Hi Peter, Thanks. Actually I only have 1 flagEncoder in the EncodingManager. The call is exact same, preparation.findSubnetworks()
preparation.findSubnetworks() using edgeFilter which is also from singleEncoder. *Best Regards,* *ZhiQiang ZHAO* On Sun, Jul 26, 2015 at 7:56 AM, Peter <[email protected]> wrote: > Hi John, > > it should not be related to calling these method twice. It is just one > time where you calculate the subnetworks independent of any FlagEncoder or > direction via findSubnetworks and the second pass is FlagEncoder- and > access-dependent via removeDeadEndUnvisitedNetworks. > > Regards, > Peter > > > On 24.07.2015 21:16, John Zhao wrote: > > Hi Peter, > > I am still confused. > at first we call > map = findSubnetworks(); > > after the cleanup, we call the same method in Graphhopper. > > int remainingSubnetworks = preparation.findSubnetworks().size(); > > Why the subnetwork was recognized the latter time, but not the first time? > > we remove some edges make it not connected? > > > *Best Regards,* > *ZhiQiang ZHAO* > > On Thu, Jul 23, 2015 at 2:22 PM, Peter <[email protected]> wrote: > >> >> Hi ZhiQiang, >> >> yes, according to the wiki this is wrongly mapped: >> * Avoid tagging highway intersections as that does not make clear which >> way has the impediment. * >> >> http://wiki.openstreetmap.org/wiki/Tag:barrier%3Dgate >> >> Peter >> >> >> On 23.07.2015 23:16, John Zhao wrote: >> >> Hi Peter, >> >> Maybe the following one related with >> https://github.com/graphhopper/graphhopper/issues/388#issuecomment-88066385 >> >> >> I have a look at 37.32611992939085,-121.9961998312816. >> It seesm related with barrier=gate at intersection. >> http://www.openstreetmap.org/node/1126492194 >> >> *Best Regards,* >> *ZhiQiang ZHAO* >> >> On Thu, Jul 23, 2015 at 2:11 PM, Peter <[email protected]> wrote: >> >>> >>> There are two types of subnetworks and the smaller ones seems to be >>> 'one-way subnetworks' which means they are eg. only reachable as >>> destination or start. But if you would start from a destination-only >>> subnetwork you'll get 'not found' for all points outside of this network. >>> >>> Regards, >>> Peter >>> >>> >>> On 23.07.2015 23:03, John Zhao wrote: >>> >>> Interesting, >>> when I increase minOnewayNetworkSize from 20 to 50, the following two >>> disappeared. >>> subnetwork start from: 37.32611992939085,-121.9961998312816 size: 24 >>> subnetwork start from: 37.78373608999855,-122.25065187925067 size: 34 >>> >>> *Best Regards,* >>> *ZhiQiang ZHAO* >>> >>> On Thu, Jul 23, 2015 at 1:55 PM, John Zhao <[email protected]> wrote: >>> >>>> Hi, >>>> >>>> I tried car flag encoder with following parameter on San Francisco >>>> bay area data from mapzen. >>>> >>>> https://s3.amazonaws.com/metro-extracts.mapzen.com/san-francisco-bay_california.osm.pbf >>>> >>>> minNetworkSize=200 >>>> minOnewayNetworkSize=20 >>>> >>>> I printed all the remaining subnetworks. >>>> edges: 591932, nodes 437420, there were 3496 subnetworks. removed >>>> them => 13121 less nodes. Remaining subnetworks:5 >>>> The remaining subnetworks are: >>>> subnetwork start from: 37.32611992939085,-121.9961998312816 size: 24 >>>> subnetwork start from: 37.56018439442332,-122.30257814308803 size: >>>> 436637 >>>> subnetwork start from: 37.78373608999855,-122.25065187925067 size: 34 >>>> subnetwork start from: 38.180185962770565,-121.70631393878864 size: 301 >>>> subnetwork start from: 37.85717050411933,-122.07633641532816 size: 424 >>>> >>>> I don't understand why there is still subnetwork less than 200 nodes. >>>> >>>> I have a look at 37.32611992939085,-121.9961998312816. >>>> It seesm related with barrier=gate at intersection. >>>> http://www.openstreetmap.org/node/1126492194 >>>> >>>> *Best Regards,* >>>> *ZhiQiang ZHAO* >>>> >>> >>> > > _______________________________________________ > GraphHopper mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/graphhopper > >
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