Man Scilab

contract_edge
Scilab function

contract_edge - contracts edges between two nodes

Calling Sequence

g1 = contract_edge(i,j,g)

Parameters

Description

contract_edge returns the graph g1 , the edges between the nodes number i and j being deleted, the nodes being reduced to one node with the same name as node i and located at the middle point between the 2 previous nodes.

Examples


ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 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 13 13 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);
g1=contract_edge(10,13,g);
show_graph(g1,'new');
 
  

See Also

add_edge ,   add_node ,   delete_arcs ,   delete_nodes ,  

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