v.net.spanningtree Computes minimum spanning tree for the network. Vector (v.*) ParameterVector|input|Input vector line layer (arcs)|1|False *ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True *ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True OutputVector|output|SpanningTree