On Wed, Sep 27, 2017 at 4:07 PM, Moritz Lennert < [email protected]> wrote: > > > > Le 27 septembre 2017 13:11:54 GMT+02:00, Johannes Radinger < [email protected]> a écrit : > >Hi, > > > >I have a GRASS vector network that represents a river network (with > >many > >first order tributaries) and that has additional connected nodes that > >represent sampling sites. > > > >I'd like to extract a minimum subnetwork of the full network that still > >connects a set of selected nodes (e.g. identified by their cat). > >However, > >network edges (i.e. river segments) that are not necessary to connect > >the > >sampling points should be excluded in the new subnetwork. Is there a > >function or process in GRASS GIS to extract such a subnetwork that > >fully > >connects a set of selected nodes? > > not sure but maybe v.net.spanningtree ?
v.net.spanningtree calculates a tree covering all nodes in the network, not only selected nodes, therefore v.net.spanningtree does not apply here. Markus M > > Moritz > > > _______________________________________________ > grass-user mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-user
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