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| clc,clear, close all sj0=load('data12_1.txt'); x=sj0(:,1:2:8); x=x(:); y=sj0(:,2:2:8); y=y(:); sj=[x y]; d1=[70,40]; xy=[d1;sj;d1]; sj=xy*pi/180; d=zeros(102); for i=1:101 for j=i+1:102 d(i,j)=6370*acos(cos(sj(i,1)-sj(j,1))*cos(sj(i,2))*... cos(sj(j,2))+sin(sj(i,2))*sin(sj(j,2))); end end d=d+d'; w=50; g=100; for k=1:w c=randperm(100); c1=[1,c+1,102]; for t=1:102 flag=0; for m=1:100 for n=m+2:101 if d(c1(m),c1(n))+d(c1(m+1),c1(n+1))<... d(c1(m),c1(m+1))+d(c1(n),c1(n+1)) c1(m+1:n)=c1(n:-1:m+1); flag=1; end end end if flag==0 J(k,c1)=1:102; break end end end J(:,1)=0; J=J/102; for k=1:g A=J; c=randperm(w); for i=1:2:w F=2+floor(100*rand(1)); temp=A(c(i),[F:102]); A(c(i),[F:102])=A(c(i+1),[F:102]); A(c(i+1),F:102)=temp; end by=[]; while ~length(by) by=find(rand(1,w)<0.1); end B=A(by,:); for j=1:length(by) bw=sort(2+floor(100*rand(1,3))); B(j,:)=B(j,[1:bw(1)-1,bw(2)+1:bw(3),bw(1):bw(2),bw(3)+1:102]); end G=[J;A;B]; [SG,ind1]=sort(G,2); num=size(G,1); long=zeros(1,num); for j=1:num for i=1:101 long(j)=long(j)+d(ind1(j,i),ind1(j,i+1)); end end [slong,ind2]=sort(long); J=G(ind2(1:w),:); end path=ind1(ind2(1),:), flong=slong(1) xx=xy(path,1);yy=xy(path,2); plot(xx,yy,'-o')
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