[feature request] Parsing of Google Takeout TimeLine records.json file about gpsbabel

[tsteven4]

Support for reading google takeout timelines was added in 1.9.0: https://www.gpsbabel.org/htmldoc-1.9.0/fmt_googletakeout.html.

gpx has an option to change the precision of elevation values, but requires a source code change to alter the precision of other values such as latitude and longitude: https://www.gpsbabel.org/htmldoc-1.9.0/fmt_gpx.html

[TrueArgus13]

Sorry, probably I was not clear enough. I'm talking not about "Semantic Location History" files which contains timeline objects only (actually - as we can see in TimeLine of Google web), but about raw waypoints, which contained in "Takeout\Location History (Timeline)\Records.json" file.

Example:
{
"locations": [{
"latitudeE7": 324564025,
"longitudeE7": 350534863,
"accuracy": 78,
"altitude": 140,
"verticalAccuracy": 16,
"source": "WIFI",
"deviceTag": 1664314150,
"platformType": "ANDROID",
"osLevel": 33,
"serverTimestamp": "2023-11-24T00:08:40.526Z",
"deviceTimestamp": "2023-11-24T00:08:40.071Z",
"batteryCharging": true,
"formFactor": "PHONE",
"timestamp": "2023-11-24T00:00:12.137Z"
}, {
"latitudeE7": 324564025,
"longitudeE7": 350534863,
"accuracy": 100,
"altitude": 140,
"verticalAccuracy": 23,
"source": "WIFI",
"deviceTag": 1664314150,
"platformType": "ANDROID",
"osLevel": 33,
"serverTimestamp": "2023-11-24T00:08:40.526Z",
"deviceTimestamp": "2023-11-24T00:08:40.071Z",
"batteryCharging": true,
"formFactor": "PHONE",
"timestamp": "2023-11-24T00:00:32.137Z"
}, {
....

[tsteven4]

We would entertain a pull request to support this.

A useful reference is https://locationhistoryformat.com/reference/

[postmaxin]

I implemented using the "Semantic Location History" folder first because it provides both waypoints and tracks, with trips being broken up intelligently, whereas "Records.json" appears to only provide one gigantic track, your all-time Google location tracking data. Just a track, no place names etc. We could include the Records.json data but there are a few challenges:

• My Records.json going from 2012 until last August is 1.2 gigabytes of JSON, and it's one huge "locations" array. We'd want to stream that efficiently so that we don't always have to load the whole thing at once
• We would probably want to correlate coordinates with the tracks in the "Semantic Location History" folder based on time. That way, we can keep waypoints etc and the data that Records.json provides is interleaved to produce a more detailed track

[TrueArgus13]

@postmaxin
Yes, sometime we need detailed tracks. For example, for geotaggign of photos taken by cameras.
Timestamp filtering is required. "Accuracy" filter is nice-to-have too 😁
For awhile I just parse it to unicsv files (file-per-date) by simple python script and then combine and convert by GPSBabel.