1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
articul(1) Scilab function articul(1)
NAME
articul - finds one or more articulation points
CALLING SEQUENCE
nart = articul([i],g)
PARAMETERS
g : graph list
i : integer
nart : integer row vector
DESCRIPTION
articul finds one or more articulation points (if they exist) of the graph
g. nart is the row vector of numbers of articulation nodes: deleting one of
these nodes increases the number of connected components of the graph. i
is the optional node number from which the algorithm starts. The default is
1. Note that the result depends strongly on this starting node.
EXAMPLE
ta=[2 1 3 2 2 4 4 5 6 7 8 8 9 10 10 10 10 11 12 13 14 15 16 17 17];
he=[1 10 2 5 7 3 2 4 5 8 6 9 7 7 11 13 15 12 13 14 11 16 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];
g('node_diam')=[1:(g('node_number'))]+20;
show_graph(g);
nart = articul(g)
show_nodes(nart);
|
