animation : movie + comet in one figure (subplots)

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N 2014-9-1

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https://ww2.mathworks.cn/matlabcentral/answers/153035-animation-movie-comet-in-one-figure-subplots

评论： Geoff Hayes 2014-9-2

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Hi, I would like to plot two different animations in one figure. One the one hand I have a comet plot:

comet(data.pg{1,1});

And then I have an animation of a bar plot:

axis tight manual;
set(gca,'NextPlot','replaceChildren');
for i = 1:length(emg2{1,1})
extensors = [emg2{1,1}(i,1:5);emg2{1,1}(i,6:10);emg2{1,1}(i,11:15);emg2{1,1}(i,16:20);emg2{1,1}(i,21:25);emg2{1,1}(i,26:30);emg2{1,1}(i,31:35);emg2{1,1}(i,36:40);emg2{1,1}(i,41:45)];
bar3(abs(extensors))
F(i) = getframe;
end
movie(fig,F,1)

Now I want both animations to run at the same time and in the same figure but in subplots. I used a code but it doesn't work. Can anybody help ?

axis tight manual;
set(gca,'NextPlot','replaceChildren');
for i = 1:length(emg2{1,1})
    subplot(1,2,1);
    extensors = [emg2{1,1}(i,1:5);emg2{1,1}(i,6:10);emg2{1,1}(i,11:15);emg2{1,1}(i,16:20);emg2{1,1}(i,21:25);emg2{1,1}(i,26:30);emg2{1,1}(i,31:35);emg2{1,1}(i,36:40);emg2{1,1}(i,41:45)];
    bar3(abs(extensors))  
    subplot(1,2,2);
    comet(data.pg{1,1});
    F(i) = getframe;
end
movie(F,1)

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N 2014-9-1

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This is what I have so far, now both come in one figure but only the comet code runs, the bar3c does not change-animate

figure(1)
set(gca,'NextPlot','replaceChildren');
for i = 1:length(emg2)
subplot(2,1,1)
extensors = [emg2{1,1}(i,1:5);emg2{1,1}(i,6:10);emg2{1,1}(i,11:15);emg2{1,1}(i,16:20);emg2{1,1}(i,21:25);emg2{1,1}(i,26:30);emg2{1,1}(i,31:35);emg2{1,1}(i,36:40);emg2{1,1}(i,41:45)];
bar3c(abs(extensors))
subplot(2,1,2)
comet(data.pg2{1,1}(:,1))
F(i) = getframe;
end
movie(F,1)

Geoff Hayes 2014-9-2

在 MATLAB Online 中打开

Have you stepped through the code to see what the length of emg2 is? Try doing this, and especially observe the behaviour of comet. This function is an animation, so as soon as you execute the statement

comet(data.pg2{1,1}(:,1))

the animation will begin and end before the next iteration of the for loop. So if the loop is supposed to iterate 100 times, then the same comet animation will play 100 times. If you want the comet to advance by one frame at each iteration (given that you have code to capture a frame), then you may have to rethink the use of comet in your code and manually advance the data.pg2 to the next "frame" or position.

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