动图有gif格式和视频的avi格式。
1、sin(x)动图
clear allh = animatedline;%动画线axis([0 4*pi -1 1])box onx = linspace(0,4*pi,200);for k = 1:length(x) y = sin(x(k)); addpoints(h,x(k),y);%将数据添加到动画线中 drawnow%画出动画线 f=getframe(gcf); imind=frame2im(f); [imind,cm] = rgb2ind(imind,256); if k == 1; imwrite(imind,cm,'test.gif','GIF', 'Loopcount',inf,'DelayTime',1); else imwrite(imind,cm,'test.gif','GIF','WriteMode','append','DelayTime',1); end end
2、
close all; clear all;%创建avi文件对象aviobj = VideoWriter('test.avi','Uncompressed AVI');open(aviobj) %动画部分代码t = linspace(0,2.5*pi,40);fact = 10*sin(t);fig=figure;[x,y,z] = peaks;for k=1:length(fact) h = surf(x,y,fact(k)*z); axis([-3 3 -3 3 -80 80]) axis off caxis([-90 90]) %获取当前画面 F = getframe(fig); %加入avi对象中 writeVideo(aviobj,F); %转成gif图片,只能用256色 im = frame2im(F); [I,map] = rgb2ind(im,256); %写入 GIF89a 格式文件 if k == 1; imwrite(I,map,'test.gif','GIF', 'Loopcount',inf,'DelayTime',0.1); else imwrite(I,map,'test.gif','GIF','WriteMode','append','DelayTime',0.1); end endclose(fig);%关闭avi对象 close(aviobj); 
3、
clear allclose allmov=VideoWriter('mult_1.avi');open(mov);N=50;om=0.1;X = linspace(0,12.4,N);Y = 0*X;Z2= 0*X;for it=1:100 Z = cos(X-it*om); Y2= cos(X-it*om); stem3(X,Y,Z,'r','fill') hold on stem3(X,Y2,Z2,'k','fill') hold on; line(X,Y,Z2); for ix=1:N hold on; plot([X(ix) X(ix)],[0 Y2(ix)],'k'); end; hold off view(-25,30); xlim([X(1) X(end)]); ylim([-1 1]) zlim([-1 1]) set(gcf,'Color',[1 1 1],'nextplot','replacechildren', 'Visible','off') axis off FF=getframe(gcf); % With "VideoWriter" use "writevideo" to add frames to the video writeVideo(mov,FF); im = frame2im(FF); [I,map] = rgb2ind(im,256); %写入 GIF89a 格式文件 if it == 1; imwrite(I,map,'test.gif','GIF', 'Loopcount',inf,'DelayTime',0.1); else imwrite(I,map,'test.gif','GIF','WriteMode','append','DelayTime',0.1); end end;% Close the video fileclose(mov); 