Hi! > Do you have any documentation on how simplification works? For > example, raising the value of the property > osmreader.wayPointMaxDistance to 5 (suggested value for Android) > reduces the overall number of edges generated or the complexity of > the single edge?
just the number of lat/lon points per edge via douglas peucker algorithm > By disabling this option do you mean set the value to 0? Yes Peter > > On 3/4/15 6:25 PM, Peter wrote: >> If you turn off simplification while import, yes >> (hopper.setWayPointMaxDistance). Although still not identical as you can >> get rounding differences >> >> Peter >> >> On 04.03.2015 18:13, Rossano Schifanella wrote: >>> Are those coordinates exactly the ones in the OSM node data without >>> any kind of processing? >>> >>> Thanks >>> Rossano >>> >>> On 3/4/15 1:41 PM, Peter wrote: >>>> edgeState.fetchGeometry() gives you all the geometry >>>> >>>> or use nodeAccess.getLat/Lon(edgeState.getBaseNode/AdjNode) to get >>>> only >>>> the end points >>>> >>>> Peter >>>> >>>> On 04.03.2015 13:36, Rossano Schifanella wrote: >>>>> That was the problem! I didn't specify the vehicle with setVehicle >>>>> when a GHRequest was created. >>>>> >>>>> I have another quick question: is it possible through the >>>>> LocationIndex or something similar to have for each edge in the graph >>>>> the coordinates (lat, lon) of the end points? >>>>> >>>>> Thanks! >>>>> Rossano >>>>> >>>>> >>>>> On 3/4/15 1:26 PM, Peter wrote: >>>>>>> In my case CH is turned off and I still get this exception when I >>>>>>> issue a routing request. Do you think is it possible? >>>>>> This should not happen - maybe this was a bug. Do you explicitly >>>>>> specify >>>>>> the vehicle in the request? >>>>>> And is it still the case with the current master? >>>>>> >>>>>> Peter >>>>>> >>>>>>>> Regards, >>>>>>>> Peter >>>>>>>> >>>>>>>> On 02.03.2015 22:44, Rossano Schifanella wrote: >>>>>>>>> Peter, >>>>>>>>> >>>>>>>>> thanks for the hint, I used the location index to find the >>>>>>>>> closest >>>>>>>>> edge and it worked. I have a couple of additional questions: >>>>>>>>> >>>>>>>>> - After having implemented a custom weight, I'm wandering if it's >>>>>>>>> possible to set a threshold in the length or travel time over >>>>>>>>> which a >>>>>>>>> tentative path is discarded (e.g., using astarbi)? Note that the >>>>>>>>> implemented custom weight doesn't use distance nor speed as >>>>>>>>> measure. >>>>>>>>> - What is the meaning of the method getMinWeight when, for >>>>>>>>> example, >>>>>>>>> astarbi is used? >>>>>>>>> - Is it possible to specify more than a value for the property >>>>>>>>> graph.flagEncoders (e.g., BIKE, FOOT) ? When I tried I got this >>>>>>>>> exception: java.lang.IllegalStateException: Multiple encoders are >>>>>>>>> active. cannot return one:bike,foot >>>>>>>>> What am I doing wrong? >>>>>>>>> >>>>>>>>> Thanks a lot! >>>>>>>>> Regards, >>>>>>>>> Rossano >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On 2/28/15 9:21 PM, Peter wrote: >>>>>>>>>> Hi Rossano, >>>>>>>>>> >>>>>>>>>> while import you'll have to store the mapping from osm node to >>>>>>>>>> internal >>>>>>>>>> node, then you can easily do what you proposed. A more generic >>>>>>>>>> solution >>>>>>>>>> would be to use GPS locations instead of OSM nodes to specify >>>>>>>>>> the >>>>>>>>>> weighting and then using the location index to lookup the >>>>>>>>>> closest >>>>>>>>>> edge. >>>>>>>>>> >>>>>>>>>> Then you have the edgeId to weight mapping which you could >>>>>>>>>> either >>>>>>>>>> put >>>>>>>>>> into the edge directly, or just use a double array where the >>>>>>>>>> edgeId is >>>>>>>>>> the index. Or use DataAcess which is a storable array for many >>>>>>>>>> purposed. >>>>>>>>>> >>>>>>>>>> Regards, >>>>>>>>>> Peter >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On 27.02.2015 23:08, Rossano Schifanella wrote: >>>>>>>>>>> Hi there, >>>>>>>>>>> >>>>>>>>>>> suppose I have an external file with this format >>>>>>>>>>> >>>>>>>>>>> OSM_NODE_ID1 OSM_NODE_ID2 w1 >>>>>>>>>>> >>>>>>>>>>> where OSM_NODE_ID1 and OSM_NODE_ID2 are two OSM node ids and w1 >>>>>>>>>>> is a >>>>>>>>>>> double that represents a custom weight. What I'd like to do is: >>>>>>>>>>> >>>>>>>>>>> 1) Find the edge gh_edge_id in the GraphHopper internal data >>>>>>>>>>> structure >>>>>>>>>>> that corresponds to the the edge OSM_NODE_ID1->OSM_NODE_ID2 >>>>>>>>>>> >>>>>>>>>>> 2) Create a data structure that maps the relation >>>>>>>>>>> >>>>>>>>>>> gh_edge_id w1 >>>>>>>>>>> >>>>>>>>>>> in a way that at runtime in a custom Weighting class I can >>>>>>>>>>> retrieve >>>>>>>>>>> the value w1 when the corresponding edge is visited. >>>>>>>>>>> >>>>>>>>>>> Which is the best approach to tackle this problem? >>>>>>>>>>> >>>>>>>>>>> Thanks a lot for your support. >>>>>>>>>>> >>>>>>>>>>> Rossano >> _______________________________________________ GraphHopper mailing list [email protected] https://lists.openstreetmap.org/listinfo/graphhopper
