#!/usr/bin/perl
#
# $Id: plot.gif,v 1.5 2001/12/20 22:36:15 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA 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 of the License, or
# (at your option) any later version.
#
# LON-CAPA 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 LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/cgi-bin/plot.gif
#
# http://www.lon-capa.org/
#

use strict;
my $output;
my $tmpdir = '/home/httpd/perl/tmp/';
my $filename = $tmpdir . $ENV{'QUERY_STRING'};

$output =<<"END";
Content-type: text/html


END

if (0) {
$output =<<"END";
Content-type: image/gif


END
$output .= `gnuplot $filename`;
}
print $output;