This repository has been archived on 2024-04-08. You can view files and clone it, but cannot push or open issues or pull requests.
khosb/includes/pear/Image/Graph/Plot/Smoothed/Radar.php
2008-11-26 14:50:40 -08:00

140 lines
4.9 KiB
PHP

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Image_Graph - PEAR PHP OO Graph Rendering Utility.
*
* 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 Plot
* @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: Radar.php,v 1.9 2005/08/03 21:21:52 nosey Exp $
* @link http://pear.php.net/package/Image_Graph
* @since File available since Release 0.3.0dev2
*/
/**
* Include file Image/Graph/Plot/Smoothed/Bezier.php
*/
require_once 'Image/Graph/Plot/Smoothed/Bezier.php';
/**
* Smoothed radar chart.
*
* @category Images
* @package Image_Graph
* @subpackage Plot
* @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 Release: @package_version@
* @link http://pear.php.net/package/Image_Graph
* @since Class available since Release 0.3.0dev2
*/
class Image_Graph_Plot_Smoothed_Radar extends Image_Graph_Plot_Smoothed_Bezier
{
/**
* Output the plot
*
* @return bool Was the output 'good' (true) or 'bad' (false).
* @access private
*/
function _done()
{
$this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
if (is_a($this->_parent, 'Image_Graph_Plotarea_Radar')) {
$keys = array_keys($this->_dataset);
foreach ($keys as $key) {
$dataset =& $this->_dataset[$key];
if ($dataset->count() >= 3) {
$dataset->_reset();
$p1_ = $dataset->_next();
$p2_ = $dataset->_next();
$p3_ = $dataset->_next();
$plast_ = false;
if ($p3_) {
while ($p = $dataset->_next()) {
$plast_ = $p;
}
}
if ($plast_ === false) {
$plast_ = $p3_;
}
$dataset->_reset();
while ($p1 = $dataset->_next()) {
$p0 = $dataset->_nearby(-2);
$p2 = $dataset->_nearby(0);
$p3 = $dataset->_nearby(1);
if ($p0 === false) {
$p0 = $plast_;
}
if ($p2 === false) {
$p2 = $p1_;
$p3 = $p2_;
} elseif ($p3 === false) {
$p3 = $p1_;
}
$cp = $this->_getControlPoints($p1, $p0, $p2, $p3);
$this->_canvas->addSpline(
array(
'x' => $cp['X'],
'y' => $cp['Y'],
'p1x' => $cp['P1X'],
'p1y' => $cp['P1Y'],
'p2x' => $cp['P2X'],
'p2y' => $cp['P2Y']
)
);
$next2last = $p0;
$last = $p1;
}
$cp = $this->_getControlPoints($p1_, $plast_, $p2_, $p3_);
$this->_canvas->addSpline(
array(
'x' => $cp['X'],
'y' => $cp['Y'],
'p1x' => $cp['P1X'],
'p1y' => $cp['P1Y'],
'p2x' => $cp['P2X'],
'p2y' => $cp['P2Y']
)
);
$this->_getFillStyle($key);
$this->_getLineStyle($key);
$this->_canvas->polygon(array('connect' => true));
}
}
unset($keys);
}
$this->_drawMarker();
$this->_canvas->endGroup($this->_title);
return parent::_done();
}
}
?>