how to crate a video of multiple surf plots ?

I am running a code which produces a surf plot for every step of the loop. I want to create a video of the all these surf plots produced in each step. How can I do that?

[Walter Roberson]

https://www.mathworks.com/matlabcentral/answers/154659-how-to-create-animation-of-matlab-plotting-points-on-a-graph#answer_151599

Answer 1

[KSSV]

h = figure;
axis tight manual % this ensures that getframe() returns a consistent size
filename = 'test.gif';
[X,Y,Z] = peaks(100) ;
for n = 1:50
    % Draw plot for y = x.^n
    surf(X,Y,randsample(10,1)*Z) ;
    zlim([-100 100])
    shading interp
    drawnow
    % Capture the plot as an image
    frame = getframe(h);
    im = frame2im(frame);
    [imind,cm] = rgb2ind(im,256);
    % Write to the GIF File
    if n == 1
        imwrite(imind,cm,filename,'gif', 'Loopcount',inf);
    else
        imwrite(imind,cm,filename,'gif','WriteMode','append');
    end
end

[Raghu Piska]

Thank you very much. Can we also set the timer between the display of each plot in the video? i.e I want to see the video with a 5-sec pause between the successive plots.

[Walter Roberson]

If you do use imwrite() to write GIF specifically, then you can add

'DelayTime', 5

to the imwrite() calls, to cause the frame to be displayed for 5(ish) seconds.

If you create a movie using the techniques I linked to, then the general strategy would be to write the same frame multiple times -- either that or when you called VideoWriter() you pass in 'FrameRate', 1/5 so as to set it up for 1 frame every 5 seconds.

[Raghu Piska]

Thanks. It worked.