show_nodes - highlights a set of nodes
show_nodes highlights the set of nodes nodes of the displayed graph in the current edit_graph window. If the optional argument sup is equal to the string 'sup', the highlighting is superposed on the previous one.
ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 11 12 13 13 13 14 15 16 16 17 17];
he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 15 12 13 9 10 14 11 16 1 17 14 15];
g=make_graph('foo',1,17,ta,he);
g('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642];
g('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301];
show_graph(g);
for i=2:3:g('node_number'), show_nodes([i]); end;
for i=1:3:g('node_number'), show_nodes([i],'sup'); end;