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khosb/includes/pear/Image/tests/axis/logarithmic.php
2008-11-26 14:50:40 -08:00

84 lines
3.0 KiB
PHP

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* This is a visual test case, testing the logarithmic axis.
*
* PHP versions 4 and 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: logarithmic.php,v 1.4 2005/08/03 21:21:58 nosey Exp $
* @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 Logarihtmic Axis', 10)),
$Matrix = Image_Graph::factory('Image_Graph_Layout_Matrix', array(2, 2, false)),
5
)
);
$Matrix->setEntry(0, 0, Image_Graph::factory('plotarea', array('axis', 'axis')));
$Matrix->setEntry(0, 1, Image_Graph::factory('plotarea', array('axis', 'axis_log')));
$Matrix->setEntry(1, 0, Image_Graph::factory('plotarea', array('axis_log', 'axis')));
$Matrix->setEntry(1, 1, Image_Graph::factory('plotarea', array('axis_log', 'axis_log')));
function sqr($x) { return $x * $x; }
$DS =& Image_Graph::factory('function', array(1, 10, 'sqr', 9));
for ($row = 0; $row < 2; $row++) {
for ($col = 0; $col < 2; $col++) {
$Plotarea =& $Matrix->getEntry($row, $col);
$AxisX =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_X);
if (is_a($AxisX, 'Image_Graph_Axis_Logarithmic')) {
$AxisX->setTitle('Logarithmic');
} else {
$AxisX->setTitle('Normal');
}
$AxisY =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_Y);
if (is_a($AxisY, 'Image_Graph_Axis_Logarithmic')) {
$AxisY->setTitle('Logarithmic', 'vertical');
} else {
$AxisY->setTitle('Normal', 'vertical');
}
$Plot =& $Plotarea->addNew('line', $DS);
$Plot->setLineColor('red');
}
}
$Graph->done();
?>