NL_G_ShowGraphN displays the index of each node inside the graph G within the window W defined by its handle F.
Examples
l=5;//number of linesc=7;//number of columnsLx=1000;//network area x-sideLy=1000;//network area x-side[g]=NL_T_Grid(l,c,Lx,Ly);//generation of a topology in respect with the grid methodind=1;[f]=NL_G_ShowGraphN(g,ind);//application of NL_G_ShowGraphN