not able to follow routes

[davebetty]

Hi some help please...

I've landed in marocco after being aided on getting here using a garmin 340.

ive downloaded both olaf and osm and made lots of routes to follow using basecamp.

it worked fine in europe but now when I select a route it tells me it can't calculate it. Indeed it cant seem to calculate any route in marocco. Back to the maps for time being which is fine on road but a littke worried about off the road trips. Has anyone a clye on what is haopening?

Cheers dave

[TheWarden]

which maps are active when you get the problem?

Olaf is not routable so if that's enabled switch to osm on the unit

[davebetty]

Just a thanks to Bertrand whos post has now dissappeared, but, in short, I had c8nfused the sat nav by importing two sets of user defined routes. Getting rid of one set has meant I can follow the pre programmed osm routes.

I have been navigating mainly by Berber shephards in any case. The pistes seem to change quite rapidly!

[Tony LEE]

You have solved that problem by the sound of it.

One other snag you might come up against is that in OSM, sometimes there are small breaks in the continuity of the maps. They may represent only a few metres of road, but the software sees it as two separate roads with no path between and sends you hundreds of km on a long detour.
Great maps and absolutely fantastic value for money, but never to be fully trusted.

[GreatJourneys]

That's why I don't rely on GPS or any electronic device when I'm planning a vacation. I prefer hard copy of road map to Google map as who knows when you get out of network. However, nice to learn you have solved your problem.

Have a nice journey

[trackdayrider]

maps.me is the solution if you've got android device and can get internet access to download the country map you need...

you can export the basecamp POI's to a kml file and save it somehwere then put it on your device to import it to maps.me app.

[Warin]

Originally Posted by Tony LEE

One other snag you might come up against is that in OSM, sometimes there are small breaks in the continuity of the maps. They may represent only a few metres of road, but the software sees it as two separate roads with no path between and sends you hundreds of km on a long detour.
Great maps and absolutely fantastic value for money, but never to be fully trusted.

I had a look at Morocco OSM ... I cannot see many breaks as you describe. I have been working in India to remove such breaks but there is more to do there than Morocco.

Perhaps the problem is the app rather than the base data.. may not like long routes.

-------------------------
If you are interested in improving the OSM data you can do it. I try to do this before I leave on my trip so it is as good as I can make it using satellite data that is available for use in OSM. There are also tools to check various aspects of the OSM data .. one of them does check for breaks in roads. There is no point in looking at the tools unless you are prepared to actually work at improving the data by getting an account, once you have that and have the time to learn how to fix/add things then you can use OSM Inspector | Geofabrik Tools .. here is India .. you need to change the "View:" box to "routing" and that then shows the breaks in roads.

[Tim Cullis]

Originally Posted by Tony LEE

One other snag you might come up against is that in OSM, sometimes there are small breaks in the continuity of the maps. They may represent only a few metres of road, but the software sees it as two separate roads with no path between and sends you hundreds of km on a long detour.

I've come across this problem with Garmin maps as well, for example with Garmin's Topo Maroc v2 you can't route from Marrakech to Ouarzazate via Telouet as there's a broken link between the N9 just past Tizi n'Tichka and the Telouet road. So unless you spotted this when planning the route you would end up on a massive diversion.

[TheWarden]

I've always had a problem with using Mapsource to plan routes and then the Montana rerouting this when I've loaded them onto the unit, probably my tech knowledge with the system.

As a work around for me I plan a route on Mapsource and convert it to a track, that way when it loaded into the Montana its 'fixed' and won't get rerouted. This also overcomes any of those (rare) little gaps in OSM which prevent a route being calculated.

[AdamL]

I'm just using maps.me in my first foregin trip, CE Europe. What is very nice, is the maps have large database of usefull, not popular in other GPS apps points like fountains, viewpoints, small walkpaths, public stairs for pedestrians etc. However using it on highways hubs may be difficult, because it dont show which road lane you should go to drive in proper direction. Another thing that is strange - any time you update the app, you need to download again all the maps you already have.