How to export GPX files to Zumo XT without recalculation
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@HABVEN-aka-MrMRA not 50 viapoints?


@Travellexxie 50 points is not applied to XT!
Garmin zūmo XT (Original) Limits
• Via Points Limit: 29 intermediate via points max (31 total via points including Start and End). Going over this forces an automatic route split.
• Shaping Points Limit: Up to 125 unannounced shaping points allowed between each via point.
• Total Combined Capacity: Because of the 125-shaping-point gap allowance between each of the 31 total via points, a single intact route file can mathematically hold up to ~3,750 points total, successfully ignoring the confusing "50-point cap" written in some of Garmin's general documentation.
BUT
DO NOT use a total if too many points in total as this slows down the XT‘s calculation.Garmin zūmo XT2 & XT3 Limits
The newer generations completely dropped the restriction of a "points between vias" architecture in favor of a massive flat pool:
• Via Points Limit: A flat maximum of 100 via points total per route.
• Shaping Points Limit: A flat maximum of 1,000 shaping points total per route.
• Total Combined Capacity: The routing engine allows up to 1,100 total combined routing points on a single calculated trip.Why did Garmin reduce the total capacity of points from XT to XT 2 and XT3?
While it looks like a downgrade on paper, Garmin changed this to fix a massive performance flaw.
On the original zūmo XT, if you actually tried to load a complex route containing thousands of points, the device's processor would choke. It would take several minutes to calculate, lag heavily when you went off-route, or completely crash mid-ride. The "125 points between vias" rule was a legacy structural setting in Garmin's code, but the hardware couldn't smoothly run a single route packed to that limit.
By switching the XT2 and XT3 to a strict 1,100 total point ceiling, Garmin ensured the routing engine always has enough computational headroom to calculate instantly, render complex maps smoothly, and recalculate on the fly without lagging. -
@Travellexxie 50 points is not applied to XT!
Garmin zūmo XT (Original) Limits
• Via Points Limit: 29 intermediate via points max (31 total via points including Start and End). Going over this forces an automatic route split.
• Shaping Points Limit: Up to 125 unannounced shaping points allowed between each via point.
• Total Combined Capacity: Because of the 125-shaping-point gap allowance between each of the 31 total via points, a single intact route file can mathematically hold up to ~3,750 points total, successfully ignoring the confusing "50-point cap" written in some of Garmin's general documentation.
BUT
DO NOT use a total if too many points in total as this slows down the XT‘s calculation.Garmin zūmo XT2 & XT3 Limits
The newer generations completely dropped the restriction of a "points between vias" architecture in favor of a massive flat pool:
• Via Points Limit: A flat maximum of 100 via points total per route.
• Shaping Points Limit: A flat maximum of 1,000 shaping points total per route.
• Total Combined Capacity: The routing engine allows up to 1,100 total combined routing points on a single calculated trip.Why did Garmin reduce the total capacity of points from XT to XT 2 and XT3?
While it looks like a downgrade on paper, Garmin changed this to fix a massive performance flaw.
On the original zūmo XT, if you actually tried to load a complex route containing thousands of points, the device's processor would choke. It would take several minutes to calculate, lag heavily when you went off-route, or completely crash mid-ride. The "125 points between vias" rule was a legacy structural setting in Garmin's code, but the hardware couldn't smoothly run a single route packed to that limit.
By switching the XT2 and XT3 to a strict 1,100 total point ceiling, Garmin ensured the routing engine always has enough computational headroom to calculate instantly, render complex maps smoothly, and recalculate on the fly without lagging.@Olivier-Weinand you missed the smileys?! I know the features of the XT, it was a joke between @habven-aka-mrmra and me.
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I use the HERE map set with vehicle on car. All stops are waypoints. I optimize my routes using the toolkit switching from faster time to shorter distance and drag the route to either the reference route or the track. Once done, I export the route gpx 1.1 (route, track, poi) and either import it using the Drive app or put it directly in the gpx folder in the XT. Recalculation is always set on yes. The route will be for 99.9% correct. The track is always set to visible as reference.
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I use the HERE map set with vehicle on car. All stops are waypoints. I optimize my routes using the toolkit switching from faster time to shorter distance and drag the route to either the reference route or the track. Once done, I export the route gpx 1.1 (route, track, poi) and either import it using the Drive app or put it directly in the gpx folder in the XT. Recalculation is always set on yes. The route will be for 99.9% correct. The track is always set to visible as reference.
@Guzt Are you still able to export using the Garmin Drive app? There are many reports that it is not working again after another update from Garmin.
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@nick-carthew I didn't update the Drive app. Still running v4.23.32 on my old SE10 iPhone
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@nick-carthew I didn't update the Drive app. Still running v4.23.32 on my old SE10 iPhone
@Guzt I think that was a wise move. Thanks for your reply.
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@nick-carthew iOS of my old SE10 mini is 15.8.8. Drive app requires 16.5 or later. But one can still install it using an old version of iTunes where the apps tab is still available
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@Olivier-Weinand you missed the smileys?! I know the features of the XT, it was a joke between @habven-aka-mrmra and me.
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Problems with the Drive-app are, what I read, only with iOS. I updated my phone and tablet, both on Android, and they work fine.
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Even those of us who have used Garmin devices for years and understand the associated software (up to the Garmin XT1) Will bash Garmin for good reason.
Good
The Hardware.....robust water dust and heat proof. My Oldest Garmin device is 22 and still works.
The Desktop software Mapsource and later Basecamp are fine pieces of software and I still use Basecamp for handling tracks and POI's as this is an area in MRA that still needs work.Bad
The XT1 and I believe the 2 and 3 have a bug with "imported" routes which causes repeated U turns if a via point is missed (even if skipped). This can be mitigated by making all routes "Saved" but its something to be aware of.
Somewhere after the Zumo 390 and 590 GPS units Garmin changed the Routing algorithm of the devices so that with the devices set using the same parameters "Faster Time" no longer meant the fastest time between two way points irrespective of road type but meant "Faster Roads" creating additional complication when designing routes for a Garmin XT1 for example as Basecamp routes were not longer WYSIWYG with the GPS unit.
For the XT1 "explore" does not add value to the experience of using the unit if you connect it. Its a poor piece of software IMO. In many ways MRA is what explore should have been.
Garmin's recent software has in general been buggy. The otherwise excellent "Drive" app was broken for Android users recently when they added functionality unrelated to the Zumo XT
If you are using the unit outside its area for example using a Europe unit in the US or visa versa you can load Garmin's expensive "Here" maps or you have to Garminise Open Street Maps to get coverage.
I've moved to navigation using the MRA navigation app. Mainly because my Africa twin has built in AA/CP and I can manipulate the software using my bar buttons which is safer and more convenient than prodding the XT screen (I now I should stop!)
What I have found is that working this way via android auto is more flexible. I use My Route app navigation for routes. OSMand for tracks and Google maps for fast A-B navigation and using voice commands to find coffee and lunch stops. I still have my XT mounted as a backup with my routes and tracks "Saved" on it. I have the Track displayed on it and any Custom or proximity alerted POI's I might want to use loaded.
@mzokk I didn't mean for my post to generate a critique for what's right/wrong with the XT. All navigation HW/SW has bugs, oddities or whatever you want to call them . The Garmin XT series is not immune. My main point is that if you know how the XTs (XT, XT2, XT3) work -- REALLY WORK, they're a perfectly good GPS solution. A properly constructed route in MRA or any other planner will execute correctly. The XTs don't screw up routes unless you've done something seriously wrong. Yet we get a parade of users who trash the units when it's instead operator error. Self-reflection is a much better solution in this realm.
As far as your comments, with due respect, RUT is not a universal problem. I've been using Garmins (BMW Nav VI, Zumo XT, XT3) as my primary route execution devices over the past 8 years, and I've never experienced RUT. I know that it exists, but hitting it depends on how you execute off-route recalculations. I've personally always subscribed to what's outlined in post #30 of this excellent MRA forum topic, which you also contributed to:
In short, I never turn auto recalculate on. I create routes to be ridden as created. I almost never deviate enough to need recalculations to continue back on-route. If I do, I have other approaches/tools to get back on track. The beauty of Garmins is that the route continues when you rejoin at a later point without having to recalculate anything. To me, this is one of the advantages of using an XT device for navigation.
Your other "Bad" items don't register on my radar. The Tread app for the XT2/XT3 is excellent IF you configure it carefully/correctly when installed. Most users get in trouble because they install without understanding the pros/cons of the options available.
I'm all for having debates and/or conversations when the people making complains understand the XT GPS units. Unfortunately, most of the time they don't.
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