.bin File - Change flight location

Peterarnold · May 27, 2023, 7:56pm

Due privacy issues is it practical to change the gps flight location in a .bin or .log file?
If so which lines need changing and what format is the location stored in? HEX?
My file editor doesn’t list a .bin file by line. Anyone got one that does?
Any help appreciated!

Eosbandi · May 27, 2023, 8:22pm

Press ctr-f and look for a buttom called Anon LOG. It will change the gps path on your log file by a random offset.

Peterarnold · May 27, 2023, 11:10pm

Thanks for the reply but it converts it to a .log file and I would like to keep it as a .bin.

Yuri_Rage · May 27, 2023, 11:30pm

That’s the only method exposed for users at the moment. If you want something else, you’ll have to write the code.

Here’s where most of the heavy lifting takes place in the existing method:

github.com

ArduPilot/MissionPlanner/blob/master/ExtLibs/Utilities/Privacy.cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using MissionPlanner.Comms;

namespace MissionPlanner.Utilities
{
    public class Privacy
    {
        public static void anonymise(string logfile, string outputfile)
        {
            if (!File.Exists(logfile))
                return;

            var rand = new Random();

            var random = (rand.NextDouble() * 10);

This file has been truncated. show original

Peterarnold · May 27, 2023, 11:37pm

Here’s where most of the heavy lifting takes place in the existing method
Thanks Yuri_Rage but unfortunately that’s a bit above my payscale.

dkemxr · May 28, 2023, 1:20am

No can do from a mouse click like MP does. If for whatever reason you must have a .bin log w/o GPS position them uncheck GPS in the Log_bitmask.

Eosbandi · May 28, 2023, 6:29am

Log is identical to bin, just converted to human readable format.

Peterarnold · May 28, 2023, 7:59am

Thanks for pointing that out!
The common practice is to post a .bin file on the forum so if you want to hide your location post a Anon LOG converted .log file instead??

dkemxr · May 28, 2023, 2:16pm

That is also common practice. Some will complain depending on what tool they are using to view the logs.

Peterarnold · May 28, 2023, 11:22pm

The only downside seems that you can’t doo FFT plots with an Anon LOG file??

dkemxr · May 28, 2023, 11:59pm

Right. So you are on your own configuring that.
Or just disable GPS logging. The choices you have are clear.