without this data it's impossible to geotag pictures taken from the plane.

Would it be possible to improve this ?

Thanks.

[Michael Oborne]

can you please post your log, and what version software where you running?

[Colin Bouriquet]

Thanks Michael, I have Arduplane 2.28 installed on my APM2 board, in the moment of the test i was using Mission Planner 1.1.22 i've updated since to 1.1.23 i will make a new log tomorrow with the latest version of software.

[Colin Bouriquet]

Hi Michael,

This is a log i recorded today (from the APM2 internal memory)...

I think i've found part of the problem, at least for the GPX file, it uses commas instead of dots. When i do a search and replace of all commas by dots, it works i see the time information in GE. I haven't looked already but the problem may be similar with the KML file.

Another thing, there is no <speed> tag in GPX file either, is it a logging limitation ? Isn't the speed logged somewhere ?

Thanks.

[Colin Bouriquet]

Anything new on this topic ? Thanks.

[Michael Oborne]

Speed can be derived from the input data. distance between fix's over time.

 

in the next version i will fix the comma issue.