140 lines
4.9 KiB
PHP
140 lines
4.9 KiB
PHP
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<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Image_Graph - PEAR PHP OO Graph Rendering Utility.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Plot
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Radar.php,v 1.9 2005/08/03 21:21:52 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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* @since File available since Release 0.3.0dev2
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*/
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/**
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* Include file Image/Graph/Plot/Smoothed/Bezier.php
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*/
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require_once 'Image/Graph/Plot/Smoothed/Bezier.php';
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/**
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* Smoothed radar chart.
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*
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* @category Images
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* @package Image_Graph
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* @subpackage Plot
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: @package_version@
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* @link http://pear.php.net/package/Image_Graph
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* @since Class available since Release 0.3.0dev2
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*/
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class Image_Graph_Plot_Smoothed_Radar extends Image_Graph_Plot_Smoothed_Bezier
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{
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/**
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* Output the plot
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*
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* @return bool Was the output 'good' (true) or 'bad' (false).
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* @access private
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*/
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function _done()
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{
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$this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
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if (is_a($this->_parent, 'Image_Graph_Plotarea_Radar')) {
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$keys = array_keys($this->_dataset);
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foreach ($keys as $key) {
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$dataset =& $this->_dataset[$key];
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if ($dataset->count() >= 3) {
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$dataset->_reset();
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$p1_ = $dataset->_next();
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$p2_ = $dataset->_next();
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$p3_ = $dataset->_next();
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$plast_ = false;
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if ($p3_) {
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while ($p = $dataset->_next()) {
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$plast_ = $p;
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}
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}
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if ($plast_ === false) {
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$plast_ = $p3_;
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}
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$dataset->_reset();
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while ($p1 = $dataset->_next()) {
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$p0 = $dataset->_nearby(-2);
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$p2 = $dataset->_nearby(0);
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$p3 = $dataset->_nearby(1);
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if ($p0 === false) {
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$p0 = $plast_;
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}
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if ($p2 === false) {
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$p2 = $p1_;
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$p3 = $p2_;
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} elseif ($p3 === false) {
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$p3 = $p1_;
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}
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$cp = $this->_getControlPoints($p1, $p0, $p2, $p3);
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$this->_canvas->addSpline(
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array(
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'x' => $cp['X'],
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'y' => $cp['Y'],
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'p1x' => $cp['P1X'],
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'p1y' => $cp['P1Y'],
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'p2x' => $cp['P2X'],
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'p2y' => $cp['P2Y']
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)
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);
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$next2last = $p0;
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$last = $p1;
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}
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$cp = $this->_getControlPoints($p1_, $plast_, $p2_, $p3_);
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$this->_canvas->addSpline(
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array(
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'x' => $cp['X'],
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'y' => $cp['Y'],
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'p1x' => $cp['P1X'],
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'p1y' => $cp['P1Y'],
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'p2x' => $cp['P2X'],
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'p2y' => $cp['P2Y']
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)
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);
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$this->_getFillStyle($key);
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$this->_getLineStyle($key);
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$this->_canvas->polygon(array('connect' => true));
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}
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}
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unset($keys);
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}
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$this->_drawMarker();
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$this->_canvas->endGroup($this->_title);
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return parent::_done();
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}
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}
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?>
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