> Great! Thanks. > > Also its missing the "!"... should be > "source.outE.inV.loop(2){!it.object.equals(sink)}.paths.each{" >
Yes...good catch. Good luck, Marko. http://markorodriguez.com > > > On Fri, Nov 18, 2011 at 9:47 PM, Marko Rodriguez <okramma...@gmail.com> wrote: >> Hey, >> >> Perhaps the simplist way to explore flow is to simply get the paths between >> source and sink and then calculate some function f over the path to >> determine its flow. For example: >> >> def f = { List path -> >> // some function over the path where every other element is >> an edge (see traversal below) >> } >> >> source.outE.inV.loop(2){it.object.equals(sink)}.paths.each{ >> println(it + " has a flow of " + f(it)) >> } >> >> This assumes you have a determined source and a determined sink and that >> there are no cycles in your gas pipeline. If there are cycles, then you can >> tweak the expression to make sure you break out of the loop when appropriate. >> >> From this basic idea you can then tweak it to simulate decay over time/step >> or implement random walks through the gasline if you are interested in >> sampling or studying local eigenvectors in the pipeline. >> >> Hope that provides you a good starting point. >> >> Enjoy!, >> Marko >> >> http://markorodriguez.com >> >> On Nov 18, 2011, at 1:20 PM, Alfredas Chmieliauskas wrote: >> >>> Hey Marko, >>> >>> I'm modeling the european gas transport/pipeline network. I need to >>> have a good way to calculate maximum flow from source to sink and get >>> the nodes in the path . >>> >>> Alfredas >>> >>> On Fri, Nov 18, 2011 at 2:48 PM, Marko Rodriguez <okramma...@gmail.com> >>> wrote: >>>> Hi, >>>> >>>>> has anyone implemented any of the max flow algorithms using gremlin? >>>> >>>> Most of the algorithms in my toolbox are flow-based algorithms. What in >>>> particular are you trying to do? >>>> >>>> Marko. >>>> >>>> http://markorodriguez.com >>>> _______________________________________________ >>>> Neo4j mailing list >>>> User@lists.neo4j.org >>>> https://lists.neo4j.org/mailman/listinfo/user >>>> >>> _______________________________________________ >>> Neo4j mailing list >>> User@lists.neo4j.org >>> https://lists.neo4j.org/mailman/listinfo/user >> >> _______________________________________________ >> Neo4j mailing list >> User@lists.neo4j.org >> https://lists.neo4j.org/mailman/listinfo/user >> > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user