作业帮MATLAB中单摆怎么保存成gif格式的%制作动画%挂摆横梁plot([-0.3;0.3],[0;0],'color','y','linestyle','-',...'linewidth',10);g=0.98; %重力加速度,可以调节摆的摆速l=1;theta0=pi/4;x0=l*sin(theta0);y0=(-1)*l*cos(theta0);axis([-0.
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/05 22:44:52
![MATLAB中单摆怎么保存成gif格式的%制作动画%挂摆横梁plot([-0.3;0.3],[0;0],'color','y','linestyle','-',...'linewidth',10);g=0.98; %重力加速度,可以调节摆的摆速l=1;theta0=pi/4;x0=l*sin(theta0);y0=(-1)*l*cos(theta0);axis([-0.](/uploads/image/z/8911665-9-5.jpg?t=MATLAB%E4%B8%AD%E5%8D%95%E6%91%86%E6%80%8E%E4%B9%88%E4%BF%9D%E5%AD%98%E6%88%90gif%E6%A0%BC%E5%BC%8F%E7%9A%84%25%E5%88%B6%E4%BD%9C%E5%8A%A8%E7%94%BB%25%E6%8C%82%E6%91%86%E6%A8%AA%E6%A2%81plot%28%5B-0.3%3B0.3%5D%2C%5B0%3B0%5D%2C%27color%27%2C%27y%27%2C%27linestyle%27%2C%27-%27%2C...%27linewidth%27%2C10%29%3Bg%3D0.98%3B+%25%E9%87%8D%E5%8A%9B%E5%8A%A0%E9%80%9F%E5%BA%A6%2C%E5%8F%AF%E4%BB%A5%E8%B0%83%E8%8A%82%E6%91%86%E7%9A%84%E6%91%86%E9%80%9Fl%3D1%3Btheta0%3Dpi%2F4%3Bx0%3Dl%2Asin%28theta0%29%3By0%3D%28-1%29%2Al%2Acos%28theta0%29%3Baxis%28%5B-0.)
MATLAB中单摆怎么保存成gif格式的%制作动画%挂摆横梁plot([-0.3;0.3],[0;0],'color','y','linestyle','-',...'linewidth',10);g=0.98; %重力加速度,可以调节摆的摆速l=1;theta0=pi/4;x0=l*sin(theta0);y0=(-1)*l*cos(theta0);axis([-0.
MATLAB中单摆怎么保存成gif格式的
%制作动画
%挂摆横梁
plot([-0.3;0.3],[0;0],'color','y','linestyle','-',...
'linewidth',10);
g=0.98;
%重力加速度,可以调节摆的摆速
l=1;theta0=pi/4;x0=l*sin(theta0);y0=(-1)*l*cos(theta0);
axis([-0.75,0.75,-1.25,0]);
axis('on');
%不显示坐标轴
%创建摆锤
head=line(x0,y0,'color','r','linestyle','.',...
'erasemode','xor','markersize',40);
%创建摆杆
body=line([0;x0],[0;y0],'color','b','linestyle','-',...
'erasemode','xor');
%摆的运动
t=0;
dt=0.01;
while 1
t=t+dt;
theta=theta0*cos(sqrt(g/l)*t);
x=l*sin(theta);
y=(-1)*l*cos(theta);
set(head,'xdata',x,'ydata',y);
set(body,'xdata',[0;x],'ydata',[0;y]);
drawnow
end
MATLAB中单摆怎么保存成gif格式的%制作动画%挂摆横梁plot([-0.3;0.3],[0;0],'color','y','linestyle','-',...'linewidth',10);g=0.98; %重力加速度,可以调节摆的摆速l=1;theta0=pi/4;x0=l*sin(theta0);y0=(-1)*l*cos(theta0);axis([-0.
参考自：MATLAB CENTRAL - How can I create animated GIF images in MATLAB
将那个循环的代码改成：
outfile = 'x.gif';
for t = 0:.1:2*pi
theta=theta0*cos(sqrt(g/l)*t);
x=l*sin(theta);
y=(-1)*l*cos(theta);
set(head,'xdata',x,'ydata',y);
set(body,'xdata',[0;x],'ydata',[0;y]);
% drawnow
frame = getframe(1);
im = frame2im(frame);
[imind,cm] = rgb2ind(im, 256);
if t == 0
imwrite(imind,cm,outfile,'gif','DelayTime',0,'loopcount',inf);
else
imwrite(imind,cm,outfile,'gif','DelayTime',0,'writemode','append');
end
end