MATLAB: Save video from comet command

cometmovieplottingvideo processing

I use a comet command in my code to plot a graph (e.g. comet(x,y)). I want to save this in a video format to show it in a Powerpoint prresentation. How can I do it?

Best Answer

Instead of video, it is better to go for .gif file. See the example code below:
clc; clear all ;
x = 0:0.01:1;
figure(1)
filename = 'mygif.gif';
t = linspace(0,2*pi) ;
x = sin(pi*t) ;
for n = 1:length(t)
      plot(t(1:n),x(1:n))
      axis([min(t) max(t) min(x) max(x)]) ;
      drawnow
      frame = getframe(1);
      im = frame2im(frame);
      [imind,cm] = rgb2ind(im,256);
      if n == 1;
          imwrite(imind,cm,filename,'gif', 'Loopcount',inf);
      else
          imwrite(imind,cm,filename,'gif','WriteMode','append');
      end
end
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