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add_node Scilab Group Scilab function add_node
NAME
add_node - adds a disconnected node to a graph
CALLING SEQUENCE
g1 = add_node(g,[xy,name])
PARAMETERS
g : graph list
xy : optional row vector of coordinates of new node
name
: optional name of the added node
g1 : graph list of the new graph with the added node
DESCRIPTION
add_node adds a disconnected node to graph g and returns the new graph
g1. The coordinates of the new node can be given as a row vector of
coordinates in xy. If the nodes of graph g have no coordinates (elements
node_x and node_y are []), to give xy has no effect. If the nodes of
graph g have coordinates and xy is not given, the new node has (0,0) as
coordinates. If name is given, it is the name of the new node, otherwise
the number of nodes plus 1 is taken as the name of the new node.
EXAMPLE
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);
n=g('node_number');
g1=add_node(g,[270 140]);
g1('node_color')=[ones(1,n) 11];
show_graph(g1);
SEE ALSO
add_edge, delete_arcs, delete_nodes
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