# Copyright (C) 1996 John W. Eaton
# 
# This file is part of Octave.
# 
# Octave is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version.
# 
# Octave is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
# 
# You should have received a copy of the GNU General Public License
# along with Octave; see the file COPYING.  If not, write to the Free
# Software Foundation, 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA. 

function top_title (text)

# usage: top_title (text)
#
# NOTE: this will work only with gnuplot installed with
#       multiplot patch
#
# makes a title with text "text" at the top of the plot 

# Written by Vinayak Dutt, Dutt.Vinayak@mayo.EDU  3 Jul 95 

  if (! gnuplot_has_multiplot)
    error ("top_title: gnuplot does not appear to support this feature");
  endif

  if (nargin != 1)
    usage ("top_title (text)");
  endif

  if (isstr (text))
    set bottom_title;
    set title;
    eval (sprintf ("set top_title \"%s\"", text));
  else
    error ("error: top_title: text must be a string");
  endif

endfunction