<?php

/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
 * This is a visual test case, testing the a set of horizontal line plots.
 * 
 * Test cases:
 * 
 * 1,1: A "normal" simple plot test
 * 
 * 1,2: A plot crossing the x-axis (both positive and negative y-values)
 * 
 * 2,1: A plot with all positive non-zero values
 * 
 * 2,2: A plot with all negative non-zero values 
 *
 * PHP version 5
 *
 * LICENSE: This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or (at your
 * option) any later version. This library 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 Lesser
 * General Public License for more details. You should have received a copy of
 * the GNU Lesser General Public License along with this library; if not, write
 * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * @category   Images
 * @package    Image_Graph
 * @subpackage Tests
 * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
 * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
 * @version    CVS: $Id: line.php 291165 2009-11-23 00:03:23Z neufeind $
 * @link       http://pear.php.net/package/Image_Graph
 */

require_once 'Image/Graph.php';    

// create the graph
$Graph =& Image_Graph::factory('graph', array(600, 400));
// add a TrueType font
$Font =& $Graph->addNew('ttf_font', 'Verdana');
// set the font size to 11 pixels
$Font->setSize(7);

$Graph->setFont($Font);

// create the plotarea
$Graph->add(
    Image_Graph::vertical(
        Image_Graph::factory('title', array('Testing Line Plots', 10)),               
        $Matrix = Image_Graph::factory('Image_Graph_Layout_Matrix', array(2, 2, false)),           
        5            
    )
);

for ($i = 0; $i < 2; $i++) {
    for ($j = 0; $j < 2; $j++) {
        $Matrix->setEntry(
            $i, 
            $j, 
            Image_Graph::factory(
                'plotarea', 
                array('Image_Graph_Axis_Category', 'axis', 'horizontal')
            )
        );
    }
}

$DS[0][0] =& Image_Graph::factory('dataset', array(array('A' => 1, 'B' => 2, 'C' => 0, 'D' => 4, 'E' => 3)));
$DS[0][1] =& Image_Graph::factory('dataset', array(array('A' => 1, 'B' => -2, 'C' => 1, 'D' => 3, 'E' => -1)));
$DS[1][0] =& Image_Graph::factory('dataset', array(array('A' => 2, 'B' => 3, 'C' => 1, 'D' => 4, 'E' => 2)));
$DS[1][1] =& Image_Graph::factory('dataset', array(array('A' => -1, 'B' => -3, 'C' => -2, 'D' => -4, 'E' => -1)));

for ($row = 0; $row < 2; $row++) {
    for ($col = 0; $col < 2; $col++) {
        if (isset($DS[$row][$col])) {
            $Plotarea =& $Matrix->getEntry($row, $col);

            $Plot =& $Plotarea->addNew('line', $DS[$row][$col]);
            $Plot->setLineColor('red');
        }
    }
}

$Graph->done();
?>