-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlVJ4vsACgkQRJlqDhrZfp01PAD/WEGhHtjkVLKVW/3J1DfmLg2L 16F65QjIEskq5I56IUMA/1Gzn6PDH0XI4b89on+8XA3xqBODo9TE5y8I3OSuVEfW =MS+7 -----END PGP SIGNATURE----- _______________________________________________ GraphHopper mailing list [email protected] https://lists.openstreetmap.org/listinfo/graphhopper
