traveling_salesman_plot.m

遗传算法工具包

function state = traveling_salesman_plot(options,state,flag,locations)
%   TRAVELING_SALESMAN_PLOT Custom plot function for trveling salesman.
%   STATE = TRAVELING_SALESMAN_PLOT(OPTIONS,STATE,FLAG,LOCATIONS) Plot city
%   LOCATIONS and connecting route between them. This function is specific
%   to the traveling salesman problem.

%   Copyright 2004 The MathWorks, Inc.
%   $Revision: 1.1.4.1 $  $Date: 2004/03/26 13:26:14 $
persistent x y xx yy
if strcmpi(flag,'init')
  load('usborder.mat','x','y','xx','yy');
end
plot(x,y,'Color','red');
axis([-0.1 1.5 -0.2 1.2]);

hold on;
[unused,i] = min(state.Score);
genotype = state.Population{i};

plot(locations(:,1),locations(:,2),'bo');
plot(locations(genotype,1),locations(genotype,2));
hold off