NARVAL_G_LoadGraph load the graph g stored in the file name.graph.
Examples
[path]=NARVAL_F_NARVALPath();//path to NARVAL modulepath=path+'/demos/';//folder pathname=path+'topo_100';[g]=NARVAL_G_LoadGraph(name);//application of NARVAL_G_LoadGraphind=1;[f]=NARVAL_G_ShowGraph(g,ind);g