GPX Versions 1.1 vs 1.2 for Garmin Visually Explained
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@steve-jarrell I lead rides regularly. We're all on MRA so riders can load there route however they like on all the different Garmins that we have. So long as the track is available (which it is) and visible, everyone can see where we are going. None of this "my satnav says down there" anymore. The track don't lie.
If I'm leading, I'm keen to have the best and quickest option available. 1.2 routes load really quickly and don't make their own minds up.
Another con I had found when planning away from home is that plotting a shaping point exactly on the road on either a phone or tablet can be tricky and with GPX1.1 there must be many of them to pin your route. This can often lead to your track being sent over correctly but the route not calculating on the Zumo. The answer is to convert the track to a route but with all the pitfalls. 1.2 seems to calculate through Tread quite easily.
There's probably more to find out but so far, so reasonable.
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@carl-lee Whether it's 1.1 or 1.2 if you realize their limitations AND you supplement them with the track (that never changes...) you're in good shape.
With 1.2 it is FAR easier to initially create a route in MRA that goes exactly where you intend for it to go on the Garmin. There's absolutely no question about that.
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Ok, I've been having another play.
I loaded my local GPX1.2 test route through Tread and with it syncing all the way. I then started a simulation and let it run a little. After a while, I edited the route by adding a couple of shaping points. I was issued with a warning that "editing will discard the route settings and calculate a standard route". Nevertheless, I did it to see what occurred.
This:
It both did and did not destroy the original route. Yes, it went by my new shaping point diversions and then headed for the next via point, discarding the rest of the planned convoluted route to get me there. But - both the original track (obviously) and the original route overlaying it are still there on the XT2 map screen. What I was unable to do on the simulation was to ignore the new route to the via point and rejoin my original just by riding to it. However, what I could do was to stop the route and restart with CEP. Success, the route was still there and it navigated me back to it and onto the rest of my original MRA planned route.I did try adding another shaping point after my diversion ones, this time back onto the original route but it still wanted to route around and back after it to take me to the next via point. Just a thought but it still gets you onto the route where you can restart with CEP.
I had to know as even though a quick replan with MRA on my iPhone would do the trick easily, there may be that time with no phone signal so it won't open. All worst-case scenario stuff that I've not needed before and it does prove that a replan on the Garmin stops your planned route but it's still there. Schrodinger's route!
@Carl-Lee You are a real glutton for punishment!
I assume that it recalculated the entire route as well beyond the next via point. That's the behavior that I've notice while doing my testing. -
@Mzokk Excellent points. In an ideal world everyone on a group ride would have the exact same GPS with the current maps and most current sw version. Since that's never going to be the case the lowest common denominator is the track file and that's what I see being distributed most often for these rides.
If you're leading a ride I can see where your 1.1 gpx file route combined with the track file would be a better option than a 1.2 file. I hadn't thought of that before.
Thanks!!
@Mzokk Excellent points. In an ideal world everyone on a group ride would have the exact same GPS with the current maps and most current sw version. Since that's never going to be the case the lowest common denominator is the track file and that's what I see being distributed most often for these rides.
If you're leading a ride I can see where your 1.1 gpx file route combined with the track file would be a better option than a 1.2 file. I hadn't thought of that before.
Thanks!!
Keeping this lot to a time schedule can be a bit of a challenge, punctures, pees stops long lunches etc>
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@Mzokk Excellent points. In an ideal world everyone on a group ride would have the exact same GPS with the current maps and most current sw version. Since that's never going to be the case the lowest common denominator is the track file and that's what I see being distributed most often for these rides.
If you're leading a ride I can see where your 1.1 gpx file route combined with the track file would be a better option than a 1.2 file. I hadn't thought of that before.
Thanks!!
Keeping this lot to a time schedule can be a bit of a challenge, punctures, pees stops long lunches etc>
@Mzokk As you get older you'll have to factor in long pee stops as well as long lunches!
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