vecview

vecview displays the contents of VoxBo vectors, matrices, and movement parameter files graphically.

Here's the help text:

VoxBo vecview (v1.8.5/Jun 14 2011)
usage:
  vecview <ref> ...         view vector file(s)
  vecview -a <file> ...     view vector files concatenated
  vecview <mat>             view columns of matrix file
  vecview -m <ref>          view movement parameter file
  vecview -h                show help
  vecview -v                show version
notes:
  Movement parameter files are assumed to be sets of six parameters
  for each volume, stored as a 1-dimensional vector, in this order:
  x,y,z,pitch,roll,yaw.

  The following keys are recognized by the grapher. The up and down
  arrows let you zoom in or out.  The tab key lets you switch between
  vectors when more than one is displayed.  The shift key lets you see
  interpolated values (otherwise, clicking on the graph snaps to the
  nearest point).  F1 through F4 select view modes.