Plot a video near a matlab plot

Hi, I have a video and a plot which shows the measures of temperature at each seconds of the video. The matlab plot is a moving point, so both the video and the plot are moving. I have Three question:

• How can I save the moving plot as a video (preferably with a transparent background)?
• Is it possible to position the video near the plot, in the same window? How can I do?
• Is it possible to overlap the moving plot over the video?

- Thanks a lot

Michela

Answer 1

[Shashank]

Hi Michela,

• You can save the moving plot as a video using the 'getframe' function. In the following example I store each frame in an array of structures:

    n = 50;
    XY = 10 * rand(2,n) - 5;
    for i=1:n
      plot(XY(1,i),XY(2,i),'or','MarkerSize',5,'MarkerFaceColor','r')
      axis([-5 5 -5 5])
      a(i)=getframe(gcf);
      pause(.1)
    end

• You can display the video in the same Figure window as the plot. You can refer the following example: http://www.mathworks.com/help/vision/examples/video-display-in-a-custom-user-interface.html
• Please refer the following thread to understand how to plot over a video:

https://www.mathworks.com/matlabcentral/answers/261474-how-can-i-plot-on-top-of-a-video-and-then-save-the-new-video-with-the-plots

-Shashank