Graphics

Movies

You can save any sequence of graphs and then play the sequence back in a short movie. There are two steps to this process:

• Use getframe to generate each movie frame.
• Use movie to run the movie a specified number of times at the specified rate.

Typically, you use getframe in a for loop to assemble the array of movie frames. getframe returns a structure having the following fields:

• cdata - image data in a uint8 matrix. The matrix has dimensions of height-by-width on indexed-color systems and height-by-width-by-3 on truecolor systems.
• colormap - the colormap in an n-by-3 matrix, where n is the number of colors. On truecolor systems, the colormap field is empty.

See image for more information on images.

Animation

Example - Visualizing an FFT as a Movie