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Edit laps

Former Member
Former Member

Hello,

I see this problem has been discussed many times in the past years. Is it that hard to be able to edit laps ? I see GPS is far from perfect but at least we can edit the laps and add the correct data. For example, today I did 3 x 3000m with 200m rest in between. This should equal to 9400m total. I can edit the total distance and set ti to 9400 instead of 9250 (what the watch shows) but laps remain the same. Instead I would like to set all laps to 3000 instead of 2940-2960) and then GC can sum them app automatically and get to the 9400 total distance.

PS : Laps have been done on the 1st lane of a track so it has 400m sharp (3000m equals 7.5 laps)

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  • You could export the activity to a TCX file, open it in text editor (or an HTML / XML editor), and edit the lap distances there. Just search for the tag <Lap and two lines below it, there is a tag <DistanceMeters> followed by the distance in meters.

    After the export, change the time of the original Activity slightly (you could also delete it, but it is safer to wait with it after the import), so that you can import the edited TCX file. Once imported, verify if everything is OK, and then delete the original.

    BTW, you can improve the GPS accuracy (if you did not do it already), by activating the mode GPS+Glonass and also the mode "Every second recording". Just be aware that it will drain the battery a little bit faster, though it should not be dramatic.

  • Former Member
    0 Former Member over 5 years ago in reply to trux

    Thanks. All worked fine with text editor but there are some differences to the uploaded file that I cannot understand. Although I clearly only modified the lap distance (total distance and average moving pace have been recalculated accordingly) the elevation gain/loss are completely different, average stride length and temperature columns disappeared completely on the new activity, total activity time is 1 second different (with very small time differences on some laps).

    Every second is all I use and GPS + Glonass was selected. Until now, at the track at least, GPS always read a distance smaller by around 50m @ 3000m wich considerably influences pace (by some 5secs/km).

  • Yes, at imported activities, GC activates automatically the Elevation Correction, which in some cases does not play well. For example if the denisity of the elevation data in the database is not high enough for your location, and in the same time if the barometric altimeter of the watch was not precisely calibrated prior the activity (best using the DEM method). At GPS aquired elevation, the accuracy of the elevation profile is even worse, and in the combination with the Elevation Correction, it may then give strange results, with a multitude of spikes.

    Turn the Elevation Correction off, on the right side of the Activity screen, just below the notes.

  • As for the other data, like temperature and stride - it is possible that they are not exported in the TCX file. You could export the activity in the FIT format (using the option original format in the export menu), but that is not a format you can easily edit in a text editor. You would need a specialized software for editing it. I did not check whether you could edit laps with it, but you can have a look at http://fitfilerepairtool.info/, or ask the member  who is an expert in FIT files (or perhaps they are indeed two developers under that alias). He (or they) would certainly recommend you the best and easiest way to edit the FIT file. The FIT file should contain all the original data (unlike the TCX file).

  • Former Member
    0 Former Member over 5 years ago in reply to trux

    Elevation Corrections is off so it only relies on the barometric sensor of the watch. As for average stride length, temperature or training effect, I think maybe it is just excluding them while exporting the TCX file. 

  • While is spot-on that you can download. edit, and upload a TCX file, and that is how I have done it for many indoor rides, I find now with my newer EPIX watch that I lose TONS of metrics when I delete the original TCX file.   The original ride has all kinds of information that doesn't come in the TCX download, and thus, you need to keep both the original zero-distance ride activity and the edited TCX activity - probably counts as two separate rides.  Still strikes me as hokey that you can edit the original ride's total distance, but you can't attribute parts of the distance to laps to then visualize the health metrics corresponding to what happened during each lap.

    On a related note, why doesn't the watch allow me to specify how many miles [kilometers] correspond to each press of the LAP button (for indoor cycling, specifically)?   I routinely LAP each 5 miles, which is what I then go back and edit into the TCX file.

  • I routinely LAP each 5 miles, which is what I then go back and edit into the TCX file.

    Why don't you set up the Auto Lap to 5 miles, on the watch?

  • It *IS* set that way, but being indoors and not getting info from any other sensors, the watch (the VENU 2 and now the EPIX) never records *any* distance, and I'm not sure how it ever would.  I press the LAP button each time the stationary bike records another 5 miles.

  • never records *any* distance, and I'm not sure how it ever would.

    One possibility is mounting a Garmin compatible speed sensor on the indoor bike (for example the Garmin Speed Sensor 2). Another possibility is wearing the watch on your ankle and using the activity Treadmill, changing it to Indoor Bike later in Garmin Connect. You can calibrate the distance of a Treadmill activity, so that you can then view the distance in real-time - it counts steps and multiplies them by the average stride length. In your case the revolutions and the circumstance of the wheel (if you have a fix gear indoor bike). Auto Laps will then work.