In Voxx2 you can choose from several predefined trajectories around or through the image stack when creating a movie, as well as using an arbitrary trajectory as in Voxx1. Movies can be saved as uncompressed AVIs or sequences of numbered TIFF, PNG, or raws/binary files. As with snapshots, if pbuffers are supported the movie can be of arbitrary dimensions, otherwise what you see is what you get. In which case make sure no other windows are overlapping the main window during the save.

The predefinied movie choices are:

Pass through

A pass through movie gives the appearance of passing through the stack. You can choose from front to back, back to front, or both. You must also decide which axis to pass through and how many frames it should take to do so.

Rocking

This option creates a movie rocking the stack back and forth on one or more axes. You can choose the axis from the Axis drop-down. Angle specifies how far to rock on an axis. The number of times back and forth is specified by Rotations, and the number of frames per rotation is specified by Frames per Move. If you want the stack to rotate from some position other than the on axis view, check the use current orientation box.

Rotation

This option rotates the stack about one or more axes. The Axis drop-down determines which axis to rotate about. Rotations determines the number of times around, and Frames per Rotation determines how many frames are in each rotation. Again if you want to use the existing orientation, check the use current orientation box.

After you have previewed your movie and are satisfied with the results, choose the desired format from the format drop-down at the top, specify a filename/pattern, and press save. Please be patient while the movies saves. Remember these are uncompressed movies, so they can be quite large. We recommend that uncompressed AVI movies be converted into smaller MPEG-1 files using third-party software (e.g. TMPGenc) before posting the files on a website or submitting them with a paper