Plotting continuous motion using loops

Question

Faith 2023-3-3

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1922705-plotting-continuous-motion-using-loops

评论： Faith 2023-3-3

Hello, so I have code up and running that animates a few graphical objects for a theta = -65 : 0. I now want to do this same thing but keep the animation running back and forth between 0 and -65 and back again. Is there a way to do this with loops?

Currently my set up is similar to:

theta = linspace(-65,0);

i = length(theta);

while(i>0)

y=sind(theta);

y_plot = y*sind(theta(i));

plot(theta,y_plot)

i = i-1;

pause(0.1);

end

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Answer 1

Morgan 2023-3-3

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https://ww2.mathworks.cn/matlabcentral/answers/1922705-plotting-continuous-motion-using-loops#answer_1184815

在 MATLAB Online 中打开

Try something along these lines:

% CREATE ANGLE ARRAY
theta = linspace(-65,0);
i = length(theta);
% LOOP FORWARD THEN BACKWARD
for n = [ 1:i i-1:-1:2 ]
    % Plot Stuff Here
end

If you're trying to create a loopable animation, this is the code to do it without duplicate frames that will look choppy. This way, it will be a smooth transition from forward to backward animation.

Let me know if you have questions or need any more help!