Create and Save a time varying animation of x-y position

Question

Devin Dalton 2022-1-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1623160-create-and-save-a-time-varying-animation-of-x-y-position

回答： KSSV 2022-1-6

I have a time varrying integration simulation that outputs a Time vector "T" where T(1) = 0 and T(end) = simulation run time but the steps between T(i) and T(i+1) is not constant, it also outputs a position vector Q where Q(1,1) = my initial x position and Q(2,1) is my initial y position. Q(1,end) is the x-position at the end of the simulation and Q(2,end) is the y-position at the end of the simulation.

I want to create and save (to use in a presentation) an animation of the x-y position that varries with time giving you a sense of the velocity as well.

Right now the code I am using below has two issues:

1: I can't save the animation

2: The animation doesn't incorporate the variance in time giving the animation a constant velocity feel when in actuality my velocity is increasing.

plot(Q(1,:),Q(2,:))
hold on
for i = 1:length(Q(1,:))
    h = plot(Q(1,i),Q(2,i),'^r'); 
    pause(0.0001)
    delete(h)                                
end