union(g,h1,h2) --- set g equal to the union of h1 and h2. The vertices of g are the union of the vertex sets of h1 and h2, and the edge set of g is the union of the edge sets of h1 and h2.
0001 function union(g,h1,h2) 0002 % union(g,h1,h2) --- set g equal to the union of h1 and h2. 0003 % The vertices of g are the union of the vertex sets of h1 and h2, and the 0004 % edge set of g is the union of the edge sets of h1 and h2. 0005 0006 global GRAPH_MAGIC 0007 0008 n1 = nv(h1); 0009 n2 = nv(h2); 0010 0011 g1 = graph; 0012 g2 = graph; 0013 0014 copy(g1,h1); 0015 copy(g2,h2); 0016 0017 if n1 < n2 0018 resize(g1,n2) 0019 else 0020 resize(g2,n1) 0021 end 0022 0023 GRAPH_MAGIC.graphs{g.idx}.array = ... 0024 double(matrix(g1) | matrix(g2)); 0025 0026 free(g1); 0027 free(g2);