MATLAB作图之制作动画：单摆运动仿真

MATLAB作图之制作动画：单摆运动仿真%制作动画%挂摆横梁plot([-0.2;0.2],[0;0],'color','y','linestyle','-',...'linewidth',10);%画初始位置的单摆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('off');%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;while1t=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