{"id":3523,"date":"2025-11-01T23:29:13","date_gmt":"2025-11-01T15:29:13","guid":{"rendered":"http:\/\/81.70.49.155\/?p=3523"},"modified":"2025-11-01T23:29:13","modified_gmt":"2025-11-01T15:29:13","slug":"%e5%91%bc%e5%90%b8%e9%81%93%e7%b2%98%e8%86%9c%e8%8d%af%e7%89%a9%e6%89%a9%e6%95%a3%e6%a8%a1%e5%9e%8bmatlab","status":"publish","type":"post","link":"http:\/\/81.70.49.155\/?p=3523","title":{"rendered":"\u547c\u5438\u9053\u7c98\u819c\u836f\u7269\u6269\u6563\u6a21\u578b[MATLAB]"},"content":{"rendered":"

\n\t\"\"\n<\/p>\n

\n
\n\t\t\tclear; clc; close all<\/span>;<\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\t%% \u53c2\u6570\u8bbe\u7f6e<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\ttMax = 200000; % \u6a21\u62df\u65f6\u95f4\u6b65\u6570<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tlx=70; ly=100;<\/span>\n\t\t<\/div>\n
\n\t\t\tnx=100;ny=100;<\/span>\n\t\t<\/div>\n
\n\t\t\tPlayer=0; %\u836f\u7269\u5c42\u6570<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tDspeed=0.5; %\u6269\u6563\u901f\u5ea6<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tx=rand(nx,ny)*lx;<\/span>\n\t\t<\/div>\n
\n\t\t\ty=rand(nx,ny)*ly\/10+1.2*ly;<\/span>\n\t\t<\/div>\n
\n\t\t\tC=zeros(ly,2);<\/span>\n\t\t<\/div>\n
\n\t\t\tnumParticles = nx*ny; % \u9897\u7c92\u6570\u91cf<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tux=zeros(size(x,1),size(x,2));<\/span>\n\t\t<\/div>\n
\n\t\t\tuy=zeros(size(x,1),size(x,2));<\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tfor <\/span>tStep=1:tMax<\/span>\n\t\t<\/div>\n
\n\t\t\typ=y; %\u5907\u4efdy<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tk=y<ly;<\/span>\n\t\t<\/div>\n
\n\t\t\tux=Dspeed*(rand(nx,ny)-0.5).*k+(ux+0.03*rand(nx,ny)).*(1-k);<\/span>\n\t\t<\/div>\n
\n\t\t\tuy=Dspeed*(rand(nx,ny)-0.5).*k+(uy-0.0001*rand(nx,ny)).*(1-k);<\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tx=x+ux;%+0.5+0.5*sin(tStep\/10000*2*pi);<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\ty=y+uy;<\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tx=x.*(x<=lx).*(x>=0)+(x-lx).*(x>lx)+(x+lx).*(x<=0); %\u5faa\u73af\u8fb9\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tku2d=(y<ly).*(yp>ly);<\/span>\n\t\t<\/div>\n
\n\t\t\tkkup=(y>ly).*(yp<ly); %\u4ece\u4e0b\u5f80\u4e0a\u8d8a\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tkkdown=(y<0).*(yp>0); %\u4ece\u4e0a\u5f80\u4e0b\u8d8a\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\ty=(ly-0.2).*ku2d+y.*(1-ku2d);%\u5904\u7406\u4ece\u4e0a\u5f80\u4e0b\u8d8a\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\ty=(2*ly-y).*kkup+y.*(1-kkup);%\u5904\u7406\u4ece\u4e0b\u5f80\u4e0a\u8d8a\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\ty=(-y).*kkdown+y.*(1-kkdown);%\u5904\u7406\u4ece\u4e0a\u5f80\u4e0b\u8d8a\u754c<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tif <\/span>tStep<2000<\/span>\n\t\t<\/div>\n
\n\t\t\t Niteval=20;<\/span>\n\t\t<\/div>\n
\n\t\t\telse<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\t Niteval=200;<\/span>\n\t\t<\/div>\n
\n\t\t\tend<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tif <\/span>mod(tStep,Niteval)==0<\/span>\n\t\t<\/div>\n
\n\t\t\tclf;clc; tStep<\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tsubplot(1,2,1);<\/span>\n\t\t<\/div>\n
\n\t\t\thold on<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tpatch([0 lx lx 0],[2*ly\/3 2*ly\/3,ly ly],[0.4 1 0.3],'EdgeColor'<\/span>, 'none'<\/span>)<\/span>\n\t\t<\/div>\n
\n\t\t\tpatch([0 lx lx 0],[0 0 2*ly\/3 2*ly\/3],[0.4 0.5 0.8],'EdgeColor'<\/span>, 'none'<\/span>)<\/span>\n\t\t<\/div>\n
\n\t\t\t% scatter(x,y,'Marker','o','Color','red','MarkerFaceColor','red');<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tplot(x,y,'r.'<\/span>);<\/span>\n\t\t<\/div>\n
\n\t\t\taxis equal<\/span>; axis off<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\taxis([0 lx,0 1.3*ly])<\/span>\n\t\t<\/div>\n
\n\t\t\tset(gcf,'Color'<\/span>,[1 1 1])<\/span>\n\t\t<\/div>\n
\n\t\t\thold off<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tsubplot(1,2,2);<\/span>\n\t\t<\/div>\n
\n\t\t\tfor <\/span>i=ly:-1:1<\/span>\n\t\t<\/div>\n
\n\t\t\t C(i,1)=i;<\/span>\n\t\t<\/div>\n
\n\t\t\t C(i,2)=sum(sum((y>i-1).*(y<i)));<\/span>\n\t\t<\/div>\n
\n\t\t\tend<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tbarh(C(:,1)\/ly,C(:,2));<\/span>\n\t\t<\/div>\n
\n\t\t\t% axis([0 1000,0,4000])<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\t% axis equal<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tbox on<\/span><\/span>\n\t\t<\/div>\n
\n\t\t\tdrawnow<\/span>\n\t\t<\/div>\n
\n\t\t\tend<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n
\n\t\t\tend<\/span><\/span>\n\t\t<\/div>\n
\n\t\t<\/div>\n<\/p><\/div>\n<\/p>\n

\n\t<\/p>\n","protected":false},"excerpt":{"rendered":"

clear; clc; close all; %% \u53c2\u6570\u8bbe\u7f6e tMax = 200000; % \u6a21\u62df\u65f6\u95f4\u6b65\u6570 … \u7ee7\u7eed\u9605\u8bfb\u201c\u547c\u5438\u9053\u7c98\u819c\u836f\u7269\u6269\u6563\u6a21\u578b[MATLAB]\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"views":381,"_links":{"self":[{"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/posts\/3523"}],"collection":[{"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/81.70.49.155\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3523"}],"version-history":[{"count":1,"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/posts\/3523\/revisions"}],"predecessor-version":[{"id":3524,"href":"http:\/\/81.70.49.155\/index.php?rest_route=\/wp\/v2\/posts\/3523\/revisions\/3524"}],"wp:attachment":[{"href":"http:\/\/81.70.49.155\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/81.70.49.155\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3523"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/81.70.49.155\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}