v.net.iso Splits network by cost isolines. Vector (v.*) ParameterVector|input|Input vector line layer (arcs)|1|False ParameterVector|points|Centers point layer (nodes)|0|False ParameterNumber|threshold|Threshold for connecting centers to the network (in map unit)|0.0|None|50.0|False *ParameterSelection|arc_type|Arc type|line;boundary;line,boundary|2 *ParameterString|center_cats|Category values|1-100000|False|False ParameterString|costs|Costs for isolines|1000,2000,3000|False|False *ParameterTableField|arc_column|Arc forward/both direction(s) cost column (number)|input|0|True *ParameterTableField|arc_backward_column|Arc backward direction cost column (number)|input|0|True *ParameterTableField|node_column|Node cost column (number)|points|0|True *ParameterBoolean|-g|Use geodesic calculation for longitude-latitude locations|False|True OutputVector|output|Network_Iso