
Transform your gpx to a breadcrumb of POI's
TomTom has the bad habbit to ignore (and detour) unknown tracks if it can't be mapped to an official road (like most offroad tracks). By converting a gpx track into a file of POI's (ov2), you can follow a breadcrumb of POI's and tackle this problem.
Be carefull not to use full tracks (gpx's) but only parts of it! A full track can result in 10.000+ POI's and that might be to much for your navigation device.
There are many reasons to prefer a TomTom over Garmin, expecially of you use it mainly onroad, but it sucks if you want it offroad (or on a route with parts that are offroad).
The TomTom Rider navigation maps .gpx files to existing roads on the TomTom map. This means most non-tarmac road are ignored, because they are not known for TomTom as roads and the TomTom forces you to take a big de-tour to get a closed to the original track.
Navigating turn-by-turn in offroad terrain is in most cases not possible anyway, but just showing a line on your navigation device would be very helpfull to give some directions.
Even that's not possible on the TomTom, but there is work around: A breadcrumb with POI's!
There are plenty of advanced editing tools (like Basecamp), but those can be very annoying if you want to do some simple editing. Below a list of simple websites/applications I use.
All sorts of generic gpx file options: like splitting and adding height profile to your gpx.
Reverse and cropping gpx files
A list style bases POI Editor (for ov2 files). Not visualized on a map. (Haven't found a tool online to preview all points on a map)
A userfriendly POI editor (Google API key needed)
Navigating on road with POI's can be annoying, so I'll use it only for the offroad parts and combine it with a normal TomTom route. The good part of TomTom is that it is very easy in 'picking up' your route again once your returning from the offroad part (it will create a big detour for your offroad part, but you just need to ignore that). The start of a row of POI's on your TomTom is the signal to use POI navigation and once the POI's ends, normal navigation takes over again. Creating mixed navigation requires two things: A TomTom route and multiple breadcrumbs with POI's.
Warning: The map TomTom uses on the device and TomTom Mydrive may differ! Always check you route on your device as wel!
Any ideas? feedback is always welcome!