Hi, there is already duration support via the second approach Andreas mentioned in AbstractFlagEncoder.handleFerryTags
Not all strings are supported though, see the comments in the code. Please submit a simple unit test showing that the duration handling or parsing does not work, this way we can faster fix it. Regards, Peter On 06.05.2015 11:46, Andreas Wolf wrote: > Hi, > > Am 05.05.2015 um 12:10 schrieb jean hilda: > > We are testing graphhopper with the CarFlagEncoder. To do so, we > > have created ways with highway=primary and maxspeed value and ways > > with route=ferry and duration tags with value = "hh:mm:ss" (no > > maxspeed for ferry). > > > primary ways and ferry routes are connected with nodes belonging to > > each others. With duration tag and no maxspeed tag on ferry > > routes, Graphhopper can't find a route. With no duration tag and > > maxspeed tag on ferry routes, Graphhopper is able to find a route. > > > Are we missing something or maybe graphhopper don't work with > > duration tags on ferry route ? > > AFAIK, there is no support for durations currently. At least I have > not seen it in the flag encoding, which is where it should normally be. > > There are—in my eyes—two ways to add this: > > 1. add support for durations in addition to speed or > 2. use the length of the ferry and the time to calculate a speed > > Approach 1 is definitely more work, especially in the routing part (I > have not really dug into that, so I cannot tell you exact steps). > Approach 2 OTOH might be rather inaccurate, as the speed is rounded > with a given precision (I think 5 km/h by default) to save space. With > an additional flag, you could probably turn off this rounding for some > ways (at the expense of lower possible maximum speed, but ferries are > rather slow anyways). > > Regards > Andreas > > > _______________________________________________ > GraphHopper mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/graphhopper
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