How to save animated plots

Hi

I have an animated plot, and I want to save it - possibly an animation, and I want to know how to do it?

Answer 1

[Clay Swackhamer]

%% Make some data
t = 1:0.1:2*pi
y = sin(t)

%% Initialize video
myVideo = VideoWriter('myVideoFile'); %open video file
myVideo.FrameRate = 10;  %can adjust this, 5 - 10 works well for me
open(myVideo)

%% Plot in a loop and grab frames
for i=1:1:length(t)
    plot(t(1:i), y(1:i), 'LineWidth', 3)
    ylim([-1, 1])
    xlim([0, 2*pi])
    pause(0.01) %Pause and grab frame

    frame = getframe(gcf); %get frame
    writeVideo(myVideo, frame);
end
close(myVideo)

[Prakhar Sharma]

Its, perfect. is there any way to improve the quality of the video.

[Moein M]

Is there a way to control the speed at which the plot is being drawn? @Swackhamer

It would be great if you add that to the code.

[Clay Swackhamer]

You could try adding

pause(0.25) %pause 0.25 seconds

in the loop to slow it down. It could also work to play with the framerate parameter.

Hope that helps.

Clay

[Emma Visibelli]

Hi everyone!

Can I ask you a favour as it may be similar to the previous one?

I am trying to copy/transfer a plot (figure) in psychtool box window.

Do you know how I can do that?

I have my plot:

AccuracyFinal=[accuracy1,accuracy2,accuracy3,accuracy4,accuracy5];

plot(AccuracyFinal,'b--','LineWidth',5);

title('The Test Trend')

xlabel('Exercise')

ylabel('Accuracy')

legend('Trend','Location','northeast')

xlim ([1 5])

xticks([1 2 3 4 5])

ylim ([0 100])

yticks([10 20 30 40 50 60 70 80 90 100])

This is how I transfered it to psychtool box window with this code:

set(gcf, 'Position', [0 0 250 250]);

saveas(gcf, 'img.jpg');

myImage=imread("img.jpg");

tex=Screen('MakeTexture',win, myImage);

Screen('DrawTexture', win,tex)

The problem is that the name of axes do not appear and neither the title or the legend!

Please let me knwo if you can help me out!!

Thank you!

[Clay Swackhamer]

I'm not sure why, but could you simply re-add the axes titles, title, and such once you replot it?