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generate_connection.m
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generate_connection.m
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function [N, E] = generate_connection(N, E, new_Node, num)
num_nodes = length(N);
E=E';
scale = 100;
% Top node rises
E(E==num_nodes) = num_nodes+1;
new_connections = [];
if new_Node(3) == scale
Y = datasample(1:num_nodes, num, 'Replace', false);
for i=1:num
if Y(i) == num_nodes
connection = [Y(i)+1, num_nodes];
else
connection = [Y(i), num_nodes];
end
new_connections = [new_connections; connection];
end
else
z = N(:,3);
[over, ~] = find(z>new_Node(3));
[under, ~] = find(z<new_Node(3));
ant_under = randi(num-1);
ant_over = 1 + num-ant_under;
len_over = length(over);
if ant_over > len_over
ant_under = ant_under + (ant_over - len_over);
ant_over = len_over;
end
Y_under = datasample(under, ant_under, 'Replace', false);
for i = 1:ant_under
if Y_under(i) == num_nodes
connection = [Y_under(i)+1, num_nodes];
else
connection = [Y_under(i), num_nodes];
end
new_connections = [new_connections; connection];
end
Y_over = datasample(over, ant_over, 'Replace', false);
for i = 1:ant_over
if Y_over(i) == num_nodes
connection = [Y_over(i)+1, num_nodes];
else
connection = [Y_over(i), num_nodes];
end
new_connections = [new_connections; connection];
end
end
E = [E; new_connections]';
N = [N(1:num_nodes-1, :); new_Node; N(num_nodes, :)];
end