#! /bin/csh -f

#
# gettalres
#
# Gets the talairach resolution (in mm) based on the number of slices
#
# Original Author: Doug Greve
# CVS Revision Info:
#    $Author: nicks $
#    $Date: 2007/01/09 22:41:17 $
#    $Revision: 1.2 $
#
# Copyright (C) 2002-2007,
# The General Hospital Corporation (Boston, MA). 
# All rights reserved.
#
# Distribution, usage and copying of this software is covered under the
# terms found in the License Agreement file named 'COPYING' found in the
# FreeSurfer source code root directory, and duplicated here:
# https://surfer.nmr.mgh.harvard.edu/fswiki/FreeSurferOpenSourceLicense
#
# General inquiries: freesurfer@nmr.mgh.harvard.edu
# Bug reports: analysis-bugs@nmr.mgh.harvard.edu
#


if($#argv != 1) then
  echo "USAGE: gettalres instem"
  exit 1;
endif

set instem = $argv[1];

set nslices = `getnslices $instem`;
if($status) then
  echo "ERROR: getnlices: $nslices"
  exit 1;
endif

switch ($nslices)
  case  "32": 
    set res = 8; breaksw;
  case  "64": 
    set res = 4; breaksw;
  case "128": 
    set res = 2; breaksw;
  case "256": 
    set res = 1; breaksw;
  default:
    echo "ERROR: $instem has $nslices slices, can determine tal res"
    exit 1;
    breaksw;
endsw

echo $res;

exit 0;