Hi Martin, You're looking at the right code, but it's not used during `viaroute`. The turn instruction flags are baked into the graph structure that is generated during `osrm-extract`. daniel
> On Oct 16, 2015, at 1:08 PM, Martin Bang Andersen <[email protected]> wrote: > > Hi all, > > I have previous written about my troubles with missing instructions when a > secondary road has the same name as the primary road, then this > turn/instruction is somehow optimized out of the instruction set. > > See for example: > > http://map.project-osrm.org/?z=16¢er=56.176718%2C10.168061&loc=56.176712%2C10.168061&loc=56.177751%2C10.156174&hl=en&ly=&alt=&df=&srv= > > <http://map.project-osrm.org/?z=16¢er=56.176718%2C10.168061&loc=56.176712%2C10.168061&loc=56.177751%2C10.156174&hl=en&ly=&alt=&df=&srv=> > > Here the final instruction tells me: "Left onto Haslegårdsvej" and then after > 150m it says destination reached. It does not tell me to turn right onto the > secondary part of Haslegårdsvej after about 100m. > > Can anybody point me to the place in the source code where this turn is > removed from the list of instructions? I have looked a lot of places and my > best bet until now is the AnalyzeTurn function in > extractor/edge_based_graph_factory.cpp: > > // If street names stay the same and if we are certain that it is not a > // a segment of a roundabout, we skip it. > if (data1.name_id == data2.name_id && data1.travel_mode == > data2.travel_mode) > { > // TODO: Here we should also do a small graph exploration to check for > // more complex situations > if (0 != data1.name_id || m_node_based_graph->GetOutDegree(node_v) <= > 2) > { > return TurnInstruction::NoTurn; > } > } > > but it does not seem to be called during a viaroute request. > > Best regards > Martin Bang Andersen > > _______________________________________________ > OSRM-talk mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/osrm-talk
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