+ // Define the spatial topology
+
+ void set_allowed_motion(int from_location, int to_location, int v);
+ void set_as_entrance(int location, int v);
+ void set_as_exit(int location, int v);
+
+ // Build or print the graph needed for the tracking per se
+
+ void build_graph();
+ void print_graph_dot(ostream *os);
+
+ // Define the detection scores
+