uploading GPX files

[Eric Jones]

I took a route created in Tyre and saved it as a gpx file. I imported it into my drive and it appeared as two tracks. I exported these from the Go 600 onto a memory card and looked at them in Tyre. I have attached a screen shot from my drive where the two files are clearly indicated as tracks.
The first track named Home to Manor Farm has 12 way point (the same number as the ITN file I started with).
The Second Track file is called T-Home to Manor Farm and contains 8300 way points.
Why two tracks?
Which do I use?
Should the first one really be a route?

I have been unable to find anything about this and the response from TomTom so far was a set of instructions taken from the manual on importing gpx files. No attempt to answer the questions

 

[canderson]

The *.gpx file created by Tyre no doubt has both the primary route points, stored in gpx "<rte>" format, and a full track (the 8300 points of the track at roughly 1 second intervals!) stored in gps "<trk>" format. If you open it in a text editor of any sort, I'd expect that is what you will find. Your 6100 is looking at both and showing you both.

Which you use depends upon why you created the *.gpx to begin with.
Was your purpose to force a specific route between each of your 12 waypoints (itinerary) so that there would be no deviation from your preferred route? That's what the track part of the *.gpx does.
If not, don't create and send *.gpx to your 6100. Create an *.itn from TYRE and send that instead. It should handle that as a simple list of 12 points.

 

[Eric Jones]

Thanks for the reply. I have used an old XL30 up to now and have just purchased a GO 6100 and I'm trying to sort out the best ways to use it.

I had two things in mind:
1) I would use an itn file for a normal car journey where I wanted a specific route
2) I was looking at track file for towing my caravan where the final part of the journey often requires a specific route to be travelled near the site to avoid narrow roads etc. I didn't want to be rerouted for any reason.

 

[canderson]

OK. I get that now.
You understand that you can export the *.itn from TYRE as well.
On the second point, yes, you get two files when you import the TYRE style *.gpx to MyDrive because there are two different styles of route embedded in the TYRE *.gpx.
The first one (without the "T") is a simple list of route points in the *.gpx <rtept> format, similar to an *.itn file output... ordered, but demanding no specific route for achieving them, allowing the unit's routing engine to do the work based upon routing preferences, traffic, etc.
The second entry (with the "T") is the track that has been computed to reach all of those <rtept> entries one by one.
So if you wish to follow the track carefully, select the "T-Home to Manor Farm" entry and you will be taken down the exact route created within TYRE.

 

[Eric Jones]

Thanks again for the help. It's a pity there isn't a bit more in the manual about this.

 

[canderson]

Feature was released quite a bit after product initial release, so docs may not have caught up. No excuse, though. I've always believed that an electronic version of revised docs should accompany every release of new code that modifies/adds any feature.

 

[Enfrance]

While looking for something else I came across this thread and here we are in 2017 and I have been getting two files, the one with the 'T' was a mystery, so now I know, but where is the information on the TomTom website?

Many thanks canderson for your explanation.