Navigating using a gpx track

Discussion in 'Maps and Routing' started by Levisp, Aug 10, 2018.

  1. Levisp

    Levisp

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    HI all. I'm thinking of buying the new Rider 550 at present using Mobile App on my iPhone. One of the main reasons for buying the Rider 550 is the ability of planning a route / track on my computer using MyDrive and syncing to device. Something that the Mobile App sadly cannot do. If I plan a route which I do not want the Rider to alter then I use a track gpx rather than a route itn. Once the track is on the 550 and you start to navigate, what happens if you make a wrong turn and go off track ?

    Sorry if this has been asked before but I did search and could not find anything.
     
    Levisp, Aug 10, 2018
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  2. Levisp

    canderson Moderator

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    You will be rerouted to the original track.
    There are 3 flavors of *.gpx files. Unlike the 'waypoint' (similar to TomTom *.itn use) or 'route' styles, the 'track' style of *.gpx is VERY explicit in its directions, and is made up of a very dense set of points. It won't let you wander without notification.
     
    canderson, Aug 10, 2018
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  3. Levisp

    Levisp

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    Excellent thats what I wanted to hear. So its like Garmin with route re-calculation turned off. So if you go off route the original route stays intact, you will have to get back on track yourself. If I want it to re-calculate a new route to destination then I would use a route itn file. Is that correct ?
     
    Levisp, Aug 10, 2018
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  4. Levisp

    canderson Moderator

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    Ah, now that's a different question. If I recall correctly, when re-running an existing track *.gpx file, I believe the device will attempt to re-route you to the nearest point at which it can reconnect with your track.
    Here's the difference if you use *.gpx vs. *.itn. It's been about a year since I've run a pre-designed *.gpx and tried to vary from the planned track.

    The *.gpx track file provides zero latitude for your route. It wants you on that route no matter what. That means if there is a road closure or traffic or some other unpleasant blockage, it doesn't care. If there's a faster way, it doesn't care.

    Using the *.itn file, the routing engine is allowed to select the best route for you from one waypoint to the next. If you deviate from an *.itn route, it will always do it's best to bring you to the shortest/fastest (however you are configured) means of achieving the next waypoint in the *.itn list. That takes into account traffic, normally expected road speeds, etc. If you deviate from its original plan enough, it may well come up with alternates as you go.
     
    canderson, Aug 11, 2018
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  5. Levisp

    Levisp

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    Thank you so much for your detailed replies. It looks like it will work how I want it to work. Excellent.
     
    Levisp, Aug 11, 2018
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