Process Garmin shaping point information in .gpx file on import

[rumbrummer]

Hi,
we had a similar discussion 2 years ago, in this forum:

Converter Kurviger routes for newer Garmin / BMW Navis

(Deutscher Text weiter unten!) Hi everyone, I often transfer longer routes from Kurviger (GPX export with route + track) with many intermediate points (so that the Navi follows the Kurviger route) to my BMW Navigator 5. For this I use my Android tablet during motorcycle trips (both for the planning in the Kurviger app and for the transfer to the Nav 5). Problem: Since the Nav5 can handle only 31 ViaPoints per route (including start and destination), the routes are divided by the Nav 5 in sev…

In the old Google Group I put some examples:
https://groups.google.com/forum/#!topic/kurviger/5tTTeGXoNSU
If you can not acces them, I can put them also here. I analyzed the format by “reverse engineering” of some Garmin GPX (Garmin Navi, BaseCamp), there are some rules:

• 1st point of route (start) has to be a ViaPoint
• last point of route (destination) has to be a ShapingPoint
• there is a maximum of ViaPoints per route (BMW Navigator: 31) - if there are more ViaPoints, the route will be split in 2 or more routes during import
• there is a maximum of consecutive ShapingPoints (Manual BMW Navigator: 50) - I do not know, what happens, if there are more, I did some tests, sometimes it works, sometimes you get an error during import, and I also generated Navigator 5 crashs of using “maximum routes” with 31 Viapoints and 1500 ShapingPoints - but that was just when trying to find the limit, during “real life” it is no problem
• in a route with inly 2 ViaPoints (start/destination) it seems to be allowed to have more than 50 ShapingPoints
• the kind of route points (Via / Shaping) is defined by extensions
• as far as I have seen, all ViaPoints in a route have the same calculation mode (in BMW Nav5 you can set the calculation mode of a route, but not of a single segment / ViaPoint )
• there are 4 calculation modes: FasterTime, CurvyRoads, Direct, ShorterDistance
• 2 years ago I could use the links in the Garmin GPX to see the rules - but now I just get 404-errors
• as far as I can see, there is no limitation for number of ShapingPoints, if just 1st and last point are ViaPoints …
• at least TomTom Rider 550 just seem to ignore these (Gramin specific) extensions
• In the Kurviger APP you can export “Garmin ShapingPoint GPX (*.gpx)” - I think, that alogrithm is a good base. There are only 2 ViaPoints in, the rest are ShapingPoints (goal was to prevent route split during import to Garmin device) - next improvement step might be something like “Make all kurviger waypoints to ViaPoints” …

Regards

Markus