hi list, I've got a little net of ways and try to calculate a route from it. all the crossroads and all the ends of culs-de-sac have to be reached. according to the syntax of traveling-salesman-problem each cul-de-sac and crossroad is a "city". I tried the following: - import of the ways using v.in.ogr - v.clean.break to segment the ways at crossroads - v.net.nodes to create arcs and nodes of the net (looks o.k.) - v.net.salesman input=net_nodes alayer=1 nlayer=0 ccats=0 output=net_salesman to get the solution, but instead I get the following error message:
Number of cities: [0] ERROR: Not enough cities (< 2) although layer_0 consists of 4 nodes (two at ends of cul-de-sac and two crossroads. In addition to that the cat-row is 0 at every node. any ideas? Marco _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
