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#graphhopper

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Nemo_bis 🌈

What #OpenStreetMap routing method would you use to draw a reasonably efficient route to visit a number of coordinates (dozens, hundreds of places)?

#OpenRouteService is the only option mentioned in wiki.openstreetmap.org/wiki/Tr .

For example: tour of 35 #Helsinki city #libraries. I did the track manually on #GraphHopper and imported it on #uMap. Surely there's a better way?
graphhopper.com/maps/?point=60
umap.openstreetmap.fr/en/map/h

35 Helsinki libraries on uMap
35 Helsinki libraries on GraphHopper
Public
scy

Hey #OpenStreetMap peeps, how can I debug this strange routing behavior?

#GraphHopper & #OSRM make a simple left turn (correct), while #Valhalla and #OsmAnd act as if there's a turn restriction and make a U-turn instead.

This is at 51.73201° N, 9.97389° E, coming from north on B3 and going to the east on A7.

There's been a construction site here a few weeks ago, so my first suspicion was stale data, but even with OsmAnd Live it still does it.

I can't see any restrictions in the data. Ideas?

GraphHopper simply making a left turn.
OSRM simply making a left turn, too.
Valhalla drives straight on, then does a U-turn and a right turn.
OsmAnd drives straight on, then does a U-turn and a right turn, too.
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Der Heinz

@blausand Nun ja, die Routenvorschläge von #GraphHopper fürs Fahrrad sehen dann aber auch sehr nach quick'n dirty aus. Habe vorhin mal probehalber Start und Ziel fürs #mdrza eingegeben. Suboptimal wäre untertrieben. Dann doch lieber bei #osmand (ggf. mit #BRouter als offline Engine) ein paar Sekunden warten und dafür eine wirklich brauchbare Route erhalten.
Und wenn ich vorab planen kann, suche ich mir die Routen auf #bikerouter und importiere die Tracks dann zum Navigieren in OsmAnd.

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Neurobändiger

@blausand @Cheatha Du kannst #Graphhopper als Routingengine auch für #OSMand aktivieren: graphhopper.com/blog/2024/02/2
Die neue Version 4.7 soll schneller routen: osmand.net/blog/osmand-android

OSMAnd with GraphHopper navigation
GraphHopper Directions API · OSMAnd with GraphHopper navigation - GraphHopper Directions APIOSMAnd is a popular OpenStreetMap-based map application for Android and iOS that supports offline maps. A lesser known feature is that you can replace the built-in vehicle profiles. For example, you can use GraphHopper to quickly calculate your route online. As the first step you need a GraphHopper API key: register here and then login […]
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