The tools of automatic canal modeling allow to define in some mouse clicks the parameters of a network part (nodes, reaches, sections, abscissas, slopes, profiles, parameters).
For using them, one should have drown some reaches on the graph (for example, from a map, and then select the part on (...)
SIC^2 : Logiciel de Simulation Intégrée des Canaux et de leur Contrôle
David Dorchies