NAME
        OrthoSlice4D

   DESCRIPTION
        This module extracts a 3-D lattice from any 4-D lattice at any grid point
        along one of its axes.  The same data and coordinate types used for the
        input lattice are used for the output lattice.  If the input lattice is not 4-D
        then no slicing will be done; it will just flow through to the output lattice.

   INPUTS

      Input -- Lattice
         This is the 4-D input lattice from which to slice a 3-D section.

   WIDGETS

      Axis -- Radio Box
         This determines which axis to slice along (I, J, K, or T).  The selected
         axis will be left out of the resulting lattice.

      Slice Number -- Slider
         This is the grid point at which to slice along the selected axis.

   OUTPUTS

      Output -- Lattice
         This is the sliced lattice reduced to the appropriate three axes if the
         input lattice is 4-D.  Otherwise, it's a duplicate of the input lattice.

   KNOWN PROBLEMS
      There are no known bugs.

   SEE ALSO
      MultiSlice, OrthoSlice, OrthoSlice2D, OrthoSlice2G, OrthoSlice3D, Slice
      
      -
      
      Hans Vahlenkamp (Hans.Vahlenkamp@noaa.gov)
      Geophysical Fluid Dynamics Laboratory / NOAA
      Princeton University Forrestal Campus
      http://www.gfdl.noaa.gov