MATLAB: Error using VideoWriter/writeVideo (line 344) Frame must be 434 by 343

graphgraphicsvideowriter

I getting error: Error using VideoWriter/writeVideo (line 344) Frame must be 434 by 343
Error in movie_trial5 (line 22) writeVideo(v,getframe(gca))
Here is my code:
nframes=50;
Frames=moviein(nframes);
x1=linspace(0,L,1000);
x2=linspace(L,2*L,1000);
figure
v = VideoWriter('E:\newfile.avi');
open(v)
for t=1:nframes
  y1=sin(x1)*cos(20*t);
  y2=sin(2*L-x2)*cos(20*t);
  plot (x1,y1,x2,y2,'Linewidth',3)
  writeVideo(v,getframe(gca))
end
close(gca)
close(v)

Best Answer

nframes=50;
Frames=moviein(nframes);
x1=linspace(0,L,1000);
x2=linspace(L,2*L,1000);
figure
v = VideoWriter('E:\newfile.avi');
open(v)
ax = gca();
for t=1:nframes
  y1=sin(x1)*cos(20*t);
  y2=sin(2*L-x2)*cos(20*t);
    if t == 1
      h = plot(ax, x1, y1, x2, y2, 'Linewidth',3);
      set(ax, 'XLimMode', 'manual', 'YLimMode', 'manual');
    else
      set(h(1), 'YData', y1);
      set(h(2), 'YData', y2);
    end
    drawnow();
    writeVideo(v,getframe(ax))
  end
  close(gca)
  close(v)
Besides being more efficient, this avoids the chance that the frame will change size.
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