How to create animation ?

Question

Kiran HR 2018-12-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/436933-how-to-create-animation

回答： Image Analyst 2018-12-22

I have written a code to solve differential equation of a simple pendulum. I tried creating animation of the same. But I am not getting properly. Please correct me.

clear all
close all
clc
%let theeta=y
L=1;
t=[0 20];
yo=[0 3];
[t,y]=ode45('simplependulum',t,yo)
figure(1)
plot(t,y(:,1))
xlabel('time')
ylabel('displacement')
figure(2)
plot(t,y(:,2))
xlabel('time')
ylabel('angular velocity')
O=[0 0];
axis(gca,'equal');
axis([-0.7 0.7 -0.7 0.2]);
grid on;
figure(3)
for i=1:length(t)
    P=L*[sin(y(i,1)) -cos(y(i,1))]
    O_circle=viscircles(O,0.01);
    pend=line([O(1) P(1)],[O(2) P(2)]);
    ball=viscircles(P,0.05);
    pause(0.001);
    if i<length(t)
        delete(pend);
        delete(ball);
        delete(O_circle);
    end
end