File: graph_diameter.cat

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graph_diameter      Scilab Group      Scilab function        graph_diameter
NAME
   graph_diameter - diameter of a graph
  
CALLING SEQUENCE
 [d,p] = graph_diameter(g)
PARAMETERS
 g  : graph list 
    
 d  : integer
    
 p  : integer row vector
    
DESCRIPTION
   graph_diameter computes the diameter of the graph g i.e. the  largest
  shortest path between two nodes. The length of the arcs are supposed to
  be integer (and the default value is 1). The output is the value  d of
  the length of the diameter and p is the corresponding path.
  
EXAMPLE
 ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 10 11 12 13 13 14 15 16 16 17 17];
 he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 13 15 12 13  9 14 11 16 1 17 14 15];
 g=make_graph('foo',0,17,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];
 g('node_diam')=[1:(g('node_number'))]+20;
 show_graph(g);
 [d,p] = graph_diameter(g)
 show_arcs(p);
SEE ALSO
   graph_center