Spirit System :: View topic - Geolink reading .dl4 saved flight data

As I'm starting some acrobatic flight I 'd like to examin the trajectories followed by my heli and recorded by Geolink.
To this aim I have two requests/wishes:
1) being able to read the .dl4 file to get the position (Lat, Long, Height) and time (I didn't find any software for doing that)
2) as the data are recorded once a second and this is too slow for acro, it would be necessary to switch to say 0.1sec sampling time. I understand that woud fill the
on-board memory quickly but recoding 5 minutes instead of one hour of flights would be more than enough.
At least 1) should be easy as the log viewer already does read and display 2D trajectories (while I would do 3D plots)
Many thanks

Author:	SkipDaDip [ Sat 29. Feb 2020 15:40:07 ]
Post subject:	Geolink reading .dl4 saved flight data
As I'm starting some acrobatic flight I 'd like to examin the trajectories followed by my heli and recorded by Geolink. To this aim I have two requests/wishes: 1) being able to read the .dl4 file to get the position (Lat, Long, Height) and time (I didn't find any software for doing that) 2) as the data are recorded once a second and this is too slow for acro, it would be necessary to switch to say 0.1sec sampling time. I understand that woud fill the on-board memory quickly but recoding 5 minutes instead of one hour of flights would be more than enough. At least 1) should be easy as the log viewer already does read and display 2D trajectories (while I would do 3D plots) Many thanks

Author:	SkipDaDip [ Sun 07. Jun 2020 12:22:15 ]
Post subject:	Re: Geolink reading .dl4 saved flight data
SkipDaDip wrote: As I'm starting some acrobatic flight I 'd like to examin the trajectories followed by my heli and recorded by Geolink. To this aim I have two requests/wishes: 1) being able to read the .dl4 file to get the position (Lat, Long, Height) and time (I didn't find any software for doing that) 2) as the data are recorded once a second and this is too slow for acro, it would be necessary to switch to say 0.1sec sampling time. I understand that woud fill the on-board memory quickly but recoding 5 minutes instead of one hour of flights would be more than enough. At least 1) should be easy as the log viewer already does read and display 2D trajectories (while I would do 3D plots) Many thanks For point 1) as I have some software knowledge, I could try and write the code for reading the .dl4 files by myself, but I need the specification of how the files are written, order and length of fields etc. Thomas, could you provide the info or, at least, give a reference where I can find it?Thanks in advance.

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