How to |
Import and Export Animations
|After creating or editing an animation in Mathematica, you can export it for use in other programs. Mathematica can import and export animations in several formats.|
This is a selection of examples from the complete "How to" screencast. »
View the elements available for Import
in a QuickTime file in the Mathematica
documentation ExampleData directory:
Import the QuickTime file as an animation:
to see how many frames are in the animation:
Import a specific frame of the animation:
to import all of the frames in a list. You can do the same thing by using
in place of
to make each frame half its original size:
on each of the frames:
to make a new animation from the processed frames:
Export the new animation to SWF, which is a format based on Flash. The
symbol specifies the most recent output, which in this case is the animation:
If you open the exported animation, you will see that it contains non-functional controls across the top. The animation is essentially a movie of a movie. To exclude these controls from the exported animation, simply export the list of frames directly to a file format supported by animations.
Here, the list of frames (stored in the symbol g3) is exported directly to SWF:
You can also import and export animations that you create in Mathematica.
First, use Table
to create 5 plots of
to create an animation from the list of plots:
As before, exporting the list of frames (in this case the plots) directly to a file format supported for use in animations creates an animation of the frames:
Once an animation is exported, you can also import it back into Mathematica
You can also export Manipulate
objects as animations.
to create an interactive 3D plot of
, where the value of
varies from 0 to 4:
The next three steps are equivalent ways to export the entire Manipulate
object, controls and all, to an animation.
Here the most recent output, which is the Manipulate
object, is exported:
is also stored to
, so exporting
produces the same result:
You can also put the Manipulate
expression inside the Export
are identical. They also contain the framing and controls typical of Manipulate
objects in Mathematica
To export animations that lack the framing or controls, you should generate a list of graphics representing a suitable number of steps used in the Manipulate
, and then export that list to a file format used for animations.
For example, use Table
to create a list plot of
, and specify that
should move from 0 to 4 in steps of 0.2:
Export the list of graphics to the file
You can create a longer, smoother animation by reducing the step size used in Table
. For instance, reducing the step size from 0.2 to 0.1 will result in twice the number of plots in the list, and subsequently twice the number of frames when it is exported as an animation.
Correspondingly, the file size of the animation, as well as the time it takes Mathematica
to create both the plots and animation, will approximately double.