volview

 SYNOPSIS
   Display a 3D volume array within a graphical user interface

 USAGE
   volview(3D_or_4D_volume_array [; x=<x0>, y=<y0>, z=<z0>])

 DESCRIPTION
   This function will launch a GUI in which the given volume will be
   displayed, using the optional x,y,z qualifiers to set the initial
   viewing angle.  From there the volume may be rotated along any
   axis, zoomed in or out, or saved to a variety of output file formats.
   
   Right-clicking on the image after rendering will launch a menu from
   which rendering parameters (e.g. colormap, opacity) may be modified.

 NOTES
   The input array may have either 3 or 4 dimensions, none of which may
   be zero in length.  When a 4D array is given the first element is
   selected as the 3D volume to be visualized.

 SEE ALSO
   volpack, SLgtk
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