Output a video in MATLAB
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I'm attempting to make a video of my plot in MATLAB and when I run it, the output plot is just blank and it doesn't show anything but the code still runs. Any feedback?
for t = 2:100001
time=(t-2)*dt;
f=a0*sin(time/(2*pi));
massspring(:,t) = VibrationPosition(massspring(:,t-1), time, a0, pi, m, k, c, f, dt, n);
drawnow
F(t) = getframe(gcf);
end
video = VideoWriter('Helix.avi','Uncompressed AVI');
open(video)
writeVideo(video,F);
close(video)
figure(1);
plot(t3, massspring(1,:), t3, massspring(2,:));
xlabel('Time (s)')
ylabel('x_1(t), x_2(t)')
title('Timestep 0.01')
title('Mass Position and Velocity over time')
legend('Mass Position','Mass Velocity')
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Réponses (1)
Sudheer Bhimireddy
le 6 Août 2020
Try this
video = VideoWriter('Helix.avi','Uncompressed AVI');
open(video);
h=figure(1);
hold on;
for t = 2:100001
% Do your stuff
plot();
F = getframe(gcf);
writeVideo(video,F);
end
% Once you have all the timesteps plotted then close the videwriter
close(video);
4 commentaires
Sudheer Bhimireddy
le 7 Août 2020
So, are you not getting the "permission denied" message anymore?
If you are able to see the axis and labels and title etc., then the problem might be with the data itself or you are restricting the axis limits so that the data is not in the visible window. Try setting
xlim([-inf inf]);
ylim([-inf inf]);
Also try with only one timestep and check. Also, check if your data has NaN values.
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