Get an arbitrary slice from a 3D object
      writing the 2D object to standard output
      Options are:
      -A       Output all sections in the transformed view.
            This will output each section with the given
            view orientation into files using the output
            filename as a stub. If no output file is
            defined plane_????.wlz will be used
      -a< pitch,yaw[,roll] > viewing angles in degrees. If roll
            is defined then the mode is "absolute"
      -b< bibfile >       bibfile defining the view parameters e.g.
            from MAPaint view or warp input I/O
            Override all other parameter input
      -f< fx,fy,fz >       fixed point position, default - (0,0,0)
      -d< dist >       distance parameter, default - 0.0
      -m< mode >       viewing mode, possible values:
            mode = 0 - up-is-up (default)
            mode = 1 - statue
            mode = 2 - absolute
      -o< output file > Output filename, default to stdout
      -s< scale >       Scale factor, default - 1.0
      -u< ux,uy,uz >       Up vector for up-is-up mode.
            Default: (0,0,-1)
      -h       Help - prints this usage message